CN110044228B - High-precision multi-cone deep hole detection device and detection method - Google Patents
High-precision multi-cone deep hole detection device and detection method Download PDFInfo
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- CN110044228B CN110044228B CN201910412604.XA CN201910412604A CN110044228B CN 110044228 B CN110044228 B CN 110044228B CN 201910412604 A CN201910412604 A CN 201910412604A CN 110044228 B CN110044228 B CN 110044228B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a high-precision multi-cone deep hole detection device and a detection method, and belongs to the technical field of machining inspection. The method comprises the following steps: an indicator (2) and a set of gauges (1); the indicator is used for indicating whether the tested piece (3) is qualified or not through reading; the center is provided with a hole, the shape of the outermost side of the big end is matched with that of the end hole of the tested piece, the step surface is vertical to the center of the outermost side, the small end is a slender shaft, a section of plane is milled at the position L4 away from the indicator binding surface, L4 is a coordinate origin 0, and 10 scribed lines with the interval of 1mm are respectively engraved from the upper left side and the lower right side; the complete gauge is used for measuring the tested piece; the indicator comprises a handle shaft (1-1) and a cone-like column (1-4), wherein the cone-like column is matched with a tested taper hole, the handle shaft is inserted into a center hole of the indicator through clearance fit and slides in the center hole, and two alignment lines L1 and L2 are carved on the handle shaft along the circumference according to the calculated size. Compared with the prior art, the device is easy to process, install and use, low in cost and high in durability; the measuring method is stable and reliable and accurate in measurement.
Description
Technical Field
The invention relates to a high-precision multi-cone deep hole detection device and a detection method, and belongs to the technical field of machining inspection.
Background
The barrel is an important part of certain equipment, and the medicine chamber is a key part of the barrel and is a high-precision multi-cone deep hole, and the manufacturing quality of the barrel directly influences the final performance of a product. The space of the medicine chamber is in accordance with the volume value of the medicine chamber determined when the inner trajectory is designed, the structure is adapted to the characteristics of the filling mode and the appearance of the medicine cylinder, the requirements of size precision, shape precision, surface roughness and the like are met after the medicine chamber is manufactured and formed, and the medicine cylinder is convenient to draw out after being launched.
The detection after the processing of the medicine chamber is finished is a technical difficulty in the processing of the barrel, so a high-precision multi-cone deep hole detection method needs to be designed to ensure that all technical indexes of the medicine chamber meet requirements.
Disclosure of Invention
The invention aims to solve the detection problems of a pipe medicine chamber of certain equipment and other high-precision multi-cone deep holes, provides a high-precision multi-cone deep hole detection device and a corresponding detection method, and is suitable for detecting multi-cone deep holes with various similar structures.
The high-precision multi-cone deep hole detection device provided by the invention consists of an indicator and a set of gauges, the indicator reads numerical values through the contact of the set of gauges and an inner cone hole, and the detection method is stable and reliable, accurate in measurement and easy to operate and can guarantee the requirements of various technical parameters.
The purpose of the invention is realized by the following technical scheme.
A high-precision multi-cone deep hole detection device comprises: an indicator and a set of gauges;
the indicator is used for indicating whether the detected part is qualified or not through reading; the large end of the large end is provided with a step surface, the step surface is perpendicular to the center of the outermost side shape of the large end, and the step surface is attached to the end surface of the detected part without clearance when in use; the small end is a slender shaft, a section of plane about 30mm is milled at the position L4 from the indicator attaching surface to serve as an indicator coordinate plane, the position L4 is a coordinate origin 0, 10 scribed lines are respectively carved from the left upper part and the right lower part of the scribed line at intervals of 1mm to serve as positive and negative directions;
the complete gauge is used for measuring the detected part; the device comprises a handle shaft and a cone-shaped sample column, wherein the size of a cone on the outer end face of the cone-shaped sample column is matched with a cone hole of a detected part, the handle shaft is of a cylindrical structure, the radial size of the handle shaft is matched with a central hole of an indicator, the handle shaft can be inserted into the central hole of the indicator through clearance fit and slide in the central hole, the central shaft of the handle shaft is superposed with the center of the cone-shaped sample column, and two alignment lines L1 and L2 are carved on the handle shaft along the circumference according to the checked;
the indicator fits into the gage set through the hole and shaft clearance and ensures that the indicator moves smoothly on the handle shaft of the gage set.
Preferably, the gauge set is a plurality of sets, at least the number of cones of the detected part, and each set corresponds to one cone of the detected part.
Preferably, when a section of cone of the detected part is longer, a plurality of sets of the gauge sets are arranged to detect the qualification of the section of cone.
Preferably, the handle shaft and the cone-like column constituting the complete gauge are of an integrated structure.
Preferably, for convenience of processing, the handle shaft and the cone-like column forming the complete set of gauge are of split structures and are connected in a welding mode, the front section of the handle shaft column body is of a stepped shaft structure, one end of the handle shaft column body is provided with an external thread, a tool withdrawal groove is formed in the thread and the small step, and a nut and a gasket are to be mounted to enable the handle shaft and the cone-like column to be axially fixed; the key groove is milled on the outer circle of the small step, and a key to be installed is connected with the cone-shaped column to enable the handle shaft and the cone-shaped column to be fixed in the circumferential direction; the excircle end face of the large step is vertical to the shaft center and is attached to the small end face of the cone sample column during installation, so that the handle shaft is superposed with the center of the cone sample column, the accuracy of scribing of a set of gauges is ensured, and the manufacturing error is reduced; the cone-shaped column is formed by tightly matching an inner hole of a shaft sleeve type part with an outer circle of a small step of a handle shaft, and milling a key groove on the inner hole wall to be provided with a key to be installed; the connection between the handle shaft and the cone-shaped column is completed through the hole and the key, so that the connection reliability is ensured; the small end face of the taper sample column is vertical to the center of the part and is attached to the outer circle end face of the large step of the handle shaft during installation, so that the center of the handle shaft is overlapped with the center of the taper sample column, and the accuracy of the measuring tool is ensured;
after the handle shaft and the cone-shaped body are connected through the key, the nut and the washer, two points are spot-welded at symmetrical welding points of the connecting part, and the reliability of connection is enhanced.
Preferably, the scribed line positions L1, L2 are obtained by:
1. calculating the inclination of the taper hole, namely the inclination alpha of the taper sample column according to the two diameter sizes and the lengths of the taper hole;
2. calculating the distance a between two scribed lines of the handle shaft on the complete set of gauges through the aperture tolerance and the inclination alpha;
3. the position size L1 of the first scribe line is L6+ L4, where L6 is a set distance;
the position size L2 of the second scribe line is L1+ a.
Preferably, the handle shaft and the cone-like column are made of materials with high hardness and good wear resistance.
Preferably, the handle shaft and the cone-shaped column are made of high-carbon alloy tool steel through heat treatment.
Preferably, the roughness of the outer circle surface of the handle shaft, the surface of the cone-like column and the inner wall of the indicator hole is high.
A high-precision multi-cone deep hole detection method realizes detection through the following processes:
before use, the detection device completes periodic identification, and measures the dimensional accuracy and the position degree according to the pattern and the abrasion limit; horizontally placing the detected part on a V-shaped frame; the complete set of gauges are arranged on the working platform according to the serial numbers, and the indicator is arranged beside the complete set of gauges.
When the device is used, the complete set of gauge is penetrated into the indicator hole, and the indicator binding surface is bound with the end surface of the detected part without clearance; holding the tail end of the handle shaft, pushing the handle shaft axially, enabling the handle shaft to move smoothly in the indicator hole at the same time, enabling the cone sample to move slowly along the inner wall of the hole until the cone sample cannot move forwards, reading a numerical value at the moment, and judging a detection result;
when the coordinate reticle '0' position on the indicator falls between two circumference reticles on the complete set of gauges, the dimensional accuracy, the shape accuracy and the position accuracy of the cone can be judged to be qualified;
when the position of the coordinate reticle '0' on the indicator falls outside the two reticles on the complete set of gauges, the unqualified reticle can be judged, and at the moment, the numerical values of the two circumferential reticles at the 'positive and negative' positions of the coordinate can be read to obtain the out-of-tolerance condition; if the two circumference scribed lines are positioned at the positive position of the coordinate, the coordinate value of the scribed line at the left side is the numerical value of the axial out-of-tolerance, and the specific conditions that the radial size of the outlet is smaller and the axial size is not in place are reflected;
if the two circumference scribed lines are positioned at the negative position of the coordinate, the coordinate value of the scribed line on the right side is the numerical value of the axial out-of-tolerance, and the specific situation that the radial size of the outlet is larger and the axial size is larger is reflected.
Advantageous effects
Compared with the prior art, the device and the detection method provided by the invention have the following characteristics:
1. the method is stable and reliable, accurate in measurement and easy to operate, and reduces the technical requirements on detection personnel;
2. the cone-shaped column material is high-carbon alloy tool steel, and the hardness of the part is improved through heat treatment, so that the wear resistance is ensured, and the detection precision of batch detection is ensured;
3. the detection device is divided into an indicator and a set of gauges, on one hand, the set of gauges or the indicator is convenient to replace according to the size of the taper hole, on the other hand, the standardized design of the gauge is convenient, and in the case of using the same indicator, parts with similar specifications are detected by using different set of gauges;
4. the cone-shaped column and the handle rod are positioned through a key, so that the degree of freedom is limited, and the two parts are prevented from rotating; the connection is realized through the connection of a nut, a washer and the like, and spot welding is carried out, so that the rigidity strength and the reliability of the connection are ensured, the stability is realized in the using process, and the measuring precision is not influenced;
5. the method is suitable for measuring various high-precision multi-cone deep holes, is a comprehensive detection method, and can be used for intermittent or continuous multi-cone deep holes;
6. the detection device has simple structure, easy processing, installation and use, low manufacturing cost and high durability;
7. the method is suitable for various batches, is particularly suitable for large-batch detection, and can improve the detection efficiency, reduce the cost and reduce the technical requirements on detection personnel.
Drawings
FIG. 1 is a schematic view of the overall structure of the detecting device;
FIG. 2 is a schematic diagram of a set of gauges;
FIG. 3 is a schematic view of a handle shaft;
FIG. 4 is a cross-sectional view of the handle axis A-A of FIG. 3;
FIG. 5 is a schematic view of the handle of FIG. 3 in an axial direction B;
FIG. 6 is a schematic view of a taper sample column structure; (a) a side view, (b) a front view;
FIG. 7 is a schematic view of the indicator structure; (a) a front view, (b) a side view;
FIG. 8 is a cross-sectional view of indicator B-B of FIG. 7;
FIG. 9 is a schematic view of the present detection device;
FIG. 10 is a schematic view of an indicator showing taper holes being acceptable;
FIG. 11 is a schematic view of the indicator showing a smaller size of the tapered bore;
FIG. 12 is a schematic view of the indicator showing an enlarged size of the tapered bore;
FIG. 13 is a schematic diagram of the detection method.
Reference numerals: 1-a complete set of gauges; 2-an indicator; 3-the part to be detected; 1-1-handle shaft; 1-2-scribing; 1-3-symmetrical welds; 1-4-pyramid-like columns; a 1-5-bond; 1-6-nut; 1-7-gasket; 2-1-pointer coordinate plane; 2-2-indicator faying surface; 3-1-taper hole I; 3-2-taper hole II; 3-3-taper hole III; 3-4-taper hole IV; 4-1-the indicator shows that the taper hole is qualified; 4-2-the indicator shows that the size of the taper hole is smaller; the 4-3-indicator shows a large taper hole size.
Detailed Description
For the purpose of illustrating the objects, technical solutions and advantages of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1, the detection device of the present invention comprises two major components, an indicator 2 and a set of gauges 1. In practical use, the complete set of gauges 1 is in contact with an inner taper hole of the detected part 3 (see fig. 9) and accurately reflects the axial displacement amount to the indicator 2 according to the proportion of 1:1, so that detection data are obtained.
The indicator 2 fits with the complete gauge 1 through a hole and shaft clearance and ensures that the indicator 2 can move smoothly on the handle shaft 1-1 of the complete gauge 1.
When the device is used, when the coordinate reticle '0' position on the indicator 2 falls between two reticles on the complete set of gauges 1, the dimensional accuracy, the shape accuracy and the position accuracy of the taper can be judged to be qualified; when the position of the coordinate reticle '0' on the indicator 2 falls outside the two reticles on the complete set of gauges, the judgment of disqualification can be carried out, and at the moment, the numerical values of the two reticles at the 'positive and negative' positions of the coordinate can be read, so that the out-of-tolerance condition can be obtained.
Fig. 2 shows a schematic structural diagram of a complete gauge 1, which is an assembly welding part and comprises a handle shaft 1-1, a cone-shaped column 1-4, a key 1-5, a nut 1-6 and a washer 1-7.
After the handle shaft 1-1 and the cone-shaped column 1-4 are connected through accessories (a key 1-5, a nut 1-6 and a washer 1-7), two points are welded at the connecting position by symmetrical welding points 1-3, so that the connection reliability is enhanced.
The number of the complete gauge is determined according to the number of the taper holes of the detected parts, and the taper holes of the parts can be continuous or discontinuous. At least one set of taper hole is designed in each section, if the axial size of a certain section of taper hole is longer, in order to enable the detection result to be more accurate, 2-3 sets of taper holes are configured according to the axial size. Assuming that the number of the taper holes of the detected part is 4, at least 4 sets of complete gauges are required to be configured.
The total length L, the scribed line position sizes L1 and L2, the distance a between two scribed lines and the size end size of the cone are all obtained according to the size of the workpiece, wherein the distance a between the two scribed lines is the axial tolerance of a certain cone in the qualified range.
As shown in fig. 13, the L1, L2 scribe line positions can be obtained by the following process:
1. calculating the inclination of the taper hole, namely the inclination alpha of the taper sample column 1-4 according to the two diameter sizes and the lengths of the taper hole;
2. calculating the distance a between two scribed lines of the handle shaft on the complete set of gauges through the aperture tolerance and the inclination alpha;
3. the position size L1 of the first scribe line is L6+ L4(L6 is a set distance);
the position size L2 of the second scribe line is L1+ a.
Fig. 3 is a schematic view of the handle shaft 1-1, which is an elongated stepped shaft. One end is an external thread, a tool withdrawal groove is designed at the thread and the small step, and a nut and a gasket are to be installed; a key groove is milled on the outer circle of the small step, a sectional view of a handle shaft A-A is shown in fig. 4, a schematic view of a handle shaft B is shown in fig. 5, and a key to be installed is connected with a vertebral body sample column; the excircle end face of the large step is perpendicular to the shaft center and is attached to the small end face of the cone sample column during installation, so that the center of the handle shaft coincides with the center of the cone sample column, the accuracy of scribing of a set of gauges is guaranteed, and the manufacturing error is reduced. The other end of the handle shaft is a long end, two alignment lines L1 and L2 are carved on the position along the circumference according to the calculated size, and an indicator is to be installed. In addition, the round surface requires high roughness and has wear resistance, so the requirements on selecting the handle shaft material and heat treatment are strict, the embodiment selects the high-carbon alloy tool steel material, the hardness of the part is improved through heat treatment, and the wear resistance is ensured.
Fig. 6 shows a schematic structural diagram of the taper-like columns 1-4, which are shaft sleeve type parts. The inner hole is tightly matched with the outer circle of the small step of the handle shaft, key grooves are milled on the wall of the inner hole, and keys are to be installed; the connection between the handle shaft and the cone-shaped column is completed through the hole and the key, so that the connection reliability is ensured; the small end face of the taper sample column is perpendicular to the center of the part and is attached to the end face of the outer circle of the large step of the handle shaft during installation, so that the center of the handle shaft and the center of the taper sample column coincide, and the accuracy of the measuring tool is guaranteed.
The cone-shaped columns 1-4 are required to have high dimensional accuracy, shape accuracy, surface roughness and wear resistance; the material is high-carbon alloy tool steel, and the hardness of the part is improved through heat treatment, so that the service life is prolonged.
Fig. 7 is a schematic structural diagram of the indicator 2, which is a shaft-like component. To ensure the manufacturing accuracy of the indicator 2 and to prevent welding deformations, this part is preferably a single piece, not allowing welding. The outermost side of the big end is provided with a cone, the taper of the cone is consistent with that of the head taper hole of the detected part 3, and the center of the cone is perpendicular to the step surface, so that the step surface is attached to the end surface of the detected part 3 without a gap when the device is used. The small end is a slender shaft, the middle part is a stepped hole, the roughness of the inner wall of the hole is high, the handle shaft 1-1 penetrates through the hole and is in clearance fit, and the indicator 2 can be guaranteed to move smoothly on the handle shaft 1-1 of the complete set of gauge 1.
The position of the indicator 2 from the end face (indicator abutting face 2-2) L4 is milled into a plane of about 30mm as an indicator coordinate plane 2-1, as shown in a cross-sectional view of the indicator B-B in fig. 8. The position of L4 was the origin of coordinates, and 10 scribe lines were formed from the upper left and lower right of the scribe line at intervals of 1mm as the positive and negative directions. The indicator binding surface 2-2 is required to be on a plane, so that the binding property and the accuracy of a detection result are ensured.
The detection method of the multi-cone deep hole detection device comprises the following steps:
before use, the detection device completes periodic identification, and measures the dimensional accuracy and the position degree according to the pattern and the abrasion limit; horizontally placing the detected part 3 on a V-shaped frame; the complete gauge 1 is arranged on the working platform according to the serial number, and the indicator 2 is arranged beside the complete gauge 1.
When in use, the complete set of gauge 1 is penetrated into the indicator hole, and the indicator binding surface 2-2 is bound with the end surface of the detected part 3 without clearance; holding the end of the handle shaft 1-1, pushing axially, enabling the handle shaft 1-1 to move smoothly in the hole of the indicator 2, enabling the cone-shaped column 1-4 to move slowly along the inner wall of the hole until the cone-shaped column cannot move forwards, reading a numerical value at the moment, and judging a detection result.
When the coordinate reticle '0' position on the indicator 2 falls between the two circumference reticles on the complete set of gauges 1, the dimensional accuracy, the shape accuracy and the position accuracy of the cone can be judged to be qualified, and the qualified schematic diagram of the cone hole displayed by the indicator is shown in figure 10.
When the position of the coordinate reticle '0' on the indicator 2 falls outside the two reticles on the complete set of gauges 1, the judgment of the unqualified reticle can be carried out, and at the moment, the numerical values of the two circumferential reticles at the 'positive and negative' positions of the coordinate can be read, so that the out-of-tolerance condition can be obtained. If the two circumferential scribed lines are located at the 'positive' position of the coordinate, the coordinate value of the scribed line on the left side is the numerical value of the axial out-of-tolerance, which reflects the specific situation that the radial size of the hole is small and the axial size is not in place, see the schematic diagram of the indicator showing the small size of the taper hole, see fig. 11.
If the two circumferential scribed lines are located at the negative position of the coordinate, the coordinate value of the scribed line on the right side is the numerical value of the axial out-of-tolerance, the specific situation that the radial size of the hole is larger and the axial size is larger is reflected, see the schematic diagram that the size of the taper hole is larger displayed by the indicator, see fig. 12.
In order to illustrate the contents and embodiments of the present invention, specific examples are given herein. The details introduced in the examples are not intended to limit the scope of the claims but to assist in understanding the present invention. Those skilled in the art will understand that: various modifications, changes or substitutions to the preferred embodiment steps are possible without departing from the spirit and scope of the invention and its appended claims. Therefore, the present invention should not be limited to the disclosure of the preferred embodiments and the accompanying drawings.
Claims (10)
1. The utility model provides a many cones of high accuracy deep hole detection device which characterized in that: the method comprises the following steps: an indicator (2) and a set of gauges (1);
the indicator (2) is used for indicating whether the detected part (3) is qualified or not through reading; the large end outer side of the large end is provided with a hole for the complete set of gauge (1) to pass through, the shape of the outer side of the large end is matched with the shape of the hole at the end part of the detected part (3) and is used for inserting the detected part (3) through clearance fit, the inner side of the large end is provided with a step surface, the step surface is perpendicular to the center of the outer side of the large end, and the step surface is attached to the end surface of the detected part (3) without clearance when the large end outer side gauge is; the small end is a slender shaft, a section of plane about 30mm is milled at the position L4 from the attaching surface (2-2) of the indicator to be used as a coordinate plane (2-1) of the indicator, the position L4 is a coordinate origin 0, 10 scribed lines are respectively carved from the left upper part and the right lower part of the scribed line at the interval of 1mm to be used as the positive direction and the negative direction;
the complete gauge (1) is used for measuring the detected part (3); the device comprises a handle shaft (1-1) and a cone-shaped column (1-4), wherein the size of a cone on the outer end face of the cone-shaped column (1-4) is matched with a conical hole of a detected part (3), the handle shaft (1-1) is of a cylindrical structure, the radial size of the cone-shaped column is matched with the central hole of an indicator (2), the cone-shaped column is inserted into the central hole of the indicator (2) through clearance fit and slides in the central hole, the central shaft of the handle shaft (1-1) is overlapped with the center of the cone-shaped column (1-4), and two alignment lines L1 and L2 are carved on the handle shaft (1-1) along the circumference according to the size after calculation;
the indicator (2) is matched with the complete gauge (1) through the hole and the clearance of the shaft, and the indicator (2) can be ensured to move smoothly on the handle shaft (1-1) of the complete gauge (1).
2. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: the whole set of gauges (1) is a plurality of sets, at least the number of cones of the detected parts (3), and each set corresponds to one cone of the detected parts (3).
3. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: when a section of cone of the part to be detected (3) is long, a plurality of sets of gauge sets (1) are arranged to detect the qualification of the section of cone.
4. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: the handle shaft (1-1) and the cone-like column (1-4) are of an integrated structure.
5. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: for convenience in processing, the handle shaft (1-1) and the cone-shaped column (1-4) are of split structures and are connected in a welding mode, the front section of the column body of the handle shaft (1-1) is of a stepped shaft structure, one end of the column body is provided with an external thread, a tool withdrawal groove is formed in the positions of the thread and a small step, and a nut (1-6) and a gasket (1-7) to be installed enable the handle shaft (1-1) and the cone-shaped column (1-4) to be axially fixed; the milled key groove on the outer circle of the small step is used for connecting the cone-shaped column through a key (1-5) so as to circumferentially fix the handle shaft (1-1) and the cone-shaped column (1-4); the excircle end face of the large step is vertical to the shaft center and is attached to the small end face of the cone sample column (1-4) during installation, so that the handle shaft (1-1) is superposed with the center of the cone sample column (1-4), the accuracy of scribing (1-2) of the complete set of gauge (1) is ensured, and the manufacturing error is reduced; the cone-shaped column (1-4) is formed by tightly matching an inner hole of a shaft sleeve type part with an outer circle of a small step of a handle shaft (1-1), and a key groove is milled on the inner hole wall to be provided with a key (1-5); the connection between the handle shaft (1-1) and the cone-shaped column (1-4) is completed through the hole and the key (1-5), so that the connection reliability is ensured; the small end face of the taper sample column is vertical to the center of the part and is attached to the end face of the excircle of the large step of the handle shaft (1-1) during installation, so that the centers of the handle shaft (1-1) and the taper sample column (1-4) are superposed, and the accuracy of the measuring tool is ensured;
after the handle shaft (1-1) and the cone-shaped column (1-4) are connected through the key (1-5), the nut (1-6) and the washer (1-7), two points are spot-welded at the symmetrical welding point (1-3) of the connecting part, so that the reliability of connection is enhanced.
6. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: the handle shaft (1-1) and the cone-shaped column (1-4) are made of materials with high hardness and good wear resistance.
7. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: the handle shaft (1-1) and the cone-shaped column (1-4) are made of high-carbon alloy tool steel through heat treatment.
8. The high-precision multi-cone deep hole detection device according to claim 1, characterized in that: the roughness of the excircle surface of the handle shaft (1-1), the surface of the cone-like column (1-4) and the inner wall of the hole of the indicator (2) is high.
9. The high-precision multi-cone deep hole detection device according to any one of claims 1 to 8, characterized in that: the positions of the L1, L2 are obtained by the following process:
1. calculating the inclination of the taper hole, namely the inclination alpha of the taper sample column according to the two diameter sizes and the lengths of the taper hole;
2. calculating the distance a between two scribed lines of the handle shaft (1-1) on the complete set of gauge (1) through the aperture tolerance and the inclination alpha;
3. the position size L1 of the first scribe line is L6+ L4, where L6 is a set distance;
the position size L2 of the second scribe line is L1+ a.
10. A high-precision multi-cone deep hole detection method based on the device of claim 1 is characterized in that: detection is achieved by the following process:
before use, the detection device completes periodic identification, and measures the dimensional accuracy and the position degree according to the pattern and the abrasion limit; horizontally placing the detected part (3) on a V-shaped frame; the complete set of gauges (1) are arranged on the working platform according to the serial numbers, and the indicator (2) is arranged beside the complete set of gauges (1);
when in use, the complete set of gauge (1) penetrates into the hole of the indicator (2), and the joint surface of the indicator (2) is jointed with the end surface of the detected part (3) without clearance; holding the tail end of the handle shaft (1-1), pushing the handle shaft axially, enabling the handle shaft (1-1) to move smoothly in the hole of the indicator (2) at the same time, enabling the cone sample to move slowly along the inner wall of the hole until the cone sample cannot move forwards, reading a numerical value at the moment, and judging a detection result;
when the coordinate reticle '0' position on the indicator (2) falls between two circumference reticles (1-2) on the complete set of gauges (1), the dimensional accuracy, the shape accuracy and the position accuracy of the cone can be judged to be qualified;
when the position of a coordinate reticle (0) on the indicator (2) falls outside two reticles (1-2) on the complete set of gauges (1), the judgment of disqualification can be carried out, at the moment, the numerical values of the positions of the two circumference reticles (1-2) at the positive and negative positions of the coordinate can be read, and the out-of-tolerance condition is obtained; if the two circumferential scribed lines (1-2) are positioned at the positive position of the coordinate, the coordinate value of the scribed line at the left side is the numerical value of the axial out-of-tolerance, and the specific conditions that the radial size of the outlet is smaller and the axial size is not in place are reflected;
if the two circumferential scribed lines (1-2) are positioned at the negative position of the coordinate, the coordinate value of the scribed line on the right side is the numerical value of the axial out-of-tolerance, and the specific situation that the radial size of the outlet hole is larger and the axial size is larger is reflected.
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| CN114042950B (en) * | 2021-11-17 | 2024-05-03 | 河南中原特钢装备制造有限公司 | Machining method for machining conical flat bottom ultra-deep blind hole and forming cutter |
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| KR101301582B1 (en) * | 2011-09-15 | 2013-08-29 | 한국타이어 주식회사 | Sensor starting point return apparatus of tire balance measuring instrument |
| CN202329460U (en) * | 2011-10-22 | 2012-07-11 | 中信戴卡轮毂制造股份有限公司 | Taper hole measurement device |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
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| CN205580351U (en) * | 2016-03-31 | 2016-09-14 | 南通倍塔新星电子有限公司 | Smart bore depth degree detection device of special tapering of location slider |
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