CN201133812Y - Bullet or tools trace measuring apparatus - Google Patents
Bullet or tools trace measuring apparatus Download PDFInfo
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- CN201133812Y CN201133812Y CNU2007201948740U CN200720194874U CN201133812Y CN 201133812 Y CN201133812 Y CN 201133812Y CN U2007201948740 U CNU2007201948740 U CN U2007201948740U CN 200720194874 U CN200720194874 U CN 200720194874U CN 201133812 Y CN201133812 Y CN 201133812Y
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Abstract
A measuring apparatus for an imprint of a warhead or a tool includes a working platform and measuring sensors. The measuring apparatus is characterized in that a measuring apparatus sensor relates to two groups of the measuring sensors consisting of a non-contact measuring head and a contact measuring head; the two groups of measuring sensors are connected with a computer through a measuring and data collection circuit; the measuring apparatus for the imprint of a warhead or a tool can realize two imprint measuring modes of contact and not contact types and integrates the advantages of the two which not only can select to use different measuring modes according to the measuring conditions, but also can carry out real time comparison and warp correction on the two measuring results, thus enlarging the range of the measuring objects; the utility model not only has a low cost, but also can carry out precious and reasonable measurement on the surface of a complex workpiece to be measured; the utility model can be applied to measure the 2D or 3D imprint of the project roughness of the surfaces of various complex workpieces to be measured.
Description
Technical field
The utility model belongs to engineering surface measuring technique and apparatus field thereof, is specifically related to a kind of small vestige of workpiece such as bullet or instrument that is used for and measures, and possess the bullet or the tool mark measuring instrument of contact and contactless two kinds of metering systems.
Background technology
The measurement of vestige generally adopts the method for digital photography to obtain the two-dimensional image of the amplification of article vestige to be measured, because small vestige is three-dimensional, the machinery wiping takes place for generally relevant parts and object under test surface draws and stays, often be depression, stereo structure, its shape and fine feature all are distributed in three dimensions, so two-dimensional image can't provide the complete description of vestige.For example bullet is being carried out vestige when measuring, vestige plane picture two-dimensional measurement instrument commonly used extracts the land border, and what relied on is the variation of edge gray-scale value, and there is bigger error in the true form that its gray-scale value can not reflecting edge.In addition, conventional vestige plane picture two-dimensional measurement instrument can not fully write down the fine feature of object under test, can not fully show the fine difference of object under test.
The three-dimensional measurement technology is emerging engineering surface metering system, it requires surveying instrument vertical survey and horizontal survey scope bigger, especially horizontal scanning scope should be at several millimeter or bigger, so that the relation of the shape error on comprehensive assessment surface, surface wave temperature and surfaceness and to the surface of the work Effect on Performance.The employed instrument that is used for the engineering surface topography measurement adopts the diamond stylus contourgraph of contact measurement method to occupy main status at present, and this is because contact pin type instrument office has reliable, easy to operate, the advantages of cheap price of measurement.But, this diamond stylus contourgraph has two main shortcomings: this quasi-instrument belongs to instrument with contacts on the one hand, there are certain ergometry in contact pilotage and surface of the work, and increase along with the increase of range, sharp diamond stylus is meeting defective work piece surface under certain gaging pressure, and influences the authenticity of measurement result.Simultaneously, contact pilotage can be damaged easily in measuring process.Therefore, for some soft metals, biochemical material, rubber surface, and the surface that contains information and ultraprecise processing work, generally should not adopt this kind mode and instrument to measure, on the other hand, be subjected to the influence of measuring head radius, shape, ergometry and measuring head dynamic property, contact pin type apparatus measures speed is slow, generally be about 1mm/s, particularly in the measuring three-dimensional morphology process, need to consume the too much time, thereby introduce the error that temperature drift brings.
In order to overcome the above-mentioned shortcoming of contact measurement method and equipment, contactless measurement based on various measuring principles is developed rapidly, this method can realize the nondestructive measurement of surface topography and evaluation, and help to improve measuring accuracy and measuring speed, therefore be subjected to people's extensive attention and widespread usage.Topography measurement for engineering surface, illuminant-pointer type contourgraph based on the focusing-detection principle is the instrument of standing employing, yet this contourgraph is had relatively high expectations to the cleanliness of surface of the work, the degree of tilt of surface of the work has bigger influence to measurement structure, and also there is influence in the reflectivity of workpiece material to measurement result.
And in the engineering survey practical operation, it is very diversified producing the surface that needs to measure with research, need purchase at different measured surfaces, use different surveying instruments, then can't carry out correct measurement and evaluation for the diversified measured surface of same workpiece for measurement.
Adopt the formation of the vestige of three-dimensional measurement technical research bullet/instrument, Changing Pattern is also analyzed and is checked, can be used for distinguish sending out and variety of gun and instrument are penetrated in identification, thereby provide the evidence of solving a case, for judicial department quick, track down important cases such as gunslinging accurately strong support and scientific basis are provided, also can be used for checking firearms simultaneously, the performance condition of bullet, but because there are above-mentioned defective in existing contact measuring instrument and non-contact measurement instrument, and can't carry out respective detection result's contrast, therefore can't proofread and correct two kinds of measured deviations that measuring instrument produced.
The utility model content
The purpose of this utility model is to provide a kind of and can be used for measuring bullet or the small vestige of instrument is measured, and can adopt contact and contactless dual mode to carry out the two dimension of vestige or bullet or the tool mark measuring instrument that three-dimensional Trace Data is gathered, its reasonable in design, applied widely, and the contrast and the complementary correction analysis of measurement data can be provided, solved many defectives and deficiency that existing contact type measurement instrument and non-contact measurement instrument exist.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of bullet or tool mark measuring instrument, comprise worktable and survey sensor, it is characterized in that described measuring instrument sensor is two groups of survey sensors that non-contact measurement head and contact type measurement head are formed, these two groups of survey sensors are by measuring and data acquisition circuit connection computing machine.
The inductance signal wire of described non-contact measurement head and contact type measurement head inserts same measurement and data acquisition circuit, and, calculate interior resident have shared worktable scanning system and COMPUTER PARAMETER assessment module by this measurement and data acquisition circuit connection computing machine.
Described worktable be the X/Y that moves of two dimension to worktable, X/Y adopts AC servo machinery driving to worktable, computing machine connects by one drive circuit and drives the AC servo motor of X/Y to worktable.
Described X/Y is provided with the workpiece for measurement stationary installation on worktable, above X workpiece for measurement stationary installation, be provided with two groups of survey sensors that non-contact measurement head and contact type measurement head are formed, described non-contacting measuring head is a measuring microscope, and described contact type measurement head is a phase grating interfere type PGI feeler.
Described X/Y is arranged on the base to stationary table, and the opposite side of described base fixedly installs a column, and non-contact measurement head and contact type measurement head movable set are on described column.
Described contact type measurement head movable set is in the lower end of column, and non-contact measurement head movable set is in the upper end of column.
Described X/Y fixedly installs rotation and the clamping device that is used for fixing bullet or instrument on worktable, rotation and clamping device connect AC servo motor and by its driving, AC servo motor connects computing machine by one drive circuit.
Specifically, stationary table is arranged on the base described in this bullet or the tool mark measuring instrument, another of described base fixedly installs column, movable set contact type measurement head and non-contact measurement head on the column, described non-contacting measuring head is a measuring microscope, and the contact type measurement head is a phase grating interfere type PGI feeler; Described worktable be the X/Y that moves of two dimension to worktable, X/Y adopts AC servo machinery driving to worktable, computing machine connects by one drive circuit and drives the AC servo motor of X/Y to worktable; Described X/Y is provided with the rotation and the clamping device of fixing bullet or instrument on worktable, rotation and clamping device connect AC servo motor and by its driving, AC servo motor connects computing machine by another driving circuit.
This bullet or tool mark measuring instrument have been concentrated the advantage of contact and non-contact measurement instrument, have enlarged the scope of measuring object, can select different measuring methods for use with specific (special) requirements according to the actual conditions on measured workpiece surface.When adopting the contact type measurement head, by the non-cpntact measurement head that rotary sleeve is contained on the column it to be removed, the inductance signal wire of contact type measurement head inserts shared measurement and data acquisition circuit; When adopting the non-contact measurement head, by the contact type measurement head that rotating head is contained on the column it to be removed, the inductance signal wire of non-contact measurement head inserts shared measurement and data acquisition circuit.
This bullet or tool mark measuring instrument adopt PGI contact displacement sensor and measuring microscope to realize contacting measurement with contactless dual mode respectively, computing machine can combine two kinds of metering systems, concentrate the advantage of two kinds of measuring methods, enlarged the scope of measuring object, and can select different measuring methods for use with specific (special) requirements according to the actual conditions of measured workpiece.Computing machine can be proofreaied and correct the measuring error of two kinds of measuring methods easily, and can realize the contrast of two kinds of vestige pictures by the data acquisition to two kinds of measuring heads.
Adopt X/Y can satisfy measurement, and can realize two and three dimensions Trace Data collection, carry out the measurement of various Trace Data more flexibly workpiece planarization to be measured surface to plane and three-dimensional face to worktable.
The beneficial effects of the utility model are, this bullet or tool mark measuring instrument can be realized contact and contactless two kinds of vestige metering systems, and concentrated the two advantage, both can select to use different metering systems according to measuring condition, also can contrast in real time and offset correction two kinds of measurement results, enlarged the scope of measuring object, not only cost is low, can also carry out accurately and reasonably measure the workpiece for measurement surface of complexity, measure applicable to the two dimension or the three-dimensional vestige of the engineering roughness on the workpiece for measurement surface of various complexity.
Description of drawings
Fig. 1 is the composition structural representation of bullet or tool mark measuring instrument in the utility model embodiment.
Embodiment
As Fig. 1, the stationary table of this bullet or tool mark measuring instrument is arranged on the base, and another of described base fixedly installs column 1, movable set measuring microscope and phase grating interfere type PGI feeler 2 on the column; Worktable be the X/Y that moves of two dimension to worktable, X/Y adopts AC servo machinery driving to worktable, computing machine connects by driving circuit 2 and drives the AC servo motor of X/Y to worktable; X/Y is provided with rotation and the clamping device that fixing bullet or instrument are used on worktable, rotation and clamping device connects the AC servo motor of this device and by its driving, AC servo motor connects computing machine by driving circuit 1.The inductance signal wire of measuring microscope and phase grating interfere type PGI feeler 2 inserts same measurement and data acquisition circuit, and, calculate interior resident have shared worktable scanning system and COMPUTER PARAMETER assessment module by this measurement and data acquisition circuit connection computing machine.
Adopt this bullet or tool mark measuring instrument to carry out three-dimensional measurement to bullet trace, the maximum measurement range 2mm of its vertical direction, resolution 0.1um by contact and noncontact dual mode; Horizontal shift scope 50mm * 50mm, minimum interval 0.2um.Before the measurement, operation rotation and clamping device clamping be bullet 3 fixedly, and the coaxiality error that guarantees warhead axis and rotation centerline is controlled within the specific limits, computing machine is by the AC servo motor of driving circuit 1 control X/Y worktable, and the PGI feeler or the measuring microscope of suit on the mobile column, the effective range that makes the tested position of bullet enter PGI feeler and measuring microscope, and can be by the relevant measurement sampling parameter of UI Preferences.After measuring beginning, computing machine is by driving circuit 1 AC servo motor driven rotary device and then drive the bullet rotation, and according to the difference of selecting metering system, measuring process is divided into contact and contactless.During contact type measurement, start the positional information that the PGI feeler is gathered contact pilotage, until having gathered tested one ring cross-section profile of bullet.After having surveyed a circle, X/Y moves axially certain distance to worktable along bullet, repeats above-mentioned steps until gathering complete bullet zone.During non-contact measurement, according to pickup area the measured zone of bullet is divided into some five equilibriums, by image capturing system the bullet image that obtains in the measuring microscope is gathered in real time, after having gathered a sub regions, rotation and clamping device drive bullet and turn over a calibration, straight whole measured zone of having gathered bullet entirely.
The tool plan vestige is being measured, measured piece can directly be fixed on the X/Y worktable, the contact pilotage contact instrument of PGI feeler, drive X to AC servo motor, contact pilotage streaks instrument, obtain tool surfaces vestige contour curve, according to the curve data that collects, parameters such as the height of evaluation groove, peak valley and spacing.If measure three-dimensional vestige, can at X after measurement is finished, drive Y to AC servo motor, tested instrument moves a determining deviation, and measured X is to profile, and duplicate measurements process like this can measure the three-dimensional vestige of tool surfaces.Bullet that records and tool surfaces raw data can offer feature extraction and analysis system processes and demonstration after error such as replenishes at pre-service.
Claims (8)
1. bullet or tool mark measuring instrument, comprise worktable and survey sensor, it is characterized in that described measuring instrument sensor is two groups of survey sensors that non-contact measurement head and contact type measurement head are formed, these two groups of survey sensors are by measuring and data acquisition circuit connection computing machine.
2. bullet according to claim 1 or tool mark measuring instrument, the inductance signal wire that it is characterized in that described non-contact measurement head and contact type measurement head inserts same measurement and data acquisition circuit, and, calculate interior resident have shared worktable scanning system and COMPUTER PARAMETER assessment module by this measurement and data acquisition circuit connection computing machine.
3. bullet according to claim 1 or tool mark measuring instrument, it is characterized in that described worktable is that the mobile X/Y of two dimension is to worktable, X/Y adopts AC servo machinery driving to worktable, and computing machine connects the AC servo motor of driving X/Y to worktable by one drive circuit.
4. bullet according to claim 3 or tool mark measuring instrument, it is characterized in that described X/Y is provided with the workpiece for measurement stationary installation on worktable, above X workpiece for measurement stationary installation, be provided with two groups of survey sensors that non-contact measurement head and contact type measurement head are formed, described non-contacting measuring head is a measuring microscope, and described contact type measurement head is a phase grating interfere type PGI feeler.
5. bullet according to claim 3 or tool mark measuring instrument, it is characterized in that described X/Y is arranged on the base to stationary table, the opposite side of described base fixedly installs a column, and non-contact measurement head and contact type measurement head movable set are on described column.
6. bullet according to claim 5 or tool mark measuring instrument is characterized in that described contact type measurement head movable set in the lower end of column, and non-contact measurement head movable set is in the upper end of column.
7. bullet according to claim 3 or tool mark measuring instrument, it is characterized in that described X/Y fixedly installs rotation and the clamping device that is used for fixing bullet or instrument on worktable, rotation and clamping device connect AC servo motor and by its driving, AC servo motor connects computing machine by one drive circuit.
8. bullet according to claim 1 or tool mark measuring instrument, it is characterized in that described stationary table is arranged on the base, another of described base fixedly installs column, movable set contact type measurement head and non-contact measurement head on the column, described non-contacting measuring head is a measuring microscope, and the contact type measurement head is a phase grating interfere type PGI feeler; Described worktable be the X/Y that moves of two dimension to worktable, X/Y adopts AC servo machinery driving to worktable, computing machine connects by one drive circuit and drives the AC servo motor of X/Y to worktable; Described X/Y is provided with the rotation and the clamping device of fixing bullet or instrument on worktable, rotation and clamping device connect AC servo motor and by its driving, AC servo motor connects computing machine by another driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201948740U CN201133812Y (en) | 2007-10-29 | 2007-10-29 | Bullet or tools trace measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201948740U CN201133812Y (en) | 2007-10-29 | 2007-10-29 | Bullet or tools trace measuring apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN201133812Y true CN201133812Y (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201948740U Expired - Fee Related CN201133812Y (en) | 2007-10-29 | 2007-10-29 | Bullet or tools trace measuring apparatus |
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| CN (1) | CN201133812Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628675A (en) * | 2012-04-20 | 2012-08-08 | 安徽国盾三维高科技有限公司 | Holder for three-dimensional morphology trace comparison measuring instrument |
| CN102662230A (en) * | 2012-03-22 | 2012-09-12 | 芜湖市奥尔特光电科技有限公司 | Photographic instrument capable of realizing cylindrical trace unfolding |
| CN102869952A (en) * | 2010-04-08 | 2013-01-09 | 司法技术Wai公司 | Generation of a modified 3d image of an object comprising tool marks |
| CN104634247A (en) * | 2015-02-04 | 2015-05-20 | 苏州中太动力弹簧有限公司 | Quadratic element imager |
| CN104677313A (en) * | 2015-02-16 | 2015-06-03 | 太原理工大学 | Multi-angle intelligent measurement instrument of rock structure surface roughness coefficient and measurement method of rock structure surface roughness coefficient |
| CN105021135A (en) * | 2015-08-05 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Measuring method for seal groove of calipers |
| CN107421463A (en) * | 2017-06-09 | 2017-12-01 | 李刚 | A kind of automatic computer recognition system for bullet marks and its shoot mark comparison method |
| CN110555389A (en) * | 2019-08-09 | 2019-12-10 | 南京工业大学 | bullet line-bore trace identification method based on ridgelet transformation and rotation matching |
| CN111272319A (en) * | 2018-12-05 | 2020-06-12 | 上海东培企业有限公司 | Tension measuring device for contact measuring head |
| CN112158544A (en) * | 2020-09-09 | 2021-01-01 | 安徽机电职业技术学院 | Conveying device for bullet trace detection |
| US10888967B1 (en) * | 2019-07-03 | 2021-01-12 | Republic of Korea (National Forensic Service Director Ministry of Public Administration and Security) | Tool strip mark generator capable of measuring applied force and method of measuring applied force using the same |
| CN112893522A (en) * | 2021-01-20 | 2021-06-04 | 湖北重装重工装备有限公司 | High-precision automatic opening amount adjusting system and method for leveler |
-
2007
- 2007-10-29 CN CNU2007201948740U patent/CN201133812Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869952A (en) * | 2010-04-08 | 2013-01-09 | 司法技术Wai公司 | Generation of a modified 3d image of an object comprising tool marks |
| CN102869952B (en) * | 2010-04-08 | 2015-07-29 | 司法技术Wai公司 | Generate the 3D rendering comprising the amendment of the object of tool mark |
| CN102662230A (en) * | 2012-03-22 | 2012-09-12 | 芜湖市奥尔特光电科技有限公司 | Photographic instrument capable of realizing cylindrical trace unfolding |
| CN102628675A (en) * | 2012-04-20 | 2012-08-08 | 安徽国盾三维高科技有限公司 | Holder for three-dimensional morphology trace comparison measuring instrument |
| CN104634247B (en) * | 2015-02-04 | 2017-05-17 | 东莞市凯丰仪器科技有限公司 | Quadratic element imager |
| CN104634247A (en) * | 2015-02-04 | 2015-05-20 | 苏州中太动力弹簧有限公司 | Quadratic element imager |
| CN104677313A (en) * | 2015-02-16 | 2015-06-03 | 太原理工大学 | Multi-angle intelligent measurement instrument of rock structure surface roughness coefficient and measurement method of rock structure surface roughness coefficient |
| CN105021135A (en) * | 2015-08-05 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Measuring method for seal groove of calipers |
| CN107421463A (en) * | 2017-06-09 | 2017-12-01 | 李刚 | A kind of automatic computer recognition system for bullet marks and its shoot mark comparison method |
| CN111272319A (en) * | 2018-12-05 | 2020-06-12 | 上海东培企业有限公司 | Tension measuring device for contact measuring head |
| US10888967B1 (en) * | 2019-07-03 | 2021-01-12 | Republic of Korea (National Forensic Service Director Ministry of Public Administration and Security) | Tool strip mark generator capable of measuring applied force and method of measuring applied force using the same |
| CN110555389A (en) * | 2019-08-09 | 2019-12-10 | 南京工业大学 | bullet line-bore trace identification method based on ridgelet transformation and rotation matching |
| CN110555389B (en) * | 2019-08-09 | 2022-02-25 | 南京工业大学 | Bullet line-bore trace identification method based on ridgelet transformation and rotation matching |
| CN112158544A (en) * | 2020-09-09 | 2021-01-01 | 安徽机电职业技术学院 | Conveying device for bullet trace detection |
| CN112893522A (en) * | 2021-01-20 | 2021-06-04 | 湖北重装重工装备有限公司 | High-precision automatic opening amount adjusting system and method for leveler |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20091130 |