JP6963817B2 - Particle projection device with wear mark measurement function - Google Patents

Description

The present invention is one unit for forming wear marks on various materials (subjects) such as ceramics, metals, plastics, and rubber, and measuring the depth, surface shape, cross-sectional shape, roughness, etc. of the formed wear marks. It relates to a particle projection device with a wear mark measurement function that can be performed in.

The inventor of the present application first collides the jet particles (slurry), which is a mixture of abrasive grains and liquid, with the subject at high speed together with the compressed air, and causes the subject to erosion (wear) from the surface side. We have developed a projector and a subject measurement evaluation device that measures the depth of eroded wear marks and evaluates the wear strength and other mechanical properties of the subject (Patent Documents 1 to 4). This subject measurement evaluation device is called an MSE evaluation device (MSE is a registered trademark of the applicant) and is beginning to spread in the world.

Since the particle projector and the subject measurement / evaluation device are separate, the wear work by the particle projector and the wear mark measurement work by the subject measurement / evaluation device must be performed separately. In this case, since the subject must be reset to the particle projector at the time of wear and to the subject measurement / evaluation device at the time of measurement, many steps are required for the setting, which takes time and positioning at the time of setting. There was also concern about accuracy. In addition, since both the particle projector and the subject measurement / evaluation device are required, there is a problem that the equipment becomes large and a large space is required for installation.

Japanese Unexamined Patent Publication No. 2001-183279 Japanese Unexamined Patent Publication No. 2006-184188 Japanese Unexamined Patent Publication No. 2010-237073 Japanese Unexamined Patent Publication No. 2013-050378

An object of the present invention is to provide a particle projection device with a wear mark measurement function capable of projecting a slurry onto a subject and measuring wear marks by projecting the slurry with a single machine (particle projector). To do.

The particle projection device with a wear mark measurement function of the present invention (hereinafter, simply referred to as “particle projection device”) has a measurement unit on an injection gun capable of projecting a slurry onto a subject with compressed air to wear the subject. It is prepared. The measuring unit can measure the depth of wear marks, surface shape, cross-sectional shape, roughness, and the like. The measuring unit may be a mechanical type (contact type) having a contactor that contacts the wear marks, or an optical type (non-contact type) that does not contact the wear marks.

The mechanical measuring unit is equipped with a contact in the particle projector, and the contact is arranged on the slurry projection axis of the injection gun, and the contact is retracted from the nozzle of the injection gun when the slurry is projected onto the subject. At the time of measurement, it protrudes from the tip of the nozzle so that it can come into contact with the wear marks on the slurry projection shaft of the injection gun.

In the optical measurement unit, an optical transmission line is arranged on the slurry projection axis in the injection gun, and the measurement light is transmitted through the optical transmission line to irradiate the wear marks, and the reflected light from the wear marks is received and received. It is transmitted to the vessel. In this case, a laser light source, a white light source, or another light source can be used as the light source. In the case of a laser light source, an optical fiber is used as an optical transmission path, and the laser beam can be transmitted and received through the optical fiber. In the case of a white light source, an optical fiber or an optical waveguide rod is used as an optical transmission path, and white light can be transmitted and received by them. When the measurement light is laser light, a receiver capable of measuring the depth of the wear marks based on the light intensity of the reflected light from the wear marks, for example, a general-purpose light receiver can be used. When the measurement light is white light, a three-dimensional shape measuring machine capable of measuring the three-dimensional shape of wear marks, for example, a confocal microscope type or a scanning white interference microscope can be used as a receiver.

The depth of the wear mark measured by the mechanical method, the surface shape and the cross-sectional shape of the wear detected by the optical method can be calculated by the processing unit to evaluate the mechanical characteristics of the subject. The processing unit may be built in the measuring unit or externally attached to the measuring unit.

The particle projection device of the present invention may use an existing injection gun and incorporate a measuring unit into the injection gun, or may incorporate a measuring unit into a new injection gun.

The particle projection device of the present invention has the following effects.
(1) Since it is possible to measure the wear marks while wearing the subject (sample) with one unit, the wear is paused during the wear, the wear marks are measured, and the wear marks are repeated to overshoot. (Excessive wear) and inertial scraping can be reduced as much as possible. In this case, since measurement data during wear can be obtained at any time, the evaluation accuracy of the subject is also improved.
(2) Since it is possible to measure the wear of the subject with one unit, it is not necessary to reset the subject to different machines at the time of wear and at the time of measurement, and quick (high-speed) measurement is possible.
(3) Since the projection and measurement of the slurry can be performed coaxially (at the same position) with one unit, highly accurate measurement is possible.
(4) Since the wear and wear marks of the subject can be measured intermittently and repeatedly with one unit, the wear distribution from the surface side to the inside of the material can be accurately acquired, and the measurement accuracy can be improved and speeded up. Becomes possible.
(5) Since it is possible to measure the wear and wear marks of the subject with one unit, it is not necessary to prepare a particle projector and a measuring device separately, the size can be reduced compactly, and the installation space can be narrowed.
(6) Since the contacts of the measuring unit move and retract from the projection axis during slurry projection, the contacts do not interfere with the projection of the slurry. In addition, the projected slurry does not hit the contacts and the contacts are not damaged.
(7) When the measuring unit is an optical type and the optical fiber is a fixed type, it is not necessary to move (retract) the optical fiber in the nozzle, so that a moving mechanism becomes unnecessary and the configuration becomes simple.
(8) When a three-dimensional shape measuring machine is used for the measuring unit, not only the depth of the wear mark but also the surface shape and the cross-sectional shape of the wear mark can be measured (three-dimensional measurement).

It is an example of the particle projection apparatus of this invention, and is explanatory drawing when the contact is used for the measurement function, and the contact is retracted. Explanatory drawing when the contactor of the particle projection apparatus of FIG. 1 is brought into contact with a wear mark. The explanatory view at the time of particle projection by the particle projection apparatus of FIG. The explanatory view at the time of the wear mark depth measurement by the particle projection apparatus of FIG. Explanatory drawing which shows an example of test data. (A) is an explanatory view of a particle projection device in which the particle projection device of FIG. 1 is biaxially movable, and (b) is an explanatory view of a cross-sectional shape of a wear mark of (a). The explanatory view of the particle projection apparatus of this invention in the case where the optical fiber is arranged and fixed in the measuring part. The explanatory view of the particle projection apparatus of this invention in the case where the optical waveguide rod is arranged in the measuring part so that it can move up and down.

Various embodiments of the particle projection device of the present invention will be described with reference to the drawings.

(Embodiment 1)
The first embodiment of the particle projection apparatus of the present invention is shown in FIG. The particle projection device of FIG. 1 includes a particle projector (injection gun) 1 and a measurement unit 2.

There is a nozzle 3 at the bottom of the injection gun 1 of FIG. 1, and an injection hole (slurry injection hole) 4 penetrates through the center of the nozzle 3. There are a slurry supply port 5 and a compressed air supply port 6 on the outer periphery of the injection gun 1, and both supply ports 5 and 6 are open to the injection hole 4 of the nozzle 3 and communicate with each other, and are supplied from the slurry supply port 5. The slurry is injected at high pressure from the nozzle 3 together with the compressed air supplied from the compressed air supply port 6 to collide with the subject 7 such as a ceramic plate or a plastic plate to wear the subject 7 from the surface side. The wear marks 20 can be formed.

The slurry supply port 5 is provided with a slurry valve (not shown) for supplying or stopping the slurry, and the compressed air supply port 6 is provided with a compressed air valve (not shown) for supplying or stopping the compressed air. The opening and closing operations of these valves are automatically controlled by a control unit (controller) (not shown).

The measuring unit 2 is above the injection gun 1. The measuring unit 2 includes a driving unit 10 having a belt-type rotating body 9 and a motor M, a wire for a stylus 11, a measuring piece 12 fixed to the wire for a stylus 11, and a measuring instrument 13. The tip of the stylus wire 11 is a contactor 11a that comes into contact with the wear mark 20.

In the drive unit 10, a belt-type rotating body 9 is rotatably housed in the case 14, and the rotating body 9 moves up and down by the rotation of the motor M. A connecting tool 15 is attached to the rotating body 9, and the upper end of the stylus wire 11 and the measuring piece 12 are fixed to the connecting tool 15, and the connecting tool 15 moves up and down by moving the rotating body 9 up and down. Then, the stylus wire 11 and the measuring piece 12 are both moved up and down.

The stylus wire 11 is made of a non-stretchable material such as metal or ceramic, has a length that penetrates the nozzle 3 and reaches the connector 15, and as the connector 15 rises, the nozzle is as shown in FIG. It rises above the injection hole 4 of 3 and retracts above the injection hole 4, and as the connector 15 descends, it protrudes downward from the outlet 4a of the injection hole 4 and comes into contact with the wear mark 20 as shown in FIG. It is done like this. The material of the stylus wire 11 may be a material other than metal or ceramic as long as it is rigid, and may be a material other than the wire as long as it is elongated and has a thickness capable of moving up and down in the injection hole 4 of the nozzle 3. good.

A length measuring instrument is used for the measuring instrument 13. When the tip (contactor) 11a of the stylus wire 11 protrudes below the nozzle 3 and comes into contact with the wear mark 20 of the subject 7, the descent length (contact position: depth of the wear mark). It is designed so that it can be measured.

The drive unit 10 of the particle projection device of FIG. 1 may be a drive mechanism such as an air linder, a hydraulic cylinder, or a pinion rack. In the case of these drive mechanisms, the stylus wire 11 is connected to the drive unit 10 so that the stylus wire 11 moves up and down with the vertical movement of the drive unit 10, and the elevating position of the stylus wire 11 is measured. The depth of the wear mark can be measured from the ascending / descending distance or the difference from the initial measurement.

(Embodiment 2)
The second embodiment of the particle projection device is shown in FIG. This particle projection device is basically the same as the particle projection device of FIG. 1, and the difference is that the set table 21 on which the subject 7 is set is moved in the lateral direction (X direction) and the front-back direction (Y direction). (Two-axis movement) It is fixed on a movable base 22 that can be moved, and the moving base 22 is moved laterally (moved in the X direction) and back and forth (moved in the Y direction) by a driving device, for example, a hydraulic or pneumatic cylinder 23. It is possible to move).

(Embodiment 3)
The third embodiment of the particle projection device is shown in FIG. This particle projection device is basically the same as the particle projection device of FIG. 1, the difference is that the wire 11 for the stylus in FIG. 1 is replaced with the optical fiber 31, and the optical fiber 31 is used as the injection hole 4 of the nozzle 3 of the injection gun 1. The measurement unit 2 is made optical by arranging and fixing it on the axis of. In the particle projection device of FIG. 7, the slurry can be ejected onto the subject 7 on the slurry projection axis to form wear marks 20, and the laser light emitted from the laser light source and the laser light source 32a of the calculation unit 32 is emitted and received by the light receiving / receiving unit. It is transmitted from the light source 33a of 33 through the optical fiber 31, and the laser beam is applied to the wear mark 20 from the end of the optical fiber 31. The reflected light from the wear marks 20 is received by the light receiver 33b of the light receiving / receiving unit 33 and sent to the laser light source and the calculation processing unit 32b of the calculation unit 32. The reflected light data received by the light receiver 33b is sent to the laser light source and the arithmetic processing unit 32b of the arithmetic unit 32 for arithmetic processing. In this case, if the light receiver 33b of the light emitting / receiving unit 33 is capable of detecting the reflected light intensity, the depth of the wear mark 20 can be measured based on the reflected light intensity, and the three-dimensional measuring instrument can be used. Can be used to measure the shape of wear marks (surface shape, cross-sectional shape). The laser light source 32a and the arithmetic processing unit 32b may be separate bodies instead of the unit. The floodlight 33a and the receiver 33b may also be separate bodies instead of the unit.

(Embodiment 4)
A fourth embodiment of the particle projection device is shown in FIG. In this embodiment, although the measurement unit 2 is an optical type, a white light source 34a is used as the light source and the light source of the arithmetic unit 34, an optical waveguide rod 35 is used for the optical transmission path, and the optical waveguide rod 35 is used as a slurry of the nozzle 3. It is arranged on the projection axis, and the optical waveguide rod 35 can be raised and lowered by the drive unit 10. Further, by connecting the light emitting / receiving unit 36 above the optical waveguide rod 35, white light from the white light source 34a can be projected from the floodlight 36a of the light emitting / receiving unit 36 onto the wear mark 20 through the optical waveguide rod 35. The reflected light from 20 is received by the light receiver 36b of the light emitting / receiving unit 36 through the optical waveguide rod 35. The reflected light data of the receiver 36b is sent to the light source and the arithmetic processing unit 34b of the arithmetic unit 34 for arithmetic processing. In this case, by using a three-dimensional measuring instrument for the receiver 36b, it is possible to measure the shape (planar shape, cross-sectional shape) of the wear mark 20. The white light source 34a and the arithmetic processing unit 34b may be separate bodies instead of the unit. The floodlight 36a and the receiver 36b may also be separate bodies instead of the unit.

The drive unit 10 of FIG. 8 is the same as the drive unit 10 of FIG. 1, and includes a belt-type rotating body 9 and a motor M. A connecting tool 37 is connected to the rotating body 9, a measuring piece 38 is connected to the connecting tool 37, and an optical waveguide rod 35 is connected and fixed to the connecting tool 37. A fixed position stopper 39 is connected to the measuring piece 38.

In FIG. 8, when the rotating body 9 rotates in the direction of arrow A (upward), the connector 37 rises, and along with the rise, the optical waveguide rod 35 rises above the injection hole 4 of the nozzle 3 in FIG. Retract from the injection hole 4. In this case, the rise is detected by the fixed position stopper 39, and the optical waveguide rod 35 automatically stops at a position that does not interfere with the slurry injection from the injection hole 4. When the rotating body 9 rotates in the direction of arrow B (downward) in FIG. 8 and the connector 37 descends, the optical waveguide rod 35 projects downward from the exit end (lower end) of the injection hole 4 as shown in FIG. When the lower end of the optical waveguide rod 35 reaches just above the wear mark 20, the position is detected by the fixed position stopper 39, and the rod is automatically stopped so as not to descend any further.

For the throwing / receiving unit 36 of FIG. 8, a device (3D measuring device) capable of three-dimensional shape measurement can be used to enable three-dimensional measurement of the surface shape and cross-sectional shape of the wear mark 20. A confocal microscope, a scanning white interference microscope, and other equipment capable of three-dimensional measurement can be used as the 3D measuring device. In this case, the configuration of the optical system can be selected according to the 3D measuring instrument to be used.

[Explanation of operation of the particle projection device of the first embodiment (FIG. 1)]
To erosion the subject 7 using the particle projection device of FIG. 1 and measure the wear mark 20 (depth) obtained thereby, the following can be performed.

As shown in FIG. 2, the subject 7 is set in the particle projection device, and the distance between the surface of the subject 7 and the outlet 4a of the injection hole 4 is fixed. In this fixed state, the rotating body 9 is rotated by the rotation of the motor M to raise the stylus wire 11 above the injection hole 4 of the nozzle 3 and retract it from the injection hole 4.

In the retracted state, the slurry is supplied from the slurry supply port 5, compressed (high pressure) air is supplied from the compressed air supply port 6, and the slurry and air are merged in the injection hole 4 of the nozzle 3, mixed and injected. It is injected from the outlet 4a of the hole 4 (FIG. 3). This injection wears the subject 7 from the surface side. The shape, size, type, mixing ratio with liquid, etc. of the abrasive grains of the slurry can be the same as those of the slurry used for this type of wear.

The injection may be continuous injection or intermittent injection, but FIG. 3 shows an example of intermittent injection. In the case of intermittent injection, the injection conditions such as the amount of one injection and the injection intensity are kept constant, and the projection is repeated to obtain wear marks. The depth of the wear marks in one projection can be set according to the purpose of evaluation, the material of the subject 7, the thickness, and the like, and is, for example, several nanometers to several micrometers.

When measuring the depth of the wear marks, the supply of the slurry from the slurry supply port 5 is stopped, only the compressed air is supplied from the compressed air supply port 6, and the slurry in the injection hole 4 of the nozzle 3 is removed. ..

As described above, in the state of supplying compressed air or after stopping the supply of compressed air, the motor M is rotated in the reverse direction to rotate the rotating body 9 downward, and the stylus wire 11 is nozzleed. The inside of the injection hole 4 of 3 is lowered so as to protrude downward from the outlet of the injection hole 4 and come into contact with the wear mark (center portion) of the subject 7 (FIG. 4).

The depth of the wear mark is measured by the measuring instrument 13 based on the descending position of the contactor 11a in the contact state (measurement 1 in FIG. 4). Specifically, the measuring instrument 13 measures the position of the measuring top 12 that descends together with the stylus wire 11 and comes into contact with the measuring instrument 13. The position of the measuring piece 12 measured at this time (the position of the wear mark of the subject) and the initial depth before the start of wear or the position of the measuring piece 12 measured by the measuring instrument 13 before the wear (subject). From the difference from the position of the wear mark), the descent length of the measuring piece 12, that is, the descent length of the stylus wire 11, is measured, and the depth of the wear mark is measured.

In the measurement, the intermittent injection of the slurry is restarted to wear the subject, and each time the injection is paused, the slurry in the injection hole 4 is removed, the wire 11 for the stylus is lowered, and the contactor 11a is brought into contact with the contact. The wear marks are brought into contact with the wear marks (FIG. 4), and the wear marks are repeatedly measured by the measuring instrument 13 to obtain measurement data. The measurement of the wear and the wear mark is repeated to obtain the depth of the wear mark each time (FIG. 5). In this case, the depth of the wear mark of the second wear is obtained from the difference between the wear mark depth of the measurement 1 and the wear mark depth of the measurement 2. By repeating this operation at a distance (same positional relationship) between the surface of the subject 7 and the outlet 4a of the injection hole 4, the relationship between the cumulative projected amount of slurry and the wear depth can be obtained.

When the depth of the wear mark is measured as described above, the mechanical strength of the subject is evaluated based on the measured value (FIG. 5). At this time, the mechanical strength distribution in the thickness direction of the subject can be evaluated.

FIG. 5 shows an example of test data that can be obtained by the repeated measurement. When the material (subject) is a polycarbonate resin, the measurement of the material as it is is shown by the subject B, and the measurement of the material that has been subjected to surface deterioration treatment by irradiating ultraviolet rays from the surface is shown by the subject A. Since the amount of projected particles and the wear depth of subject B increase in a substantially linear relationship, it can be seen that a certain strength is distributed from the surface to the inside. In subject A, the relationship between the amount of projected particles and the wear depth is shown by a curve that accelerates wear from the surface, and from a certain depth, it can be seen that wear is progressing at the same inclination as that of subject B. From such a comparison, in the case of this material (polycarbonate resin), it can be determined by application that the surface portion is quickly worn, that is, weakened (deteriorated) by ultraviolet irradiation.

[Explanation of operation of the particle projection device of the second embodiment (FIG. 6)]
In the particle projection device of FIG. 6, the wear marks 20 are formed in the same manner as in the case of FIG. After that, the stylus wire 11 is lowered and brought into contact with the wear mark 20, and the depth of the wear mark 20 is measured. In this case, the stylus wire 11 is slightly raised to float from the subject 7, and in that state, the set table 21 is moved in the lateral direction (X direction) and the front-rear direction (Y direction) to stop at a predetermined position. When stopped, the stylus wire 11 is lowered and brought into contact with the wear mark 20, and the depth of the wear mark 20 at the contact point is measured. By repeating this, the depth of substantially the entire area of the wear mark 20 can be measured, and the cross-sectional shape or the 3D shape of the wear mark 20 can be measured.

[Explanation of operation of the particle projection device of the third embodiment (FIG. 7)]
The wear marks 20 are formed by the particle projection device of FIG. 7 in the same manner as in the case of the particle projection device of FIG.

To measure the wear marks 20 with the particle projection device of FIG. 7, the procedure is as follows.
The laser light from the laser light source and the laser light source 32a of the arithmetic unit 32 is incident on the optical fiber 31, and the laser light emitted from the exit end of the optical fiber 31 is irradiated from the floodlight 33a of the light receiving / receiving unit 33 to the wear mark 20 through the optical fiber 31. do. The reflected light from the wear mark 20 is received by the light receiver (3D measuring device) 33b of the light receiving / receiving unit 33, and the reflected light is calculated by the calculation processing unit 32b of the calculation unit 32 to process the cross-sectional shape of the wear mark 20. , Or measure the 3D shape.

[Explanation of operation of the particle projection device of the fourth embodiment (FIG. 8)]
In order to form the wear marks 20 with the particle projection device of FIG. 8, the optical waveguide rod 35 is raised and retracted from the injection hole 4. In the retracted state, the slurry is supplied from the slurry supply port 5 of the particle projection device, compressed (high pressure) air is supplied from the compressed air supply port 6, and the slurry and air are supplied in the same manner as in the case of the particle projection device of FIG. Are merged in the injection hole 4 of the nozzle 3, mixed, and injected from the outlet 4a of the injection hole 4. This injection wears the subject 7 from the surface side. The shape, size, type, mixing ratio with liquid, etc. of the abrasive grains of the slurry can be the same as those of the slurry used for this type of wear.

The injection may be either continuous injection or intermittent injection, but in the case of intermittent injection, the injection conditions such as the amount of one injection and the injection intensity are kept constant, and the projection is repeated to obtain wear marks. The depth of the wear marks in one projection can be set according to the purpose of evaluation, the material of the subject 7, the thickness, and the like. The depth of the wear marks in this case is also about several nanometers to several micrometers.

For intermittent injection. The depth of the wear mark 20 is measured each time the erosion is performed. Also in this case, the supply of the slurry from the slurry supply port 5 is stopped, only the compressed air is supplied from the compressed air supply port 6, and the slurry in the injection hole 4 of the nozzle 3 is removed.

In order to measure the cross-sectional shape of the wear marks 20 formed as described above, the optical waveguide rod 35 is moved in the state where the compressed air is being supplied as described above, or after the supply of the compressed air is also stopped. Lower and stop in place. In this stopped state, white light is incident on the optical waveguide rod 35 from the white light source 34a, and the white light emitted from the exit end of the optical waveguide rod 35 is irradiated toward the wear marks 20. The reflected light from the wear mark 20 is received by the 3D shape measuring device, and the reflected light is calculated and processed by the arithmetic processing unit to measure the 3D shape of the wear mark 20.

The mechanical strength of the subject is evaluated based on the measured values. By repeating the erosion at a distance (same positional relationship) between the surface of the subject 7 and the outlet 4a of the injection hole 4, the mechanical strength distribution in the thickness direction of the subject can be evaluated. It is also possible to obtain the relationship between the cumulative slurry projection amount and the wear depth.

[Subject evaluation and utilization]
The data of the wear marks obtained by using the particle projection device of the present invention is arithmetically processed by the arithmetic processing unit and used for evaluation of the subject (material), setting of processing conditions of the material used as the subject, and the like. be able to. In this case, the shape of the wear mark 20 can be graphicized, and the change in the wear mark can be graphed and quantified and displayed on the monitor screen.

The embodiment is merely an example of the present invention. In the present invention, other materials, devices, and the like can be used as long as the problem can be solved, and other configurations, sizes, and the like can be used. Further, the measurement procedure of the wear marks 20 and the like can be arbitrarily set.

1 Particle projector (injection gun)
2 Measuring unit 3 Nozzle 4 Injection hole (slurry injection hole)
4a (injection hole) outlet 5 Slurry supply port 6 Compressed air supply port 7 Subject 9 Rotating body 10 Drive unit 11 Wire for stylus 11a Tip of wire for stylus (contactor)
12 Measuring piece 13 Measuring instrument 14 Case 15 Connector 20 Wear mark 21 Set stand 22 Moving stand 23 Cylinder 31 Optical fiber 32 Laser light source and arithmetic unit 32a Laser light source 32b Arithmetic processing unit 33 Throw / receive unit 33a Floodlight 33b Receiver 34 Light source And arithmetic unit 34a white light source 34b arithmetic processing unit 35 optical waveguide rod 36 throwing / receiving unit 36a floodlight 36b receiver 37 connector 38 measuring piece 39 fixed position stopper M motor

Claims (3)

In a particle projection device equipped with an injection gun that projects the slurry together with compressed air onto a subject at high speed to wear the subject.
The particle projection device, e Bei at least the depth of the wear scar and / or measurable measuring section shape,
The measuring unit can measure the wear marks coaxially with the slurry projection shaft of the injection gun.
A particle projection device with a wear mark measurement function. In the particle projection device with a wear mark measurement function according to claim 1,
The measuring unit is equipped with a contact that can contact the wear mark and a drive unit that reciprocates the contact so that it can contact and separate from the wear mark.
The contacts are placed on the particle projection axis of the injection gun and
The drive unit retracts the contact from the slurry projection shaft of the nozzle when projecting slurry from the nozzle of the injection gun, and projects the contact out from the injection port of the injection gun when at least measuring the depth of wear marks of the subject. Can be brought into contact with wear marks,
A particle projection device with a wear mark measurement function. In the particle projection device with a wear mark measuring function according to claim 1.
A light source, an optical transmission line that transmits the measurement light from the light source and irradiates the wear marks in a non-contact manner, and a receiver or / or a receiver that receives the reflected light that is emitted from the optical transmission line and reflected from the wear marks. And equipped with 3D measuring instrument
The optical transmission line is arranged on the slurry projection axis of the nozzle of the injection gun, and can be fixed or moved up and down at the arrangement location.
A particle projection device with a wear mark measurement function.

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