CN211651545U - Online detection ultrasonic thickness measuring device - Google Patents
Online detection ultrasonic thickness measuring device Download PDFInfo
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- CN211651545U CN211651545U CN202020219630.9U CN202020219630U CN211651545U CN 211651545 U CN211651545 U CN 211651545U CN 202020219630 U CN202020219630 U CN 202020219630U CN 211651545 U CN211651545 U CN 211651545U
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Abstract
The utility model discloses an online detection ultrasonic thickness measuring device, which comprises a hollow installation body, wherein a hollow probe shell is slidably installed inside the cavity of the installation body, an annular liquid storage component is installed at one end of the probe shell, which is far away from the installation body, and an annular nozzle communicated with the inner cavity of the liquid storage component is slidably installed at one end of the liquid storage component, which is far away from the probe shell; a connecting rod is coaxially arranged in the liquid storage assembly, one end of the connecting rod extends to the interior of the annular nozzle, and an ultrasonic probe is universally and movably arranged; the utility model discloses have to the thickness measurement that carries out couplant spraying and thickness measurement, compatible inclined plane in step to the thickness measuring plane, realize triggering and safety protection, realizing thickness measuring device and lathe synchronous motion's beneficial effect to ultrasonic transducer's accuracy.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic thickness measuring device, concretely relates to on-line measuring ultrasonic thickness measuring device.
Background
In the numerical control machining process of the aviation structural part, due to the influences of factors such as machine tool precision, machining reference accuracy, cutter abrasion, cutting vibration, workpiece cutter back-off and the like, the situation that actual structure thickness is inconsistent with theoretical thickness due to over-cutting or under-cutting and the like can occur during part structure cutting, and part machining faults can occur when the actual thickness exceeds a theoretical thickness tolerance band. For aviation structural parts, particularly large thin-wall parts, on one hand, the thickness measurement is to detect the size in the machining process and compensate based on thickness detection data so as to ensure that the cutting thickness is qualified; and on the other hand, the detection is carried out after the machining is finished, and the detection is used as a check basis for whether the part is machined to be qualified. At present, the handheld thickness gauge is used for detection, but the handheld thickness gauge is strong in uncertainty of detection and measurement positions, large in labor capacity of workers during measurement and low in efficiency, and long in detection time in the machining process, a large amount of machine occupation time of a numerical control machine tool is occupied, so that resource waste is caused.
Patent document CN204329917U discloses an ultrasonic thickness measuring probe, which includes a probe cylinder, a probe nozzle, a transducer, a pressure rod, a piston, a pressure key and an elastic member, wherein the probe nozzle is connected to the front end of the probe cylinder, the probe nozzle is provided with a rotary through hole and a liquid outlet hole on the wall thereof, the transducer is fixedly connected to the front end of the pressure rod and is adapted to be slidably connected to the rotary through hole, the piston and the pressure key are sequentially fixedly connected to the rear end of the pressure rod, a storage cavity capable of containing a coupling agent is formed between the rear end surface of the probe nozzle and the piston, and the elastic member is sleeved on the pressure rod and two ends of the elastic member abut against the piston and the rear end surface of the probe nozzle; the pressing key is pressed to drive the pressing rod and the transducer to move towards the front end of the probe nozzle, and meanwhile, the piston extrudes the couplant in the storage cavity to be sprayed on the front end face of the transducer through the liquid outlet hole, so that the couplant spraying step and the thickness measuring step are synchronously carried out, but the device needs to be triggered in a mode of manually pressing the pressing key, and is not suitable for the on-machine thickness measurement in the numerical control machining process.
Patent document CN203501992U discloses an on-line ultrasonic thickness measuring device, which includes two parts, namely an ultrasonic thickness measuring probe and an ultrasonic thickness measurement controller, wherein the ultrasonic thickness measuring probe has a mounting rod structure, and can be mounted on a spindle of a numerical control machine tool, and the displacement sensor is triggered to collect thickness data after the end face of the ultrasonic probe contacts a workpiece.
Consequently to the couplant that present ultrasonic thickness measurement probe used to exist when the machine detects the mode spray with ultrasonic probe trigger measure the defect asynchronous and lack inclined plane thickness measurement function, the utility model provides an on-line measuring ultrasonic thickness measuring device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an on-line measuring ultrasonic thickness measuring device realizes carrying out the couplant in step and sprays and ultrasonic transducer triggers measurement and compatible inclined plane thickness measurement's function.
The utility model discloses a following technical scheme realizes:
an ultrasonic thickness measuring device for online detection comprises a hollow mounting body, wherein a hollow probe shell is slidably mounted in a cavity of the mounting body, an annular liquid storage assembly is mounted at one end, far away from the mounting body, of the probe shell, and an annular nozzle communicated with an inner cavity of the liquid storage assembly is slidably mounted at one end, far away from the probe shell, of the liquid storage assembly; the inside coaxial arrangement of stock solution subassembly has the connecting rod, the one end of connecting rod extends to the inside of annular nozzle and universal activity is provided with ultrasonic transducer.
In order to better realize the utility model, furthermore, two sides of the installation body are provided with sliding grooves, and two sides of the probe shell are provided with limit screws which extend into the sliding grooves and slide along the sliding grooves; one end of the sliding groove, which is far away from the probe shell, is provided with a displacement sensor, and the measuring end of the displacement sensor is connected with the side face of the limiting screw.
In order to better realize the utility model, furthermore, a spring is coaxially arranged between the hollow cavity inside of the installation body and the hollow cavity inside of the probe shell.
In order to better realize the utility model, the liquid storage component comprises a piston body and a coupler box, the coupler box is coaxially arranged at one end of the probe shell far away from the installation body, the piston body is coaxially arranged at one end of the coupler box far away from the probe shell, the annular nozzle is coaxially and slidably arranged at one end of the piston body far away from the coupler box, and one end of a connecting rod is coaxially arranged in a center hole of the piston body; and annular cavities which are communicated with each other are arranged in the annular nozzle, the piston body and the coupling agent box.
In order to better realize the utility model discloses, furtherly, the both sides of piston body are provided with the guide way along vertical direction, the both sides of cyclic annular nozzle correspond the guide way and are provided with the abrupt piece, the abrupt piece slides and sets up inside the guide way.
In order to better realize the utility model, furthermore, the piston body is of a cylinder structure, and an annular cavity is arranged inside the piston body; the top of the annular cavity of the piston body is communicated with the annular cavity of the coupling agent box through a plurality of one-way valves arranged along the circumferential direction; the bottom opening of the annular cavity is provided, and the annular nozzle is coaxially and slidably arranged in the bottom opening of the annular cavity.
In order to better realize the utility model discloses, furtherly, the ring nozzle is tube structure, the inside of ring nozzle is provided with annular cavity, the top of the annular cavity of ring nozzle is through a plurality of income liquid holes that set up along circumference and the annular cavity intercommunication of piston body, the bottom of the annular cavity of ring nozzle is provided with a plurality of jets along circumference.
In order to realize the utility model discloses, furtherly, be provided with the filler and the observation window that have the closing cap on the bottom lateral surface of the annular cavity of coupling box.
In order to better realize the utility model discloses, furtherly, be connected through the universal rotation of rubber pad between the one end of ultrasonic transducer and connecting rod, the one end coaxial of being close to the probe shell of connecting rod is provided with the protective sheath that extends to the cavity intracavity portion of probe shell.
In order to better realize the utility model discloses, furtherly, the protective sheath is hollow structure, be provided with the wire of being connected with ultrasonic transducer in the cavity of protective sheath, the wire upwards extends to the probe shell and the installation body in the cavity intracavity portion.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
(1) the utility model discloses a slide at the one end of installation body and set up the probe shell, the one end that is close to the thick plane that awaits measuring at the probe shell sets up the stock solution subassembly and is used for storing the couplant, slide at the one end that the stock solution subassembly is close to the thick plane that awaits measuring simultaneously and set up annular nozzle, set up the connecting rod in the inside of stock solution subassembly simultaneously, the end universal rotation installation ultrasonic probe that is close to the thick plane that awaits measuring at the connecting rod, through pressing the installation body towards the thick plane that awaits measuring, make annular nozzle pressurized and to the thick plane spraying couplant that awaits measuring, annular nozzle returns simultaneously and contracts and makes ultrasonic probe expose and carry the box with the thick plane that awaits measuring, realize the thickness measurement to the plane, ultrasonic probe that universal rotation connects can; the utility model has the advantages that the utility model can synchronously carry out couplant spraying and thickness measuring on the thickness measuring plane and can be compatible with the thickness measurement of the inclined plane;
(2) the utility model discloses a set up the spout in the both sides of the installation body, correspond at the both sides of probe shell and set up stop screw, stop screw slides along the spout, when ultrasonic transducer pressurized, and then drive stock solution subassembly and probe shell and slide towards the direction that is close to the installation body, stop screw and then promote displacement sensor's measuring end, measure through displacement sensor and draw the relative displacement of probe shell and installation body, and then set up ultrasonic transducer's trigger threshold value and mistake proofing threshold value through relative displacement, realize accurate trigger and safety protection to ultrasonic transducer;
(3) the utility model arranges the spring between the sleeve head shell and the mounting body, the probe shell is positioned at the bottom of the mounting body through the spring, the probe shell is limited, when the probe shell is pressed, the spring is compressed to move the probe shell, after the external force is removed, the spring is extended to reset the probe shell, and the next thickness measurement is convenient;
(4) the utility model coaxially arranges a hollow protective sleeve at one end of the connecting rod close to the mounting body, and the inner part of the cavity of the protective sleeve is used for passing a wire, thereby effectively protecting the wire connected with the ultrasonic probe;
(5) the utility model discloses a keep away from the planar one end of thickness measurement at the installation body and set up the installation handle, realize the thickness measurement device in the connection of lathe main shaft through the installation handle, make the thickness measurement device can carry out the thickness measurement with lathe main shaft synchronous motion, replaced artifical handheld thickness measurement device and carried out the thickness measurement.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the assembly of the present invention;
fig. 3 is a schematic external structural view of the present invention;
FIG. 4 is an assembly view of the internal structure of the present invention;
FIG. 5 is a schematic view of the assembly of the reservoir assembly;
FIG. 6 is a schematic view of the structure of the coupling agent box;
FIG. 7 is a schematic view of the piston body;
FIG. 8 is a schematic view of the installation of the check valve on the piston body;
fig. 9 is a schematic structural view of the annular nozzle.
Wherein: 1-an annular nozzle; 2-a piston body; 3-a coupling agent box; 4-probe shell; 5-an installation body; 7-a limit screw; 9-a spring; 10-a protective sheath; 11-a connecting rod; 12-rubber pad; 13-an ultrasonic probe; 14-a wire; 15-a displacement sensor; 16-a viewing window; 19-a liquid inlet; 20-an ejection port; 23-a filling port; 31-a one-way valve; 01-a chute; 02-a guide groove; 001-reservoir assembly.
Detailed Description
Example 1:
as shown in fig. 1 to 4, the ultrasonic thickness measuring device for online detection in the present embodiment includes a hollow mounting body 5, a hollow probe casing 4 is slidably mounted inside a cavity of the mounting body 5, an annular liquid storage component 001 is mounted at one end of the probe casing 4, which is far from the mounting body 5, and an annular nozzle 1 communicated with an inner cavity of the liquid storage component 001 is slidably mounted at one end of the liquid storage component 001, which is far from the probe casing 4; the inside coaxial arrangement of stock solution subassembly 001 has connecting rod 11, the one end of connecting rod 11 extends to the inside of cyclic annular nozzle 1 and universal activity is provided with ultrasonic transducer 13.
The mounting body 5 is of a hollow cylinder structure, a mounting handle is coaxially arranged at one end of the mounting body 5, the mounting body 5 is fixed on the general tool handle through the mounting handle, and then the general tool handle is connected with the machine tool spindle, so that the mounting of the mounting body 5 on the machine tool spindle is realized. The probe shell 4 is coaxially and slidably mounted on the inner side of one end, far away from the mounting handle, of the inner cavity of the mounting body 5, the probe shell 4 is also of a hollow cylinder structure, and the hollow cavity of the probe shell 4 is communicated with the hollow cavity of the mounting body 5. The inboard of the one end of the installation body 5 of keeping away from of probe shell 4 is provided with the internal thread, and the outside that stock solution subassembly 001 is close to the one end of probe shell 4 is provided with the internal thread matching external screw thread with the probe shell 4 end, realizes the spiral shell dress of stock solution subassembly 001 at the end of probe shell 4. The liquid storage component 001 is provided with a central through hole, an annular cavity is formed in the liquid storage component 001 and used for storing a couplant, one end, far away from the probe shell 4, of the liquid storage component 001 is a conical liquid outlet end, an annular nozzle 1 is coaxially installed on the liquid outlet end of the liquid storage component 001 in a sliding mode, and the top of the annular nozzle 1 is coaxially inserted into the annular cavity of the liquid storage component 001 in a plug-in mode. The annular nozzle 1 is of a cylindrical structure, an annular cavity is also formed in the annular nozzle 1, and the annular cavity in the annular nozzle 1 is communicated with the annular cavity in the liquid storage component 001. The inboard internal thread that is provided with of the centre bore of stock solution subassembly 001, the inboard internal thread that corresponds the centre bore of stock solution subassembly 001 in the outside of the one end of connecting rod 11 is provided with the external screw thread, realizes the spiro union of the one end of connecting rod 11 in the centre bore of stock solution subassembly 001.
When thickness measurement is carried out, the end face of the annular nozzle 1 is attached to the surface to be measured, then the couplant in the annular cavity of the liquid storage assembly 001 enters the annular cavity of the annular nozzle 1, and the couplant is sprayed to the surface to be measured through the annular nozzle 1 to finish the pre-spraying of the couplant. Then continue to press the installation body 5 towards the thick plane that awaits measuring, annular nozzle 1 pressurized and slip this moment and interact towards stock solution subassembly 001, and at this moment, ultrasonic probe 13 of connecting rod 11 end exposes and with the thick plane contact that awaits measuring, carries out online thickness measurement. Because the ultrasonic probe 13 is connected with the end of the connecting rod 11 in a universal rotation manner, even if the plane to be measured is an inclined plane, under the action of external pressure, the ultrasonic probe 13 can correspondingly rotate along with the inclination angle of the plane to be measured, so that the ultrasonic probe 13 is attached to the inclined plane, and the thickness measurement of the inclined plane is realized.
Example 2:
the embodiment is further optimized on the basis of embodiment 1, as shown in fig. 4, sliding grooves 01 are formed in two sides of the mounting body 5, and limiting screws 7 extending into the sliding grooves 01 and sliding along the sliding grooves 01 are formed in two sides of the probe shell 4; one end of the sliding groove 01, which is far away from the probe shell 4, is provided with a displacement sensor 15, and the measuring end of the displacement sensor 15 is connected with the side surface of the limit screw 7.
The limiting screws 7 are screwed on two sides of the probe shell 4, and one end, far away from the probe shell 4, of the limiting screws 7 extends to the inside of the sliding groove 01. Under normal state, under the dead weight effect of probe shell 4, stop screw 7 of probe shell 4 both sides is located the bottom of spout 01, adopts clearance fit between the surface of revolution of stop screw 7 and the side of spout 01, and when the bottom pressurized of probe shell 4, stop screw 7 upwards slides along spout 01 promptly, and then makes probe shell 4 upwards get into in the well cavity of installation body 5. The top of stop screw 7's the surface of revolution is provided with the bottom surface and is the recess of locating plane, make the locating plane level place up when stop screw 7 installs, displacement sensor 15's main part links firmly on installation body 5, displacement sensor 15's measuring unit end and locating plane cooperation, when probe shell 4 and the part of being connected receive the exogenic action and then and the installation body 5 between the relative position relation change, stop screw 7 is along 01 upward movement of spout, displacement sensor 15's measuring unit is flexible along stop screw's removal, realize the measurement of probe shell 4 and its adapting unit and installation body 5 relative displacement change. And then the displacement sensor 15 sends the measured displacement value to a control system, a threshold value is set through the control system, and triggering of data acquisition of the ultrasonic probe 13 at the bottom of the probe shell 4 and error-proofing treatment when the movement of the ultrasonic thickness measuring device and the set threshold value are abnormal are controlled through the threshold value.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
the present embodiment is further optimized based on the above embodiment 1 or 2, and as shown in fig. 1 and fig. 4, a spring 9 is coaxially disposed between the hollow cavity inside of the mounting body 5 and the hollow cavity inside of the probe housing 4.
The top inboard of installation body 5 is provided with the installation body flange, and the bottom inboard of probe shell 4 is provided with the probe flange, is provided with the spring 9 coaxial with installation body 5 between the bottom surface of installation body flange and the top surface of probe flange, and spring 9 is in compression state at ordinary times, and under the spring action of spring 9, spring 9 is strong and is pushed up tightly down by probe shell 4, makes the stop screw 7 of probe shell 4 both sides be in the bottom of spout 01, realizes the spacing to probe shell 4. When the bottom of the probe housing 4 is pressed upward, the spring 9 is compressed and the probe housing 4 slides upward along the slide groove 01. After the external force is removed, the spring 9 extends to drive the probe shell 4 to reset downwards along the sliding groove 01.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
this embodiment is further optimized on the basis of any of the above embodiments 1-3, as shown in fig. 1-3, the liquid storage assembly 001 includes a piston body 2 and a coupler cartridge 3, the coupler cartridge 3 is coaxially disposed at one end of the probe housing 4 far from the mounting body 5, the piston body 2 is coaxially disposed at one end of the coupler cartridge 3 far from the probe housing 4, the annular nozzle 1 is coaxially slidably disposed at one end of the piston body 2 far from the coupler cartridge 3, and one end of a connecting rod 11 is coaxially mounted inside a central hole of the piston body 2; the annular nozzle 1, the piston body 2 and the coupling agent box 3 are all internally provided with annular cavities which are communicated with each other.
The coupling agent box 3 is of a cylinder structure with a through hole in the center, an annular cavity is formed in the coupling agent box 3 and used for storing coupling agent, an external thread matched with an internal thread at one end of the probe shell 4 is arranged on the outer side of one end of the coupling agent box 3, and the coupling agent box 3 is installed at one end of the probe shell 4 through matching between the external thread and the internal thread. An annular opening is formed in one end, away from the probe shell 4, of the annular cavity in the coupler box 3, internal threads are formed in the inner side of the annular opening, external threads are formed in one end of the piston body 2, corresponding to the internal threads in the annular opening of the coupler box 3, and the piston body 2 is installed at the annular opening of the coupler box 3 through matching between the external threads and the internal threads. An annular cavity is arranged inside the piston body 2, one end of the annular cavity inside the piston body 2, which is close to the coupler box 3, is provided with an opening corresponding to the annular cavity inside the coupler box 3, and the coupling agent inside the coupler box 3 enters the annular cavity inside the piston body 2 through the opening. The annular cavity of piston body 2 is close to the one end on the thick plane that awaits measuring and sets up cyclic annular opening, the one end of annular nozzle 1 slides and sets up inside the annular opening of the one end of piston body 2, the inside of annular nozzle 1 is provided with annular cavity, and annular nozzle 1 is close to the annular opening that the one end of piston body 2 corresponds piston body 2 and is provided with the feed liquor hole, inside couplant through the feed liquor hole entering annular nozzle 1's annular cavity of piston body 2, annular nozzle 1's annular cavity is close to the one end on the thick plane that awaits measuring and is provided with a plurality of hydrojet holes along circumference, the inside couplant of annular cavity of annular nozzle 1 sprays on the thick plane that awaits measuring through.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
this embodiment is further optimized on the basis of any one of the above embodiments 1-4, as shown in fig. 7, the two sides of the piston body 2 are provided with guide grooves 02 along the vertical direction, and the two sides of the annular nozzle 1 are provided with protrusions corresponding to the guide grooves 02, and the protrusions are slidably arranged inside the guide grooves 02.
The both sides integration of cyclic annular nozzle 1 is provided with the lug, and the lug that the both sides of piston body 2 correspond cyclic annular nozzle 1 both sides is provided with vertical guide way 02, adopts clearance fit between the surface of revolution of lug and the side of guide way 02, the lug of being convenient for slides smoothly inside the guide way 02. When the annular nozzle 1 is not extruded by the plane to be measured, the annular nozzle 1 makes the projection of the annular nozzle 1 be located at the bottom end of the guide groove 02 of the piston body 2 under the action of the self weight, and at the moment, one end of the annular nozzle 1 close to the piston body 2 is still located inside the annular cavity of the piston body 2. When the annular nozzle 1 is pressed by the plane to be measured, the projection slides upwards along the guide groove 02, that is, the annular nozzle 1 slides towards the direction close to the piston body 2, so that the ultrasonic probe 13 is exposed and contacts with the plane to be measured.
Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.
Example 6:
the present embodiment is further optimized on the basis of any one of the above embodiments 1 to 5, as shown in fig. 7 and 8, the piston body 2 is a cylindrical structure, and an annular cavity is disposed inside the piston body 2; the top of the annular cavity of the piston body 2 is communicated with the annular cavity of the coupling agent box 3 through a plurality of one-way valves 31 arranged along the circumferential direction; the bottom opening of the annular cavity is provided, and the annular nozzle 1 is coaxially and slidably arranged in the bottom opening of the annular cavity.
The piston body 2 is a cylindrical structure with a central through hole, and an annular cavity is arranged inside the piston body 2. The top of the piston body 2 is correspondingly provided with a plurality of through holes communicated with the annular cavity inside the coupling agent box 3 along the circumferential direction, the inner wall of each through hole is provided with an internal thread, and the outer wall of the check valve 31 is provided with an external thread corresponding to the internal thread of the through hole and is screwed inside the through hole. The inside of the check valve 31 is provided with a return spring and steel balls, and when the pressure of the couplant inside the annular cavity is not acted, the steel balls enable the check valve 31 to keep smooth under the action of the self gravity and the elasticity of the spring, so that the couplant can flow into the annular cavity of the piston body 2 from the inside of the annular cavity of the coupling agent box 3. The end that the annular cavity inside piston body 2 is close to the thick plane that awaits measuring is provided with annular opening, the inside slidable mounting of annular opening has the one end of annular nozzle 1, annular nozzle 1 slides and extrudes the inside couplant of annular cavity of piston body 2 towards the direction that is close to piston body 2 when pressurized, check valve 31 receives the pressure of couplant and closes this moment, then the inside couplant of the annular cavity of piston body 2 gets into the inside of annular nozzle 1 under the pressure effect and sprays to the thick plane that awaits measuring through annular nozzle 1.
Other parts of this embodiment are the same as any of embodiments 1 to 5, and thus are not described again.
Example 7:
the present embodiment is further optimized based on any one of the above embodiments 1 to 6, as shown in fig. 9, the annular nozzle 1 is a cylindrical structure, an annular cavity is disposed inside the annular nozzle 1, a top of the annular cavity of the annular nozzle 1 is communicated with the annular cavity of the piston body 2 through a plurality of liquid inlet holes 19 disposed along a circumferential direction, and a bottom of the annular cavity of the annular nozzle 1 is disposed along a circumferential direction with a plurality of injection ports 20.
One end of the annular nozzle 1 is a liquid inlet end, the other end of the annular nozzle 1 is a liquid spraying end, the liquid inlet end of the annular nozzle 1 is arranged in the annular cavity of the piston body 2 in a sliding mode and communicated with the annular cavity of the annular nozzle 1 and the annular cavity of the piston body 2 through a plurality of liquid inlet holes 19, and then the coupling agent is sprayed on a thick plane to be measured through the spray opening 20.
When the ultrasonic thickness measuring device is used, the ultrasonic thickness measuring device is set according to an NC program, driven by a main shaft head of a machine tool, rapidly moves to a certain distance above a measured position, and then slowly approaches to a measured surface, firstly, the annular nozzle 1 contacts with the measured surface and then slides upwards, the check valve 31 at the top of the piston body 2 is closed at the moment, the pressure inside the cavity of the piston body 2 is gradually increased, a couplant in the annular cavity of the piston body 2 enters a liquid injection cavity through the liquid inlet 19, the liquid injection cavity is formed by the annular cavity of the piston body 2 and the annular cavity of the annular nozzle 1, and then the couplant is sprayed on the measured surface through the injection port 20.
The ultrasonic thickness measuring device is controlled by a program to continuously move downwards, the ultrasonic probe 13 moves upwards after contacting the measured surface, because the ultrasonic probe 13 is connected with the piston body 2, the coupling agent box 3, the probe shell 4 and other structures through threads, the upward movement of the ultrasonic probe 13 drives the probe shell 4 to slide upwards along the sliding groove 01, the relative position relation with the installation body 5 is changed, the displacement sensor 15 detects the displacement change, the control system records the thickness detection value of the ultrasonic probe 13 when the displacement change reaches a set trigger threshold value, if the structure or the allowance value of the measured position is different from the theoretical setting during programming, the ultrasonic probe 13 still moves downwards under the control of the program after the measurement signal is triggered and collected, in order to prevent the ultrasonic probe 13 from being damaged due to excessive compression, the program is suspended when the relative displacement between the probe shell 4 and the installation body 5 reaches the error prevention threshold value by setting the error prevention threshold value, the machine tool stops moving.
Other parts of this embodiment are the same as any of embodiments 1 to 6, and thus are not described again.
Example 8:
this embodiment is further optimized on the basis of any of the embodiments 1 to 7, and as shown in fig. 5 and 6, the filling port 23 with a cover and the observation window 16 are provided on the outer side surface of the bottom of the annular cavity of the coupling agent box 3.
A filling opening 23 is formed in the outer side surface of the coupling agent box 3 corresponding to the bottom of the annular cavity, the filling opening 23 is usually blocked by a sealing cover, and when couplant needs to be filled, the sealing cover is enclosed and the couplant is filled into the annular cavity of the coupling agent box 3 through the filling opening 23.
In order to conveniently observe whether the couplant in the couplant box 3 is used up, a transparent observation window 16 is arranged on the outer side surface of the couplant box 3, scales are arranged on the observation window 16, and the surplus of the couplant can be visually observed through the scales to timely supplement the couplant.
Other parts of this embodiment are the same as any of embodiments 1 to 7, and thus are not described again.
Example 9:
this embodiment is further optimized on the basis of any one of the above embodiments 1 to 8, as shown in fig. 1, 2, and 4, the ultrasonic probe 13 is connected with one end of the connecting rod 11 through a rubber pad 12 in a universal rotation manner, and a protective sleeve 10 extending to the inside of the hollow cavity of the probe housing 4 is coaxially disposed at one end of the connecting rod 11 close to the probe housing 4.
The one end that connecting rod 11 is close to the thick plane that awaits measuring passes through the ball pivot with the one end of rubber pad 12 and realizes universal rotation to be connected, and the spiro union or bonding have ultrasonic probe 13 on the other end of rubber pad 12, and when ultrasonic probe 13 pressurized, rubber pad 12 can effective buffer pressure, and through the universal rotation connection structure of rubber pad 12 with connecting rod 11 end, realization rubber pad 12 drives ultrasonic probe 13 and the laminating of different inclination's inclined plane, realizes the thickness measurement to the inclined plane simultaneously. The connecting rod 11 is kept away from the coaxial protective sheath 10 that is provided with the mesopore of the one end of awaiting measuring thick plane, and protective sheath 10 extends to in the central cavity of stock solution subassembly 001, probe shell 4, installation body 5, and the inside cavity of protective sheath 10 is used for walking the line and protects the cable.
Other parts of this embodiment are the same as any of embodiments 1 to 8, and thus are not described again.
Example 10:
this embodiment is further optimized on the basis of any one of the above embodiments 1 to 9, as shown in fig. 4, the protective sheath 10 is a hollow structure, a lead 14 connected to the ultrasonic probe 13 is disposed in the hollow cavity of the protective sheath 10, and the lead 14 extends upward to the inside of the hollow cavities of the probe housing 4 and the mounting body 5.
The wire 14 is used for being connected ultrasonic probe 13 with external control system, wire 14 passes rubber pad 12 in proper order, connecting rod 11 and the inside cavity of protective sheath 10, place in the cavity that installing body 5 and probe shell 4 formed with the heliciform form, the top of installing body 5 is provided with the wire guide, wire 14 wears out installing body 5 and is connected with external control system through the wire guide, the instruction is accepted and data acquisition is carried out, wire 14 places with helical structure, can not produce the problem of wire 14 atress rupture when guaranteeing that probe shell 4 and adapting unit and installing body 5 take place relative slip.
Other parts of this embodiment are the same as any of embodiments 1 to 9, and thus are not described again.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (10)
1. An online detection ultrasonic thickness measuring device comprises a hollow mounting body (5), and is characterized in that a hollow probe shell (4) is slidably mounted inside a cavity of the mounting body (5), an annular liquid storage component (001) is mounted at one end, far away from the mounting body (5), of the probe shell (4), and an annular nozzle (1) communicated with an inner cavity of the liquid storage component (001) is slidably mounted at one end, far away from the probe shell (4), of the liquid storage component (001); the inside coaxial arrangement of stock solution subassembly (001) has connecting rod (11), the one end of connecting rod (11) extends to the inside of annular nozzle (1) and universal activity is provided with ultrasonic transducer (13).
2. The ultrasonic thickness measuring device for on-line detection according to claim 1, wherein sliding grooves (01) are formed in two sides of the mounting body (5), and limit screws (7) which extend into the sliding grooves (01) and slide along the sliding grooves (01) are formed in two sides of the probe shell (4); one end of the sliding groove (01) far away from the probe shell (4) is provided with a displacement sensor (15), and the measuring end of the displacement sensor (15) is connected with the side face of the limiting screw (7).
3. The ultrasonic thickness measuring device for on-line detection according to claim 2, wherein a spring (9) is coaxially arranged between the hollow cavity inside of the mounting body (5) and the hollow cavity inside of the probe housing (4).
4. The on-line detection ultrasonic thickness measuring device according to any one of claims 1 to 3, wherein the liquid storage component (001) comprises a piston body (2) and a coupler box (3), the coupler box (3) is coaxially arranged at one end of the probe shell (4) far away from the installation body (5), the piston body (2) is coaxially arranged at one end of the coupler box (3) far away from the probe shell (4), the annular nozzle (1) is coaxially and slidably arranged at one end of the piston body (2) far away from the coupler box (3), and one end of a connecting rod (11) is coaxially arranged in a central hole of the piston body (2); the annular nozzle (1), the piston body (2) and the coupling agent box (3) are all internally provided with annular cavities which are communicated with each other.
5. The on-line measuring ultrasonic thickness measuring device of claim 4, wherein two sides of the piston body (2) are provided with guide grooves (02) along the vertical direction, two sides of the annular nozzle (1) are provided with lugs corresponding to the guide grooves (02), and the lugs are slidably arranged in the guide grooves (02).
6. The on-line detection ultrasonic thickness measuring device of claim 4, wherein the piston body (2) is of a cylindrical structure; the top of the annular cavity of the piston body (2) is communicated with the annular cavity of the coupling agent box (3) through a plurality of one-way valves (31) arranged along the circumferential direction; the bottom opening of the annular cavity of the piston body (2) is provided, and the annular nozzle (1) is coaxially and slidably arranged in the bottom opening of the annular cavity of the piston body (2).
7. The on-line measuring ultrasonic thickness measuring device according to claim 6, wherein the annular nozzle (1) is of a cylindrical structure, the top of the annular cavity of the annular nozzle (1) is communicated with the annular cavity of the piston body (2) through a plurality of circumferentially arranged liquid inlet holes (19), and the bottom of the annular cavity of the annular nozzle (1) is circumferentially provided with a plurality of jet ports (20).
8. The on-line measuring ultrasonic thickness measuring device of claim 7, wherein the outside of the bottom of the annular cavity of the coupling agent box (3) is provided with an observation window (16) and a filling port (23) with a sealing cover.
9. The on-line measuring ultrasonic thickness measuring device of claim 1, wherein the ultrasonic probe (13) is connected with one end of the connecting rod (11) through a rubber pad (12) in a universal rotation manner, and a protective sleeve (10) extending to the inside of the hollow cavity of the probe housing (4) is coaxially arranged at one end of the connecting rod (11) close to the probe housing (4).
10. An on-line measuring ultrasonic thickness measuring device according to claim 9, wherein the protective sheath (10) is a hollow structure, a lead (14) connected to the ultrasonic probe (13) is disposed in the hollow cavity of the protective sheath (10), and the lead (14) extends upward to the inside of the hollow cavities of the probe housing (4) and the mounting body (5).
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| CN202020219630.9U CN211651545U (en) | 2020-02-27 | 2020-02-27 | Online detection ultrasonic thickness measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539720A (en) * | 2020-12-23 | 2021-03-23 | 北京宝隆特设备检测有限公司 | Efficient ultrasonic thickness gauge and using method thereof |
| CN112815886A (en) * | 2020-12-31 | 2021-05-18 | 南京晨光集团有限责任公司 | Wall thickness measuring system for thin-wall revolving body workpiece |
| CN113983974A (en) * | 2021-10-18 | 2022-01-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Special device for detecting wall thickness of hollow blade by shape-following ultrasonic and detection method thereof |
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2020
- 2020-02-27 CN CN202020219630.9U patent/CN211651545U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539720A (en) * | 2020-12-23 | 2021-03-23 | 北京宝隆特设备检测有限公司 | Efficient ultrasonic thickness gauge and using method thereof |
| CN112815886A (en) * | 2020-12-31 | 2021-05-18 | 南京晨光集团有限责任公司 | Wall thickness measuring system for thin-wall revolving body workpiece |
| CN113983974A (en) * | 2021-10-18 | 2022-01-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Special device for detecting wall thickness of hollow blade by shape-following ultrasonic and detection method thereof |
| CN113983974B (en) * | 2021-10-18 | 2024-03-22 | 中国航发沈阳黎明航空发动机有限责任公司 | Special device for hollow blade wall thickness conformal ultrasonic detection and detection method thereof |
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