CN212109915U - High-precision non-contact type revolution surface profile measuring device - Google Patents
High-precision non-contact type revolution surface profile measuring device Download PDFInfo
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- CN212109915U CN212109915U CN202021214009.XU CN202021214009U CN212109915U CN 212109915 U CN212109915 U CN 212109915U CN 202021214009 U CN202021214009 U CN 202021214009U CN 212109915 U CN212109915 U CN 212109915U
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Abstract
The utility model discloses a non-contact surface of revolution profile measuring device of high accuracy, include: the fixing frame comprises a mounting flange, a suspension plate, a suspension rod and a support stable plate, the suspension plate is arranged on the mounting flange, and the suspension rod and the support stable plate are both arranged on the suspension plate; the control piece comprises a driver, a control protective shell, a main controller, a wireless transmission module, a battery and an antenna; the movable scanning piece is arranged on the fixed frame and comprises a power transmission piece and a scanning piece, the power transmission piece is arranged on the fixed frame, and the scanning piece is arranged on the power transmission piece; the protective shell is arranged on the fixing frame and the control piece and comprises an upper protective shell and a lower protective shell, and the upper protective shell and the lower protective shell are arranged on the fixing frame. The utility model has the advantages of reasonable design, measuring speed is fast and measurement accuracy is high.
Description
Technical Field
The utility model relates to a non-contact gyration profile measurement technical field, more specifically say, the utility model relates to a non-contact surface of revolution profile measuring device of high accuracy.
Background
The processing of large-scale revolving body parts is generally finished in a processing workshop by adopting a heavy vertical turning compound machine tool. Because the size of the part is large, the weight is large, an effective machining precision detection means is lacked, the measuring precision of the three-coordinate measuring machine is high, the repeatability is good, but the in-place measurement cannot be realized due to the limitation of the size and the bearing of the equipment. The method is limited by the size of the caliper and the shape of the measured object, and has the disadvantages of few measurement points, poor repeatability and difficulty in comprehensively measuring the profile of the revolution surface. The other measuring method is that a measuring head is arranged on a machine tool, and after the machining process is finished, the outline of the revolution surface is directly measured in situ through the measuring head.
The Chinese patent 'CN 102179723B' discloses a wireless measuring head, and the device adopts a contact measuring head and a wireless communication mode to realize the on-site measurement of a numerical control machine tool. The method adopts a contact measuring head, is generally only suitable for measuring a plurality of discrete points, has low measuring efficiency under the condition of a plurality of sampling points, is not suitable for accurately evaluating the error of the contour surface, and has the measuring precision completely depending on the motion precision of a machine tool, so that the requirement for evaluating the processing precision is difficult to meet. Chinese patent 'CN 102198634B' discloses a device for measuring the profile of a crankshaft on a machine, which adopts a displacement measuring device and a measuring head, ensures the contact of the measuring head and a workpiece through passive reciprocating motion, and simultaneously collects the axial displacement and the axial displacement of a machine tool and the reading of a grating on a wedge-shaped measuring head, so as to obtain the profile error of the crankshaft.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides a non-contact surface of revolution profile measuring device of high accuracy specifically adopts following technical scheme:
a high-precision non-contact type revolution surface contour measuring device comprises:
the mount, the mount includes mounting flange, hangs the board, hangs the pole and holds in the palm the steadying plate, it sets up to hang the board on the mounting flange, hang the pole with hold in the palm the steadying plate and all set up hang on the board.
The control piece, it sets up on the mount, the control piece includes driver, control protecting crust, main control unit, wireless transmission module, battery and antenna, the driver the control protecting crust with the battery all sets up on the mounting flange, main control unit wireless transmission module with the antenna all sets up in the control protecting crust, the driver with main control unit electricity is connected, main control unit respectively with wireless transmission module the battery with the antenna electricity is connected.
The movable scanning piece is arranged on the fixed frame and comprises a power transmission piece and a scanning piece, the power transmission piece is arranged on the fixed frame, and the scanning piece is arranged on the power transmission piece; the power transmission part comprises a motor, a ball screw, a nut and a guide rail, the motor is arranged on the mounting flange, the ball screw is arranged on the motor, the nut is arranged on the ball screw, and the guide rail is arranged on the suspension plate.
The protective shell is arranged on the fixing frame and the control piece and comprises an upper protective shell and a lower protective shell, and the upper protective shell and the lower protective shell are arranged on the fixing frame.
Preferably, the suspension plate is rectangular plate-shaped, one end of the suspension plate is vertically and fixedly arranged on one side of the mounting flange, the suspension rods are square rod-shaped, the suspension rods are provided with a plurality of suspension rods, the suspension rods are mutually parallel and vertically and fixedly arranged on one side of the suspension plate, and the free ends of the suspension rods are provided with fixing threaded holes; the support stabilizing plate is vertically and fixedly arranged at the other end of the suspension plate.
Preferably, the motor is a servo motor, and the motor is respectively electrically connected with the driver and the battery; one end of the ball screw is fixedly connected with a rotating shaft of the motor, and the other end of the ball screw is arranged on the support stable plate through a thrust ball bearing; the nut is matched with the ball screw, and the nut is sleeved on the ball screw; the guide rail is parallel to the ball screw.
Preferably, the scanning element comprises a sliding table, a distance sensor and a grating ruler, the sliding table is arranged on the nut, the distance sensor is arranged on the sliding table, and the grating ruler is arranged on the suspension plate; the sliding table is provided with a sliding groove, and the sliding groove is sleeved on the guide rail.
Preferably, the distance sensor is a non-contact distance sensor, and the distance sensor is electrically connected with the main controller and the battery respectively; two ends of the grating ruler are respectively arranged on the free ends of the suspension rods through first screws, and the first screws are matched with the fixed threaded holes, so that the grating ruler is parallel to the ball screw, and meanwhile, a reading head of the grating ruler is arranged on the distance sensor.
Preferably, the upside protecting crust includes the upside guard plate, the upside guard plate is rectangular plate-like, the upside guard plate is provided with the multi-disc, the multi-disc the upside guard plate passes through the second screw and ends the concatenation in proper order and constitute first rectangular channel, first rectangular channel suit is in outside the control, and will through the third screw first rectangular channel fastening is in mounting flange with hang on the board.
Preferably, the lower side protective shell comprises a lower side protective plate which is rectangular plate-shaped, the lower side protective plate is provided with a plurality of pieces which are sequentially spliced to form a second rectangular groove through fourth screws, the second rectangular groove is sleeved outside the movable scanning piece, and the second rectangular groove is fastened on the suspension plate through fifth screws.
Preferably, a measuring window is arranged on the lower side protection plate corresponding to the distance sensor, the measuring window is in a rectangular through hole shape, and the measuring window is parallel to the ball screw; and the opening and closing door piece is arranged at the measuring window.
The utility model discloses at least, include following beneficial effect:
1) the high-precision non-contact type revolution surface profile measuring device has reasonable structural design, high measuring speed and high measuring precision and can be suitable for different machine tool equipment;
2) the utility model discloses non-contact surface of revolution profile measuring device of high accuracy has set up the removal scanning piece, the removal scanning piece includes driving medium and scanning piece, and this driving medium can drive displacement about this scanning piece, and this scanning piece can measure the work piece that awaits measuring during the displacement, has effectively improved measuring speed and measurement accuracy.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a structural diagram of a high-precision non-contact type revolution surface profile measuring device of the present invention;
FIG. 2 is a schematic diagram of the high-precision non-contact type revolution surface profile measuring device of the present invention for measuring the outer profile of the workpiece to be measured;
FIG. 3 is a schematic diagram of the high-precision non-contact type revolution surface profile measuring device of the present invention for measuring the inner profile of the workpiece to be measured;
FIG. 4 is a schematic diagram of the high-precision non-contact type revolution surface profile measuring device and the upper computer of the present invention;
FIG. 5 is a schematic perspective view of the high-precision non-contact surface profile measuring device of the present invention;
FIG. 6 is a schematic view of the left-side perspective structure of the high-precision non-contact type revolution surface profile measuring device of the present invention after the protective shell is removed;
FIG. 7 is a schematic diagram of the high-precision non-contact type revolution surface profile measuring device of the present invention showing the right-side perspective structure after the protective shell is removed;
FIG. 8 is a schematic view of the three-dimensional structure of the measurement window in the high-precision non-contact type revolution surface profile measuring device of the present invention;
FIG. 9 is a schematic view of a high-precision three-dimensional structure of an opening/closing door in the non-contact revolution surface profile measuring device of the present invention;
fig. 10 is a partially enlarged view of a portion in fig. 9 of the high-precision noncontact revolution surface profile measuring device according to the present invention.
Wherein: 1-mounting flange, 2-suspension plate, 3-suspension rod, 4-support stable plate, 6-driver, 7-control protective shell, 8-battery, 9-motor, 10-ball screw, 11-guide rail, 12-sliding table, 13-distance sensor, 14-grating ruler, 15-reading head, 16-upper side protective plate, 17-lower side protective plate, 18-measuring window, 19-sliding chute, 20-sealing door, 21-tension spring, 22-metal pull rod, 23-magnetic coil, 24-insulating block, 25-main controller, 26-wireless transmission module, 27-antenna, 28-measured workpiece, 29-rotary table and 30-upper computer.
Detailed Description
The technical solution of the present invention will be described in detail by way of embodiments with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
According to the drawings of fig. 1-10, a high-precision non-contact type revolution surface contour measuring device comprises a fixed frame, a control part, a movable scanning part and a protective shell, wherein the control part, the movable scanning part and the protective shell are all arranged on the fixed frame. The fixing frame comprises a mounting flange 1, a suspension plate 2, a suspension rod 3 and a support stable plate 4, wherein the suspension plate 2 is arranged on the mounting flange 1, and the suspension rod 3 and the support stable plate 4 are arranged on the suspension plate 2.
The mounting flange 1 is a square flange plate, the suspension plate 2 is rectangular plate-shaped, and one end of the suspension plate 2 is vertically fixed to the lower side of one side of the mounting flange 1. The hanging rod 3 is in a square rod shape, the hanging rod 3 is provided with two hanging rods 3, the two hanging rods 3 are mutually parallel, vertically and fixedly arranged on one side edge of the hanging plate 2, and the free ends of the two hanging rods 3 are provided with fixing threaded holes. The support stabilizing plate 4 is vertically and fixedly arranged at the other end of the suspension plate 2. The high-precision non-contact type revolution surface profile measuring device can be used for installing the mounting flange on the tool apron through the bolt, and further measuring a workpiece to be measured.
The control piece includes driver 6, control protecting crust 7, main control unit 25, wireless transmission module 26, battery 8 and antenna 27, the driver 6 the control protecting crust 7 with battery 8 all sets up on mounting flange 1, main control unit 25 wireless transmission module 26 with antenna 27 all sets up in the control protecting crust 7, the driver 6 with main control unit 25 electricity is connected, main control unit 25 respectively with wireless transmission module 26 battery 8 with antenna 27 electricity is connected.
The movable scanning piece comprises a power transmission piece and a scanning piece, the power transmission piece is arranged on the fixed frame, and the scanning piece is arranged on the power transmission piece. The power transmission part comprises a motor 9, a ball screw 10, a nut and a guide rail 11, the motor 9 is arranged on the mounting flange 1, the ball screw 10 is arranged on the motor 9, the nut is arranged on the ball screw 10, and the guide rail 11 is arranged on the suspension plate 2. The motor 9 is a servo motor, and the motor 9 is electrically connected with the driver 6 and the battery 8 respectively. Ball screw 10 one end with motor 9's pivot fixed connection, the ball screw 10 other end passes through thrust ball bearing and sets up hold in the palm on the steadying plate 4. The nut is matched with the ball screw 10, and the nut is sleeved on the ball screw 10. The guide rail 11 is parallel to the ball screw 10.
The scanning piece comprises a sliding table 12, a distance sensor 13 and a grating ruler 14, the sliding table 12 is arranged on the nut, the distance sensor 13 is arranged on the sliding table 12, and the grating ruler 14 is arranged on the suspension plate 2. The sliding table 12 is provided with a sliding groove, and the sliding groove is sleeved on the guide rail 11. The distance sensor 13 is a non-contact distance sensor, and the distance sensor 13 is electrically connected with the main controller 25 and the battery 8 respectively. Two ends of the grating ruler 14 are respectively arranged on the free ends of the two suspension rods 3 through first screws, and the first screws are matched with the fixed threaded holes, so that the grating ruler 14 is parallel to the ball screw 10, and meanwhile, a reading head 15 of the grating ruler 14 is arranged on the distance sensor 13.
The protecting crust includes upside protecting crust and downside protecting crust, the upside protecting crust with the downside protecting crust all sets up on the mount, the upside protecting crust includes upside guard plate 16, upside guard plate 16 is rectangular plate-like, upside guard plate 16 is provided with three, three the upside guard plate 16 finishes the concatenation in proper order through the second screw and constitutes first rectangular channel, first rectangular channel suit is in outside the control, and will through the third screw first rectangular channel fastening is in mounting flange 1 with hang on the board 2. Downside protecting sheathing includes downside guard plate 17, downside guard plate 17 is rectangular plate, downside guard plate 17 is provided with three, three downside guard plate 17 finishes the concatenation in proper order through the fourth screw and constitutes the second rectangular channel, the second rectangular channel suit is in outside the removal scanning piece, and will through the fifth screw the second rectangular channel fastening is in hang on the board 2.
And a measuring window 18 is arranged on the lower side protection plate 17 corresponding to the distance sensor 13, the measuring window 18 is in a rectangular through hole shape, and the measuring window 18 is parallel to the ball screw 10. The measuring window 18 is used for the distance sensor 13 to perform scanning measurement on a workpiece to be measured. The measurement window 18 is provided with an opening and closing door part, the opening and closing door part comprises a sliding groove 19, a sealing door 20, an extension spring 21, a metal pull rod 22 and a magnetic coil 23, the sliding groove 19 and the magnetic coil 23 are arranged on the lower side protection plate 17, the sealing door 20 is arranged on the sliding groove 19, and the extension spring 21 and the metal pull rod 22 are arranged on the sealing door 20.
The sliding groove 19 is in a rectangular groove shape, one end face of the sliding groove 19 is open, the other end face of the sliding groove 19 is closed, the length of the sliding groove 19 is larger than the width of the measuring window 18, and the number of the sliding grooves 19 is two. The two sliding grooves 19 are mutually corresponding and fixedly arranged on the lower side protection plate 17 at two ends of the measuring window 18 in parallel. The sealing door 20 is rectangular plate-shaped, the size of the sealing door 20 is not smaller than that of the measuring window 18, and two ends of the sealing door 20 are respectively embedded in the two sliding grooves 19. The number of the extension springs 21 is two, and the two extension springs 21 are correspondingly arranged at two ends of the door sealing 20 one by one. And the free ends of the two extension springs 21 are correspondingly arranged on the other end surface of the sliding chute 19 one by one. The extension spring 21 can pull the sealing door 20 to move along the sliding slot 19, so that the sealing door 20 blocks the measuring window 18. The magnetic coil 23 is fixedly arranged on the lower side protection plate 17 through an insulation block 24, the magnetic coil 23 is sleeved on the metal pull rod 22, and meanwhile, the magnetic coil 23 is electrically connected with the main controller 25 and the battery 8 respectively. When the magnetic coil 23 is energized, electromagnetism is generated, the electromagnetism can pull the metal pull rod 22 to move along the axial direction, and then the metal pull rod 22 drives the sealing door 20 to move horizontally, so that the measuring window 18 is opened. The pulling force of the electromagnetic pair pulling rod is larger than the sum of the pulling forces of the two extension springs 21.
The high-precision non-contact type revolution surface contour measuring device can be placed in a tool magazine of a part processing machine tool, the high-precision non-contact type revolution surface contour measuring device is still fixed on a machine tool rotary table 29 after a workpiece to be measured is processed, and the machine tool can be installed on the tool magazine through bolts after a processing tool is dismounted. After the measuring device is moved to a specified position by the machine tool, the machine tool rotary table 29 is started, and the machine tool rotary table 29 is rotated at a specified speed. The upper computer 30 sends a measurement instruction to the high-precision non-contact type revolution surface profile measuring device through a wireless transmission device, and starts to operate and measure after the high-precision non-contact type revolution surface profile measuring device receives the measurement instruction, wherein the measurement process comprises the following steps:
firstly, the main controller 25 simultaneously sends a scanning motion instruction to the driver 6 and the distance sensor 13, the driver 6 receives the motion instruction and then starts the motor 9 to rotate, the motor 9 drives the ball screw 10 to rotate along the circumferential direction, and the ball screw 10 drives the distance sensor 13 to move downwards through the nut and the sliding table 12; when the distance sensor 13 moves downwards, the grating ruler 14 records the moving distance of the distance sensor in real time and transmits the monitoring displacement data to the main controller 25 in time; after receiving the scanning command, the distance sensor 13 starts scanning the workpiece to be measured, and transmits the scanning data to the main controller 25. Then, the main controller 25 receives the displacement data and the scanning data and then records the data in its internal memory in time until the distance sensor 13 is displaced to a set distance. Finally, the main controller 25 transmits all the measurement data to the upper computer 30 through the wireless transmission module 26, and the measurement process is finished.
After the measurement is finished, the high-precision non-contact type revolution surface contour measuring device is detached and moved into the tool magazine again. In the whole measurement process, the high-precision non-contact type revolution surface profile measuring device is powered by the internal battery 8 and performs data interaction with the upper computer 30 in a wireless communication mode without the participation of a machine tool numerical control system. According to the data transmitted back to the upper computer 30 by the measuring device, the profile of the revolution surface of the measured workpiece 28 can be reconstructed, the processing error is evaluated, and the non-contact in-situ measurement of the revolution profile is realized.
The above-mentioned measuring flow and the control module that relates are only for the better understanding of the ordinary technical personnel in this field, the utility model discloses in the control module and the function that adopt all be prior art and conventional function, the utility model discloses the protection is the structure of this device and relation of connection.
The high-precision non-contact type revolution surface profile measuring device has reasonable structural design, high measuring speed and high measuring precision and can be suitable for different machine tool equipment; the utility model discloses non-contact surface of revolution profile measuring device of high accuracy has set up the removal scanning piece, the removal scanning piece includes driving medium and scanning piece, and this driving medium can drive displacement about this scanning piece, and this scanning piece can measure the work piece that awaits measuring during the displacement, has effectively improved measuring speed and measurement accuracy.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. A high-precision non-contact type revolution surface contour measuring device is characterized by comprising:
the fixing frame comprises a mounting flange, a suspension plate, a suspension rod and a support stable plate, the suspension plate is arranged on the mounting flange, and the suspension rod and the support stable plate are both arranged on the suspension plate;
a control member disposed on the fixing frame;
the movable scanning piece is arranged on the fixed frame and comprises a power transmission piece and a scanning piece, the power transmission piece is arranged on the fixed frame, and the scanning piece is arranged on the power transmission piece; the power transmission part comprises a motor, a ball screw, a nut and a guide rail, the motor is arranged on the mounting flange, the ball screw is arranged on the motor, the nut is arranged on the ball screw, and the guide rail is arranged on the suspension plate;
the protective shell is arranged on the fixing frame and the control piece and comprises an upper protective shell and a lower protective shell, and the upper protective shell and the lower protective shell are arranged on the fixing frame.
2. The high precision non-contact surface of revolution profile measuring device of claim 1, wherein the control component comprises a driver, a control shield, a main controller, a wireless transmission module, a battery and an antenna, the driver, the control shield and the battery are all disposed on the mounting flange, the main controller, the wireless transmission module and the antenna are all disposed within the control shield, the driver is electrically connected to the main controller, and the main controller is electrically connected to the wireless transmission module, the battery and the antenna, respectively.
3. The high-precision non-contact type revolution surface profile measuring device according to claim 2, wherein the suspension plate is rectangular plate-shaped, one end of the suspension plate is vertically and fixedly arranged on one side of the mounting flange, the suspension rods are square rod-shaped, the suspension rods are provided with a plurality of suspension rods, the suspension rods are mutually parallel and vertically and fixedly arranged on one side of the suspension plate, and the free ends of the suspension rods are provided with fixing threaded holes; the support stabilizing plate is vertically and fixedly arranged at the other end of the suspension plate.
4. The high-precision non-contact type revolution surface contour measuring device according to claim 3, wherein the motor is a servo motor, and the motor is electrically connected with the driver and the battery respectively; one end of the ball screw is fixedly connected with a rotating shaft of the motor, and the other end of the ball screw is arranged on the support stable plate through a thrust ball bearing; the nut is matched with the ball screw, and the nut is sleeved on the ball screw; the guide rail is parallel to the ball screw.
5. The high-precision non-contact type revolution surface profile measuring device according to claim 4, wherein the scanning member comprises a sliding table, a distance sensor and a grating ruler, the sliding table is arranged on the nut, the distance sensor is arranged on the sliding table, and the grating ruler is arranged on the suspension plate; the sliding table is provided with a sliding groove, and the sliding groove is sleeved on the guide rail.
6. The high precision non-contact surface contour measuring device according to claim 5, wherein the distance sensor is a non-contact distance sensor electrically connected to the main controller and the battery, respectively; two ends of the grating ruler are respectively arranged on the free ends of the suspension rods through first screws, and the first screws are matched with the fixed threaded holes, so that the grating ruler is parallel to the ball screw, and meanwhile, a reading head of the grating ruler is arranged on the distance sensor.
7. The high-precision non-contact type revolution surface profile measuring device according to claim 6, wherein the upper protective shell comprises an upper protective plate, the upper protective plate is rectangular and provided with a plurality of pieces, the upper protective plate is sequentially spliced into a first rectangular groove by ending second screws, the first rectangular groove is sleeved outside the control part, and the first rectangular groove is fastened to the mounting flange and the suspension plate by third screws.
8. The high-precision non-contact type revolution surface contour measuring device according to claim 7, wherein the lower side protection shell comprises a lower side protection plate, the lower side protection plate is rectangular plate-shaped, a plurality of lower side protection plates are arranged, the lower side protection plates are sequentially spliced into a second rectangular groove through fourth screws, the second rectangular groove is sleeved outside the movable scanning piece, and the second rectangular groove is fastened on the suspension plate through fifth screws.
9. The high-precision non-contact type revolution surface profile measuring device according to claim 8, wherein a measuring window is arranged on the lower side protection plate corresponding to the distance sensor, the measuring window is in a rectangular through hole shape, and the measuring window is parallel to the ball screw; and the opening and closing door piece is arranged at the measuring window.
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| CN202021214009.XU CN212109915U (en) | 2020-06-28 | 2020-06-28 | High-precision non-contact type revolution surface profile measuring device |
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| CN202021214009.XU CN212109915U (en) | 2020-06-28 | 2020-06-28 | High-precision non-contact type revolution surface profile measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690307A (en) * | 2023-04-10 | 2023-09-05 | 大连理工大学 | On-machine real-time measurement method and system of full-closed-loop five-axis numerical control machine tool |
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2020
- 2020-06-28 CN CN202021214009.XU patent/CN212109915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116690307A (en) * | 2023-04-10 | 2023-09-05 | 大连理工大学 | On-machine real-time measurement method and system of full-closed-loop five-axis numerical control machine tool |
| CN116690307B (en) * | 2023-04-10 | 2023-12-05 | 大连理工大学 | On-machine real-time measurement method and system of full-closed-loop five-axis numerical control machine tool |
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