CN111409023B - Three-laser displacement sensor clamp convenient for angle adjustment - Google Patents
Three-laser displacement sensor clamp convenient for angle adjustment Download PDFInfo
- Publication number
- CN111409023B CN111409023B CN202010188879.2A CN202010188879A CN111409023B CN 111409023 B CN111409023 B CN 111409023B CN 202010188879 A CN202010188879 A CN 202010188879A CN 111409023 B CN111409023 B CN 111409023B
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- China
- Prior art keywords
- angle adjusting
- arc
- angle
- positioning
- laser displacement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Abstract
The invention discloses a three-laser displacement sensor clamp convenient for angle adjustment, which comprises a regular triangular prism positioning piece, an L-shaped fixing piece, an angle adjusting mechanism and a clamp flange plate. The angle adjusting mechanism is arranged on the L-shaped fixing piece and comprises an angle adjusting screw rod, an arc-shaped angle adjusting sliding groove, an angle positioning groove, a spring, a sleeve, scale marks and the like. Regular triangular prism setting element accessible bolted connection assembles three L type mounting circumference to accessible bolted connection assembles the anchor clamps ring flange so that cooperate with the robot is terminal. This anchor clamps can make three laser displacement sensor evenly arrange in the circumference of cutter, can convenient adjustment sensor angle under the different measurement angle demands, remove the loaded down with trivial details process that the angular adjustment in-process needs the dismouting sensor from.
Description
Technical Field
The invention relates to a clamp, in particular to a three-laser displacement sensor clamp.
Background
For a large number of workpieces with large space size and complex surface shape, surface normal measurement is often required to be performed on the workpieces when the workpieces are subjected to surface processing, and currently, a measurement method based on a non-contact laser displacement sensor is widely applied, and a laser displacement sensor clamping measurement method with different angles is selected according to different application conditions. For example, in the drilling process of the surface of a workpiece, under the surfaces of workpieces with different hole diameter drilling requirements or different curvatures, the measuring point ranges around the drilling points to be measured are different, laser displacement sensors with different angles are required to be selected to measure the normal vector of the surface of the workpiece, so that the workpiece surface is more accurate.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a three-laser displacement sensor clamp capable of being adjusted in angle conveniently.
The three-laser displacement sensor clamp convenient for angle adjustment comprises a regular triangular prism positioning piece, wherein a through hole is formed in the middle of the regular triangular prism positioning piece, and the through hole is used for penetrating through a machining cutter to enable the machining cutter to extend out of the through hole; the through hole takes a central connecting line of the upper bottom surface and the lower bottom surface of the regular triangular prism positioning piece as a central axis, three assembly thread blind holes are respectively formed in three rectangular side walls of the regular triangular prism positioning piece, the connecting line of the centers of the three assembly thread blind holes on each rectangular side wall forms an equilateral triangle, the centers of the equilateral triangles are positioned at the centers of two diagonal lines of the rectangular side walls, and the positions and the sizes of the assembly thread blind holes on the three rectangular side walls relative to the respective rectangular side walls are the same;
each rectangular side wall is respectively connected with an L-shaped fixing piece, a first right-angle plate of each L-shaped fixing piece is provided with mounting through holes which are arranged in one-to-one correspondence with the positions of the three assembling threaded blind holes on the rectangular side wall, and the assembling threaded blind holes and the mounting through holes are fixedly connected through assembling inner hexagonal bolts penetrating through the assembling threaded blind holes and the mounting through holes;
an arc angle adjusting sliding groove is formed in one side of the second right-angle plate of each L-shaped fixing piece, a plurality of arc angle adjusting positioning grooves are continuously formed in the positions of two arc side walls of each arc angle adjusting sliding groove and on the rear wall of the second right-angle plate, which is away from one side of the assembly thread blind hole, respectively, the central axis of each arc angle adjusting positioning groove is located on the central arc line of each arc angle adjusting sliding groove, the depth of each arc angle adjusting positioning groove is half of the thickness of the second right-angle plate, and the arc angle adjusting positioning grooves located on the two sides of each arc angle adjusting sliding groove are symmetrically arranged relative to the central arc line of each arc angle adjusting sliding groove; a sensor positioning hole is formed in the other side of the second right-angle plate of each L-shaped fixing piece, a laser displacement sensor is fixed on the second right-angle plate through a sensor positioning screw rod which penetrates through the laser displacement sensor and the sensor positioning hole in the direction parallel to the first right-angle plate and a nut which is screwed on the end part of the sensor positioning screw rod which penetrates through the second right-angle plate, and three laser rays emitted by the three laser displacement sensors can be converged at one point;
the angle adjusting mechanism comprises an angle adjusting screw rod, the angle adjusting screw rod penetrates through the laser displacement sensor and the arc angle adjusting chute, a spring is sleeved on a rod section on one side of the angle adjusting screw rod, which is in contact with the arc angle adjusting positioning groove, a locknut is connected to the end part of the angle adjusting screw rod on the side provided with the spring in a threaded manner, a sleeve is sleeved outside the spring, threads are formed in the outer wall of the sleeve, one end of the spring is fixedly connected with the inner wall of the sleeve, the other end, which is close to the locknut, of the spring is a movable end, and the angle adjusting screw rod can move along the arc angle adjusting chute and clamp the sleeve to be fixed at the arc angle adjusting positioning groove at a set position through the arc angle adjusting positioning groove;
the rear wall of the second right-angle plate is provided with scale marks, and the scale marks are all connecting lines of the center point of the sensor positioning hole on the outer wall of the second right-angle plate and the center point of each angle adjusting positioning groove on the outer wall of the second right-angle plate as scale marks;
three top surface assembly thread blind holes are formed in the top surface, in contact with the clamp flange, of the regular triangular prism positioning piece, the centers of the three top surface assembly thread blind holes form a top surface regular triangle, and the center of the top surface regular triangle is located on the axis of the through hole.
The method has the beneficial effects that: by uniformly arranging the three laser displacement sensors in the circumferential direction of the cutter, the measuring ranges of the laser displacement sensors arranged on the clamp can not interfere, the angle can be conveniently adjusted under different measuring angle requirements, and the complicated process of disassembling and assembling the sensors in the angle adjusting process is avoided.
Drawings
FIG. 1 is a schematic view of the assembly of a three-laser displacement sensor clamp for convenient angular adjustment of the present invention;
FIG. 2-1 is a schematic view of the arcuate angle adjustment chute and the arcuate angle adjustment positioning slot of the L-shaped fixture in the fixture of FIG. 1;
FIG. 2-2 is a schematic view of the mounting through-holes and sensor positioning holes of the L-shaped fixture in the fixture of FIG. 1;
FIGS. 2-3 are schematic scale marks of the L-shaped fixture of the fixture of FIG. 1;
FIG. 3 is a schematic view of an angle adjustment mechanism in the fixture of FIG. 1;
fig. 4 is an assembly schematic diagram of a three-laser displacement sensor fixture of the present invention.
Detailed Description
The invention is further described by way of specific embodiments with reference to the accompanying drawings in which:
as shown in the accompanying drawings, the three-laser displacement sensor clamp convenient for angle adjustment comprises a regular triangular prism positioning piece 7, wherein a through hole 8 is formed in the middle of the regular triangular prism positioning piece 7, and the through hole 8 is used for penetrating through a machining tool to enable the machining tool to extend out of the through hole 8. The through hole 8 uses the central line of the upper and lower bottom surfaces of the regular triangular prism positioning piece 7 as the central axis, three assembly thread blind holes 18 are respectively opened on the three rectangular side walls of the regular triangular prism positioning piece 7, the line of the centers of the three assembly thread blind holes 18 on each rectangular side wall forms an equilateral triangle, and the center of the equilateral triangle is located at the center of two diagonal lines of the rectangular side walls. The blind assembly threaded holes 18 on the three rectangular side walls are identical in position and size with respect to the respective rectangular side walls. The blind hole is arranged in a regular triangle and is used for limiting the freedom degree of the L-shaped fixing piece 3, so that the L-shaped fixing piece 3 and the regular triangular prism positioning piece 7 are assembled more firmly.
Each rectangular side wall is respectively connected with an L-shaped fixing piece 3, a first straight angle plate of each L-shaped fixing piece 3 is provided with mounting through holes 12 which are in one-to-one correspondence with the positions of three mounting threaded blind holes 18 on the rectangular side wall, and the mounting threaded blind holes 18 and the mounting through holes 12 are fixedly connected through mounting hexagon socket head bolts 17 penetrating through the mounting threaded blind holes 18 and the mounting through holes 12.
Open one side at the second right-angle plate of each L type mounting 3 and have arc angle regulation spout 10 two arc lateral walls department of arc angle regulation spout 10 and deviate from respectively in succession on the back wall of the second right-angle plate of assembly screw blind hole 18 one side and have a plurality of arc angle regulation constant head tank 11, the center pin of each arc angle regulation constant head tank 11 is located the central arc line of arc angle regulation spout 10, and the degree of depth of arc angle regulation constant head tank 11 is half of second right-angle plate thickness, is located the arc angle regulation constant head tank 11 of arc angle regulation spout 10 both sides set up about the central arc line symmetry of arc angle regulation spout 10. A sensor positioning hole 13 is formed on the other side of the second rectangular plate of each L-shaped fixing member 3, and a laser displacement sensor 1 is fixed on the second rectangular plate by a sensor positioning screw 15 which penetrates through the laser displacement sensor and the sensor positioning hole 13 in a direction parallel to the first rectangular plate and a nut which is screwed on the end of the sensor positioning screw 15 which penetrates through the second rectangular plate. The sensor positioning screw is mainly used for positioning the position of the sensor and used as a rotating shaft for angle adjustment.
The sleeve can be moved on the screw either manually or under spring pressure. When the angle needs to be adjusted, the sleeve is manually slid to enable the angle adjusting screw 16 to move on the angle adjusting sliding groove 10 of the L-shaped fixing piece 3, when the required angle is achieved, the sleeve is loosened, and the sensor is automatically locked under the pressure of the spring 5 to complete angle adjustment.
And the back wall of the second right-angle plate is provided with scale marks 14, so that an operator can read the angle of the positioning groove conveniently and adjust the angle conveniently. The scale marks 14 are all connecting lines of the center point of the sensor positioning hole 13 on the outer wall of the second right-angle plate and the center point of each angle adjusting positioning groove 11 on the outer wall of the second right-angle plate, and are used as the scale marks 14.
The device can enable the laser displacement sensors to be uniformly and circumferentially arranged on the cutter, and can simultaneously clamp three laser displacement sensors. When the three sensor directions are set at the same angle and not 0 °, the three emitted laser rays 9 may converge at one point. All set at 0 deg. makes the three laser rays parallel to each other.
Regular triangular prism setting element 7 in this device is located the anchor clamps center, plays the positioning fixture effect, and it has three top surface assembly screw thread blind hole 23 to open on the top surface of regular triangular prism setting element 7 and the contact of anchor clamps ring flange 19, three top surface assembly screw thread blind hole center constitute a top surface regular triangle, top surface regular triangle center be located the axis of through-hole 8. The flange plate 19 and the regular triangular prism positioning piece 7 are fastened by utilizing the hexagon socket head cap bolts 21 to penetrate through three flange assembling through holes 22 on the clamp flange plate 19 and the top surface assembling thread blind holes 23 on the regular triangular prism positioning piece 7, the regular triangular prism positioning piece 7 can be fixed on the clamp flange plate, the clamp and the sensor can be installed on the flange of the tail end or the actuator of the robot by utilizing the fastening bolts to penetrate through the flange assembling through holes 20 on the clamp flange plate 19, and the three L-shaped fixing pieces 3 are respectively matched with three rectangular side walls of the regular triangular prism. So that the cutting tools are uniformly arranged around the cutting tools in the circumferential direction of 120 degrees. An angle adjusting mechanism 2 on each L-shaped fixing part 3 is used for conveniently adjusting the angle of the laser displacement sensor 1.
The installation and use method of the device comprises the following steps:
the assembled clamp and the laser displacement sensor can be mounted on the end of a robot or a flange of an actuator to be fastened by penetrating a fastening bolt through a flange assembly through hole 20 on a clamp flange plate 19, a cutter extends out of the through hole 8, and the axis of the cutter is overlapped with the axis 8 of the through hole, namely the axis of the cutter is on the axis of the through hole. At the moment, the laser displacement sensors are uniformly arranged at 120 degrees in the circumferential direction of the cutter, and laser rays 9 can be projected on the workpiece to carry out non-contact measurement on the surface of the workpiece. The arrangement angle of the sensor is selected according to the actual demand condition and the actual measurement range parameter of the sensor, the sensor does not need to be disassembled and assembled again during angle adjustment, and the angle adjustment screw 16 can drive the laser displacement sensor 1 to slide on the angle adjustment sliding groove 10 to adjust the angle only by clamping the sleeve 4 with fingers and pulling a certain distance towards the direction of the locknut. The appropriate angle can be selected according to the back graduation line 14 of the L-shaped fixing piece, and in the invention, 10 angles from 0 degree to 45 degrees can be adjusted by taking 5 degrees as a unit angle multiple increment. After sliding to the required angle, the finger is released, and the sleeve 4 will enter the angle adjustment positioning slot 11 and be fixed under the pressure of the spring 5. If the elasticity is not enough to fix, the locknut can be screwed again. The spring pressure is increased to clamp the laser displacement sensor to make it firm.
Claims (1)
1. The utility model provides a three laser displacement sensor anchor clamps of convenient angular adjustment which characterized in that: the device comprises a regular triangular prism positioning piece (7), wherein a through hole (8) is formed in the middle of the regular triangular prism positioning piece and is used for penetrating through a machining cutter to enable the machining cutter to extend out of the through hole; the through hole takes a central connecting line of the upper bottom surface and the lower bottom surface of the regular triangular prism positioning piece as a central axis, three assembling thread blind holes (18) are respectively formed in three rectangular side walls of the regular triangular prism positioning piece, the connecting line of the centers of the three assembling thread blind holes in each rectangular side wall forms an equilateral triangle, the centers of the equilateral triangles are positioned at the centers of two diagonal lines of the rectangular side walls, and the positions and the sizes of the assembling thread blind holes in the three rectangular side walls relative to the respective rectangular side walls are the same;
each rectangular side wall is respectively connected with an L-shaped fixing piece (3), a first right-angle plate of each L-shaped fixing piece is provided with mounting through holes (12) which are arranged in one-to-one correspondence with the positions of three mounting threaded blind holes (18) on the rectangular side wall, and the mounting threaded blind holes and the mounting through holes are fixedly connected through mounting hexagon socket head bolts (17) penetrating through the mounting threaded blind holes and the mounting through holes;
an arc angle adjusting sliding groove (10) is formed in one side of a second right-angle plate of each L-shaped fixing piece (3), a plurality of arc angle adjusting positioning grooves (11) are respectively and continuously formed in the positions of two arc side walls of the arc angle adjusting sliding grooves and on the rear wall of the second right-angle plate, which is far away from one side of the assembly thread blind hole, the central axis of each arc angle adjusting positioning groove is located on the central arc line of the arc angle adjusting sliding groove, the depth of each arc angle adjusting positioning groove is half of the thickness of the second right-angle plate, and the arc angle adjusting positioning grooves located on the two sides of the arc angle adjusting sliding grooves are symmetrically arranged relative to the central arc line of the arc angle adjusting sliding grooves; a sensor positioning hole (13) is formed in the other side of the second right-angle plate of each L-shaped fixing piece (3), a laser displacement sensor (1) is fixed on the second right-angle plate through a sensor positioning screw rod (15) which penetrates through the laser displacement sensor and the sensor positioning hole in the direction parallel to the first right-angle plate and a nut which is screwed on the end part of the sensor positioning screw rod (15) which penetrates through the second right-angle plate, and three laser rays emitted by the three laser displacement sensors can converge at one point;
the angle adjusting mechanism (2) comprises an angle adjusting screw rod (16) which passes through the laser displacement sensor (1) and the arc-shaped angle adjusting chute, a spring (5) is sleeved on the rod section at the side of the angle adjusting screw rod, which is contacted with the arc angle adjusting positioning groove, the end part of the angle adjusting screw rod at one side provided with the spring is connected with a locknut (6) through a thread, a sleeve (4) is sleeved outside the spring, the outer wall of the sleeve is provided with threads, one end of the spring (5) is fixedly connected with the inner wall of the sleeve, the other end close to the locknut is a movable end, the angle adjusting screw rod can move along the arc angle adjusting sliding groove (10) and clamp the sleeve (4) to be fixed at the arc angle adjusting positioning groove at the set position through the arc angle adjusting positioning groove (11);
the rear wall of the second right-angle plate is provided with scale marks (14), and the scale marks are all connecting lines of the center point of the sensor positioning hole (13) on the outer wall of the second right-angle plate and the center point of each angle adjusting positioning groove (11) on the outer wall of the second right-angle plate as scale marks;
it has three top surface assembly screw thread blind holes (23) to open on the top surface of regular triangular prism setting element (7) and anchor clamps ring flange (19) contact, three top surface assembly screw thread blind hole center constitute a top surface regular triangle, top surface regular triangle center be located the axis of through-hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188879.2A CN111409023B (en) | 2020-03-17 | 2020-03-17 | Three-laser displacement sensor clamp convenient for angle adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188879.2A CN111409023B (en) | 2020-03-17 | 2020-03-17 | Three-laser displacement sensor clamp convenient for angle adjustment |
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| Publication Number | Publication Date |
|---|---|
| CN111409023A CN111409023A (en) | 2020-07-14 |
| CN111409023B true CN111409023B (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010188879.2A Expired - Fee Related CN111409023B (en) | 2020-03-17 | 2020-03-17 | Three-laser displacement sensor clamp convenient for angle adjustment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113179714B (en) * | 2021-04-26 | 2022-08-12 | 农业农村部南京农业机械化研究所 | Airflow auxiliary type precision seeder |
| CN113170635A (en) * | 2021-04-26 | 2021-07-27 | 农业农村部南京农业机械化研究所 | Structure and seeder are adjusted in adaptation of seeder |
| CN113179711B (en) * | 2021-04-26 | 2022-08-12 | 农业农村部南京农业机械化研究所 | Positive pressure seeder is with ditching earthing device of pressing kind |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002321008A (en) * | 2001-04-27 | 2002-11-05 | Totoku Electric Co Ltd | Wire drawing machine with die direction indicating function |
| CN104002051B (en) * | 2014-06-03 | 2015-10-28 | 湖南大学 | A kind of vertical detection device for laser weld and detection method |
| CN104613897B (en) * | 2015-02-12 | 2017-10-13 | 哈尔滨理工大学 | The adaptively sampled device of vehicle exterior cladding element mold freedom curved surface and measuring method |
| CN105783722B (en) * | 2016-04-12 | 2018-04-06 | 南京航空航天大学 | A kind of range sensor method arrow measuring method based on tetrahedral configuration |
| CN207556801U (en) * | 2017-08-22 | 2018-06-29 | 北京兆维智能装备有限公司 | A kind of display screen detection device |
| CN107941153B (en) * | 2017-12-29 | 2020-04-10 | 厦门大学 | Visual system for optimizing calibration of laser ranging |
| CN209698440U (en) * | 2019-04-03 | 2019-11-29 | 哈尔滨新智达自动化成套装备有限公司 | Multi-functional automatic punching device |
| CN110779909A (en) * | 2019-12-13 | 2020-02-11 | 平顶山学院 | Portable LIBS composition analyzer |
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