CN203494949U - Frame curve shape measuring device - Google Patents
Frame curve shape measuring device Download PDFInfo
- Publication number
- CN203494949U CN203494949U CN201320462152.4U CN201320462152U CN203494949U CN 203494949 U CN203494949 U CN 203494949U CN 201320462152 U CN201320462152 U CN 201320462152U CN 203494949 U CN203494949 U CN 203494949U
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- target
- rib
- curve shape
- main shaft
- range finder
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Abstract
The utility model discloses a frame curve shape measuring device, relating to the technical field of hull building. The frame curve shape measuring device comprises a target mounted on a frame chuck of a numerical control cold frame bending machine, and a tracking measurer targeting the target is mounted on the numerical control cold frame bending machine; the target is provided with a laser and a cat eye inverter; the tracking measurer comprises a laser range finder, an angle coder, a photoelectric detector aimed at a light beam emitting point of the laser and a rotation unit for driving the laser range finder, the angle coder and the photoelectric detector to rotate; the cat eye inverter reflects the light beam of the laser range finder; the laser range finder receives the reflected light beam. Compared with the prior art, the device disclosed by the utility model solves the problems that the forming quality and forming precision of the frame line type are hard to guarantee by a steel wire chord measuring device adopted by the existing numerical control cold frame bending machine, the detection efficiency is relatively low and the like.
Description
Technical field
The utility model relates to hull construction technical field, especially a kind of device of measuring rib curve shape parameter in hull frame Cold Bending that is applied in.
Background technology
Because rib curve shape is two-dimentional, referring to Fig. 1, arbitrfary point on plane curve
can use
represent, wherein
it is curve initial point
to arbitrfary point
chord length,
it is arbitrfary point
string of a musical instrument angle when crooked
, therefore use
also just can represent the curve shape of rib.
Existing hull digital controlled rib cold bent machine adds man-hour to rib, conventionally adopts advanceable processing mode piecemeal, along with the sending to of rib, and the head end of the rib (initial point that is equivalent to plane curve
) constantly change in the plane, and the epicostal clod wash point (arbitrfary point that is equivalent to plane curve
) restriction of being processed pressure head fixes, therefore existing hull digital controlled rib cold bent machine is measured and is normally adopted string of a musical instrument mensuration rib, adopts steel wire to drive the string of a musical instrument length of two groups of photodetectors to rib
string of a musical instrument angle during with bending
measure.Because steel wire is exposed in air, the impact that steel wire is expanded with heat and contract with cold can produce loosening, and steel wire can produce wearing and tearing and damage in constantly shifting out process, generally, steel wire work will be ruptured about half a year, thereby affect the normal work of machine, therefore the steel wire string of a musical instrument measurement mechanism of existing digital controlled rib cold bent machine is difficult to guarantee Forming Quality and the formed precision of rib line style, and its detection efficiency is lower.
Utility model content
The purpose of this utility model is to provide a kind of rib curve shape measurement mechanism, and it can realize quick, the accurate automatic tracing and measuring of rib curve shape in hull frame Cold Bending.
In order to address the above problem, the technical scheme that the utility model adopts is: this rib curve shape measurement mechanism, include a target on the rib chuck that is arranged on digital controlled rib cold bent machine, at the pressure head place of described digital controlled rib cold bent machine, be provided with and take the tracking measurement device that described target is target; On described target, be provided with the converse device of laser instrument and opal, the turning unit that described tracking measurement device comprises the photodetector of laser range finder, angular encoder, the described laser beam launch point of aiming and drives described laser range finder, described angular encoder and described photodetector to rotate, the outbound course of described laser range finder light beam points to the converse device of described opal, and the reverberation direction of the converse device of described opal is aimed at described laser range finder.
In technique scheme, technical scheme can also be more specifically: described turning unit comprises the main shaft that arranged by motor-driven setting, is sleeved on the axle sleeve outside described main shaft and is arranged on the angular contact ball bearing on described main shaft, on described main shaft, between described two cover angular contact ball bearings, be set with a bearing spacer, conflicting with the inner ring of the described angular contact bearing of two covers respectively in the two ends of described bearing spacer, is provided with for eliminating the locking nut of the described angular contact ball bearing play of two covers in the lower end of described main shaft.
Further: described axle sleeve is connected and fixed by gusset piece and described digital controlled rib cold bent machine.
Further: described motor is the stepper motor with decelerator, the bottom of described main shaft offers the endoporus for the output shaft interference fits with the described stepper motor with decelerator, and described main shaft connects with described output shaft by key.
Further: described photodetector includes the microscope base of a square frame-shaped and is arranged on optical lens group and the ccd image sensor on the central shaft of described microscope base, described ccd image sensor is arranged on the focal plane of optical lens group, and the bottom of described microscope base is fixedly connected with the top of described main shaft.
Further: on an end opening of the microscope base of described square frame-shaped, to be fixed with a front shroud that is provided with through hole, in the outside of described front shroud, there is a front picture frame to be connected with described through hole, in the inner side of described front shroud, be fixed with a rear mirror frame, described optical lens group is fixed between described front picture frame and described rear mirror frame.
Further: the top of described microscope base is fixed with retainer, described laser range finder is arranged in described retainer by rangefinder screw lock, and described retainer is fixed on described microscope base.
Further: described angular encoder is absolute angle coder, described absolute angle coder comprises the angular coding dish that is sleeved on described main shaft top, described angular coding dish adopts circle grating disc, is provided with the read head of described angular coding dish on described axle sleeve.
Further: described target is provided with and is connected target base with described rib chuck and is installed on the target body on described target base, described laser instrument is placed in described target body, the converse device of described opal is contained in described target body top, on described target body top, in the both sides of the converse device of described opal, be provided with a pair of micrometer adjusting screw, the converse device of described opal outside is covered with target cover.
Owing to adopting technique scheme, the utility model compared with prior art has following beneficial effect:
1, the utility model measurement space is large, and measurement category is wide, and in rib feeding Cold Bending, the aiming point of photodetector can arrive the arbitrfary point of rib outer end, does not measure blind spot.
2, compatibility of the present utility model is better, and mounting means is simple, without existing forming mill is done to any change, reduces improvement cost.
3, the utility model is owing to adopting absolute angle coder, and without small change, start can be measured, and measuring speed is fast.
4, the utility model accuracy of detection is high, reproducible, functional reliability is high.
5. the utility model adopts non contact measurement, and response is fast, without lagging behind.
Accompanying drawing explanation
Fig. 1 is the Mathematical Modeling that plane curve represents.
Fig. 2 is the structural scheme of mechanism of tracking measurement device of the present utility model.
Fig. 3 is photodetector structure schematic diagram of the present utility model.
Fig. 4 is target structure front view of the present utility model.
Fig. 5 is the right view of Fig. 4.
Fig. 6 is scheme of installation of the present utility model.
Number in the figure: 1. with the stepper motor of decelerator; 2. digital controlled rib cold bent machine; 3. gusset piece; 4. bearing (ball) cover; 5. locking nut; 6. axle sleeve; 7. main shaft; 8. bearing spacer; 9. angular contact ball bearing; 10. dust cap; 11. angular coding dishes; 12. read heads; 13. read head screws; 14. retainers; 15. laser range finders; 16. rangefinder screws; 17. decelerator screws; 18. keys; 19. gusset piece screws; 20. bearing (ball) cover screws; 21. axle sleeve screws; 22. angular coding valve snail nails; 23. microscope base screws; 24. retainer screws; 25. optical lens group; 26. front picture frames; 27. front shrouds; 28. front shroud screws; 29. rear mirror frames; 30.CCD fixed mount screw; 31.CCD imageing sensor; 32.CCD fixed mount; 33. microscope bases; 34.CCD drive circuit board; 35. back shroud screws; 36. back shrouds; 37. rib chucks; 38. target base screws; 39. target bases; 40. laser power supply screws; 41. laser power supplies; 42. target body screws; 43. target bodies; 44. laser instruments; The converse device screw of 45. opal; The converse device of 46. opal; 47. target covers; 48. micrometer adjusting screws; 49. main guide rails; 50. sliding machines; 51. slide blocks; 52. Horizontal shifting platforms; 53. targets; 54. tracking measurement devices; 55. pressure heads; 56. ribs; 57. first processing chucks; 58. second processing chucks.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 2, this rib curve shape measurement mechanism shown in Fig. 3, Fig. 4 and Fig. 5, includes a target on the rib chuck 37 that is arranged on digital controlled rib cold bent machine 2, is provided with to take the tracking measurement device that this target is target on digital controlled rib cold bent machine 2 workbench; On target, be provided with the converse device 46 of laser instrument 44 and opal, the turning unit that tracking measurement device comprises angular encoder, photodetector, laser range finder 15 and drives angular encoder, photodetector and laser range finder 15 to rotate; Photodetector is for the beam emissions point of tracking aiming laser instrument 44, and the converse device 46 of opal reflects the light beam of laser range finders 15, and by laser range finder 15, is received the light beam of these reflections.
Turning unit as shown in Figure 2 includes the main shaft 7 that arranged by motor-driven setting, is sleeved on the axle sleeve 6 outside main shaft 7 and is arranged on the cover of two on main shaft 7 angular contact ball bearing 9, on main shaft 7, between two cover angular contact ball bearings 9, be set with a bearing spacer 8, conflict with the inner ring of two cover angular contact bearings 9 respectively in the two ends of bearing spacer 8, in the lower end of main shaft 7, be provided with locking nut 5, this locking nut 5 is for eliminating two cover angular contact ball bearing 9 play, improving the rotating accuracy of axle system; On locking nut 5, be set with the bearing (ball) cover 4 being connected and fixed on axle sleeve 6, bearing (ball) cover 4 is fixed on axle sleeve 6 by being pumped into end cap screw 20.Motor in the present embodiment is the stepper motor 1 with decelerator, and the bottom of main shaft 7 offers the endoporus for the output shaft interference fits with motor, and main shaft 7 connects with the output shaft of motor by key 18.During installation, with the stepper motor 1 of decelerator, by decelerator screw 17, be fixed on gusset piece 3, axle sleeve 6 is fixed on gusset piece 3 by axle sleeve screw 21, and gusset piece 3 is fixed on digital controlled rib cold bent machine 2 by gusset piece screw 19.
The angular encoder of the present embodiment is absolute angle coder, absolute angle coder comprises the angular coding dish 11 that is sleeved on main shaft 7 tops, angular coding dish 11 is connected and fixed with main shaft 7 by angular coding valve snail nail 22, angular coding dish 11 adopts circle grating disc, on axle sleeve 6, be provided with the read head 12 of angular coding dish 11, read head 12 is fixed on axle sleeve 6 tops by read head screw 13; Top at axle sleeve 6 is also provided with dust cap 10.
Photodetector shown in Fig. 3 includes the microscope base 33 of a square frame-shaped and is arranged on the optical lens group 25 on the central shaft of microscope base 33, ccd image sensor 31 is set on the focal plane of optical lens group 25, ccd image sensor 31 is installed on CCD fixed mount 32, and CCD fixed mount 32 is fixed on microscope base 33 by CCD fixed mount screw 30; Photodetector is arranged at the top of angular encoder, and the microscope base 33 of photodetector is connected in the top of main shaft 7 by microscope base screw 23.On an end opening of microscope base 33, be fixed with a front shroud 27 that is provided with through hole, in the outside of front shroud 27, there is a front picture frame 26 to be connected with through hole, in the inner side of front shroud 27, be fixed with a rear mirror frame 29, optical lens group 25 is fixed between front picture frame 26 and rear mirror frame 29, front picture frame 26 thread connection are on front shroud 27, and front shroud 27 is fixed on the outer end of microscope base 33 by front shroud screw 28; CCD drive circuit board is installed in microscope base 33, at the other end opening of microscope base 33, by back shroud screw 35, is fixedly connected with back shroud 36.
Laser range finder 15 is arranged in retainer 14, and by 16 lockings of rangefinder screw.Retainer 14 is fixed on the microscope base 33 of photodetector by retainer screw 24.
Target shown in Fig. 4 and Fig. 5 is provided with target base 39 and target body 43, target body 43 is fixed on target base 39 by target body screw 42, target base 39 is mounted on rib chuck 37 by target base screw 38, commercially available laser instrument 44 and laser power supply 41 are set on target base 39, laser instrument 44 and laser power supply 41 are placed in target body 43, on the wall body of target body 43, offer for penetrating the through hole of laser instrument 44 light beams, laser power supply 41 is fixed on target base top by laser power supply screw 40; On target body 43 tops, by the converse device screw 45 of opal, be installed with the converse device 46 of commercially available opal, in the bottom of the converse device 46 of opal and perpendicular to the both sides of its optical axis direction, be provided with a pair of micrometer adjusting screw 48, by the radiai adjustment of micrometer adjusting screw 48, can guarantee that the axial line of the converse device 46 of opal overlaps with the axial line of laser range finder 15 Emission Lasers.In the converse device of opal 46 outsides, be covered with target cover 47, on the wall body of target cover 47, be provided with opening with the corresponding position of the converse device 46 of opal.
What this rib form measuring instrument was measured employing is string of a musical instrument mensuration, its parameter output format is consistent with existing steel wire string of a musical instrument measuring system, adopt non contact measurement to substitute steel wire, as shown in Figure 6, target 53 is arranged on for clamping the rib chuck 37 of the head end of rib 56, the converse device 46 of opal of target 53 aligns with the head end of rib 56, rib chuck 37 is fixed on the sliding machine 50 being slidably connected with Horizontal shifting platform 52, the two ends of Horizontal shifting platform 52 are slidably connected by slide block 51 and main guide rail 49, the moving direction of the moving direction of sliding machine 50 and Horizontal shifting platform 52 is perpendicular, tracking measurement device 54 is installed on pressure head 55 places of digital control cold bending machine workbench, during installation, the laser range finder 15 of tracking measurement device 54 and the converse device 46 of the opal of target 53 are arranged in opposite directions, regulate micrometer adjusting screw 48 that the axial line of laser range finder 15 and the axial line of the converse device 46 of opal are overlapped, and make the clod wash point of the laser emission point alignment rib 56 in laser range finder 15
, this laser emission point and clod wash point
line parallel with the moving direction of sliding machine 50.Add man-hour, feed arrangement by digital controlled rib cold bent machine is feeding rib 56 to be processed piecemeal, by pressure head 55, the first processing chuck 57 and the second rib section bending forming of processing between chuck 58 will be held on, in BENDING PROCESS, by the head end of measurement mechanism automatic tracing and measuring rib of the present utility model, arrive the chord length chord wire clamp angle of epicostal clod wash point, measurement data is fed back to computer to improve Forming Quality and formed precision.The measuring process of this rib curve shape measurement mechanism is as follows: when the beam axis sight of the optical lens group 25 of photodetector is during to the laser instrument 44 of target, the outbound course of laser range finder 15 light beams points to the converse device 46 of opal, the reverberation direction of the converse device 46 of opal is aimed at laser range finder 15, the laser projection of the laser instrument 44 of target is to the optical lens group 25 of photodetector, through optical lens group 25, focus on the center of ccd image sensor 31, ccd image sensor 31 changes optical signal into the signal of telecommunication, send into computer, along with processing is carried out, the head end of rib 56 can be with the target 53 being together fixed on rib chuck 37, along Horizontal shifting platform 52, main guide rail 49 direction motions, the image spaces of the luminous point that the laser instrument 44 of target 53 sends on ccd image sensor 31 can be offset, computer calculates this deviation value, and the stepper motor 1 stepping revolution of sending pulse signal rotating band decelerator, realize and following the tracks of, after following the tracks of each time successfully, computer system can the measured axle of synchronous acquisition circle grating angular encoder be the reading of angle of revolution and laser range finder 15, above-said current signal triggers laser range finder 15 and sends laser, after converse device 46 reflections of opal, by laser range finder 15, received again, the time that laser range finder 15 recording lasers are round, the light velocity and two-way time product half, being exactly that laser range finder 15 arrives by the distance of the converse device 46 of opal, is also the string of a musical instrument length of clod wash point
, the angle that now main shaft 7 drives angular coding dish 11 to turn over is read by read head 12, is clod wash point
string of a musical instrument angle
, along with the feeding piecemeal of rib 56, constantly read rib 56 each clod wash points
, realize to curve shape automatic tracing and measuring, until whole root bone 56 machines.
Claims (9)
1. a rib curve shape measurement mechanism, it is characterized in that: include a target (53) on the rib chuck (37) that is arranged on digital controlled rib cold bent machine (2), at the pressure head (55) of described digital controlled rib cold bent machine (2), locate to be provided with and take the tracking measurement device (54) that described target (53) is target; On described target (53), be provided with laser instrument (44) and the converse device of opal (46), the turning unit that described tracking measurement device (54) comprises the photodetector of laser range finder (15), angular encoder, the described laser instrument of aiming (44) beam emissions point and drives described laser range finder (15), described angular encoder and described photodetector to rotate, the outbound course of described laser range finder (15) light beam points to the converse device of described opal (46), and the reverberation direction of the converse device of described opal (46) is aimed at described laser range finder (15).
2. rib curve shape measurement mechanism according to claim 1, it is characterized in that: described turning unit comprises the main shaft (7) being arranged by motor-driven setting, be sleeved on the outer axle sleeve (6) of described main shaft (7) and be arranged on the cover of two on described main shaft (7) angular contact ball bearing (9), at described main shaft (7), above between described two cover angular contact ball bearings (9), be set with a bearing spacer (8), conflict with the inner ring of the described angular contact bearing of two covers (9) respectively in the two ends of described bearing spacer (8), in the lower end of described main shaft (7), be provided with for eliminating the locking nut (5) of the described angular contact ball bearing of two covers (9) play.
3. rib curve shape measurement mechanism according to claim 2, is characterized in that: described axle sleeve (6) is connected and fixed by gusset piece (3) and described digital controlled rib cold bent machine (2).
4. according to the rib curve shape measurement mechanism described in claim 2 or 3, it is characterized in that: described motor is the stepper motor (1) with decelerator, the bottom of described main shaft (7) offers the endoporus for the output shaft interference fits with the described stepper motor with decelerator (1), and described main shaft (7) connects with described output shaft by key (18).
5. rib curve shape measurement mechanism according to claim 1, it is characterized in that: described photodetector includes the microscope base (33) of a square frame-shaped and is arranged on optical lens group (25) and the ccd image sensor (31) on the central shaft of described microscope base (33), described ccd image sensor (31) is arranged on the focal plane of optical lens group (25), and the bottom of described microscope base (33) is fixedly connected with the top of described main shaft (7).
6. rib curve shape measurement mechanism according to claim 5, it is characterized in that: on an end opening of the microscope base (33) of described square frame-shaped, be fixed with a front shroud (27) that is provided with through hole, in the outside of described front shroud (27), there is a front picture frame (26) to be connected with described through hole, in the inner side of described front shroud (27), be fixed with a rear mirror frame (29), described optical lens group (25) is fixed between described front picture frame (26) and described rear mirror frame (29).
7. according to the rib curve shape measurement mechanism described in claim 5 or 6, it is characterized in that: the top of described microscope base (33) is fixed with retainer (14), described laser range finder (15) is arranged in described retainer (14) by rangefinder screw (16) locking, and described retainer (14) is fixed on described microscope base (33).
8. rib curve shape measurement mechanism according to claim 1, it is characterized in that: described angular encoder is absolute angle coder, described absolute angle coder comprises the angular coding dish (11) that is sleeved on described main shaft (7) top, described angular coding dish (11) adopts circle grating disc, is provided with the read head (12) of described angular coding dish (11) on described axle sleeve (6).
9. rib curve shape measurement mechanism according to claim 1, it is characterized in that: described target (53) is provided with and is connected target base (39) with described rib chuck (37) and is installed on the target body (43) on described target base (39), described laser instrument (44) is placed in described target body (43), the converse device of described opal (46) is contained in described target body (43) top, on described target body (43) top, in the both sides of the converse device of described opal (46), be provided with a pair of micrometer adjusting screw (48), the converse device of described opal (46) outside is covered with target cover (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462152.4U CN203494949U (en) | 2013-07-31 | 2013-07-31 | Frame curve shape measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320462152.4U CN203494949U (en) | 2013-07-31 | 2013-07-31 | Frame curve shape measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203494949U true CN203494949U (en) | 2014-03-26 |
Family
ID=50325956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320462152.4U Withdrawn - After Issue CN203494949U (en) | 2013-07-31 | 2013-07-31 | Frame curve shape measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203494949U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357705A (en) * | 2013-07-31 | 2013-10-23 | 柳州如洋精密科技有限公司 | Measurement device for curve shape of frame |
| CN104353702A (en) * | 2014-10-17 | 2015-02-18 | 浙江森旺金属制品有限公司 | Online steel wire winding detection device |
| CN104848815A (en) * | 2015-05-14 | 2015-08-19 | 广西梧州运龙港船机械制造有限公司 | Processing detection method of hull frame |
| CN104859790A (en) * | 2015-05-14 | 2015-08-26 | 广西梧州运龙港船机械制造有限公司 | Boat body rib installing detection device |
| CN104998940A (en) * | 2015-05-14 | 2015-10-28 | 广西梧州运龙港船机械制造有限公司 | Hull frame machining and detecting device |
| CN105136025A (en) * | 2015-05-14 | 2015-12-09 | 广西梧州运龙港船机械制造有限公司 | Hull frame mounting detection method |
-
2013
- 2013-07-31 CN CN201320462152.4U patent/CN203494949U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357705A (en) * | 2013-07-31 | 2013-10-23 | 柳州如洋精密科技有限公司 | Measurement device for curve shape of frame |
| CN104353702A (en) * | 2014-10-17 | 2015-02-18 | 浙江森旺金属制品有限公司 | Online steel wire winding detection device |
| CN104353702B (en) * | 2014-10-17 | 2016-04-20 | 浙江森旺金属制品有限公司 | Winding steel wire on-line measuring device |
| CN104848815A (en) * | 2015-05-14 | 2015-08-19 | 广西梧州运龙港船机械制造有限公司 | Processing detection method of hull frame |
| CN104859790A (en) * | 2015-05-14 | 2015-08-26 | 广西梧州运龙港船机械制造有限公司 | Boat body rib installing detection device |
| CN104998940A (en) * | 2015-05-14 | 2015-10-28 | 广西梧州运龙港船机械制造有限公司 | Hull frame machining and detecting device |
| CN105136025A (en) * | 2015-05-14 | 2015-12-09 | 广西梧州运龙港船机械制造有限公司 | Hull frame mounting detection method |
| CN104848815B (en) * | 2015-05-14 | 2018-09-28 | 广西梧州运龙港船机械制造有限公司 | Hull frame machining and testing method |
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