CN113847899A - Two-dimensional straightness detecting and straightening device of rolling linear guide rail - Google Patents
Two-dimensional straightness detecting and straightening device of rolling linear guide rail Download PDFInfo
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- CN113847899A CN113847899A CN202110891157.8A CN202110891157A CN113847899A CN 113847899 A CN113847899 A CN 113847899A CN 202110891157 A CN202110891157 A CN 202110891157A CN 113847899 A CN113847899 A CN 113847899A
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- linear guide
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- 238000005096 rolling process Methods 0.000 title claims abstract description 60
- 238000006073 displacement reaction Methods 0.000 claims abstract description 67
- 238000005259 measurement Methods 0.000 abstract description 17
- 238000005452 bending Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention discloses a two-dimensional straightness detecting and straightening device of a rolling linear guide rail, which comprises a guide rail conveying device, and a straightness detecting device and a straightening device which are arranged on the guide rail conveying device, wherein the straightness detecting device comprises a front displacement measuring group and a rear displacement measuring group, and the front displacement measuring group and the rear displacement measuring group are respectively arranged on the front side and the rear side of the straightening device. The invention controls the forward feeding servo motor, the backward feeding servo motor, the vertical displacement sensor, the horizontal displacement sensor, the front anvil support block servo motor, the rear anvil support block servo motor, the horizontal pressure head servo electric cylinder and the vertical pressure head servo electric cylinder through the PLC, thereby realizing the automatic feeding of the rolling linear guide rail, analyzing and automatically straightening according to the data measured by the front displacement measurement group and the rear displacement measurement group, further realizing the automatic straightening of the rolling linear guide rail and improving the efficiency.
Description
Technical Field
The invention relates to a two-dimensional straightness detection and straightening device for a rolling linear guide rail.
Background
The linear guide rail can be divided into a roller linear guide rail, a cylindrical linear guide rail and a ball linear guide rail, is used for supporting and guiding a moving part and makes reciprocating linear motion in a given direction. The rolling linear guide rail needs to achieve good straightness during production, and the existing equipment has the following defects during manufacturing of the rolling linear guide rail: 1. the existing equipment measures the straightness of the guide rail through a manual feeler gauge, and the working efficiency is low; 2. the existing equipment does not integrate the guide rail detection and straightening together, so that the working efficiency is low; 3. the two-dimensional straightening of the guide rail can be realized only by turning over the guide rail by the conventional equipment, and the working efficiency is low.
Disclosure of Invention
Aiming at the problems, the invention provides a two-dimensional straightness detection and straightening device of a rolling linear guide rail, which effectively solves the problems pointed out in the background technology.
The technical scheme adopted by the invention is as follows:
the two-dimensional linearity detecting and straightening device for the rolling linear guide rail comprises a guide rail conveying device, and a linearity detecting device and a straightening device which are arranged on the guide rail conveying device, wherein the linearity detecting device comprises a front displacement measuring group and a rear displacement measuring group, and the front displacement measuring group and the rear displacement measuring group are respectively arranged on the front side and the rear side of the straightening device.
Preferably, the guide rail conveying device comprises a front conveying table, a rear conveying table and a row of rollers arranged along the front conveying table and the rear conveying table, the front conveying table is provided with a front feeding servo motor on the roller close to the straightening device, and the rear conveying table is provided with a rear feeding servo motor on the roller close to the straightening device.
The front conveying table and the rear conveying table realize automatic feeding of the rolling linear guide rail by feeding forward to the servo motor and feeding backward to the servo motor, and feed back corner signals which are fed forward to the servo motor and fed backward to the servo motor for detecting the straightness of the rolling linear guide rail.
Preferably, a front support adjusting mechanism is arranged at the rear end of the front conveying table, and a rear support adjusting mechanism is arranged at the front end of the rear conveying table.
Preferably, the front support adjustment mechanism includes a front anvil block seat and a front anvil block sliding back and forth along the front anvil block seat, and the rear support adjustment mechanism includes a rear anvil block seat and a rear anvil block sliding back and forth along the rear anvil block seat.
Preferably, the rear end of the front conveying table is provided with a front anvil block servo motor for driving the front anvil block to slide back and forth along the front anvil block seat, and the front end of the rear conveying table is provided with a rear anvil block servo motor for driving the rear anvil block to slide back and forth along the rear anvil block seat.
The positions of the front anvil supporting block and the rear anvil supporting block are respectively controlled by the front anvil supporting block servo motor and the rear anvil supporting block servo motor, so that a proper supporting point is provided for straightening, and high-precision straightening is realized.
Preferably, the front displacement measurement group comprises a mounting seat fixed on the front conveying table, and a vertical displacement sensor and a horizontal displacement sensor arranged on the mounting seat, and the rear displacement measurement group comprises a mounting seat fixed on the rear conveying table, and a vertical displacement sensor and a horizontal displacement sensor arranged on the mounting seat.
And the straightness of the rolling linear guide rail is detected in real time through the front displacement measurement group and is used for analyzing and calculating straightening process parameters, the straightness of the corrected rolling linear guide rail is rechecked in real time through the rear displacement measurement group, if the straightness reaches the expected straightening precision, the rolling linear guide rail is continuously fed for subsequent straightening, and if the straightness does not reach the expected straightening precision, the rolling linear guide rail is reversely fed for straightening again until the expected straightening precision is reached.
Preferably, the straightening device comprises a frame, and a horizontal pressure head and a vertical pressure head are arranged on a station of the frame.
The horizontal pressure head and the vertical pressure head realize two-dimensional straightening of the rolling linear guide rail, and the rolling linear guide rail does not need to be turned over, so that the efficiency is greatly improved.
Preferably, a horizontal pressure head servo electric cylinder for driving the horizontal pressure head to move in the horizontal direction and a vertical pressure head servo electric cylinder for driving the vertical pressure head to move in the vertical direction are arranged on the frame.
The horizontal pressure head is controlled by the horizontal pressure head servo electric cylinder to straighten the rolling linear guide rail in the horizontal direction, and the vertical pressure head servo electric cylinder controls the vertical pressure head to straighten the rolling linear guide rail in the vertical direction.
Preferably, the forward feeding servo motor, the backward feeding servo motor, the vertical displacement sensor, the horizontal displacement sensor, the front anvil support block servo motor, the rear anvil support block servo motor, the horizontal pressure head servo electric cylinder and the vertical pressure head servo electric cylinder are all electrically connected with a PLC controller.
The PLC is used for controlling the forward feeding servo motor, the backward feeding servo motor, the vertical displacement sensor, the horizontal displacement sensor, the front anvil supporting block servo motor, the rear anvil supporting block servo motor, the horizontal pressure head servo electric cylinder and the vertical pressure head servo electric cylinder, so that the automatic feeding of the rolling linear guide rail is realized, the analysis and the automatic straightening are performed according to the data measured by the front displacement measurement group and the rear displacement measurement group, the automatic straightening of the rolling linear guide rail is realized, and the efficiency is improved.
The invention has the beneficial effects that:
1. the bending conditions of the rolling linear guide rail moving along with the front and rear conveying tables in horizontal and vertical planes are measured in real time through a front displacement measuring group and a front and rear feeding servo motor, the straightening process parameters are calculated by using an error separation technology according to the actually measured bending curve of the rolling linear guide rail, the geometric shape of the section of the guide rail and the material characteristics, and the positions of the front and rear anvil supporting blocks and the loads and strokes of a horizontal pressure head and a vertical pressure head are controlled according to the calculation result, so that the two-dimensional pressure reverse bending precision straightening of the rolling linear guide rail is realized;
2. and the back displacement measurement group and the front and back displacement measurement groups are used for feeding the servo motor, retesting the straightness of the rolling linear guide rail, judging whether the rolling linear guide rail reaches the expected straightening precision, and performing retesting and retesting on the straightness of the rolling linear guide rail which does not reach the standard until the rolling linear guide rail reaches the expected straightening precision, so that the detection and the straightening of the full-length straightness of the rolling linear guide rail are realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the forward feed servo motor;
FIG. 3 is a schematic diagram of the front displacement measurement group;
FIG. 4 is a two-dimensional curved line of a rolling linear guide rail;
FIG. 5 is a schematic diagram of the pressure straightening of an asymmetric curved rolling linear guide.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Example 1
As shown in fig. 1-3, a two-dimensional linearity detecting and straightening device for a rolling linear guide rail comprises a guide rail conveying device, and a linearity detecting device and a straightening device 3 which are arranged on the guide rail conveying device, wherein the linearity detecting device comprises a front displacement measuring group 1 and a rear displacement measuring group 2, and the front displacement measuring group 1 and the rear displacement measuring group 2 are respectively arranged at the front side and the rear side of the straightening device 3.
The guide rail conveying device comprises a front conveying table 4, a rear conveying table 5 and a row of rollers 6 arranged along the front conveying table 4 and the rear conveying table 5, wherein a front feeding servo motor 7 is arranged on the roller 6 close to the straightening device 3 of the front conveying table 4, a rear feeding servo motor 8 is arranged on the roller 6 close to the straightening device 3 of the rear conveying table 5, and the front feeding servo motor 7 and the rear feeding servo motor 8 are connected with the roller 6 through couplers.
The rear end of the front conveying platform 4 is provided with a front support adjusting mechanism, and the front end of the rear conveying platform 5 is provided with a rear support adjusting mechanism.
Preceding supporting adjustment mechanism include preceding hammering block piece seat 9 to and along preceding hammering block piece seat 9 fore-and-aft gliding preceding hammering block piece 10, back supporting adjustment mechanism include back hammering block piece seat 11, and along back hammering block piece seat 11 fore-and-aft gliding back hammering block piece 12, all be equipped with the guide rail hole on preceding hammering block piece 10 and the back hammering block piece 12, the shape phase-match of guide rail hole and roll linear guide can fix a position roll linear guide in perpendicular roll linear guide's plane.
The rear end of the front conveying table 4 is provided with a front anvil block servo motor 13 for driving the front anvil block 10 to slide back and forth along the front anvil block seat 9, and the front end of the rear conveying table 5 is provided with a rear anvil block servo motor 14 for driving the rear anvil block 12 to slide back and forth along the rear anvil block seat 11.
Preceding displacement measurement group 1 including fixing mount pad 15 on preceding transport platform 4 to and vertical displacement sensor 16 and the horizontal displacement sensor 17 of setting on mount pad 15, back displacement measurement group 2 including fixing mount pad 15 on back transport platform 5 to and set up vertical displacement sensor 16 and the horizontal displacement sensor 17 on mount pad 15, mount pad 15 is the L type of invering, the top of mount pad 15 is fixed with the vertical displacement sensor 16 of three equidistance distribution, the lateral part is fixed with the horizontal displacement sensor 17 of three equidistance distribution, vertical displacement sensor 16 and horizontal displacement sensor 17 all adopt contact high accuracy displacement sensor.
Straightening device 3 include frame 31, be equipped with horizontal pressure head 32 and vertical pressure head 33 on the station of frame 31, horizontal pressure head 32 and vertical pressure head 33 all are the U type, the opening of horizontal pressure head 32 is vertical up, the opening level orientation of vertical pressure head 33.
The frame 31 is provided with a horizontal ram servo electric cylinder 34 for driving the horizontal ram 32 to move in the horizontal direction, and a vertical ram servo electric cylinder 35 for driving the vertical ram 33 to move in the vertical direction.
The forward feeding servo motor 7, the backward feeding servo motor 8, the vertical displacement sensor 16, the horizontal displacement sensor 17, the front anvil support block servo motor 13, the rear anvil support block servo motor 14, the horizontal pressure head servo electric cylinder 34 and the vertical pressure head servo electric cylinder 35 are all electrically connected with a PLC 18.
The rolling linear guide rail passes through the front anvil supporting block 10 from the front conveying table 4 and then enters a station of the straightening device 3, then passes through the rear anvil supporting block 12 and then leaves the station and enters the rear conveying table 5, and when the straightening operation is carried out, the specific working principle is as follows:
1. the PLC controller 18 controls the front feeding servo motor 7 and the rear feeding servo motor 8 to drive the corresponding roller 6, the roller 6 drives the rolling linear guide rail arranged on the roller 6 to feed, corner signals of the front feeding servo motor 7 and the rear feeding servo motor 8 are transmitted to the PLC controller 18, the front displacement measurement group 1 detects the straightness of the rolling linear guide rail through a vertical displacement sensor 16 and a horizontal displacement sensor 17 of the front displacement measurement group and transmits the detected information to the PLC controller 18 during feeding, and the PLC controller 18 calculates a two-dimensional bending curve of the rolling linear guide rail in real time by adopting an error separation technology according to the received information, as shown in FIG. 4;
2. when the PLC 18 detects that the straightness of the rolling linear guide rail exceeds the standard, the front feeding servo motor 7 and the rear feeding servo motor 8 are controlled to stop feeding, and meanwhile, the PLC 18 calculates straightening process parameters including the positions of the front anvil support block 10 and the rear anvil support block 12 and the loads and strokes of the vertical pressure head 33 and the horizontal pressure head 32 according to the cross section geometric shape and the material characteristics of the rolling linear guide rail;
3. the PLC 18 respectively controls the front anvil supporting block 10 and the rear anvil supporting block 12 to reach preset positions through the front anvil supporting block servo motor 13 and the rear anvil supporting block servo motor 14, and respectively controls the horizontal pressure head 32 and/or the vertical pressure head 33 to perform reverse bending and straightening through the horizontal pressure head servo electric cylinder 34 and/or the vertical pressure head servo electric cylinder 35;
4. after the rolling linear guide rail is straightened, the PLC 18 feeds the servo motor 8 continuously through the front feeding servo motor 7 and the rear feeding servo motor, corner signals which are fed to the servo motor 7 and the servo motor 8 are transmitted to the PLC 18, the rear displacement measurement group 2 detects the straightness of the rolling linear guide rail through the vertical displacement sensor 16 and the horizontal displacement sensor 17 of the rear displacement measurement group and transmits the detected information to the PLC 18 during feeding, and the PLC 18 rechecks the straightness of the rolling linear guide rail according to the received information;
5. if the rechecking result reaches the expected straightening precision, the PLC 18 controls the rolling linear guide rail to continue feeding, otherwise, the PLC 18 calculates the straightening process parameters according to the cross section geometry and the material characteristics of the rolling linear guide rail, controls the rolling linear guide rail to advance to the servo motor 7 and then reversely rotate to the servo motor 8, and carries out reverse feeding, after the reverse feeding is carried out to a preset position, the PLC 18 controls the front anvil support block 10 and the rear anvil support block 12 to reach the preset position through the front anvil support block servo motor 13 and the rear anvil support block servo motor 14 respectively, and controls the horizontal pressure head 32 and/or the vertical pressure head 33 to carry out reverse bending and straightening through the horizontal pressure head servo electric cylinder 34 and/or the vertical pressure head servo electric cylinder 35 respectively;
6. and after the rolling linear guide rail is straightened again, repeating the steps 4 and 5 until the rolling linear guide rail is straightened.
As shown in fig. 5, which illustrates a pressure straightening principle diagram of an asymmetric curved rolling linear guide rail, the front anvil block 10 and the rear anvil block 12 can move in the horizontal direction to adapt to different curved spans L and the straightening of the asymmetric curved rolling linear guide rail, the horizontal pressure head 32 can apply a straightening load in the ± y-axis direction to the rolling linear guide rail to adapt to different curved directions, and similarly, the vertical pressure head 33 can apply a straightening load in the ± z-axis direction to the rolling linear guide rail to adapt to different curved directions.
Finally, it should be noted that the above-mentioned list is only the specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (9)
1. The two-dimensional linearity detecting and straightening device for the rolling linear guide rail is characterized by comprising a guide rail conveying device, and a linearity detecting device and a straightening device (3) which are arranged on the guide rail conveying device, wherein the linearity detecting device comprises a front displacement measuring group (1) and a rear displacement measuring group (2), and the front displacement measuring group (1) and the rear displacement measuring group (2) are respectively arranged on the front side and the rear side of the straightening device (3).
2. The two-dimensional linearity detecting and straightening device of the rolling linear guide rail according to claim 1, characterized in that the guide rail conveying device comprises a front conveying table (4), a rear conveying table (5) and a row of rollers (6) arranged along the front conveying table (4) and the rear conveying table (5), the front conveying table (4) is provided with a forward feeding servo motor (7) on the roller (6) close to the straightening device (3), and the rear conveying table (5) is provided with a rear feeding servo motor (8) on the roller (6) close to the straightening device (3).
3. The apparatus for inspecting and straightening two-dimensional straightness of a rolling linear guide according to claim 2, wherein a front support adjusting mechanism is provided at a rear end of the front conveyor table (4), and a rear support adjusting mechanism is provided at a front end of the rear conveyor table (5).
4. A two-dimensional straightness detecting and straightening device for a rolling linear guide according to claim 3, wherein the front support adjusting mechanism includes a front anvil block seat (9) and a front anvil block (10) sliding back and forth along the front anvil block seat (9), and the rear support adjusting mechanism includes a rear anvil block seat (11) and a rear anvil block (12) sliding back and forth along the rear anvil block seat (11).
5. The two-dimensional linearity detecting and straightening device of the rolling linear guide rail according to claim 4, wherein the rear end of the front conveying table (4) is provided with a front anvil block servo motor (13) for driving the front anvil block (10) to slide back and forth along the front anvil block seat (9), and the front end of the rear conveying table (5) is provided with a rear anvil block servo motor (14) for driving the rear anvil block (12) to slide back and forth along the rear anvil block seat (11).
6. The two-dimensional linearity detecting and straightening device of the rolling linear guide rail according to claim 5, characterized in that the front displacement measuring group (1) comprises a mounting seat (15) fixed on the front conveying table (4), a vertical displacement sensor (16) and a horizontal displacement sensor (17) arranged on the mounting seat (15), and the rear displacement measuring group (2) comprises a mounting seat (15) fixed on the rear conveying table (5), a vertical displacement sensor (16) and a horizontal displacement sensor (17) arranged on the mounting seat (15).
7. The two-dimensional straightness detecting and straightening device for the rolling linear guide rail according to the claim 6, characterized in that the straightening device (3) comprises a frame (31), and a horizontal pressure head (32) and a vertical pressure head (33) are arranged on a station of the frame (31).
8. The two-dimensional linearity detecting and straightening device of a rolling linear guide rail according to claim 7, wherein the frame (31) is provided with a horizontal ram servo electric cylinder (34) for driving the horizontal ram (32) to move in the horizontal direction and a vertical ram servo electric cylinder (35) for driving the vertical ram (33) to move in the vertical direction.
9. The two-dimensional linearity detecting and straightening device of the rolling linear guide rail according to claim 7, wherein the forward feeding servo motor (7), the backward feeding servo motor (8), the vertical displacement sensor (16), the horizontal displacement sensor (17), the front anvil block servo motor (13), the rear anvil block servo motor (14), the horizontal ram servo electric cylinder (34) and the vertical ram servo electric cylinder (35) are all electrically connected with a PLC (programmable logic controller) controller (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110891157.8A CN113847899A (en) | 2021-08-04 | 2021-08-04 | Two-dimensional straightness detecting and straightening device of rolling linear guide rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110891157.8A CN113847899A (en) | 2021-08-04 | 2021-08-04 | Two-dimensional straightness detecting and straightening device of rolling linear guide rail |
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| CN113847899A true CN113847899A (en) | 2021-12-28 |
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| CN202110891157.8A Pending CN113847899A (en) | 2021-08-04 | 2021-08-04 | Two-dimensional straightness detecting and straightening device of rolling linear guide rail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749520A (en) * | 2022-04-21 | 2022-07-15 | 合肥工业大学 | Non-contact detection system for bidirectional straightener |
| CN115213259A (en) * | 2022-09-20 | 2022-10-21 | 张家港市张运机械制造有限公司 | Fine straightening equipment for elevator guide rail production |
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| CN101934308A (en) * | 2010-08-20 | 2011-01-05 | 浙江大学 | Method and device for straightening multi-scale bending guide rail |
| CN203541171U (en) * | 2013-09-25 | 2014-04-16 | 常州东方高精新材料股份有限公司 | Elevator guide rail bend full-automatic straightener |
| CN104759494A (en) * | 2015-04-23 | 2015-07-08 | 长江润发机械股份有限公司 | Precise straightening machine for elevator rail |
| CN206492802U (en) * | 2017-01-13 | 2017-09-15 | 山东大学 | A kind of axial workpiece detects straightener |
| CN107377687A (en) * | 2017-08-30 | 2017-11-24 | 兰州兰石集团有限公司 | A kind of straightener |
| WO2020037343A1 (en) * | 2018-08-20 | 2020-02-27 | Hp3 Real Gmbh | Method for automatic correction of the position of a track |
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2021
- 2021-08-04 CN CN202110891157.8A patent/CN113847899A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934308A (en) * | 2010-08-20 | 2011-01-05 | 浙江大学 | Method and device for straightening multi-scale bending guide rail |
| CN203541171U (en) * | 2013-09-25 | 2014-04-16 | 常州东方高精新材料股份有限公司 | Elevator guide rail bend full-automatic straightener |
| CN104759494A (en) * | 2015-04-23 | 2015-07-08 | 长江润发机械股份有限公司 | Precise straightening machine for elevator rail |
| CN206492802U (en) * | 2017-01-13 | 2017-09-15 | 山东大学 | A kind of axial workpiece detects straightener |
| CN107377687A (en) * | 2017-08-30 | 2017-11-24 | 兰州兰石集团有限公司 | A kind of straightener |
| WO2020037343A1 (en) * | 2018-08-20 | 2020-02-27 | Hp3 Real Gmbh | Method for automatic correction of the position of a track |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749520A (en) * | 2022-04-21 | 2022-07-15 | 合肥工业大学 | Non-contact detection system for bidirectional straightener |
| CN114749520B (en) * | 2022-04-21 | 2024-03-19 | 合肥工业大学 | Non-contact detection system for bidirectional straightener |
| CN115213259A (en) * | 2022-09-20 | 2022-10-21 | 张家港市张运机械制造有限公司 | Fine straightening equipment for elevator guide rail production |
| CN115213259B (en) * | 2022-09-20 | 2022-12-13 | 张家港市张运机械制造有限公司 | Fine straightening equipment for elevator guide rail production |
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