CN113108745A - Bearing bush radius height and alignment parallelism detection device - Google Patents
Bearing bush radius height and alignment parallelism detection device Download PDFInfo
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- CN113108745A CN113108745A CN202110333327.0A CN202110333327A CN113108745A CN 113108745 A CN113108745 A CN 113108745A CN 202110333327 A CN202110333327 A CN 202110333327A CN 113108745 A CN113108745 A CN 113108745A
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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
- G01B21/02—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 length, width, or thickness
- G01B21/08—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 length, width, or thickness for measuring thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
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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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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a bearing bush radius height and alignment parallelism detection device, which comprises a fixedly arranged inspection die, wherein the inspection die is provided with a semi-cylindrical groove matched with an upper end opening of an excircle of a bearing bush, and two sets of pressing force application devices are arranged above the inspection die; the pressing force application devices comprise pressing plates which are transversely arranged and two sets of pressing force application mechanisms connected with the upper ends of the pressing plates, the pressing force application mechanisms comprise hydraulic cylinders fixedly connected with the mounting plates, fixed blocks and sliding blocks are arranged at the upper ends of the pressing plates, and the upper ends of the fixed blocks and the sliding blocks are hinged to the lower ends of telescopic shafts of the corresponding hydraulic cylinders through ball hinges. The lower end of the telescopic shaft of the hydraulic cylinder is connected with the fixed block or the sliding block through the ball hinge joint, when a detected bearing bush is detected, the pressing plate can automatically adjust the inclination of the pressing plate according to the inclination degree of the port of the detected bearing bush, the detected bearing bush is pressed by the hydraulic cylinder through force application, the two paths of radius height sensors are used for measuring the radius height of the bearing bush, and the four paths of parallelism sensors are used for measuring the contra-aperture parallelism of the bearing bush.
Description
Technical Field
The invention belongs to the field of bearing bush measuring devices, and particularly relates to bearing bush radius height and alignment parallelism detection equipment.
Background
The bearing bush is in the shape of a bush-shaped semi-cylindrical surface, is a part of a sliding bearing in contact with a shaft, is one of key parts in various engine friction pairs, and is generally made of wear-resistant materials such as bronze, antifriction alloy and the like. The bearing bush has the advantages of multiple varieties, large batch and high quality requirement, and the radius height and the aligning parallelism of the bearing bush are two important parameters for measuring the manufacturing quality of the bearing bush, so the national standard requires that the radius height and the aligning parallelism of the bearing bush are detected in a full-detection mode.
At present, a bearing bush height detection device is used by a domestic bearing bush manufacturer for measurement, the bearing bush height detection device mainly comprises a measurement base, a fixed pressing plate and a movable pressing plate, the measurement base is provided with a semicircular groove matched with the excircle of a bearing bush, and the fixed pressing plate and the movable pressing plate are respectively located on two sides of the semicircular groove and connected with the measurement base through bolts. During the use, axle bush one side offsets with fixed pressing plate lower surface, and movable pressing plate compresses tightly the terminal surface of axle bush opposite side to exert certain load to movable pressing plate, make the axle bush be in the clamping state, then measure the height at axle bush axial direction both ends respectively with slide caliper, the rethread contrast both ends height, obtain the right mouth depth of parallelism, manual measurement's mode intensity of labour is big, inefficiency and measurement accuracy receives people's influence greatly.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and aims to provide a bearing bush radius and alignment parallelism detection device to reduce the labor intensity of people.
In order to achieve the purpose, the invention adopts the following technical scheme: the equipment for detecting the radius height and the opening parallelism of the bearing bush comprises a fixedly arranged inspection die, wherein the inspection die is provided with a semi-cylindrical groove matched with an upper end opening of an excircle of the bearing bush, two sets of pressing force application devices respectively positioned on the left side and the right side of the semi-cylindrical groove are arranged above the inspection die, and the two sets of pressing force application devices are arranged at the lower end of a fixedly arranged mounting plate;
the compressing and force applying devices respectively comprise a compressing plate which is transversely arranged and two sets of compressing and force applying mechanisms which are connected with the upper end of the compressing plate and are arranged along the axial direction of the semi-cylindrical groove, the compressing and force applying mechanisms respectively comprise a hydraulic cylinder which is fixedly connected with the lower end of the mounting plate and is vertically arranged, the telescopic shaft of the hydraulic cylinder extends downwards, the upper end of the compressing plate is provided with a fixed block and a sliding block which are arranged corresponding to the two hydraulic cylinders, the fixed block is fixedly connected with the compressing plate, the sliding block can slide on the compressing plate along the axial direction of the semi-cylindrical groove, and the upper ends of the fixed block and the sliding block are hinged with the lower end of;
all have on two pressure strips and detect the piece, detect the lower terminal surface of piece and be the detection face, the left and right sides of inspection mould first semi-cylindrical recess all is equipped with a radius height sensor and two depth of parallelism sensors that correspond with the detection face.
Among the above-mentioned technical scheme, through setting up four pneumatic cylinders, radius height sensor and depth of parallelism sensor, can realize that the axle bush radius is high and to the detection of mouthful depth of parallelism, reduce people's intensity of labour, and measurement of efficiency is higher than manual measurement, and measurement accuracy results receives people's influence littleer.
The lower end of the telescopic shaft of the hydraulic cylinder is connected with the fixed block or the sliding block through the ball hinge joint, when a detected bearing bush is detected, the pressing plate can automatically adjust the inclination of the pressing plate according to the inclination degree of the port of the detected bearing bush, the detected bearing bush is pressed by the hydraulic cylinder through force application, the two paths of radius height sensors are used for measuring the radius height of the bearing bush, and the four paths of parallelism sensors are used for measuring the contra-aperture parallelism of the bearing bush. And the lower extreme of pneumatic cylinder telescopic shaft passes through the ball hinge and is connected with fixed block or slider, and at the in-process that compresses tightly the axle bush that is surveyed, the pressure strip still can be through the relative axle bush radial swing that is surveyed of ball hinge, and when this place adaptation compressed tightly the axle bush both ends port of being surveyed, axle bush port terminal surface inclination's change avoided axle bush both ends port stress concentration, better protection axle bush port. The radius high sensor and the parallelism sensor are arranged on the inspection die, so that the requirement on the processing precision of the surface of the inspection die except the semi-cylindrical groove is low, the requirements on the lower surface of the inspection die and the detection surface at the lower end of the detection block are high, and the processing cost is reduced; and the detection surface is arranged on the detection die, so that the detection surface can be prevented from being damaged manually.
In a preferred embodiment of the invention, a force sensor is arranged between the fixed block and the corresponding ball joint, and a force sensor is also arranged between the slide block and the corresponding ball joint. The force sensor is arranged, so that whether the pressing force applied to the bearing bush by the hydraulic cylinder reaches a set value or not can be monitored conveniently, and the applied pressing force can be obtained visually.
In a preferred embodiment of the invention, the ball joint comprises a ball head and a joint seat matched with the ball head in a spherical surface mode, one of the joint seat and the ball head is fixed to the lower end of the telescopic shaft of the hydraulic cylinder, and the other of the joint seat and the ball head is fixedly connected with the fixed block or the sliding block.
In a preferred embodiment of the present invention, two parallelism sensors on one side of the semi-cylindrical groove are respectively located at the front and rear ends of the inspection die, and the radius height sensor is located between the two parallelism sensors.
In a preferred embodiment of the present invention, both left and right ends of the inspection die have undercut grooves recessed downward, and the radius sensor and the parallelism sensor are installed in the undercut grooves.
In another preferred embodiment of the present invention, the upper end of the pressing plate has a sliding slot disposed along the axial direction of the semi-cylindrical groove, the lower end of the sliding block has a sliding column engaged with the sliding slot, and the sliding column is clamped in the sliding slot and can slide in the sliding slot.
In another preferred embodiment of the present invention, the detection block is integrally formed with the pressing plate. The integrated into one piece processing is convenient, detects piece and pressure strip junction intensity height.
In another preferred embodiment of the present invention, the detecting block and the pressing plate are separately installed and then embedded into a whole. The detection blocks are arranged in a split mode, and after the detection blocks are damaged, the detection blocks can be only processed independently.
In another preferred embodiment of the invention, the detection device is also provided with a surface flatness scanner and a movable laser repairing device, the laser repairing device is respectively connected with the surface flatness scanner, the radius height sensor and the parallelism sensor, and when the surface of the bearing bush is uneven or the radius is higher than a threshold value or the bearing bush is not parallel to the opening, the laser repairing device moves to repair the bearing bush;
the surface flatness scanner scans around the shaft tile in an annular operation mode, the radius high sensor and the parallelism sensor detect, and the surface flatness scanner, the radius high sensor and the parallelism sensor respectively transmit data to the laser repairing device;
the laser repairing device moves and generates discontinuous laser beams to repair the uneven parts, the over-high parts or the non-parallel parts by laser, the surface flatness scanner repeatedly and annularly scans around the bearing bush at regular intervals, and the radius height sensor and the parallelism sensor repeatedly detect until the size of the bearing bush meets the requirement;
the movable laser repair device comprises: the device comprises a position adjusting unit, a femtosecond laser, a beam splitter, a first energy adjusting unit, a first diameter adjusting unit, a second energy adjusting unit, a second diameter adjusting unit and a beam combiner;
the femtosecond laser and the beam splitter are arranged along the optical axis, and the beam splitter can split the laser beam generated by the femtosecond laser into a first laser beam and a second laser beam;
the first energy adjusting unit and the first diameter adjusting unit are arranged along the optical axis of the first laser beam, the first energy adjusting unit improves the energy of the first laser beam, and the first diameter adjusting unit reduces the diameter of the first laser beam;
the second energy adjusting unit and the second diameter adjusting unit are arranged along the optical axis of the second laser beam, the second energy adjusting unit reduces the energy of the second laser beam, and the second diameter adjusting unit increases the diameter of the second laser beam;
and the beam combiner combines and outputs the first laser beam and the second laser beam after the energy adjustment and the diameter adjustment.
Among the above-mentioned technical scheme, set up surface flatness scanner and laser prosthetic devices, be convenient for when detecting axle bush radius height and to mouthful depth of parallelism repair the surface of unqualified axle bush.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic front view structure diagram of equipment for detecting the radius and the alignment parallelism of a bearing bush according to a first embodiment of the present application.
Fig. 2 is a schematic side view of a bearing bush radius height and alignment parallelism detection apparatus according to a first embodiment of the present application.
Fig. 3 is a schematic front view of a bearing bush radius height and alignment parallelism detection device according to the first embodiment of the present application when measuring a standard bearing bush.
Fig. 4 is a schematic side view of a bearing bush radius height and alignment parallelism detection device according to the first embodiment of the present application when measuring a standard bearing bush.
Fig. 5 is a schematic side view of a bearing bush radius height and alignment parallelism detection device according to the first embodiment of the present application when measuring a measured bearing bush.
Reference numerals in the drawings of the specification include: the device comprises a detection die 10, a semi-cylindrical groove 11, a notch groove 12, a support 13, a parallelism sensor 21, a radius height sensor 22, a pressing force application device 30, a pressing plate 31, a detection block 311, a detection surface 3111, a sliding groove 312, a pressing force application mechanism 32, a hydraulic cylinder 321, a hydraulic cylinder telescopic shaft 3211, a force sensor 322, a fixed block 323, a sliding block 324, a sliding column 3241, a ball joint 325, a ball head 3251, a hinge seat 3252, a mounting plate 40, a standard bearing bush 50 and a measured bearing bush 60.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
Example one
The embodiment provides a bearing bush radius height and alignment parallelism detection device, as shown in fig. 1 and fig. 2, in a preferred embodiment of the invention, the bearing bush radius height and alignment parallelism detection device comprises a fixedly arranged inspection die 10, the inspection die 10 is provided with a semi-cylindrical groove 11 matched with an upper end opening of an excircle of a bearing bush, two sets of pressing force application devices 30 respectively positioned at the left side and the right side of the semi-cylindrical groove 11 are arranged above the inspection die 10, the two sets of pressing force application devices 30 are arranged at the lower end of a fixedly arranged mounting plate 40, the mounting plate 40 can be fixed by a support, and the two sets of pressing force application devices 30 respectively press two alignment openings of the bearing bush.
The pressing and force-applying devices 30 each include a pressing plate 31 disposed horizontally, and two sets of pressing and force-applying mechanisms 32 connected to the upper end of the pressing plate 31 and disposed along the axial direction (the front-back direction in fig. 2) of the semi-cylindrical groove 11, the pressing and force-applying mechanisms 32 each include a vertically disposed hydraulic cylinder 321 fixedly connected to the lower end of the mounting plate 40, and the hydraulic cylinder telescopic shaft 3211 extends downward. The upper end of the pressing plate 31 is provided with a fixed block 323 and a sliding block 324 which are arranged corresponding to the two hydraulic cylinders 321, for example, the front end is provided with the fixed block 323, the rear end is provided with the sliding block 324, the fixed block 323 is fixedly connected with the pressing plate 31, the sliding block 324 can be arranged on the pressing plate 31 along the axial direction of the semi-cylindrical groove 11, and the upper ends of the fixed block 323 and the sliding block 324 are hinged with the lower end of the telescopic shaft 3211 of the corresponding hydraulic cylinder through a ball joint 325.
In this embodiment, the ball joint 325 includes a ball head 3251 and a joint seat 3252 engaged with the ball head 3251, one of the joint seat 3252 and the ball head 3251 is fixed to the lower end of the hydraulic cylinder telescopic shaft 3211, and the other is fixed to the fixing block 323 or the sliding block 324, for example, the ball head 3251 is fixed to the lower end of the hydraulic cylinder telescopic shaft 3211, and the ball joint connection is a conventional joint connection method, which is not described in detail herein.
As shown in fig. 2, the specific connection manner of the slider 324 and the pressing plate 31 is as follows: the right side of the upper end of the pressing plate 31 is provided with a sliding groove 312 arranged along the axial direction (front-back direction) of the semi-cylindrical groove 11, for example, the sliding groove 312 is a dovetail groove or a T-shaped groove, the lower end of the sliding block 324 is provided with a sliding column 3241 matched with the sliding groove 312, and the sliding column 3241 is clamped in the sliding groove 312 and can slide in the sliding groove 312. Preferably, balls are provided on the inner wall of the sliding groove 312, thereby facilitating the sliding of the slider 324 back and forth on the pressing plate 31.
Preferably, a force sensor 322 is arranged between the fixed block 323 and the corresponding ball joint 325, a force sensor 322 is also arranged between the slide block 324 and the corresponding ball joint 325, and a total of four force sensors 322 are provided, the four force sensors 322 are arranged corresponding to the four hydraulic cylinders 321, the force sensors 322 are mounted on the fixed block 323 and the slide block 324 through bolts, and the hinge seat 3252 is fixedly connected with the force sensors 322 through bolts.
As shown in fig. 1, the two pressing plates 31 each have a detection block 311, the lower end surface of the detection block 311 is a detection surface 3111, the detection block 311 is located outside the pressing plate 31, and the detection block 311 and the pressing plate 31 are integrally formed, or the detection block 311 and the pressing plate 31 are separately installed and then are integrally embedded. The left end and the right end of the inspection die 10 are provided with downwards-recessed notch grooves 12, the bottom surfaces of the notch grooves 12 are arranged opposite to a detection surface 3111, a radius high sensor 22 and two parallelism sensors 21 corresponding to the detection surface 3111 are arranged in the left notch groove 12 and the right notch groove 12, the two radius high sensors 22 and the four parallelism sensors 21 are totally arranged, the two radius high sensors 22 are used for measuring the radius height of the bearing bush, and the four parallelism sensors 21 are used for measuring the aligning parallelism of the bearing bush. The three sensors on the left side of the semi-cylindrical groove 11 and the three sensors on the right side are symmetrically arranged, the two parallelism sensors 21 on one side of the semi-cylindrical groove 11 are respectively positioned at the front end and the rear end of the inspection die 10, and the radius high sensor 22 is positioned between the two parallelism sensors 21, namely positioned in the middle. The radius height sensor 22 and the parallelism sensor 21 are both mounted in the notch groove 12 through a bracket 13 fixedly connected with the inspection die 10, and the radius height sensor 22 and the parallelism sensor 21 are inserted into holes of the bracket 13 and locked by screws.
In this embodiment, the flatness of the detection surface 3111 at the lower end of the detection block 311 is required to be within 2um, the flatness of the lower surface of the pressing plate 31 is required to be within 2um, and the material of the inspection die 10 and the pressing plate 31 must be hardened steel and have sufficient rigidity to ensure that the bush satisfies the predetermined accuracy requirement when inspected in a loaded state.
The specific working process is as follows:
as shown in fig. 3 and 4, before measuring the radius height and the port parallelism of the bearing shell by the detecting device of the present invention, the radius height sensor 22 and the parallelism sensor 21 are first zeroed by the standard bearing shell 50. The method comprises the following steps: the standard bearing bush 50 is placed in the semi-cylindrical groove 11 of the inspection die 10, then the four hydraulic cylinders 321 are started, the hydraulic cylinder telescopic shafts 3211 extend downwards to enable the two pressing plates 31 to move downwards, the two pressing plates 31 respectively press ports at two ends of the standard bearing bush 50, the hydraulic cylinders 321 apply certain pressure and maintain the pressure to enable the standard bearing bush 50 to be fixed in the semi-cylindrical groove 11 under certain pressure (simulating the stress state of the bearing bush in an engine, and the specific pressure is determined according to actual conditions) and attached to the semi-cylindrical groove 11. The two-way radius high sensor 22 and the four-way parallelism sensor 21 are abutted against a detection surface 3111 at the lower end of the detection block 311, the reading of the radius high sensor 22 and the reading of the parallelism sensor 21 are observed, the heights of the radius high sensor 22 and the parallelism sensor 21 are adjusted on the support 13, so that certain measurement allowance is reserved above and below the radius high sensor 22 and the parallelism sensor 21, and then the reading of the radius high sensor 22 and the parallelism sensor 21 is returned to zero. Then, the four hydraulic cylinders 321 are decompressed, the hydraulic cylinder telescopic shafts 3211 are retracted to the initial position, the two compression plates 31 leave the standard bearing bush 50 to the initial position, and then the standard bearing bush 50 is taken out, so that zero verification of the radius high sensor 22 and the parallelism sensor 21 is completed.
As shown in fig. 5, when the tested bearing bush 60 is tested, the tested bearing bush 60 is placed in the semi-cylindrical groove 11 of the inspection mold 10, then the four hydraulic cylinders 321 are started, the two pressing plates 31 respectively press the two ends of the tested bearing bush 60, and the tested bearing bush 60 is fixed in the semi-cylindrical groove 11 under the same pressing force as the standard bearing bush 50 and is attached to the semi-cylindrical groove 11. Taking the port of the measured bearing bush 60 as a high front end and a low rear end as an example, in the process of pressing the ports at the two ends of the measured bearing bush 60, the four hydraulic cylinder telescopic shafts 3211 extend simultaneously, the pressing plate 31 contacts with the front end of the measured bearing bush 60 first, the four hydraulic cylinders 321 continue to work, and because the pressing plate 31 is connected with the hydraulic cylinder telescopic shafts 3211 through the ball joint 325, the hinge seat 3252 at the front end is opposite to the ball center O of the ball head 3251 thereof1When the hydraulic cylinder extends the shaft 3211, the pivot base 3252 is rotated clockwise relative to the center O of the ball 32512The clockwise rotation, and the sliding column 3241 of the sliding block 324 slides backwards in the sliding slot 312, so that the whole pressing plate 31 tilts backwards, and the lower end surface of the pressing plate 31 is attached to the port of the measured bearing bush 60. The four hydraulic cylinders 321 continue to work, the measured bearing shoe 60 is pressed and a certain pressure is applied, the values of the two radius height sensors 22 and the four parallelism sensors 21 are read after stabilization, the alignment parallelism is calculated according to the values of the four parallelism sensors 21, and the method for specifically calculating the alignment parallelism is the prior art and is not detailed herein. Then, the four hydraulic cylinders 321 are decompressed, the hydraulic cylinder telescopic shafts 3211 are retracted to the initial position, the two pressing plates 31 leave the measured bearing bush 60 to the initial position, and then the measured bearing bush 60 is taken out.
In the pressing force application device 30, when the two hydraulic cylinders 321 are not operated synchronously, the slider 324 slides back and forth on the pressing plate 31 to incline the pressing plate 31, so that the detection device has compatibility with the asynchronous operation of the hydraulic cylinders 321.
Example two
The structural principle of this embodiment is basically the same as that of the first embodiment, except that the inspection apparatus of this embodiment further has a surface flatness scanner and a movable laser repair device. The laser repairing device is electrically connected with the surface flatness scanner, the radius height sensor 22 and the parallelism sensor 21 respectively, and when the surface of the bearing bush (the measured bearing bush 60) is uneven or the radius is higher than a threshold value or is not parallel to the opening, the laser repairing device moves to repair the bearing bush.
Specifically, the surface flatness scanner scans around the axle shoe in an annular operation mode, the radius high sensor 22 and the parallelism sensor 21 detect the surface flatness scanner, the radius high sensor 22 and the parallelism sensor 21 respectively transmit data to the laser repairing device. The laser repairing device moves and generates discontinuous laser beams to repair uneven parts, over-high parts or non-parallel parts by laser, the surface flatness scanner repeatedly and annularly scans around the bearing bush at regular intervals, and the radius height sensor 22 and the parallelism sensor 21 repeatedly detect until the size of the bearing bush meets the requirement.
In this embodiment, a laser repair apparatus includes: the device comprises a position adjusting unit, a femtosecond laser, a beam splitter, a first energy adjusting unit, a first diameter adjusting unit, a second energy adjusting unit, a second diameter adjusting unit and a beam combiner.
The femtosecond laser and the beam splitter are arranged along the optical axis; the beam splitter may split the laser beam generated by the femtosecond laser into a first laser beam and a second laser beam. The first energy adjusting unit and the first diameter adjusting unit are arranged along the optical axis of the first laser beam, the first energy adjusting unit increases the energy of the first laser beam, and the first diameter adjusting unit reduces the diameter of the first laser beam. The second energy adjusting unit and the second diameter adjusting unit are arranged along the optical axis of the second laser beam, the second energy adjusting unit reduces the energy of the second laser beam, and the second diameter adjusting unit increases the diameter of the second laser beam. And the beam combiner combines and outputs the first laser beam and the second laser beam after the energy adjustment and the diameter adjustment.
In this embodiment, the position adjusting unit is used to move the laser repairing device, and specifically, the laser repairing device can move back and forth, back and left, vertically and annularly around the axle shoe, for example, in a manner of moving a milling cutter vertically, back and forth, back and left and annularly disclosed in CN201811267728.5 or CN 201710023754.2.
In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The equipment for detecting the radius height and the opening parallelism of the bearing bush is characterized by comprising a fixedly arranged inspection die, wherein the inspection die is provided with a semi-cylindrical groove matched with an upper opening of an excircle of the bearing bush, two sets of pressing force application devices respectively positioned on the left side and the right side of the semi-cylindrical groove are arranged above the inspection die, and the two sets of pressing force application devices are arranged at the lower end of a fixedly arranged mounting plate;
the pressing force application devices respectively comprise a pressing plate which is transversely arranged and two sets of pressing force application mechanisms which are connected with the upper end of the pressing plate and are arranged along the axial direction of the semi-cylindrical groove, each pressing force application mechanism comprises a hydraulic cylinder which is fixedly connected with the lower end of the mounting plate and is vertically arranged, the telescopic shaft of the hydraulic cylinder extends downwards, the upper end of the pressing plate is provided with a fixed block and a sliding block which are arranged corresponding to the two hydraulic cylinders, the fixed block is fixedly connected with the pressing plate, the sliding block can slide on the pressing plate along the axial direction of the semi-cylindrical groove, and the upper ends of the fixed block and the sliding block are hinged with the lower end of the telescopic shaft of the corresponding hydraulic cylinder through ball;
the two pressure plates are respectively provided with a detection block, the lower end face of each detection block is a detection face, and the left side and the right side of the upper semi-cylindrical groove of the inspection die are respectively provided with a radius height sensor and two parallelism sensors corresponding to the detection faces.
2. The bearing shell radius height and alignment parallelism detection apparatus of claim 1, wherein a force sensor is disposed between the fixed block and the corresponding ball joint, and a force sensor is also disposed between the slide block and the corresponding ball joint.
3. The bearing bush radius height and alignment parallelism detection apparatus according to claim 1, wherein the ball joint comprises a ball head and a joint seat engaged with a spherical surface of the ball head, one of the joint seat and the ball head is fixed to a lower end of the telescopic shaft of the hydraulic cylinder, and the other is fixedly connected to a fixed block or a slide block.
4. The bearing shell radius height and alignment parallelism detection apparatus according to claim 1, wherein the two parallelism sensors on one side of the semi-cylindrical groove are respectively located at the front and rear ends of the inspection die, and the radius height sensor is located between the two parallelism sensors.
5. The bearing shell radius height and alignment parallelism detection apparatus according to claim 1, wherein the inspection die has undercut grooves recessed downward at both left and right ends, and the radius height sensor and the parallelism sensor are installed in the undercut grooves.
6. The bearing shell radius height and alignment parallelism detection device according to claim 1, wherein the upper end of the pressure plate has a sliding groove arranged along the axial direction of the semi-cylindrical groove, the lower end of the sliding block has a sliding column engaged with the sliding groove, and the sliding column is clamped in the sliding groove and can slide in the sliding groove.
7. Bearing shell radius height and alignment parallelism detection apparatus according to any of claims 1 to 6, wherein the detection blocks are integrally formed with the pressure plate.
8. The bearing shell radius height and alignment parallelism detection device according to any one of claims 1 to 6, wherein the detection block and the pressing plate are separately arranged and then embedded into a whole.
9. Bearing shell radius height and contra-aperture parallelism detection apparatus according to any of claims 1 to 6, further comprising a surface flatness scanner and a movable laser repair device, said laser repair device being connected to the surface flatness scanner, the radius height sensor and the parallelism sensor, respectively, and being movable to repair the bearing shell when the bearing shell surface is uneven or the radius is above a threshold or the contra-aperture is not parallel;
the surface flatness scanner scans around the shaft tile in an annular operation mode, the radius high sensor and the parallelism sensor detect, and the surface flatness scanner, the radius high sensor and the parallelism sensor respectively transmit data to the laser repairing device;
the laser repairing device moves and generates discontinuous laser beams to repair uneven parts, over-high parts or non-parallel parts by laser, the surface flatness scanner repeatedly and annularly scans around the bearing bush at regular intervals, and the radius height sensor and the parallelism sensor repeatedly detect until the size of the bearing bush meets the requirement;
the movable laser repair device comprises: the device comprises a position adjusting unit, a femtosecond laser, a beam splitter, a first energy adjusting unit, a first diameter adjusting unit, a second energy adjusting unit, a second diameter adjusting unit and a beam combiner;
the femtosecond laser and the beam splitter are arranged along an optical axis, and the beam splitter can split a laser beam generated by the femtosecond laser into a first laser beam and a second laser beam;
the first energy adjusting unit and the first diameter adjusting unit are arranged along the optical axis of the first laser beam, the first energy adjusting unit improves the energy of the first laser beam, and the first diameter adjusting unit reduces the diameter of the first laser beam;
the second energy adjusting unit and the second diameter adjusting unit are arranged along the optical axis of the second laser beam, the second energy adjusting unit reduces the energy of the second laser beam, and the second diameter adjusting unit increases the diameter of the second laser beam;
and the beam combiner combines and outputs the first laser beam and the second laser beam after energy adjustment and diameter adjustment.
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| CN114295036A (en) * | 2021-11-23 | 2022-04-08 | 一重集团天津重工有限公司 | Grinding precision testing method for hot die forging connecting rod bearing bush |
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| CN113108745B (en) | 2023-03-10 |
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