CN112692427B - Device capable of detecting rotation concentricity of round workpiece - Google Patents
Device capable of detecting rotation concentricity of round workpiece Download PDFInfo
- Publication number
- CN112692427B CN112692427B CN202011641252.4A CN202011641252A CN112692427B CN 112692427 B CN112692427 B CN 112692427B CN 202011641252 A CN202011641252 A CN 202011641252A CN 112692427 B CN112692427 B CN 112692427B
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- assembly
- frame
- plate
- turntable
- connection plate
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Classifications
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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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
-
- 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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
-
- 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
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a device capable of detecting rotation concentricity of a circular workpiece, which comprises a frame, a portal frame assembly arranged on the frame, a follow-up pressing assembly arranged on the moving end of the portal frame assembly, a turntable rotationally connected with the frame, a clamp assembly movably connected with the turntable, and a jacking assembly arranged on the frame and positioned below the turntable, wherein the jacking assembly can drive the clamp assembly to move up and down; the follow-up pressing assembly comprises a fixed frame arranged on the portal frame assembly, a rotating shaft rotatably connected with the fixed frame, a round fixed plate fixedly connected with the rotating shaft, a pressure plate arranged below the round fixed plate, and two laser sensors arranged on the fixed frame; the circular fixed plate is provided with three sections of uniformly distributed arc-shaped grooves in the circumferential direction, laser emitted by the two laser sensors can pass through the arc-shaped grooves, and the distance between the two laser is set to be the diameter of a circular workpiece to be detected.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a device capable of detecting rotation concentricity of a round workpiece.
Background
With the widespread use of laser welding, the workpiece profile tends to be diversified and attractive. For a workpiece needing to be welded circumferentially, if the rotation of the workpiece is not concentric, the defocusing distance is different during laser welding, the workpiece is pressed unevenly, and the welding quality problems such as inconsistent weld width and the like are directly caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device capable of detecting the rotation concentricity of a circular workpiece, and aims to solve the problem of the non-concentricity of the rotation of the workpiece during circumferential laser welding.
In order to solve the technical problems, the invention adopts the following technical scheme:
the device comprises a frame, a portal frame assembly arranged on the frame, a follow-up pressing assembly arranged on the moving end of the portal frame assembly, a turntable rotationally connected with the frame, a clamp assembly movably connected with the turntable, and a jacking assembly arranged on the frame and positioned below the turntable, wherein the jacking assembly can drive the clamp assembly to move up and down;
the follow-up pressing assembly comprises a fixed frame arranged on the portal frame assembly, a rotating shaft rotatably connected with the fixed frame, a round fixed plate fixedly connected with the rotating shaft, a pressure plate arranged below the round fixed plate and two laser sensors arranged on the fixed frame; circular fixed plate has seted up the arc groove of three sections equipartitions in the circumference, rotation axis, circular fixed plate, pressure disk are concentric to be set up, two laser sensor set up about the rotation axis symmetry, the laser that two laser sensor sent can pass through in the arc groove, and the diameter of waiting to detect circular work piece is established to the interval of twice laser.
The clamp assembly comprises a first guide shaft connected with the turntable, a rotary platform mounted on the first guide shaft, and a clamp mounted on the rotary platform.
The two clamp assemblies are symmetrical with respect to the circle center of the turntable.
The fixed frame comprises a first connecting plate fixed on the moving end of the portal frame assembly and a second connecting plate movably connected with the first connecting plate, a pressure sensor is arranged on the second connecting plate, two laser sensors are installed on the second connecting plate, and the rotating shaft is rotatably connected with the second connecting plate.
Wherein the pressure sensors are four and are arranged at four corners of the second connecting plate.
The first connecting plate and the second connecting plate are movably connected through a second guide shaft.
The second connecting plate is provided with a bearing seat and a matched bearing, and the rotating shaft is arranged on the bearing.
Wherein the diameter of the pressure plate is not larger than the inner diameter of the arc-shaped groove.
The invention has the beneficial effects that:
according to the invention, the clamp assembly is sent to the lower part of the portal frame through rotation of the turntable, the jacking assembly jacks up the clamp assembly and drives the circular workpiece on the clamp assembly to move upwards to the pressure plate, the clamp assembly drives the circular workpiece to rotate, laser of the two laser sensors is emitted from the arc-shaped groove of the circular fixing plate, signals obtained by the two laser sensors are respectively 1 and 1 when the two laser sensors irradiate the most edge of the circular workpiece, if the signals obtained by the two laser sensors are the same with the signals, the circle defocusing distance of the circular workpiece is the same, and consistency of weld joint width and good pressing effect of the pressure plate during rotating circumference welding are ensured.
Drawings
The following details the specific construction of the present invention with reference to the accompanying drawings
FIG. 1 is a front view of an apparatus for detecting rotational concentricity of a circular workpiece according to an embodiment of the present invention;
fig. 2 is a front view of a follow-up pressing assembly according to an embodiment of the present invention;
FIG. 3 is a bottom view of the follower nip assembly of FIG. 2;
FIG. 4 is a front view of a clamp assembly provided in an embodiment of the present invention;
FIG. 5 is an isometric view of an apparatus for detecting rotational concentricity of a circular workpiece according to an embodiment of the present invention;
FIG. 6 is an isometric view of a follower compression assembly according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of the follower nip assembly of fig. 2.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 3, fig. 1 is a front view of an apparatus for detecting rotational concentricity of a circular workpiece according to an embodiment of the present invention, fig. 2 is a front view of a follow-up pressing assembly according to an embodiment of the present invention, and fig. 3 is a bottom view of the follow-up pressing assembly shown in fig. 2. As shown in the figure, a device capable of detecting rotation concentricity of a circular workpiece comprises a frame 100, a portal frame assembly 200 installed on the frame 100, a follow-up pressing assembly 300 installed on a moving end of the portal frame assembly 200, a turntable 400 rotatably connected to the frame 100, a clamp assembly 500 movably connected to the turntable 400, and a jacking assembly 600 installed on the frame 100 and positioned below the turntable 400, wherein the jacking assembly 600 can drive the clamp assembly 500 to move up and down;
wherein, the follow-up pressing assembly 300 comprises a fixing frame 310 installed on the portal frame assembly 200, a rotating shaft 320 rotatably connected to the fixing frame 310, a circular fixing plate 330 fixedly connected to the rotating shaft 320, a pressure plate 340 installed under the circular fixing plate 330, and two laser sensors 350 installed on the fixing frame 310; circular fixed plate 330 has offered the arc groove 331 of three sections equipartitions in the circumference, rotation axis 320, circular fixed plate 330, pressure disk 340 set up with one heart, two laser sensor 350 set up with respect to rotation axis 320 symmetry, the laser that two laser sensor 350 sent can pass through in the arc groove 331, and the diameter of waiting to detect circular work piece is set to the interval of two laser.
Wherein, the diameter of the pressure plate 340 is not greater than the inner diameter of the arc groove 331, so that the laser is prevented from being blocked by the pressure plate 340 when passing through the arc groove 331, and cannot irradiate on the round workpiece.
The invention has the beneficial effects that:
according to the invention, the clamp assembly 500 is sent to the lower part of the portal frame through the rotation of the turntable 400, the jacking assembly 600 jacks up the clamp assembly 500 upwards and drives the round workpiece on the clamp assembly 500 to move upwards to the position of the pressure plate 340, the clamp assembly 500 drives the round workpiece to rotate, the lasers of the two laser sensors 350 are emitted from the arc-shaped groove 331 of the round fixing plate 330, the signals obtained by the two laser sensors are respectively 1 and 1 when the two lasers are irradiated to the most edge of the round workpiece, if the signals obtained by the two laser sensors are the same as the signals, the circle defocusing distance of the round workpiece is the same, and the consistency of the weld joint width and the good pressing effect of the pressure plate during the rotation circle welding are ensured.
The setting of the detection signal of the laser sensor 350 is divided into three cases according to the size of the laser reflection distance:
(1) when the circular workpiece rotates concentrically, both laser sensors 350 are irradiated on the most edge of the circular workpiece, and the obtained signals are respectively: 1. 1, a step of;
(2) when the circular workpiece is rotated non-concentrically, a laser sensor 350 is irradiated on the upper surface of the workpiece, and a signal is obtained: 1, the other necessarily irradiates the outer area of the circular workpiece, the irradiation distance is relatively farther, and a signal is obtained: 0, the two laser sensors 350 obtain signals of: 1. 0 or 0, 1;
(3) when there is no empty rotation of the circular workpiece, both laser sensors 350 are illuminated on the jig assembly 500 at a relatively longer illumination distance, and the two laser sensors 350 obtain signals of: 0. 0.
Because of the special distribution of the three arc grooves 331, one laser sensor 350 must penetrate the arc groove 331 when it irradiates the circular fixing plate 330; in addition, the detection signal of the laser sensor 350 has a dead zone, and when the laser sensor 350 irradiates the upper surface of the circular fixing plate 330, the dead zone of the detection signal of the sensor is located, and the signal feedback cannot be obtained. Therefore, when the round workpiece rotates, only one signal is 0, namely the rotation is not concentric.
Further, and referring to fig. 2, the fixing frame 310 includes a first connection plate 311 fixed on the moving end of the gantry assembly 200, and a second connection plate 312 movably connected to the first connection plate 311, a pressure sensor 360 is disposed on the second connection plate 312, the two laser sensors 350 are mounted on the second connection plate 312, and the rotation shaft 320 is rotatably connected to the second connection plate 312. When the fixture assembly 500 drives the round workpiece to ascend, the round workpiece is pressed with the pressing plate 340 and the round fixing plate 330, the rotating shaft 320 is pressed, the distance between the first connecting plate 311 and the second connecting plate 312 can be adjusted through the pressure sensor 360, and damage to the components is avoided.
Further, referring to fig. 2, the first connecting plate 311 and the second connecting plate 312 are movably connected through the second guiding shaft 370, so as to ensure that the first connecting plate 311 and the second connecting plate 312 move relatively in the vertical direction.
Further, and referring to fig. 4, the jig assembly 500 includes a first guide shaft 510 connected to the turntable 400, a rotating platform 520 mounted on the first guide shaft 510, and a jig 530 mounted on the rotating platform 520, the rotating platform 520 driving a circular workpiece on the jig 530 to rotate.
Further, referring to fig. 5, two clamp assemblies 500 are provided, and the two clamp assemblies 500 are symmetrical with respect to the center of the turntable 400, so that two circular workpieces can be inspected at a time during loading and unloading, and the inspection efficiency is improved.
Further, and referring to fig. 6, the pressure sensors 360 are installed at four corners of the second connection plate 312, and the plurality of pressure sensors 360 ensure more accurate adjustment of the distance between the first connection plate 311 and the second connection plate 312.
Further, referring to fig. 7, the second connecting plate 312 is provided with a bearing seat 380 and a matched bearing 390, and the rotating shaft 320 is mounted on the bearing 390, so that the rotating friction is reduced.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (5)
1. The device capable of detecting the rotation concentricity of the round workpiece is characterized by comprising a frame, a portal frame assembly arranged on the frame, a follow-up pressing assembly arranged on the moving end of the portal frame assembly, a turntable rotationally connected with the frame, a clamp assembly movably connected with the turntable, and a jacking assembly arranged on the frame and positioned below the turntable, wherein the jacking assembly can drive the clamp assembly to move up and down;
the follow-up pressing assembly comprises a fixed frame arranged on the portal frame assembly, a rotating shaft rotatably connected with the fixed frame, a round fixed plate fixedly connected with the rotating shaft, a pressure plate arranged below the round fixed plate and two laser sensors arranged on the fixed frame; the circular fixing plate is provided with three sections of uniformly distributed arc-shaped grooves in the circumferential direction, the rotating shaft, the circular fixing plate and the pressure plate are concentrically arranged, the two laser sensors are symmetrically arranged about the rotating shaft, laser emitted by the two laser sensors can pass through the arc-shaped grooves, and the distance between the two laser sensors is set to be the diameter of a circular workpiece to be detected;
the clamp assembly comprises a first guide shaft connected with the turntable, a rotary platform arranged on the first guide shaft, and a clamp arranged on the rotary platform; the two clamp assemblies are symmetrical about the circle center of the turntable; the diameter of the pressure plate is not larger than the inner diameter of the arc-shaped groove.
2. The apparatus of claim 1, wherein the holder comprises a first connection plate fixed to the movable end of the gantry assembly, and a second connection plate movably connected to the first connection plate, the second connection plate having a pressure sensor thereon, the two laser sensors being mounted on the second connection plate, the rotation shaft being rotatably connected to the second connection plate.
3. The apparatus for detecting rotational concentricity of a circular workpiece as set forth in claim 2, wherein the pressure sensors are four and are mounted at four corners of the second web.
4. The apparatus for detecting rotational concentricity of a circular workpiece as set forth in claim 2, wherein the first connection plate is movably connected to the second connection plate by a second guide shaft.
5. The apparatus for detecting rotational concentricity of a circular workpiece according to claim 2, wherein the second connection plate is provided with a bearing housing and a matched bearing, and the rotation shaft is mounted on the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641252.4A CN112692427B (en) | 2020-12-31 | 2020-12-31 | Device capable of detecting rotation concentricity of round workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641252.4A CN112692427B (en) | 2020-12-31 | 2020-12-31 | Device capable of detecting rotation concentricity of round workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112692427A CN112692427A (en) | 2021-04-23 |
| CN112692427B true CN112692427B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011641252.4A Active CN112692427B (en) | 2020-12-31 | 2020-12-31 | Device capable of detecting rotation concentricity of round workpiece |
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| Country | Link |
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| CN (1) | CN112692427B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2107259C1 (en) * | 1995-09-05 | 1998-03-20 | Виктор Владимирович Каширин | Device for checking of parts coaxiality, center finder and guidance mechanism |
| CN102072711A (en) * | 2010-11-16 | 2011-05-25 | 中国科学院长春光学精密机械与物理研究所 | Radial runout non-contact detecting device for rotation shaft system |
| CN108151678A (en) * | 2018-01-25 | 2018-06-12 | 国网浙江省电力有限公司电力科学研究院 | Portable porcelain bottle faces parallel and concentricity testing device and its detection method |
| CN109238212A (en) * | 2018-07-13 | 2019-01-18 | 进峰（江门）五金制造有限公司 | A kind of end cap concentricity automatic tester and detection method |
| JP2019034323A (en) * | 2017-08-18 | 2019-03-07 | 日本特殊陶業株式会社 | Laser welding method and manufacturing method for gas sensor |
| CN211425358U (en) * | 2019-11-29 | 2020-09-04 | 浙江双元科技开发有限公司 | Tool for detecting coaxiality accurate position of laser scanning frame |
| CN111791018A (en) * | 2020-08-26 | 2020-10-20 | 陈辉 | Automatic assembling equipment for inner and outer barrels of central sleeve of shield cutter head |
| CN111998804A (en) * | 2020-09-02 | 2020-11-27 | 吕旭盼 | Detection apparatus for steering wheel plane degree and axiality |
-
2020
- 2020-12-31 CN CN202011641252.4A patent/CN112692427B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2107259C1 (en) * | 1995-09-05 | 1998-03-20 | Виктор Владимирович Каширин | Device for checking of parts coaxiality, center finder and guidance mechanism |
| CN102072711A (en) * | 2010-11-16 | 2011-05-25 | 中国科学院长春光学精密机械与物理研究所 | Radial runout non-contact detecting device for rotation shaft system |
| JP2019034323A (en) * | 2017-08-18 | 2019-03-07 | 日本特殊陶業株式会社 | Laser welding method and manufacturing method for gas sensor |
| CN108151678A (en) * | 2018-01-25 | 2018-06-12 | 国网浙江省电力有限公司电力科学研究院 | Portable porcelain bottle faces parallel and concentricity testing device and its detection method |
| CN109238212A (en) * | 2018-07-13 | 2019-01-18 | 进峰（江门）五金制造有限公司 | A kind of end cap concentricity automatic tester and detection method |
| CN211425358U (en) * | 2019-11-29 | 2020-09-04 | 浙江双元科技开发有限公司 | Tool for detecting coaxiality accurate position of laser scanning frame |
| CN111791018A (en) * | 2020-08-26 | 2020-10-20 | 陈辉 | Automatic assembling equipment for inner and outer barrels of central sleeve of shield cutter head |
| CN111998804A (en) * | 2020-09-02 | 2020-11-27 | 吕旭盼 | Detection apparatus for steering wheel plane degree and axiality |
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| CN112692427A (en) | 2021-04-23 |
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