CN113996860A - Electric control high-speed circular saw based on inner boundary thermal stress rigidization and testing device thereof - Google Patents
Electric control high-speed circular saw based on inner boundary thermal stress rigidization and testing device thereof Download PDFInfo
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- CN113996860A CN113996860A CN202111269959.1A CN202111269959A CN113996860A CN 113996860 A CN113996860 A CN 113996860A CN 202111269959 A CN202111269959 A CN 202111269959A CN 113996860 A CN113996860 A CN 113996860A
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- circular saw
- saw blade
- thermal stress
- inner boundary
- vibration
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- 230000008646 thermal stress Effects 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 title claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004964 aerogel Substances 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000013021 overheating Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/12—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
- B23Q17/2457—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses an electric control high-speed circular saw based on inner boundary thermal stress rigidization and a testing device thereof. The inner boundary clamped by the circular saw blade is heated by the infrared carbon fiber heating pipe to generate thermal stress so as to improve the transverse bending rigidity, thereby improving the quality of the processed surface and reducing the saw blade vibration and noise in the cutting process. A nanometer aerogel heat insulation layer is added between the red copper plate and the spindle motor, so that the heat insulation effect is achieved, and the spindle motor is prevented from being damaged due to overheating. The vibration displacement of the circular saw blade is measured by a displacement sensor, and the vibration noise signal of the circular saw blade is measured by a sound sensor. The invention has the advantages of simple structure, clear principle, convenient operation and low cost.
Description
Technical Field
The invention relates to an electric control high-speed circular saw and a testing device thereof, in particular to an electric control high-speed circular saw and a device for measuring the temperature, vibration displacement and vibration noise thereof, wherein the temperature of the inner boundary of the circular saw is increased to generate suitable thermal stress, and then the transverse rigidity of the circular saw is improved to achieve the effects of vibration reduction and noise reduction.
Background
Vibration and noise of the outer circular saw mainly originate from three aspects: aerodynamic noise, blade vibration noise, and workpiece vibration noise, with blade vibration being the dominant noise source. Damping was initially carried out for circular saws by passive control, for example: the method comprises the steps of carrying out adaptive tension treatment by a mechanical processing or thermal processing method to generate a proper stress field in a saw blade body, forming a special hole or a special groove on a circular saw blade to destroy the symmetry of vibration to prevent the formation of a traveling wave, arranging a contact type or non-contact type guide device on the rotary circular saw, and adding a damping material on the surface of the rotary circular saw or arranging a shock absorber on a disc structure to increase damping energy consumption.
The former has pointed out many limitations of the passive control method of the external circular saw by conducting a detailed study on the vibration characteristics of the external circular saw, and has adopted active control for the first time to reduce the lateral vibration thereof. Later, researchers at home and abroad successively put forward a series of circular saw blade active control methods based on pole allocation, root locus variables, online spectrum analysis and the like. However, the existing active control method for the transverse vibration of the rotating circular disc needs an actuator with precise action and a complex algorithm, and a convenient and effective circular saw vibration active control technology is urgently needed to be provided.
According to the existing research results, a vibration control method which does not need accurate action execution can be applied to vibration reduction and noise reduction of the rotary circular saw. The method is a novel and reliable means for achieving vibration control by heating the inner boundary held by the circular saw blade to generate thermal stress to increase its lateral bending stiffness. The electric control high-speed circular saw based on the inner boundary thermal stress rigidization and the testing device thereof are designed by utilizing the technology, so that the problem of poor processing surface quality in the circular saw cutting process is solved, the cost of vibration and noise reduction is reduced, and the electric control high-speed circular saw has great theoretical research significance and market application value.
Disclosure of Invention
The invention aims to provide an electric control high-speed circular saw based on inner boundary thermal stress rigidization and a testing device thereof, wherein the inner boundary clamped by a circular saw blade is heated to generate thermal stress so as to improve the transverse bending rigidity of the circular saw blade, thereby improving the quality of a processed surface; the temperature of the saw blade is measured by an infrared temperature sensor, the vibration displacement is measured by a displacement sensor, and then a vibration noise signal is measured by a sound sensor.
The invention is realized by the following technical scheme:
an electric control high-speed circular saw based on internal boundary thermal stress rigidization and a testing device thereof mainly comprise four parts of driving, heating, feeding and measuring, wherein a circular saw blade is heated by a heating part, the rotation of the circular saw blade is controlled by a driving part, necessary parameters of the circular saw blade, such as temperature, vibration and the like, are measured by a measuring part, and then the feeding of a cut workpiece is completed by a feeding part.
The driving part is fixed on the motor base by a spindle motor through a bolt and then fixed on the substrate by the bolt.
The heating part mainly comprises an infrared carbon fiber heating pipe, a copper plate and a nano aerogel heat insulation layer. The infrared carbon fiber heating pipe is clamped by a pipe clamp, is fixed on the heating pipe mounting bracket through a nut and a screw, and is fixed on the substrate through a bolt. The red copper plate is attached to the axis of the circular saw blade to play a role in heat conduction. The red copper plate is attached to the axis of the circular saw blade, and the nano aerogel thermal insulation layer is clamped between the red copper plate and the spindle motor to prevent the spindle motor from being damaged due to overheating. The red copper plate, the circular saw blade, the red copper plate and the nano aerogel heat insulation layer are fixed on the spindle motor through nuts.
The feeding part mainly comprises an aluminum flat tongs, a sliding block, a sliding rail, a displacement sensor and a linear sliding table. The linear sliding table is fixed on the base plate through an L-shaped support by a bolt. The aluminum flat tongs are fixed on the sliding block by bolts through the flat tongs bracket, and the sliding block falls on the sliding rail. The displacement sensor is fixed on the substrate by a nut.
The measuring part mainly comprises an infrared temperature sensor, a sound sensor and a displacement sensor. The infrared temperature sensor is fixed on the base plate through the sensor bracket by bolts and is used for measuring the temperature of the red copper plate. The sound sensor and the displacement sensor are fixed on the base plate through the sensor bracket by bolts, and the vibration displacement and the vibration noise signal of the circular saw blade are measured.
The invention has the advantages that: the inner boundary through heating circular saw blade centre gripping produces thermal stress to improve its horizontal bending rigidity, thereby improve the processing surface quality, reduce the vibration and the noise of saw bit at the saw cutting in-process, and measure circular saw blade's vibration displacement with displacement sensor, measure vibration noise signal with sound transducer, measure the inner boundary temperature of saw bit with temperature sensor, whether it is suitable to confirm the inner boundary temperature of circular saw blade. The whole device has the advantages of simple structure, clear principle, low cost and the like.
Drawings
FIG. 1 is a general schematic of the invention.
Fig. 2 is a perspective assembly view of the heating portion and the measuring portion.
Fig. 3 is a perspective assembly view of the feeding portion.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the device is an electric control high-speed circular saw based on inner boundary thermal stress rigidization and a testing device thereof, and generates thermal stress by heating the inner boundary clamped by a circular saw blade so as to improve the transverse bending rigidity of the circular saw blade and improve the quality of a processing surface. The main components are as follows: the device comprises an infrared carbon fiber heating pipe (12), a circular saw blade (15), an infrared temperature sensor (18), a spindle motor (20), a sound sensor (5), a displacement sensor (6) and a linear sliding table structure (28).
Referring to fig. 1 and 2, a spindle motor (20) is fixed to a motor base by a bolt (19) and then fixed to a substrate (1) by a bolt (21), and the rotational speed of the spindle motor (20) is controlled by a controller.
Referring to fig. 1 and 2, an infrared carbon fiber heating tube (12) is clamped by a tube clamp (11), fixed on a bracket (2) through a nut (9) and a screw (10), and fixed on a substrate (1) through a bolt (7). The protection casing (8) make the heating effect better, have dustproof effect in addition, prevent that the smear metal from flying into and causing the cutting process accident. The temperature of the heating is controlled by a controller, and the influence on the rigidity of the circular saw blade at different temperatures is measured. The red copper plate (14) is attached to the axis of the circular saw blade (15) so that the racket-shaped infrared carbon fiber heating pipe heats the circular saw blade. The red copper plate (16) is attached to the axis of the circular saw blade (15), and the nano aerogel heat insulation layer (17) is clamped between the red copper plate (16) and the spindle motor (20) to prevent the spindle motor (20) from being damaged due to overheating. The copper plate (14), the circular saw blade (15), the copper plate (16) and the nano aerogel heat insulation layer (17) are fixed on the spindle motor (20) through the nut (13).
Referring to fig. 1 and 2, an infrared temperature sensor 18 is fixed to a substrate 1 by bolts 23 via a sensor holder 24, and measures the temperature of a copper plate 16. The sound sensor (5) and the displacement sensor (4) are fixed on the base plate (1) through the sensor bracket (3) by the bolt (6) to measure the vibration displacement and the vibration noise signal of the circular saw blade (15).
Referring to fig. 1 and 3, the linear sliding table (28) is fixed on the L-shaped bracket by a bolt (25) and then fixed on the base plate (1) by a bolt (26). The aluminum flat-nose pliers are fixed on a flat-nose pliers support (31) through bolts (30), then fixed on an L-shaped connecting frame (35) through bolts (33), and the L-shaped connecting frame (35) is connected with a linear sliding table (28) through a bolt (29) and then connected with a sliding block (38) through a bolt (34). The slide rail (40) is fixed on the substrate (1) by a bolt (36), and the displacement sensor (39) is fixed on the substrate (1) by a bolt (37).
Claims (4)
1. The utility model provides an automatically controlled high-speed circular saw and testing arrangement based on interior border thermal stress rigidization which characterized in that: the main body consists of an infrared carbon fiber heating pipe (12), a circular saw blade (15), red copper heat conducting plates (14) and (16), a spindle motor (20), an infrared temperature sensor (18), a sound sensor (5) and a displacement sensor (4); the circular saw blade (15) is heated by an infrared carbon fiber heating pipe (12), the temperature of the circular saw blade is measured by an infrared temperature sensor (18), the vibration displacement of the circular saw blade is measured by a displacement sensor (4), and the vibration noise signal of the circular saw blade is measured by a sound sensor (5).
2. An electric control high-speed circular saw and a testing device thereof based on inner boundary thermal stress rigidization as claimed in claim 1, wherein: two red copper plates are attached to the axis of the circular saw blade (15), the red copper plates (14) play a role in transferring heat, the heat received from the infrared carbon fiber heating pipe (12) is conducted to the saw blade, the red copper plates (16) are used for measuring the temperature of the inner boundary of the circular saw blade, and the infrared temperature sensor (18) does not need to adjust the thermal radiance parameter of the measuring process of the circular saw blade due to the replacement of the saw blade.
3. An electric control high-speed circular saw and a testing device thereof based on inner boundary thermal stress rigidization as claimed in claim 1, wherein: a nanometer aerogel heat insulation layer (17) is added between the red copper plate (16) and the spindle motor (20), so that the heat insulation effect is achieved, and the spindle motor is prevented from being damaged due to overheating.
4. An electric control high-speed circular saw and a testing device thereof based on inner boundary thermal stress rigidization as claimed in claim 1, wherein: the linear sliding table (28) drives the sliding block (38) to move on the sliding rail (40) through the L-shaped connecting frame (35), and then the displacement sensor (39) measures the feeding distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269959.1A CN113996860A (en) | 2021-10-29 | 2021-10-29 | Electric control high-speed circular saw based on inner boundary thermal stress rigidization and testing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269959.1A CN113996860A (en) | 2021-10-29 | 2021-10-29 | Electric control high-speed circular saw based on inner boundary thermal stress rigidization and testing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113996860A true CN113996860A (en) | 2022-02-01 |
Family
ID=79925200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111269959.1A Pending CN113996860A (en) | 2021-10-29 | 2021-10-29 | Electric control high-speed circular saw based on inner boundary thermal stress rigidization and testing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113996860A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148236A (en) * | 1976-12-21 | 1979-04-10 | Norsk Treteknisk Institutt | Method and a device for controlling thermal stresses in a power saw blade |
| US4567798A (en) * | 1984-10-04 | 1986-02-04 | Cetec Engineering Co., Inc. | Apparatus to maximize saw blade stiffness |
| CN102029653A (en) * | 2009-09-26 | 2011-04-27 | 鄂州市团结奇锐锯业有限公司 | Method for regenerating diamond circular saw blade substrate |
| CN104440343A (en) * | 2014-11-26 | 2015-03-25 | 广东工业大学 | Co-stator double-drive macro and micro integration high-speed precision movement one-dimensional platform for linear motor |
| CN105799067A (en) * | 2016-04-22 | 2016-07-27 | 北京微纳精密机械有限公司 | Novel endless diamond wire saw machine tool |
| CN207043520U (en) * | 2017-05-14 | 2018-02-27 | 惠州市欧野科技有限公司 | A kind of submerged arc welding carriage with pre- hot function |
| CN110045141A (en) * | 2019-05-29 | 2019-07-23 | 吉林大学 | A kind of device for the test of inside diameter slicer process |
| CN110209212A (en) * | 2019-07-05 | 2019-09-06 | 吉林大学 | A kind of High Speed Rotating Disks At Elevated inner edge semiconductor temperature-control stability maintenance vibration absorber |
| RU2702665C1 (en) * | 2019-04-17 | 2019-10-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" | Method to increase rigidity of circular saw |
-
2021
- 2021-10-29 CN CN202111269959.1A patent/CN113996860A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148236A (en) * | 1976-12-21 | 1979-04-10 | Norsk Treteknisk Institutt | Method and a device for controlling thermal stresses in a power saw blade |
| US4567798A (en) * | 1984-10-04 | 1986-02-04 | Cetec Engineering Co., Inc. | Apparatus to maximize saw blade stiffness |
| CN102029653A (en) * | 2009-09-26 | 2011-04-27 | 鄂州市团结奇锐锯业有限公司 | Method for regenerating diamond circular saw blade substrate |
| CN104440343A (en) * | 2014-11-26 | 2015-03-25 | 广东工业大学 | Co-stator double-drive macro and micro integration high-speed precision movement one-dimensional platform for linear motor |
| CN105799067A (en) * | 2016-04-22 | 2016-07-27 | 北京微纳精密机械有限公司 | Novel endless diamond wire saw machine tool |
| CN207043520U (en) * | 2017-05-14 | 2018-02-27 | 惠州市欧野科技有限公司 | A kind of submerged arc welding carriage with pre- hot function |
| RU2702665C1 (en) * | 2019-04-17 | 2019-10-09 | Федеральное государственное автономное образовательное учреждение высшего образования "Северный (Арктический) федеральный университет имени М.В. Ломоносова" | Method to increase rigidity of circular saw |
| CN110045141A (en) * | 2019-05-29 | 2019-07-23 | 吉林大学 | A kind of device for the test of inside diameter slicer process |
| CN110209212A (en) * | 2019-07-05 | 2019-09-06 | 吉林大学 | A kind of High Speed Rotating Disks At Elevated inner edge semiconductor temperature-control stability maintenance vibration absorber |
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| CB03 | Change of inventor or designer information |
Inventor after: Pei Yongchen Inventor after: Liu Zhonghao Inventor after: Yang Fan Inventor before: Pei Yongchen Inventor before: Yang Fan Inventor before: Liu Zhonghao |
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