CN111958047A - Band saw blade accumulated chip removing device and removing method - Google Patents
Band saw blade accumulated chip removing device and removing method Download PDFInfo
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- CN111958047A CN111958047A CN202010910004.9A CN202010910004A CN111958047A CN 111958047 A CN111958047 A CN 111958047A CN 202010910004 A CN202010910004 A CN 202010910004A CN 111958047 A CN111958047 A CN 111958047A
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- band saw
- saw blade
- electrolytic bath
- winding drums
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 56
- 239000003792 electrolyte Substances 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 claims abstract description 15
- 206010028980 Neoplasm Diseases 0.000 claims abstract description 9
- 238000004090 dissolution Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 239000003082 abrasive agent Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 15
- 238000003754 machining Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 15
- 230000033001 locomotion Effects 0.000 description 4
- 239000006061 abrasive grain Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- 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
- B23D63/00—Dressing the tools of sawing machines or sawing devices for use in cutting any kind of material, e.g. in the manufacture of sawing tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/06—Electrochemical machining combined with mechanical working, e.g. grinding or honing
- B23H5/08—Electrolytic grinding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a device and a method for removing accumulated scraps of a band saw blade, wherein the device comprises an electrolytic bath, an ultrasonic oscillator arranged at the lower end of the electrolytic bath and two winding drums capable of rotating in the circumferential direction; the electrolytic bath is internally provided with electrolyte and abrasive particles, the two winding drums are respectively arranged at two sides of the electrolytic bath and used for tensioning band saw blades, and the band saw blades can reciprocate between the two winding drums under the driving of the rotation of the winding drums; the electrolytic bath is provided with a channel for the band saw blade to pass through, and one end of the band saw blade with the saw teeth is immersed in the electrolyte when the band saw blade passes through the electrolytic bath. Therefore, the grinding material reciprocates in the electrolyte under the action of ultrasonic vibration to generate a mechanical grinding effect, and the mechanical grinding effect and the electrochemical dissolution effect of the electrolyte jointly construct the self-adaptive flexible ultrasonic auxiliary grinding material electrolytic machining so as to efficiently remove large-area complex accumulated chip tumors on the surface of the sawtooth.
Description
Technical Field
The invention relates to the technical field of tool deburring devices, in particular to a device and a method for removing accumulated chips of a band saw blade.
Background
With the rapid development of the manufacturing industry in China, the varieties and the number of raw materials, particularly sawing and blanking of metal materials, are increased rapidly. Therefore, the requirement of large-scale, rapid and high-precision sawing blanking can be met urgently, so that the performance requirement of a sawing cutter (such as a band saw blade) is higher and higher. Wherein the band saw blade is a direct sawing part, the surface quality of the band saw blade is thus decisive for the sawing quality and precision. When the band saw blade cuts a metal workpiece material at a high speed, the generated material chips are discharged to the outside of the material through a chip discharge groove of the band saw blade. However, in actual cutting, some chips are attached to the saw tooth grooves, the chips are blocked due to unsmooth chip removal, and a large amount of cutting heat is generated during cutting, so that the chips are fused, the saw teeth are softened, and built-up edges are generated. The existence of the built-up edge on the surface of the saw blade seriously affects the dimensional accuracy and the surface quality of the blanking of the metal workpiece, and further affects the service life of the band saw blade, thereby increasing the cost. Therefore, the key problem of removing accumulated scraps of the band saw blade in real time and efficiently in the sawing and blanking process is significant for breaking through the requirement that the existing sawing and blanking can realize large batch, high speed and high precision.
At present, the methods for removing the built-up tumors mainly comprise the following methods: (1) in the traditional mechanical processing, the built-up edge on the surface of the tool is removed by the grinding and polishing action of a grinding cutter; (2) and (4) electrolytic machining, namely removing built-up burrs by using the principle of electrochemical dissolution.
The existing surface burr removing process, particularly the process for removing accumulated bits and tumors on the surface of the sawteeth of a band saw blade, mainly has the following technical defects: (1) in the conventional machining, the machining is a contact machining mode, and the saw tooth part of the band saw blade is generally made of hard alloy with high hardness, so that large loss is caused to a cutter. In addition, the existing band saw blade generally consists of sawteeth in a sharp-angled shape, and the built-up edge in some sharp angles and narrow slits is difficult to remove by adopting a grinding process. Meanwhile, the band saw blade consists of a plurality of sawteeth, and accumulated chip tumors need to be removed quickly and efficiently, so that the traditional process for removing the accumulated chip tumors on the surfaces of the sawteeth of the band saw blade by machining cannot meet the actual requirements. (2) Electrolytic machining, the material is removed in an electrochemical dissolution mode, the current density at the sharp corner is high, and the removal speed of material dissolution is high. However, the built-up edge is randomly distributed, so that it is difficult to effectively remove the built-up edge formed by randomly distributing the built-up edge on the surface of the sawtooth.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for removing accumulated bits and tumors of a band saw blade, which can efficiently, uniformly and continuously remove large-area and complex accumulated bits and tumors on the surface of a saw tooth.
In order to solve the technical problems, the invention adopts the following technical scheme:
a device for removing accumulated scraps of a band saw blade comprises an electrolytic tank, an ultrasonic oscillator and two winding drums capable of rotating in the circumferential direction, wherein the ultrasonic oscillator is arranged at the lower end of the electrolytic tank; the electrolytic bath is internally provided with electrolyte and abrasive particles, the two winding drums are respectively arranged at two sides of the electrolytic bath and used for tensioning the band saw blade, and the band saw blade can reciprocate between the two winding drums under the driving of the rotation of the winding drums; the electrolytic cell is provided with a channel for a band saw blade to pass through, and when the band saw blade passes through the electrolytic cell, one end of the band saw blade with sawteeth is immersed in the electrolyte.
Therefore, the grinding material reciprocates in the electrolyte under the action of ultrasonic vibration to generate a mechanical grinding effect, and the mechanical grinding effect and the electrochemical dissolution effect of the electrolyte jointly construct the self-adaptive flexible ultrasonic auxiliary grinding material electrolytic machining so as to efficiently remove large-area complex accumulated chip tumors on the surface of the sawtooth.
In the process of removing built-up burrs, the abrasive under the action of ultrasonic waves is self-adaptive to the shape of the built-up burrs on the surface of the sawtooth, and generates a stable dynamic contact type grinding and polishing effect on the sawtooth in the relative movement process with the surface of the sawtooth, and an electrolytic machining mode is provided while the sawtooth is flexibly polished in a self-adaptive sawtooth shape. Obviously, the self-adaptive flexible dynamic abrasive contact type electrolytic machining is not only suitable for treating the chip built-up edges on the surfaces of the sawteeth, but also basically has equal removal probability at all positions of the chip built-up edges on the surfaces of the sawteeth in the chip built-up edge removal process, so that the uniformity and the continuity of the chip built-up edges on the surfaces of the sawteeth are effectively improved, the chip built-up edges, burrs and other adverse influence factors are substantially removed, and the blanking quality is improved.
And aiming at the removal of the large-area complicated accumulated chip on the surface of the sawtooth, the band saw blade is only required to do simple reciprocating motion in a working box provided with an ultrasonic vibration generator, electrolyte and grinding materials, and the large-area complicated accumulated chip on the surface of the sawtooth can be efficiently removed without additional complicated path planning and design. This undoubtedly simplifies the operation process, improves the efficiency of removing built-up debris, and reduces the cost.
As a further improvement of the above technical solution:
the two winding drums are respectively used for winding two ends of the band saw blade so that the band saw blade is tensioned between the two winding drums, and one winding drum or the two winding drums can drive the band saw blade to be loosened from one winding drum and wound on the other winding drum when rotating in the circumferential direction; or the like, or, alternatively,
the band saw blade is tensioned on the two winding drums after the head end and the tail end of the band saw blade are connected, and the band saw blade can rotate under the driving of the winding drums.
The electrolytic bath is an electric conductor or an electrode is arranged in the electrolytic bath, the band saw blade is electrically connected with a positive electrode of a power supply, and the electrolytic bath or the electrode in the electrolytic bath is electrically connected with a negative electrode of the power supply.
The electrolytic cell is communicated with an electrolyte tank through a pipeline, and a liquid pump is arranged on the pipeline for communicating the electrolytic cell with the electrolyte tank.
And a filter is arranged on a pipeline for communicating the electrolyte tank with the liquid pump.
The winding drum and the ultrasonic oscillator are both arranged on a base.
The winding drum is in transmission connection with a rotary driving mechanism, and the rotary driving mechanism is electrically connected with a controller. The rotating speed of the winding drum is controlled by a control system to adjust the efficiency and quality of the built-up edge removal.
And an abrasive material supply device for putting abrasive particles into the electrolytic bath is arranged above the electrolytic bath.
The abrasive particles are diamond particles. The abrasive material is composed of diamond particles, and the diamond particles can provide excellent self-adaptive flexibility under the action of ultrasonic vibration.
As a general inventive concept, the present invention also provides a method for removing accumulated dust on a band saw blade using the above apparatus, comprising the steps of:
the two ends of the band saw blade are respectively wound on the corresponding winding drums, the winding drums rotate to enable the band saw blade to pass through the electrolytic bath at a set speed, the ultrasonic oscillator is started to enable abrasive particles in the electrolytic bath to fluctuate, and the electrolytic bath is powered on, so that accumulated scraps on saw teeth of the band saw blade are removed through electrolytic dissolution and abrasive particle grinding.
Compared with the prior art, the invention has the advantages that:
1. according to the band saw blade accumulated chip removing device, the abrasive is self-adaptive to the shape and the distribution position of the accumulated chip on the surface of the sawtooth under the ultrasonic action, and generates a stable dynamic contact type grinding and polishing effect on the sawtooth in the relative movement process with the surface of the sawtooth, and an electrolytic machining mode is provided while the self-adaptive sawtooth shape is flexibly polished. Obviously, the self-adaptive flexible dynamic abrasive contact type electrolytic machining is not only suitable for treating the chip built-up edges on the surfaces of the sawteeth, but also basically has equal removal probability at all positions of the chip built-up edges on the surfaces of the sawteeth in the chip built-up edge removal process, which undoubtedly effectively improves the uniformity and continuity of removing the chip built-up edges on the surfaces of the sawteeth, thereby substantially removing the chip built-up edges, burrs and other adverse influence factors and improving the blanking quality.
2. According to the device for removing the accumulated scraps on the band saw blade, disclosed by the invention, aiming at the removal of the accumulated scraps on the large-area complicated sawtooth surface, the band saw blade only needs to make simple reciprocating motion in a working box provided with an ultrasonic vibration generator, electrolyte and grinding materials, and the large-area complicated accumulated scraps on the sawtooth surface can be efficiently removed without additional complicated path planning and design. This undoubtedly simplifies the operation process, improves the efficiency of removing built-up debris, and reduces the cost.
Drawings
Fig. 1 is a schematic structural view of a band saw blade built-up chip removing device according to the present invention.
Illustration of the drawings: 1. a controller; 2. an abrasive material supply device; 3. a reel; 4. a band saw blade; 5. an electrolyte tank; 6. an electrolytic cell; 7. an ultrasonic oscillator; 8. a power source; 9. a liquid pump; 10. and (3) a filter.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
Example (b):
as shown in fig. 1, the device for removing accumulated dust from a band saw blade of the present embodiment includes a controller 1, an abrasive supply device 2, an electrolyte tank 5, an electrolytic bath 6, a power supply 8, a liquid pump 9, a filter 10, an ultrasonic oscillator 7 disposed at a lower end of the electrolytic bath 6, and two circumferentially rotatable reels 3.
The electrolyte tank 5, the filter 10, the liquid pump 9 and the electrolytic bath 6 are connected in sequence through pipelines. The electrolyte tank 5 continuously supplies and updates electrolyte to the electrolytic bath 6 through the liquid pump 9; the abrasive supply device 2 is provided above the electrolytic bath 6 to supply abrasive grains into the electrolytic bath 6 so that the electrolytic bath 6 is filled with the electrolyte and the abrasive grains.
In this embodiment, the abrasive grains are diamond grains.
And measuring the electrochemical polarization curve of the sawtooth and the built-up edge so as to determine electrolyte suitable for electrochemically dissolving the built-up edge or mixed electrolyte formed by combining a plurality of types of electrolysis.
Two reels 3 are respectively arranged on two sides of the electrolytic bath 6, and both the reels 3 and the ultrasonic oscillator 7 are arranged on a base. The winding drum 3 is in transmission connection with a rotary driving mechanism, and the rotary driving mechanism is electrically connected with the controller 1. The two winding drums 3 are respectively used for winding two ends of the band saw blade 4 so that the band saw blade 4 is tensioned between the two winding drums 3, and when one winding drum 3 or the two winding drums 3 rotate in the circumferential direction, the band saw blade 4 can be driven to be loosened from one winding drum 3 and wound on the other winding drum 3; the electrolytic bath 6 is provided with a passage for the band saw blade 4 to pass through, and when the band saw blade 4 passes through the electrolytic bath 6, one end of the band saw blade 4 with sawteeth is immersed in the electrolyte.
As shown in fig. 1, the two winding drums have the same circumferential rotation direction, and the winding directions of the band saw blade 4 on the two winding drums are opposite, so that the band saw blade 4 is driven to be unwound from one winding drum 3 and wound on the other winding drum 3 when the two winding drums rotate in the circumferential direction.
In this embodiment, the electrolytic bath 6 is an electric conductor, the band saw blade 4 is electrically connected to the positive electrode of the power supply 8, and the electrolytic bath 6 is electrically connected to the negative electrode of the power supply 8.
In the process of removing the built-up edge on the surface of the sawtooth, firstly, the band saw blade 4 winds two ends of the band saw blade 4 on the corresponding winding drums 3 respectively, and the rotation speed of the winding drums 3 is adjusted under the control of the controller 1, so that the band saw blade 4 passes through the electrolytic bath 6 filled with the grinding material and the electrolyte at a set speed. And the wall of the electrolytic cell 6 is connected with the negative electrode of a power supply, and the band saw blade 4 is connected with the positive electrode of the power supply, so that accumulated crumbs are quickly removed under the grinding action of electrolytic dissolution and ultrasonic vibration auxiliary vibration grinding materials. In the removing process, the electrolyte is continuously updated through the electrolyte supply system, and the grinding materials are continuously supplied through the grinding material supply device 2, so that the uniformity and the continuity of the accumulated chip removing process are ensured.
The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.
Claims (10)
1. The band saw blade accumulated chip removing device is characterized by comprising an electrolytic bath (6), an ultrasonic oscillator (7) and two winding drums (3) capable of rotating in the circumferential direction, wherein the ultrasonic oscillator (7) is arranged at the lower end of the electrolytic bath (6); electrolyte and abrasive particles are arranged in the electrolytic bath (6), the two winding drums (3) are respectively arranged on two sides of the electrolytic bath (6), the two winding drums (3) are used for tensioning the band saw blade (4), and the band saw blade (4) can reciprocate between the two winding drums (3) under the driving of the rotation of the winding drums (3); the electrolytic cell (6) is provided with a channel through which a band saw blade (4) can pass, and when the band saw blade (4) passes through the electrolytic cell (6), one end of the band saw blade (4) with sawteeth is immersed in the electrolyte.
2. The device for removing the accumulated scraps of the band saw blade according to claim 1, wherein the two winding drums (3) are respectively used for winding two ends of the band saw blade (4) so as to tension the band saw blade (4) between the two winding drums (3), and one winding drum (3) or the two winding drums (3) can drive the band saw blade (4) to be loosened from one winding drum (3) and wound on the other winding drum (3) when rotating in the circumferential direction; or the like, or, alternatively,
the band saw blade (4) is tensioned on the two winding drums (3) after the head end and the tail end of the band saw blade are connected, and the band saw blade (4) can rotate under the driving of the winding drums (3).
3. The device for removing the built-up edge of the band saw blade according to claim 1, wherein the electrolytic bath (6) is an electric conductor or an electrode is arranged in the electrolytic bath (6), the band saw blade (4) is electrically connected with a positive electrode of a power supply (8), and the electrolytic bath (6) or the electrode in the electrolytic bath (6) is electrically connected with a negative electrode of the power supply (8).
4. The device for removing the built-up edge of the band saw blade according to claim 1, wherein the electrolytic cell (6) is communicated with an electrolyte tank (5) through a pipeline, and a liquid pump (9) is arranged on the pipeline for communicating the electrolytic cell (6) with the electrolyte tank (5).
5. The device for removing the built-up edge of the band saw blade according to claim 4, wherein a filter (10) is arranged on a pipeline for communicating the electrolyte tank (5) and the liquid pump (9).
6. The device for removing the built-up edge of the band saw blade according to any one of claims 1 to 5, wherein the winding drum (3) and the ultrasonic oscillator (7) are both arranged on a base.
7. The device for removing accumulated scraps from a band saw blade according to any one of claims 1-5, wherein the winding drum (3) is in transmission connection with a rotary driving mechanism, and the rotary driving mechanism is electrically connected with a controller (1).
8. The device for removing the built-up edge of the band saw blade according to any one of claims 1 to 5, wherein an abrasive material supply device (2) for putting abrasive particles into the electrolytic bath (6) is arranged above the electrolytic bath (6).
9. The device for removing buildup with a saw blade according to any one of claims 1 to 5, wherein said abrasive particles are diamond particles.
10. A method for removing built-up edges of band saw blades by using the device according to any one of claims 1 to 9, comprising the following steps:
the two ends of the band saw blade (4) are respectively wound on the corresponding winding drums (3), the winding drums (3) rotate to enable the band saw blade (4) to pass through the electrolytic bath (6) at a set speed, the ultrasonic oscillator (7) is started to enable abrasive particles in the electrolytic bath (6) to fluctuate, the electrolytic bath (6) is powered on, and therefore accumulated scrap tumors on sawteeth of the band saw blade (4) are removed through electrolytic dissolution and abrasive particle grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910004.9A CN111958047A (en) | 2020-09-02 | 2020-09-02 | Band saw blade accumulated chip removing device and removing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910004.9A CN111958047A (en) | 2020-09-02 | 2020-09-02 | Band saw blade accumulated chip removing device and removing method |
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| CN111958047A true CN111958047A (en) | 2020-11-20 |
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|---|---|---|---|---|
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| CN103962642A (en) * | 2014-04-23 | 2014-08-06 | 杭州电子科技大学 | Metal band saw ultrasound saw cutting machining method and device |
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2020
- 2020-09-02 CN CN202010910004.9A patent/CN111958047A/en active Pending
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|---|---|---|---|---|
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