CN115648065A - Combined electrolytic dressing device for ELID grinding - Google Patents
Combined electrolytic dressing device for ELID grinding Download PDFInfo
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- CN115648065A CN115648065A CN202211427505.7A CN202211427505A CN115648065A CN 115648065 A CN115648065 A CN 115648065A CN 202211427505 A CN202211427505 A CN 202211427505A CN 115648065 A CN115648065 A CN 115648065A
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- cover body
- grinding
- grinding wheel
- electrolytic dressing
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Abstract
The invention discloses a combined electrolytic dressing device for ELID grinding, which comprises a grinding wheel cover body, a cover body door, a cover body bottom plate, a vertical linear guide rail, an axial dovetail groove guide rail, a sliding block, a screw rod, a locking nut, an adjusting rotating nut, an electrolytic dressing electrode, an electric brush, a wiring terminal and related fixed parts. The adjusting rotating nut on the adjusting slide block drives the bottom plate of the cover body to move up and down, so that the electrolytic dressing electrode moves radially relative to the grinding wheel; the adjusting rotating nut on the back of the adjusting cover body drives the bottom plate of the cover body to move back and forth, so that the electrolytic dressing electrode moves axially relative to the grinding wheel; the contact pressure between the brush conducting rod and the grinding wheel matrix surface is adjusted by adjusting the thickness of the gasket. The device has simple, flexible and convenient structure, can meet the accurate control of the ELID grinding on the gap between the electrolytic dressing electrode surface and the grinding wheel grinding surface, and can also meet the requirement of convenient disassembly for the transformation of a grinding machine matched with an ELID grinding process system.
Description
Technical Field
The invention relates to a combined electrolytic dressing device for ELID grinding, belonging to the technical field of precise ultraprecise forming grinding processing.
Background
The high-efficiency precision machining technology of the difficult-to-machine materials is an important branch of the precision machining technology, and has important significance for developing advanced scientific technologies such as aerospace, national defense and military industry, information, microelectronics, photoelectrons and the like. At present, the traditional grinding is used as a main processing means to process difficult-to-process materials, the defects of large size change of a grinding tool and low processing efficiency exist, and then the processing precision and the size and quality consistency of products are reduced. The ELID grinding technology is a new precise and ultra-precise processing technology formed by combining grinding wheel online electrolytic dressing with precise grinding and polishing technologies, and according to an electrochemical principle, the metal-based superhard grinding wheel is subjected to online electrolytic dressing, so that the grinding wheel always keeps high profile precision and good grinding performance in the grinding process, the problems that the size of a grinding tool is large in change and the grinding state is unstable in the traditional grinding processing, the product quality is difficult to guarantee can be solved, and the processing precision and the processing efficiency of products are improved. For the ELID grinding system, a simple and efficient device needs to be developed to realize the position adjustment between the electrolytic sharpening electrode and the grinding wheel.
Disclosure of Invention
The device of the invention is a combined electrolytic dressing device which is transformed on the traditional grinding processing equipment based on an ELID grinding process system.
The technical scheme adopted by the invention is a combined electrolytic dressing device for ELID grinding, which comprises a cover body, a cover body door, a cover body bottom plate, a linear vertical guide rail, an axial dovetail groove guide rail, a slide block, a screw rod, an L-shaped insulating plate, a locking nut, an adjusting rotating nut, an electrolytic dressing electrode, an electric brush, a wiring terminal and related fixed parts; the cover body, the cover body door, the cover body bottom plate, the slider, the radial adjusting rotating nut and the axial adjusting rotating nut are made of gray cast iron, the L-shaped insulating plate and the base plate below the electrolytic dressing electrode are made of acrylic plates, the elastic gasket is made of rubber, and other components are standard components. The cover body bottom plate, the vertical linear guide rail, the screw and the radial adjusting rotary nut are used for adjusting the radial distance between the electrode and the grinding wheel; the cover body bottom plate, the axial dovetail groove guide rail, the screw and the axial adjusting rotary nut are used for adjusting the axial distance between the electrolytic dressing electrode and the grinding wheel; the elastic gasket and the bolt and the nut are used for adjusting the contact force between the electric brush and the grinding wheel. The cover body door is fixed above the cover body through an upper locking device, and the axial dovetail groove guide rail is fixed on the left side of the cover body door and used for axial movement of the electrolytic sharpening electrode; the electrolytic dressing electrode is fixed on a cover body bottom plate through an L-shaped insulating plate, a radial screw on the cover body bottom plate is fixed on a sliding block through two vertical linear guide rails, the sliding block is fixed on the left side of a cover body door through an axial dovetail groove guide rail and a screw on the rear side, and a linear electric brush is fixed on the cover body door. The electrolytic dressing electrode is connected with the negative electrode of a power supply, the carbon brush is connected with the positive electrode of the power supply, and the special ELID grinding fluid is sprayed between the electrolytic dressing electrode and the grinding wheel to form a closed loop, so that the online electrolytic dressing of the metal-based grinding wheel is realized.
The technical scheme adopted by the invention for solving the technical problems is as follows: firstly, the radial and axial distances between the electrolytic dressing electrode and the grinding wheel can be adjusted online, accurately and stably, so that the whole surface of the grinding wheel can be fully electrolytically dressed; the cover body bottom plate fixed by the electrolytic dressing electrode is of a combined design, and is very convenient for mounting the electrode and dismounting and replacing the electrode; the arc part of the electrode is provided with three grooves, so that grinding fluid can be filled in the grinding surface, and the processing quality is improved; secondly, the contact force between the electric brush and the grinding wheel is adjustable, the abrasion of the electric brush is reduced as much as possible on the premise of ensuring the normal conduction of the electric brush, and the service life is prolonged. The above measures ensure good electrolytic dressing effect of the grinding wheel, high processing efficiency, simple, safe and convenient operation, and finally improve the quality of the workpiece and enhance the consistency of the quality. The grinding machine can be modified on a common grinding machine in a matching way, and the machining precision grade of the common grinding machine is improved.
The device has the advantages that the axial and radial distances between the electrolytic dressing electrode and the grinding wheel can be adjusted, so that the radial middle section of the grinding wheel is always overlapped with the radial middle section of the electrolytic dressing electrode in the grinding process, the distance between the surface of the grinding wheel and the surface of the electrolytic dressing electrode is always kept in an ideal interval of 0.5mm-1mm, the grinding surface of the grinding wheel can be fully electrolytically dressed, the grinding wheel is always kept in a sharp state in the grinding process, the grinding state is stable, and the purposes of high product processing efficiency, high precision and high quality consistency are achieved. The device is designed in a combined mode, and is very convenient to install, adjust, disassemble and replace a matched ELID process system; the device has flexibility, is suitable for being matched and transformed on grinding machines with different structural layouts, and is simple to operate and high in practicability.
Drawings
FIG. 1 is an external view of an electrolytic dressing apparatus.
FIG. 2 is a view showing the internal structure of the electrolytic sharpening device.
Fig. 3 is a rear view and a side view of the electrolytic sharpening device.
Fig. 4 is a cover bottom plate.
Fig. 5 is a slider.
Fig. 6 is an electrolytic sharpening electrode.
FIG. 7 is a linear brush and resilient pad.
In fig. 2: 1-cover body, 2-grinding wheel, 3-radial adjusting rotating nut, 4-radial screw rod, 5-axial adjusting rotating nut, 6-axial screw rod, 7-vertical linear guide rail, 8-slide block, 9-cover body bottom plate, 10-axial dovetail groove guide rail, 11-case locking buckle, 12-locking screw rod, 13-cover body door locking nut, 14-elastic gasket, 15-linear electric brush, 16-electrolytic dressing electrode, 17-wiring terminal, 18-L insulating plate and 19-locking bolt
In FIG. 3: 20-cover body door.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings and examples. A combined electrolytic dressing device for ELID grinding comprises a cover body 1, a grinding wheel 2, a cover body door 20, a sliding block 8, an axial dovetail groove guide rail 10, a vertical linear guide rail 7, an electrolytic dressing electrode 16, a cover body bottom plate 9, an L-shaped insulating plate 18, a radial adjusting rotary nut 3, an axial screw 6, a radial screw 4, an axial adjusting rotary nut 5, a locking bolt 19, an electric brush 15 and related fixed parts.
The cover body door 20 is fixed on the cover body 1 through two hinges at the left side of the cover body, and the closing and locking of the cover body door and the cover body are realized through a locking buckle 11 and a cover body door locking nut 13; the L-shaped insulating plate 18 is fixed to the cover body bottom plate 9 through a locking bolt 19, the electrolytic dressing electrode 16 is fixed to the cover body bottom plate 9 through two L-shaped insulating plates 18, the cover body bottom plate 9 is fixed to the sliding block 8 through two vertical linear guide rails 7 and a radial screw 4 on the cover body bottom plate, the screw 4 can be driven to move up and down along the vertical linear guide rails 7 through the rotation of the radial adjusting rotary nut 3, the cover body bottom plate 9 is driven to move up and down along the grinding wheel in the radial direction, and therefore the gap between the surface of the electrolytic dressing electrode 16 and the grinding surface of the grinding wheel 2 is adjusted; the sliding block 8 is fixed on the left side of the cover body 1 through an axial dovetail groove guide rail 10 and an axial screw 6, the sliding block 8 is driven to move back and forth along the axial direction of the grinding wheel through the rotation of an axial adjusting rotating nut 5, the sliding block 8 moves back and forth along the axial direction of the grinding wheel to drive the cover body bottom plate 9 and the electrolytic dressing electrode 16 to move back and forth along the axial direction of the grinding wheel, and the coincidence of the axial middle section of the grinding wheel and the axial middle section of the electrolytic dressing electrode is ensured. The in-line brush 15 is fixed to the cover body door 20 by a bolt.
After the installation of each component of the device is finished, the cover body 1 is fixed on the grinding head of the grinding machine. Firstly, the electrolytic sharpening electrode 16 is connected to the negative pole of a power supply through a connecting terminal, the electric brush 15 is connected with the positive pole of the power supply through the connecting terminal, the elastic gasket 14 between the electric brush 15 and the cover body door 20 is adjusted according to the contact condition between the electric brush 15 and the grinding wheel 2, and the contact force between the carbon rod and the grinding wheel 2 is moderate by increasing or decreasing the quantity of the gaskets or replacing the gaskets with different thicknesses. Secondly, the radial adjusting rotary nut 3 is rotated to realize the stable radial movement of the electrolytic dressing electrode 16 relative to the grinding wheel 2, so that the distance between the grinding surface of the grinding wheel 2 and the arc-shaped surface of the electrolytic dressing electrode is adjusted to be 0.5mm-1mm; the stable axial forward and backward movement of the electrolytic dressing electrode 16 relative to the grinding wheel 2 is realized by rotating the axial adjusting rotary nut 5, and the coincidence of the axial middle section of the grinding wheel 2 and the axial middle section of the electrolytic dressing electrode 16 is ensured. The thread pitches of the two adjusting rotating nuts (3 and 5) are both 0.3mm, and the position adjustment of the electrolytic dressing electrode 16 relative to the grinding wheel 2 can be accurately controlled. Then, a special ELID grinding fluid is injected into a cavity formed by the arc-shaped surface of the electrolytic dressing electrode 16 and the grinding surface of the grinding wheel 2, so that the cavity is filled with the electrolytic grinding fluid, and an electrolytic cell closed loop is formed. And finally, turning on a power switch to start processing the workpiece.
The bottom plate of the cover body is driven to move up and down through an adjusting rotating nut on the adjusting slide block, so that the electrolytic dressing electrode moves radially relative to the grinding wheel; the adjusting rotating nut on the back of the adjusting cover body drives the bottom plate of the cover body to move back and forth, so that the electrolytic dressing electrode moves axially relative to the grinding wheel; the contact pressure between the brush conducting rod and the grinding wheel matrix surface is adjusted by adjusting the thickness of the gasket. The electrolytic dressing electrode is fixed on the cover body bottom plate by a bolt, the cover body bottom plate and the cover body are connected into a whole in a combined connection mode, so that the electrolytic dressing electrode is convenient to adjust relative to the grinding surface clearance of the grinding wheel, and meanwhile, the electrolytic dressing electrode is convenient to install and detach in a manner of being matched with an ELID grinding process system to be modified by a grinding machine. The adjusting device is positioned outside the grinding wheel cover body, and has the advantages of good waterproofness, high safety and long service life. The device has simple, flexible and convenient structure, can meet the accurate control of the ELID grinding on the gap between the electrolytic dressing electrode surface and the grinding wheel grinding surface, and can also meet the requirement of convenient disassembly for the transformation of a grinding machine matched with an ELID grinding process system.
Claims (4)
1. A combined electrolytic sharpening device for ELID grinding, characterized in that: the cover body door is fixed on the cover body through two hinges on the side of the cover body, and the cover body door and the cover body are closed and locked through a locking buckle and a cover body door locking nut; the L-shaped insulating plates are fixed to the cover body bottom plate through locking bolts, the electrolytic dressing electrode is fixed to the cover body bottom plate through the two L-shaped insulating plates, the cover body bottom plate is fixed to the sliding block through two vertical linear guide rails and a radial screw rod on the cover body bottom plate, the screw rod is driven to move up and down along the vertical linear guide rails through rotation of the radial adjusting rotary nut, the cover body bottom plate is driven to move up and down along the radial direction of the grinding wheel, and therefore the gap between the surface of the electrolytic dressing electrode and the ground surface of the grinding wheel is adjusted; the sliding block is fixed on the side part of the cover body through an axial dovetail groove guide rail and an axial screw, the sliding block is driven to move back and forth along the axial direction of the grinding wheel by axially adjusting the rotation of the rotating nut, and the sliding block moves back and forth along the axial direction of the grinding wheel to drive the cover body bottom plate and the electrolytic dressing electrode to move back and forth along the axial direction of the grinding wheel, so that the axial middle section of the grinding wheel is ensured to be coincident with the axial middle section of the electrolytic dressing electrode; the linear electric brush is fixed on the cover body door through a bolt.
2. A combined electrolytic sharpening device for ELID grinding according to claim 1, characterized in that: the radial distance between the electrolytic dressing electrode and the grinding surface of the grinding wheel is 0.5mm-1mm.
3. A combined electrolytic sharpening device for ELID grinding according to claim 1, characterized in that: the electrolytic dressing electrode can move back and forth relative to the grinding wheel in the axial direction by rotating the axial adjusting rotary nut, and the axial middle section of the grinding wheel is ensured to be coincident with the axial middle section of the electrolytic dressing electrode.
4. A combined electrolytic sharpening device for ELID grinding according to claim 1, characterized in that: the thread pitches of the two adjusting rotary nuts are both 0.3mm, so that the position adjustment of the electrolytic dressing electrode relative to the grinding wheel can be accurately controlled; and injecting ELID special grinding fluid into a cavity formed by the arc-shaped surface of the electrolytic dressing electrode and the grinding surface of the grinding wheel, so that the cavity is filled with the electrolytic grinding fluid to form an electrolytic battery closed loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211427505.7A CN115648065A (en) | 2022-11-14 | 2022-11-14 | Combined electrolytic dressing device for ELID grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211427505.7A CN115648065A (en) | 2022-11-14 | 2022-11-14 | Combined electrolytic dressing device for ELID grinding |
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| Publication Number | Publication Date |
|---|---|
| CN115648065A true CN115648065A (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211427505.7A Pending CN115648065A (en) | 2022-11-14 | 2022-11-14 | Combined electrolytic dressing device for ELID grinding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116214291A (en) * | 2023-03-20 | 2023-06-06 | 江苏飞象数控设备有限公司 | Centerless grinding machine and grinding assembly thereof |
-
2022
- 2022-11-14 CN CN202211427505.7A patent/CN115648065A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116214291A (en) * | 2023-03-20 | 2023-06-06 | 江苏飞象数控设备有限公司 | Centerless grinding machine and grinding assembly thereof |
| CN116214291B (en) * | 2023-03-20 | 2023-09-15 | 江苏飞象数控设备有限公司 | Centerless grinding machine and grinding assembly thereof |
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