Disclosure of Invention
The invention mainly aims to provide an edging and chamfering method for an ITO target, aiming at ensuring the production quality of the target.
According to a first aspect of the invention, an edging and chamfering method for an ITO target is provided, which relates to a grinding machine and a fixed platform; the fixed platform is provided with an inclined plane, and the target is placed on the inclined plane during processing; the fixed platform is provided with a clamping assembly for clamping the side surface of the target material, the inclined surface is provided with a guide groove for guiding the flow of the cutting fluid, and the guide groove extends from the higher end to the lower end of the inclined surface; the higher end of the diversion trench is an open end, and the lower end of the diversion trench is a closed end; the method comprises the following steps:
fixing the fixed platform on the grinding machine;
placing the target on the inclined surface, and clamping the side surface of the target through a clamping assembly to fix the target on a fixed platform; wherein, the target material covers the diversion trench;
starting a grinding machine and cutting fluid; the grinding wheel of the grinding machine and the cutting fluid move synchronously, and the grinding wheel grinds the top edge of the higher side of the target material to form a chamfer; before the target material is ground, the grinding wheel moves along the grinding direction for at least 1 stroke so as to enable the cutting fluid to fill the diversion trench;
after the grinding wheel finishes grinding the top edge of the higher side of the target material, closing the grinding machine and the cutting fluid;
and taking down the target material and removing burrs.
In a specific embodiment of the invention, the flow guide grooves are multiple, and the multiple flow guide grooves are crossed to form a fish-scale-shaped structure.
In a specific embodiment of the present invention, a connection portion between the side edge of the diversion trench along the diversion direction and the inclined surface is a chamfered structure.
In a specific embodiment of the invention, the rotation speed of the grinding wheel is 1500-1800 rpm, and the grinding feed amount is 0.015-0.03 mm.
In a particular embodiment of the invention, the target is removed by separating the clamping assembly from the target and blowing air into the open end of the flow-directing channel.
In a specific embodiment of the invention, the clamping assembly comprises a first clamping plate arranged on one side of the fixed platform, a second clamping plate arranged on the inclined surface, and a third clamping plate; the top of the first clamping plate is arranged higher than the inclined surface;
the first clamping plate and the second clamping plate are matched to clamp two opposite sides of the target material; the lower side of the target material is tightly propped against the third clamping plate.
In a particular embodiment of the invention, the second clamping plate is arranged on the inclined surface in a position-adjustable manner such that the distance between the first clamping plate and the second clamping plate is adjustable.
In a specific embodiment of the invention, a positioning block is arranged at the lower end of the fixed platform, and a positioning surface is arranged on one side of the positioning block close to the higher end of the fixed platform and is perpendicular to the inclined surface;
the target material positioning device further comprises a plurality of standard blocks, when the third clamping plate is installed, one side of each standard block abuts against the positioning surface, and the third clamping plate abuts against the other side of each standard block to enable the side face, matched with the target material, of the third clamping plate to be parallel to the positioning surface.
In a specific embodiment of the invention, the fixed platform comprises a supporting block and a fixed plate, wherein the fixed plate is detachably connected to the bottom of the supporting block; the inclined surface is arranged at the top of the supporting block;
the supporting block is made of PVC material; the fixing plate is made of metal materials which can be magnetically attracted.
One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:
in the invention, a target is fixed on a fixed platform, and before the target is ground, a grinding wheel is idle for at least 1 stroke along a grinding direction so as to enable cutting fluid to fill a diversion trench; the cutting fluid is an oily substance and can play a role in bonding the target material in the diversion trench; meanwhile, air between the target and the fixed platform can be squeezed away when the cutting fluid enters the diversion trench, and the target can be tightly pressed on the fixed platform by external pressure; the arrangement of the diversion trench replaces the external pressing block to tightly press the target on the fixed platform, so that the phenomenon of target cracking in the machining process can be effectively avoided, and the production quality of the target is ensured.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example 1
Referring to fig. 1 to 4, an edge grinding and chamfering method for an ITO target relates to a grinding machine and a fixed platform 1; the fixed platform 1 is provided with an inclined plane A, and the target material a is placed on the inclined plane A during processing; the fixed platform 1 is provided with a clamping assembly 2 for clamping the side surface of the target material a, the inclined surface A is provided with a guide groove 3 for guiding the flow of the cutting fluid B, and the guide groove 3 extends from the higher end to the lower end of the inclined surface A; the higher end of the diversion trench 3 is an open end for the cutting fluid to enter, and the lower end is a closed end to prevent the cutting fluid from flowing away;
in this embodiment, the target a has a square shape;
the method comprises the following steps:
step 1: fixing the fixed platform 1 on a grinding machine;
specifically, the fixed platform 1 is fixed by arranging an electromagnetic chuck or other fixing devices on the grinding machine;
step 2: placing a target material a on the inclined surface A, and clamping the side surface of the target material a through a clamping assembly 2 to fix the target material a on a fixed platform 1; wherein, the target material a covers the diversion trench 3;
specifically, the clamping assembly 2 comprises a first clamping plate 21 arranged on one side of the fixed platform 1, a second clamping plate 22 arranged on the inclined surface a, and a third clamping plate 23; the top of the first clamping plate 21 is arranged higher than the inclined surface A;
the first clamping plate 21 and the second clamping plate 22 are matched to clamp two opposite sides of the target material a; the lower side of the target material a abuts against the third clamping plate 23, the upper surface of the target material a does not need to be pressed tightly, and the target material a is prevented from cracking during processing while the clamping is stable.
And step 3: starting the grinding machine and the cutting fluid B; grinding the top edge of the higher side of the target material a by using a grinding wheel C of the grinding machine; before the target material a is ground, the grinding wheel C leaves 2 strokes along the grinding direction so that the cutting fluid B is filled in the diversion trench 3;
the stroke of the grinding wheel C refers to a path taken by the grinding wheel C for grinding a layer of target material a; cutting fluid B is sprayed to the contact position of the grinding wheel C and the target material a, and a liquid spraying pipe for spraying the cutting fluid B moves along with the grinding wheel C;
specifically, the rotating speed of the grinding wheel C is 1500-1800 rpm, the grinding feed amount is 0.015-0.03 mm, and normal operation of edge grinding and chamfering is guaranteed;
and 4, step 4: after the grinding wheel C finishes grinding the top edge of the higher side of the target material a, closing the grinding machine and the cutting fluid B;
and 5: and (5) taking down the target material a and removing burrs.
And (3) the edge grinding and chamfering work of the plurality of bevel edges of the target material a can be realized by replacing the bevel edge to be polished of the target material a and repeating the steps 2-5.
Specifically, when the target a is removed, the chuck assembly 2 is separated from the target a, and air is blown into the open end of the guide groove 3 to remove the target a.
In practical application, the sequence of steps may be adjusted according to actual production needs, which is not limited in this embodiment; the sequence of steps described in this embodiment is only one of specific implementation manners.
Before the target material a is ground, the grinding wheel C leaves 2 strokes along the grinding direction so that the cutting fluid B is filled in the diversion trench 3; the cutting fluid B enters the diversion trench 3, and can play a role in bonding the target material a in the diversion trench 3 because the cutting fluid B is an oily substance; meanwhile, the cutting fluid B enters the diversion trench 3, air between the target material a and the fixed platform 1 is squeezed away, and the target material a is pressed on the fixed platform 1 by external pressure; the arrangement of the diversion trench 3 replaces an external pressing block to tightly press the target material a on the fixed platform 1, so that the phenomenon that the target material a cracks in the machining process can be effectively avoided, and the production quality of the target material a is ensured;
particularly, grinding wheel C pushes down target a during grinding to can make the lower end of target a have a power that upwarps, cutting fluid B and guiding gutter 3 cooperation make target a adhere to on fixed platform 1 in order to offset the power that upwarps, guarantee the normal clear of target a processing, simultaneously, it has replaced the peripheral hardware briquetting, has avoided target a to appear the phenomenon of fracture when processing.
Preferably, the flow guide grooves 3 are multiple, and the multiple flow guide grooves 3 intersect to form a fish scale-shaped structure, which can increase the contact area between the cutting fluid B and the target material a, so that the target material a is more stably attached to the fixed platform 1 under the action of the cutting fluid B;
wherein the lower end of part of the guide grooves 3 is communicated with another guide groove 3.
More preferably, the connection between the side of the guiding groove 3 along the guiding direction and the inclined plane a is a chamfered structure D, that is, both sides of the guiding groove 3 are provided with the chamfered structure D, so as to further increase the contact area between the cutting fluid B and the target material a, and enable the target material a to be more stably attached to the fixed platform 1.
In the present embodiment, the second clamping plate 22 is disposed on the inclined surface a in a position-adjustable manner, so that the distance between the first clamping plate 21 and the second clamping plate 22 is adjustable, specifically, the second clamping plate 22 is detachably connected to the inclined surface a by a threaded connection; the second clamping plate 22 is provided with a kidney-shaped hole, the inclined surface A is provided with a plurality of threaded holes, the second clamping plate 22 is fixed on the inclined surface A in a way that bolts penetrate through the kidney-shaped hole to be matched with the threaded holes, and the position of the second clamping plate 22 can be adjusted in the fixing way, so that the fixing platform 1 can be suitable for target materials a with different lengths;
the first clamping plate 21 is fixed in the same way as the second clamping plate 22, so that the height of the first clamping plate 21 above the inclined surface a is adjustable.
In this embodiment, a positioning block is disposed at a lower end of the fixing platform 1, and a positioning surface E is disposed at a side of the positioning block close to a higher end of the fixing platform 1, and is perpendicular to the inclined surface a;
the fixture comprises a plurality of standard blocks 4, when the third clamping plate 23 is installed, one side of each standard block 4 abuts against the positioning surface E, the third clamping plate 23 abuts against the other side of each standard block 4, so that the side face, matched with the target material a, of the third clamping plate 23 is parallel to the positioning surface E, and the stability of clamping the target material a is guaranteed.
In this embodiment, still be equipped with one on the inclined plane a and dodge groove F, dodge groove F and set up in the below of locating surface E, if target a with locating surface E contacts and realizes pressing from both sides tightly, dodge groove F's setting can avoid knocking against bad target a when placing target a.
Preferably, the fixed platform 1 comprises a supporting block 11 and a fixed plate 12, wherein the fixed plate 12 is detachably connected to the bottom of the supporting block 11; the inclined surface A is arranged at the top of the supporting block 11;
the supporting block 11 is made of PVC material; the fixing plate 12 is made of a metal material which can be magnetically attracted;
specifically, the fixed platform 1 is fixed on the grinding machine through the electromagnetic chuck, namely, the fixed plate 12 is tightly sucked on the grinding machine by the electromagnetic chuck, and when the fixed plate 12 is worn, the fixed platform 1 can be ensured to normally work through replacing the new fixed plate 12 without integral replacement, so that the production cost can be saved;
the fixed plate 12 is provided with a handle, so that the fixed platform 1 can be conveniently transferred;
the fixing plate 12 is fixed with the supporting block 11 through bolt connection.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.