A laser groove plate groove inner mirror polishing device and a polishing method thereof

Abstract

The application discloses a laser slot plate in-slot mirror polishing device, which comprises a mirror polishing cutter for realizing mirror polishing of the bottom mirror of a laser slot to be polished and a polishing liquid automatic adding device for automatically storing and adding polishing liquid to the mirror polishing cutter; the mirror polishing cutter comprises a wool felt grinding wheel, and a mirror polishing surface is arranged on the wool felt grinding wheel; a secondary pressurization and liquid pushing integrated mechanism is arranged in the polishing liquid automatic adding device. The application further discloses a polishing method using the laser slot plate in-slot mirror polishing device. The laser slot plate in-slot mirror polishing device can meet the requirement of automatic mirror polishing of the bottom mirror of a laser slot on an existing laser slot plate, has high polishing precision, is efficient and fast, and can effectively improve the finished product rate of mirror polishing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic polishing, in particular to a laser slot plate in-slot mirror polishing device and polishing method. BACKGROUND

[0002] The laser slot plate is mainly used in domestic high-power precision laser cutting equipment. After the laser is emitted by the laser emitter, it is guided through the laser slot and gathered to the laser cutting head, so as to realize high-power precision laser cutting. As a key component of the equipment, the laser slot plate has good high-temperature resistance, wear resistance, corrosion resistance and high thermal conductivity, etc. It can meet the environmental requirements of ultra-high temperature of the laser cutting equipment, especially the laser slot plate in-slot mirror polishing has the characteristics of low loss, which has a decisive influence on the cutting power of the laser cutting equipment.

[0003] At present, the size of the ceramic laser slot plate series product is between 300*50*4.3T and 500*50*4.3T, which is applied in 30W-55W laser cutting equipment. The product surface has three laser slots with a width of 2.8mm and a depth of 2.8mm. The slot width is relatively narrow, and the slot bottom requires mirror effect with roughness Ra0.2 or less. The polishing difficulty is high, and the polishing effect is poor. The manual wool felt polishing process is generally used for mirror polishing of such slots, which has high artificial working strength, long processing time, poor polishing effect and high rework rate.

[0004] Therefore, it is urgent to design and develop a new polishing method for the above-mentioned problems existing in the mirror polishing of the ceramic laser plate slot, so as to solve the problems existing in the manual polishing, such as 1. high artificial working strength and long processing time; 2. poor polishing effect of the slot bottom and high rework rate; 3. complicated manual addition of polishing liquid. SUMMARY

[0005] The purpose of the present application is to solve the problems existing in the mirror polishing of the existing ceramic laser plate slot, such as high working strength, long processing time, poor polishing effect, high rework rate, low efficiency and complex processing operation, and to provide a laser slot plate in-slot mirror polishing device and polishing method which are convenient and fast to process, have good polishing effect, are efficient and have high yield.

[0006] The technical scheme adopted by the present application to achieve the first inventive objective is: a laser groove plate in-groove mirror polishing device, comprising a mirror polishing cutter for realizing mirror polishing of the bottom mirror of a laser groove to be polished and a polishing liquid automatic adding device for automatically storing and adding polishing liquid to the mirror polishing cutter; the mirror polishing cutter comprises a wool felt grinding wheel, and the wool felt grinding wheel is provided with a mirror polishing surface; the polishing liquid automatic adding device is provided with a secondary pressurization and liquid pushing integrated mechanism. The laser groove plate in-groove mirror polishing device is used for the mirror polishing requirement of the laser groove on the current laser groove plate. The mirror polishing cutter is used to realize mirror polishing of the laser groove. The mirror polishing cutter mainly uses a newly designed wool felt grinding wheel with a mirror polishing surface to realize automatic polishing of the laser groove. Since the polishing needs to meet the mirror surface requirement, the polishing needs to be realized in cooperation with the polishing liquid during the polishing process. A small polishing liquid automatic adding device that can be moved and arranged at any suitable position according to the requirement is specially designed for the wool felt grinding wheel. The automatic adding device uses a secondary pressurization and liquid pushing integrated mechanism to automatically add the polishing liquid by using the gas pressure after secondary pressurization to push the polishing liquid. The gas pressure type pushing of the polishing liquid for adding can effectively control the adding amount of the polishing liquid and can also ensure the uniformity of the polishing liquid adding, thereby greatly improving the mirror polishing effect of the wool felt grinding wheel. The laser groove plate in-groove mirror polishing device can meet the mirror automatic polishing requirement of the laser groove on the current laser groove plate, has high polishing precision, is efficient and fast, and can effectively improve the mirror polishing yield.

[0007] Preferably, the wool felt grinding wheel comprises a central main body part and an edge polishing part, the thickness of the central main body part of the wool felt grinding wheel is greater than the thickness of the edge polishing part of the wool felt grinding wheel, and the mirror polishing surface is arranged in a circular arc shape along the periphery of the polishing part. The thickness of the central main body part of the wool felt grinding wheel is set to be greater than the thickness of the edge polishing part, which can ensure the automatic use strength of the wool felt grinding wheel, is also conducive to the mirror polishing effect of the mirror polishing surface on the laser groove, and is also conducive to reducing the manufacturing cost of the wool felt grinding wheel. The mirror polishing surface is arranged on the periphery of the wool felt grinding wheel in a circular arc shape. The circular arc shape is matched with the shape of the laser groove bottom part, can realize the requirement of synchronous completion of rough polishing and fine polishing through one-time installation, and the roughness of the mirror polishing surface can be equal to or less than the roughness of the polishing part, thereby meeting the laser groove bottom mirror roughness requirement and the laser groove wall polishing requirement.

[0008] Preferably, the wool felt grinding wheel has a gradually decreasing thickness from the center body to the edge polishing part, or the wool felt grinding wheel has a stepwise decreasing thickness from the center body to the edge polishing part. The thickness of the wool felt grinding wheel is greater at the center body than at the edge polishing part, which can be gradually decreasing or stepwise decreasing. Such a structure can ensure the service strength of the wool felt grinding wheel, and can also meet the requirements of the wool felt grinding wheel extending into the bottom of the laser groove to achieve one-time rough and fine polishing, saving time, being fast and efficient, and having high polishing surface degree.

[0009] Preferably, the wool felt grinding wheel has a gradually decreasing thickness from the center body to the edge polishing part, or the wool felt grinding wheel has a stepwise decreasing thickness from the center body to the edge polishing part. The thickness of the wool felt grinding wheel is greater at the center body than at the edge polishing part, which can be gradually decreasing or stepwise decreasing. Such a structure can ensure the service strength of the wool felt grinding wheel, and can also meet the requirements of the wool felt grinding wheel extending into the bottom of the laser groove to achieve one-time rough and fine polishing, saving time, being fast and efficient, and having high polishing surface degree.

[0010] Preferably, the mirror polishing cutter further comprises metal support members arranged on both sides of the wool felt grinding wheel to stably support the wool felt grinding wheel, and the metal support members are fixedly connected with the wool felt grinding wheel through fasteners. In order to further increase the strength of the mirror polishing cutter, metal support members with a diameter smaller than that of the polishing part are arranged on both sides of the wool felt grinding wheel to reinforce the wool felt grinding wheel from both sides, so as to facilitate the installation of the mirror polishing cutter on the machine tool workbench to achieve polishing.

[0011] Preferably, the metal support member is a metal support ring piece, and a protruding clasp is arranged on the outer ring side of the metal support ring piece and towards the side of the wool felt grinding wheel. The metal support ring piece and the clasp arranged thereon are used to facilitate the fixed connection of the metal support member with the wool felt grinding wheel, so that the metal support member and the wool felt grinding wheel can be multi-fixed.

[0012] As preferred, the polishing liquid automatic adding device comprises a device body and a polishing liquid storage device, the device body is internally provided with a gas pressure cavity, the device body is provided with a gas inlet and a connecting port communicating with the inside of the gas pressure cavity along the same axis, the polishing liquid storage device is arranged at the connecting port, and the secondary pressure boosting and liquid pushing integrated mechanism is movably arranged in the gas pressure cavity and the polishing liquid storage device. The polishing liquid automatic adding device mainly comprises a device body and a polishing liquid storage device arranged on the device body, the device body is internally provided with a gas pressure cavity, pressure gas can be introduced into the gas pressure cavity through the gas inlet, so that the inside of the gas pressure cavity is in a certain pressure state, the inside of the polishing liquid storage device is used for storing polishing liquid, one end of the secondary pressure boosting and liquid pushing integrated mechanism is arranged in the gas pressure cavity and the other end is arranged in the polishing liquid storage device, when the gas pressure in the gas pressure cavity is greater than the pressure in the polishing liquid storage device, the gas pressure drives the secondary pressure boosting and liquid pushing integrated mechanism to move towards the inside of the polishing liquid storage device, and then drives the polishing liquid in the polishing liquid storage device to move outward, so that the purpose of automatically adding the polishing liquid is achieved. The mechanism can stably push the polishing liquid, so that the effective spraying of the polishing liquid is ensured.

[0013] As preferred, the polishing liquid storage device is a tank body with a liquid pressure cavity, the opening end of the liquid pressure cavity of the tank body is arranged in the gas pressure cavity and communicates with the gas pressure cavity, the end opposite to the opening of the liquid pressure cavity is coaxially provided with a liquid outlet, the liquid outlet is connected with a liquid outlet pipe, and the outlet end of the liquid outlet pipe is provided with a liquid outlet nozzle; the secondary pressure boosting and liquid pushing integrated mechanism comprises a liquid pushing plug and a gas pressure plug which are integrally arranged, the liquid pushing plug is slidably arranged in the liquid pressure cavity, and the gas pressure plug is arranged in the gas pressure cavity. The above structure of the polishing liquid storage device facilitates the arrangement of the secondary pressure boosting and liquid pushing integrated mechanism, so that the purpose of adding the polishing liquid by the gas pressure is achieved, and the secondary pressure boosting and liquid pushing integrated mechanism comprises the liquid pushing plug for driving the polishing liquid to move towards the liquid outlet and the gas pressure plug for driving the liquid pushing plug to move under the driving of the gas pressure.

[0014] As preferred, the gas inlet is connected with a gas pressure pump connecting piece, the gas pressure pump connecting piece comprises a gas storage cavity connected with an external gas pressure pump and a gas outlet pipe connected with the gas pressure cavity. The gas inlet is connected with the gas pressure pump connecting piece, so as to realize the connection with the external gas pressure pump, the gas compressed by the gas pressure pump is stored in the gas storage cavity, when a certain amount of gas is stored, the gas is transported to the inside of the gas pressure cavity through the gas outlet pipe to realize secondary pressure boosting, and then the gas pressure plug is driven to move.

[0015] The technical scheme for realizing the second application purpose of the present application is a polishing method using a laser groove plate groove inner mirror polishing device, comprising the following steps:

[0016] Step 1: the wool felt grinding wheel is fixed on the workbench through the metal support and fastener, the polishing liquid automatic adding device is magnetically attracted to the appropriate position on the workbench, and the liquid outlet pipe is aligned with the wool felt grinding wheel;

[0017] Step 2: rough polishing of the laser groove: the laser groove plate to be polished is installed on the motion platform, the wool felt grinding wheel is adjusted to contact the laser groove on the laser groove plate, then the wool felt grinding wheel is lowered by 0.02mm, the polishing liquid automatic adding device is turned on to continuously add polishing liquid to the wool felt grinding wheel, and after reaching the lowering amount, the wool felt grinding wheel runs along the laser groove (12) empty, at the same time, the motion platform drives the laser groove plate to be polished to move according to the shape of the laser groove, so that rough polishing of all the laser grooves is realized;

[0018] Step 3: secondary rough polishing of the laser groove: the lowering amount of the wool felt grinding wheel is adjusted to 0.005mm, and after reaching the lowering amount, the wool felt grinding wheel runs along the laser groove at least 9 times, so that the groove bottom is rough polished by the polishing mirror surface, and the secondary rough polishing is completed;

[0019] Step 4: fine polishing of the laser groove: the lowering amount of the wool felt grinding wheel is adjusted to 0.005mm, and after reaching the lowering amount, the wool felt grinding wheel runs along the laser groove, so that the groove bottom is fine polished by the polishing mirror surface until the roughness reaches below Ra0.2 to achieve mirror surface effect, and the fine polishing is completed.

[0020] The polishing method using the laser groove plate groove mirror polishing device can realize one-time automatic mirror polishing of the laser grooves on the laser groove plate, is convenient and fast to operate, has high polishing precision, good polishing quality and high efficiency, and greatly improves the processing efficiency of the product.

[0021] The laser groove plate groove mirror polishing device can meet the requirements of automatic mirror polishing of the groove bottom of the laser groove on the existing laser groove plate, has high polishing precision, is efficient and fast, and can effectively improve the mirror polishing yield. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic view of the laser groove plate groove mirror polishing device of the present application;

[0023] Figure 2 is a structural schematic view of the mirror polishing cutter in the present application;

[0024] Figure 3 is a sectional view of the mirror polishing cutter in the present application;

[0025] Figure 4 is a structural schematic view of the polishing liquid automatic adding device;

[0026] Figure 5is a structural schematic view of the mirror polishing device in the laser groove plate groove of embodiment 2 of the present application;

[0027] Figure 6 is a structural schematic view of the laser groove plate to be polished of the present application;

[0028] In the figure: 1, laser groove plate to be polished, 11, groove plate body, 12, laser groove;

[0029] 2, mirror polishing cutter, 21, wool felt grinding wheel, 22, mirror polishing surface, 23, metal support, 24, fastener, 25, circular arc notch, 26, snap ring, 27, cutter shaft mounting hole, 28, main body, 29, polishing part;

[0030] 3, automatic polishing liquid adding device, 31, secondary pressure liquid pushing integrated mechanism, 310, liquid pushing plug, 311, air pressure plug, 32, device body, 33, polishing liquid storage device, 34, air pressure cavity, 35, air inlet, 36, connecting port, 37, liquid pressing cavity, 38, liquid outlet, 39, liquid pushing opening;

[0031] 4, workbench frame;

[0032] 5, motion platform, 51, workbench surface, 52, linear motion mechanism, 53, rotating mechanism;

[0033] 6, sliding block, 7, sliding rail, 8, driving device;

[0034] 9, liquid outlet pipe, 91, liquid outlet nozzle,

[0035] 10, air pressure pump connecting piece, 101, air storage cavity, 102, air outlet pipe

[0036] 13, magnet fixing block, 14, metal protective plate, 15, polishing liquid. DETAILED DESCRIPTION

[0037] The various aspects of the present application will be described in detail below with specific embodiments and in conjunction with the accompanying drawings.

[0038] Embodiment 1:

[0039] In Figure 1 the illustrated embodiment, as Figure 6 shown, the laser groove plate to be polished 1 includes a groove plate body 11 in the form of a cuboid structure, and a laser groove 12 in the form of a Z-shaped structure is formed on the groove plate body 11. The groove plate body 11 is 300 mm long, 50 mm wide, and 4.3 mm thick. The groove width of the Z-shaped laser groove 12 on the surface of the groove plate body 11 is 2.8 mm, the groove depth is 2.8 mm, and the groove bottom is in the form of a circular arc. The groove bottom of the laser groove needs to be mirror polished to achieve a roughness of Ra0.2 or less to meet the requirements of mirror surface effect.

[0040] In order to achieve the polishing requirements of the laser groove bottom on the laser groove plate, a laser groove plate in-groove mirror polishing device is adopted in the embodiment, which comprises a workbench 4, and a mirror polishing cutter 2 for realizing mirror polishing of the laser groove bottom to be polished and a polishing liquid automatic adding device 3 for realizing automatic pressure storage and adding of polishing liquid 15 to the mirror polishing cutter during polishing are arranged on the workbench.

[0041] The movement platform 5 can drive the laser groove plate 1 to move along the shape of the laser groove 12 under the control of the control program. The movement platform 5 is mainly arranged to facilitate the fixation of the laser groove plate, and the relative position of the laser groove 12 is moved through the movement platform, so that the laser groove arranged in a Z shape can be effectively polished by the polishing cutter at one time. Specifically, during use, the laser groove plate to be polished is fixed on the movement platform 5, one end of the laser groove 12 is opposite to the mirror polishing cutter 2, the mirror polishing cutter 2 is inserted into the groove bottom of the laser groove 12, the mirror polishing cutter 2 and the movement platform 5 are started, the movement platform 5 moves according to the designed polishing speed, and the groove bottom of the laser groove 12 is polished by the mirror polishing cutter 2 in turn. Of course, the polishing liquid automatic adding device 3 needs to be started during polishing to automatically add the polishing liquid 15 to the mirror polishing cutter 2.

[0042] The movement platform 5 comprises a workbench surface 51, a linear movement mechanism 52 arranged below the workbench surface 51, and a rotating mechanism 53, the linear movement mechanism 52 is arranged above the rotating mechanism 53, the rotating mechanism 53 is rotationally arranged on the workbench 4, and the rotating mechanism 53 is driven to rotate by a rotating driving device connected with a control system.

[0043] The mirror polishing cutter 2 is arranged on the workbench 4 in an up-and-down movement mode through the control system. Specifically, the mirror polishing cutter 2 is connected with a slide rail 7 arranged on the workbench in a self-locking sliding mode through a sliding block 6, so as to realize the position adjustment of the mirror polishing cutter 2 to adapt to the polishing machining requirements of the laser groove bottom on different laser groove plates. The slide rail 7 is arranged vertically along the workbench 4, so that the mirror polishing cutter is also arranged vertically above the laser groove plate to be polished.

[0044] The mirror polishing cutter 2 is connected with a driving device 8 arranged on the mounting bench 4, and the driving device is controlled by the control system to drive the mirror polishing cutter 2 to rotate.

[0045] As Figure 2 , Figure 3As shown, the mirror polishing cutter 2 comprises a wool felt grinding wheel 21, the wool felt grinding wheel 21 comprises a central main body part 28 and an edge polishing part 29, and a mirror polishing surface 22 is arranged on the outer circumference of the wool felt grinding wheel 21; the mirror polishing cutter 2 further comprises metal support members 23 arranged on both sides of the wool felt grinding wheel to stably support the wool felt grinding wheel, and the metal support members 23 are fixedly connected with the wool felt grinding wheel 21 through fasteners 24. The central part of the wool felt grinding wheel 21 is provided with a tool shaft mounting hole 27, and a tool shaft is mounted in the tool shaft mounting hole 27 and connected with a driving device.

[0046] In this embodiment, the thickness of the central main body part of the wool felt grinding wheel 21 is greater than the thickness of the edge polishing part of the wool felt grinding wheel, and the mirror polishing surface 22 is arranged along the circumference of the polishing part. In this embodiment, the wool felt grinding wheel 21 has a non-uniform thickness structure with a thin edge and a thick center, and specifically comprises a polishing part at the edge and a main body part inside, which can meet the requirement that the edge enters the bottom of the laser groove and fully contacts the bottom for polishing, and the thick center structure can ensure the use strength of the wool felt grinding wheel. A plurality of circular arc notches 25 are uniformly arranged on the edge of the wool felt grinding wheel 21, and the circular arc notches divide the mirror polishing surface 22 into a plurality of independent mirror polishing surfaces. In this embodiment, there are 10 circular arc notches 25, and the specific number is selected and arranged according to the overall diameter of the wool felt grinding wheel and the polishing speed. The circular arc notches 25 can reduce the splashing of the polishing liquid during polishing, so that the polishing liquid can effectively stay inside the circular arc notches 25, thereby ensuring the polishing effect and saving the use amount of the polishing liquid. In this embodiment, the thickness of the polishing part of the wool felt grinding wheel 21 is slightly smaller than the groove width of the laser groove, the depth of the polishing part is greater than the depth of the laser groove, for example, less than 0.2mm of the groove width of the laser groove, and the edge and the groove bottom of the laser groove are arranged in a circular arc structure. In this way, during use, the polishing part can realize one-time overall polishing of the groove bottom by penetrating into the groove bottom of the laser groove, and the thickness of the thick center main body part is at least twice the thickness of the polishing part. In order to meet the stability requirement during polishing, the thickness of the main body part gradually increases from the polishing part to the center. The non-uniform thickness structure can ensure good stability of the wool felt grinding wheel during polishing, effectively guarantee the polishing effect, improve the polishing quality, and make the mirror degree in the laser groove meet higher requirements.

[0047] The metal support 23 is a support sheet made of metal material, and a metal support sheet is arranged on each side of the wool felt grinding wheel 21, the diameter of the metal support sheet is smaller than the diameter of the maximum outer circle of the main body part and larger than the radius of the wool felt grinding wheel, and a convex clamping ring 26 is arranged on the outer ring edge of the metal support piece towards the wool felt grinding wheel side. The specific connection mode is that in the embodiment, the two metal support sheets are connected with the wool felt grinding wheel through six metal rivets, so as to increase the stability of the wool felt grinding wheel. The two metal support sheets are fastened and fixed with the wool felt grinding wheel 21 through the metal rivets, so as to ensure the stability of the whole cutter after being assembled on the workbench. The polishing cutter has the advantages of simple structure, convenience, practicality, simple operation, high efficiency, full polishing of the bottom of the laser groove plate, good polishing quality and good polishing effect.

[0048] In order to solve the problem of complicated manual addition of polishing liquid, the polishing liquid automatic adding device 3 is designed, the polishing liquid is added by automatic pressure storage, so that the polishing liquid is automatically added to the mirror polishing cutter in the mirror polishing cutter polishing process, and the full automatic design of the laser groove bottom polishing is realized.

[0049] As shown in Figure 4 The polishing liquid automatic adding device comprises a device body 32, the inside of the device body 32 is provided with a gas pressure cavity 34, a gas inlet 35 and a connecting port 36 which are communicated with the inside of the gas pressure cavity 34 are arranged on the device body 32 along the same axis, the gas inlet 35 is connected with a gas pressure pump connecting piece 10, the gas pressure pump connecting piece 10 comprises a gas storage cavity 101 connected with an external gas pressure pump and a gas outlet pipe 102 connected with the gas pressure cavity 34, and is used for transmitting the pressure gas to the gas pressure cavity after the pressure gas is stored and pressurized in the gas pressure pump connecting piece. A polishing liquid storage device 33 is arranged on the connecting port 36, the polishing liquid storage device 33 is a tank body with a liquid pressing cavity 37, one end of the liquid pressing cavity 37 towards the inside of the gas pressure cavity 34 is provided with a liquid pushing opening 39, the other end of the liquid pressing cavity 37 is provided with a liquid outlet 38, a liquid outlet pipe 9 is coaxially arranged on the liquid outlet 38, and the outlet end of the liquid outlet pipe 9 is provided with a liquid outlet nozzle 91.

[0050] The secondary pressurization and liquid pushing integrated mechanism 31 comprises a liquid pushing plug 310 and a gas pressure plug 311 which are integrally arranged, the gas pressure plug 311 is sealingly and slidingly arranged in the liquid pressing cavity 37, and the gas pressure plug 311 is arranged in the gas pressure cavity 34. The liquid pushing plug 310 is sealingly and slidingly arranged in the liquid pressing cavity 37 through the liquid pushing opening and is sealingly and slidingly matched with the cavity wall of the liquid pressing cavity 37 in the polishing liquid storage device; the gas pressure plug 311 is arranged in the gas pressure cavity 34, the diameter of the gas pressure plug 311 is greater than or equal to the diameter of the liquid pushing plug 310, and the gas pressure plug 311, the liquid pushing plug 310, the liquid pressing cavity 37 and the liquid outlet 38 are arranged along the same axis.

[0051] The air pressure pump connecting piece 10 realizes the first pressure increase of the gas input from the external air pump, and then the gas is subjected to the second pressure increase in the air pressure cavity 34. The gas subjected to the second pressure increase acts on the air pressure plug 311 to generate a continuous and stable pushing force on the air pressure plug 311, and the air pressure plug is pushed towards the one end of the liquid outlet pipe. At this time, the liquid pushing plug 310 slides in the liquid pressure cavity 37 to push the polishing liquid 15 in the liquid pressure cavity 37 towards the liquid outlet pipe, and the polishing liquid 15 is sprayed from the liquid outlet spout of the liquid outlet pipe to the wool felt grinding wheel to cool the mirror polished tool.

[0052] The magnet fixing block 13 is further arranged on the device body 32, and the polishing liquid automatic adding device can be fixed on the workbench as needed, so that the polishing liquid is continuously and stably provided to the polishing tool during polishing. The polishing liquid automatic adding device has the advantages of simple structure, convenience, practicality, and can be fixed arbitrarily according to the actual position to realize the addition of polishing liquid to the wool felt grinding wheel, which is convenient and efficient.

[0053] In this embodiment, the method for polishing the mirror surface of the bottom of the laser groove by the laser groove plate groove mirror polishing device comprises the following steps:

[0054] Step 1: The wool felt grinding wheel 21 is fixed on the workbench 4 through the metal support 23 and the fastener 23, and the polishing liquid automatic adding device 3 is magnetically attracted to the appropriate position on the workbench 4, and the liquid outlet pipe 9 is aligned with the wool felt grinding wheel 21. Specifically, the wool felt grinding wheel is fixed on the driving device of the workbench through the metal support ring piece and the metal rivet, a metal protective plate 14 is arranged on the outside of the wool felt grinding wheel to protect the wool felt grinding wheel and improve the safety of processing, the polishing liquid automatic adding device is magnetically attracted to the appropriate position outside the metal protective plate 14 through the magnet fixing block 13, and the liquid outlet pipe 9 is aligned with the wool felt grinding wheel.

[0055] Step 2: Coarse polishing of the laser groove: the laser groove plate 1 to be polished is installed on the movement platform 5, the wool felt grinding wheel 21 is adjusted to contact the laser groove 12 on the laser groove plate to be polished, then the wool felt grinding wheel is lowered by 0.02 mm, the automatic pressure storage and polishing liquid adding device 3 is started to continuously add polishing liquid to the wool felt grinding wheel 21, and after reaching the lowering amount, the wool felt grinding wheel runs along the laser groove 12, and the polishing mirror surface 22 polishes the groove bottom. At the same time, the movement platform 5 drives the laser groove plate to be polished to move in a Z-shaped manner according to the shape of the laser groove, so as to realize coarse polishing of all the laser grooves.

[0056] Step 3: Secondary coarse polishing of the laser groove: the lowering amount of the wool felt grinding wheel is adjusted to 0.005 mm, and after reaching the lowering amount, the wool felt grinding wheel runs along the laser groove for at least 9 times, and the polishing mirror surface 22 polishes the groove bottom to complete the secondary coarse polishing.

[0057] Step 4: Fine polishing of the laser groove: adjust the undercut of the wool felt grinding wheel to 0.005 mm, after reaching the undercut, the wool felt grinding wheel runs along the laser groove, and the bottom of the groove is fine polished by the polishing mirror 22 until the roughness reaches below Ra0.2 to achieve a mirror effect, and the fine polishing is completed.

[0058] Example 2:

[0059] In Figure 5 In the embodiment shown, the laser groove plate includes a groove plate body in a cuboid structure, and a Z-shaped laser groove is formed on the groove plate body. The groove plate body is 500 mm long, 50 mm wide, and 4.3 mm thick. The groove width of the Z-shaped laser groove on the surface of the groove plate body is 2.8 mm, the groove depth is 2.8 mm, and the groove bottom is in a circular arc shape. The bottom of the laser groove needs to be polished to a mirror surface, and the roughness needs to reach below Ra0.2 to meet the requirements of the mirror effect.

[0060] The laser groove plate in-v-groove mirror polishing device in this embodiment has basically the same technical scheme as that in Example 1, except that the mirror polishing cutter 2 includes a wool felt grinding wheel 21. In this embodiment, the thickness of the main body part of the wool felt grinding wheel 21 is 3 times the thickness of the polishing part, and the thickness of the main body part 28 is uniform. The polishing part 29 is in a stepped structure and is arranged from the center to the outside. The unequal thickness of the main body part and the polishing part ensures the stability of the wool felt grinding wheel during polishing. The polishing part is in a stepped structure, which can meet the strength design requirements and the polishing requirements of the bottom of the laser groove. The polishing part can be inserted into the laser groove for polishing. In this embodiment, the polishing liquid automatic adding device 3 is directly attracted to the workbench 4 by the magnetic attraction fixing block.

[0061] The laser groove plate in-v-groove mirror polishing device in the above embodiments can work at high speed, complete polishing faster, has high stability of mechanical polishing, can increase the mirror effect of the groove bottom surface and reduce the surface roughness, has a long service life of the mirror polishing cutter, and can separately disassemble and replace the wool felt grinding wheel, thereby reducing the processing cost. The polishing liquid automatic adding device is used for automatic adding of polishing liquid by air pressure. The polishing liquid automatic adding device can be connected with the air pressure pump on the workbench and fixed to the workbench by the magnetic fixing block. During work, the polishing liquid is automatically and continuously added by the air pressure. The laser groove plate is driven by the movement platform to adjust the relative position of the laser groove and the mirror polishing cutter according to the control program, so as to realize one-time automatic polishing. The degree of automation is high, and high-efficiency and high-quality mirror polishing of the bottom of the laser groove can be realized.

[0062] It should be noted that the above-mentioned embodiments are only illustrative of the principles of the present application, and various changes and modifications can be made to the present application without departing from the scope of the present application, and all such changes and modifications shall fall within the scope of the claimed application. Based on the embodiments described in the present application, all other embodiments obtained by those skilled in the art on the basis of the technical solutions of the present application without creative labor shall fall within the scope of protection of the present application.

Claims

1. A laser-driven groove plate inner mirror polishing device, characterized in that: It includes a mirror polishing tool (2) for polishing the bottom of the laser tank to be polished and an automatic polishing liquid adding device (3) for automatically adding polishing liquid to the mirror polishing tool (2) under automatic pressure storage; the mirror polishing tool (2) includes a wool felt grinding wheel (21) with a mirror polishing surface (22) provided on the wool felt grinding wheel; the automatic polishing liquid adding device (3) is provided with a secondary pressurization and liquid pushing integrated mechanism (31). The automatic polishing slurry adding device includes a device body with an internal air pressure chamber. An air inlet and a connection port, connected to the air pressure chamber, are formed along the same axis on the device body. An air pressure pump connector is connected to the air inlet. The air pressure pump connector includes an air storage chamber connected to an external air pressure pump and an air outlet pipe connected to the air pressure chamber. A polishing slurry storage device, which is a tank with a pressurized liquid chamber, is provided at the connection port. The secondary pressurization and liquid-pushing integrated mechanism (31) is movably disposed inside the pneumatic chamber (34) and the polishing liquid storage device (33); the secondary pressurization and liquid-pushing integrated mechanism includes an integrally disposed liquid-pushing plug and a pneumatic plug, the liquid-pushing plug is sealed and slidably disposed inside the liquid-pressing chamber, and the pneumatic plug is disposed inside the pneumatic chamber. The opening end of the pressure chamber of the tank is located inside the pressure chamber (34) and communicates with the pressure chamber (34). The end opposite to the opening of the pressure chamber is provided with a liquid outlet (38) on the same axis. A liquid outlet pipe (9) is connected to the liquid outlet (38). A liquid outlet nozzle (91) is provided at the outlet end of the liquid outlet pipe (9). It also includes a motion platform mounted on the workbench, which, under the control of the control program, can move the laser groove plate to be polished along the shape of the laser groove.

2. The laser slot plate in-slot mirror polishing device according to claim 1, characterized in that: The wool felt grinding wheel (21) includes a central body part (28) and an edge polishing part (29). The thickness of the central body part (28) of the wool felt grinding wheel (21) is greater than the thickness of the edge polishing part (29). The mirror polishing surface (22) is arranged in an arc shape along the periphery of the polishing part.

3. The laser slot plate in-slot mirror polishing device according to claim 2, characterized in that: The wool felt grinding wheel (21) has a progressively decreasing thickness from the central main body to the edge polishing part, or the wool felt grinding wheel (21) has a stepped decreasing thickness from the central main body to the edge polishing part.

4. The laser slot plate in-slot mirror polishing apparatus according to any one of claims 1 to 3, characterized in that: The wool felt grinding wheel (21) has a cutter shaft mounting hole (27) at its center, and the wool felt grinding wheel (21) has several arc-shaped notches (25) circumferentially opened on the edge polishing part.

5. The laser slot plate in-slot mirror polishing device according to claim 1, characterized in that: The mirror polishing tool (2) further includes metal support members (23) set on both sides of the wool felt grinding wheel (21) to stably support the wool felt grinding wheel. The metal support members (23) are fixedly connected to the wool felt grinding wheel (21) by fasteners (24).

6. The laser slot plate in-slot mirror polishing device according to claim 5, characterized in that: The metal support (23) is a metal support ring, and the outer ring edge of the metal support (23) is integrally provided with a protruding retaining ring (26) facing the wool felt grinding wheel.

7. A method for polishing using the laser slot plate in-slot mirror polishing apparatus according to any one of claims 1 to 6, characterized in that... Includes the following steps: Step 1: Fix the wool felt grinding wheel (21) on the workbench (4) with the metal support (23) and fastener (24), and magnetically attach the polishing liquid automatic adding device (3) to the appropriate position on the workbench (4), and align the liquid outlet pipe (9) with the wool felt grinding wheel (21). Step 2: Rough polishing of the laser groove: Install the laser groove plate (1) to be polished on the motion platform (5), adjust the wool felt abrasive wheel (21) so that it contacts the laser groove (12) on the laser groove plate, then cut the wool felt abrasive wheel (21) down 0.02mm, turn on the automatic polishing liquid adding device (3), and continuously add polishing liquid (15) to the wool felt abrasive wheel (21). After reaching the cutting depth, the wool felt abrasive wheel (21) runs along the laser groove (12) without moving. At the same time, the motion platform (5) drives the laser groove plate (1) to be polished to move according to the shape of the laser groove (12) to achieve rough polishing of all laser grooves (12). Step 3: Secondary rough polishing of the laser groove: Adjust the cutting depth of the wool felt grinding wheel (21) to 0.005mm. After reaching the cutting depth, the wool felt grinding wheel (21) runs along the laser groove (12) at least 9 times. The bottom of the groove is rough polished through the mirror polishing surface (22) to complete the secondary rough polishing. Step 4: Fine polishing of the laser groove: Adjust the cutting depth of the wool felt grinding wheel (21) to 0.005mm. After reaching the cutting depth, the wool felt grinding wheel (21) runs along the laser groove (12) and fine polishes the bottom of the groove through the mirror polishing surface (22) until the roughness reaches Ra0.2 or less and a mirror effect is achieved, thus completing the fine polishing.

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