CN109176241A - The charging method of graphite jig blank and the manufacturing method of graphite jig - Google Patents
The charging method of graphite jig blank and the manufacturing method of graphite jig Download PDFInfo
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- CN109176241A CN109176241A CN201810834279.1A CN201810834279A CN109176241A CN 109176241 A CN109176241 A CN 109176241A CN 201810834279 A CN201810834279 A CN 201810834279A CN 109176241 A CN109176241 A CN 109176241A
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- graphite mold
- graphite
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- sensor
- mold blank
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 278
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 278
- 239000010439 graphite Substances 0.000 title claims abstract description 278
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000003801 milling Methods 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 35
- 238000005498 polishing Methods 0.000 claims description 56
- 238000005520 cutting process Methods 0.000 claims description 50
- 238000012545 processing Methods 0.000 claims description 36
- 239000011265 semifinished product Substances 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 21
- 239000011521 glass Substances 0.000 description 10
- 238000003754 machining Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000013003 hot bending Methods 0.000 description 3
- 238000007517 polishing process Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/20—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention is suitable for the manufacturing technology field of graphite jig, disclose the charging method of graphite jig blank and the manufacturing method of graphite jig, wherein, the charging method of graphite jig blank includes the following steps: sensor installation steps, installs sensor on the fixture that clamping has graphite jig blank；Sensor information typing step carries out identiflication number and will be in the database of corresponding number typing control system to the sensor on fixture；Step is placed, has the fixture of graphite jig blank and sensor to be placed in the hopper in material library clamping；Data correlation step, drive hopper rotation, the sensor on fixture is identified by the detector being installed in material library, and control system has the fixture of graphite jig blank and sensor to establish linked database for the hopper in material library according to the feedback information of detector with clamping.The present invention is conducive to realize the automation Milling Process of graphite jig blank, to be conducive to reduce cost of labor and improve production efficiency.
Description
Technical Field
The invention relates to the technical field of manufacturing of graphite molds, in particular to a feeding method of a graphite mold blank and a manufacturing method of a graphite mold.
Background
One production process for curved glass sheets is by hot bending with a graphite mold. In the prior art, a graphite mold for processing a curved glass plate is directly placed into a numerical control milling machine for milling after a graphite mold blank is clamped on a clamp in a processing process, so that the clamp needs to be manually placed into the numerical control milling machine, after the processing is completed, the clamp needs to be manually taken out of the numerical control milling machine, the labor cost is high, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide a feeding method of a graphite die blank, which aims to solve the technical problems of low production efficiency and high labor cost of manual feeding in the milling process of the conventional graphite die.
In order to achieve the purpose, the invention provides the following scheme: the feeding method of the graphite mold blank comprises the following steps:
a sensor mounting step, namely mounting a sensor on a fixture clamped with a graphite mold blank;
a sensor information input step, namely identifying the sensor on the clamp and inputting the corresponding number into a database of a control system;
a placing step, namely placing the clamp clamped with the graphite mold blank and the sensor in a material groove of the material warehouse;
and a data association step, namely driving the trough to rotate, identifying the sensor on the clamp through a detector arranged in the stock bin, and establishing an association database for the trough in the stock bin and the clamp clamped with the graphite mold blank and the sensor by a control system according to feedback information of the detector.
Optionally, the sensor is a wireless rf sensor and the detector is a wireless rf reader.
Optionally, a plurality of turntables distributed at intervals in the vertical direction and a driving mechanism for controlling the turntables to operate are arranged in the material warehouse, and a plurality of material troughs distributed at intervals in the circumferential direction are arranged on each turntable;
in the data association step, the drive control mode of the rotation of the trough is as follows: the control system sends a rotation signal to the driving mechanism, and the driving mechanism drives the turntable to rotate, so that the turntable can drive the trough to rotate.
Optionally, the number of the detectors is the same as that of the turntables, a plurality of the detectors are vertically arranged in a row and distributed on the inner side wall of the material warehouse, and each of the detectors and each of the turntables are located at the same height position;
in the data association step, each of the detectors identifies the sensor on one of the rotating discs.
A second object of the present invention is to provide a method for manufacturing a graphite mold, which includes the steps of:
cutting, namely cutting the graphite raw material to obtain a graphite die cutting piece;
grinding, namely grinding each outer surface of the graphite die cutting piece to obtain a graphite die blank;
a clamping leveling step, namely, mounting the graphite mold blank on a clamp, and leveling the graphite mold blank on the clamp;
a milling step, namely, feeding the graphite mold blank by adopting the feeding method of the graphite mold blank, conveying the graphite mold blank in the material warehouse to a numerical control milling machine by adopting a manipulator, and milling the graphite mold blank clamped on the clamp by adopting the numerical control milling machine to obtain a graphite mold semi-finished product;
and polishing, namely polishing the graphite mold semi-finished product to obtain the graphite mold.
Optionally, the graphite die cutting piece is of a rectangular block structure, and the length of the graphite die cutting piece is defined as a1Defining the width of the graphite die cutting piece as b1Defining the length of the graphite mold as a2Defining the width of the graphite mold as b2Then a is1、b1、a2、b2Satisfies the relationship: a is1-a2＝0.08mm～0.12mm，b1-b2The cutting step is carried out according to the following implementation mode, wherein the cutting step is 0.08 mm-0.12 mm: according to the length a of the graphite die cutting piece1And the width b of the graphite die cutting member1And cutting the graphite raw material to obtain the graphite die cutting piece.
Optionally, the graphite mold blank is a rectangular block structure, and the length of the graphite mold blank is defined as a3Defining the width of the graphite mold blank as b3Then a is3、b3、a2、b2Satisfies the relationship: a is3-a2＝±0.01mm，b3-b2± 0.01mm, an embodiment of the grinding step is: according to the length a of the graphite die blank3And the width b of the graphite mold blank3And respectively grinding six outer surfaces of the graphite die cutting piece to obtain the graphite die blank.
Optionally, the milling step comprises the sub-steps of:
a feeding sub-step, namely feeding the graphite mold blank by adopting the feeding method of the graphite mold blank;
a feeding and transferring substep, wherein the fixture with the graphite mold blank clamped in the material warehouse is transferred to a numerical control milling machine provided with ultrasonic equipment through a mechanical arm;
a processing substep, performing ultrasonic milling processing on the graphite mold blank by the numerical control milling machine to obtain a graphite mold semi-finished product;
and a blanking transferring substep, wherein the clamp clamped with the graphite mold semi-finished product in the numerical control milling machine is transferred to the material warehouse through the mechanical arm.
Optionally, in the sub-processing step, the graphite mold blank is subjected to ultrasonic milling in an embodiment that: the cutter is driven by ultrasonic equipment to generate vibration, and the vibrating cutter is driven by a power device to rotate and move so as to perform ultrasonic milling on the graphite mold blank.
Optionally, the polishing step comprises the sub-steps of:
a manual polishing substep, wherein the graphite mold semi-finished product is manually polished by manually adopting a handheld sponge piece, and the handheld sponge piece is a part which is made of sponge and is convenient for being held by hands;
and a step of polishing the graphite mold semi-finished product after the step of polishing manually by a polishing machine to obtain the graphite mold.
The invention provides a feeding method of a graphite mold blank and a manufacturing method of a graphite mold, which store the graphite mold blank through a material warehouse, after the clamp provided with the graphite mold blank and the sensor is placed in the trough of the stock house, the trough is driven to rotate, the sensor on the clamp is identified through a detector arranged in the stock house, so that the control system can establish a correlation database for the trough in the stock house and the fixture which is clamped with the graphite mold blank and the sensor, thereby being convenient for the control system to control the manipulator to automatically transfer the fixture with the graphite mold blank and the sensor in the material warehouse to the numerical control milling machine for milling, being beneficial to realizing the automatic milling of the graphite mold blank, on one hand, the labor cost and the labor intensity in the production process of the graphite mold are reduced, and on the other hand, the production efficiency of the graphite mold is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a feeding method of a graphite mold blank provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of the fixture for clamping a graphite mold blank and a sensor, which is provided by the embodiment of the invention, installed in a warehouse;
FIG. 3 is an enlarged partial schematic view at A in FIG. 2;
FIG. 4 is a schematic flow chart of a method for manufacturing a graphite mold according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart of the clamping leveling step provided by the embodiment of the invention;
FIG. 6 is a schematic flow chart of a milling step provided by an embodiment of the present invention;
FIG. 7 is a schematic flow chart of the polishing step provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 3, a method for feeding a graphite mold blank according to an embodiment of the present invention includes the following steps:
a sensor mounting step S411 of mounting a sensor 3 on a jig 2 on which a graphite mold blank (not shown) is clamped;
a sensor information entry step S412 of identifying the sensor 3 on the clamp 2 and entering the corresponding number into a database of a control system (not shown);
a placing step S413, wherein the fixture 2 clamped with the graphite mold blank and the sensor 3 is placed in the trough 111 of the material warehouse 1;
and a data association step S414, wherein the trough 111 is driven to rotate, the sensor 3 on the clamp 2 is identified through the detector 4 arranged in the material warehouse 1, and the control system establishes an association database for the trough 111 in the material warehouse 1 and the clamp 2 clamped with the graphite mold blank and the sensor 3 according to the feedback information of the detector 4.
The feeding method of the graphite mold blank provided by the embodiment of the invention stores the graphite mold blank through the material warehouse 1, after the fixture 2 with the graphite mold blank and the sensor 3 is placed in the trough 111 of the stock bin 1, the trough 111 is driven to rotate, the sensor 3 on the clamp 2 is identified through the detector 4 arranged in the material storehouse 1, so that the control system can establish a correlation database for the trough 111 in the stock 1 and the fixture 2 which clamps the graphite mold blank and the sensor 3, further, the control system is convenient to control the mechanical arm to automatically transfer the clamp 2 which is provided with the graphite die blank and the sensor 3 in the material warehouse 1 into the numerical control milling machine for milling, the automatic milling of the graphite die blank is realized, on one hand, the labor cost and the labor intensity in the production process of the graphite mold are reduced, and on the other hand, the production efficiency of the graphite mold is improved. Here, the trough 111 in the stock bin 1 and the fixture 2 which is clamped with the graphite mold blank and the sensor 3 establish a relevant database, so that the control system is facilitated to control the manipulator to accurately take the graphite mold blank from the stock bin 1, and meanwhile, the working personnel can know the processing progress of each graphite mold blank in the stock bin 1 in real time conveniently.
Preferably, the sensor 3 is a wireless radio frequency sensor and the detector 4 is a wireless radio frequency reader. The wireless radio frequency sensor can store large-capacity data, can be repeatedly used, has the advantages of high reliability and simplicity in operation compared with the adoption of a bar code serial number, is small in size and convenient to install, can realize quick scanning, and greatly improves the convenience of installation and the efficiency of operation. The wireless radio frequency sensor can be fixed on the clamp 2 in a magnetic force adsorption mode.
Preferably, a plurality of vertically spaced turntables 11 and a driving mechanism (not shown) for controlling the turntables 11 to operate are arranged in the magazine 1, and each turntable 11 is provided with a plurality of circumferentially spaced troughs 111;
in the data association step S414, the drive control method for the rotation of the trough 111 is: the control system sends a rotation signal to the driving mechanism, and the driving mechanism drives the rotating disc 11 to rotate, so that the trough 111 can be driven by the rotating disc 11 to rotate. In the preferred embodiment, the trough 111 is arranged on the turntable 11, so that the structure is simple and easy to realize; the turntables 11 are distributed at intervals along the vertical direction, so that the occupied ground space of the material warehouse 1 is reduced; the trough 111 is provided with a plurality of, and a plurality of graphite mould blanks can be deposited in the storage 1 to do benefit to and satisfy the continuous automatic milling process's of graphite mould demand.
Specifically, the driving mechanism may be a combination of a motor and a speed reducer or other mechanisms capable of driving the turntable 11 to rotate.
Preferably, the number of the detectors 4 is the same as that of the turntables 11, the detectors 4 are vertically arranged in a row and distributed on the inner side wall of the material warehouse 1, and each detector 4 and each turntable 11 are located at the same height position;
in the data association step S414, each of the detectors 4 identifies a corresponding sensor 3 on the turntable 11. In the preferred embodiment, a row of detectors 4 are adopted to respectively identify the sensors 3 on the rotary discs 11 with different heights, so that identification can be realized without driving the detectors 4 or lifting movement of the rotary discs 11, and only the rotary discs 11 are controlled to rotate, and the device is simple in structure and easy to control.
Preferably, in this embodiment, the number of the material troughs 111 arranged in the material warehouse 1 is 60, and each rotating disc 11 is provided with 12 material troughs 111, so that the capacity is large, and the material warehouse 1 does not occupy too large space. Of course, the number of troughs 111 is not limited to this in a particular application.
Further, as shown in fig. 2 to 7, an embodiment of the present invention further provides a method for manufacturing a graphite mold, which includes the following steps:
a cutting step S100, cutting the graphite raw material to obtain a graphite die cutting piece;
a grinding step S200, wherein the grinding processing is carried out on each outer surface of the graphite die cutting piece to obtain a graphite die blank;
a clamping leveling step S300, namely, mounting the graphite mold blank on the clamp 2, and leveling the graphite mold blank on the clamp 2;
a milling step S400, namely, feeding the graphite mold blank by adopting the feeding method of the graphite mold blank, conveying the graphite mold blank in the material warehouse 1 into a numerical control milling machine by adopting a manipulator, and milling the graphite mold blank clamped on the clamp 2 by adopting the numerical control milling machine to obtain a graphite mold semi-finished product;
and a polishing step S500, polishing the graphite mold semi-finished product to obtain the graphite mold.
In the embodiment of the invention, the cutting step S100 is mainly used for cutting and processing the graphite raw material to prepare a graphite mold blank with an external contour shape similar to that of the graphite mold and an external contour size slightly larger than that of the graphite mold; the grinding step S200 is mainly used for grinding the outer surfaces of the graphite mold blank prepared in the cutting step S100 to prepare the graphite mold blank; the clamping leveling step S300 is mainly used for mounting the graphite mold blank manufactured in the grinding step S200 on the jig 2, and calibrating and leveling the graphite mold blank on the jig 2 to ensure the precision of the subsequent processing of the graphite mold blank; the milling step S400 is mainly used for machining holes, grooves and other features, and specifically, the holes, grooves and other features are machined on the graphite mold blank leveled in the clamping leveling step S300 through ultrasonic milling to obtain a graphite mold semi-finished product; the polishing step S500 is mainly used to polish the graphite mold semi-finished product to obtain a graphite mold with high surface precision.
According to the embodiment of the invention, the graphite raw material is firstly cut to obtain the graphite mold cutting piece, and then the graphite mold cutting piece is sequentially subjected to grinding, milling and polishing, so that the processing technology of the graphite mold is effectively optimized, the processing process operation of the graphite mold is simplified, and the processing efficiency of the graphite mold is favorably improved; the graphite die blank is subjected to surface grinding processing and clamping leveling before milling processing, so that the processing efficiency and the processing precision of the graphite die can be further improved.
Preferably, the graphite die cutting member has a rectangular block structure, and the length of the graphite die cutting member is defined as a1Defining the width of the graphite die cutting member as b1Defining the length of the graphite mold as a2Defining the width of the graphite mold as b2Then a is1、b1、a2、b2Satisfies the relationship: a is1-a2＝0.08mm～0.12mm，b1-b2The embodiment of the cutting step S100 is that, when the diameter is 0.08mm to 0.12 mm: according to the length a of the graphite die cutting piece1And the width b of the graphite die cutting member1Cutting graphite raw materials to obtain a graphite dieAnd (4) cutting the part. Here, the length a of the graphite mold cut piece is set to1Width b1Are respectively set to be a than the length of the graphite mold2Width b2The size of the graphite mold blank is 0.08-0.12 mm, so that enough machining allowance can be reserved for subsequent machining of the graphite mold blank to ensure machining precision, excessive repeated machining times of subsequent machining are avoided, and machining precision and machining efficiency are ensured.
Preferably, a1、b1、a2、b2Satisfies the relationship: a is1-a2＝0.1mm，b1-b2The thickness is 0.1mm, so that the processing precision and the processing efficiency of the graphite mold can be well balanced.
Preferably, the material cutting step S100 is implemented as follows: and cutting the graphite raw material by using a sawing machine to obtain a graphite die cutting piece. Here, the cutting step S100 is implemented by using a sawing machine, which is beneficial to ensuring the cutting precision and the cutting efficiency.
Preferably, the graphite mold blank is a rectangular block structure, and the length of the graphite mold blank is defined as a3Defining the width of the graphite mold blank as b3Then a is3、b3、a2、b2Satisfies the relationship: a is3-a2＝±0.01mm，b3-b2The embodiment of the grinding step S200 is as follows: according to the length a of the graphite die blank3And width b of graphite mold blank3And respectively grinding six outer surfaces of the graphite die cutting piece to obtain a graphite die blank. Here, the length a of the graphite mold blank is set3Width b3Are respectively set to be a than the length of the graphite mold2Width b2The size is 0.01mm, so that the machining precision and the machining efficiency of the graphite mold can be considered simultaneously.
Preferably, in the clamping leveling step S300, the graphite mold blank on the fixture 2 is leveled into a level of the graphite mold blank on the fixture 2.
Preferably, the clamping and leveling step S300 includes the following sub-steps:
a detection substep S310, mounting the graphite mold blank on a fixture 2, placing the fixture 2 with the graphite mold blank in a detection device, and measuring height values of the graphite mold blank at four corners;
and a processing substep S320 of taking the fixture 2 with the graphite mold blank out of the detection equipment and leveling the graphite mold blank mounted on the fixture 2 according to the detection result of the detection substep S310.
The detection substep S310 is mainly used for detecting height values of the graphite mold blank clamped at four corners of the clamp 2; the processing substep S320 is mainly used for performing correction and leveling processing on the graphite mold blank on the jig 2 according to the data detected in the detection substep S310. Here, the detection substep S310 performs automatic detection by using a detection device, and has high detection precision and high detection efficiency.
Preferably, the leveling processing manner in the processing substep S320 is:
if the error values of the height values of the four corners of the graphite mold blank detected by the detection equipment are less than or equal to 0.01mm, finishing leveling; and if the error values of the height values of the four corners of the graphite mold blank detected by the detection device are greater than 0.01mm, according to the detection value of the detection device, padding tin foil paper under the part with the small height value of the graphite mold blank, and repeating the detection substep S310 and the processing substep S320 until the error values of the height values of the four corners of the graphite mold blank detected by the detection device are less than or equal to 0.01 mm. The graphite mold blank on the clamp 2 is corrected and leveled in a mode of padding tin foil paper, and the operation is simple and convenient; after the tin foil paper is padded, the detection substep S310 and the processing substep S320 are repeated until the error values of the height values of the four corners of the graphite mold blank detected by the detection equipment are less than or equal to 0.01mm, so that the leveling precision is ensured.
Preferably, the milling step S400 comprises the following sub-steps:
a feeding sub-step S410, wherein the graphite mold blank is fed by adopting the feeding method of the graphite mold blank;
a feeding and transferring substep S420, transferring the fixture 2 with the graphite mold blank clamped in the material warehouse 1 into a numerical control milling machine provided with ultrasonic equipment through a manipulator;
a processing substep S430, performing ultrasonic milling processing on the graphite mold blank by a numerical control milling machine to obtain a graphite mold semi-finished product;
the blanking transfer substep S440 transfers the jig 2, which has the graphite mold half-finished product clamped therein, to the magazine 1 by the robot.
In this preferred embodiment, adopt the material loading method of above-mentioned graphite mold blank earlier to carry out the material loading to graphite mold blank, then through the manipulator with the built-in anchor clamps 2 that accompany graphite mold blank in the feed bin 1 transmit to the numerically controlled fraise machine in carry out ultrasonic milling, after the numerically controlled fraise machine carries out ultrasonic milling to graphite mold blank and accomplishes and obtain graphite mold semi-manufactured goods, rethread manipulator transmits the built-in anchor clamps 2 that accompany graphite mold semi-manufactured goods in the numerically controlled fraise machine to the feed bin 1 in, thereby graphite mold blank's full-automatic ultrasonic milling has been realized, do benefit to like this and reduce human cost and artifical intensity of labour, do benefit to the big batch milling of graphite mold blank. In the milling process, the ultrasonic technology is adopted to assist milling of the graphite mold blank, so that the knife lines on the surface of the processed graphite mold semi-finished product can be effectively refined, and the surface smoothness of the finally prepared graphite mold is improved.
In addition, the graphite mold semi-finished product is subjected to ultrasonic milling by the numerical control milling machine, so that before processing, only corresponding processing programs need to be programmed and stored in a control system of the numerical control milling machine, the corresponding programs are selected according to needs during processing, the numerical control milling machine can be controlled to automatically process the required graphite mold, the reliability of the milling precision is high, meanwhile, the large-batch ultrasonic milling of the graphite mold semi-finished product is facilitated, and the size uniformity of the graphite mold processed by the large-batch ultrasonic milling is high.
Preferably, in the substep S430, the graphite mold blank is subjected to ultrasonic milling in the following manner: the cutter is driven by ultrasonic equipment to generate vibration, and the vibrating cutter is driven by a power device to rotate and move so as to perform ultrasonic milling on the graphite mold blank. The power device drives the cutter to rotate and move, so that the graphite mold blank can be milled by utilizing the cutter rotating at a high speed. The ultrasonic equipment is used for assisting the cutter to mill the graphite mold blank, so that the cutter has micro vibration in the milling process by utilizing the action of ultrasonic on the cutter, and the machined knife pattern is thinner and has better finish.
Preferably, in the processing substep S430, the power device drives the tool to rotate and move in the following manner: the power device drives the installation main shaft with the cutter to rotate and move, so that the installation main shaft can drive the cutter to rotate and move. The power device comprises a rotary driving mechanism for driving the installation main shaft to rotate and a moving driving mechanism for driving the rotary driving mechanism to move, and the moving driving mechanism comprises at least one of a horizontal moving mechanism and a lifting moving mechanism. The rotation driving mechanism is preferably a motor or a combination of the motor and a speed reducer; the horizontal movement mechanism and the lifting movement mechanism are preferably cylinders.
Preferably, the ultrasonic equipment comprises an ultrasonic lantern ring sleeved on the mounting main shaft and an ultrasonic generator connected with the ultrasonic lantern ring, and the ultrasonic equipment drives the cutter to generate vibration in the following mode: the ultrasonic generator provides ultrasonic vibration frequency for the ultrasonic lantern ring, so that the main shaft and the cutter can be driven and installed by the ultrasonic lantern ring to generate vibration. The ultrasonic generator is preferably arranged outside the numerical control milling machine, and during specific processing, the ultrasonic generator generates ultrasonic waves with certain frequency and transmits the ultrasonic waves to the mounting main shaft through the ultrasonic lantern ring, so that the mounting main shaft can generate micro vibration, the cutter can generate micro vibration along with the mounting main shaft, and finally the purpose of assisting the cutter in milling the graphite mold blank through an ultrasonic technology is achieved.
Preferably, the polishing step S500 includes the following sub-steps:
a manual polishing substep S510, performing manual polishing treatment on the graphite mold semi-finished product by manually using a handheld sponge piece, wherein the handheld sponge piece is a part which is made of sponge and is convenient for being held by hands;
and a step S520 of mechanical polishing, namely, performing mechanical polishing treatment on the graphite mold semi-finished product after the step S500 of manual polishing through a polishing machine to obtain the graphite mold.
In the polishing step S500 of the graphite mold provided in the embodiment of the present invention, the graphite mold semi-finished product is polished by manually using the handheld sponge member, and then the graphite mold semi-finished product is polished again by the polishing machine, and the graphite mold semi-finished product is detected by the three-dimensional detection device to find that: the graphite mould manufactured by the polishing process has the advantages that the surface finish of the graphite mould is greatly improved, and the knife lines on the surface of the semi-finished product of the graphite mould are effectively and thoroughly removed, so that the improvement of the surface finish of the curved glass plate formed by hot bending of the graphite mould is facilitated, and the improvement of the attractiveness and the surface touch comfort of the product is facilitated.
Preferably, the first implementation manner of the manual polishing substep S510 is:
manually polishing the surface of the graphite mold semi-finished product for the first time by manually adopting a first handheld sponge piece,
manually polishing the surface of the graphite mold semi-finished product for the second time by adopting a second handheld sponge piece with the surface roughness smaller than that of the first handheld sponge piece; or,
the second embodiment of the manual polishing substep S510 is:
and manually polishing the surface of the graphite mold semi-finished product by manually adopting a second handheld sponge piece.
The first hand-held sponge is used for rough polishing, and the second hand-held sponge is used for fine polishing. In the first implementation manner of the manual polishing substep S510, the polished surface is high in cleanliness after being subjected to rough polishing and fine polishing, and the method is mainly suitable for polishing graphite mold semi-finished products with high surface roughness and thick knife lines; the second implementation manner of the manual polishing substep S510 is to directly perform a fine polishing at one time, has high polishing efficiency, and is mainly suitable for polishing graphite mold semi-finished products with small surface roughness and fine tool lines. In a specific application, the manual polishing substep S510 can be implemented according to a specific graphite mold semi-finished product by considering whether the first embodiment or the second embodiment is selected: when the milled graphite mold semi-finished product has large surface roughness and thick knife lines, the manual polishing substep S510 is implemented by adopting the first implementation mode, so that the surface smoothness of the prepared graphite mold can be fully ensured; when the milled graphite mold semi-finished product has small surface roughness and fine knife lines, the manual polishing substep S510 is implemented by adopting the second implementation mode, which is beneficial to considering both the surface smoothness and the polishing efficiency of the graphite mold.
Preferably, the handheld sponge piece (including the first handheld sponge piece and the second handheld sponge piece) is a sponge pad, the sponge pad is in the form of a washer, the outline shape of the outer edge of the sponge pad can be rectangular, circular or oval and the like, and the handheld sponge piece is simple in structure, easy to manufacture and mold and convenient to hold by a hand. Of course, the hand-held sponge member may be formed in other shapes for specific applications, such as a wheel-shaped sponge wheel or a spherical sponge ball.
Preferably, in the step S520 of mechanical polishing, the polishing process is 1 to 2 microns.
Preferably, in the sub-step S520 of mechanical polishing, the polishing machine performs mechanical polishing treatment on the graphite mold semi-finished product by driving the foam wheel or the sponge wheel to rotate and move, that is: in the sub-step S520 of machine polishing, the polishing machine drives the foam wheel or the sponge wheel to rotate and move horizontally at the same time, so that polishing can be performed by using the foam wheel or the sponge wheel rotating at a high speed.
Preferably, during the mechanical polishing treatment, the graphite mold semi-finished product is circularly cleaned by using a cleaning solution, so that the polishing precision is prevented from being influenced by scraps generated in the polishing process.
Preferably, the graphite mold is used for hot bending of a glass cover plate of the mobile terminal, and the mobile terminal is a mobile phone, a tablet personal computer and the like. According to the graphite mold manufactured by the manufacturing method, the production efficiency and the surface finish degree of the graphite mold are greatly improved, the labor cost is also greatly reduced, the mold opening efficiency of the mobile terminal glass cover plate is improved, the mold opening cost of the mobile terminal glass cover plate is reduced, the surface finish degree of the mobile terminal glass cover plate manufactured by the graphite mold is improved, and therefore the comfort of holding and touching the mobile terminal glass cover plate by a user is favorably improved. Of course, in specific applications, the method for manufacturing a graphite mold according to the embodiment can also be used for manufacturing a graphite mold for molding a glass plate of other equipment, such as a glass plate of an automobile.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The feeding method of the graphite mold blank is characterized by comprising the following steps:
a sensor mounting step, namely mounting a sensor on a fixture clamped with a graphite mold blank;
a sensor information input step, namely identifying the sensor on the clamp and inputting the corresponding number into a database of a control system;
a placing step, namely placing the clamp clamped with the graphite mold blank and the sensor in a material groove of the material warehouse;
and a data association step, namely driving the trough to rotate, identifying the sensor on the clamp through a detector arranged in the stock bin, and establishing an association database for the trough in the stock bin and the clamp clamped with the graphite mold blank and the sensor by a control system according to feedback information of the detector.
2. The method of feeding a graphite mold blank as recited in claim 1, wherein the sensor is a radio frequency sensor and the detector is a radio frequency reader.
3. The method for feeding the graphite mold blank as claimed in claim 1 or 2, wherein a plurality of vertically spaced turntables and a driving mechanism for controlling the turntables to operate are arranged in the magazine, and each turntable is provided with a plurality of circumferentially spaced troughs;
in the data association step, the drive control mode of the rotation of the trough is as follows: the control system sends a rotation signal to the driving mechanism, and the driving mechanism drives the turntable to rotate, so that the turntable can drive the trough to rotate.
4. The method for feeding the graphite mold blank according to claim 3, wherein the number of the detectors is the same as that of the turntables, a plurality of the detectors are vertically arranged in a row and distributed on the inner side wall of the material warehouse, and each detector is respectively positioned at the same height position as each turntable;
in the data association step, each of the detectors identifies the sensor on one of the rotating discs.
5. The manufacturing method of the graphite mold is characterized by comprising the following steps:
cutting, namely cutting the graphite raw material to obtain a graphite die cutting piece;
grinding, namely grinding each outer surface of the graphite die cutting piece to obtain a graphite die blank;
a clamping leveling step, namely, mounting the graphite mold blank on a clamp, and leveling the graphite mold blank on the clamp;
a milling step, namely, feeding the graphite mold blank by adopting the feeding method of the graphite mold blank as defined in any one of claims 1 to 4, conveying the graphite mold blank in the stock bin into a numerical control milling machine by adopting a manipulator, and milling the graphite mold blank clamped on the clamp by adopting the numerical control milling machine to obtain a graphite mold semi-finished product;
and polishing, namely polishing the graphite mold semi-finished product to obtain the graphite mold.
6. The method of manufacturing a graphite mold as set forth in claim 5, wherein the graphite mold cutter has a rectangular block-like structure, and the length of the graphite mold cutter is defined as a1Defining the width of the graphite die cutting piece as b1Defining the length of the graphite mold as a2Defining the width of the graphite mold as b2Then a is1、b1、a2、b2Satisfies the relationship: a is1-a2＝0.08mm～0.12mm，b1-b2The cutting step is carried out according to the following implementation mode, wherein the cutting step is 0.08 mm-0.12 mm: according to the length a of the graphite die cutting piece1And the width b of the graphite die cutting member1And cutting the graphite raw material to obtain the graphite die cutting piece.
7. The method of manufacturing a graphite mold as claimed in claim 6, wherein the graphite mold blank has a rectangular block-shaped structure, and the length of the graphite mold blank is defined as a3Defining the width of the graphite mold blank as b3Then a is3、b3、a2、b2Satisfies the relationship: a is3-a2＝±0.01mm，b3-b2± 0.01mm, an embodiment of the grinding step is: according to the length a of the graphite die blank3And the width b of the graphite mold blank3And respectively grinding six outer surfaces of the graphite die cutting piece to obtain the graphite die blank.
8. The method of manufacturing a graphite mold as claimed in claim 5, wherein the milling step includes the substeps of:
a charging sub-step of charging the graphite mold blank by the method of charging the graphite mold blank according to any one of claims 1 to 4;
a feeding and transferring substep, wherein the fixture with the graphite mold blank clamped in the material warehouse is transferred to a numerical control milling machine provided with ultrasonic equipment through a mechanical arm;
a processing substep, performing ultrasonic milling processing on the graphite mold blank by the numerical control milling machine to obtain a graphite mold semi-finished product;
and a blanking transferring substep, wherein the clamp clamped with the graphite mold semi-finished product in the numerical control milling machine is transferred to the material warehouse through the mechanical arm.
9. The method for manufacturing a graphite mold as set forth in claim 8, wherein in the substep of processing, the graphite mold blank is subjected to ultrasonic milling in a manner of: the cutter is driven by ultrasonic equipment to generate vibration, and the vibrating cutter is driven by a power device to rotate and move so as to perform ultrasonic milling on the graphite mold blank.
10. The method for manufacturing a graphite mold as claimed in any one of claims 5 to 9, wherein the polishing step comprises the substeps of:
a manual polishing substep, wherein the graphite mold semi-finished product is manually polished by manually adopting a handheld sponge piece, and the handheld sponge piece is a part which is made of sponge and is convenient for being held by hands;
and a step of polishing the graphite mold semi-finished product after the step of polishing manually by a polishing machine to obtain the graphite mold.
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