Full-automatic mold repairing and polishing machine and polishing method thereof

Abstract

The full-automatic mold repairing and polishing machine comprises a box body structure, a mold clamping unit, an automatic take-up and pay-off mechanism, a high-precision displacement mechanism, a tension control mechanism and a full-automatic liquid injection system, the box body structure comprises an upper box body and a lower box body, and the size of the lower box body is larger than that of the upper box body; a liquid receiving groove is formed in the top of the lower box body; the mold clamping unit comprises a transverse plate fixedly connected to the side wall of the upper box body, the upper end of the transverse plate is rotationally connected with a rotating table, the upper end of the rotating table is fixedly connected with an arc-shaped clamping block, a movable wedge-shaped clamping block is arranged on one side of the arc-shaped clamping block, and a mold is placed between the arc-shaped clamping block and the wedge-shaped clamping block. And the position of the wedge-shaped clamping block can be adjusted through a vertical screw rod, so that the mold is in a fixed state, and the upper end of the transverse plate is further rotationally connected with a driving wheel. The full-automatic polishing machine has the advantages of being good in die repairing and polishing quality, good in consistency, convenient to operate, high in efficiency, high in yield, full-automatic, compact in structure and the like.

Description

Technical Field

[0001] The invention relates to the technical field of mold repair and polishing, and in particular to a full-automatic mold repair and polishing machine and a polishing method thereof. Background Art

[0002] The existing die repairing machine uses a die repair wire to fix the die, rotate the die, and reciprocate the die up and down. In one die repair cycle, the die repair wire needs to be replaced, which increases the processing time. Since the die needs to rotate and reciprocate up and down, the rotation and reciprocating speeds are slow, the die repair efficiency is low, and the hole quality is poor;

[0003] In addition, the existing mold repair wire relies on manual installation and fixation, with low positioning accuracy, and the tension of the mold repair wire is determined by experience, and the tension cannot be dynamically adjusted, resulting in low yield, low dimensional accuracy, and poor consistency;

[0004] Moreover, the existing mold repair process requires regular manual replenishment of grinding fluid, resulting in a waste of human resources;

[0005] To this end, we propose a fully automatic mold repair and polishing machine and a polishing method thereof to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0007] In view of the problems existing in the above-mentioned existing mold repairing and polishing machines and polishing methods, the present invention is proposed.

[0008] Therefore, the purpose of the present invention is to provide a fully automatic mold repair and polishing machine and a polishing method thereof, which is driven by an automatic wire-receiving and wire-releasing mechanism to pass through the mold to be repaired at high speed, and the mold is driven by a high-precision rotating mechanism to rotate at high speed, and the mold repair wire origin program is automatically calibrated to ensure that the mold repair wire is accurately positioned and consistent, and the fully automatic liquid injection system is used to regularly and quantitatively inject grinding liquid into the mold, so that the mold obtains high-quality hole shape and dimensional accuracy. The current scheme only relies on manual operation for mold placement, which improves mold repair efficiency and yield rate, and saves human resources.

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a fully automatic mold repairing and polishing machine, comprising:

[0010] The box structure comprises an upper box and a lower box, wherein the size of the lower box is larger than that of the upper box, and a liquid receiving tank is arranged on the top of the lower box;

[0011] A mold clamping unit, comprising a transverse plate fixedly connected to the side wall of the upper box body, the upper end of the transverse plate being rotatably connected to a rotating table, the upper end of the rotating table being fixedly connected to an arc-shaped clamping block, one side of the arc-shaped clamping block being provided with a movable wedge-shaped clamping block, a mold being placed between the arc-shaped clamping block and the wedge-shaped clamping block, and the wedge-shaped clamping block being able to adjust the position by a vertical screw rod so that the mold is in a fixed state, the upper end of the transverse plate is also rotatably connected to a driving wheel, the lower side of the transverse plate is provided with a first servo motor connected to the driving wheel, the driving wheel (206) and the rotating table (202) are synchronous pulleys or circular pulleys or V-type pulleys, and the driving wheel and the rotating table are connected by a belt drive;

[0012] An automatic wire-reeling and wire-winding mechanism, comprising two groups of linear modules connected to the side walls of an upper box body, a movable block being slidably connected to the linear modules, and a second servo motor connected to the movable block being arranged on the side walls of the linear modules, a third servo motor being fixedly connected to the upper end of the movable block, and a wire-reeling wheel being connected to the output end of the third servo motor, the two groups of wire-reeling wheels being capable of wire-reeling and wire-winding, and the same die-dressing wire being wound around the two groups of wire-reeling wheels, and a tension control mechanism connected to the die-dressing wire being arranged on the side walls of the upper box body;

[0013] A high-precision displacement mechanism, comprising two groups of linear modules respectively arranged on the upper and lower sides of the horizontal plate, and the linear modules are connected to the side wall of the upper box body, a slider is slidably connected to the linear module, and a fourth servo motor connected to the slider is arranged on the side wall of the linear module, and a first guide wheel is arranged on the side wall of the slider, and the lateral movement of the slider can correct the position of the die repair wire;

[0014] A fully automatic liquid injection system includes a support plate arranged on the side wall of the upper box body, the upper end of the support plate is connected to a first rotary cylinder, the upper end of the first rotary cylinder is fixedly connected to an L-shaped bracket, the side wall of the L-shaped bracket is connected to a second rotary cylinder, and the output shaft of the second rotary cylinder is fixedly connected to a pneumatic liquid injection device, the pneumatic liquid injection device is correspondingly arranged on the upper side of the mold and is used for timed and quantitative injection of grinding liquid, and the grinding liquid collected in the liquid receiving tank flows back into the grinding box inside the lower box body.

[0015] As a preferred solution of the fully automatic mold repairing and polishing machine described in the present invention, wherein: a second guide wheel is rotatably connected to the side wall of the upper box body, and the second guide wheel is correspondingly arranged on one side of the tension control mechanism, the tension control mechanism includes a mounting plate fixedly connected to the side wall of the upper box body, a fifth servo motor is fixedly connected to the side wall of the mounting plate, an output end of the fifth servo motor is connected to a horizontal connecting rod, an end of the connecting rod away from the fifth servo motor is rotatably connected to a third guide wheel, and the mold repairing wire passes through the take-up wheel, the second guide wheel, the third guide wheel, the first guide wheel and the mold in sequence.

[0016] As a preferred solution of the fully automatic mold repairing and polishing machine described in the present invention, the mold clamping method can also be pneumatic clamping or threaded rotation clamping.

[0017] As a preferred solution of the fully automatic die repairing and polishing machine described in the present invention, a meter-counting mechanism is also arranged on the side wall of the upper box body between the third guide wheel and the first guide wheel, and the meter-counting mechanism includes a meter-counting wheel rotatably connected to the side wall of the upper box body, a fourth guide wheel is fixedly connected to the side wall of the meter-counting wheel, and an encoder for calculating the length of the die repairing wire is arranged inside the meter-counting wheel.

[0018] As a preferred solution of the fully automatic mold repair and polishing machine described in the present invention, wherein: the mold is provided with a fine hole to be polished, the mold repair wire is located in the center of the fine hole before the mold is processed, and the mold repair wire does not contact the inner wall of the mold fine hole, the mold and the mold repair wire are both made of metal, and the distance between the mold and the mold repair wire can be calculated by controlling the fourth servo motor.

[0019] A polishing method for a fully automatic mold repairing and polishing machine comprises the following steps:

[0020] Step 1: Place the mold to be processed between the arc-shaped clamping block and the wedge-shaped clamping block through an external manipulator, and adjust the screw to keep the mold in a constant state;

[0021] Step 2: Pass the die repair wire through the take-up wheel, the second guide wheel, the third guide wheel, the fourth guide wheel, the first guide wheel and the mold in sequence to form a vertically symmetrical state, and then adjust the fourth servo motor so that the die repair wire contacts the inner wall of the fine hole respectively, which are recorded as x1 and x2 respectively, and calculated by external control Adjust the trimming wire 306 to the center of the fine hole;

[0022] Step 3: Start the third servo motor on the side wall of the take-up wheel, so that the die repair wire runs through the die to be repaired at high speed. At the same time, the die is driven by the first servo motor to rotate at high speed. The die repair wire is automatically calibrated through external control to ensure accurate positioning of the die repair wire, and the fully automatic liquid injection system injects grinding liquid into the mold in a timely and quantitative manner;

[0023] Step 4: The tension control mechanism can adjust the tension of the die repair wire and ensure that the die repair wire is in a constant tension state, and can trigger an external alarm device to remind when the die repair wire breaks.

[0024] Beneficial effects of the present invention: The present invention is driven by an automatic wire-reeling and wire-receiving mechanism to pass through the mold to be repaired at high speed, and the mold is driven by a high-precision rotating mechanism to rotate at high speed. The automatic calibration of the mold repair wire origin program ensures that the mold repair wire is accurately positioned and consistent. The fully automatic liquid injection system regularly and quantitatively injects grinding liquid into the mold, so that the mold obtains high-quality hole shape and dimensional accuracy. The current solution only relies on manual operation for mold placement, improves mold repair efficiency and yield rate, and saves human resources; and has the characteristics of good mold repair and polishing quality, good consistency, convenient operation, high efficiency, high yield rate, full automation, compact structure, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0026] Figure 1 It is a schematic diagram of the overall structure of the fully automatic mold repairing and polishing machine and the polishing method thereof of the present invention.

[0027] Figure 2 The present invention is a schematic diagram of the structure of the mold clamping unit of the fully automatic mold repairing and polishing machine and the polishing method thereof.

[0028] Figure 3 The present invention is a schematic diagram of the automatic wire-receiving and wire-releasing mechanism of the fully automatic mold repairing and polishing machine and the polishing method thereof.

[0029] Figure 4 The present invention is a schematic diagram of the tension control mechanism structure of the fully automatic mold repairing and polishing machine and the polishing method thereof.

[0030] Figure 5 It is a schematic diagram of the high-precision displacement mechanism structure of the fully automatic mold repair and polishing machine and the polishing method thereof of the present invention.

[0031] Figure 6 The present invention is a schematic diagram of the structure of a fully automatic liquid injection system of the fully automatic mold repairing and polishing machine and the polishing method thereof.

[0032] Figure 7 The present invention is a schematic diagram of the structure of the meter-counting mechanism of the fully automatic mold repairing and polishing machine and the polishing method thereof.

[0033] Figure 8 The figure is a schematic diagram of the routing of the die repairing wire of the fully automatic die repairing and polishing machine and the polishing method thereof of the present invention.

[0034] Fig. 9 The present invention discloses a wiring diagram of the die repairing wire of the fully automatic die repairing and polishing machine and the polishing method thereof. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0039] Reference Figure 1-Figure 9 , provides a fully automatic mold repair and polishing machine, including:

[0040] Box structure 100, mold clamping unit 200, automatic wire taking-up and paying-off mechanism 300, high-precision displacement mechanism 400 and full-automatic liquid injection system 500;

[0041] The box structure 100 includes an upper box 101 and a lower box 102. The size of the lower box 102 is larger than that of the upper box 101. A liquid receiving tank 103 is provided on the top of the lower box 102.

[0042] Among them, the mold clamping unit 200 includes a horizontal plate 201 fixedly connected to the side wall of the upper box body 101, the upper end of the horizontal plate 201 is rotatably connected to a rotating table 202, the upper end of the rotating table 202 is fixedly connected to an arc-shaped clamping block 203, a movable wedge-shaped clamping block 204 is provided on one side of the arc-shaped clamping block 203, a mold 205 is placed between the arc-shaped clamping block 203 and the wedge-shaped clamping block 204, and the wedge-shaped clamping block 204 can be adjusted in position by a vertical screw so that the mold 205 is in a fixed state, and a fine hole to be polished is provided on the mold 205, the mold repairing wire 306 is in the central position of the fine hole before processing the mold 205, and the mold repairing wire 306 does not contact the inner wall of the fine hole of the mold 205, the mold 205 and the mold repairing wire 306 are both made of metal, and the distance between the mold 205 and the mold repairing wire 306 can be calculated by the control of the fourth servo motor 403.

[0043] Furthermore, the upper end of the horizontal plate 201 is also rotatably connected to a driving wheel 206, and a first servo motor 207 connected to the driving wheel 206 is provided on the lower side of the horizontal plate 201. The driving wheel 206 and the outer wall of the rotating table 202 are both provided with teeth, and the driving wheel 206 and the rotating table 202 are connected to each other through a belt 208. Specifically, the mold 205 can also be clamped by pneumatic clamping or threaded rotation clamping.

[0044] Among them, the automatic wire taking-up and releasing mechanism 300 includes two groups of linear modules 301 connected to the side wall of the upper box body 101, a movable block 302 is slidably connected to the linear module 301, and a second servo motor 303 connected to the movable block 302 is arranged on the side wall of the linear module 301, a third servo motor 304 is fixedly connected to the upper end of the movable block 302, and a wire taking-up wheel 305 is connected to the output end of the third servo motor 304, the two groups of wire taking-up wheels 305 can realize wire taking-up and wire releasing, and the same die repairing wire 306 is wound around the two groups of wire taking-up wheels, and a tension control mechanism connected to the die repairing wire 306 is arranged on the side wall of the upper box body 101; specifically, a second guide wheel 307 is rotatably connected to the side wall of the upper box body 101, and the second guide wheel 307 is correspondingly arranged on one side of the tension control mechanism, and the tension control mechanism includes a mounting plate 308 fixedly connected to the side wall of the upper box body 101, A fifth servo motor 309 is fixedly connected to the side wall of the mounting plate 308, and a horizontal connecting rod 310 is connected to the output end of the fifth servo motor 309. The end of the connecting rod 310 away from the fifth servo motor 309 is rotatably connected to the third guide wheel 311. The die repair wire 306 passes through the take-up wheel 305, the second guide wheel 307, the third guide wheel 311, the first guide wheel 404 and the mold 205 in sequence. Specifically, a meter-counting mechanism is also provided on the side wall of the upper box body 101 between the third guide wheel 311 and the first guide wheel 404. The meter-counting mechanism includes a meter-counting wheel 601 rotatably connected to the side wall of the upper box body 101, and a fourth guide wheel 602 is fixedly connected to the side wall of the meter-counting wheel 601. An encoder for calculating the length of the die repair wire 306 is provided in the meter-counting wheel 601. The meter-counting mechanism can calculate the use length of the die repair wire 306 in real time, and can provide data support for subsequent processing.

[0045] The high-precision displacement mechanism 400 includes two groups of linear module rails 401 respectively arranged on the upper and lower sides of the horizontal plate 201, and the linear module 401 is connected to the side wall of the upper box 101, a slider 402 is slidably connected to the linear module 401, and a fourth servo motor 403 connected to the slider 402 is arranged on the side wall of the linear module 401, and a first guide wheel 404 is arranged on the side wall of the slider 402, and the lateral movement of the slider 402 can correct the position of the die repair wire 306;

[0046] Among them, the fully automatic liquid injection system 500 includes a support plate 501 arranged on the side wall of the upper box body 101, the upper end of the support plate 501 is connected to the first rotating cylinder 502, the upper end of the first rotating cylinder 502 is fixedly connected to the L-shaped bracket 503, the side wall of the L-shaped bracket 503 is connected to the second rotating cylinder 504, and the output shaft of the second rotating cylinder 504 is fixedly connected to a pneumatic liquid injection device 505, the pneumatic liquid injection device 505 is correspondingly arranged on the upper side of the mold 205 and is used for timed and quantitative injection of grinding liquid, and the grinding liquid collected in the liquid receiving tank 103 flows back to the grinding box on the inner side of the lower box body 102.

[0047] A polishing method for a fully automatic mold repairing and polishing machine comprises the following steps:

[0048] Step 1: Place the mold 205 to be processed between the arc-shaped clamping block 203 and the wedge-shaped clamping block 204 by an external manipulator, and adjust the screw so that the mold 205 is in a constant state;

[0049] Step 2: The mold repair wire 306 is passed through the take-up wheel 305, the second guide wheel 307, the third guide wheel 311, the fourth guide wheel 602, the first guide wheel 404 and the mold 205 in sequence to form a vertically symmetrical state, and then the fourth servo motor 403 is adjusted to make the mold repair wire 306 contact the inner wall of the fine hole respectively, which are respectively recorded as x1 and x2, and obtained by external control calculation Adjust the trimming wire 306 to the center of the fine hole;

[0050] Step 3: Start the third servo motor 304 on the side wall of the take-up wheel 305, so that the mold repairing wire 306 runs at high speed through the mold to be repaired 205, and at the same time, the mold 205 is driven by the first servo motor 207 to rotate at high speed, and the mold repairing wire 306 is automatically calibrated through external control to ensure that the mold repairing wire 306 is accurately positioned, and the full-automatic liquid injection system 500 injects grinding liquid into the mold 205 in a timely and quantitative manner;

[0051] Step 4: The tension control mechanism can adjust the tension of the trimming wire 306 and ensure that the trimming wire 306 is in a stable state, and can trigger an external alarm device to remind when the trimming wire 306 breaks.

[0052] like Figure 8 As shown: “︱” is realized by precise positioning of two sets of first guide wheels 404. These five forms of mold repair and polishing methods ensure that the mold is accurately polished.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully automatic mold repairing and polishing machine, characterized in that: include: A box structure (100) comprises an upper box (101) and a lower box (102), wherein the size of the lower box (102) is larger than that of the upper box (101), and a liquid receiving tank (103) is provided on the top of the lower box (102); The mold clamping unit (200) comprises a horizontal plate (201) fixedly connected to the side wall of the upper box body (101), the upper end of the horizontal plate (201) is rotatably connected to a rotating table (202), the upper end of the rotating table (202) is fixedly connected to an arc-shaped clamping block (203), one side of the arc-shaped clamping block (203) is provided with a movable wedge-shaped clamping block (204), a mold (205) is placed between the arc-shaped clamping block (203) and the wedge-shaped clamping block (204), and the wedge-shaped clamping block (204) can be adjusted in position by means of a vertical screw rod so that the mold (205) is in a fixed state, the upper end of the horizontal plate (201) is also rotatably connected to a driving wheel (206), the lower side of the horizontal plate (201) is provided with a first servo motor (207) connected to the driving wheel (206), the driving wheel (206) and the rotating table (202) are synchronous pulleys or circular pulleys or V-type pulleys, and the driving wheel (206) and the rotating table (202) are connected by a belt (208); An automatic wire taking-up and paying-out mechanism (300) comprises two groups of linear modules (301) connected to the side wall of an upper box body (101), a movable block (302) being slidably connected to the linear module (301), and a second servo motor (303) connected to the movable block (302) being arranged on the side wall of the linear module (301), the servo motor (303) driving the linear module (301) to move linearly to realize a wire arrangement function, a third servo motor (304) being fixedly connected to the upper end of the movable block (302), and a wire taking-up wheel (305) being connected to the output end of the third servo motor (304), the two groups of wire taking-up wheels (305) being capable of taking up and paying out wire, and the same die trimming wire (306) being wound around the two groups of wire taking-up wheels, and a tension control mechanism connected to the die trimming wire (306) being arranged on the side wall of the upper box body (101); A high-precision displacement mechanism (400), comprising two groups of linear modules (401) respectively arranged on the upper and lower sides of a horizontal plate (201), and the linear modules (401) are connected to the side wall of an upper box body (101), a slider (402) is slidably connected to the linear module (401), and a fourth servo motor (403) connected to the slider (402) is arranged on the side wall of the linear module (401), and a first guide wheel (404) is arranged on the side wall of the slider (402), and the lateral movement of the slider (402) can correct the position of the die repair wire (306); A fully automatic liquid injection system (500) comprises a support plate (501) arranged on the side wall of an upper box body (101), the upper end of the support plate (501) is connected to a first rotary cylinder (502), the upper end of the first rotary cylinder (502) is fixedly connected to an L-shaped bracket (503), the side wall of the L-shaped bracket (503) is connected to a second rotary cylinder (504), the output shaft of the second rotary cylinder (504) is fixedly connected to a pneumatic liquid injection device (505), the pneumatic liquid injection device (505) is correspondingly arranged on the upper side of a mold (205) and is used for injecting grinding liquid in a timely and quantitative manner, and the grinding liquid collected by the liquid receiving tank (103) flows back into the grinding box inside the lower box body (102).

2. The fully automatic mold repairing and polishing machine according to claim 1 is characterized in that: A second guide wheel (307) is rotatably connected to the side wall of the upper box body (101), and the second guide wheel (307) is correspondingly arranged on one side of the tension control mechanism. The tension control mechanism includes a mounting plate (308) fixedly connected to the side wall of the upper box body (101), and a fifth servo motor (309) is fixedly connected to the side wall of the mounting plate (308). The output end of the fifth servo motor (309) is connected to a horizontal connecting rod (310), and the end of the connecting rod (310) away from the fifth servo motor (309) is rotatably connected to the third guide wheel (311). The mold repairing wire (306) passes through the take-up wheel (305), the second guide wheel (307), the third guide wheel (311), the first guide wheel (404) and the mold (205) in sequence.

3. The fully automatic mold repairing and polishing machine according to claim 1 is characterized in that: The mold (205) can also be clamped by pneumatic clamping or threaded rotation clamping.

4. The fully automatic mold repairing and polishing machine according to claim 2 is characterized in that: A meter-counting mechanism is also provided on the side wall of the upper box body (101) between the third guide wheel (311) and the first guide wheel (404), the meter-counting mechanism comprising a meter-counting wheel (601) rotatably connected to the side wall of the upper box body (101), a fourth guide wheel (602) being fixedly connected to the side wall of the meter-counting wheel (601), and an encoder for calculating the length of the die-cutting wire (306) being provided inside the meter-counting wheel (601).

5. The fully automatic mold repairing and polishing machine according to claim 1 is characterized in that: The mold (205) is provided with a fine hole to be polished; the mold trimming wire (306) is located at the center of the fine hole before processing the mold (205); the mold trimming wire (306) does not contact the inner wall of the fine hole of the mold (205); the mold (205) and the mold trimming wire (306) are both made of metal; and the distance between the mold (205) and the mold trimming wire (306) can be calculated through the control of the fourth servo motor (403).

6. A polishing method for a fully automatic mold repairing and polishing machine, characterized in that: The following steps are involved: Step 1: placing the mold (205) to be processed between the arc-shaped clamping block (203) and the wedge-shaped clamping block (204) by an external manipulator, and adjusting the screw so that the mold (205) is in a constant state; Step 2: The mold repair wire (306) is passed through the take-up wheel (305), the second guide wheel (307), the third guide wheel (311), the fourth guide wheel (602), the first guide wheel (404) and the mold (205) in sequence to form a vertically symmetrical state, and then the fourth servo motor (403) is adjusted so that the mold repair wire (306) contacts the inner wall of the pore respectively, which are respectively recorded as x1 and x2, and obtained by external control calculation Adjust the trimming wire (306) to the center of the fine hole; Step 3: Start the third servo motor (304) on the side wall of the take-up wheel (305), so that the mold repairing wire (306) runs at high speed through the mold to be repaired (205), and at the same time, the mold (205) is driven by the first servo motor (207) to rotate at high speed, and the mold repairing wire (306) is automatically calibrated through external control to ensure that the mold repairing wire (306) is accurately positioned, and the full-automatic liquid injection system (500) injects grinding liquid into the mold (205) in a timely and quantitative manner; Step 4: The tension control mechanism can adjust the tension of the die-trimming wire (306) and ensure that the die-trimming wire (306) is in a constant tension state, and can trigger an external alarm device to remind when the die-trimming wire (306) breaks.

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