Intelligent numerical control tool setting sleeve device and intelligent numerical control tool setting method

Abstract

The application discloses a kind of intelligent numerical control tool setting tool sleeve device and a kind of intelligent numerical control tool setting method, the intelligent numerical control tool setting tool sleeve device includes film driving device, tool sleeve main body and be located in the tool setting component, connecting component and tooling component of the tool sleeve main body, the film driving device includes lifting drive part, the tool sleeve main body is connected in the movable end of the lifting drive part, the tool sleeve main body includes drive end, the tool setting component includes control driving part, the control driving part is fixed in the drive end, the tooling component includes tool cap and tool, the control driving part can drive the tool linear lifting.The intelligent numerical control tool setting method is automatically height adjusted by the intelligent numerical control tool setting tool sleeve device as described above.Adopt the application, the cutting depth of tool can be automatically adjusted, improve cutting effect, and wide application range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scribing film equipment, and in particular to an intelligent numerical control tool setting device and an intelligent numerical control tool setting method. BACKGROUND

[0002] After the existing sheet metal product is formed, in order to protect the appearance characteristics such as color, texture and the like of the surface of the sheet metal, a protective film is usually attached to the appearance surface of the sheet metal, and when the product is assembled, the protective film on the surface of the sheet metal is usually torn off to facilitate subsequent production and assembly. A scribing machine is usually used to cut the protective film on the surface of the sheet metal, and the scribing machine is usually provided with a scribing driving device and a scribing knife. The scribing driving device can drive the scribing knife to move in the horizontal direction, and the scribing knife can cut the protective film.

[0003] In order to prevent the scribing knife from cutting too deeply and scratching the sheet metal or cutting too shallowly, and also in order to be able to adapt to sheet metals of different thicknesses and protective films of different thicknesses, the height of the scribing knife usually needs to be adjusted before and after cutting. Most of the existing scribing machines use a micrometer mechanism to adjust the cutting depth of the scribing knife. When the micrometer mechanism is used, the knob of the micrometer is rotated to control the lifting of the tool. This adjustment structure and adjustment method are relatively simple, but the adjustment accuracy is poor, the adjustment efficiency is low, and the adjustment can only be performed before scribing, and cannot be performed autonomously during scribing. When some sheet metals have poor flatness, the scribing knife may still scratch the sheet metal or cut too shallowly, and the overall adjustment effect is not good. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an intelligent numerical control tool setting device that can automatically adjust the cutting depth of the tool and improve the cutting effect.

[0005] The technical problem to be solved by the present application is also to provide an intelligent numerical control tool setting method that can automatically adjust the cutting depth of the tool, has high adjustment efficiency and high adjustment accuracy, and has a wide range of applications.

[0006] In order to solve the above technical problems, the present application provides an intelligent numerical control tool setting device, which comprises a scribing driving device, a tool setting main body, and a control component, a connecting component and a scribing knife component arranged in the tool setting main body. The scribing driving device comprises a lifting driving member, the tool setting main body is connected to the movable end of the lifting driving member, the tool setting main body comprises a driving end, the control component comprises a control driving member, the control driving member is fixed to the driving end, the connecting component comprises at least one magnetic attraction member, the movable end of the control driving member is magnetically connected to one end of the magnetic attraction member, and the control driving member can drive the magnetic attraction member to move linearly.

[0007] The cutter assembly comprises a cutter cap and a cutter, the cutter cap is sleeved outside the cutter end, the bottom side of the cutter cap is provided with a pressing surface, one end of the cutter is connected with the magnetic attraction element, and the other end can protrude from the pressing surface.

[0008] As an improvement of the above scheme, the connecting assembly comprises a first magnetic attraction element, the control assembly further comprises a telescopic rod, the telescopic rod is in transmission connection with the control driving element, the control driving element can drive the telescopic rod to vertically ascend and descend, the first magnetic attraction element is arranged between the telescopic rod and the cutter, the first magnetic attraction element is in magnetic attraction connection with the telescopic rod, the control driving element can drive the cutter to ascend and descend through the first magnetic attraction element, and the cutter can rotate relative to the first magnetic attraction element.

[0009] As an improvement of the above scheme, the connecting assembly further comprises a connecting element and a second magnetic attraction element, one end of the connecting element is in magnetic attraction connection with the first magnetic attraction element, and the other end is in magnetic attraction connection with the second magnetic attraction element, and the cutter can rotate relative to the second magnetic attraction element.

[0010] As an improvement of the above scheme, the connecting assembly further comprises a transition element and a rotating ring, the transition element comprises a magnetic attraction part and a connecting part, the rotating ring comprises an inner ring and an outer ring which are coaxially arranged, the rotating ring is arranged on the side of the transition element which is away from the second magnetic attraction element, the magnetic attraction part is in magnetic attraction connection with one end of the second magnetic attraction element which is away from the connecting element, the connecting part is annular and connected with the outer ring, the inner ring is connected with the cutter, and the inner ring can rotate relative to the outer ring.

[0011] As an improvement of the above scheme, the middle part of the pressing surface is provided with a through hole, the two sides of one end of the cutter which protrudes from the cutter cap are provided with inclined surfaces which are inclined to each other and intersect at the lower ends, the intersection line of the inclined surfaces extends downward to form a sharp head, the sharp head passes through the through hole and protrudes from the cutter cap.

[0012] As an improvement of the above scheme, the length range of the sharp head which protrudes from the through hole is between 0.001 mm and 0.1 mm.

[0013] The application also provides an intelligent numerical control cutter adjusting method, which automatically adjusts the height through the intelligent numerical control cutter sleeve device, and comprises the following steps:

[0014] The lifting driving element is controlled to drive the cutter sleeve body to ascend or descend to a preset height of the cutter sleeve body, and the control driving element is controlled to drive the cutter to ascend or descend to a preset height of the cutter.

[0015] The lifting driving element is controlled to drive the cutter sleeve body to descend until the cutter cap contacts the protective film.

[0016] The control regulation driving element drives the cutter to descend, and the voltage / current value fed back by the control regulation driving element is detected in real time;

[0017] When the voltage / current value fed back by the control regulation driving element reaches the preset range of voltage / current value, the driving of the cutter to descend is suspended, so that the cutter is kept at the height;

[0018] The scribing driving device drives the cutter to horizontally move to perform scribing operation on the protective film, in the process, the voltage / current value fed back by the control regulation driving element is detected in real time, and the lifting and falling of the cutter is controlled according to the voltage / current value fed back by the control regulation driving element.

[0019] As an improvement of the above-mentioned solution, the step of controlling the lifting and falling of the cutter according to the voltage / current value fed back by the control regulation driving element comprises:

[0020] When the voltage / current value fed back by the control regulation driving element is greater than the maximum value of the preset range of voltage / current value, the control regulation driving element is controlled to drive the cutter to lift until the voltage / current value fed back by the control regulation driving element returns to the preset range of voltage / current value;

[0021] When the voltage / current value fed back by the control regulation driving element is less than the minimum value of the preset range of voltage / current value, the control regulation driving element is controlled to drive the cutter to descend until the voltage / current value fed back by the control regulation driving element returns to the preset range of voltage / current value.

[0022] As an improvement of the above-mentioned solution, the minimum value of the preset range of voltage / current value is generated by subtracting a tool retract compensation value from a preset value of voltage / current value, and the maximum value of the preset range of voltage / current value is generated by adding a tool advance compensation value to the preset value of voltage / current value.

[0023] As an improvement of the above-mentioned solution, the following steps are further included:

[0024] The lifting and descending driving element is controlled to drive the cutter sleeve body to descend until the cutter cap contacts the protective film;

[0025] The control regulation driving element is controlled to drive the cutter to descend until the sharp head is inserted to a preset depth of the protective film, the voltage / current value fed back by the control regulation driving element at this time is detected, and the voltage / current value is taken as the preset value of voltage / current value.

[0026] The implementation of the present application has the following beneficial effects:

[0027] The intelligent numerical control tool adjusting tool sleeve device is provided with a tool sleeve body, an adjusting and controlling assembly, a connecting assembly and a tool marking assembly, wherein the tool sleeve body is driven to ascend and descend by a lifting driving element of a film marking driving device, the lifting driving element can drive the tool sleeve body to approach a protective film, so that the cutter cap of the tool marking assembly abuts against the protective film, the cutter of the tool marking assembly is driven to ascend and descend by an adjusting and controlling driving element of the adjusting and controlling assembly, the adjusting and controlling driving element can drive the cutter to protrude from the cutter cap, that is, the depth of the cutter inserted into the protective film can be controlled by the adjusting and controlling driving element, and in the process of marking the film, the adjusting and controlling driving element can also control the feeding and retreating of the cutter according to the voltage / current, so that the sheet metal can be prevented from being scratched or cut shallowly when the flatness of the sheet metal is poor, thereby improving the cutting effect.

[0028] By adopting the method, the depth of the cutter inserted into the protective film can be automatically controlled, the feeding and retreating of the cutter are controlled by the high-precision voltage / current value, the adjusting precision is high, the sheet metal can be prevented from being scratched or cut shallowly, the requirements of the cutting depth of the protective film with various thicknesses can be met, and the application range is wide. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic view of the intelligent numerical control tool adjusting tool sleeve device.

[0030] Figure 2 It is a sectional structural schematic view of the adjusting and controlling assembly and the connecting assembly.

[0031] Figure 3 It is Figure 2 It is a local enlarged view of A in FIG.

[0032] Figure 4 It is a structural schematic view of the tool marking assembly.

[0033] Figure 5 It is a flow chart of the intelligent numerical control tool adjusting method.

[0034] Figure 6 It is a flow chart of controlling the cutter according to the voltage value / current value fed back by the adjusting and controlling driving element.

[0035] Figure 7 It is a flow chart of presetting the voltage value / current value.

[0036] Figure 8 It is a flow chart of detecting whether the sharp head is marked to the sheet metal. DETAILED DESCRIPTION

[0037] For the purposes of the present invention, the technical solutions and advantages will be more apparent, the present invention will be further described in detail below with reference to the drawings. Only this statement, the up, down, left, right, front, back, inside, outside and other orientation words appearing or about to appear in the present invention are based on the drawings of the present invention, which is not a specific limitation on the present invention.

[0038] Referring to Figure 1 and Figure 2 , the embodiment of the present invention discloses a kind of intelligent numerical control tool setting device, including membrane driving device 5, tool setting body 4 and the regulating component 1, connecting component 2 and scribe component 3 in the tool setting body 4, the membrane driving device 5 is used to drive the tool setting body 4 moves in two horizontal directions and one vertical direction, to cut the protective film on sheet metal, the membrane driving device 5 includes lifting drive piece 51, the tool setting body 4 is connected to the movable end of lifting drive piece 51, the lifting drive piece 51 is used to drive the tool setting body 4 together with the regulating component 1, connecting component 2 and scribe component 3 in the tool setting body 4 move in vertical direction, the tool setting body 4 includes drive end, the regulating component 1 includes regulating drive piece 11, the regulating drive piece 11 is fixed to the drive end, the connecting component 2 includes at least one magnetic attraction piece, the magnetic attraction piece has magnetism, can be connected with the movable end of regulating drive piece 11 magnetic attraction, magnetic attraction connection is that the magnetic attraction piece is connected with the movable end of regulating drive piece 11 by magnetic force, the regulating drive piece 11 can drive the magnetic attraction piece linearly elevates, so that the regulating drive piece 11 can drive scribe component 3 linearly elevates by connecting component 2.In the embodiment, the regulating drive piece 11 is preferably micro servo cylinder, micro servo cylinder can realize 1-5 μm's feed accuracy, can realize higher precision automatic regulation.

[0039] The cutter assembly 3 comprises a cutter cap 31 and a cutter 32, the cutter cap 31 is sleeved outside the cutter end of the cutter sleeve body 4, the bottom side of the cutter cap 31 is provided with a pressing surface 311, one end of the cutter 32 is connected with the magnetic attraction element in a magnetic attraction mode, and the other end of the cutter 32 can protrude from the pressing surface 311 under the driving of the control driving element 11. The magnetic attraction connection makes the cutter 32 lose the freedom of axial movement relative to the magnetic attraction element, but still has the freedom of rotational movement relative to the magnetic attraction element, so that when the cutter sleeve body 4 is driven to move horizontally by the film cutting driving device 5, when the cutter 32 encounters a change in the cutting direction, the cutter 32 can automatically rotate relative to the magnetic attraction element to ensure that the end of the cutter 32 can always cut the protective film in a vertical direction. At the same time, the control driving element 11 can drive the cutter 32 to perform high-precision feed and retreat, so as to accurately control the depth of the cutter 32 inserted into the protective film, and in the process of cutting, the lifting of the cutter 32 can be controlled by high-precision numerical values such as voltage and current, so that when encountering a metal plate with poor flatness, the metal plate can be prevented from being scratched or cut too shallowly, and a better cutting effect can be achieved.

[0040] The beneficial effects of the embodiment of the present application are as follows:

[0041] The intelligent numerical control cutter sleeve device of the embodiment of the present application is provided with a cutter sleeve body 4, a control assembly 1, a connecting assembly 2 and a cutter assembly 3, wherein the cutter sleeve body 4 is driven to lift by a lifting driving element 51 of a film cutting driving device 5, the lifting driving element 51 can drive the cutter sleeve body 4 to approach the protective film, so that the cutter cap 31 of the cutter assembly 3 abuts against the protective film, and the cutter 32 of the cutter assembly 3 is driven to lift by a control driving element 11 of the control assembly 1, the control driving element 11 can drive the cutter 32 to protrude from the cutter cap 31, that is, the depth of the cutter 32 inserted into the protective film can be controlled by the control driving element 11, and in the process of cutting the film, the control driving element 11 can also control the feed and retreat of the cutter 32 according to voltage / current, so that when encountering a metal plate with poor flatness, the metal plate can be prevented from being scratched or cut too shallowly, thereby improving the cutting effect.

[0042] Referring to Figure 4, in order to facilitate the protrusion of the cutter 32 from the cutter cap 31, the cutter cap 31 is provided with a through hole 312, the cutter 32 passes through the through hole 312, the part of the cutter 32 protruding from the through hole 312 is the part of the cutting protective film, the cutter 32 is provided with two inclined surfaces 321 on both sides of one end protruding from the cutter cap 31, the intersection line of the inclined surfaces 321 extends downward to form a sharp head 322, the sharp head 322 passes through the through hole 312 and protrudes from the cutter cap 31. The sharp head 322 can be inserted into the protective film, the intersection line of the inclined surfaces 321 forms a cutting edge, because the inclined surfaces 321 are arranged inclined to each other, the cutter 32 will form an eccentric shape, and this eccentric structure will make the cutter 32 rotate when the moving mechanism drives it to turn under the resistance of the protective film itself, so that the intersection line of the inclined surfaces 321 can cut the protective film directly.

[0043] The lower pressing surface 311 is gradually inclined downward toward the center, the through hole 312 is arranged in the middle of the lower pressing surface 311, the solid part of the through hole 312 can press the surface of the protective film, and the length of the sharp head 322 protruding from the through hole 312 is between 0.001mm and 0.1mm. Under the high-precision adjustment of the control driving element 11, the sharp head 322 can be adjusted with an accuracy of more than 0.001mm, and because the thickness of the existing protective film is generally less than 0.1mm, the length of the sharp head 322 protruding from the through hole 312 should not exceed 0.1mm.

[0044] Referring to Figure 2 , in order to make the cutter 32 not only receive the lifting drive of the control driving element 11, but also rotate, the connecting assembly 2 includes a first magnetic attraction element 21, the control assembly 1 further includes a telescopic rod 12, the telescopic rod 12 is in transmission connection with the control driving element 11, the control driving element 11 can drive the telescopic rod 12 to vertically lift, the first magnetic attraction element 21 is arranged between the telescopic rod 12 and the cutter 32, the first magnetic attraction element 21 has a magnetic force, through the magnetic attraction force, the first magnetic attraction element 21 is in magnetic attraction connection with the telescopic rod 12, at the same time, the first magnetic attraction element 21 can also directly or indirectly attract the cutter 32, because the magnetic attraction connection has a certain rotation freedom, at the same time, it can also ensure that the cutter 32 is tightly connected with the connecting assembly 2, therefore, the control driving element 11 can drive the cutter 32 to lift through the first magnetic attraction element 21, at the same time, the cutter 32 can also rotate relative to the first magnetic attraction element 21.

[0045] Further, in the case that the tool sleeve body 4 is long, in order to reduce the weight of the magnetic element as much as possible, the first magnetic element 21 is shortened as much as possible, and the connecting assembly 2 further comprises a connecting element 22 and a second magnetic element 23, the connecting element 22 is a magnetic material, one end of the connecting element 22 is magnetically connected with the first magnetic element 21, and the other end is magnetically connected with the second magnetic element 23, the second magnetic element 23 is shortened as much as possible, and the connecting element 22 plays a role of lengthening the whole connecting assembly 2, so that the total length (total weight) of the first magnetic element 21 and the second magnetic element 23 accounts for a smaller proportion in the whole connecting assembly 2. In this case, the tool 32 can rotate relative to the second magnetic element 23.

[0046] Further, referring to Figure 3 , in order to make the tool 32 rotate smoothly and be able to respond quickly to the rotation, the connecting assembly 2 further comprises a transition element 24 and a rotating ring 25, the transition element 24 comprises a magnetic attraction part 241 and a connecting part 242, the rotating ring 25 comprises an inner ring 251 and an outer ring 252 coaxially arranged, the rotating ring 25 is arranged on the side of the transition element 24 away from the second magnetic element 23, the magnetic attraction part 241 is magnetically connected to one end of the second magnetic element 23 away from the connecting element 22, the connecting part 242 is annular and connected with the outer ring 252, and the inner ring 251 is connected with the tool 32. The transition element 24 is used to separate the tool 32 from the second magnetic element 23, so as to provide the conditions for the rotation of the tool 32, and specifically, the transmission of the second magnetic element 23 is isolated to the outer ring 252 through the connecting part 242, and the rotation of the tool 32 can be realized through the mutual rotation between the inner ring 251 and the outer ring 252.

[0047] Referring to Figure 5 , the embodiment of the application further discloses an intelligent numerical control tool adjusting method, which automatically adjusts the height through the intelligent numerical control tool adjusting sleeve device, and comprises the following steps:

[0048] S01: controlling the lifting driving element 51 to drive the tool sleeve body 4 to ascend or descend to a preset height of the tool sleeve body 4, and controlling the adjusting driving element 11 to drive the tool 32 to ascend or descend to a preset height of the tool 32;

[0049] S02: controlling the lifting driving element 51 to drive the tool sleeve body 4 to continue to descend until the tool cap 31 contacts with the protective film;

[0050] S03: controlling the adjusting driving element 11 to drive the tool 32 to continuously descend, and detecting the voltage / current value V1 fed back by the adjusting driving element 11 in real time;

[0051] S04: when the voltage / current value V1 fed back by the control driving part 11 reaches the preset range V0 of voltage / current value, the driving of the cutter 32 is suspended to keep the cutter 32 at the height;

[0052] S05: the cutter 32 is driven to move horizontally by the scribing driving device 5 to perform scribing operation on the protective film, in the process, the voltage / current value V2 fed back by the control driving part 11 is detected in real time, and the lifting and falling of the cutter 32 is controlled according to the voltage / current value V2 fed back by the control driving part 11.

[0053] It should be noted that the control driving part 11 is preferably a micro servo cylinder, which can achieve a feed accuracy of 1-5 μm, and the control driving part 11 can feed back a high-precision voltage value and a current value according to its load, and in implementation, the voltage value or the current value can be selected for control, when the resistance of the control driving part 11 increases, the voltage / current value fed back by the control driving part 11 increases, when the resistance of the control driving part 11 decreases, the voltage / current value fed back by the control driving part 11 decreases, and when the resistance of the control driving part 11 remains unchanged, the voltage / current value fed back by the control driving part 11 remains unchanged. When the cutter 32 is inserted into the protective film, the control driving part 11 is subjected to resistance, and the voltage / current value fed back by the control driving part 11 increases, as the cutter 32 penetrates deeper, the friction of the protective film on the cutter 32 increases, thereby continuously increasing the resistance of the control driving part 11, and continuously increasing the voltage / current value fed back by the control driving part 11. In addition, in the process of cutting the protective film, when the cutter 32 encounters a protruding part of the metal sheet, the cutting resistance increases, thereby increasing the voltage / current value fed back by the control driving part 11, and when the cutter 32 encounters a recessed part of the metal sheet, the cutting resistance decreases, thereby decreasing the voltage / current value fed back by the control driving part 11.

[0054] In S01, the system controls the lifting and falling driving part 51 in the scribing driving device 5 to drive the cutter sleeve body 4 to rise or fall to a preset height of the cutter sleeve body 4, which can be a reference height determined by manual measurement, or a reference height determined by using a range finder, which has a safe distance from the protective film, this step is equivalent to the resetting process of the cutter sleeve body 4, in the process, the lifting and falling driving part 51 can move the cutter sleeve body 4 to the reference height at a faster speed.

[0055] The control driving element 11 drives the cutter 32 to rise or fall to the preset height of the cutter 32, which is also a reset process. In the embodiment, the cutter 32 can be raised to a position where the sharp head 322 does not protrude from the cutter cap 31, or a distance of the sharp head 322 protruding from the cutter cap 31 can be set, and the cutter 32 is driven to reach the position to reset.

[0056] The preset height has the advantage that the falling distance of the cutter body 4 and the cutter 32 relative to the preset height can be directly controlled, so that the preset state can be quickly reached, that is, the cutter cap 31 can directly press the protective film and the sharp head 322 can be inserted into the protective film to an appropriate depth, so that the protective film can be immediately cut.

[0057] In S02, the system continues to control the lifting driving element 51 to drive the cutter body 4 to fall, and since the cutter body 4 is close to the protective film / panel at this time, in order to avoid impact on the cutter body and the sharp head 322, the lifting driving element 51 drives the cutter body 4 to fall at a slower speed, so that the cutter cap 31 contacts the protective film. In the initial debugging, when the distance by which the cutter body 4 falls from the reference height of the cutter body 4 to press the cutter cap 31 on the protective film is unknown, the control can be performed by manual visual inspection.

[0058] A pressure sensor is arranged on the cutter cap 31 or the panel or the workbench, and the state of the cutter body 4 being pressed down is detected by the pressure sensor. When the pressure sensor feeds back a significant reading, it means that the cutter cap 31 contacts the protective film, and the cutter body 4 stops falling.

[0059] Alternatively, an infrared detector is arranged on the workbench, and when the cutter cap 31 falls onto the protective film, the infrared detector detects the position of the cutter cap 31, that is, the cutter body 4 stops falling.

[0060] In S03, the voltage / current value fed back by the control driving element 11 changes according to the depth of the sharp head 322 inserted into the protective film, which is specifically that when the insertion depth increases, the voltage / current value V1 fed back by the control driving element 11 increases.

[0061] In S04, as the depth of the sharp head 322 inserted into the protective film increases, the voltage / current value V1 fed back by the control driving element 11 increases, until the voltage / current value reaches the preset range V0, and the cutter 32 stops falling. At this time, the sharp head 322 is inserted into the protective film to an appropriate depth, and generally, the sharp head 322 needs to be inserted into the protective film to a distance of 3 / 4 of the thickness of the protective film to obtain a better cutting effect (neither scratching the panel nor cutting too shallowly).

[0062] In S05, the horizontal moving mechanism of the scribing device 5 can drive the cutter 32 to move horizontally, so that the cutter 32 cuts the protective film. In this process, the resistance of the cutter 32 in the protective film may change due to the unevenness of the metal plate, so that the voltage / current value V2 fed back by the control driving element 11 changes. In this process, by comparing the voltage / current value V2 fed back by the control driving element 11 with the preset range V0 of the voltage / current value, the control of the cutter 32 can be realized. The process of keeping the voltage / current value V2 fed back by the control driving element 11 in the preset range V0 of the voltage / current value, that is, the process of keeping the depth of the sharp head 322 inserted into the protective film at an appropriate depth.

[0063] Specifically, referring to Figure 6 The step of controlling the lifting and falling of the cutter 32 according to the voltage / current value fed back by the control driving element 11 includes:

[0064] S51: When the voltage / current value V2 fed back by the control driving element 11 is greater than the maximum value of the preset range V0 of the voltage / current value, the control driving element 11 is controlled to drive the cutter 32 to rise until the voltage / current value V2 fed back by the control driving element 11 returns to the preset range V0 of the voltage / current value.

[0065] S52: When the voltage / current value V2 fed back by the control driving element 11 is less than the minimum value of the preset range V0 of the voltage / current value, the control driving element 11 is controlled to drive the cutter 32 to fall until the voltage / current value V2 fed back by the control driving element 11 returns to the preset range V0 of the voltage / current value.

[0066] As described above, when the voltage / current value V2 fed back by the control driving element 11 is greater than the maximum value of the preset range V0 of the voltage / current value, it reflects that the resistance of the sharp head 322 is increased due to the protrusion of the metal plate, etc. At this time, the cutter 32 needs to be controlled to rise to avoid the sharp head 322 of the same height scribing the protruding metal plate. In the process of rising of the cutter 32, the resistance of the cutter 32 will also decrease, so that the voltage / current value V2 fed back by the control driving element 11 decreases, so that it returns to the preset range V0 of the voltage / current value.

[0067] Conversely, when the voltage / current value V2 fed back by the control driving element 11 is less than the minimum value of the preset range V0 of the voltage / current value, it reflects the situation that the resistance received by the sharp head 322 is reduced due to the concave metal sheet, etc. At this time, the cutter 32 needs to be controlled to descend to avoid the situation that the sharp head 322 at the same height cannot cut the protective film of the concave metal sheet to the appropriate position. During the descent of the cutter 32, the resistance received by the cutter 32 will also increase, so that the voltage / current value V2 fed back by the control driving element 11 increases, so that it returns to the preset range V0 of the voltage / current value.

[0068] It should be noted that the minimum value V01 of the preset range V0 of the voltage / current value is generated by subtracting the tool withdrawal compensation value A1 from the preset value V of the voltage / current value, i.e. V01 = V-A1, and the maximum value V02 of the preset range V0 of the voltage / current value is generated by adding the tool insertion compensation value A2 to the preset value V of the voltage / current value, i.e. V02 = V+A2. The tool withdrawal compensation value A1 and the tool insertion compensation value A2 are determined by factors such as the wear of the cutter 32, the thickness of different protective films, and the precision of the control driving element 11. Specifically, when the cutter 32 is worn more, the resistance generated when it is inserted into the protective film and when it is cutting the film increases. At this time, the tool insertion compensation value A2 needs to be increased, so that the sharp head 322 can be smoothly inserted into the appropriate position of the protective film and cut. The tool withdrawal compensation value A1 can remain unchanged or be appropriately reduced. When it is necessary to cut a thinner protective film, the depth of insertion of the sharp head 322 into the protective film needs to be appropriately reduced. At this time, the tool withdrawal compensation value A1 needs to be increased and the tool insertion compensation value A2 needs to be reduced, so as to prevent the sharp head 322 from being inserted too deeply.

[0069] Among them, referring to Figure 7 The setting step of the preset range of the voltage / current value is as follows:

[0070] S06: Control the lifting driving element 51 to drive the cutter sleeve main body 4 to descend until the cutter cap 31 contacts the protective film.

[0071] S07: Control the control driving element 11 to drive the cutter 32 to descend until the sharp head 322 is inserted to a preset depth of the protective film. Detect the voltage / current value fed back by the control driving element 11 at this time, and take this voltage / current value as the preset value of the voltage / current value.

[0072] During the initial debugging, the depth of about 3 / 4 of the thickness of the protective film can be taken as the preset depth. The voltage / current value fed back by the control driving element 11 when the sharp head 322 is inserted to the preset depth is recorded, and this voltage / current value is taken as the preset value of the voltage / current value.

[0073] The cutter 32 and the worktable on which the sheet metal is placed are provided with an electric circuit, and a signal device is arranged in the electric circuit, and the cutter 32 and the worktable constitute the switch contact of the electric circuit, and since the sheet metal can be conductive with the worktable, when the cutter 32 directly contacts the sheet metal, the electric circuit is conducted, and the signal device can send an alarm signal. The signal sent by the signal device can be a shutdown signal sent to the electric control system, can be an audible and visual signal capable of attracting the attention of the user, and can also be a combination of the above two.

[0074] Referring to Figure 8 , in order to accurately detect whether the sharp head 322 scratches the sheet metal, the following steps are provided:

[0075] S08: In the process of setting the preset range of the voltage / current value, in the process of driving the cutter 32 to continuously descend by the control driving element 11, or in the process of driving the cutter 32 to move horizontally to perform the film scratching operation on the protective film by the film scratching driving device 5, if the signal device sends an alarm signal, the above process is stopped, and the cutter 32 is kept stationary.

[0076] An electric circuit is arranged between the worktable on which the sheet metal is placed and the cutter 32, and when the sharp head 322 inserts into the protective film or cuts the protective film, if the sharp head 322 does not cut through the protective film, the protective film is blocked between the sharp head 322 and the sheet metal, and the sharp head 322 and the worktable do not form a conduction circuit, and if the sharp head 322 cuts through the protective film, the sharp head 322 will contact the sheet metal, and there is an electric conduction between the sheet metal and the worktable, at this time, the cutter 32 and the worktable form a conduction circuit, and the signal device in the conduction circuit sends a signal to inform the system to stop, so as to achieve the effect of protecting the sheet metal. Keeping the cutter 32 stationary can facilitate the user to observe the position of the sharp head 322 and identify other possible problems.

[0077] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. An intelligent CNC tool setting and sheathing device, characterized in that: The device comprises a film cutting driving device, a cutter sheath body, a regulating component, a connecting component and a cutter component, the film cutting driving device comprises a lifting driving element, the cutter sheath body is connected to the movable end of the lifting driving element, the cutter sheath body comprises a driving end, the regulating component comprises a regulating driving element, the regulating driving element is fixed to the driving end, the connecting component comprises at least one magnetic attraction element, the movable end of the regulating driving element is magnetically connected to one end of the magnetic attraction element, and the regulating driving element can drive the magnetic attraction element to linearly lift. The cutter component comprises a cutter cap and a cutter tool, the cutter sheath body comprises a cutter end, the cutter cap is sleeved outside the cutter end, the bottom side of the cutter cap is provided with a pressing surface, one end of the cutter tool is magnetically connected to the magnetic attraction element, and the other end of the cutter tool can protrude from the pressing surface. The connecting component comprises a first magnetic attraction element, the regulating component further comprises a telescopic rod, the telescopic rod is in transmission connection with the regulating driving element, the regulating driving element can drive the telescopic rod to vertically lift, the first magnetic attraction element is arranged between the telescopic rod and the cutter tool, the first magnetic attraction element is magnetically connected to the telescopic rod, the regulating driving element can drive the cutter tool to lift through the first magnetic attraction element, and the cutter tool can rotate relative to the first magnetic attraction element.

2. The intelligent numerical control tool holder device according to claim 1, wherein, The connecting component further comprises a connecting element and a second magnetic attraction element, one end of the connecting element is magnetically connected to the first magnetic attraction element, the other end of the connecting element is magnetically connected to the second magnetic attraction element, and the cutter tool can rotate relative to the second magnetic attraction element.

3. The intelligent CNC tool holder device of claim 2, wherein, The connecting component further comprises a transition element and a rotating ring, the transition element comprises a magnetic attraction part and a connecting part, the rotating ring comprises an inner ring and an outer ring which are coaxially arranged, the rotating ring is arranged on the side of the transition element which is away from the second magnetic attraction element, the magnetic attraction part is magnetically connected to one end of the second magnetic attraction element which is away from the connecting element, the connecting part is annularly arranged and connected to the outer ring, the inner ring is connected to the cutter tool, and the inner ring can rotate relative to the outer ring.

4. The intelligent CNC tool holder device of claim 1, wherein, A through hole is arranged in the middle of the pressing surface, and the two sides of one end of the cutter tool which protrudes from the cutter cap are provided with inclined surfaces which are inclined to each other and intersect at the lower ends, the intersection line of the inclined surfaces extends downward to form a sharp head, the sharp head passes through the through hole and protrudes from the cutter cap.

5. The intelligent CNC tool holder device of claim 4, wherein, The length range of the sharp head which protrudes from the through hole is 0.001mm-0.1mm.

6. An intelligent numerical control tool setting method, characterized by, The device is automatically adjusted in height by the intelligent numerical control cutter sheath device, and comprises the following steps: controlling the lifting driving element to drive the cutter sheath body to ascend or descend to a preset height of the cutter sheath body; and controlling the regulating driving element to drive the cutter tool to ascend or descend to a preset height of the cutter tool; controlling the lifting driving element to drive the cutter sheath body to descend until the cutter cap contacts the protective film; controlling the regulating driving element to drive the cutter tool to descend, and detecting the voltage value / current value fed back by the regulating driving element in real time; when the voltage value / current value fed back by the regulating driving element reaches a preset range of voltage value / current value, the driving of the cutter tool is paused, so that the cutter tool is kept at the height; and controlling the lifting driving element to drive the cutter sheath body to ascend to the preset height of the cutter sheath body. The scribe drive device drives the cutter to move horizontally to perform scribe operation on the protective film, and in the process, the voltage / current value fed back by the regulating drive member is detected in real time, and the voltage / current value fed back by the regulating drive member is used to control the lifting and lowering of the cutter; The minimum value of the preset range of the voltage / current value is generated by subtracting the tool withdrawal compensation value from the preset value of the voltage / current value, and the maximum value of the preset range of the voltage / current value is generated by adding the tool feeding compensation value to the preset value of the voltage / current value.

7. The intelligent CNC tool setting method of claim 6, wherein, The step of controlling the lifting and lowering of the cutter according to the voltage / current value fed back by the regulating drive member comprises: When the voltage / current value fed back by the regulating drive member is greater than the maximum value of the preset range of the voltage / current value, the regulating drive member is controlled to drive the cutter to rise until the voltage / current value fed back by the regulating drive member returns to the preset range of the voltage / current value; When the voltage / current value fed back by the regulating drive member is less than the minimum value of the preset range of the voltage / current value, the regulating drive member is controlled to drive the cutter to lower until the voltage / current value fed back by the regulating drive member returns to the preset range of the voltage / current value.

8. The intelligent CNC tool setting method of claim 6, wherein, Further comprising the following steps: The lifting and lowering drive member is controlled to drive the cutter to lower until the cutter cap contacts the protective film; The regulating drive member is controlled to drive the cutter to lower until the sharp head is inserted to a preset depth of the protective film, the voltage / current value fed back by the regulating drive member at this time is detected, and the voltage / current value is used as the preset value of the voltage / current value.

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