Milling cutter setting mechanism, milling machine and milling cutter setting control method

Abstract

The present invention discloses a milling cutter setting mechanism, a milling machine and a milling cutter setting control method, wherein the milling cutter setting mechanism is arranged on a worktable of the milling machine, the worktable has a workpiece mounting slot, and the milling cutter setting mechanism comprises: a moving part, the moving part is arranged in the workpiece mounting slot, and the moving part can move along the tool setting feed direction of the milling machine, the tool setting feed direction is perpendicular to the worktable; and an in-position sensor, the in-position sensor is fixedly arranged on the worktable, and the in-position sensor is arranged on the side of the moving part away from the milling cutter, and the in-position sensor is used to send a tool setting completion signal when the moving part is pushed by the milling cutter to trigger the in-position sensor. The milling cutter setting device provided by the present invention can obtain a milling cutter installation height parameter value with higher precision, that is, the milling cutter setting precision is higher.

Description

Technical Field

[0001] The invention relates to the field of punching equipment, and in particular to a milling cutter setting mechanism, a milling machine and a milling cutter setting control method. Background Art

[0002] During the machining process, it is usually necessary to replace different milling cutters to achieve cutting in different areas. After replacing the milling cutter, precise Z-axis tool alignment is required to ensure that the Z-axis depth of the template remains consistent after the tool change.

[0003] However, the milling cutter setting accuracy in the related art is not high. Summary of the invention

[0004] The main purpose of the present invention is to provide a milling cutter setting mechanism, a milling machine and a milling cutter setting control method, aiming to solve the technical problem of low milling cutter setting accuracy in the prior art.

[0005] To achieve the above object, the present invention proposes a milling cutter setting mechanism, which is arranged on a workbench of a milling machine, and the workbench has a workpiece mounting groove, and the milling cutter setting mechanism includes:

[0006] A moving member, the moving member is disposed in the workpiece mounting groove, and the moving member can move along a tool setting and feeding direction of the milling machine, the tool setting and feeding direction being perpendicular to the workbench; and

[0007] An in-position sensor is fixedly arranged on the workbench and arranged on a side of the moving part away from the milling cutter. The in-position sensor is used to send a tool alignment completion signal when the moving part is pushed by the milling cutter to trigger the in-position sensor.

[0008] Optionally, also include:

[0009] A first buffer member is disposed between the moving member and the workbench.

[0010] Optionally, the in-position sensor is arranged on a side of the workbench away from the milling cutter;

[0011] A through hole is formed on the bottom wall of the workpiece mounting groove, the first buffer is fixedly disposed in the through hole, and the first buffer has a first mounting hole formed along the tool feed direction, the first mounting hole passes through the first buffer;

[0012] Wherein, the moving part passes through the first buffer part to cooperate with the in-place sensor.

[0013] Optionally, the in-position sensor is configured as a photoelectric sensor, and a light shielding sheet is provided at one end of the moving member close to the photoelectric sensor, and the light shielding sheet is used to trigger the photoelectric sensor.

[0014] Optionally, the photoelectric sensor is arranged on one radial side of the moving part;

[0015] And the moving part includes:

[0016] a moving member body, the moving member body being movably disposed in the first mounting hole; and

[0017] An extension part, one end of which is connected to an end of the moving part body away from the milling cutter, and the other end of which is connected to the shading sheet.

[0018] Optionally, also include:

[0019] A second buffer member, the second buffer member is disposed on the workbench, and the second buffer member has a second mounting hole opened along the knife feed direction; and

[0020] a guide member, the guide member being movably disposed in the second mounting hole;

[0021] Wherein, one end of the guide member is connected to the extension portion.

[0022] Optionally, a mold surface simulation piece is also included, and the mold surface simulation piece is detachably disposed in the workpiece mounting groove.

[0023] In a second aspect, an embodiment of the present invention further provides a milling cutter setting control method, the method being applicable to a milling machine, the milling machine comprising a milling cutter setting mechanism, the control method comprising the following steps:

[0024] After the milling cutter is replaced, obtaining a first distance from the milling cutter to the mold surface;

[0025] A first control signal is sent to the spindle box of the milling machine to control the spindle box to drive the milling cutter to move the first distance from a preset tool change position along the tool setting feed direction at a first preset speed, and then continue to move at a second preset speed until a tool setting completion signal is received when the in-position sensor is triggered by the moving part, wherein the first preset speed is greater than the second preset speed.

[0026] Optionally, the step of obtaining a first distance from the milling cutter to the mold surface after the milling cutter is replaced includes:

[0027] After the milling cutter is replaced, a second control signal is sent to the spindle box of the milling machine to control the spindle box to drive the milling cutter to move along the tool feed direction until the milling cutter contacts the mold surface simulation part;

[0028] In response to the contact between the milling cutter and the mold surface simulation part, a first distance moved by the milling cutter in the tool feed direction is acquired.

[0029] In a third aspect, an embodiment of the present invention further provides a milling machine, comprising:

[0030] Workbench;

[0031] A spindle box, wherein the spindle shaft has a turret, the turret can move along the tool setting and feeding direction, and the turret is detachably connected to a milling cutter;

[0032] A milling cutter setting mechanism, wherein the milling cutter setting mechanism is arranged on a workbench; and

[0033] At least one processor, a memory, and a milling cutter setting control program stored in the memory and executable on the processor, wherein the milling cutter setting control program implements the steps of the milling cutter setting control method when executed by the processor.

[0034] The technical solution of the present invention provides a milling cutter setting mechanism, a milling machine and a milling cutter setting control method, wherein the milling cutter setting mechanism extends the triggering distance of the milling cutter by fixing an in-place sensor on a workbench and using a moving part that moves along the Z-axis feed direction of the milling cutter in a workpiece mounting groove under the push of the milling cutter until the moving part triggers the in-place sensor, thereby accurately detecting the distance of the milling cutter from the preset tool change position to the in-place sensor at the fixed position, thereby obtaining the parameter value of the milling cutter installation height after the tool change of the milling machine, thereby facilitating improving the milling groove depth accuracy of the milling cutter after the tool change of the milling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0036] Figure 1 It is a structural schematic diagram of an embodiment of a milling machine of the present invention;

[0037] Figure 2 A side view of an embodiment of a milling machine of the present invention, wherein the milling cutter touches a mold surface simulation member;

[0038] Figure 3 A side view of an embodiment of a milling machine of the present invention, wherein the milling cutter moves downward until it touches the moving member and triggers the in-position sensor;

[0039] Figure 4It is a flow chart of the first embodiment of the milling cutter setting control method of the present invention.

[0040] Description of Figure Numbers:

[0041]

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] See also Figures 1 to 3 , Figures 1 to 3 It is a schematic structural diagram of a milling cutter setting mechanism involved in an embodiment of the present invention.

[0048] In this embodiment, the milling cutter alignment mechanism includes a moving member 210 and an in-position sensor 220 .

[0049] The moving member 210 is arranged in the workpiece mounting slot 111 of the milling machine, that is, located on the feed path of the milling cutter 140, and the moving member 210 can move along the tool setting feed direction of the milling machine. The in-position sensor 220 is fixedly arranged on the side of the moving member 210 away from the milling cutter, and the in-position sensor 220 is used to send a tool setting completion signal when the moving member 210 is pushed by the milling cutter to trigger the in-position sensor 220.

[0050] It should be noted that the milling machine in the embodiment of the present invention can be a horizontal milling machine or a vertical milling machine. In this embodiment, the milling machine is a vertical milling machine, and the vertical milling machine is also used as an example for description below. At this time, the tool feed direction of the milling machine is the Z-axis direction of the vertical milling machine.

[0051] According to the content disclosed in this embodiment, it is easy for a person skilled in the art to think of the specific structure when the milling machine is a horizontal milling machine. Specifically, the moving member 210 is arranged in the workpiece mounting groove 111, and when the milling cutter 140 after the tool change is fed downward along the tool feed direction, the milling cutter 140 moves downward to the bottom end of the milling cutter 140 and contacts the moving member 210. The moving member 210 can also move along the tool feed direction of the milling machine in the workpiece mounting groove 111, so that after the moving member 210 contacts the milling cutter, it can move synchronously with the milling cutter 140 under the push of the milling cutter 140.

[0052] The in-position sensor 220 is arranged on the side of the moving member 210 that is away from the milling cutter, that is, in this embodiment, the in-position sensor 220 is located below the moving member 210. When the moving member 210 moves downward synchronously with the milling cutter 140, the moving member 210 gradually approaches the in-position sensor until the in-position sensor 220 is triggered. At this time, the in-position sensor 220 sends a tool setting completion signal, and the milling cutter 140 stops moving. At this time, the installation height of the milling cutter can be obtained according to the full moving distance of the milling cutter 140.

[0053] It is easy to understand that in the related technology, the milling cutter is set manually with poor accuracy. After the milling cutter is replaced, it is difficult for the CNC system of the milling machine to obtain the precise value of the milling cutter installation height parameter. As a result, in the subsequent milling process, the milling groove depth setting parameter value of the milling cutter does not conform to the actual situation after the cutter is replaced, and the depth of the milling groove milled after the milling cutter is replaced is different.

[0054] In this embodiment, the in-position sensor 220 is fixedly set on the workbench 110, and the moving part 210 that moves along the Z-axis feed direction of the milling cutter under the push of the milling cutter 140 in the workpiece mounting groove 111 is used to extend the trigger distance of the milling cutter until the moving part 210 triggers the in-position sensor 220, so that the distance of the milling cutter from the preset tool change position to the in-position sensor 220 at the fixed position can be detected with high precision, so that the milling cutter installation height parameter value after the milling machine tool is changed can be obtained, which is conducive to improving the milling groove depth accuracy of the milling cutter after the milling machine tool is changed. And by replacing the milling cutter trigger sensor with the moving part 210, the trigger distance of the milling cutter can be extended, that is, the in-position sensor 220 can be set at a position far away from the workbench 110, so as to avoid the fixed setting of the in-position sensor 220 affecting the normal milling operation of the milling cutter.

[0055] The milling cutter setting mechanism provided in this embodiment monitors whether the setting is completed by means of a sensor and also significantly improves the milling cutter setting efficiency.

[0056] Among them, at least a portion of the end face of the moving part 210 close to the milling cutter 140 can be set as a plane, which is perpendicular to the tool feed direction, so that the bottom ends of milling cutters of different specifications can immediately drive the moving part to move synchronously after contacting the end face of the moving part 210.

[0057] In one embodiment, in order to reduce the moving speed of the moving member 210 and avoid the moving member 210 from following the milling cutter feed at too high a speed to affect the trigger response time of the in-position sensor 220, resulting in a large error value of the monitored milling cutter installation height parameter, in this embodiment, the milling cutter setting mechanism further includes a first buffer 230, which is disposed between the moving member 210 and the workbench 110. The first buffer 230 is used to slow down and block the moving member 210 in the opposite direction to the movement of the milling cutter.

[0058] At the same time, the first buffer member 230 can also be used to push the moving member 210 back to the initial position along the tool feed direction after the milling cutter is aligned and the milling cutter moves away from the workbench 110 along the Z axis.

[0059] It is easy to understand that the first buffer 230 can be an elastic damper, and the moving member 210 reduces the moving speed through the elastic damper during the moving process. Alternatively, the first buffer 230 can also be a compression spring sleeved on the radial outer side of the moving member 210, and the present application does not limit the specific structure of the first buffer 230. Alternatively, the first buffer 230 and the moving member can also be integrated into a buffer, and the moving member is the shaft component in the buffer.

[0060] The in-position sensor 220 can be arranged in the workpiece mounting groove 111 of the workbench 110. Alternatively, in one embodiment, the in-position sensor 220 is arranged on the side of the workbench 110 away from the milling cutter. A through hole is provided on the bottom wall of the workpiece mounting groove 111, and the first buffer 230 is fixedly arranged in the through hole. The first buffer 230 has a first mounting hole provided along the direction of the tool feed, and the first mounting hole penetrates the first buffer 230. The moving member 210 is penetrated by the first buffer 230 to cooperate with the in-position sensor 220.

[0061] Specifically, in this embodiment, the in-position sensor 220 is arranged below the workbench 110, so as to avoid the in-position sensor 220 affecting the normal processing operation of the milling machine, and also avoid the iron filings in the workpiece mounting groove 111 affecting the sensing of the in-position sensor 220. At this time, a through hole for the moving part to move is provided on the bottom wall of the workpiece mounting groove 111, and a first buffer member 230 is fixedly installed in the through hole. The first buffer member 230 has a first mounting hole, and the moving part 210 can slide up and down in the first mounting hole along the tool feed direction. For example, the through hole can be set as a step hole, and the first buffer member 230 is mounted in the step hole. The hole with a smaller diameter in the step hole is a channel reserved for the moving part 210.

[0062] The in-place sensor 220 may be a contact sensor, for example, the in-place sensor 220 is triggered only when the end of the moving member contacts the in-place sensor 220, such as a short circuit tester, etc. Alternatively, in one embodiment, the in-place sensor 220 is configured as a photoelectric sensor, and a light shielding sheet 213 is provided at one end of the moving member close to the photoelectric sensor, and the light shielding sheet 213 is used to trigger the photoelectric sensor.

[0063] See also Figure 1 and Figure 3 The transmitting end and the receiving end of the photoelectric sensor can be arranged horizontally opposite to each other and spaced apart below the workbench 110. When the light shielding sheet 213 on the moving member 210 moves downward to enter the gap between the transmitting end and the receiving end, the receiving end cannot receive the light signal emitted by the transmitting end, and the moving member triggers the photoelectric touch sensor.

[0064] It is worth mentioning that the light shielding sheet can be fixedly arranged at the bottom of the moving member 210 by screws, or can be a part of the bottom of the moving member 210, for example, see Figure 1 The light shielding piece 213 may be a hook-shaped portion on the moving member 210 .

[0065] Compared with directly triggering the photoelectric sensor at the bottom of the milling cutter, the success rate of triggering the photoelectric sensor is low because the bottom structures of milling cutters of different specifications and styles are different, and the bottom of the milling cutter has curved surfaces such as grooves and blades. In this embodiment, the photoelectric sensor is triggered by the shading sheet 213, which is more reliable and stable.

[0066] In some embodiments, in order to facilitate installation of the photoelectric sensor, the photoelectric sensor is disposed on one radial side of the moving member 210 .

[0067] At this time, the moving member 210 includes a moving member body 211 and an extension portion 212. The moving member body 211 is movably disposed in the first mounting hole. One end of the extension portion 212 is connected to one end of the moving member 210 body away from the milling cutter, and the other end is connected to a light shielding sheet 213.

[0068] Specifically, the moving member body 211 can be constructed as a rod, the top of which is a cap with a diameter larger than the first mounting hole, so as to limit the maximum stroke of the moving member. The moving member body 211 moves in the first mounting hole, and the extension part 212 can be a block connected to the moving member body 211. The extension part 212 can be arranged horizontally, that is, the structure of the moving member body 211 is more compact. Figure 3 One end of the extension portion 212 can be connected to the bottom end of the moving part body 211 by threaded connection or welding, and the extension portion 212 extends to the outside of the workbench 110, and its end forms a hook shape, namely the light shielding sheet 213.

[0069] In some embodiments, since the extension portion 212 extends horizontally, that is, the photoelectric sensor and the moving member 210 are staggered, in order to reduce tool setting errors, the milling cutter tool setting assembly further includes a second buffer member 240 and a guide member 250 .

[0070] The second buffer member 240 is disposed on the workbench 110 and has a second mounting hole opened along the knife feed direction. The guide member 250 is movably disposed in the second mounting hole. One end of the guide member 250 is connected to the extension portion 212 .

[0071] See also Figure 2 and Figure 3 Specifically, at this time, the guide member 250 and the moving member body 211 are arranged in parallel. And the two are arranged at intervals from each other along the length direction of the extension part 212, so that when the moving member 210 and the milling cutter move downward synchronously, the guide member 250 and the extension part 212 are lowered together, avoiding the end of the extension part 212 away from the moving member 210 from tilting up and affecting the tool setting accuracy. And the extension part 212 is more firmly fixed on the moving member 210 and the guide member 250, so that the trajectory of the extension part 212 is more stable in the tool setting feed direction, avoiding the shaking or elasticity of the extension part itself affecting the accuracy of the moving member 210 triggering the in-position sensor 220.

[0072] In some embodiments, see Figure 2The milling cutter tool setting mechanism also includes a mold surface simulation part 260, which is detachably arranged in the workpiece mounting groove 111. The mold surface simulation part 260 can be a card, which is placed in the workpiece mounting groove 111 and is used to simulate the surface of the mold, so that the milling cutter can move from the preset tool change position to the first distance of the mold surface, which is conducive to the milling cutter to quickly feed within this distance, and then slowly feed after moving the first distance, thereby improving the tool setting efficiency.

[0073] See also Figure 1 An embodiment of the present invention further provides a milling machine, which includes a workbench 210, a spindle box 120, a turret 130, and a milling cutter setting mechanism, as well as at least one processor, a memory, and a milling cutter setting control program stored in the memory and executable on the processor. When the milling cutter setting control program is executed by the processor, the steps of the milling cutter setting control method as described below are implemented.

[0074] It should be noted that the milling machine in the embodiment of the present invention can be a horizontal milling machine or a vertical milling machine. In this embodiment, the milling machine is a vertical milling machine, and the vertical milling machine is also used as an example for description below. According to the content disclosed in this embodiment, ordinary technicians in this field can easily think of the specific structure when the milling machine is a horizontal milling machine.

[0075] Among them, the milling machine includes a turret 130, a spindle box 120 and a workbench 110. The milling cutter 140 is installed on the turret 130, and the turret is fixed on the spindle. The spindle box 120 includes an X-axis main machine, a Y-axis main machine and a Z-axis main machine, wherein the X-axis main machine is used to push the turret to feed on the X-axis, the Y-axis main machine pushes the turret to feed on the Y-axis, and the Z-axis main machine is used to push the turret to feed on the Z-axis. It is easy to understand that since the turret 130 and the spindle box 120 of the milling machine are the prior art in this field, they will not be repeated here. Among them, the milling cutter setting structure is installed on the workbench 110. The specific structure of the milling cutter setting mechanism refers to the above-mentioned embodiment. Since the present milling machine adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0076] The processor 301 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 301 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor 301 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 301 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. The processor 301 may also include an AI (Artificial Intelligence) processor, which is used to process the milling cutter setting operation, so that the milling cutter setting model can be trained and learned autonomously to improve efficiency and accuracy.

[0077] The memory 302 may include one or more computer-readable storage media, which may be non-transitory. The memory 302 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 302 is used to store at least one instruction, which is used to be executed by the processor 801 to implement the milling cutter tool setting method provided in the method embodiment of the present application.

[0078] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the milling machine, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0079] The embodiment of the present invention provides a milling cutter setting control method, referring to Figure 2 , Figure 2 Schematic diagram of the process of the first embodiment of the milling cutter setting method of the present invention.

[0080] In an embodiment of the present invention, a milling cutter setting control method is provided. The milling cutter setting control method can be applied to a processor of a milling machine numerical control system. The control method comprises the following steps:

[0081] S101, after the milling cutter 140 is replaced, a first distance from the milling cutter 140 to the mold surface is obtained.

[0082] In the above steps, when the milling cutter is replaced, the X-axis main machine, the Y-axis main machine and the Z-axis main machine drive the turret 130 to rise to the preset tool change position, remove the old milling cutter at the preset tool change position, and install the new milling cutter. Then, the first distance from the milling cutter to the mold surface is obtained, and the first distance is the rapid feed range of the milling cutter, so that in the subsequent tool setting process, the milling cutter quickly moves the first distance from the preset tool change position to improve the efficiency of the milling cutter tool setting.

[0083] It is worth mentioning that the preset tool change position is a fixed position set for each machine tool. At each tool change, the turret moves to the preset tool change position.

[0084] As an option of this embodiment, step S101 includes the following steps:

[0085] (1) After the milling cutter is replaced, a second control signal is sent to the spindle box of the milling machine to control the spindle box to drive the milling cutter to move toward the workbench 110 until the milling cutter contacts the mold surface simulation part.

[0086] This step is used to obtain the first distance. When or after the milling cutter is replaced, the mold surface simulation can be placed on the workbench 110. The mold surface simulation can be constructed as a card structure, which is directly placed horizontally on the workbench 110. The milling cutter moves from the preset tool change position toward the workbench 110 until the bottom end of the milling cutter contacts the mold surface simulation. Since this step has no effect on the final tool setting result, the contact between the mold surface simulation and the milling cutter can be judged by the naked eye. For example, the milling cutter first feeds in quickly, and then feeds in slowly when it is close to the mold surface simulation. Whether there is contact is determined by observing the scratches of the milling cutter on the mold surface simulation. It can also be determined by a short-circuit tester connected to the mold surface simulation.

[0087] (2) In response to the contact between the milling cutter and the mold surface simulation part, a first distance moved by the milling cutter in the tool feed direction is obtained.

[0088] When the milling cutter contacts the mold surface simulation part, the first distance moved by the milling cutter in the tool feed direction during this process is actively recorded and obtained. The first distance is the rapid feed range of the milling cutter.

[0089] S102, sending a first control signal to the Z-axis main machine of the milling machine to control the spindle box of the milling machine to drive the milling cutter to move a first distance from a preset tool change position at a first preset speed along the tool setting feed direction, and then continue to move at a second preset speed until a tool setting completion signal is received when the in-position sensor 220 is triggered by the moving part 210, wherein the first preset speed is greater than the second preset speed.

[0090] In this step, after the first distance is obtained, the milling cutter can be controlled to move from the preset tool change position to the moving member 210. It is easy to understand that the milling cutter tool setting in this embodiment is mainly tool setting on the Z axis, so the movement of the milling cutter on the X axis and the Y axis during the tool setting process starting from the preset tool change position does not affect the tool setting result on the Z axis of this embodiment.

[0091] During the movement of the milling cutter from the preset tool change position to the mold surface, the milling cutter can feed at a faster first preset speed. After moving the first distance on the Z axis of the milling cutter, in order to avoid the milling cutter from colliding with the workpiece or the moving part 210 due to untimely deceleration, causing the milling cutter to break or be damaged. Therefore, after the milling cutter reaches the height of the mold surface, the milling cutter needs to slow down and slowly approach the end face of the moving part 210. That is, the milling cutter continues to descend at a slower second preset speed. Among them, the second preset speed can be the slowest speed allowed by the milling machine, and its specific speed value can be determined according to the specific specifications of the machine tool. And the slower the second preset speed, the higher the accuracy of the milling cutter tool setting.

[0092] After the milling cutter contacts the end surface of the moving member 210, it drives the moving member 210 to continue to move downward synchronously at a second preset speed until the moving member 210 triggers the in-position sensor 220, that is, the milling cutter pushes the moving member 210 to move to the in-position sensor 220 at a fixed position. At this time, the in-position sensor 220 sends a tool alignment completion signal.

[0093] After the tool alignment is completed, the milling machine can record the full movement distance of the milling cutter on the Z axis, which includes the first distance from the preset tool change position on the Z axis to the mold surface, and also includes the distance from the mold surface to the triggering position sensor 220 on the Z axis. The sum of the two is the full movement distance on the Z axis. The distance from the bottom end of the milling cutter to the reference object can be obtained by measuring the full movement distance of the milling cutter from a fixed position, that is, the preset tool change position to another fixed position reference object, that is, the position sensor 220. This distance can be regarded as the milling cutter installation height parameter of the milling cutter. In the subsequent milling process, the milling groove depth and other parameters of the milling machine can be adjusted according to the milling cutter installation parameters to ensure the processing accuracy of the milling groove depth after the tool change.

[0094] Therefore, in this embodiment, by fixing the in-position sensor 220 on the workbench 110, and using the movable member 210 that moves along the milling cutter feed direction in the workpiece mounting groove 111 under the push of the milling cutter 140, the triggering distance of the milling cutter is extended until the movable member 210 triggers the in-position sensor 220, so that the distance of the milling cutter from the preset tool changing position to the in-position sensor 220 at the fixed position can be detected with high precision, so that the parameter value of the milling cutter installation height after the milling machine tool is changed can be obtained, which is beneficial to improve the milling groove depth accuracy of the milling cutter after the milling machine tool is changed.

[0095] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A milling cutter setting control method, characterized in that: The method is applicable to a milling machine, wherein the milling machine comprises a milling cutter setting mechanism, wherein the milling cutter setting mechanism is arranged on a workbench of the milling machine, wherein the workbench has a workpiece mounting groove, and the milling cutter setting mechanism comprises: A moving member, the moving member is arranged in the workpiece mounting groove, and the moving member can move along a tool setting and feeding direction of the milling machine, and the tool setting and feeding direction is perpendicular to the workbench; and An in-position sensor, the in-position sensor is fixedly arranged on the workbench, and the in-position sensor is arranged on a side of the moving part away from the milling cutter, and the in-position sensor is used to send a tool setting completion signal when the moving part is pushed by the milling cutter to trigger the in-position sensor; The control method comprises the following steps: After the milling cutter is replaced, a first distance between the milling cutter and the mold surface is obtained; Sending a first control signal to the spindle box of the milling machine to control the spindle box to drive the milling cutter to move the first distance from the preset tool change position along the tool setting feed direction at a first preset speed, and then continue to move at a second preset speed until receiving a tool setting completion signal sent by an in-position sensor when the moving part is triggered, wherein the first preset speed is greater than the second preset speed; The step of obtaining a first distance between the milling cutter and the mold surface after the milling cutter is replaced includes: After the milling cutter is replaced, a second control signal is sent to the spindle box of the milling machine to control the spindle box to drive the milling cutter to move along the tool feed direction until the milling cutter contacts the mold surface simulation part; In response to the contact between the milling cutter and the mold surface simulation part, a first distance moved by the milling cutter in the tool setting feed direction is obtained; the milling cutter tool setting mechanism also includes a mold surface simulation part, and the mold surface simulation part is detachably arranged in the workpiece mounting groove.

2. The milling cutter setting control method according to claim 1, characterized in that: The milling machine also includes: A first buffer is disposed between the moving member and the workbench.

3. The milling cutter setting control method according to claim 2, characterized in that: The in-position sensor is arranged on a side of the workbench away from the milling cutter; A through hole is formed on the bottom wall of the workpiece mounting groove, the first buffer is fixedly disposed in the through hole, and the first buffer has a first mounting hole formed along the tool feed direction, the first mounting hole passes through the first buffer; Wherein, the moving part passes through the first buffer part to cooperate with the in-place sensor.

4. The milling cutter setting control method according to claim 3, characterized in that: The in-position sensor is configured as a photoelectric sensor, and a light shielding sheet is disposed at one end of the moving member close to the photoelectric sensor, and the light shielding sheet is used to trigger the photoelectric sensor.

5. The milling cutter setting control method according to claim 4, characterized in that: The photoelectric sensor is arranged on one radial side of the moving part; And the moving part includes: a moving member body, the moving member body being movably disposed in the first mounting hole; and An extension part, one end of which is connected to an end of the moving part body away from the milling cutter, and the other end of which is connected to the shading sheet.

6. The milling cutter setting control method according to claim 5, characterized in that: The milling cutter setting mechanism also includes: A second buffer member, the second buffer member is disposed on the workbench, and the second buffer member has a second mounting hole opened along the knife feed direction; and a guide member, the guide member being movably disposed in the second mounting hole; Wherein, one end of the guide member is connected to the extension portion.

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