Tool magazine protection system of machine tool, machine tool and tool magazine protection method of machine tool

Abstract

The application provides a tool magazine protection system of a machine tool, a machine tool and a tool magazine protection method of a machine tool, which can solve the technical problem of low reliability of tool probe function in the related art. The tool magazine protection system of the machine tool comprises a tool magazine body, a probe probe tool, a flushing device, a tool handle air blowing device and a control unit; the tool magazine body is provided with a plurality of tool claws; the probe probe tool is loaded on a target tool claw; the flushing device is used for spraying cutting fluid to a preset position of the tool magazine body; the tool handle air blowing device is arranged on a main shaft of the machine tool or a tool changing position of the tool magazine body; the control unit is electrically connected with the tool handle air blowing device; the control unit is used for controlling the tool handle air blowing device to blow gas to the tool handle of the probe probe tool in response to a tool changing air blowing working condition. The control unit ensures that the cleaning time of the flushing device is synchronized with the cleaning and tool changing action of the air blowing device, eliminates the measurement error caused by tool handle pollution, and finally improves the functional reliability of the probe probe tool when used in the machine tool.

Description

Technical Field

[0001] This application relates to the field of machine tool technology, specifically to a tool magazine protection system for a machine tool, a machine tool, and a method for protecting the tool magazine of a machine tool. Background Technology

[0002] The automatic tool changer system of a CNC machine tool is a key component that determines machining efficiency and the degree of automation. During automatic tool changing, in order to ensure tool clamping accuracy, extend tool holder life, and avoid chip residue affecting tool changing reliability, modern machine tools are usually equipped with a tool magazine flushing system or a tool holder flushing system.

[0003] Currently, when the tool magazine performs a tool change operation, the flushing system sprays a large amount of cutting fluid onto the tool holder taper and the tool magazine sleeve to remove chips and impurities adhering to the tool holder surface, ensuring the fitting accuracy between the tool and the spindle taper hole. Meanwhile, to achieve functions such as online workpiece measurement, tool breakage detection, and machining process monitoring, more and more machine tools are equipped with probe tools in their tool magazines. These probe tools are loaded in the tool magazine sleeve in the form of standard tool holders and participate in the normal tool change process along with the automatic tool changer system.

[0004] However, when the tool magazine flushing system or tool holder flushing system is turned on, a large amount of cutting fluid is sprayed directly onto the tool holder and tool magazine sleeve area. The cutting fluid seeps into the probe housing through the gaps, causing faults such as short circuits in the probe circuit, abnormal signal transmission, or triggering false signals, which seriously affects the reliability and service life of the probe function. Summary of the Invention

[0005] This application provides a tool magazine protection system for a machine tool, a machine tool, and a method for protecting the tool magazine of a machine tool, which can solve the technical problem of low reliability of the tool probe function in related technologies.

[0006] To achieve the above objectives, this application provides the following technical solution: In a first aspect, this application provides a tool magazine protection system for a machine tool, comprising a tool magazine body, a probe tool, a flushing device, a tool holder blowing device, and a control unit; the tool magazine body is provided with multiple tool jaws; the probe tool is loaded onto a target tool jaw, the probe tool comprising a tool holder, a probe body, and a probe, the probe body being fixed to the front end of the tool holder, and the probe being installed on the front end of the probe body; the target tool jaw is one of the multiple tool jaws; the flushing device is used to spray cutting fluid to a preset position on the tool magazine body; the tool holder blowing device is disposed on the spindle of the machine tool or at the tool changing position of the tool magazine body; the control unit is electrically connected to the tool holder blowing device; the control unit is used to control the tool holder blowing device to blow gas to the tool holder of the probe tool in response to the tool changing blowing condition.

[0007] Based on the above description of the structure of the tool magazine protection system for the machine tool provided in the embodiments of this application, it can be seen that the flushing device is configured to spray cutting fluid into a preset position on the tool magazine body. This function can clean the area in the tool magazine where the probe tool is stored, reducing the chips and residual cutting fluid that may exist in this area, thereby reducing the risk of contaminants adhering to the tool holder and probe. The tool holder blowing device is set on the spindle of the machine tool or at the tool changing position of the tool magazine body. Its target includes the tool holder of the probe tool. This device can use airflow to remove liquid stains or particles from the surface of the tool holder during blowing. The control unit is electrically connected to the tool holder blowing device and controls the device to blow gas to the tool holder in response to the tool changing blowing condition. This control logic ensures that the blowing action is only started when the tool changing process occurs, that is, cleaning is performed at the node where the probe tool is transferred from the tool magazine to the spindle, so that the tool holder is cleaned by targeted airflow before being loaded into the spindle. In this way, the flushing device first reduces the sources of contamination in the tool magazine environment, the blowing device performs a final cleaning of the tool holder during tool changing, and the control unit ensures that the cleaning timing is synchronized with the tool changing action. The three work together to keep the tool holder clean when it is installed on the spindle, avoiding spindle taper hole fit deviation caused by tool holder deposits, thereby ensuring the spatial positioning accuracy of the probe body and probe, eliminating measurement errors caused by tool holder contamination, and ultimately improving the functional reliability of the probe, probe and tool when used in the machine tool.

[0008] In the feasible implementation of the first aspect, the tool changing air blowing condition includes: when the probe tool is the next tool to be loaded onto the spindle, the control unit is used to control the tool holder air blowing device to open after the tool magazine body rotates the target tool claw to the tool changing position, so as to blow gas to the tool holder of the probe tool; the control unit is also used to control the spindle to move to the tool changing position and perform the tool clamping operation after the tool holder air blowing device completes the air blowing.

[0009] In the feasible implementation of the first aspect, the tool change air blowing condition includes: when the probe tool is the current tool currently loaded on the spindle, the control unit is used to control the tool holder air blowing device to open after the spindle moves to the tool change position and performs tool release, so as to blow gas to the tool holder of the probe tool; the control unit is also used to control the tool magazine body to rotate to the tool cup position of the next tool after the tool holder air blowing device completes the air blowing.

[0010] In a feasible implementation of the first aspect, the flushing device includes a tool magazine flushing nozzle fixedly mounted above the tool magazine and a tool holder flushing nozzle fixedly mounted on the spindle; the spray direction of the tool magazine flushing nozzle is towards the upper part of the tool claw, and the spray direction of the tool holder flushing nozzle is towards the tapered part of the tool holder clamped on the spindle; the control unit is electrically connected to the tool magazine flushing nozzle and the tool holder flushing nozzle respectively; the control unit is used to acquire the position information of the target tool claw in the tool magazine, and when the target tool claw is within the range of one tool claw on each side directly below the tool magazine, the control unit prohibits the tool magazine flushing nozzle from opening; and / or, the control unit is used to acquire the tool change signal of the probe tool, and when the machine tool performs the tool change operation of the probe tool, the control unit prohibits the tool holder flushing nozzle from opening, and at the same time keeps the tool magazine flushing nozzle in a closed state.

[0011] In a feasible implementation of the first aspect, the control unit is used to acquire the residence time or surface humidity parameter of the probe tool in the current environment, and dynamically determine the blowing duration and / or blowing pressure of the tool holder blowing device based on the residence time or surface humidity parameter.

[0012] In one feasible implementation of the first aspect, a waterproof cover is also included; the waterproof cover is fixedly installed on the target cutting jaw, and is in the shape of a hollow semi-circular cup, covering the top of the probe body, to prevent cutting fluid from being sprayed directly onto the probe body.

[0013] In a feasible implementation of the first aspect, the control unit is used to control the tool holder blowing device to blow gas onto the inner wall of the waterproof cover in response to the tool change blowing condition, so as to blow the cutting fluid adhering to the inner wall of the waterproof cover away from the waterproof cover; wherein, the waterproof cover includes a fixed base and a semi-circular cover body, the fixed base is mounted on the target tool claw, one end of the semi-circular cover body is fixed to the fixed base, the other end of the semi-circular cover body extends above the probe tool of the probe head, and the concave surface of the semi-circular cover body faces the probe head body.

[0014] In the feasible implementation of the first aspect, the probe tool further includes a sheath that wraps around the outside of the probe body, with the probe protruding outside the sheath.

[0015] In a second aspect, this application provides a machine tool including a spindle and a tool magazine protection system of the machine tool as described in any of the first aspects; the spindle and the tool magazine body of the tool magazine protection system are disposed opposite to each other.

[0016] Thirdly, this application provides a machine tool magazine protection method, applied to the tool magazine protection system of a machine tool as described in any of the first aspects; comprising: in response to a tool changing air blowing condition, controlling a tool holder air blowing device to blow gas onto the tool holder of the probe tool to remove moisture and / or impurities adhering to the surface of the probe tool. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the tool magazine protection system for a machine tool provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the structure of the probe tool and waterproof cover in the tool magazine protection system of the machine tool provided in this application embodiment; Figure 3 This is a schematic diagram of the structure of the sheath in the tool magazine protection system of the machine tool provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the waterproof cover in the tool magazine protection system of the machine tool provided in this application embodiment; Figure 5 This is a schematic diagram of the structure of the tool holder air blowing device in the tool magazine protection system of the machine tool provided in this application embodiment; Figure 6 This is a schematic flowchart of the machine tool magazine protection method provided in the embodiments of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that when a component is referred to as being "set on" another component, it can be directly set on the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may be an intervening component.

[0021] Furthermore, it should be understood that all directional indications in the embodiments (such as up, down, left, right, center, etc.) are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indications will also change accordingly. Terms such as "first" and "second" are used to distinguish different structural components. These terms are only for the purpose of simplifying the description of this application and should not be construed as limiting this application.

[0022] CNC machine tools are typically equipped with automatic tool changers and tool magazines to store various tools for continuous machining of different processes. To improve machining accuracy and automation, machine tools can be configured with online measurement functions. This function relies on a probe to scan the tool, acquiring position and dimensional data by contacting the workpiece.

[0023] When machine tools are equipped with probe functionality, the probe tool must be stored in the tool magazine as an auxiliary tool, unlike machining tools which can be promptly removed from the machining area when not in operation. During automatic tool changing, the tool magazine and tool holder cleaning process is usually initiated simultaneously, at which time a large amount of cutting fluid is sprayed directly onto the surfaces of the tool magazine and tool holder for a rinsing effect. However, due to the limited sealing of the probe body and tool holder connection and internal electronic components, this spraying operation can easily cause cutting fluid to seep into the tool along the assembly gap between the tool holder and the probe body, and then invade the internal circuitry or triggering mechanism of the probe body, causing component corrosion, poor contact, or abnormal signals, ultimately leading to probe malfunction. As a key execution component of the in-situ measurement system, such a failure of the probe not only leads to measurement failure but also directly affects the machining accuracy and automated operation stability of the machine tool, increasing equipment downtime and maintenance costs.

[0024] To address the above issues, this application provides a tool magazine protection system and method for machine tools. Through the coordinated action of a flushing device, a tool holder blowing device, and a control unit, the tool holder is kept clean when installed on the spindle, avoiding spindle taper hole misalignment caused by adhering substances on the tool holder. This ensures the spatial positioning accuracy of the probe body and probe, eliminates measurement errors caused by tool holder contamination, and ultimately improves the functional reliability of the probe tool when used in the machine tool.

[0025] The following is a detailed explanation with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of a tool magazine protection system for a machine tool provided in an embodiment of this application. Figure 1 As shown, in some embodiments, the tool magazine protection system of the machine tool includes a tool magazine body 110, a probe tool 120, a flushing device 130, a tool holder blowing device 140, and a control unit 150.

[0027] The tool magazine body 110 is provided with multiple cutting claws. In some embodiments, the multiple cutting claws are spaced apart along the circumferential or linear direction of the tool magazine body 110. Each cutting claw has a clamping structure adapted to the tapered surface of the tool holder for clamping different types of tools.

[0028] The probe tool 120 is used to perform in-situ measurement tasks during machining. For example... Figure 2 As shown, in some embodiments, the probe tool 120 is mounted on a target gripper 111. The target gripper 111 is one of a plurality of grippers. The target gripper 111 is selected to a clamping position that matches the shank 121 of the probe tool 120 to ensure that the tool remains stable during storage and transport within the tool magazine body.

[0029] like Figure 2As shown, in some embodiments, the probe tool 120 includes a shank 121, a probe body 122, and a probe 123. The probe body 122 is fixed to the front end of the shank 121, and the probe 123 is mounted on the front end of the probe body 122. The shank 121 serves as a connection interface, forming a detachable mating connection with the machine tool spindle or tool jaws. Its conical structure can transmit clamping force and ensure installation alignment. The probe body 122 internally encapsulates sensing elements and signal processing circuitry, used to generate a trigger signal when the probe 123 contacts the workpiece. The probe 123, as the execution end that directly contacts the workpiece, has a ball-shaped or needle-like structure used to touch the workpiece surface during measurement to obtain position data. The above three layers are sequentially fixedly connected, making the probe tool 120 a rigid measurement chain from the spindle connection end to the measurement execution end. The installation accuracy of the shank 121, the sensing sensitivity of the probe body 122, and the geometry of the probe 123 jointly determine the measurement accuracy and reliability of the tool. When the probe tool 120 is loaded onto the target claw 111, the shank 121 and the target claw 111 form a clamping engagement, and the probe body 122 and the probe 123 are suspended in the preset space of the tool magazine, waiting for the tool change command.

[0030] The flushing device 130 is used to spray cutting fluid at a preset position on the tool magazine body 110. The cutting fluid removes chips and residual cutting fluid adhering to this preset position through its flushing action. In some embodiments, the preset position at least covers the area where the target claw 111 is located and the conical surface of the shank 121 of the probe tool 120, so that the cutting fluid can directly act on the claw clamping interface and the shank conical surface. It is understood that this application does not limit the specific coordinates or range of the preset position; it only needs to ensure that the spraying area of ​​the flushing device 130 can cover the mating part of the shank 121 of the probe tool 120 and the target claw 111, thereby achieving flushing and cleaning of the claw clamping area and the shank surface.

[0031] It is understandable that "preset position" refers to a specific spatial area or part on the tool magazine body that the spray direction of the flushing device points to. This position is predetermined during the system design phase based on cleaning requirements and is fixed during the installation of the flushing device by adjusting the nozzle angle, position, or spray direction. This preset position is not a fixed structure on the tool magazine body, but rather a spatial location concept.

[0032] While the probe tool 120 is loaded onto the target jaw 111, the conical surface of its shank 121 is in long-term contact with the clamping surface of the target jaw 111. If there are chips or hard particles at this contact interface, they may cause scratches or micron-level indentation deformation on the conical surface of the shank under conditions such as tool magazine rotation and tool change vibration, thereby affecting the fitting accuracy between the shank and the spindle taper hole. Therefore, the flushing device 130 can periodically or as needed clean the shank and jaw of the probe tool 120 when it is in the tool magazine standby state by spraying cutting fluid at a preset position. This proactively reduces the risk of shank contamination from the tool magazine side and provides a preliminary guarantee for the high-precision fitting between the shank and the spindle after subsequent tool changes.

[0033] The tool holder air blowing device 140 serves as a pneumatic cleaning module for the tool magazine protection system. During tool changing operations, the tool holder air blowing device 140 can blow gas onto the tool holder 121 of the probe tool 120, removing residual cutting fluid and particles from the tapered surface of the tool holder 121 through the impact and shearing action of the high-pressure airflow.

[0034] like Figure 3 As shown, in some embodiments, the tool holder air blowing device 140 is disposed on the spindle 200 of the machine tool. Exemplarily, the tool holder air blowing device 140 is disposed at the center position of the spindle 200 of the machine tool. It is understood that this application does not limit the specific installation angle and blowing direction of the tool holder air blowing device 140, as long as it ensures that the gas blown out can cover the conical surface area of ​​the tool holder 121 to achieve cleaning.

[0035] In some embodiments, the tool holder air blowing device may also be located at the tool changing position on the tool magazine body.

[0036] In some embodiments, the preset blowing time of the tool holder blowing device 140 can be set to 5 seconds. This preset blowing time refers to the duration of a single instance during tool change blowing operations, when the tool holder blowing device 140 continuously blows gas onto the tool holder 121. A blowing duration of 5 seconds is sufficient to create a continuous air curtain flushing effect on the conical surface of the tool holder 121 with high-pressure gas, stripping and blowing away residual cutting fluid and small chips from the conical surface, while avoiding significantly extending the tool change cycle time due to excessive blowing time, thus affecting the machining efficiency of the machine tool. It should be noted that this application does not limit the specific value of the preset blowing time; 5 seconds is merely an exemplary time configuration. In actual applications, it can be adjusted according to the air source pressure, nozzle diameter, tool holder specifications, and on-site cleaning requirements, as long as it is sufficient to clean the conical surface of the tool holder 121 to the level required for clamping accuracy.

[0037] Control unit 150 is electrically connected to tool holder blowing device 140. Control unit 150 is used to control tool holder blowing device 140 to blow gas to the tool holder 121 of probe tool 120 in response to tool change blowing conditions. In some embodiments, control unit 150 is used to control tool holder blowing device 140 to operate in pulse blowing mode, wherein the pulse blowing mode is a cyclical operation of alternating blowing and stopping blowing at preset time intervals.

[0038] In some embodiments, the tool change air blowing condition includes, when the probe tool 120 is the next tool to be loaded onto the spindle, the control unit 150 controls the tool holder air blowing device 140 to activate after the tool magazine body 110 rotates the target tool holder 111 to the tool change position, so as to blow air onto the tool holder 121 of the probe tool 120. The control unit 150 is also used to control the spindle to move to the tool change position and perform the tool clamping operation after the tool holder air blowing device 140 has completed air blowing.

[0039] For example, the tool changing process of the probe tool 120 as the tool to be loaded under the tool changing air blowing condition includes: a tool changing command is issued, at which time the next tool to be loaded onto the spindle is the probe tool 120; the spindle returns the current tool normally to the corresponding tool jaw of the tool magazine body 110, and the spindle retracts to the safe position and locks all axes; the tool magazine body 110 rotates to position the target tool jaw 111 loaded with the probe tool 120 to the tool changing position; the control unit 150 controls the tool holder air blowing device 140 to turn on, blowing gas into the tool holder 121 of the probe tool 120 on the target tool jaw 111 for 5 seconds; after the air blowing ends, the spindle moves to the second tool changing point position, performs a tool clamping operation, and removes the probe tool 120 from the target tool jaw 111; the spindle moves to the first tool changing point position, and the loading of the probe tool 120 is completed.

[0040] In some embodiments, the tool change air blowing condition includes, when the probe tool 120 is the currently loaded tool on the spindle, the control unit 150 controls the tool holder air blowing device 140 to activate after the spindle moves to the tool change position and performs tool release, so as to blow gas into the tool holder 121 of the probe tool 120. The control unit 150 is also used to control the tool magazine body 110 to rotate to the tool cup position of the next tool after the tool holder air blowing device 140 completes air blowing. The spindle moves to the tool change position and controls the spindle to perform a tool clamping operation.

[0041] For example, the tool changing process of the probe tool 120 as the tool to be loaded under the tool changing and air blowing condition includes: a tool changing command is issued, at which time the current tool loaded on the spindle is the probe tool 120; the spindle moves to the first tool changing point position; the spindle moves to the second tool changing point position and the spindle performs a tool release operation, so that the probe tool 120 is disengaged from the spindle; the spindle retracts to the third tool changing point position, i.e., the safe position; the control unit 150 controls the tool holder air blowing device 140 to turn on, blowing gas into the tool holder 121 of the probe tool 120 for 5 seconds; after the air blowing ends, the tool magazine body 110 rotates to the tool cup position of the next tool; the spindle moves to the second tool changing point position; the spindle performs a tool clamping operation; the spindle moves to the first tool changing point position, and the next non-probe tool is loaded.

[0042] In some embodiments, the flushing device 130 includes a tool magazine flushing nozzle fixedly disposed above the tool magazine and a tool holder flushing nozzle 131 fixedly disposed on the spindle. The spray direction of the tool magazine flushing nozzle is towards the upper part of the tool pawl, and the spray direction of the tool holder flushing nozzle 131 is towards the tapered portion of the tool holder 121 clamped on the spindle. The control unit 150 is electrically connected to the tool magazine flushing nozzle and the tool holder flushing nozzle 131, respectively. The control unit 150 is used to acquire the position information of the target tool pawl 111 in the tool magazine, and to prevent the tool magazine flushing nozzle from opening when the target tool pawl 111 is within the range of one tool pawl on each side directly below the tool magazine.

[0043] In some embodiments, the control unit 150 is used to acquire the tool change signal of the probe tool 120, and when the machine tool performs the tool change operation of the probe tool 120, it prevents the tool holder flushing nozzle 131 from opening, and at the same time keeps the tool magazine flushing nozzle in a closed state.

[0044] In some embodiments, the control unit 150 is used to acquire the residence time or surface humidity parameter of the probe tool 120 in the current environment, and dynamically determine the blowing duration and / or blowing pressure of the tool holder blowing device 140 based on the residence time or surface humidity parameter.

[0045] Combined Figure 2 and Figure 4 In some embodiments, a waterproof shield 160 is also included. In one implementation, the bottom edge of the waterproof shield 160 is provided with a guide slope or guide groove, which is used to guide the cutting fluid collected on the inner wall of the waterproof shield 160 to drip radially outward from the probe tool 120.

[0046] In some embodiments, a waterproof cover 160 is fixedly mounted on the target cutting claw 111. The waterproof cover 160 is a hollow semi-circular cup shape, covering the probe body 122, and is used to prevent cutting fluid from the top from being sprayed directly onto the probe body 122.

[0047] In other embodiments, the waterproof cover 160 may be fixedly disposed on the bottom of the target claw 111 or on the side wall of the target claw 111.

[0048] In some embodiments, the control unit 150 is configured to control the tool holder blowing device 140 to blow gas onto the inner wall of the waterproof cover 160 in response to a tool change blowing condition, so as to blow the cutting fluid adhering to the inner wall of the waterproof cover 160 away from the waterproof cover 160.

[0049] like Figure 5 As shown, in some embodiments, the probe cutter 120 further includes a sheath 170, which covers the outside of the probe body 122, with the probe 123 protruding from the outside of the sheath 170. In one implementation, the sheath 170 is made of transparent silicone and is elastic. In another implementation, the wall thickness of the sheath 170 does not exceed 0.3 mm, and its dimensions are adapted to the outer contour of the probe body 122 to fit tightly against the surface of the probe body 122.

[0050] For example, the sheath 170 has a first opening and a second opening at each end. The first opening is located at the front end of the sheath 170 and its diameter is adapted to the outer diameter of the probe 123, allowing the probe 123 to pass through and extend to the outside of the sheath 170. The second opening is located at the rear end of the sheath 170 and its diameter is adapted to the outer diameter of the front end of the tool holder 121, allowing the front end of the tool holder 121 to pass through to achieve the connection and engagement between the sheath 170 and the tool holder 121. During installation, the sheath 170 is slipped onto one side of the probe 123 and gradually stretched towards the rear end along the axial direction of the probe 123 and the probe body 122, and then fitted onto the outside of the probe body 122. The elastic contraction force of the sheath 170 makes the inner wall of the sheath 170 fit tightly against the outer surface of the probe body 122, thereby achieving a full-coverage sealing protection of the probe body 122 by the sheath 170. Therefore, the sheath 170 can isolate the probe body 122 from the external environment without affecting the normal measurement function of the probe 123, preventing contaminants such as cutting fluid, oil mist and chips from contacting the surface and internal structure of the probe body 122. In particular, it can prevent cutting fluid from seeping into the probe body 122 along the assembly gap between the probe body 122 and the tool holder 121, thereby improving the waterproof and anti-fouling capabilities of the probe tool 120 in the environment of tool magazine flushing and cutting fluid spraying, and further ensuring the reliability of the probe function.

[0051] This application also provides a machine tool, which includes a spindle and a tool magazine protection system for the machine tool provided in the above embodiments. The spindle and the tool magazine body of the tool magazine protection system are disposed opposite to each other.

[0052] This application also provides a machine tool magazine protection method, which is applied to the machine tool magazine protection system provided in the above embodiments.

[0053] Figure 6 This is a schematic flowchart of the machine tool magazine protection method provided in an embodiment of this application. Figure 6 As shown, in some embodiments, the machine tool magazine protection method includes the following steps: S101, in response to the tool change air blowing condition, controls the tool holder air blowing device to blow gas to the tool holder of the probe tool to remove water vapor or impurities adhering to the surface of the probe tool.

[0054] In some embodiments, the tool change air blowing condition includes: when the probe tool is the next tool to be loaded onto the spindle, the control unit is used to control the tool holder air blowing device to turn on after the tool magazine body rotates the target tool pawl to the tool change position, so as to blow gas onto the tool holder of the probe tool; the control unit is also used to control the spindle to move to the tool change position and perform the tool clamping operation after the tool holder air blowing device has completed blowing.

[0055] In some embodiments, the tool change air blowing condition includes: when the probe tool is the current tool currently loaded on the spindle, the control unit is used to control the tool holder air blowing device to turn on after the spindle moves to the tool change position and performs tool release, so as to blow gas to the tool holder of the probe tool; the control unit is also used to control the tool magazine body to rotate the target tool claw to the tool change position after the tool holder air blowing device completes air blowing, and control the spindle to perform tool release operation.

[0056] In some embodiments, the machine tool magazine protection method further includes the following steps: acquiring the position information of the target tool claw in the tool magazine, and prohibiting the tool magazine flushing nozzle from opening when the target tool claw is within the range of one tool claw on each side directly below the tool magazine; and / or acquiring the tool change signal of the probe tool, and prohibiting the tool holder flushing nozzle from opening when the machine tool performs the tool change operation of the probe tool, while simultaneously keeping the tool magazine flushing nozzle in a closed state.

[0057] In some embodiments, the machine tool magazine protection method further includes the following steps: obtaining the dwell time or surface humidity parameter of the probe tool in the current environment, and dynamically determining the blowing duration and / or blowing pressure of the tool holder blowing device based on the dwell time or surface humidity parameter.

[0058] In some embodiments, the machine tool magazine protection method further includes the following steps: in response to a tool change air blowing condition, controlling the tool holder air blowing device to blow gas onto the inner wall of the waterproof cover to blow away the cutting fluid adhering to the inner wall of the waterproof cover.

[0059] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0060] Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tool magazine protection system for a machine tool, characterized in that, include: The tool magazine body (110) is equipped with multiple cutting claws; A probe cutter (120) is mounted on a target claw (111). The probe cutter (120) includes a handle (121), a probe body (122), and a probe (123). The probe body (122) is fixed to the front end of the handle (121), and the probe (123) is mounted on the front end of the probe body (122). The target claw (111) is one of the plurality of claws. A flushing device (130) is used to spray cutting fluid into a preset position of the tool magazine body (110); The tool holder air blowing device (140) is installed on the spindle of the machine tool or at the tool changing position of the tool magazine body (110); The control unit (150) is electrically connected to the tool holder blowing device (140); the control unit (150) is used to control the tool holder blowing device (140) to blow gas to the tool holder (121) of the probe tool (120) in response to the tool changing blowing condition.

2. The tool magazine protection system for machine tools according to claim 1, characterized in that, The tool change air blowing condition includes: When the probe tool (120) is the next tool to be loaded onto the spindle, the control unit (150) is used to control the tool holder blowing device (140) to turn on after the tool magazine body (110) rotates the target tool claw (111) to the tool changing position, so as to blow gas into the tool holder (121) of the probe tool (120); The control unit (150) is also used to control the spindle to move to the tool change position and perform the tool clamping operation after the tool holder blowing device (140) has completed blowing.

3. The tool magazine protection system for machine tools according to claim 1, characterized in that, The tool change air blowing condition includes: When the probe tool (120) is the current tool currently loaded on the spindle, the control unit (150) is used to control the tool holder blowing device (140) to turn on after the spindle moves to the tool change position and performs tool release, so as to blow gas to the tool holder (121) of the probe tool (120); The control unit (150) is also used to control the tool magazine body (110) to rotate to the blade cup position of the next tool after the tool holder blowing device (140) has completed blowing.

4. The tool magazine protection system for a machine tool according to any one of claims 1-3, characterized in that, The flushing device (130) includes a tool magazine flushing nozzle fixedly installed above the tool magazine and a tool holder flushing nozzle fixedly installed on the spindle; The spray direction of the tool magazine flushing nozzle is towards the top of the tool claw, and the spray direction of the tool holder flushing nozzle is towards the conical part of the tool holder (121) clamped on the spindle; The control unit (150) is electrically connected to the tool magazine flushing nozzle and the tool holder flushing nozzle, respectively; The control unit (150) is used to obtain the position information of the target cutting claw (111) in the tool magazine, and when the target cutting claw (111) is within the range of one cutting claw on each side directly below the tool magazine, the tool magazine flushing nozzle is prohibited from being turned on. And / or, The control unit (150) is used to acquire the tool change signal of the probe tool (120), and when the machine tool performs the tool change operation of the probe tool (120), it prohibits the tool holder flushing nozzle from opening, and at the same time keeps the tool magazine flushing nozzle in the closed state.

5. The tool magazine protection system for a machine tool according to any one of claims 1-3, characterized in that, The control unit (150) is used to acquire the residence time or surface humidity parameter of the probe tool (120) in the current environment, and dynamically determine the blowing duration and / or blowing pressure of the tool holder blowing device (140) based on the residence time or the surface humidity parameter.

6. The tool magazine protection system for a machine tool according to any one of claims 1-3, characterized in that, Also includes: A waterproof cover (160) is fixedly installed on the target claw (111). The waterproof cover (160) is a hollow semi-circular cup shape, which covers the probe body (122) to prevent cutting fluid from spraying directly onto the probe body (122).

7. The tool magazine protection system for machine tools according to claim 6, characterized in that, The control unit (150) is used to control the tool holder blowing device (140) to blow gas to the inner wall of the waterproof cover (160) in response to the tool changing blowing condition, so as to blow the cutting fluid adhering to the inner wall of the waterproof cover (160) away from the waterproof cover (160). The waterproof cover (160) includes a fixing base (161) and a semi-circular cover (162). The fixing base (161) is installed on the target claw (111). One end of the semi-circular cover (162) is fixed to the fixing base (161), and the other end of the semi-circular cover (162) extends above the probe cutter (120). The concave surface of the semi-circular cover (162) faces the probe body (122).

8. The tool magazine protection system for a machine tool according to any one of claims 1-3, characterized in that, The probe cutter (120) also includes a sheath (170), which is wrapped around the outside of the probe body (122), and the probe (123) protrudes from the outside of the sheath (170).

9. A machine tool, characterized in that, Includes a spindle, and a tool magazine protection system for a machine tool as described in any one of claims 1-8; The spindle and the tool magazine body (110) of the tool magazine protection system are arranged opposite to each other.

10. A method for protecting a machine tool magazine, characterized in that, A tool magazine protection system for a machine tool as described in any one of claims 1-8; comprising: In response to the tool change air blowing condition, the tool holder air blowing device is controlled to blow gas to the tool holder of the probe tool.

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