Linear cutting equipment

Abstract

The utility model provides linear cutting equipment which comprises a rack, a grooved wheel assembly arranged on the rack, a monitoring unit and a cleaning unit, and the grooved wheel assembly is used for arranging a cutting line to cut a workpiece; the monitoring unit comprises a sensor, the sensor is provided with a signal receiving and transmitting window which is arranged towards the grooved wheel assembly, and the signal receiving and transmitting window is covered with a protective plate through which signals can pass; the cleaning unit is provided with a water outlet, and the cleaning unit is configured in the mode that the water outlet can move to face the protection plate.

Description

Technical Field

[0001] This application relates to the field of wire EDM technology, and more specifically, to a wire EDM device. Background Technology

[0002] During the operation of wire cutting equipment, a large amount of splashed coolant exists in the cutting chamber, carrying powder generated during the cutting process. When sensors are used to monitor the wire mesh during the cutting process, the coolant and powder easily adhere to the sensors, thus affecting the accuracy of the sensor's detection results. Utility Model Content

[0003] The purpose of this application is to provide a wire cutting device that can clean sensors, thereby improving the accuracy of sensor detection results.

[0004] The embodiments of this application are implemented as follows:

[0005] In a first aspect, embodiments of this application provide a wire cutting device, including a frame, a grooved wheel assembly, a monitoring unit, and a cleaning unit disposed on the frame. The grooved wheel assembly is used to set a cutting wire to cut a workpiece. The monitoring unit includes a sensor having a signal receiving and transmitting window disposed toward the grooved wheel assembly, the signal receiving and transmitting window being covered by a protective plate that allows signals to pass through. The cleaning unit has a water outlet, and the cleaning unit is configured such that the water outlet is movable toward the protective plate.

[0006] In the above technical solution, the sensor's signal transmission and reception window is positioned facing the Geneva wheel assembly. Therefore, the sensor can send signals to the Geneva wheel assembly. The signal, reflected by the cutting line, can be received by the sensor junction through the signal transmission and reception window. By analyzing the received signal, the sensor can analyze the state of the cutting line and determine whether there are any abnormalities in the cutting line mesh, thus achieving mesh monitoring. By covering the transmission and reception window with a protective plate, splashing coolant can be effectively blocked from the outside of the sensor, preventing coolant from entering the sensor and causing damage. Furthermore, the protective plate allows the signal to pass through, thus reducing the impact of the protective plate on the sensor's signal transmission and reception process. By incorporating a cleaning unit, and ensuring that the outlet of the cleaning unit can move towards the protective plate, the cleaning unit can supply water to the protective plate to rinse away the coolant carrying powder adhering to the surface of the protective plate, thereby improving the accuracy of the sensor's detection results.

[0007] In some alternative implementations, the monitoring unit further includes a first rail disposed on the rack and a first slider slidably connected to the first rail, the sensor being disposed on the first slider.

[0008] In the above technical solution, the sensor is set on the first slider, and the first slider is slidably set on the first track. Therefore, on the one hand, it is convenient to adjust the position of the sensor in the extension direction of the first track, and on the other hand, it is convenient for the sensor to detect the cutting line at different positions.

[0009] In some alternative implementations, the grooved wheel assembly includes a plurality of grooved wheels, the first track extends parallel to the axis of the grooved wheels, a plurality of first sliders are disposed along the first track, each of the first sliders is provided with a sensor, and the first track is also connected to a locking device to restrict the movement of the first sliders relative to the first track.

[0010] In the above technical solution, the first track extends parallel to the axis of the Geneva wheel; therefore, the extension direction of the first guide rail is also the distribution direction of the cutting lines on the Geneva wheel. Multiple first sliders are arranged along the first track, and each first slider is equipped with a sensor. That is, multiple sensors are arranged along the first track, enabling each sensor to detect a portion of the cutting lines along the axial direction of the Geneva wheel, and the set of detection objects for all sensors includes all cutting lines on the Geneva wheel. In this embodiment, real-time, uninterrupted detection and monitoring of the cutting lines can be achieved. A locking device can fix the sensors to the first track, thereby reducing detection errors caused by sensor position changes.

[0011] In some alternative implementations, the locking device is a positioning block that is slidably connected to the first track and optionally fixedly connected to the first track. One of the positioning blocks is provided on each side of the first slider to restrict the first slider from sliding along the first track.

[0012] In the above technical solution, the first slider is fixedly connected to the frame by the fixing blocks on both sides, thereby restricting the first slider between the two fixing blocks; the first slider is not directly fixedly connected to the frame, and the position of the first slider is finely adjusted by setting a shim between the first slider and the fixing block, thereby realizing the fine adjustment of the position of the sensor in the extension direction of the first track.

[0013] In some alternative implementations, a second track parallel to the first track is also included, the cleaning unit being slidably disposed on the second track and connected to a drive device, the cleaning unit being configured to move along the second track from a position of the outlet toward one of the guard plates to a position of the outlet toward the other guard plate under the action of the drive device.

[0014] In the above technical solution, multiple sensors are arranged along the first track. Since the second track is parallel to the first track, and the cleaning unit arranged on the second track can move from the position of the water outlet toward one guard plate to the position of the guard plate under the action of the driving device, the cleaning unit can move to multiple positions and clean the sensors at those positions.

[0015] In some alternative implementations, each of the first sliders is also connected to one of the cleaning units.

[0016] In the above technical solution, each first slider is connected to a cleaning unit, that is, the cleaning unit is set one-to-one with the sensor, which can realize timely cleaning of each sensor to improve the accuracy of the sensor detection results.

[0017] In some alternative implementations, the cleaning unit includes a nozzle and a lifting assembly connected to the nozzle, the lifting assembly being vertically arranged, and the water outlet being located at the nozzle; the cleaning unit is configured such that the lifting assembly can move the nozzle downward so that the water outlet faces the guard plate.

[0018] In the above technical solution, the lifting component extends downward so that the water outlet faces the guard plate. Then the sensor is cleaned. When the sensor does not need to be cleaned, the nozzle can be placed in a higher position, thereby reducing the obstruction of the signal path of the sensor and facilitating the arrangement of the sensor and the cleaning unit.

[0019] In some alternative implementations, the lifting assembly is a linear motor, and the nozzle is connected to the moving part of the linear motor.

[0020] In the above technical solution, the moving part of the linear motor can move in a straight line. By setting the linear motor vertically and connecting the nozzle to the moving part of the linear motor, the nozzle can move downward.

[0021] In some alternative embodiments, the grooved wheel assembly includes a grooved wheel for setting the cutting line, and a plurality of the sensors are arranged in a direction parallel to the axial direction of the grooved wheel. The frame is also provided with a drive device and a second track parallel to the axial direction of the grooved wheel, and the cleaning unit is slidably disposed on the second track; the drive device is connected to the cleaning unit, and the cleaning unit is configured to move along the second track under the action of the drive device from a position where the water outlet faces one of the guard plates to a position where the water outlet faces another guard plate.

[0022] In the above technical solution, multiple sensors are arranged along the axis parallel to the grooved wheel. Since the second track is parallel to the axis of the grooved wheel, and the cleaning unit arranged on the second track can move from the position of the water outlet toward one guard plate to the position of the guard plate under the action of the driving device, the cleaning unit can move to multiple positions and clean the sensors at those positions.

[0023] In some alternative implementations, the protective plate is a glass structure, and the sensor is a radar sensor, a laser sensor, or a vision sensor.

[0024] In the above technical solutions, using radar sensors, laser sensors, or vision sensors can accurately collect data from the cutting line; the use of a glass protective plate has little impact on the signals transmitted and received by the sensor, which can make the sensor's detection results highly accurate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the wire cutting equipment provided in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram illustrating the installation of the monitoring unit and the cleaning unit provided in an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the monitoring unit provided in an embodiment of this application.

[0029] Icons: 100-Groove assembly; 110-Groove; 200-Cutting line; 300-Monitoring unit; 310-Sensor; 311-Guard plate; 320-First track; 330-First slider; 340-Locking device; 400-Cleaning unit; 410-Nozzle; 420-Lifting assembly; 430-Second slider; 500-Second track. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In wire EDM equipment, there is a grooved wheel assembly for setting the cutting lines. The grooved wheel assembly includes multiple grooved wheels, the cutting lines are distributed along the axial direction of the grooved wheels, and the workpiece is cut into multiple slices distributed along the axial direction of the grooved wheels. The collection of cutting lines distributed along the axial direction of the grooved wheels forms a cutting wire mesh.

[0037] This application provides a wire cutting device, such as... Figure 1As shown, the system includes a frame, a Geneva wheel assembly 100 mounted on the frame, a monitoring unit 300, and a cleaning unit 400. The Geneva wheel assembly 100 is used to set the cutting line 200 for cutting the workpiece. The monitoring unit 300 monitors the status of the cutting line 200 to determine if any abnormalities such as skipped lines, parallel lines, or broken lines have occurred or are likely to occur. The cleaning unit 400 cleans the coolant adhering to the monitoring unit 300 and the powder generated during workpiece cutting.

[0038] like Figure 2 and Figure 3 As shown, the monitoring unit 300 includes a sensor 310, which has a signal receiving and transmitting window facing the wheel assembly 100. The signal receiving and transmitting window is covered by a protective plate 311 through which signals can pass. The cleaning unit 400 has a water outlet, which is configured to move towards the protective plate 311. It is easy to understand that the protective plate 311 prevents coolant from entering the sensor 310 through the signal receiving and transmitting window, thus avoiding coolant entering the sensor 310 and causing malfunction. The protective plate 311 allows signals to pass through, reducing the influence of the protective plate 311 on the signal reception and transmission processes. The movement of the water outlet of the cleaning unit 400 towards the protective plate 311 can clean away coolant and dust generated during the cutting process, maintaining the cleanliness of the protective plate 311 and thus improving the accuracy of the sensor 310's detection results.

[0039] Furthermore, the sensor 310 includes a housing, a signal receiving and transmitting window being an opening in the housing, and a signal receiving end and a signal transmitting end being provided inside the housing for receiving and transmitting signals. The housing serves to protect the signal receiving end and the signal transmitting end, and the signal enters and exits the housing through the signal receiving and transmitting window.

[0040] In some embodiments, the monitoring unit 300 further includes a first track 320 disposed on the frame and a first slider 330 slidably connected to the first track 320, with the sensor 310 disposed on the first slider 330. That is, the sensor 310 is slidably connected to the first track 320 via the first slider 330, and the position of the sensor 310 in the device can be changed. For example, in some embodiments, as the sensor 310 moves along the first track 320, the sensor 310 gradually approaches or moves away from the Geneva assembly 100. In this embodiment, the distance between the sensor 310 and the Geneva assembly 100 can be adjusted to facilitate the acquisition of status data of the cutting line 200.

[0041] In other embodiments, as the sensor 310 moves along the first track 320, the distance between the sensor 310 and the Geneva wheel assembly 100 remains constant, while its position along the axial direction of the Geneva wheel 110 changes to collect state data of the cutting lines 200 at different positions. For example, the first track 320 extends parallel to the axial direction of the Geneva wheel 110 in the Geneva wheel assembly 100. During the movement of the sensor 310 along the first track 320, it can collect state data of the cutting lines 200 located at different positions on the Geneva wheel assembly 100. Therefore, in this embodiment, a single sensor 310 can be used to monitor the cutting line mesh; furthermore, as... Figure 1 As shown, a monitoring unit 300 can be set on each side of the Geneva assembly 100 to monitor the cutting wire mesh during the forward and reverse rotation of the Geneva 110.

[0042] Furthermore, in some embodiments, the first track 320 extends parallel to the axial direction of the Geneva 110, and as shown... Figure 2 As shown, the first track 320 is provided with multiple first sliders 330, and each first slider 330 is provided with a sensor 310. In this embodiment, data can be collected from the cutting lines 200 at different positions along the axial direction of the grooved wheel 110 using each sensor 310, and the set of data collected by all sensors 310 can include the cutting line mesh, thereby enabling monitoring of the cutting line mesh. In this embodiment, multiple sensors 310 arranged along the first track 320 can collect data from the cutting lines 200 in real time, thereby enabling real-time monitoring of the cutting line mesh.

[0043] Furthermore, a locking device 340 can be provided on the first track 320 to restrict the movement of the first slider 330 relative to the first track 320. By setting the locking device 340 to restrict the movement of the first slider 330, the position of the sensor 310 can be limited. Each sensor 310 collects data on the cutting line 200 of the fixed area along the axial direction of the grooved wheel 110, which can effectively improve the problem of sensor 310 position changes caused by equipment vibration and other reasons, and thus avoid the problem of missing some positions of the cutting line 200 during the data acquisition process.

[0044] In some embodiments, the locking device 340 is a positioning block slidably connected to the first track 320, and optionally fixedly connected to the first track 320. It is easy to understand that the positioning block may or may not be fixedly connected to the first track 320; when the positioning block is fixedly connected to the first track 320, its position on the first track 320 is fixed and cannot slide; when the positioning block is not fixedly connected to the first track 320, the positioning block can slide on the first track 320. Further, as... Figure 3As shown, a positioning block is provided on each side of the first slider 330 to restrict the first slider 330 from sliding along the first track 320.

[0045] In some embodiments, the connection between the positioning block and the first track 320 is a threaded connection. Multiple threaded holes are provided on the first track 320 along its extension direction. By connecting the positioning block to the threaded holes at different positions using threaded fasteners, the positioning block can be fixed in different positions. Since the first slider 330 is restricted in its movement by being sandwiched between two positioning blocks, by reasonably setting the spacing of the threaded holes in the extension direction of the first track 320, the dimensions of the positioning blocks, and the first slider 330 in the extension direction of the first track 320, a certain gap can be maintained between the first slider 330 and the positioning blocks on both sides after the positioning blocks on both sides of the first slider 330 are fixedly connected to the first track 320. This gap allows the first slider 330 to move a certain distance along the extension direction of the first track 320. By placing shims within this gap, the position of the first slider 330 can be finely adjusted, thereby achieving more precise adjustment of the position of the sensor 310.

[0046] In some embodiments where multiple sensors 310 are arranged along the first track 320, such as Figure 2 As shown, the frame is provided with a second track 500 parallel to the first track 320, and the cleaning unit 400 is slidably disposed on the second track 500. The cleaning unit 400 is also connected to a drive device, so that the cleaning unit 400 can move along the second track 500 from the position of the water outlet toward the guard plate 311 of one sensor 310 to the position of the water outlet toward the guard plate 311 of another sensor 310 under the action of the drive device, so as to clean the guard plates 311 of the sensors 310 at different positions. In some embodiments, a screw and nut mechanism can be used as the drive device to drive the cleaning unit 400 to move along the second track 500. The screw and nut mechanism can control the movement distance of the cleaning unit 400 more accurately. After the sensor 310 is installed and adjusted, the position parameters of the sensor 310 can be input into the control system. The control system can control the drive device to move the cleaning unit 400 to a position where the sensor 310 can be cleaned according to the position parameters of the sensor 310 to be cleaned. When the sensor 310 does not require cleaning, the cleaning unit 400 can be moved to a position that will not obstruct the signal receiving and transmitting window of the sensor 310.

[0047] In an embodiment where multiple sensors 310 are arranged along the first track 320, a cleaning unit 400 may also be provided for each sensor 310. For example... Figure 1As shown, in some embodiments, each first slider 330 is also connected to a cleaning unit 400, that is, the cleaning unit 400 is set in a one-to-one correspondence with the sensor 310, which can realize timely cleaning of each sensor 310 to improve the accuracy of the detection results of the sensor 310.

[0048] Furthermore, in some embodiments, the cleaning unit 400 includes a nozzle 410 and a lifting assembly 420 connected to the nozzle 410. The water outlet of the cleaning unit 400 is located at the nozzle 410, and the lifting assembly 420 is vertically arranged. Therefore, the lifting assembly 420 can change the vertical position of the nozzle 410, causing the nozzle 410 to move downward, thereby making the water outlet face the protective plate 311. That is, when the sensor 310 needs to be cleaned, the lifting assembly 420 can be used to lower the nozzle 410 to a position where the water outlet faces the protective plate 311; after cleaning the sensor 310 is completed, the lifting assembly 420 raises the nozzle 410 to reduce the obstruction of the signal receiving window of the sensor 310 by the nozzle 410.

[0049] In other embodiments, the lifting assembly 420 may raise the nozzle 410 so that the water outlet faces the guard plate 311.

[0050] In some embodiments, the lifting assembly 420 may be a linear motor, which has a guide rail and a moving part along the guide rail; the vertical arrangement of the lifting device means that the guide rail is vertically arranged and the moving part moves in the vertical direction along the guide rail. In other embodiments, the lifting assembly 420 may also be a cylinder, hydraulic cylinder, or other components.

[0051] In the embodiment where the cleaning unit 400 is disposed on the second track 500 and moves to different positions of the sensor 310 under the action of the driving device to clean the sensor 310, and in the embodiment where each sensor 310 is correspondingly provided with a cleaning unit 400, the nozzle 410 in the cleaning unit 400 can be raised and lowered by a lifting component 420 so that the nozzle 410 does not block the signal receiving and transmitting window of the sensor 310 when cleaning of the sensor 310 is not required.

[0052] Furthermore, in the embodiment where the cleaning unit 400 is slidably disposed on the second track 500, a second slider 430 can be slidably disposed on the second track 500 for mounting the lifting assembly 420; in the embodiment where the cleaning unit 400 is connected to the first slider 330, the lifting assembly 420 can be directly mounted on the first slider 330. Furthermore, the first track 320 and the second track 500 can be mounted in the frame above the wheel assembly 100, and the first slider 330 and the second slider 430 are provided with dovetail grooves to achieve slidable connection with the first track 320 or the second track 500, and to facilitate the first slider 330 and the second slider 430 being respectively hung on the first track 320 and the second track 500.

[0053] In some embodiments of this application, the protective plate 311 is a glass structure, and the sensor 310 is a radar sensor; in other embodiments, the sensor 310 may also be a laser sensor or a vision sensor. Signals received or emitted by the radar sensor, laser sensor, and vision sensor can all pass normally through the glass protective plate 311. In other embodiments, other materials for the protective plate 311 and other types of sensors may also be used, as long as the signals received or emitted by the sensor 310 can pass through the protective plate 311 to collect data from the cutting line 200.

[0054] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. 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 wire cutting device, characterized in that, The device includes a frame, a Geneva wheel assembly, a monitoring unit, and a cleaning unit mounted on the frame. The Geneva wheel assembly is used to set a cutting line to cut a workpiece. The monitoring unit includes a sensor with a signal receiving and transmitting window facing the Geneva wheel assembly, and the signal receiving and transmitting window is covered by a protective plate that allows signals to pass through. The cleaning unit has a water outlet, and the cleaning unit is configured such that the water outlet is movable toward the protective plate.

2. The wire cutting equipment according to claim 1, characterized in that, The monitoring unit further includes a first track disposed on the frame and a first slider slidably connected to the first track, and the sensor is disposed on the first slider.

3. The wire cutting equipment according to claim 2, characterized in that, The grooved wheel assembly includes multiple grooved wheels, the first track extends parallel to the axis of the grooved wheels, multiple first sliders are arranged along the first track, each first slider is provided with a sensor, and the first track is also connected to a locking device to restrict the movement of the first sliders relative to the first track.

4. The wire cutting equipment according to claim 3, characterized in that, The locking device is a positioning block that is slidably connected to the first track and can be optionally fixedly connected to the first track. One of the positioning blocks is provided on each side of the first slider to restrict the first slider from sliding along the first track.

5. The wire cutting equipment according to claim 3, characterized in that, It also includes a second track parallel to the first track, the cleaning unit being slidably disposed on the second track and connected to a drive device, the cleaning unit being configured to move along the second track from a position toward one of the guard plates to a position toward the other guard plate under the action of the drive device.

6. The wire cutting equipment according to claim 3, characterized in that, Each of the first sliders is also connected to one of the cleaning units.

7. The wire cutting equipment according to any one of claims 1-6, characterized in that, The cleaning unit includes a nozzle and a lifting assembly connected to the nozzle. The lifting assembly is vertically arranged, and the water outlet is located at the nozzle. The cleaning unit is configured such that the lifting assembly can move the nozzle downward so that the water outlet faces the protective plate.

8. The wire cutting equipment according to claim 7, characterized in that, The lifting assembly is a linear motor, and the nozzle is connected to the moving part of the linear motor.

9. The wire cutting equipment according to claim 1, characterized in that, The grooved wheel assembly includes a grooved wheel for setting the cutting line, and a plurality of the sensors are arranged in a direction parallel to the axial direction of the grooved wheel; The frame is also provided with a drive device and a second track parallel to the axis of the grooved wheel, and the cleaning unit is slidably disposed on the second track; The drive device is connected to the cleaning unit, which is configured to move along the second track from a position toward one of the guard plates to a position toward the other guard plate under the action of the drive device.

10. The wire cutting equipment according to claim 1, characterized in that, The protective plate is a glass structure, and the sensor is a radar sensor, a laser sensor, or a vision sensor.

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