Injection device based on programming control and control method thereof

Abstract

The invention relates to a spraying device based on programming control and a control method thereof.The spraying device is arranged in numerical control equipment and comprises a spraying head, a rotating block, a rotating driver used for driving the spraying head to rotate and a mounting assembly used for adjusting the rotating plane position of the spraying head, the spraying head is arranged in the rotating block in a penetrating mode, and the rotating block is connected with a rotating shaft of the rotating driver; the rotating driver is arranged on the mounting assembly so as to be fixed on the numerical control equipment; wherein the rotary driver adjusts the spraying angle of the sprayer according to the cutter length of the cutter in the current working procedure. The spraying angle of the spraying head can be automatically adjusted so as to adapt to different cutter lengths, the device can be arranged in equipment, and the requirement for the operation space is low.

Description

Technical Field

[0001] The present invention relates to an injection device based on programming control and its control method, belonging to the field of mechanical equipment. Background Art

[0002] In machine tool machining, it is often necessary to spray the cutting tool and the workpiece to reduce the cutting temperature, reduce tool wear, and reduce the influence of chip dust, etc. on the machining accuracy. The common injection devices on the market at present mainly include a bamboo joint pipe injection device made of plastic material and a universal injection device made of metal material. When the injection device is in use, it usually needs to be manually adjusted to ensure that the coolant can be accurately sprayed.

[0003] However, in the actual machining process, the machining of a part often requires the use of multiple cutting tools, and the lengths of different cutting tools are different. When the machining equipment changes the cutting tool, due to the inconsistent lengths of the cutting tools, the coolant sprayed by the injection device may not be accurately sprayed onto the cutting edge. At this time, the operator needs to manually bend the injection device to adjust the spraying direction according to the actual situation. This process is not only cumbersome and time-consuming, but also requires a high level of operation for the operator. In addition, although there are some devices in the prior art that can achieve automatic adjustment of spraying through, such as a manipulator, etc., their overall structure is complex, the space requirement is high, and the price is high. Summary of the Invention

[0004] The present invention provides an injection device based on programming control and its control method, aiming to solve at least one of the technical problems existing in the prior art. For this purpose, the injection device based on programming control and its control method proposed by the present invention can automatically adjust the spraying angle of the nozzle to adapt to different cutting tool lengths, and can be built into the equipment with low requirements for the operation space.

[0005] On the one hand, the technical solution of the present invention relates to an injection device built into a numerical control device, including: a nozzle, a rotating block, a rotation driver for driving the nozzle to rotate, and a mounting component for adjusting the rotational plane position of the nozzle. The nozzle passes through the rotating block, and the rotating block is connected to the rotating shaft of the rotation driver; the rotation driver is arranged on the mounting component to be fixed on the numerical control device; wherein, the rotation driver adjusts the spraying angle of the nozzle according to the cutting tool length of the current process.

[0006] Further, the mounting component includes a housing, the housing is provided with a rotation hole, the rotation driver is arranged in the housing, and the rotating block is rotatably passed through the rotation hole to connect the rotation driver and the nozzle.

[0007] Further, the mounting assembly includes a first mounting block for fixedly connecting the numerical control device, and a second mounting block with an adjustable connection position to the first mounting block, and the second mounting block is connected to the housing.

[0008] Further, the mounting assembly further includes an adjusting member for adjusting the connection position between the first mounting block and the second mounting block. The first mounting block is provided with a first adjusting hole allowing the adjusting member to pass through and having an adjustable abutting position, and the second mounting block is provided with a second adjusting hole allowing the adjusting member to pass through.

[0009] Further, the mounting assembly further includes a connecting member for connecting the first mounting block and the second mounting block. The first mounting block is provided with a first connecting hole allowing the connecting member to pass through, and the second mounting block is provided with a second connecting hole allowing the connecting member to pass through.

[0010] Further, a cable connector for connecting the wires of the rotary drive is provided on the housing.

[0011] Further, the nozzle is provided with a nozzle and a pipe joint for connecting a liquid pipe. The pipe joint is provided at one end of the nozzle, and the nozzle passes through the rotary block.

[0012] On the other hand, the technical solution of the present invention relates to a control method of the spraying device, which is applied to the spraying device in the above embodiment; the method includes the following steps:

[0013] S100. Obtain the current machining process, and determine the current tool length according to the pre-input matching table of the process and the tool length;

[0014] S200. Obtain the pre-entered nozzle parameter database, and calculate the spraying angle or the spraying angle range of the nozzle according to the current tool length; wherein, the nozzle parameter database includes the horizontal distance a between the spindle axis and the axis of the rotary drive, the vertical distance b between the axis of the rotary drive and the spindle end face, and the vertical direction compensation value b';

[0015] S300. Rotate the nozzle by the rotary drive according to the obtained spraying angle or spraying angle range of the nozzle, and start the nozzle to perform spraying.

[0016] Further, when the nozzle performs spot spraying to cool the tool tip, the spraying angle θ of the nozzle is calculated as follows:

[0017]

[0018] In the formula, a represents the horizontal distance between the spindle axis and the axis of the rotary drive, b represents the vertical distance between the axis of the rotary drive and the spindle end face, and b' represents the vertical direction compensation value.

[0019] Further, when the nozzle sprays and sweeps the tool, the spraying angle range of the nozzle is calculated as follows:

[0020]

[0021] In the formula, (θ d , θ ， d ) represents the angle range of the nozzle spraying and sweeping the tool; a represents the horizontal distance between the spindle axis and the axis of the rotation driver, b represents the vertical distance between the axis of the rotation driver and the spindle end face, and b' represents the vertical direction compensation value; d represents the length of the tool edge that needs to be cleaned.

[0022] Further, when the nozzle sprays and sweeps the workpiece, the spraying angle of the nozzle is calculated as follows:

[0023]

[0024] In the formula, θ e represents the spraying angle value of the nozzle spraying and sweeping the workpiece, where (θ e ±e') is the angle range of the nozzle spraying and sweeping the workpiece, and e' is a preset value in the formula; a represents the horizontal distance between the spindle axis and the axis of the rotation driver, b represents the vertical distance between the axis of the rotation driver and the spindle end face, b' represents the vertical direction compensation value, and e represents the distance from the top surface of the workpiece to the lowest tip of the tool.

[0025] The beneficial effects of the present invention are as follows.

[0026] The spraying device and its control method according to the embodiments of the present invention can automatically adjust the spraying angle of the nozzle to adapt to different tool lengths. By using a rotation driver in cooperation with the nozzle, the requirement for the operating space is relatively low, and it can be built into the narrow processing space of small equipment (such as a carving and milling machine). Moreover, the cost is relatively low, and it can be installed and modified in existing numerical control equipment. The nozzle is arranged on the rotation driver. During processing, according to the position of the tool edge after replacement, the rotation driver drives the nozzle to rotate, automatically adjusting the spraying angle of the nozzle so that the liquid can be sprayed onto the processing position where the tool contacts the workpiece, and spot spraying or sweeping spraying can be flexibly performed according to actual needs. The nozzle is arranged on the mounting component, and by adjusting the relative positions of the first mounting block and the second mounting block, the rotational plane position of the nozzle is adjusted. By adjusting the spraying angle of the nozzle through the rotation driver, the processing position can be sprayed, the tool can be swept and cleaned, and the workpiece can be sprayed and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0028] Figure 1 It is a schematic structural diagram of an injection device installed on a numerical control device according to an embodiment of the present invention.

[0029] Figure 2 It is a schematic structural diagram of an injection device according to an embodiment of the present invention.

[0030] Figure 3 It is an exploded view of the structure of an injection device according to an embodiment of the present invention.

[0031] Figure 4 It is a schematic diagram of the injection angle adjustment of an injection device according to an embodiment of the present invention.

[0032] Figure 5 It is a schematic diagram of the rotation plane and injection angle adjustment of an injection device according to an embodiment of the present invention.

[0033] Figure 6 It is a flow chart of the injection angle adjustment of an injection device according to an embodiment of the present invention.

[0034] Figure 7 It is a schematic diagram of the nozzle parameters of an injection device according to an embodiment of the present invention.

[0035] Explanation of reference numerals:

[0036] 100, nozzle; 110, nozzle; 120, pipe joint; 200, rotating block; 300, rotating driver; 310, cable joint; 320, connecting block; 400, mounting assembly; 410, housing; 411, rotating hole; 420, first mounting block; 421, first adjustment hole; 422, first connection hole; 423, recess; 430, second mounting block; 431, second adjustment hole; 432, second connection hole; 433, perforation; 440, adjusting member; 450, connecting member; 500, numerical control device; 510, tool. Detailed implementation manners

[0037] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present invention in combination with the embodiments and the drawings, so as to fully understand the purpose, solution and effects of the present invention. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0038] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right, top, bottom, etc. used in the present invention are only relative to the mutual positional relationship of the components of the present invention in the drawings.

[0039] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this technology belongs. The terms used in the description of this specification are only for describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any combination of one or more of the related listed items.

[0040] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, without departing from the scope of this disclosure, the first element may also be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0041] See Figures 1 to 5 , the spraying device of the technical solution of the present invention is built into the numerical control device 500 and includes a spray head 100, a rotating block 200, a rotating driver 300 for driving the spray head 100 to rotate, and a mounting component 400 for adjusting the rotational plane position of the spray head 100. The spray head 100 passes through the rotating block 200, and the rotating block 200 is connected to the rotating shaft of the rotating driver 300; the rotating driver 300 is arranged on the mounting component 400 to be fixed on the numerical control device 500. Among them, the rotating driver 300 adjusts the spraying angle of the spray head 100 according to the tool length of the tool 510 in the current process.

[0042] In the spraying device of the present invention, the spray head 100 is arranged on the rotating driver 300. During processing, the spraying angle of the spray head 100 can be automatically rotated and adjusted according to the position of the cutting edge of the replaced tool 510, so that the liquid can be sprayed onto the processing position where the tool 510 contacts the workpiece. Further, during the processing, the rotating driver 300 can drive the spray head 100 to continuously move up and down, thereby realizing sweeping spraying, or according to different processing conditions, the rotating driver 300 automatically rotates the spray head 100 at the required spraying angle and spraying time to realize point spraying. The tool length of each tool 510 can be obtained through a preset process and tool length matching table of the tool 510, so that the spraying angle of the spray head 100 can be determined according to the tool 510 data in the table. It should be noted that the rotating driver 300 of the present invention can adopt a small motor to meet the requirements of the narrow space in the miniaturized device.

[0043] Among them, see Figure 1, the injection device of the present invention is built into the numerical control device 500. The injection device can move with the machining spindle of the numerical control device, that is, the injection device can move left and right, forward and backward, and up and down along the XYZ axes with the machining spindle. Thus, during the machining process, when the rotating drive 300 does not rotate the nozzle 100, the nozzle 100 is stationary relative to the spindle. Different from the existing method of manually adjusting the universal joint nozzle 100, the injection device of the present invention can automatically, accurately, quickly and flexibly adjust the injection angle according to different situations. Moreover, compared with the injection method with a manipulator, the injection device of the present invention has lower requirements for the operating space, can be built into a narrow equipment machining space, and has a lower price. Further, the injection device of the present invention is fixed to the outer protection of the equipment spindle or the spindle box through the mounting assembly 400, can be added to the existing equipment, and the addition cost is low.

[0044] Specifically, the nozzle 100 is fixed in the rotating block 200, and then the rotating block 200 is fixed to the rotating shaft of the rotating drive 300. Then the injection device is fixed to the numerical control device 500, such as the injection device is fixed to the spindle protection or the spindle box of the numerical control device 500, so that the injection device can move with the spindle and the tool 510. The rotational plane position of the nozzle 100 is adjusted by the adjustment device so that the cutting edge of the tool 510 is within the range of the nozzle 100. Thus, the nozzle 100 can spray liquids such as coolant and cutting fluid onto the cutting edge of the tool 510. The nozzle 100 is arranged on the rotating shaft of the rotating drive 300, so that the nozzle 100 can rotate around the rotating shaft of the rotating drive 300. Thus, according to the position of the cutting edge of the tool 510, the injection angle of the nozzle 100 can be adjusted, realizing automatic adjustment of the injection angle of the nozzle 100 when replacing different tools 510, replacing the traditional way of manually moving the nozzle 110 or the flexible pipe. Moreover, by adjusting the injection angle and driving the nozzle 100 to move along the XYZ axes by the numerical control device 500, the liquid can be sprayed onto the workpiece to achieve the effect of cleaning the workpiece.

[0045] In some embodiments, the mounting assembly 400 includes a housing 410. The housing 410 is provided with a rotating hole 411. The rotating drive 300 is arranged inside the housing 410. The rotating block 200 is rotatably inserted through the rotating hole 411 to connect the rotating drive 300 and the nozzle 100. See Figure 2 and Figure 3 , a side wall of the housing 410 is provided with a rotating hole 411. The rotating block 200 is inserted through the rotating hole 411. One end of the rotating block 200 is arranged in the inner cavity of the housing 410 and is connected to the rotating shaft of the rotating drive 300. The opposite end of the rotating block 200 is exposed outside the housing 410 and is connected to the nozzle 100. Specifically, the housing 410 is composed of a housing cover and an outer shell with an opening. The housing cover covers the opening of the outer shell so that the rotating drive 300 is sealed inside the housing 410. Further, a sealing ring is arranged at the opening of the outer shell, which can improve the sealing performance.

[0046] In some application embodiments, a connecting block 320 is connected between the rotating shaft of the rotating drive 300 and the rotating block 200. Specifically, the inner diameter of the rotating hole 411 is smaller than the outer diameter. The connecting block 320 is sleeved on the rotating shaft of the rotating drive 300 and is disposed on the narrower side of the rotating hole 411. The diameters of both sides of the rotating block 200 are different. The smaller end of the rotating block 200 is inserted into the housing 410 and abuts against the connecting block 320. A sealing ring is disposed between the rotating block 200 and the wider side of the rotating hole 411 to improve the sealing performance.

[0047] In some embodiments, the mounting assembly 400 includes a first mounting block 420 for fixedly connecting the numerical control device 500, and a second mounting block 430 whose connection position with the first mounting block 420 is adjustable. The second mounting block 430 is connected to the housing 410. Refer to Figure 1 and Figure 3 , the first mounting block 420 includes a first vertical plate and a first horizontal plate, the second mounting block 430 includes a second vertical plate and a second horizontal plate. The first vertical plate is connected to the outer protection of the numerical control device 500. The first horizontal plate and the second horizontal plate are connected. The second vertical plate is connected to a side wall of the housing 410. Further, a part of the first horizontal plate and the second horizontal plate overlap. By adjusting the overlapping position of the two, the rotational plane position of the nozzle 110 can be adjusted.

[0048] In some embodiments, the mounting assembly 400 further includes an adjusting member 440 for adjusting the connection position between the first mounting block 420 and the second mounting block 430. The first mounting block 420 is provided with a first adjusting hole 421 allowing the adjusting member 440 to pass through and move, and the second mounting block 430 is provided with a second adjusting hole 431 allowing the adjusting member 440 to pass through. Refer to Figure 2 and Figure 3, the first mounting block 420 is connected to one side of the housing 410 facing away from the rotating block 200. When the first adjustment hole 421 and the second adjustment hole 431 are in communication, the adjusting member 440 is inserted into the first adjustment hole 421 and the second adjustment hole 431, and the connection between the first mounting block 420 and the second mounting block 430 can be achieved. Since the adjusting member 440 can move within the first adjustment hole 421, when the adjusting member 440 is inserted into the first adjustment hole 421 and the second adjustment hole 431, relative movement occurs between the adjusting member 440 and the first adjustment hole 421 to adjust the connection position between the first mounting block 420 and the second mounting block 430, thereby adjusting the orientation of the nozzle 100, and further adjusting the rotational plane position of the nozzle 100. It can be understood that the first adjustment hole 421 can be a long groove or an arc-shaped groove, and the second adjustment hole 431 can be a circular hole. After the adjusting member 440 is inserted into the first adjustment hole 421 and the second adjustment hole 431, the adjusting member 440 can move within the first adjustment hole 421 to adjust the connection position between the first mounting block 420 and the second mounting block 430, and then adjust the rotational plane position of the nozzle 100. After the adjustment is completed, the adjusting member 440 is tightened.

[0049] In some embodiments, the mounting assembly 400 further includes a connecting member 450 for connecting the first mounting block 420 and the second mounting block 430. The first mounting block 420 is provided with a first connection hole 422 allowing the connecting member 450 to pass through, and the second mounting block 430 is provided with a second connection hole 432 allowing the connecting member 450 to pass through. Refer to Figure 2 and Figure 3 , when the first connection hole 422 and the second connection hole 432 are in communication (aligned), the connecting member 450 is inserted into the first connection hole 422 and the second connection hole 432, and the connection between the first mounting block 420 and the second mounting block 430 can be achieved. Further, the connecting member 450 can be a screw, and the first connection hole 422 and the second connection hole 432 can be threaded holes, so that the first mounting block 420 and the second mounting block 430 are fixedly connected by threaded connection. Further, the connecting member 450 can be a screw. After the connecting member 450 is inserted into the first connection hole 422 and the second connection hole 432, a nut is installed at the end of the connecting member 450, and the first mounting block 420 and the second mounting block 430 can also be fixedly connected. It can be understood that a threaded connection method can also be adopted between the adjusting member 440 and the first adjustment hole 421 and the second adjustment hole 431, or a nut is sleeved at the end of the adjusting member 440 to lock the first mounting block 420 and the second mounting block 430.

[0050] In some embodiments, a cable connector 310 for connecting the wires of the rotation driver 300 is provided on the housing 410. Refer to Figure 2 and Figure 3, the lower side of the cable connector 310 is inserted into the housing 410, the upper side of the cable connector 310 is exposed outside the housing 410, and the electric wire passes through the cable connector 310 and is connected to the rotary drive 300 located inside the housing 410, so as to supply power to the rotary drive 300 and send system signals.

[0051] In some embodiments, the first mounting block 420 is provided with a recess 423, and the cable connector 310 is disposed in the recess 423. Refer to Figure 2 and Figure 3 , the cable connector 310 is disposed above the housing 410, the first horizontal plate of the first mounting block 420 is disposed above the housing 410, the opening of the recess 423 faces the cable connector 310, and the upper side of the cable connector 310 passes through the recess 423 and protrudes from the first mounting block 420, so as not to affect the adjustment of the orientation of the spray head 100.

[0052] In some embodiments, the second mounting block 430 is provided with a through hole 433, and the cable connector 310 is disposed in the through hole 433. The second mounting block 430 is disposed between the first mounting block 420 and the housing 410. The lower side of the second vertical plate of the second mounting block 430 is connected to the upper rear side of the housing 410, and the upper side of the second vertical plate is connected to the second horizontal plate. The through hole 433 is disposed at the connection of the second vertical plate and the second horizontal plate. The upper side of the cable connector 310 passes through the through hole 433 and protrudes from the second mounting block 430, so as not to affect the adjustment of the orientation of the spray head 100.

[0053] In some embodiments, the spray head 100 is provided with a nozzle 110 and a pipe joint 120 for connecting a liquid pipe. The pipe joint 120 is disposed at one end of the nozzle 110, and the nozzle 110 passes through the rotary block 200. Refer to Figure 2 and Figure 3 , the rotary block 200 is provided with a mounting channel. The nozzle 110 passes through the mounting channel and is fixed on the rotary block 200. One end of the nozzle 110 is connected with a pipe joint 120, and the liquid of the liquid pipe enters the nozzle 110 from the pipe joint 120 and is ejected.

[0054] It can be understood that, refer to Figure 4 and Figure 5 , the spray head 100 of the present invention is fixed on the rotary block 200 and can rotate around the rotation axis of the rotary drive 300 in a rotation plane. Then, the spraying range of the spray head 100 is in a rotation plane, and this rotation plane is perpendicular to the rotation axis of the rotary drive 300, and the center line of the spray head 100 is in this rotation plane. Specifically, for example, when the center line of the cutter 510 mounted on the main shaft is in this rotation plane, and when a proper distance is maintained between the spray head 100 and the main shaft and the cutter 510, the spray head 100 can spray the liquid onto the cutting edges of different lengths.

[0055] Specifically, before performing numerical control machining, the operator fixes the first mounting block 420 at a suitable position on the numerical control device 500 according to the spraying range of the spray head 100, so that the spraying device is at a suitable height, and the distance between the spray head 100 and the tool 510 is appropriate, so that tools 510 of different lengths can all be within the spraying range of the spray head 100. Then, after installing the rotation driver 300, the rotation block and the spray head 100 on the housing 410, the second mounting block 430 is installed on the housing 410. The second mounting block 430 is placed below the first mounting block 420. The connecting member 450 is inserted into the first connection hole 422 and the second connection hole 432, and the adjusting member 440 is inserted into the first adjusting hole 421 and the second adjusting hole 431. Further, nuts can be sleeved on the lower ends of the connecting member 450 and the adjusting member 440 respectively, so that the second mounting member and the housing 410 are not easily detached. Then, by moving the adjusting member 440 in the first adjusting hole 421, the orientation of the spray head 100 is adjusted, see Figure 5 , so that the tool 510 is in the rotation plane of the spray head 100. Then, the connecting member 450 and the adjusting member 440 are locked to fix the connection position of the first mounting member and the second mounting member, thereby fixing the rotation plane of the spray head 100. It can be understood that after determining the rotation plane of the spray head 100 by adjusting the connection position of the first mounting member and the second mounting member before machining, generally no further adjustment is required when replacing the tool 510 subsequently.

[0056] When the numerical control device 500 performs workpiece machining, according to the lengths of different tools 510, the rotation driver 300 drives the spray head 100 to move up and down along the rotation plane, that is, the position of the spray head 100 moves relative to the tool 510, so that tools 510 with different tool lengths can all be within the spraying range of the spray head 100. Thus, when the tool 510 processes the workpiece, the spray head 100 can move up and down along the rotation plane, so that the nozzle 110 of the spray head 100 can be aligned with the machining position of the tool 510, realizing automatic adjustment. It should be noted that after each replacement of a different tool 510, the tool length of the tool 510 for the current process can be obtained according to the preset process and tool 510 length matching table, or can also be obtained online through an existing CCD device, so as to determine the spraying angle of the spray head 100 that needs to be set.

[0057] See Figures 1 to 7 , the control method of the spraying device of the technical solution of the present invention is applied to the spraying device of the embodiment of the present invention, and the method at least includes the following steps:

[0058] S100. Obtain the current machining process, and determine the current tool length of the tool 510 according to the pre-input process and tool 510 length matching table;

[0059] S200. Obtain the pre - entered parameter database of the nozzle 100, and calculate the spraying angle or spraying angle range of the nozzle 100 according to the current tool length of the tool 510. Among them, the parameter database of the nozzle 100 includes the horizontal distance between the spindle axis and the axis of the rotation drive 300, the vertical distance between the axis of the rotation drive 300 and the spindle end face, and the vertical direction compensation value.

[0060] S300. Rotate the nozzle 100 by the rotation drive 300 according to the obtained spraying angle or spraying angle range of the nozzle 100, and start the nozzle 100 to perform spraying.

[0061] In the control method of the spraying device of the present invention, the equipment control system obtains the tool length data of the tool 510 for the current process according to the process - tool 510 matching table described in Table 1, determines the spraying angle of the nozzle 100 and automatically adjusts the spraying angle, which is beneficial to ensuring that after replacing tools 510 with different tool lengths, the nozzle 100 can be aligned with the machining position or the cutting edge of the tool 510 for spraying, and can perform sweeping spraying by setting the spraying angle range. Further, its function is turned on and off by the program M code, which can be used flexibly.

[0062] In some embodiments, before machining, the operator determines the sequence of each process and the tool length of the tool 510 used in each process according to the actual machining situation, compiles them into a process - tool 510 length matching table, see the process - tool 510 length matching table shown in Table 1 (only a part of the process - tool length matching data is shown in the table), and enters the process - tool 510 length matching table into the control system. Determining the spraying angle through the pre - entered process - tool 510 length matching table can reduce the system operation complexity and improve the system operation speed, and is convenient for loading and adding in the existing numerical control equipment 500.

[0063]

[0064]

[0065] Table 1 Process - tool 510 length matching table

[0066] In some embodiments, see Figure 7, in scenarios where cooling of the machining position or the tool 510 is required, based on the pre-entered matching table of processes and the tool length of the tool 510, the present invention obtains the tool length c of the tool 510 for the current process, and calculates and determines the spraying angle θ of the nozzle 100 of the current tool 510 according to the pre-entered horizontal distance a between the spindle axis and the axis of the rotation driver 300, the vertical distance b between the axis of the rotation driver 300 and the spindle end face, and the vertical direction compensation value b'. The rotation driver 300 rotates the nozzle 100 automatically to the required spraying angle θ, which is beneficial to ensuring that after each replacement of the tool 510, the nozzle 100 can be aligned with the desired position for spraying. It should be noted that the vertical direction compensation value b' can be deduced based on historical test data and determined through multiple tests and verifications.

[0067] It can be understood that, referring to Figure 7 , the distance a between the spindle axis and the axis of the rotation driver 300 and the distance b between the end of the nozzle 100 and the spindle end face can both be obtained by manual measurement. Among them, the end of the nozzle 100 refers to the end where the liquid is ejected from the nozzle 110. Before measurement, the spindle can be moved up and down first to make the spindle end face and the end of the nozzle 100 in the same horizontal plane, which is convenient for measurement. The tool length c of the tool 510 is a variable and needs to be determined according to the current process and the matching table of processes and the tool length of the tool 510. The spraying angle θ of the nozzle 100 is the angle between the nozzle 110 of the nozzle 100 and the vertical plane. It can be understood that, referring to Figure 6 , the spindle end face can be understood as the lowest surface of the spindle, that is, the junction of the exposed part of the tool 510 and the spindle.

[0068] In an application embodiment, when the nozzle 100 performs spot spraying to cool the tip of the tool 510, the spraying angle θ of the nozzle 100 is calculated as follows:

[0069]

[0070] In the formula, a represents the horizontal distance between the spindle axis and the axis of the rotation driver 300, b represents the vertical distance between the axis of the rotation driver 300 and the spindle end face, and b' represents the vertical direction compensation value.

[0071] In some embodiments, according to actual needs, the present invention can set the spraying angle range of the nozzle 100 and perform sweeping spraying. For example, when waste chips adhere to the tool 510 or the workpiece after machining and it is necessary to clean the tool 510 or the workpiece, the rotation driver 300 continuously rotates the nozzle 100 up and down according to the spraying angle range, and can perform sweeping spraying and cleaning on the tool 510 or the workpiece, etc. Further, the spraying angle range of the present invention can be adjusted by receiving an input.

[0072] In an application embodiment, when the tool 510 is swept and sprayed to clean the tool 510, the nozzle 100 sweeps and sprays up and down along the tool length direction, so that waste chips wound on the tool 510 can be cleaned. Among them, according to the length of the cutting edge of the tool 510 to be cleaned, the nozzle 100 is made to sweep and spray back and forth between the angles θ d and θ ， d in the middle.

[0073] Among them, when the nozzle 100 sweeps and sprays the tool 510, the spraying angle range of the nozzle 100 is calculated as follows:

[0074]

[0075] In the formula, (θ d , θ ， d ) represents the angle range of the nozzle 100 sweeping and spraying the tool 510; a represents the horizontal distance between the spindle axis and the axis of the rotation drive 300, b represents the vertical distance between the axis of the rotation drive 300 and the spindle end face, and b' represents the vertical direction compensation value; d represents the length of the cutting edge of the tool 510 to be cleaned (that is, the length of the part of the tool 510 exposed outside the spindle).

[0076] In an application embodiment, after machining is completed, when the workpiece needs to be swept and sprayed, first move the X-axis and Y-axis of the equipment so that the center of the workpiece moves to directly below the spindle. According to the calculated spraying angle θ e rotate the nozzle 100, and on this basis, set a spraying range θ e ±e′, and cooperate with the synchronous reciprocating movement of the X-axis and Y-axis of the equipment during spraying, so as to achieve sweeping and spraying cleaning of the specified area of the workpiece within a period of time T.

[0077] Among them, when the nozzle 100 sweeps and sprays the workpiece, the spraying angle of the nozzle 100 is calculated as follows:

[0078]

[0079] In the formula, θ e represents the angle value of the nozzle 100 sweeping and spraying the workpiece, where (θ e ±e′) is the angle range of the nozzle 100 sweeping and spraying the workpiece. In the formula, e′ is a preset value. In a specific embodiment, the angle range of the nozzle 100 sweeping and spraying the workpiece is θ e ±5, that is, e′ = 5. a represents the horizontal distance between the spindle axis and the axis of the rotation drive 300, b represents the vertical distance between the axis of the rotation drive 300 and the spindle end face, b' represents the vertical direction compensation value, and e represents the distance (vertical direction) from the top surface of the workpiece to the lowest tip of the tool 510. Among them, the value of the distance e can be obtained according to the workpiece processing parameters.

[0080] Further, when spraying and cleaning the workpiece, the nozzle 100 continuously rotates up and down for sweeping spraying, and at the same time, it can also cooperate with the XYZ three-axis movement of the numerical control device 500 to achieve the effect of cleaning the entire workpiece. It should be noted that the moving distances of the XYZ three axes of the cooperating numerical control device 500 can be determined according to the size data of the workpiece.

[0081] In an application embodiment, the nozzle 100 of the present invention can perform fixed-point cleaning. Specifically, after starting the spraying of a liquid such as coolant, by adjusting the spraying angle and the XYZ three-axis movement of the device, the nozzle 100 flushes a specified position of the device to achieve fixed-point cleaning. Further, the above position is set as a cleaning point, and the set three-axis coordinates corresponding to the current cleaning point and the spraying angle of the nozzle are recorded in the system, where the system can record multiple cleaning point data.

[0082] As mentioned above, it is only a preferred embodiment of the present invention. The present invention is not limited to the above implementation manners. As long as it achieves the technical effects of the present invention by the same means, any modifications, equivalent replacements, improvements, etc., made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure. All should belong to the protection scope of the present invention. Within the protection scope of the present invention, its technical solutions and / or implementation manners can have various different modifications and changes.

Claims

1. A spraying device, characterized in that: The invention is built into a numerical control device (500), comprising: a nozzle (100), a rotating block (200), a rotating driver (300) for driving the nozzle (100) to rotate, and a mounting assembly (400) for adjusting the rotation plane position of the nozzle (100), wherein the nozzle (100) is inserted into the rotating block (200), and the rotating block (200) is connected to the rotating shaft of the rotating driver (300); the rotating driver (300) is arranged on the mounting assembly (400) to be fixed on the numerical control device (500); wherein the rotating driver (300) adjusts the spraying angle of the nozzle (100) according to the tool length of a tool (510) in the current process.

2. The spraying device according to claim 1, characterized in that The mounting assembly (400) comprises a housing (410), the housing (410) being provided with a rotating hole (411), the rotating driver (300) being arranged in the housing (410), and the rotating block (200) being rotatably inserted into the rotating hole (411) to connect the rotating driver (300) and the spray head (100).

3. The spraying device according to claim 2, characterized in that The mounting assembly (400) comprises a first mounting block (420) for fixedly connecting the numerical control device (500), and a second mounting block (430) whose connection position with the first mounting block (420) is adjustable, and the second mounting block (430) is connected to the housing (410).

4. The spraying device according to claim 3, characterized in that The mounting assembly (400) further comprises an adjusting member (440) for adjusting the connection position between the first mounting block (420) and the second mounting block (430); the first mounting block (420) is provided with a first adjusting hole (421) allowing the adjusting member (440) to pass through and having an adjustable abutting position; the second mounting block (430) is provided with a second adjusting hole (431) allowing the adjusting member (440) to pass through.

5. The spraying device according to claim 4, characterized in that The mounting assembly (400) further comprises a connecting member (450) for connecting the first mounting block (420) and the second mounting block (430), wherein the first mounting block (420) is provided with a first connecting hole (422) allowing the connecting member (450) to pass through, and the second mounting block (430) is provided with a second connecting hole (432) allowing the connecting member (450) to pass through.

6. The spraying device according to claim 1, characterized in that The spray head (100) is provided with a nozzle (110) and a pipe joint (120) for connecting a liquid pipe, wherein the pipe joint (120) is arranged at one end of the nozzle (110), and the nozzle (110) is inserted into the rotating block (200).

7. A method for controlling an injection device, applied to the injection device according to any one of claims 1 to 6; the method comprising the following steps: S100, obtaining the current processing step, and determining the current tool (510) length according to a pre-input process and tool (510) length matching table; S200, obtaining a pre-entered database of nozzle (100) parameters, and calculating the spray angle or spray angle range of the nozzle (100) according to the current tool (510) length; wherein the nozzle (100) parameter database includes a horizontal distance between the main shaft axis and the axis of the rotary driver (300), a vertical distance between the axis of the rotary driver (300) and the main shaft end face, and a vertical direction compensation value; S300: According to the obtained spraying angle or spraying angle range of the spray head (100), the rotary driver (300) rotates the spray head (100) and starts the spray head (100) to spray.

8. The method according to claim 7, characterized in that When the nozzle (100) performs spot spraying to cool the tip of the tool (510), the spraying angle θ of the nozzle (100) is calculated as follows: In the formula, a represents the horizontal distance between the axis of the main shaft and the axis of the rotary driver (300), b represents the vertical distance between the axis of the rotary driver (300) and the end face of the main shaft, and b' represents the vertical direction compensation value.

9. The method according to claim 7, characterized in that: When the nozzle (100) performs sweep spraying on the tool (510), the spray angle range of the nozzle (100) is calculated as follows: In the formula, (θ d ,θ ， d ) represents the angle range of the spray head (100) sweeping the tool (510); a represents the horizontal distance between the axis of the main shaft and the axis of the rotary drive (300); b represents the vertical distance between the axis of the rotary drive (300) and the end face of the main shaft; b' represents the vertical compensation value; and d represents the length of the blade of the tool (510) to be cleaned.

10. The method according to claim 7, characterized in that When the nozzle (100) performs sweep spraying on the workpiece, the spray angle of the nozzle (100) is calculated as follows: In the formula, θ e represents the angle value of the spray head (100) sweeping the workpiece, where (θ e ±e′) is the angular range of the spray head (100) spraying the workpiece, wherein e′ is a preset value; a represents the horizontal distance between the axis of the spindle and the axis of the rotary driver (300), b represents the vertical distance between the axis of the rotary driver (300) and the end face of the spindle, and b′ represents the vertical compensation value; and e represents the distance from the top surface of the workpiece to the bottom tip of the tool (510).

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