Calibrating device for tool center of numerically controlled lathe

Abstract

The invention discloses a numerical control lathe tool center calibration device. The numerical control lathe tool center calibration device comprises a workbench, a first moving assembly, a second moving assembly, a tool changing assembly, a driving assembly, a contact type tool setting gauge and a cleaning assembly. The workbench serves as a basic bearing structure of the device and is used for installing and supporting all components. The first moving assembly and the second moving assembly are used for controlling the tool changing assembly to move and adjust the coordinate position in the plane. The driving assembly is used for controlling the contact type tool setting gauge to move in the horizontal plane, so that the driving assembly is close to the cleaning assembly to control the contact type monitoring end to clean scraps and cutting fluid, and spatial position movement of the tool changing assembly and the contact type tool setting gauge can be achieved at the same time. The tool setting device can flexibly adapt to the position difference of machining surfaces of different types of tools on the tool turret, solves the problem that a traditional tool setting device cannot adapt to multi-tool detection due to the fact that the position of a tool setting gauge is fixed or the adjustment dimension is limited, and achieves full-coverage detection of multiple tools.

Description

Technical Field

[0001] This invention belongs to the field of machine tool technology, and specifically relates to a CNC lathe tool center calibration device. Background Technology

[0002] In the field of CNC lathe machining, precise tool setting is a crucial step in ensuring machining accuracy, directly affecting the dimensional accuracy and surface quality of the workpiece. Currently, CNC lathes are typically equipped with multi-station turrets to enable continuous operation of multiple machining processes. Different types of tools, such as external turning tools, internal turning tools, and threading tools, can be mounted on the turret. The machining positions (e.g., radial, axial) of these tools differ significantly from the machining surfaces to be inspected.

[0003] In existing technologies, contact-type tool setters are mostly used for tool parameter detection. However, the tool setter positions in traditional tool setting devices are mostly fixed or can only achieve simple adjustment in one direction. When it is necessary to detect tools at different positions on the tool turret, since the spatial positions of the tool's machining surface are different, a fixed-position tool setter generally cannot be accurately aligned with the machining surface to be detected, resulting in insufficient detection accuracy or inability to complete the detection of some tools.

[0004] To address this issue, existing solutions often rely on manual adjustment of tool mounting positions or manual movement of the tool setter. This is not only cumbersome and inefficient, but also prone to introducing errors due to human intervention, making it difficult to guarantee consistency during batch processing. While some automated solutions can move the tool setter, their adjustment dimensions are limited, making it difficult to flexibly adapt to the differences in machining surface positions of different types of tools on the turret. This results in poor adaptability and makes it difficult to meet the high-precision machining requirements of complex workpieces.

[0005] Therefore, in order to address the problem of different machining surfaces to be inspected due to different tool positions on the turret, there is an urgent need for a calibration device that can automatically and accurately detect the positions of multiple tools on the turret by flexibly adjusting the position and monitoring direction of the contact tool setter. Summary of the Invention

[0006] The purpose of this application is to address the shortcomings of existing technologies by providing a CNC lathe tool center calibration device that can adjust the height of the tool setter and clean its surface. This solves the problems of existing fixed tool setters, which cannot flexibly match the height differences of different types of tools, and also addresses the issue of residual chips and cutting fluid on the tool setter surface.

[0007] This application achieves the above-mentioned objectives through the following technical solution: a CNC lathe tool center calibration device, comprising a worktable, a first moving component, a second moving component, a tool changing component, a drive component, a contact tool setter, and a cleaning component. The worktable has clamping portions at both ends for holding the workpiece. The first moving component is mounted on the worktable, and the second moving component is slidably mounted on the first moving component. Both the first and second moving components can move in a horizontal plane, and their directions of movement are perpendicular to each other. The tool changing component is mounted on the second moving component, and the switching end of the tool changing component can... The cleaning component is positioned close to and against the monitoring end of the contact tool setter. The contact tool setter is mounted on a drive assembly, which is slidably mounted on an L-shaped guide bracket. The L-shaped guide bracket is vertically adjustable and located between the clamping part and the tool changing assembly. The drive assembly can adjust the direction of the monitoring end of the contact tool setter. The cleaning component is mounted on the L-shaped guide bracket, and its control end can abut against the fixed end of the contact tool setter, allowing the cleaning end of the cleaning component to align with the monitoring end of the contact tool setter and clean the residual chips and cutting fluid from the surface of the contact tool setter.

[0008] To optimize the above technical solution, the specific measures also include:

[0009] Furthermore, the tool changing assembly includes a housing, a tool changing motor, and a tool turret. The housing is mounted on the second moving assembly, the tool changing motor is located inside the housing, and the output end of the tool changing motor is connected to the tool turret. The monitoring end of the contact-type tool setter can move toward the tool turret of the tool changing assembly.

[0010] Furthermore, a third moving component is provided below the L-shaped guide bracket. The third moving component includes a hydraulic cylinder, a lifting platform, and a base plate. The hydraulic cylinder is located inside the workbench, and the moving end of the hydraulic cylinder is provided with a lifting platform. The base plate is located on the lifting platform, and the L-shaped guide bracket is located on the base plate. The hydraulic cylinder can adjust the vertical height of the L-shaped guide bracket.

[0011] Furthermore, the L-shaped guide bracket includes two horizontally arranged L-shaped guide rails, which are distributed vertically in a vertical plane. Each L-shaped guide rail includes two vertically spaced L-shaped plates that are parallel to each other and form a guide groove between them. The L-shaped plates on both sides of the two L-shaped guide rails are connected by vertically arranged connecting plates. The cleaning component is respectively disposed on the two connecting plates, and the driving component is located between the two L-shaped guide rails. A portion of the structure of the driving component is slidably disposed within the guide groove.

[0012] Furthermore, the drive assembly includes a U-shaped bracket, a motor, two rotating shafts, and four annular protrusions. The fixed end of the contact-type tool setter is horizontally mounted on the vertical end of the U-shaped bracket. Rotating shafts are rotatably mounted on the outer sides of the horizontal ends of the upper and lower sides of the U-shaped bracket. The end of the rotating shaft away from the U-shaped bracket is mounted in a corresponding guide groove. The four annular protrusions are integrally formed in pairs at the upper and lower ends of the rotating shafts. The two L-shaped plates corresponding to each L-shaped track are respectively mounted between the two sets of corresponding annular protrusions. One rotating shaft is connected to the output end of the motor. The fixed end of the motor is mounted on the inner sidewall of the horizontal end of the U-shaped bracket. Two rollers are rotatably mounted on the side of the horizontal end of the U-shaped bracket near the L-shaped track. The two rollers abut against the sidewalls of the two L-shaped plates that are far apart from each other.

[0013] Furthermore, the two cleaning components are symmetrically arranged. Each cleaning component includes a connecting frame, a cylinder, a spraying element, and a compression element. The connecting frame is connected to a connecting plate, and the cylinder is disposed between the connecting frame and the connecting plate. One end of the spraying element is connected to the cylinder, and the other end of the spraying element can face the monitoring end of the contact tool setter. One end of the compression element is slidably disposed in the cylinder, and the other end of the compression element passes through the connecting plate and abuts against the fixed end of the contact tool setter.

[0014] Furthermore, the compression component includes a piston, a slide rod, and a contact plate. The piston is disposed on the side of the cylinder near the connecting plate, and the slide rod is disposed on the side of the piston away from the cylinder. The slide rod passes through the connecting plate and is connected to the contact plate. A reset component is disposed between the contact plate and the connecting plate. The side of the cylinder away from the piston is connected to the injection component.

[0015] Furthermore, the spraying component includes a connecting pipe, a nozzle, a first one-way valve, and a second one-way valve. One end of the connecting pipe is connected to the end of the cylinder away from the piston, and the other end of the connecting pipe is connected to the nozzle. The first one-way valve is provided on the connecting pipe, and the second one-way valve is provided on the side of the cylinder away from the piston. The conduction direction of the first one-way valve is that the gas inside the cylinder flows to the connecting pipe, and the conduction directions of the first one-way valve and the second one-way valve are opposite.

[0016] Furthermore, the reset component includes a limiting rod and a spring. The limiting rod is disposed between the connecting plate and the contact plate, and the spring is sleeved on the limiting rod. The two ends of the spring are respectively connected to the connecting plate and the contact plate.

[0017] Furthermore, an electromagnet is provided on the side of the connecting plate near the contact plate, and a contact switch and a control module are provided on the inner side wall of the horizontal end of the connecting frame. The trigger end of the contact switch corresponds to the limit rod, and the contact switch and the control module are electrically connected. The electromagnet is also electrically connected to the control module. When the U-shaped bracket is attached to the connecting plate, the electromagnet can magnetically attract the U-shaped bracket. At this time, the limit rod contacts the contact switch, and the electromagnet is activated and attracts the U-shaped bracket.

[0018] The beneficial effects of this application are:

[0019] The CNC lathe tool center calibration device provided in this application can simultaneously realize the spatial position movement of the tool changing component and the contact tool setter. It can flexibly adapt to the differences in the machining surface position of different types of tools (such as external turning tools, internal turning tools, threading tools, etc.) on the tool turret, and solve the problem that traditional tool setting devices cannot adapt to the detection of multiple tools due to the fixed position or limited adjustment dimension of the tool setter. It can achieve full coverage detection of all tools on the tool turret.

[0020] The contact tool setter provided in this application can be moved to one side after tool setting is completed. The cleaning component removes any residual chips and cutting fluid that may remain on the surface of the contact tool setter, thereby improving the accuracy of the tool setter and facilitating subsequent tool setting.

[0021] The contact tool setting device provided in this application can be linked with a cleaning component. The contact tool setting device drives the cleaning component to clean the monitoring end of the contact tool setting device. The cleaning component does not require an additional driver, which is convenient and efficient. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 for Figure 1 Partial exploded view;

[0024] Figure 3 for Figure 2 Partial structural diagram;

[0025] Figure 4 for Figure 3 A partial structural diagram;

[0026] Figure 5 for Figure 2 A schematic diagram of the connection structure between the cleanup component and the driver component in the diagram;

[0027] Figure 6 for Figure 5 A schematic diagram of the structure of the driving component in the diagram;

[0028] Figure 7 for Figure 5 A schematic diagram of the cleanup component in the diagram;

[0029] Figure 8 for Figure 7 Another perspective structural diagram of the cleanup component;

[0030] Figure 9 for Figure 8 The main view in the middle;

[0031] Figure 10 for Figure 5 A top view of part of the structure.

[0032] Explanation of reference numerals in the attached figures:

[0033] Worktable 10, clamping part 11, first moving assembly 20, first motor 21, first lead screw 22, first platform 23, second moving assembly 30, second platform 31, second motor 32, second lead screw 33, tool changing assembly 40, machine housing 41, tool changing motor 42, turret 43, drive assembly 50, U-shaped bracket 51, motor 52, rotating shaft 53, annular protrusion 54, gear ring 55, roller 56, contact tool setter 60, cleaning assembly 70, connecting frame 71, cylinder 72. Spraying component; 73. Connecting pipe; 731. Nozzle; 732. First check valve; 733. Second check valve; 734. Compression component; 74. Piston; 741. Slide rod; 742. Contact plate; 743. Reset component; 75. Limiting rod; 751. Spring; 752. Electromagnet; 76. Contact switch; 77. L-shaped guide bracket; 80. L-shaped plate; 81. Guide groove; 82. Connecting plate; 83. Engaging teeth; 84. Third moving component; 85. Electric hydraulic cylinder; 851. Lifting platform; 852. Control module; 90. Detailed Implementation

[0034] 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.

[0035] like Figures 1 to 10As shown: This application provides a CNC lathe tool center calibration device for achieving precise calibration of the CNC lathe tool center. It includes a worktable 10, a first moving component 20, a second moving component 30, a tool changing component 40, a drive component 50, a contact tool setter 60, and a cleaning component 70. The worktable 10 serves as the basic supporting structure of the device, used to install and support each component. The first moving component 20 and the second moving component 30 control the tool changing component 40 to adjust its coordinate position in a plane. The drive component 50 controls the contact tool setter 60 to move horizontally, facilitating the cleaning of chips and cutting fluid at the monitoring end of the contact tool setter near the cleaning component 70.

[0036] The worktable 10 has clamping parts 11 at both ends for holding the workpiece. This is a component of existing CNC lathes and is used to firmly clamp the workpiece to be processed or the calibration auxiliary parts to ensure the positional stability of the workpiece or auxiliary parts during the calibration process.

[0037] The first moving component 20 is disposed on the worktable 10, and the second moving component 30 is slidably disposed on the first moving component 20. Both the first moving component 20 and the second moving component 30 can move in the horizontal plane. The moving directions of the first moving component 20 and the second moving component 30 are perpendicular to each other. The tool changing component 40 is slidably disposed on the second moving component 30. The switching end of the tool changing component 40 can approach and abut against the monitoring end of the contact tool setting device 60.

[0038] The first moving assembly 20 includes a first motor 21, a first lead screw 22, and a first platform 23. The first motor 21 is mounted on the side wall of the worktable 10. The first lead screw 22 is drivenly connected to the output shaft of the first motor 21. The first platform 23 is drivenly mounted on the first lead screw 22 and is also slidably mounted on the worktable 10. The second moving assembly 30 includes a second platform 31, a second motor 32, and a second lead screw 33. The second platform 31 is slidably mounted on the first platform 23. The second motor 32 is mounted on one side of the first platform 23. The output end of the second motor 32 is drivenly connected to the second lead screw 33. The second lead screw 33 passes through the second platform 31. The side of the second lead screw 33 away from the second motor 32 is rotatably connected to the first platform 23. The second platform 31 is driven to slide on the first platform 23 by the second lead screw 33. The tool changing assembly 40 is mounted on the second platform 31. The first platform 23 moves along the length of the worktable 10 (i.e., the X-axis direction), and the second platform 31 moves along a direction perpendicular to the first lead screw 22 (i.e., the Y-axis direction). Through the coordinated action of the first moving component 20 and the second moving component 30, the tool changing component 40 can move in two dimensions on the horizontal plane of the worktable 10, thereby adjusting the position of the tool changing component 40.

[0039] The tool changing assembly 40 includes a housing 41, a tool changing motor 42, and a turret 43. The housing 41 is mounted on the second moving assembly 30, i.e., on the second platform 31. The tool changing motor 42 is located inside the housing 41, and its output is connected to the turret 43. The monitoring end of the contact-type tool setter 60 can move towards the turret 43 of the tool changing assembly 40. Several mounting positions are provided on the turret 43 for mounting different types of tools. The rotation of the tool changing motor 42 controls the rotation of the turret 43, facilitating tool setting for different tools.

[0040] A contact tool setter 60 is mounted on a drive assembly 50, which is horizontally mounted on an L-shaped guide bracket 80. The L-shaped guide bracket 80 is height-adjustable on the worktable 10 and is located between the clamping part 11 and the tool changing assembly 40. The drive assembly 50 can adjust the direction of the monitoring end of the contact tool setter 60. The L-shaped guide bracket 80 supports the drive assembly 50 and the contact tool setter 60. The height adjustment of the L-shaped guide bracket 80 can adjust the height position of the contact tool setter 60. The horizontal movement of the drive assembly 50 on the L-shaped guide bracket 80 can adjust the horizontal position of the contact tool setter 60 to adapt to the calibration requirements of different tools.

[0041] The L-shaped guide bracket 80 includes two horizontally arranged L-shaped guide rails, which are distributed vertically in a vertical plane. Each L-shaped guide rail includes two vertically spaced L-shaped plates 81, which are parallel to each other and form a guide groove 82 between them. The L-shaped plates 81 on both sides of the two L-shaped guide rails are connected by vertically arranged connecting plates 83. The drive assembly 50 is located between the two L-shaped guide rails. Part of the structure of the drive assembly 50 is movable within the guide groove 82, that is, the drive assembly 50 can move along the groove direction of the guide groove 82.

[0042] Meanwhile, in order to adjust the height of the contact tool setter 60, a third moving component 85 is provided below the L-shaped guide bracket 80. The third moving component 85 includes an electric hydraulic cylinder 851 and a lifting platform 852. The electric hydraulic cylinder 851 is located inside the worktable 10, and the moving end of the electric hydraulic cylinder 851 is provided with the lifting platform 852. The L-shaped guide bracket 80 is located on the lifting platform 852. The electric hydraulic cylinder 851 can adjust the height of the L-shaped guide bracket 80 in the vertical direction.

[0043] The drive assembly 50 includes a U-shaped bracket 51, a motor 52, two rotating shafts 53, and four annular protrusions 54. The fixed end of the contact-type tool setter 60 is horizontally mounted on the vertical end of the U-shaped bracket 51. Rotating shafts 53 are rotatably mounted on the outer sides of the horizontal ends of the upper and lower sides of the U-shaped bracket 51. The end of the rotating shaft 53 away from the U-shaped bracket 51 is positioned within a corresponding guide groove 82. A gear ring 55 is mounted on the rotating shaft 53. Engaging teeth 84 are mounted on the inner side of the L-shaped plate 81 outside the L-shaped track. The rotating shaft 53 engages with the engaging teeth 84 through the gear ring 55. One rotating shaft 53 is connected to the output end of the motor 52. Next, the fixed end of the motor 52 is set on the inner side wall of the horizontal end of the U-shaped bracket 51. Four annular protrusions 54 are integrally formed in pairs at the upper and lower ends of the rotating shaft 53. The two L-shaped plates 81 corresponding to each L-shaped track are respectively set between the two sets of corresponding annular protrusions 54. Two rollers 56 are rotatably set on the side of the horizontal end of the U-shaped bracket 51 near the L-shaped track. The two rollers 56 abut against the outer side walls of the two L-shaped plates 81 that are far apart from each other. The annular protrusions 54 and rollers 56 are used to limit the movement direction of the rotating shaft 53, ensuring that the rotating shaft 53 always maintains a stable running direction.

[0044] The movement process of drive component 50 is as follows:

[0045] When the position of the drive assembly 50 needs to be adjusted, the motor 52 is started to drive the rotating shaft 53 to rotate. Since the rotating shaft 53 meshes with the inner gear of the outer L-shaped plate 81, the rotating shaft 53 rotates and slides in the guide groove 82 by means of gear meshing. During the movement, the rollers on the outer sides of the two L-shaped plates 81 will rotate relative to the L-shaped plates 81.

[0046] Considering that the contact tool setter 60 may become contaminated with waste chips or cutting fluid from the tool during the tool setting process, resulting in a decrease in tool setting accuracy, a cleaning component 70 is also provided on the L-shaped guide bracket 80. The control end of the cleaning component 70 can abut against the fixed end of the contact tool setter 60, so that the cleaning end of the cleaning component 70 can be aligned with the monitoring end of the contact tool setter 60 to clean the waste chips and cutting fluid remaining on the surface of the contact tool setter 60.

[0047] Two cleaning components 70 are provided, and the two cleaning components 70 are symmetrically arranged. Each cleaning component 70 includes a connecting frame 71, a cylinder 72, a spray element 73, and a compression element 74. The connecting frame 71 is connected to the connecting plate 83, and the cylinder 72 is disposed between the connecting frame 71 and the connecting plate 83. One end of the spray element 73 is connected to the cylinder 72, and the other end of the spray element 73 can face the monitoring end of the contact tool setter 60. One end of the compression element 74 is slidably disposed inside the cylinder 72, and the other end of the compression element 74 passes through the connecting plate 83 and can abut against the fixed end of the contact tool setter 60. A cleaning medium is provided inside the cylinder 72. The cleaning medium can be air, and the specific cleaning medium can be selected according to the actual situation. This embodiment does not make a specific limitation.

[0048] The compression component 74 includes a piston 741, a slide rod 742, and a contact plate 743. The piston 741 is located on the side of the cylinder 72 near the connecting plate 83. The slide rod 742 is located on the side of the piston 741 away from the cylinder 72. The slide rod 742 passes through the connecting plate 83 and connects to the contact plate 743. A reset component 75 is provided between the contact plate 743 and the connecting plate 83. The side of the cylinder 72 away from the piston 741 is connected to the injection component 73. The spraying component 73 includes a connecting pipe 731, a nozzle 732, a first check valve 733, and a second check valve 734. One end of the connecting pipe 731 is connected to the end of the cylinder 72 away from the piston 741, and the other end of the connecting pipe 731 is connected to the nozzle 732. The first check valve 733 is provided on the connecting pipe 731, and the second check valve 734 is provided on the side of the cylinder 72 away from the piston 741. The conduction direction of the first check valve 733 is the direction in which the cleaning medium in the cylinder 72 flows to the connecting pipe 731, and the conduction directions of the first check valve 733 and the second check valve 734 are opposite.

[0049] The reset component 75 includes a limiting rod 751 and a spring 752. The limiting rod 751 is disposed between the connecting plate 83 and the contact plate 743, and the spring 752 is sleeved on the limiting rod 751. The two ends of the spring 752 are connected to the connecting plate 83 and the contact plate 743, respectively. The function of the reset component 75 is to reset the contact plate 743 after the fixed end of the contact tool setter 60 is separated from the contact plate 743. While the contact plate 743 is resetting in the reverse direction, the cleaning medium can be drawn into the cylinder 72, which facilitates cleaning of the monitoring end of the contact tool setter 60 during the next tool setting.

[0050] An electromagnet 76 is also provided on the side of the connecting plate 83 near the contact plate 743. A contact switch 77 and a control module 90 are provided on the inner side wall of the horizontal end of the connecting frame 71. The trigger end of the contact switch 77 corresponds to the limit rod 751. The electromagnet 76, the contact switch 77, the first motor 21, the second motor 32 and the electric hydraulic cylinder 851 are all electrically connected to the control module 90. When the U-shaped bracket 51 is attached to the connecting plate 83, the electromagnet 76 can magnetically attract the U-shaped bracket 51. At this time, the limit rod 751 contacts the contact switch 77, the electromagnet 76 is activated and attracts the U-shaped bracket 51, and at the same time outputs a signal to the control module 90 to indicate that the cleaning component 70 is in working condition.

[0051] The process of cleaning component 70 is as follows:

[0052] When the contact-type tool setter 60 moves to the end along the L-shaped guide rail, the fixed end of the contact-type tool setter 60 first contacts the contact plate 743 and pushes the contact plate 743 to move closer to the connecting plate 83, causing the slide rod 742 and piston 741 to compress the cleaning medium in the cylinder 72. At this time, the second one-way valve 734 closes and the first one-way valve 733 opens. The cleaning medium passes through the first one-way valve 733 and the connecting pipe 731 and is sprayed out from the two nozzles 732 to rinse the surface of the monitoring end of the contact-type tool setter 60. At the same time, the limit rod 751 moves with the contact plate 743 and abuts against the trigger contact switch 77. The contact switch 77 drives the control module to start the electromagnet 76. Magnet 76 activates the U-shaped bracket 51 to maintain the stable position of the contact tool setter 60. After the calibration device completes the detection action, that is, after the tool contacts the monitoring end of the contact tool setter 60 for calibration, the control module 90 controls the contact tool setter 60 to move in the reverse direction through the drive component 50. The limit rod 751 separates from the contact switch 77, the electromagnet 76 separates from the U-shaped bracket 51, and the contact plate 743 resets under the elastic force of the spring 752, driving the piston 741 to move in the reverse direction. At this time, the first one-way valve 733 closes and the second one-way valve 734 opens. The external cleaning medium is replenished into the cylinder 72 through the second one-way valve 734 to prepare for the next detection.

[0053] By configuring the cleaning component 70, the contact tool setter 60 can be automatically cleaned. Combined with the linkage control of the control module 90, this ensures that the surface of the contact tool setter 60 remains clean before and after each calibration operation, effectively preventing interference from waste chips, cutting fluid, and other impurities on calibration accuracy, further improving the reliability of the device and the accuracy of calibration. The control module 90 can be an integrated control terminal; this embodiment does not impose specific limitations.

[0054] Meanwhile, the tool setting process of the control module is set with strict triggering conditions. That is, the control module 90 will only start the formal tool setting calibration program after the drive component 50 triggers the contact switch 77. The specific control logic is as follows:

[0055] After the contact tool setter 60 completes the cleaning operation, the motor 52 controls the U-shaped bracket 51 of the drive assembly 50 to move towards the turret 43 in the guide groove 82. When the drive assembly 50 moves to the preset tool setting preparation position, the limit rod 751 disengages from the current contact switch 77, the U-shaped bracket 51 separates from the electromagnet 76 of the current cleaning assembly 70, the spring 752 pushes the contact plate 743 to reset, and the contact switch 77 sends a signal to the control module that the cleaning is complete. However, the tool setting program has not yet started at this time.

[0056] As the drive assembly 50 continues to move to the tool setting start position, the fixed end of its contact-type tool setter 60 contacts and pushes the contact plate 743 of the cleaning assembly 70 on the other side (near the turret 43), causing the limit rod 751 to move towards the connecting plate 83 and triggering the contact switch 77 on that side. After the contact switch 77 is triggered, it immediately sends a tool setting ready signal to the control module 90, at which point the control module officially starts the tool setting calibration procedure.

[0057] The control module 90 first controls the electromagnet 76 on this side to be energized, and fixes the U-shaped bracket 51 by magnetic adsorption, so that the contact tool setter 60 is kept stable at the tool setting start position.

[0058] Subsequently, the control module 90 sends movement commands to the first moving component 20 and the second moving component 30 according to the pre-stored tool type parameters, driving the turret 43 to slowly move the tool under test towards the monitoring end of the contact tool setter 60.

[0059] During the process of the tool approaching the monitoring end, the control module 90 receives feedback signals from the contact tool setter 60 in real time. When the tool contacts the monitoring end and reaches the preset pressure value, the control module 90 records the coordinate parameters of the first moving component 20 and the second moving component 30 at this time.

[0060] Based on the preset tool parameters, the control module 90 automatically calculates the tool center offset and generates compensation data to be stored in the CNC system;

[0061] After the tool setting is completed, the control module 90 controls the electromagnet 76 to de-energize, releases the attraction to the U-shaped bracket 51, and instructs the drive component 50 to drive the contact tool setter 60 back to the initial position, while controlling the tool changing component 40 to reset.

[0062] By using the triggering of contact switch 77 as the sole start condition for the tool setting program, it is ensured that each tool setting operation is performed when the contact tool setter 60 is in the preset starting position. This avoids calibration errors caused by positional deviations of the tool setter and prevents the equipment from initiating the tool setting action under unexpected conditions, thereby improving the safety of the device operation and the consistency of tool setting accuracy. This control logic creates a strict linkage between the position positioning of the mechanical structure and the program startup of the electronic control system, further enhancing the reliability of the device.

[0063] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A CNC lathe tool center calibration device, characterized in that: The device includes a worktable, a first moving component, a second moving component, a tool changing component, a drive component, a contact tool setter, and a cleaning component. The worktable has clamping portions at both ends for holding workpieces. The first moving component is mounted on the worktable, and the second moving component is slidably mounted on the first moving component. Both the first and second moving components can move horizontally, and their directions of movement are perpendicular to each other. The tool changing component is mounted on the second moving component, and its switching end can approach and abut against the monitoring end of the contact tool setter. The contact tool setter is mounted on the drive component, which is slidably mounted on an L-shaped guide bracket. The L-shaped guide bracket is vertically adjustable and located between the clamping portions and the tool changing component. The drive component can adjust the direction of the monitoring end of the contact tool setter. The cleaning component is mounted on the L-shaped guide bracket, and its control end abuts against the fixed end of the contact tool setter, allowing the cleaning end of the cleaning component to align with the monitoring end of the contact tool setter and clean residual chips and cutting fluid from its surface.

2. The CNC lathe tool center calibration device according to claim 1, characterized in that: The tool changing assembly includes a housing, a tool changing motor, and a tool turret. The housing is mounted on a second moving component, and the tool changing motor is located inside the housing. The output end of the tool changing motor is connected to the tool turret, and the monitoring end of the contact-type tool setter can move toward the tool turret of the tool changing assembly.

3. The CNC lathe tool center calibration device according to claim 1, characterized in that: A third moving component is provided below the L-shaped guide bracket. The third moving component includes a hydraulic cylinder, a lifting platform, and a base plate. The hydraulic cylinder is located inside the workbench, and the moving end of the hydraulic cylinder is provided with a lifting platform. The base plate is located on the lifting platform, and the L-shaped guide bracket is located on the base plate. The hydraulic cylinder can adjust the vertical height of the L-shaped guide bracket.

4. The CNC lathe tool center calibration device according to claim 3, characterized in that: The L-shaped guide bracket includes two horizontally arranged L-shaped guide rails, which are distributed vertically in a vertical plane. Each L-shaped guide rail includes two vertically spaced L-shaped plates that are parallel to each other and form a guide groove between them. The L-shaped plates on both sides of the two L-shaped guide rails are connected by vertically arranged connecting plates. The cleaning component is respectively disposed on the two connecting plates, and the driving component is located between the two L-shaped guide rails. A portion of the structure of the driving component is slidably disposed within the guide groove.

5. The CNC lathe tool center calibration device according to claim 4, characterized in that: The drive assembly includes a U-shaped bracket, a motor, two rotating shafts, and four annular protrusions. The fixed end of the contact-type tool setter is horizontally mounted on the vertical end of the U-shaped bracket. Rotating shafts are rotatably mounted on the outer sides of the horizontal ends of the upper and lower sides of the U-shaped bracket. The end of the rotating shaft away from the U-shaped bracket is mounted in a corresponding guide groove. The four annular protrusions are integrally formed in pairs at the upper and lower ends of the rotating shafts. The two L-shaped plates corresponding to each L-shaped track are respectively mounted between the two sets of corresponding annular protrusions. One rotating shaft is connected to the output end of the motor. The fixed end of the motor is mounted on the inner sidewall of the horizontal end of the U-shaped bracket. Two rollers are rotatably mounted on the side of the horizontal end of the U-shaped bracket near the L-shaped track. The two rollers abut against the sidewalls of the two L-shaped plates that are far apart from each other.

6. The CNC lathe tool center calibration device according to claim 5, characterized in that: The two cleaning components are symmetrically arranged. Each cleaning component includes a connecting frame, a cylinder, a spraying element, and a compression element. The connecting frame is connected to a connecting plate, and the cylinder is disposed between the connecting frame and the connecting plate. One end of the spraying element is connected to the cylinder, and the other end of the spraying element can face the monitoring end of the contact tool setter. One end of the compression element is slidably disposed in the cylinder, and the other end of the compression element passes through the connecting plate and abuts against the fixed end of the contact tool setter.

7. The CNC lathe tool center calibration device according to claim 6, characterized in that: The compression component includes a piston, a slide rod, and a contact plate. The piston is located on the side of the cylinder near the connecting plate. A slide rod is located on the side of the piston away from the cylinder. The slide rod passes through the connecting plate and connects to the contact plate. A reset component is located between the contact plate and the connecting plate. The side of the cylinder away from the piston is connected to the injection component.

8. The CNC lathe tool center calibration device according to claim 7, characterized in that: The spraying component includes a connecting pipe, a nozzle, a first one-way valve, and a second one-way valve. One end of the connecting pipe is connected to the end of the cylinder away from the piston, and the other end of the connecting pipe is connected to the nozzle. The first one-way valve is provided on the connecting pipe, and the second one-way valve is provided on the side of the cylinder away from the piston. The first one-way valve is directed to allow gas inside the cylinder to flow into the connecting pipe, and the first and second one-way valves are directed in opposite directions.

9. The CNC lathe tool center calibration device according to claim 8, characterized in that: The reset component includes a limiting rod and a spring. The limiting rod is disposed between the connecting plate and the contact plate, and the spring is sleeved on the limiting rod. The two ends of the spring are respectively connected to the connecting plate and the contact plate.

10. The CNC lathe tool center calibration device according to claim 9, characterized in that: An electromagnet is also provided on the side of the connecting plate near the contact plate. A contact switch and a control module are provided on the inner side wall of the horizontal end of the connecting frame. The trigger end of the contact switch corresponds to the limit rod. The contact switch is electrically connected to the control module, and the electromagnet is electrically connected to the control module. When the U-shaped bracket is attached to the connecting plate, the electromagnet can magnetically attract the U-shaped bracket. At this time, the limit rod contacts the contact switch, and the electromagnet is activated and attracts the U-shaped bracket.

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