A CNC machining center and its built-in inspection system

Abstract

This invention belongs to the technical field of automation, and particularly relates to a CNC machining center. It includes a machine body with a first working space. The machine body also houses a spindle head and a first tool set located within the first working space. A first spindle is mounted on the spindle head. The machine body also includes a built-in tool detection device mounted on the spindle head and movable with the first spindle. This built-in tool detection device is retractable within the spindle head and extends into the first working space during operation. A built-in workpiece detection device is also located within the first working space. This built-in workpiece detection device is retractable within the machine body and extends into the first working space during operation. This built-in structure significantly improves efficiency by detecting both the workpiece and the tool.

Description

Technical Field

[0001] This invention belongs to the field of automation technology, and in particular relates to a CNC machining center and a built-in detection system. Background Technology

[0002] Automated machining centers are widely used in the field of automated manufacturing due to their high machining accuracy and efficiency. With the advancement of technology, automated machining centers have made significant progress in the integration of machining and inspection. Automated machining centers can not only machine workpieces, but also directly inspect the machined workpieces and provide real-time feedback on the machining accuracy, so as to complete complex and high-precision machining tasks. In existing machining centers, workpiece inspection devices are generally set up on the outside of the equipment. After the workpieces are machined inside, they need to be transported to a designated location on the outside for inspection. This setup and process requires the equipment to wait for inspection before continuing processing, resulting in low efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a CNC machining center that greatly improves efficiency by using a built-in structure to inspect workpieces and cutting tools.

[0004] Based on this, the present invention provides a CNC machining center, including a machine body, a first working space provided on the machine body, a spindle frame and a first tool set located in the first working space, and a first spindle provided on the spindle frame;

[0005] The machine body is also equipped with a built-in tool detection device mounted on the spindle frame and movable with the first spindle. The built-in tool detection device can be retracted inside the spindle frame and extended into the first working space during operation.

[0006] The first workspace is also equipped with a built-in workpiece detection device, which can be retracted into the machine body and extended into the first workspace during operation.

[0007] As described above, in a CNC machining center, the built-in workpiece detection device includes a first telescopic arm and a workpiece detection component disposed on the first telescopic arm. The first telescopic arm can drive the workpiece detection component to be housed in the machine body, and in the working state, the first telescopic arm extends outward into the first working space, so that the workpiece detection component can detect the workpiece processed in the working space.

[0008] As described above, in a CNC machining center, the first telescopic arm includes a first mounting base and a first driving member connected to the first mounting base, wherein the first driving member is used to drive the first mounting base to move in a horizontal direction.

[0009] In a CNC machining center as described above, the workpiece detection assembly is disposed on the front side of the first mounting base, and the workpiece detection assembly is provided with a workpiece detection probe extending upward perpendicular to the first mounting base.

[0010] As described above, in a CNC machining center, the built-in tool detection device includes:

[0011] The second telescopic arm is mounted on the main spindle frame and located on one side of the main spindle;

[0012] The tool detection component is mounted on the second telescopic arm. The second telescopic arm can retract the tool detection component into the spindle frame. In the working state, the second telescopic arm extends outward into the first working space, so that the tool detection component can detect the first tool group in the working space.

[0013] As described above, in a CNC machining center, the second telescopic arm includes a second mounting base and a second driving member connected to the second mounting base, the second driving member being used to drive the second mounting base to move in a vertical direction.

[0014] As described above, in a CNC machining center, a mounting bracket is provided inside the spindle frame, the second drive component is disposed on the mounting bracket, and its output end is installed with the connecting part on the second mounting base.

[0015] As described above, in a CNC machining center, the machine body further includes a second workspace that is independently set apart from the first workspace, and the second workspace is provided with a second spindle and a second tool set;

[0016] The machine body is also provided with a first material rack for storing workpieces in the first workspace and a second material rack for storing workpieces in the second workspace. After the first spindle and the first tool group work together to process the workpiece for the first time, the second spindle can grab the workpiece and move it to the second workspace for a second processing.

[0017] In the CNC machining center described above, both the first spindle and the second spindle are inverted spindles to clamp the workpiece on the lower side.

[0018] The present invention also provides a built-in detection system, which employs the above-mentioned built-in tool detection device and built-in workpiece detection device. The built-in detection system moves the first spindle within the first working space and approaches the first tool group, thereby extending the built-in tool detection device from the spindle frame to detect and position the uppermost tool on the first tool group; and extends the built-in workpiece detection device into the first working space to detect the workpiece that has been processed in the first working space.

[0019] Implementing the embodiments of the present invention has the following beneficial effects:

[0020] 1. This invention provides a CNC machining center, which includes a built-in tool detection device and a built-in workpiece detection device within a first working space. The built-in tool detection device is directly mounted on the spindle frame where the first spindle is installed, and can move with the first spindle to detect the tool assembly within the working space. The built-in workpiece detection device can directly detect the workpieces processed within the working space, avoiding the need to transport the workpieces to a designated location outside the working space for detection, thereby shortening the waiting time required for the detection process and further improving the efficiency of the equipment.

[0021] 2. The built-in inspection system is mainly designed for the inspection of both tools and workpieces, which are carried out within the first working space 101. This minimizes the time required for the machining center to perform inspection work and further improves efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the machining center.

[0024] Figure 2 for Figure 1 Internal structure diagram;

[0025] Figure 3 A schematic diagram of the workpiece inspection device in the extended state;

[0026] Figure 4 This is a schematic diagram of a workpiece inspection device;

[0027] Figure 5 A schematic diagram showing the workpiece inspection device in its stored state;

[0028] Figure 6 This is a schematic diagram showing the working state of the workpiece inspection device;

[0029] Figure 7 A schematic diagram of the spindle and tool assembly;

[0030] Figure 8 This is a schematic diagram showing the tool detection device in its stored state.

[0031] Figure 9 This is a schematic diagram showing the working state of the tool detection device;

[0032] Figure 10 for Figure 9Internal structure diagram;

[0033] Figure 11 This is a schematic diagram of the tool inspection device.

[0034] Figure 12 This is a schematic diagram of the first material rack. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a CNC machining center, including a machine body 1, a first working space 101 provided on the machine body 1, a spindle frame 90 and a first tool set 91 located in the first working space 101, and a first spindle 901 provided on the spindle frame 90;

[0037] The machine body 1 is also equipped with a built-in tool detection device mounted on the spindle frame 90 and movable with the first spindle 901. The built-in tool detection device can be retracted inside the spindle frame 90 and extended into the first working space 101 during operation.

[0038] The first workspace 101 is also equipped with a built-in workpiece inspection device, which can be retracted into the machine body 1 and extended into the first workspace 101 during operation. The first workspace also includes a built-in tool detector and a built-in workpiece inspection device. The built-in tool detector is directly mounted on the spindle frame where the first spindle is installed, allowing it to move with the first spindle and inspect the tool assembly within the workspace. The built-in workpiece inspection device can directly inspect the workpieces processed within the workspace, avoiding the need to transport the workpieces to a designated location outside the workspace for inspection, thereby shortening the waiting time required for the inspection process and further improving equipment efficiency.

[0039] like Figures 3 to 6As shown, specifically, the built-in workpiece inspection device in this solution has the following structure: it includes a first telescopic arm 21 and a workpiece inspection component 22 mounted on the first telescopic arm 21. The first telescopic arm 21 can retract the workpiece inspection component 22 into the machine body 1, and in the working state, the first telescopic arm 21 extends outward into the first working space 101, allowing the workpiece inspection component 22 to inspect the workpieces processed within the first working space 101. By using a built-in workpiece inspection component, the need to transport the workpiece to a designated location outside the first working space for inspection is avoided, thereby shortening the waiting time required for the inspection process and further improving the efficiency of the equipment.

[0040] Furthermore, this solution, through its telescopic design, allows the workpiece inspection component to be housed within the machine body during processing and extended into the first working space for inspection after processing. This avoids interfering with automated processing within the working space and effectively protects the workpiece inspection component. Of course, this solution also includes a second set of workpiece inspection devices in the second working space.

[0041] After this improvement, the equipment can integrate advanced detection technology, achieving seamless integration of processing and inspection. It can detect workpiece dimensions and machining accuracy in real time after processing, and, in conjunction with a highly automated machining center, feed the data back to the control system, thereby achieving real-time automatic compensation and adjustment. This built-in direct detection method not only improves inspection efficiency but also reduces errors caused by manual intervention, significantly enhancing processing accuracy and production efficiency.

[0042] In this embodiment of the invention, the first telescopic arm 21 is configured to drive the workpiece detection component 22 to move, so as to realize the detection work by retracting or extending it into the first working space 101. Of course, by the system's determination, it can also be prepared to extend when the processing work is about to be completed, so as to seamlessly connect the detection and further improve efficiency.

[0043] The storage location of the workpiece inspection component 22 in this solution is not limited to the first working space 101, but can also be set on the machine body or outside the machine body. It can also be moved into the first working space 101 by the first telescopic arm 21.

[0044] In a preferred embodiment, the first telescopic arm 21 extends outward from the inner wall portion 1011 of the first working space 101 into the first working space 101. It is housed within the inner side wall of the first working space 101, which is equivalent to being inside the body 1. This makes the structure more compact and minimizes the distance when the arm is extended in the working state, resulting in faster speed and further improving efficiency.

[0045] Specifically, in this embodiment, for ease of storage, the inner wall of the body 1 within the first working space 101 has an inner cavity 1012. In the stored state, the first telescopic arm 21 retracts into the inner cavity 1012 of the body 1, and the inner cavity 1012 has a channel opening 1013 communicating with the working space 101. When extended, it extends directly from the channel opening 1013 into the working space, thus shortening the required extension distance of the first telescopic arm 21.

[0046] Furthermore, in this embodiment of the invention, the inner chamber 1012, in addition to housing the workpiece detection assembly 22 and preventing obstruction of processing within the first working space 101, also protects the workpiece detection assembly 22, preventing debris from splashing onto it during processing. Therefore, this solution also provides a sealing structure at the channel opening 1013, which covers the channel opening 1013. When extension is required, the channel opening can be opened first. The sealing structure can be a cover or a door structure, and its opening method can be sliding or hinged. In this preferred embodiment, a sliding door 1014 is used, that is, a sliding door 1014 for sealing the channel opening 1013 is also provided on the inner wall 1011 of the working space 101.

[0047] Of course, in this embodiment of the invention, in conjunction with the inverted first spindle 901, the first telescopic arm 21 drives the workpiece detection component 22 to extend outward into the first working space 101 in a horizontal posture, and the extended position is located below the first spindle 901. After the workpiece detection component 22 extends outward, the workpiece can be detected simply by the first spindle 901 driving the workpiece downward.

[0048] Specifically, in this embodiment of the invention, the built-in workpiece detection device has the following structure: the first telescopic arm 21 includes a first mounting base 211 and a first driving member 212 connected to the first mounting base 211. The first driving member 212 is used to drive the first mounting base 211 to move horizontally. In this solution, the first mounting base 211 has a long strip structure, which is equivalent to a telescopic arm. Its length supports the extended workpiece detection component 22. It can also be configured as a sleeve-type telescopic structure to achieve the above-mentioned storage or extension.

[0049] Of course, this solution combines direct installation on the inner wall of the first working space 101, which does not need to be too long. Preferably, it is an integral first mounting base 211, and the first mounting base 211 is slidably disposed in the inner cavity 1012. Specifically, a fixed base 41 is provided in the inner cavity 1012 located below the first mounting base 211. By setting a slider on the fixed base 41 and a corresponding guide rail on the lower side of the first mounting base 211, the fixed base 41 can slide to support the first mounting base 211. The guide rail is located at the first mounting base 211 to adapt to its long and narrow structure, so as to save more space.

[0050] In addition, to improve accuracy, a positioning detection module can be set up to detect whether the first mounting base 211 is extended or extended into position. In this solution, it can also be centrally set on the fixed base 41. The positioning detection module 42 can use infrared or positioning switch, etc., to detect the movement of the first mounting base 211 to ensure the normal operation of the program.

[0051] This solution uses a first driving component 212 to move the first mounting base 211 horizontally. This can be achieved using a power system such as a motor, cylinder, or hydraulic system. Alternatively, the first driving component 212 can directly move the first mounting base 211 horizontally, or it can move the first mounting base 211 horizontally via a transmission component. Preferably, the first mounting base 211 can be a cylinder, with its output shaft connected to the first mounting base 211. This results in a simpler and more compact structure.

[0052] Specifically, in this scheme, the cylinder body is installed in the inner cavity 1012 by the fixing member 2121, and its output end is connected to the front side of the first mounting base 211. Taking this scheme as an example, a connecting block is set on the first mounting base 211 that is opposite to the position of the cylinder output end for connection.

[0053] In this embodiment of the invention, the workpiece detection assembly 22 is disposed on the front side of the first mounting base 211, and the workpiece detection assembly 22 is provided with a workpiece detection probe 221 extending upward perpendicular to the first mounting base 211. It is used in conjunction with the inverted first spindle 901, allowing the extended workpiece detection probe 221 to be closer to the workpiece on the spindle. This solution can detect workpiece parameters such as dimensional parameters, shape parameters, and positional parameters through the workpiece detection probe 221, specifically such as radial dimensions, axial dimensions, hole diameter, contour shape, surface flatness, and roughness. This can typically be achieved using a high-precision laser sensor, contact sensor, laser scanner, or machine vision system.

[0054] Specifically, in this embodiment of the invention, the front end of the first mounting base 211 has a stepped mounting portion 2110, and the workpiece detection component 22 is disposed on the mounting portion 2110.

[0055] like Figures 7 to 11As shown, in this embodiment of the invention, the built-in tool detection device is mounted on the first spindle 901 and can move with the first spindle 901. In this solution, "built-in" not only means that the tool detection device is built into the first working space 101, but also built into the first spindle 901. It is directly mounted on the spindle frame on which the first spindle 901 is mounted, and can move with the spindle to detect the tool group in the working space, thereby greatly improving efficiency and eliminating the need for a separate position on the machine body. Furthermore, by utilizing the movement range of the spindle, it can be brought closer to the tool group before detection to further improve detection efficiency.

[0056] Specifically, the built-in tool detection device of this solution includes: a second telescopic arm 31, mounted on the spindle frame 90 and located on one side of the spindle 9; and a tool detection assembly 32, mounted on the second telescopic arm 31. The second telescopic arm 31 can retract the tool detection assembly 32 into the spindle frame 90, and in the working state, the second telescopic arm 31 extends into the first working space 101, allowing the tool detection assembly 32 to detect the first tool group 91 within the first working space 101. Through the telescopic design, the tool detection assembly can be retracted into the spindle frame during workpiece machining without affecting automated machining within the working space, effectively protecting the tool detection assembly.

[0057] In this embodiment of the invention, the second telescopic arm 31 extends from the lower end of the spindle frame 90 into the workspace 101, and is aligned with the direction in which the first spindle 901 clamps the workpiece. Furthermore, when the second telescopic arm 31 extends, the tool detection component 32 is located on one side of the workpiece and close to the first tool group 91. This positional arrangement facilitates rapid positioning of the spindle for tool group detection. It can be understood that since the tool directly processes the workpiece on the spindle, this solution involves the spindle moving to the tool group for processing. In this case, the system needs to determine the initial position of the first spindle 901 and the position of the processing head on the tool group. However, this solution directly extends the second telescopic arm 31 from one side of the workpiece, meaning that when it extends, it is already at the preset position of the spindle 901, and its position is close to the workpiece (i.e., the processing position), thus simplifying the detection process.

[0058] Therefore, in this solution, the spindle needs to move within the workspace. Generally, it has a transverse movement component for horizontal movement and a lifting component 81 for vertical movement. In this solution, the spindle frame 90 is mounted on the lifting component 81, and the second telescopic arm 31 rises and falls together with the spindle frame 90. This simplifies the second telescopic arm 31; it first moves with the spindle frame 90 to a position close to the tool assembly 91 before extending, thus reducing the required length of the second telescopic arm 31. Furthermore, it results in a more compact structure, minimizes the distance in the extended working state, and increases speed, thereby further improving efficiency.

[0059] Specifically, in the retracted state, the second telescopic arm 31 retracts into the spindle frame 90, and the spindle frame 90 has an opening communicating with the first working space 101. When extended, it extends directly from the opening into the working space, which also shortens the extension distance required for the second telescopic arm 31.

[0060] Furthermore, this solution not only accommodates the second telescopic arm 31 to avoid obstructing processing within the first working space 101, but also protects the tool detection assembly 32, preventing debris from splashing onto it during processing. Therefore, this solution also includes a cover at the opening to seal it. When extension is needed, the opening can be opened first. In this solution, the spindle frame 90 is also equipped with a cover for sealing the opening. The cover can be a baffle 9011 that can be rotated or slid open.

[0061] Specifically, in this embodiment of the invention, the built-in tool detection device has the following structure: the second telescopic arm 31 includes a second mounting base 311 and a second driving member 312 connected to the second mounting base 311. The second driving member 312 is used to drive the second mounting base 311 to move vertically. In this solution, the second mounting base 311 has a long strip-shaped structure, which is equivalent to a telescopic arm. Its length supports the extended tool detection component 32. It can also be configured as a sleeve-type telescopic structure to achieve the above-mentioned storage or extension.

[0062] This solution incorporates a directly mounted second mounting base 311 within the tool holder 90, which does not require excessive extension. The second mounting base 311 is preferably an integral unit, and it is slidably mounted within the tool holder 90. Specifically, a second fixed seat is provided within the inner tool holder 90, located on one side of the second mounting base 311. A slider is mounted on the second fixed seat, and a corresponding guide rail is provided on one side of the second mounting base 311, allowing the second fixed seat to slidably support the second mounting base 311. The guide rail is positioned at the second mounting base 311 to accommodate its elongated structure, thus saving space.

[0063] This solution uses a second driving component 312 to drive the second mounting base 311 to move vertically. This can be achieved using a power system such as a motor, cylinder, or hydraulic system. Alternatively, the second driving component 312 can directly move the second mounting base 311, or it can move the second mounting base 311 through a transmission component. Preferably, the second driving component 312 can be a cylinder, with its output shaft connected to the second mounting base 311. This results in a simpler and more compact structure.

[0064] Specifically, in this design, the cylinder body is mounted inside the spindle frame 90 via a mounting bracket 3112, and its output end is connected to the connecting part on the second mounting base 311.

[0065] In this invention, a mounting box 30 can be directly provided on one side of the spindle frame 90, so that the tool detection device can be directly assembled in the mounting box 30.

[0066] In this embodiment of the invention, the tool detection component 32 is disposed on the lower side of the second mounting base 311. The tool detection component 32 has a multi-directional detection head 320, which includes at least a first detection head 3201 and a second detection head 3202 horizontal to the moving direction of the second mounting base 311, a third detection head 3203 and a fourth detection head 3204 perpendicular to the moving direction of the second mounting base 311, and a fifth detection head 3205 perpendicular to the directions of the first detection head 3201, the second detection head 3202, the third detection head 3203, and the fourth detection head 3204. Considering that a machining center typically has multiple tools in its tool set to achieve various types of machining and different requirements, the cutting edge positions and orientations of different tools are different. This solution provides multiple directional detection heads so that the corresponding directional detection head can be adapted according to the different orientations and positions of the cutting edges on the tool set, meeting the needs of complex environments. Taking this solution as an example, the first detection head 3201 and the second detection head 3202 are oriented up and down respectively, the third detection head 3203 and the fourth detection head 3204 are oriented left and right respectively, and the fifth detection head 3205 is oriented in a frontal position perpendicular to the top, bottom, left and right. This structure can basically meet the usage requirements of the entire workspace.

[0067] Of course, depending on the usage requirements, the five detection heads mentioned above can also be installed through the rotating base 3200, so that the first detection head 3201, the second detection head 3202, the third detection head 3203 and the fourth detection head 3204 can also rotate with the rotating base 3200 to achieve multi-directional and multi-angle detection.

[0068] like Figures 1 to 12 As shown, further, in this embodiment of the invention, in order to improve the efficiency of multi-faceted machining of workpieces, the machine body 1 is provided with a first working space 101 and a second working space 102 that are independent of each other; the first working space 101 is provided with a first spindle 901 and a first tool set 91, and the second working space 102 is provided with a second spindle 902 and a second tool set 92. In this solution, the first spindle 901 is used to clamp the workpiece and perform machining in the first working space 101 using the first tool set 91, and the second spindle 902 is used to clamp the workpiece and perform machining in the second working space 102 using the second tool set 92, so that machining in the two working spaces can be performed independently.

[0069] Of course, the second workspace 102 is also equipped with the aforementioned independent built-in workpiece detection device and built-in tool detection device.

[0070] Furthermore, the machine body 1 is also equipped with a first material rack 903 for storing workpieces in the first working space 101 and a second material rack 904 for storing workpieces in the second working space 102. After the first spindle 901 and the first tool set 91 process the workpiece for the first time, the second spindle 902 can pick it up and transfer it to the second working space 102 for a second processing. The first material rack 903 loads unprocessed or first-processed workpieces, the first spindle 901 picks up the unprocessed workpieces and transfers them to the first working space 101 for the first processing, and after processing, the first-processed workpieces are placed on the second material rack 904, and the second spindle 902 performs a second processing on the workpieces in the second working space 102. This allows for dual-sided processing (front and back sides) on a single machine, and the first and second working spaces are independently set up, with no interference between the two sides, allowing simultaneous processing and greatly improving efficiency.

[0071] Of course, this solution takes front and back side processing as an example to demonstrate that the dual-station linkage machining center can process the front and back sides of the workpiece through independent dual processing spaces, or it can be unrestricted to the front and back sides, such as the clamping surface and different types of work, or roughing and finishing. Compared with the existing single-arm machining center, it does not need to wait for the first processed workpiece to be flipped before the second processing, thus greatly improving efficiency.

[0072] In this embodiment of the invention, the first spindle 901 rotates after clamping the workpiece, cooperating with the cutting tools on the tool set to process the workpiece. In this solution, both the first spindle 901 and the second spindle 902 are inverted spindles to clamp the workpiece on the lower side. The inverted spindle configuration is beneficial for chip removal during processing, preventing most of the chips from falling onto the spindle.

[0073] Furthermore, the inverted spindle configuration simplifies the structure by using spindle rotation and spindle movement to move the workpiece to the tool set for machining. The moving components can be located on the upper side of the spindle and are unaffected by chip removal. Specifically, the machine body 1 is further equipped with a transverse component 82 for moving the first spindle 901 laterally within the first workspace 101. The transverse component 82 also includes a lifting component 81 for moving the first spindle 901 vertically within the first workspace 101. With the transverse movement defined as the Y-axis and the vertical movement as the Z-axis, the spindle in this design achieves multi-directional movement within a plane through the transverse component 82 and the lifting component 81. This allows the workpiece clamped on the first spindle 901 to move laterally and move up and down towards the first tool set 91. Alternatively, the entire transverse component 82 can be moved along an X-axis perpendicular to the Y-axis to achieve movement at any position within the overall first workspace 101. The structure of the second spindle 902 in this scheme is similar to that of the first spindle 901, and its specific structure can be referenced from the limitations of the first spindle 901.

[0074] In this embodiment of the invention, to adapt to various processing requirements of the machining center, the first tool group 91 includes a rotating tool disc and a plurality of machining tools disposed on the rotating tool disc, wherein the axis of the rotating tool disc is perpendicular to the axis of the first spindle 901. The structure of the second tool group 92 in this solution is similar to that of the first tool group 91, and its specific structure can be referred to the definition of the first tool group 91.

[0075] In this embodiment of the invention, the material rack is used to store workpieces. To facilitate continuous processing in the first workspace, the first workspace 101 extends to the upper side of the first material rack 903, and the machine body 1, located on the upper side of the first material rack 903, has a feeding port communicating with the first workspace 101. That is, this solution allows the spindle to directly pick up workpieces from the feeding port, or place the workpieces onto the first material rack from the feeding port after processing, through the feeding port and the moving components on the first spindle. This shortens the workpiece handling time and eliminates the need for additional handling structures.

[0076] Specifically, in this embodiment of the invention, the material rack has the following structure: the first material rack 903 includes a first frame 9031 located on one side of the machine body 1 and a first conveyor line 9032 disposed on the first frame 9031; the second material rack 904 includes a second frame 9041 located on the other side of the machine body 1 and spaced apart from the first frame 9031, and a second conveyor line 9032 disposed on the second frame 9041. Furthermore, the first frame 9031 is a double-layer frame with upper and lower layers, and the first conveyor line 9032 is used to drive the workpiece to circulate and transport on the double-layer frame. For ease of loading and unloading, part of the first conveyor line 9032 is opposite to the feeding port, and part extends outside the machine body 1, to facilitate the replenishment of materials or the transfer of processed materials by workers or automated production lines.

[0077] In addition, this solution may employ a conveying mechanism between the first material rack 903 and the second material rack 904. This conveying mechanism is used to transfer the workpieces processed on the first material rack 903 to the second material rack 904. This conveying mechanism can be directly mounted on the machine body or independently mounted outside the machine body, such as on an automated production line. It can employ a robotic arm or similar device to facilitate the transfer of workpieces processed on the first material rack 903 to the second material rack 904 for secondary processing. Furthermore, the conveying mechanism can also change the posture of the workpiece during transport, such as flipping it so that it is placed on the second material rack 904 for direct gripping by the second spindle 902. Alternatively, a workpiece flipping mechanism can be directly installed on the second material rack to flip the workpieces transferred to the second material rack before they enter the second workspace.

[0078] This solution also provides a built-in detection system. The built-in detection system moves the first spindle 901 within the first workspace 101 and approaches the first tool group 91, so that the built-in tool detection device extends out of the spindle frame 90 to detect and position the uppermost tool on the first tool group 91.

[0079] By extending the built-in workpiece inspection device into the first workspace 101, the workpiece that has been processed in the first workspace 101 is inspected.

[0080] Furthermore, the built-in inspection system primarily targets the inspection of both the cutting tool and the workpiece within the first workspace 101, thereby minimizing the time required for the machining center to perform inspection work and further improving efficiency.

[0081] For example, this solution describes a detection method using a built-in tool detection device. This method primarily detects the position and state of the first spindle and the uppermost tool of the first tool group (i.e., the tool used during machining). First, the position of the first spindle is obtained (using the center point of the workpiece as a reference). The system is then moved to the position just before machining begins, prior to the first tool group 91. At this point, the tool detection component 32 extends and positions the tool group. The first spindle is then moved to contact the uppermost tool, thus obtaining the accurate contact position between the workpiece and the tool group, which is used to correct the corresponding position of the system. Therefore, this solution can periodically run the built-in tool detection device after a new tool is replaced or after multiple system cycles are set, allowing for compensation of the first spindle's displacement based on tool wear. Furthermore, by integrating the tool detection device into the first spindle, overall efficiency is higher, avoiding excessive downtime due to periodic detection and ensuring smooth machining progress.

[0082] Similarly, the built-in workpiece inspection device can directly inspect the finished workpiece, so as to provide timely feedback on the quality of workpiece processing and adjust the displacement or provide feedback on tool wear based on processing errors.

[0083] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention.

[0084] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A CNC machining center, characterized in that, Includes a body (1), on which a first working space (101) is provided, and inside the body (1) a spindle frame (90) and a first tool set (91) located in the first working space (101) are also provided, and a first spindle (901) is provided on the spindle frame (90). The machine body (1) is also provided with a built-in tool detection device mounted on the spindle frame (90) and movable with the first spindle (901). The built-in tool detection device can be retracted inside the spindle frame (90) and extended into the first working space (101) during operation. The first workspace (101) is also equipped with a built-in workpiece detection device, which can be retracted into the body (1) and extended into the first workspace (101) during operation; The built-in workpiece inspection device includes a first telescopic arm (21) and a workpiece inspection component (22) disposed on the first telescopic arm (21). The first telescopic arm (21) can drive the workpiece inspection component (22) to be stored in the machine body (1). In the working state, the first telescopic arm (21) extends out into the first working space (101) so that the workpiece inspection component (22) can inspect the workpiece processed in the first working space (101). The first telescopic arm (21) includes a first mounting base (211) and a first driving member (212) connected to the first mounting base (211). The first driving member (212) is used to drive the first mounting base (211) to move in a horizontal direction. The workpiece detection assembly (22) is disposed on the front side of the first mounting base (211), and the workpiece detection assembly (22) is provided with a workpiece detection probe (221) extending upward perpendicular to the first mounting base (211). The built-in tool detection device includes: a second telescopic arm (31), which is mounted on the spindle frame (90) and located on one side of the spindle (9); The tool detection component (32) is mounted on the second telescopic arm (31). The second telescopic arm (31) can drive the tool detection component (32) to be stored in the spindle frame (90). In the working state, the second telescopic arm (31) extends out into the first working space (101) so that the tool detection component (32) can detect the first tool group (91) in the first working space (101). The second telescopic arm (31) includes a second mounting base (311) and a second drive member (312) connected to the second mounting base (311). The second drive member (312) is used to drive the second mounting base (311) to move in a vertical direction.

2. A CNC machining center according to claim 1, characterized in that, The spindle frame (90) is provided with a mounting bracket (3112), the second drive member (312) is mounted on the mounting bracket (3112), and the output end is installed on the connecting part of the second mounting base (311).

3. A CNC machining center according to any one of claims 1-2, characterized in that, The machine body (1) also includes a second working space (102) that is independently set apart from the first working space (101). The second working space (102) is provided with a second spindle (902) and a second tool set (92). The machine body (1) is also provided with a first material rack (903) for storing workpieces in the first working space (101) and a second material rack (904) for storing workpieces in the second working space (102). After the first spindle (901) and the first tool group (91) work together to process the workpiece for the first time, the workpiece can be picked up by the second spindle (902) and placed into the second working space (102) for the second processing.

4. A CNC machining center according to claim 3, characterized in that, Both the first spindle (901) and the second spindle (902) are inverted spindles to clamp the workpiece on the lower side.

5. A built-in detection system, characterized in that, Using any one of the CNC machining centers as described in claims 1-4, the built-in detection system moves the first spindle (901) within the first workspace (101) and approaches the first tool set (91), thereby extending the built-in tool detection device from the spindle frame (90) to detect and position the uppermost tool on the first tool set (91). By extending the built-in workpiece inspection device into the first working space (101), the workpiece that has been processed in the first working space (101) is inspected.

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