Numerical control machining center and built-in detection system

Abstract

The invention belongs to the technical field of automation, and particularly relates to a numerical control machining center. Comprising a machine body, a first working space is formed in the machine body, a main shaft frame and a first cutter set which are located in the first working space are further arranged in the machine body, and a first main shaft is arranged on the main shaft frame; the machine body is further provided with a built-in tool detection device which is arranged on the main shaft frame and can move along with the first main shaft, the built-in tool detection device can retract into the main shaft frame and extend into the first working space when working, and a built-in workpiece detection device is further arranged in the first working space. And the built-in workpiece detection device can be retracted into the machine body and extends into the first working space during working. A workpiece and a cutter are detected through a built-in structure, and the efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automation, and in particular relates to a numerical control machining center and a built-in detection system. Background Art

[0002] Automated machining centers have high machining accuracy and efficiency and are widely used in the field of automated machining. With the advancement of technology, automated machining centers have made significant progress in the integration of machining and testing. In automated machining centers, not only can the workpiece be processed, but the processed workpiece can also be directly inspected and the machining accuracy can be fed back in time, so as to complete complex and high-precision machining tasks. In existing machining centers, workpiece detection devices are generally set on the outside of the equipment. After the workpiece is processed internally, it needs to be transported to the designated location outside for inspection. Such settings and process equipment need to wait for inspection before continuing processing, resulting in low efficiency. Summary of the invention

[0003] The object of the present invention is to provide a CNC machining center which can detect workpieces and cutting tools through a built-in structure, thereby greatly improving efficiency.

[0004] Based on this, the present invention provides a CNC machining center, including a machine body, a first working space is provided on the machine body, a spindle frame and a first tool group located in the first working space are also provided in the machine body, and a first spindle is provided on the spindle frame; The machine body is also provided with a built-in tool detection device which is arranged on the main shaft frame and can move with the first main shaft. The built-in tool detection device can be retracted into the main shaft frame and extend outward into the first working space when working. A built-in workpiece detection device is also provided in the first working space. The built-in workpiece detection device can be retracted into the machine body and extended into the first working space during operation.

[0005] In a CNC machining center as described above, the built-in workpiece detection device includes a first telescopic arm and a workpiece detection component arranged on the first telescopic arm. The first telescopic arm can drive the workpiece detection component to be stored in the machine body, and when in 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.

[0006] In the CNC machining center as described above, the first telescopic arm includes a first mounting seat and a first driving member connected to the first mounting seat, and the first driving member is used to drive the first mounting seat to move in a horizontal direction.

[0007] In the CNC machining center as described above, the workpiece detection assembly is arranged at the front side of the first mounting seat, and the workpiece detection assembly is provided with a workpiece detection probe extending upward perpendicularly to the first mounting seat.

[0008] In the CNC machining center as described above, the built-in tool detection device comprises: A second telescopic arm is provided on the main shaft frame and is located on one side of the main shaft; The tool detection assembly is arranged on the second telescopic arm. The second telescopic arm can drive the tool detection assembly to be stored in the main shaft frame. When in working state, the second telescopic arm extends outward into the first working space, so that the tool detection assembly can detect the first tool group in the working space.

[0009] In the CNC machining center as described above, the second telescopic arm includes a second mounting seat and a second driving member connected to the second mounting seat, and the second driving member is used to drive the second mounting seat to move in a vertical direction.

[0010] In the CNC machining center as described above, a mounting frame is provided inside the spindle frame, the second driving member is arranged on the mounting frame, and the output end is installed with a connecting portion on the second mounting seat.

[0011] In the CNC machining center as described above, the machine body further comprises a second working space independently provided from the first working space, and a second spindle and a second tool set are provided in the second working space; The machine body is also provided with a first material rack for storing workpieces in the first working space and a second material rack for storing workpieces in the second working space. After the first spindle cooperates with the first tool group to process the workpiece for the first time, the second spindle can grab the workpiece and carry it into the second working space for a second processing.

[0012] In the CNC machining center as described above, the first spindle and the second spindle are both inverted spindles to clamp the workpiece at the lower side.

[0013] The present invention also provides a built-in detection system, which adopts the above-mentioned built-in tool detection device and built-in workpiece detection device. The built-in detection system causes the first spindle to move in the first working space and approach the first tool group, and then extends the built-in tool detection device from the spindle frame to detect and position the uppermost tool on the first tool group; and by extending the built-in workpiece detection device into the first working space, the workpiece processed in the first working space is detected.

[0014] Implementing the embodiments of the present invention has the following beneficial effects: 1. The present invention provides a CNC machining center, which is provided with a built-in tool detection device and a built-in workpiece detection device in a first working space. The built-in tool detection device is directly arranged on the spindle frame on which the first spindle is installed, and can move with the first spindle and detect the tool group in the working space, while the built-in workpiece detection device can directly detect the workpiece processed in the working space, avoiding the need to transport the workpiece to a designated position outside the working space for detection, thereby shortening the waiting time required for the detection process, and further improving the efficiency of the equipment.

[0015] 2. The built-in detection system mainly detects tools and workpieces in the first working space 101, thereby shortening the time required for the machining center to perform detection work as much as possible to further improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is the structural diagram of the machining center; Figure 2 for Figure 1 Schematic diagram of the internal structure; Figure 3 It is a structural schematic diagram of the workpiece detection device in an extended state; Figure 4 is a schematic diagram of a workpiece detection device; Figure 5 is a schematic diagram of the workpiece detection device in a storage state; Figure 6 It is a schematic diagram of the working state of the workpiece detection device; Figure 7 It is a schematic diagram of the structure of the spindle and the tool group; Figure 8 is a schematic diagram of the storage state of the tool detection device; Fig. 9 It is a schematic diagram of the working state of the tool detection device; Fig.10 for Fig. 9 Schematic diagram of the internal structure; Fig.11 It is a structural schematic diagram of a tool detection device; Fig.12 This is a schematic diagram of the first material rack. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] 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 is provided on the machine body 1, a spindle frame 90 and a first tool group 91 located in the first working space 101 are also provided in the machine body 1, 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 which is arranged on the main shaft frame 90 and can move with the first main shaft 901. The built-in tool detection device can be retracted into the main shaft frame 90 and extend into the first working space 101 when working. The first working space 101 is also provided with a built-in workpiece detection device, which can be retracted into the machine body 1 and extended into the first working space 101 when working. It is provided with a built-in tool detection and a built-in workpiece detection device in the first working space. The built-in tool detection is directly set on the spindle frame where the first spindle is installed, and can move with the first spindle and detect the tool group in the working space, while the built-in workpiece detection device can directly detect the workpiece processed in the working space, avoiding the need to transport the workpiece to a designated location outside the working space for detection, thereby shortening the waiting time required for the detection process, so as to further improve the efficiency of the equipment.

[0020] like Figures 3 to 6 As shown, specifically, in this solution, the specific structure of the built-in workpiece detection device is as follows: it includes a first telescopic arm 21 and a workpiece detection assembly 22 arranged on the first telescopic arm 21, the first telescopic arm 21 can drive the workpiece detection assembly 22 to be stored in the machine body 1, and in the working state, the first telescopic arm 21 extends outward into the first working space 101, so that the workpiece detection assembly 22 detects the workpiece processed in the first working space 101. The use of a built-in workpiece detection assembly avoids the need to transport the workpiece to a designated position outside the first working space for detection, thereby shortening the waiting time required for the detection process, and further improving the efficiency of the equipment.

[0021] Moreover, the present solution can store the workpiece detection assembly in the machine body during the workpiece processing through the telescopic setting, and extend it into the first working space for detection after the processing is completed, thereby not affecting the automated processing in the working space and effectively protecting the workpiece detection assembly. Of course, the present solution also has a second set of workpiece detection devices in the second working space.

[0022] After the improvement of this solution, the equipment can integrate advanced detection technology to achieve seamless connection between processing and detection. It can detect the workpiece size and processing accuracy in real time after the workpiece is processed, and with the highly automated processing center, the data can be fed back to the control system to achieve real-time automatic compensation and adjustment. This built-in direct detection method not only improves the detection efficiency, but also reduces the errors caused by manual intervention, significantly improving the processing accuracy and production efficiency.

[0023] In the embodiment of the present invention, the first telescopic arm 21 is provided to drive the workpiece detection assembly 22 to move, so that it can be stored or extended into the first working space 101 for detection. Of course, through the judgment of the system, it can also be prepared to be extended when the processing work is about to be completed, so as to seamlessly connect the detection to further improve efficiency.

[0024] The storage position of the workpiece detection assembly 22 of the present solution is not limited to the first working space 101 , and can also be set on or outside the machine body. It can also be driven by the first telescopic arm 21 to enter the first working space 101 .

[0025] As a preferred embodiment, the first telescopic arm 21 extends from the inner wall portion 1011 of the first working space 101 to the inside of the first working space 101. It is stored in the inner wall of the first working space 101, which is equivalent to being inside the machine body 1, and makes the structure more compact and the distance is the shortest and the speed is faster when it is in the straight working state, thereby further improving efficiency.

[0026] Specifically, in this embodiment, for the convenience of storage, the inner wall of the machine body 1 located in the first working space 101 has an inner chamber 1012, and in the storage state, the first telescopic arm 21 is retracted into the inner chamber 1012 of the machine body 1, and the inner chamber 1012 has a passage opening 1013 connected to the working space 101. When extended, it directly extends from the passage opening 1013 into the working space, which also shortens the extension distance required by the first telescopic arm 21.

[0027] Furthermore, in the embodiment of the present invention, the inner chamber 1012 not only accommodates the workpiece detection assembly 22 to avoid obstructing the processing in the first working space 101, but also protects the workpiece detection assembly 22 to prevent debris from splashing onto the workpiece detection assembly 22 during processing. Therefore, this solution also provides a blocking structure at the passage opening 1013, and the passage opening 1013 is covered by the blocking structure. When it is necessary to extend outward, it is only necessary to open the passage opening first. The blocking structure can adopt a cover or door structure, and its opening method can be sliding or hinged. In this solution, as a preferred embodiment, a sliding door 1014 is adopted, that is, a sliding door 1014 for blocking the passage opening 1013 is also provided on the inner wall portion 1011 of the working space 101.

[0028] Of course, in the embodiment of the present invention, in conjunction with the inverted first spindle 901, the first telescopic arm 21 drives the workpiece detection assembly 22 to extend 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 assembly 22 is extended, the first spindle 901 only needs to drive the workpiece downward to detect the workpiece.

[0029] Specifically, in the embodiment of the present invention, the specific structure of the built-in workpiece detection device is as follows: the first telescopic arm 21 includes a first mounting seat 211 and a first driving member 212 connected to the first mounting seat 211, and the first driving member 212 is used to drive the first mounting seat 211 to move in a horizontal direction. In this solution, the first mounting seat 211 is a long strip structure, which is equivalent to a telescopic arm, and supports the extended workpiece detection component 22 through its length. It can also be set as a telescopic structure of a sleeve type to achieve the above-mentioned storage or extension.

[0030] Of course, the present solution is directly arranged on the inner wall of the first working space 101, which does not need to be extended too long, and preferably an integral first mounting seat 211 is provided, and the first mounting seat 211 is slidably arranged in the inner chamber 1012. Specifically, a fixed seat 41 located at the lower side of the first mounting seat 211 is provided in the inner chamber 1012, and a slider is provided on the fixed seat 41, and a corresponding guide rail is provided at the lower side of the first mounting seat 211, so that the fixed seat 41 can slidably support the first mounting seat 211, and the slide rail is provided at the first mounting seat 211, which is adapted to its long strip structure, so as to save more space.

[0031] In addition, in order to improve the accuracy, an in-place detection module can be provided to detect whether the first mounting seat 211 is extended or in place. In the present scheme, it can also be centrally provided on the fixed seat 41. The position detection module 42 can use infrared or in-place switches to detect the movement of the first mounting seat 211 to ensure the normal operation of the program.

[0032] In this solution, the first mounting seat 211 is driven to translate by the first driving member 212, which can adopt a power system such as a motor, a cylinder, or a hydraulic system. Of course, the first driving member 212 can directly drive the first mounting seat 211 to translate, or can drive the first mounting seat 211 to translate through a transmission component. Preferably, the first mounting seat 211 can adopt a cylinder, and its output shaft is connected to the first mounting seat 211, so that the structure is simpler and more compact.

[0033] More specifically, the body of the cylinder of this embodiment is installed in the inner chamber 1012 through a fixing member 2121, and its output end is connected to the front side of the first mounting seat 211. Taking this embodiment as an example, a connecting block opposite to the output end of the cylinder is arranged on the first mounting seat 211 for connection.

[0034] In the embodiment of the present invention, the workpiece detection assembly 22 is arranged at the front side of the first mounting seat 211, and the workpiece detection probe 221 extending upward perpendicularly to the first mounting seat 211 is provided on the workpiece detection assembly 22. It is used in conjunction with the inverted first spindle 901, so that the workpiece detection probe 221 can be closer to the workpiece on the spindle after being extended. This solution can detect the size parameters, shape parameters, position parameters, etc. of the workpiece through the workpiece detection probe 221, such as radial size, axial size, aperture size, profile shape, surface flatness, roughness, etc., which can usually be achieved by using a high-precision laser sensor, a contact sensor, a laser scanner or a machine vision system.

[0035] Specifically, in the embodiment of the present invention, the front end of the first mounting seat 211 has a stepped mounting portion 2110 , and the workpiece detection assembly 22 is disposed on the mounting portion 2110 .

[0036] like Figures 7 to 11 As shown, in an embodiment of the present invention, a built-in tool detection device is arranged on the first spindle 901 and can move with the first spindle 901. In this scheme, the built-in type not only means that the tool detection device is built in the first working space 101, but also built in the first spindle 901. It is directly set on the spindle frame on which the first spindle 901 is installed, and can move with the spindle and detect the tool group in the working space, thereby greatly improving efficiency and eliminating the need for an independent setting position on the machine body, and by utilizing the moving range of the spindle, it can approach the tool group in advance before detection to further improve the detection efficiency.

[0037] Specifically, the built-in tool detection device of this scheme includes: a second telescopic arm 31, which is arranged on the main spindle frame 90 and located on one side of the main spindle 9; a tool detection assembly 32, which is arranged on the second telescopic arm 31, and the second telescopic arm 31 can drive the tool detection assembly 32 to be stored in the main spindle frame 90, and when in the working state, the second telescopic arm 31 extends outward into the first working space 101, so that the tool detection assembly 32 detects the first tool group 91 in the first working space 101. Through the telescopic setting, the tool detection assembly can be stored in the main spindle frame during the workpiece processing, and the automated processing in the working space is not affected, and the tool detection assembly is effectively protected.

[0038] In the embodiment of the present invention, the second telescopic arm 31 extends from the lower end of the spindle frame 90 into the working space 101, and is consistent with the direction of the first spindle 901 clamping the workpiece. Moreover, when the second telescopic arm 31 is extended, the tool detection assembly 32 is located on one side of the workpiece and close to the first tool group 91. The setting of its position direction is conducive to quickly locating the position of the spindle to detect the tool group. It can be understood that since the tool directly processes the workpiece on the spindle, this solution moves the spindle to the tool group for processing, and the system needs to determine the initial position of the first spindle 901 and the position of the processing tool head on the tool group. However, this solution directly extends the second telescopic arm 31 from one side of the workpiece, that is, when it is extended, it is already located at the preset position of the spindle 9, and its position is close to the "processing position" of the workpiece, so that the detection procedure can be simplified.

[0039] Therefore, in this solution, the spindle needs to move in the working space. Generally speaking, it has a lateral movement component for horizontal movement and a lifting component 81 for longitudinal movement. It can be understood that in this solution, the spindle frame 90 is arranged on the lifting component 81, and the second telescopic arm 31 is lifted and lowered together with the spindle frame 90. Thus, the second telescopic arm 31 is simplified, that is, the second telescopic arm 31 first moves with the spindle frame 90 to a position close to the tool group 91, and then extends, so the required length of the second telescopic arm 31 can be reduced. In addition, the structure is more compact, and the distance is the shortest and the speed is faster when the spindle is in the straight working state, thereby further improving the efficiency.

[0040] Specifically, in the stowed state, the second telescopic arm 31 is retracted into the main shaft frame 90, and the main shaft frame 90 has an opening connected to the first working space 101. When extended, it directly extends from the opening into the working space, which also shortens the extension distance required by the second telescopic arm 31.

[0041] Furthermore, the second telescopic arm 31 that can be stored in this solution not only avoids obstruction of processing in the first working space 101, but also protects the tool detection assembly 32 to prevent debris from splashing onto the tool detection assembly 32 during processing. Therefore, this solution also provides a cover at the opening, through which the opening is covered, and when it is necessary to extend outward, it is only necessary to open the opening first. In this solution, the spindle frame 90 is also provided with a cover for covering the opening. And the cover can be a baffle 9011 that is opened by rotation or sliding.

[0042] Specifically, in the embodiment of the present invention, the specific structure of the built-in tool detection device is as follows: the second telescopic arm 31 includes a second mounting seat 311 and a second driving member 312 connected to the second mounting seat 311, and the second driving member 312 is used to drive the second mounting seat 311 to move in a vertical direction. The second mounting seat 311 of this solution is a long strip structure, equivalent to a telescopic arm, and supports the extended tool detection assembly 32 through its length. It can also be set as a sleeve-type telescopic structure to achieve the above-mentioned storage or extension.

[0043] This solution is combined with a second mounting seat 311 that is directly set in the tool holder 90, which does not need to be extended too long, and is preferably an integral second mounting seat 311, and the second mounting seat 311 is slidably set in the tool holder 90. Specifically, a second fixed seat located on one side of the second mounting seat 311 is provided in the inner tool holder 90, and a slider is provided on the second fixed seat, and a corresponding guide rail is provided on one side of the second mounting seat 311, so that the second fixed seat can slidably support the second mounting seat 311, and the slide rail is provided at the second mounting seat 311, adapted to its long strip structure, so as to save more space.

[0044] In this solution, the second mounting seat 311 is driven to move vertically by the second driving member 312, which can adopt a power system such as a motor, a cylinder, or a hydraulic system. Of course, the second driving member 312 can directly drive the second mounting seat 311 to move, or can drive the second mounting seat 311 to move through a transmission component. Preferably, the second driving member 312 can adopt a cylinder, and its output shaft is connected to the second mounting seat 311, so that the structure is simpler and more compact.

[0045] More specifically, the main body of the cylinder of this embodiment is installed in the main shaft frame 90 through the mounting frame 3112, and its output end is installed on the connecting part of the second mounting seat 311.

[0046] In the implementation of the present invention, a mounting box 30 may be directly disposed on one side of the spindle frame 90 , so that the tool detection device may be directly assembled in the mounting box 30 .

[0047] In the embodiment of the present invention, the tool detection assembly 32 is arranged at the lower side of the second mounting seat 311, and the tool detection assembly 32 has a multi-directional detection head 320, and the multi-directional detection head 320 at least includes a first detection head 3201 and a second detection head 3202 horizontal to the moving direction of the second mounting seat 311, a third detection head 3203 and a fourth detection head 3204 perpendicular to the moving direction of the second mounting seat 311, and a fifth detection head 3205 perpendicular to the first detection head 3201, the second detection head 3202, the third detection head 3203, and the fourth detection head 3204. Considering that in a machining center, its tool group is generally provided with multiple tools to realize various types of work and processing with different requirements, thus, the blade positions and directions on different tools are all different. This solution sets detection heads in multiple directions so that detection heads with corresponding directions can be adapted according to blades with different directions and orientations on the tool group to meet the use in 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 the front side perpendicular to the up, down, left and right. Such a structure can basically meet the use range of the entire working space.

[0048] Of course, according to usage requirements, the above-mentioned five detection heads can also be installed through the rotating seat 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 seat 3200 to achieve multi-directional and multi-angle detection.

[0049] like Figures 1 to 12 As shown, further, in the embodiment of the present invention, in order to improve the efficiency of multi-faceted processing of a workpiece, the machine body 1 is provided with a first working space 101 and a second working space 102 which are independent of each other; a first spindle 901 and a first tool group 91 are provided in the first working space 101, and a second spindle 902 and a second tool group 92 are provided in the second working space 102. In this solution, the first spindle 901 is used to clamp the workpiece and process it in the first working space 101 through the first tool group 91, and the second spindle 902 is used to clamp the workpiece and process it in the second working space 102 through the second tool group 92, so that the processing in the two working spaces can be performed independently.

[0050] Of course, the second working space 102 is also provided with the above-mentioned independent built-in workpiece detection device and built-in tool detection device.

[0051] Furthermore, 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, and after the first spindle 901 cooperates with the first tool group 91 to process the workpiece for the first time, the workpiece can be grabbed by the second spindle 902 and placed in the second working space 102 for the second processing. The first material rack 903 is used to load the unprocessed or first processed workpiece, and the first spindle 901 grabs and transfers the unprocessed workpiece to the first working space 101 for the first processing, and after the processing, the workpiece after the first processing is placed on the second material rack 904, and the second spindle 902 processes the workpiece after the first processing in the second working space 102 for the second processing, thereby realizing double-sided processing such as front and back on a single device, and the first working space and the second working space are independently set, and the processing on both sides does not interfere with each other, and can be carried out simultaneously, which greatly improves the efficiency.

[0052] Of course, this solution takes the front and back side processing as an example, reflecting that the dual-station linkage machining center can process the front and back sides of the workpiece through independent dual processing spaces, and it can also not be limited to the front and back sides, such as the clamping surface and different types of work, or rough machining and fine machining. Compared with the existing single-arm machining center, there is no need to wait for the workpiece that has been processed for the first time to be flipped over before the second processing, thereby greatly improving efficiency.

[0053] In the embodiment of the present invention, the first spindle 901 rotates after clamping the workpiece to cooperate with the tool on the tool group to process the workpiece, and in this solution, the first spindle 901 and the second spindle 902 are both inverted spindles to clamp the workpiece at the bottom. The inverted spindle setting is used to facilitate chip removal during processing, so that most of the chips do not fall onto the spindle.

[0054] Moreover, the inverted spindle setting, because this scheme adopts the spindle rotation and the spindle movement to drive the workpiece to move to the tool group for processing, and the moving component can be set on the upper side of the spindle, and is not affected by chip removal, so that the structure is simplified. Specifically, the body 1 is also provided with a transverse movement component 82 for driving the first spindle 901 to move horizontally in the first working space 101, and the transverse movement component 82 is also provided with a lifting component 81 for driving the first spindle 901 to move vertically in the first working space 101. The horizontal movement is the Y-axis direction, and the vertical movement is the Z-axis direction. That is, the spindle of this scheme realizes multi-directional movement in the plane through the transverse movement component 82 and the lifting component 81, so that the workpiece clamped on the first spindle 901 can be moved horizontally and lifted close to the first tool group 91. Of course, it is also possible to add a device on the body to drive the entire transverse movement component 82 to move along the X-axis direction perpendicular to the Y-axis direction, so as to realize movement at any position in the overall first working space 101. The structure of the second main axis 902 of this solution is similar to that of the first main axis 901 , and its specific structure may refer to the definition of the first main axis 901 .

[0055] In the embodiment of the present invention, in order to adapt to various processing requirements of the machining center, the first tool group 91 includes a rotating cutter disc and a plurality of machining tools arranged on the rotating cutter disc, and the axis of the rotating cutter disc is perpendicular to the axis of the first spindle 901. The structure of the second tool group 92 of this solution is similar to that of the first tool group 91, and its specific structure can refer to the definition of the first tool group 91.

[0056] In the embodiment of the present invention, the material rack is used to store workpieces. In order to facilitate continuous processing in the first working space, the first working space 101 extends to one side to the upper side of the first material rack 903, and the machine body 1 is located on the upper side of the first material rack 903 and has a feeding port connected to the first working space 101. That is, this solution can realize that the spindle directly grabs the workpiece from the feeding port through the feeding port and cooperates with the moving component on the first spindle, or places the workpiece on the first material rack from the feeding port after processing, thereby shortening the operation time of picking and placing the workpiece and eliminating the need for additional configuration of another handling structure.

[0057] Specifically, in the embodiment of the present invention, the specific structure of the material rack is as follows: the first material rack 903 includes a first frame 9031 located on one side of the machine body 1, and a first transport line 9032 arranged 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 opposite to the first frame 9031, and a second transport line 9032 arranged on the second frame 9041. Moreover, the first frame 9031 is a double-layer frame with upper and lower layers, and the first transport line 9032 is used to drive the workpiece to circulate and transport on the double-layer frame. In order to facilitate taking and placing, part of the first transport line 9032 is opposite to the feeding port, and part of it extends out of the machine body 1, so as to facilitate the staff or the automated production line to replenish materials or transfer processed materials.

[0058] In addition, in this solution, a conveying mechanism may be provided between the first material rack 903 and the second material rack 904, and the conveying mechanism is used to convey the workpiece on the first material rack 903 after the first processing to the second material rack 904. The conveying mechanism may be directly arranged on the machine body, or may be independently arranged outside the machine body, such as on an automated production line, and it may be provided with a manipulator, etc., to facilitate the conveying of the workpiece after the first processing on the first material rack 903 to the second material rack 904 for the second processing. Of course, the conveying mechanism may also be used to change the posture of the workpiece during the conveying process, such as flipping the workpiece so that it can be placed on the second material rack 904 after flipping and wait for the second spindle 902 to directly grab it. Of course, a mechanism for flipping the workpiece may also be provided directly on the second material rack, and the workpiece conveyed to the second material rack may be flipped before entering the second working space.

[0059] The present solution also provides a built-in detection system, wherein the built-in detection system moves the first spindle 901 in the first working space 101 and approaches the first tool group 91, and then extends the built-in tool detection device from the spindle frame 90 to detect and locate the uppermost tool on the first tool group 91; By extending the built-in workpiece detection device into the first working space 101 , the workpiece processed in the first working space 101 is detected.

[0060] Furthermore, the built-in detection system mainly performs detection of tools and workpieces in the first working space 101, thereby shortening the time required for the machining center to perform detection work as much as possible, thereby further improving efficiency.

[0061] For example, this scheme lists a detection method using a built-in tool detection device, which can mainly detect the position of the first spindle and the uppermost tool of the first tool group "that is, the tool used for processing" and the status of the tool. First, the position of the first spindle is obtained "with the center point of the clamped workpiece as a reference", and the system defaults to move to the position before the first tool group 91 is ready for processing. At this time, the tool detection component 32 is extended, and the tool group is positioned, and then the first spindle is moved to contact with the uppermost tool, so as to obtain the exact position of the workpiece and the tool group in contact, so as to correct the corresponding position of the system. Therefore, this scheme can periodically run the detection of the built-in tool detection device after the new tool is replaced or the system is set to work multiple times as a cycle, so as to compensate for the displacement of the first spindle according to the wear of the tool after use. Moreover, the built-in tool detection device is built into the first spindle, and its overall efficiency is higher. Avoid excessive downtime due to periodic detection, which affects the processing progress.

[0062] Similarly, the built-in workpiece detection device can directly detect the processed workpiece, so as to provide timely feedback on the quality of the workpiece processing and adjust the displacement or feedback the tool wear problem in time according to the processing error.

[0063] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0064] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. 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: It comprises a machine body (1), wherein a first working space (101) is provided on the machine body (1), a main shaft frame (90) and a first tool group (91) located in the first working space (101) are also provided in the machine body (1), and a first main shaft (901) is provided on the main shaft frame (90); The machine body (1) is also provided with a built-in tool detection device which is arranged on the main shaft frame (90) and can move with the first main shaft (901); the built-in tool detection device can be retracted into the main shaft frame (90) and extend into the first working space (101) during operation. A built-in workpiece detection device is also provided in the first working space (101); the built-in workpiece detection device can be retracted into the machine body (1) and extended into the first working space (101) during operation.

2. A CNC machining center according to claim 1, characterized in that: The built-in workpiece detection device comprises a first telescopic arm (21) and a workpiece detection component (22) arranged on the first telescopic arm (21); the first telescopic arm (21) can drive the workpiece detection component (22) to be stored in the machine body (1); and when in a working state, the first telescopic arm (21) extends outward into a first working space (101), so that the workpiece detection component (22) detects a workpiece processed in the working space (101).

3. A CNC machining center according to claim 2, characterized in that: The first telescopic arm (21) comprises a first mounting seat (211) and a first driving member (212) connected to the first mounting seat (211), wherein the first driving member (212) is used to drive the first mounting seat (211) to move in a horizontal direction.

4. A built-in workpiece detection device according to claim 3, characterized in that: The workpiece detection component (22) is arranged on the front side of the first mounting seat (211), and a workpiece detection probe (221) extending upwards perpendicularly to the first mounting seat (211) is provided on the workpiece detection component (22).

5. A CNC machining center according to claim 2, characterized in that: The built-in tool detection device comprises: A second telescopic arm (31) is disposed on the main shaft frame (90) and is located on one side of the main shaft (9); The tool detection assembly (32) is arranged on the second telescopic arm (31); the second telescopic arm (31) can drive the tool detection assembly (32) to be stored in the spindle frame (90); and when in a working state, the second telescopic arm (31) extends outward into the first working space (101), so that the tool detection assembly (32) detects the first tool group (91) in the working space (101).

6. A built-in tool detection device according to claim 5, characterized in that: The second telescopic arm (31) comprises a second mounting seat (311) and a second driving member (312) connected to the second mounting seat (311), wherein the second driving member (312) is used to drive the second mounting seat (311) to move in a vertical direction.

7. A built-in tool detection device according to claim 6, characterized in that: A mounting frame (3112) is provided inside the main shaft frame (90), the second driving member (312) is arranged on the mounting frame (3112), and the output end is mounted on the connecting portion of the second mounting seat (311).

8. A CNC machining center according to any one of claims 5 to 7, characterized in that: The machine body (1) further comprises a second working space (102) independently arranged from the first working space (101), wherein a second spindle (902) and a second tool set (92) are arranged in the second working space (102); 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); and after the first spindle (901) cooperates with the first tool assembly (91) to process the workpiece for the first time, the workpiece can be grabbed by the second spindle (902) and placed in the second working space (102) for a second processing.

9. A CNC machining center according to claim 8, characterized in that: The first spindle (901) and the second spindle (902) are both inverted spindles so as to clamp the workpiece on the lower side.

10. A built-in detection system, characterized in that: A built-in tool detection device and a built-in workpiece detection device as claimed in any one of claims 1 to 9, wherein the built-in detection system causes the first spindle (901) to move in the first working space (101) and approach the first tool group (91), and then causes the built-in tool detection device to extend outward from the spindle frame (90), so as to detect and locate the uppermost tool on the first tool group (91); By extending the built-in workpiece detection device into the first working space (101), the workpiece processed in the first working space (101) is detected.

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