Swing head structure and combined machining center

Abstract

The present disclosure provides a swing head structure and a combined machining center, wherein the swing head structure comprises: a housing assembly formed with a mounting cavity; an A-axis driving assembly comprising a torque motor and a mandrel connected with the torque motor, the torque motor being used to drive the mandrel to rotate, the torque motor being arranged in the mounting cavity, and the mandrel being arranged through the housing assembly; and an electric spindle assembly connected with the mandrel, the axis of the mandrel being perpendicular to the axis of the electric spindle assembly. The swing head structure provided by the present disclosure can drive the electric spindle assembly by using the torque motor, without the need to arrange an additional transmission mechanism between the torque motor and the electric spindle assembly, so as to reduce the number of components prone to wear during use of the swing head structure, thereby being conducive to guaranteeing the swing precision of the electric spindle assembly, enhancing the precision maintenance and dynamic characteristics of the swing head structure, and being able to provide protection for the machining quality and efficiency of parts.

Description

Technical Field

[0001] This disclosure relates to the field of machining equipment technology, and in particular to a swivel head structure and a composite machining center. Background Technology

[0002] In the aerospace field, casing-type parts are typically complex rotating bodies with surfaces often featuring curved surfaces, planes, inclined planes, inclined holes, and center holes. These casing-type parts not only require high dimensional accuracy but also demand high shape and positional accuracy between certain features. In related technologies, vertical milling and turning centers are commonly used to machine these casing-type parts. The single-swivel head is one of the key components of a vertical milling and turning center, and its performance directly impacts the machining quality and efficiency.

[0003] However, in practical applications, it has been found that as the usage time of the single swing head increases, the precision of the parts processed by the corresponding machining center decreases, and the processing efficiency also declines, which is not conducive to ensuring the processing quality and efficiency of the aforementioned casing-type parts. Utility Model Content

[0004] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] In view of this, a head-swinging structure is provided according to a first aspect of the present disclosure, comprising: The housing assembly has a mounting cavity. The A-axis drive assembly includes a torque motor and a spindle connected to the torque motor. The torque motor is used to drive the spindle to rotate. The torque motor is disposed in the mounting cavity, and the spindle passes through the housing assembly. An electric spindle assembly is connected to a spindle, with the spindle's axis perpendicular to the axis of the electric spindle assembly.

[0006] In one feasible embodiment, the torque motor includes a rotor section and a stator section disposed around the rotor section, and the A-axis drive assembly further includes: The bearing housing is located inside the mounting cavity and is fixedly connected to the housing assembly. The stator is fixedly mounted on the bearing housing. Roller bearings, the outer ring of the roller bearing is fixedly mounted on the bearing housing, and the inner ring of the roller bearing is fixedly sleeved on the spindle; A rotor positioning sleeve is fitted onto the spindle. One axial end of the rotor positioning sleeve is connected to the inner ring of the roller bearing. The rotor part is fixedly connected to the rotor positioning sleeve and is arranged around the rotor positioning sleeve.

[0007] In one feasible implementation, the A-axis drive assembly further includes: The rotor is fixedly connected to the rotor positioning sleeve via the rotor connecting flange. The roller bearing and the rotor connecting flange are located at opposite ends of the rotor positioning sleeve along the axial direction.

[0008] In one feasible implementation, the A-axis drive assembly further includes: The braking part is located in the bearing housing and is used to brake the spindle. The roller bearing and the braking part are arranged at intervals along the axial direction of the spindle.

[0009] In one feasible implementation, the head-swinging structure further includes: The detection component, located on the mandrel, is used to acquire the angular position information of the mandrel.

[0010] In one feasible implementation, the detection component includes: The mounting base is fixedly installed at the end of the spindle away from the electric spindle assembly; The mounting plate is fitted onto the mounting base, and the mounting plate and the mounting base form a mounting groove, with the groove opening facing away from the spindle. A sealing cap, detachably mounted on the mounting plate, is used to open or cover the opening of the mounting slot; The encoder, mounted on the mounting base and located in the mounting slot, is used to acquire the angular position information of the spindle.

[0011] In one feasible implementation, the mandrel has a pipeline channel, and the mounting base has a clearance channel that communicates with the pipeline channel.

[0012] In one feasible implementation, the housing assembly includes: There are two mounting columns and two A-axis drive assemblies. The two mounting columns are arranged in parallel and each mounting column forms a mounting cavity. The A-axis drive assemblies are arranged in a one-to-one correspondence with the mounting columns. A connecting beam connects two mounting columns; The spindles of the two A-axis drive assemblies are arranged coaxially, and the electric spindle assembly is connected between the spindles of the two A-axis drive assemblies.

[0013] In one feasible implementation, the electric spindle assembly includes: The spindle housing is connected to the spindle; The electric spindle body is located in the spindle housing, and the axis of the spindle is perpendicular to the axis of the electric spindle body; The connecting plate is located on the electric spindle body and is used to connect the angle head.

[0014] A composite machining center is provided according to a second aspect of the embodiments of this disclosure, comprising: Such as the head-swinging structure proposed in any of the first aspects above.

[0015] The above description is merely an overview of the technical solution provided in this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other features and effects of this disclosure more obvious and understandable, the following are specific examples of the implementation methods of this disclosure. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic structural diagram of a head-swinging structure according to an embodiment of the present disclosure; Figure 2 This is a schematic exploded structural diagram of a head-swinging structure according to an embodiment of the present disclosure; Figure 3 This is a schematic cross-sectional view of a swing head structure according to an embodiment of the present disclosure; Figure 4 This is a schematic structural diagram of a connection disk according to an embodiment of the present disclosure.

[0017] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100. Shell assembly; 110. Mounting column; 120. Connecting beam; 200. A-axis drive assembly; 210. Torque motor; 211. Rotor section; 212. Stator section; 220. Spindle; 230. Bearing housing; 240. Roller bearing; 250. Rotor positioning sleeve; 260. Rotor connecting flange; 270. Braking unit; 300. Electric spindle assembly; 310. Spindle housing; 320. Electric spindle body; 330. Connecting plate; 400. Detection component; 410. Mounting base; 420. Mounting plate; 430. Sealing cover; 440. Encoder; 500° Angle Head; 101. Mounting cavity; 201. Pipeline channel; 401. Mounting groove; 402. Clearance channel; 501. Pull claw; 502. Locking interface; 503. Releasing interface; 504. Air curtain interface; 505. Claw interface; 506. Claw release interface; 507. External cooling interface. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] It should be noted that aerospace-grade casing parts are typically complex rotating parts with surfaces often featuring curved surfaces, planes, inclined planes, inclined holes, and center holes. These casing parts not only require high dimensional accuracy but also demand high shape and positional accuracy between certain features. In related technologies, vertical milling and turning centers are commonly used to machine these casing parts. The single-swivel head is one of the key components of a vertical milling and turning center, and its performance directly impacts the machining quality and efficiency.

[0020] However, in related technologies, single-swivel heads mostly use worm gear or gear mechanisms for transmission when driving electric spindles. As the single-swivel head is used for a long time, the aforementioned transmission mechanisms are prone to severe wear, resulting in reduced accuracy of parts processed by the machining center corresponding to the single-swivel head and a decline in processing efficiency. This not only affects and limits the accuracy retention and dynamic characteristics of the single-swivel head, but also makes it difficult to ensure the processing quality and efficiency of the machining center for the aforementioned casing-type parts.

[0021] In view of this, such as Figures 1 to 4 As shown, a swivel head structure is provided according to a first aspect of the present disclosure, comprising: a housing assembly 100 having a mounting cavity 101; an A-axis drive assembly 200 including a torque motor 210 and a spindle 220 connected to the torque motor 210, the torque motor 210 being used to drive the spindle 220 to rotate, the torque motor 210 being disposed within the mounting cavity 101, and the spindle 220 passing through the housing assembly 100; and an electric spindle assembly 300 connected to the spindle 220, the axis of the spindle 220 being perpendicular to the axis of the electric spindle assembly 300.

[0022] The oscillating head structure provided in this embodiment includes the aforementioned housing assembly 100, A-axis drive assembly 200, and electric spindle assembly 300. The housing assembly 100 has a mounting cavity 101, and the torque motor 210 of the A-axis drive assembly 200 is disposed within the mounting cavity 101. Thus, the oscillating head structure can utilize the housing assembly 100 to provide structural protection for the torque motor 210, which helps reduce the probability of damage to the torque motor 210 and extends its service life. The spindle 220 of the A-axis drive assembly 200 is connected to the torque motor 210 and can rotate under the drive of the torque motor 210. The electric spindle assembly 300 is connected to the spindle 220, and the axis of the electric spindle assembly 300 is perpendicular to the axis of the spindle 220. Based on this, on the one hand, when the torque motor 210 drives the spindle 220 to rotate, it can drive the electric spindle assembly 300 to swing, that is, adjust the axial direction of the electric spindle assembly 300; on the other hand, the torque motor 210 can drive the electric spindle assembly 300 through the spindle 220, without the need to set an additional transmission mechanism between the torque motor 210 and the electric spindle assembly 300, thereby reducing the number of parts that are prone to wear during use, which helps to ensure the swing accuracy of the electric spindle assembly 300, enhances the accuracy retention and dynamic characteristics of the swing head structure, and can provide a guarantee for the processing quality and efficiency of parts.

[0023] It should be noted that, in practical applications, the aforementioned oscillating head structure can be installed in a composite machining center or used as a component of a composite machining center. The aforementioned composite machining center can be a vertical composite machining center or a horizontal composite machining center; for example, the aforementioned machining center can be a vertical turning-milling composite machining center. Taking the aforementioned swivel head structure as a component of a composite machining center as an example, the aforementioned housing assembly 100 can be mounted on the drive component of the aforementioned composite machining center, so that the swivel head structure can move under the drive of the aforementioned drive component; the aforementioned electric spindle assembly 300 can be used to connect the angle head 500, which can be, but is not limited to, a turning angle head 500, a milling angle head 500, and a measuring angle head 500. When the aforementioned angle head 500 is a turning angle head 500 or a milling angle head 500, the electric spindle assembly 300 can transmit cutting torque to the angle head 500 so that the tool mounted on the angle head 500 can perform cutting machining on the workpiece; the driving direction of the aforementioned drive component on the swivel head structure can be a straight line or an arc, so that with the cooperation of the drive component and the swivel head structure, the position and orientation of the angle head 500 can be adjusted more flexibly, so that the composite machining center can perform machining or measurement of workpieces with complex shapes.

[0024] It is understood that the electric spindle assembly 300 is located outside the aforementioned mounting cavity 101 so that the electric spindle assembly 300 can be docked with the aforementioned angle head 500 in actual application; correspondingly, part of the spindle 220 is located inside the aforementioned mounting cavity 101 and connected to the torque motor 210, and part of the spindle 220 is located outside the mounting cavity 101 and connected to the electric spindle assembly 300.

[0025] It is understood that the torque motor 210 is a wide speed range motor with soft mechanical characteristics. When the load increases, the speed of the motor output shaft decreases while the output torque increases to maintain balance with the load. Furthermore, the torque motor 210 can output high torque, thus requiring less of a transmission mechanism such as a worm gear or gear mechanism for speed reduction and torque amplification during power output. It is suitable for direct connection and driving of the driven object. The aforementioned torque motor 210 may include a rotor portion 211 and a stator portion 212 surrounding the rotor portion 211. When the torque motor 210 is running, the rotor portion 211 can rotate relative to the stator portion 212. The stator portion 212 can be fixedly disposed in the aforementioned housing assembly 100 and located within the aforementioned mounting cavity 101. The aforementioned spindle 220 can be fixedly connected between the aforementioned rotor portion 211 and the aforementioned electric spindle assembly 300. Therefore, in the force transmission path between the torque motor 210 and the electric spindle assembly 300, the spindle 220 and the electric spindle assembly... 300 can be considered as a single unit. The spindle 220 can drive the electric spindle assembly 300 to move synchronously. Based on this, the torque motor 210 can drive the electric spindle assembly 300 through the spindle 220. There is no need to set up an additional transmission mechanism between the torque motor 210 and the electric spindle assembly 300. This can reduce the number of parts that are prone to wear during the use of the oscillating head structure, thereby helping to ensure the oscillation accuracy of the electric spindle assembly 300, enhancing the accuracy retention and dynamic characteristics of the oscillating head structure, and providing a guarantee for the processing quality and efficiency of parts.

[0026] In some feasible examples, the A-axis drive assembly 200 is detachably connected to the housing assembly 100, and the electric spindle assembly 300 is detachably connected to the A-axis drive assembly 200, thereby enabling modularity of the oscillating head structure, which is beneficial to improving the ease of disassembly and assembly and the ease of debugging of the oscillating head structure.

[0027] like Figure 3As shown, in some examples, the torque motor 210 includes a rotor portion 211 and a stator portion 212 disposed around the rotor portion 211. The A-axis drive assembly 200 further includes: a bearing housing 230 disposed within the mounting cavity 101, the bearing housing 230 being fixedly connected to the housing assembly 100, and the stator portion 212 being fixedly disposed in the bearing housing 230; a roller bearing 240, the outer ring of which is fixedly disposed in the bearing housing 230, and the inner ring of which is fixedly sleeved on the spindle 220; and a rotor positioning sleeve 250 sleeved on the spindle 220, one axial end of which is connected to the inner ring of the roller bearing 240, the rotor portion 211 being fixedly connected to the rotor positioning sleeve 250, and the rotor portion 211 being disposed around the rotor positioning sleeve 250.

[0028] In this technical solution, the A-axis drive assembly 200 may further include the aforementioned bearing housing 230, the aforementioned roller bearing 240, and the aforementioned rotor positioning sleeve 250. Based on the aforementioned configuration, on the one hand, the housing assembly 100 can support the spindle 220 through the bearing housing 230 and the roller bearing 240, which is beneficial to improving the installation stability and reliability of the spindle 220, ensuring the smooth rotation of the spindle 220, and the bearing housing 230 can be used to fix the aforementioned stator 212, avoiding the need for a separate fixing structure for the stator 212, which is beneficial to improving the compactness of the oscillating head structure and enhancing the lightweight level of the oscillating head structure; on the other hand, the rotor positioning sleeve 250 can be coaxially arranged with the spindle 220 and the aforementioned roller bearing 240, and can provide support for the spindle 220. The aforementioned rotor section 211 is radially positioned, thereby improving the coaxiality between the rotor section 211 and the spindle 220, enhancing the fitting accuracy between the torque motor 210 and the spindle 220, which is beneficial for the torque motor 210 to drive the spindle 220 more stably and accurately, thereby improving the motion accuracy of the electric spindle assembly 300, providing further assurance for machining accuracy and efficiency. Furthermore, the rotor section 211 can apply driving torque to the spindle 220 through the aforementioned rotor positioning sleeve 250 and the inner ring of the aforementioned roller bearing 240, providing power for the oscillation of the electric spindle assembly 300.

[0029] It is understandable that the aforementioned roller bearing 240 and the aforementioned rotor positioning sleeve 250 can be located within the aforementioned mounting cavity 101, which helps to reduce the maintenance cost of the roller bearing 240 and extend the service life of the roller bearing 240 and the rotor positioning sleeve 250.

[0030] It is understood that one axial end of the aforementioned stator portion 212 can be fixedly mounted on the aforementioned bearing seat 230, and the outer peripheral wall of the aforementioned stator portion 212 can be fixedly mounted on the aforementioned housing assembly 100. This expands the support points of the housing assembly 100 for the stator portion 212, which is beneficial to further improve the installation stability of the stator portion 212 and provide a more reliable guarantee for the torque motor 210 to drive the spindle 220 stably and accurately.

[0031] For example, the aforementioned roller bearing 240 may be, but is not limited to, a crossed roller bearing.

[0032] like Figure 3 As shown, in some examples, the A-axis drive assembly 200 further includes: a rotor connecting flange 260, the rotor portion 211 being fixedly connected to the rotor positioning sleeve 250 via the rotor connecting flange 260, and the roller bearing 240 and the rotor connecting flange 260 being located at opposite ends of the rotor positioning sleeve 250 in the axial direction.

[0033] In this technical solution, the A-axis drive assembly 200 may further include the aforementioned rotor connecting flange 260. Based on the aforementioned configuration, the rotor positioning sleeve 250 can be fixedly connected between the roller bearing 240 and the rotor connecting flange 260 to establish a fixed connection between the rotor portion 211 and the rotor positioning sleeve 250. Correspondingly, the rotor portion 211 can transmit power to the rotor positioning sleeve 250 through the rotor connecting flange 260, thereby driving the electric spindle assembly 300 to swing. Furthermore, by setting the roller bearing 240 and the rotor connecting flange 260 to be located at opposite ends of the axial direction of the rotor positioning sleeve 250, the power input side and power output side of the rotor positioning sleeve 250 can be located at opposite ends of its axial direction, which can improve the force balance of the rotor positioning sleeve 250, improve the force distribution of the rotor positioning sleeve 250, and help improve the structural stability of the rotor positioning sleeve 250. This provides a guarantee for the stable and reliable transmission of power by the rotor positioning sleeve 250, and can further enhance the driving stability and accuracy of the torque motor 210 to the electric spindle assembly 300.

[0034] For example, one axial end of the rotor connecting flange 260 can be fixedly disposed at one axial end of the rotor portion 211, and the other axial end of the rotor portion 211 can be arranged opposite to the bearing housing 230. Thus, the rotor connecting flange 260 can rotate synchronously with the rotor portion 211 and can cooperate with the bearing housing 230 to constrain the axial position of the rotor portion 211, which helps to improve the installation accuracy of the rotor portion 211. It is understood that an axial clearance is formed between the rotor portion 211 and the bearing housing 230.

[0035] like Figure 3 As shown, in some examples, the A-axis drive assembly 200 further includes a braking part 270 disposed in the bearing housing 230, the braking part 270 being used to brake the spindle 220, and the roller bearing 240 and the braking part 270 being arranged axially spaced along the spindle 220.

[0036] In this technical solution, the A-axis drive assembly 200 may further include the aforementioned braking unit 270. Based on the aforementioned configuration, the A-axis drive assembly 200 can use the braking unit 270 to brake or release the rotational braking of the spindle 220. Correspondingly, when the braking unit 270 brakes the spindle 220, the braking unit 270 can apply a braking torque to the spindle 220 so that the electric spindle assembly 300 can be maintained at a certain angular position, thereby facilitating the fixed-angle machining of the workpiece. Furthermore, by arranging the roller bearing 240 and the braking unit 270 at intervals along the axial direction of the spindle 220, the stress points of the spindle 220 can be distributed axially, which is beneficial to improving the stress balance of the spindle 220 and enhancing the stability and reliability of the spindle 220.

[0037] Understandably, the brake unit 270 can be housed within the mounting cavity 101, which helps reduce the risk of damage to the brake unit 270 and extend its service life.

[0038] For example, the aforementioned braking unit 270 may be, but is not limited to, a pneumatic clamp.

[0039] like Figure 3 As shown, in some examples, the oscillating head structure also includes a detection component 400, which is disposed on the spindle 220 and is used to obtain the angular position information of the spindle 220.

[0040] In this technical solution, the oscillating head structure may further include the aforementioned detection component 400. Based on the aforementioned configuration, the oscillating head structure can utilize the detection component 400 to obtain the angular position information of the spindle 220, thereby facilitating the determination of the angular position of the electric spindle assembly 300 based on the aforementioned angular position information, which is beneficial for achieving precise control of the oscillation angle of the electric spindle assembly 300.

[0041] Understandably, the detection component 400 can be housed within the mounting cavity 101, which helps reduce the risk of damage to the detection component 400 and extend its service life.

[0042] like Figure 3 As shown, in some examples, the detection component 400 includes: a mounting base 410, fixedly disposed at one end of the spindle 220 away from the electric spindle assembly 300; a mounting plate 420, sleeved on the mounting base 410, the mounting plate 420 and the mounting base 410 forming a mounting groove 401, the opening of the mounting groove 401 being opposite to the spindle 220; a sealing cover 430, detachably disposed on the mounting plate 420, the sealing cover 430 being used to open or cover the opening of the mounting groove 401; and an encoder 440, disposed on the mounting base 410 and located within the mounting groove 401, for acquiring angular position information of the spindle 220.

[0043] In this technical solution, the detection component 400 may include the aforementioned mounting base 410, the aforementioned mounting plate 420, the aforementioned sealing cover 430, and the aforementioned encoder 440. Based on the aforementioned configuration, the detection component 400 can accommodate the encoder 440 using the mounting groove 401 formed by the mounting base 410 and the mounting plate 420, thereby improving the installation stability of the encoder 440. The aforementioned sealing cover 430 can either open or cover the opening of the mounting groove 401, facilitating maintenance of the encoder 440 and improving the sealing performance of the mounting groove 401, thus reducing the likelihood of damage to the encoder 440. The mounting base 410 can rotate synchronously with the spindle 220, driving the encoder 440 to rotate synchronously as well, enabling the encoder 440 to acquire the aforementioned angular position information. Furthermore, by fixing the mounting base 410 to the end of the spindle 220 away from the electric spindle assembly 300 and arranging the opening of the mounting groove 401 away from the spindle 220, the detection component 400 can be positioned relatively far from the electric spindle assembly 300, thereby reducing the likelihood of interference between the detection component 400 and other structures and facilitating the installation and removal of the sealing cover 430.

[0044] like Figure 3 As shown, in some examples, the spindle 220 has a pipeline channel 201, and the mounting base 410 has a clearance channel 402 that communicates with the pipeline channel 201.

[0045] In this technical solution, the spindle 220 and the mounting base 410 can respectively have the aforementioned pipeline channel 201 and the aforementioned clearance channel 402. Based on the aforementioned configuration, the oscillating head structure can easily utilize the aforementioned pipeline channel 201 to pass through cable, gas-liquid pipeline and other pipeline structures in practical applications, so that the electric spindle assembly 300 can receive power, control signals, pressure fluid media, etc. in practical applications; the mounting base 410, based on the aforementioned clearance channel 402, can reduce the obstruction of the aforementioned pipeline channel 201 and provide a transition path for the aforementioned pipeline structure to pass through the pipeline channel 201, improving the convenience of threading the aforementioned pipeline structure.

[0046] For example, the aforementioned clearance channel 402 and the aforementioned pipeline channel 201 are arranged coaxially, and the diameters of the aforementioned clearance channel 402 and the aforementioned pipeline channel 201 are the same; based on this, the obstruction of the mounting base 410 on the pipeline channel 201 can be further reduced, and it is beneficial to improve the utilization rate of the internal space of the pipeline channel 201, facilitate the dispersed arrangement of pipeline structures, and reduce the risk of entanglement between pipeline structures.

[0047] like Figures 1 to 3As shown, in some examples, the housing assembly 100 includes: two mounting posts 110, two A-axis drive assemblies 200, the two mounting posts 110 are arranged in parallel and each mounting post 110 forms a mounting cavity 101, and the A-axis drive assemblies 200 are arranged in a one-to-one correspondence with the mounting posts 110; a connecting beam 120 is connected between the two mounting posts 110; wherein, the spindles 220 of the two A-axis drive assemblies 200 are arranged coaxially, and the electric spindle assembly 300 is connected between the spindles 220 of the two A-axis drive assemblies 200.

[0048] In this technical solution, the housing assembly 100 may include the aforementioned mounting column 110 and the aforementioned connecting beam 120. Based on the aforementioned arrangement, the housing assembly 100 can accommodate two A-axis drive assemblies 200, and the two A-axis drive assemblies 200 can be arranged symmetrically. Accordingly, the oscillating head structure can use the two A-axis drive assemblies 200 to drive the electric spindle assembly 300, which is beneficial to further improve the oscillation stability of the electric spindle assembly 300 and provide a guarantee for the precise control of the electric spindle assembly 300.

[0049] For example, the aforementioned housing assembly 100 has a U-shaped structure.

[0050] For example, when the oscillating head structure includes the aforementioned detection component 400, the number of the aforementioned detection component 400 can be one, and the detection component 400 is disposed on the spindle 220 of one of the two A-axis drive components 200.

[0051] like Figure 1 and Figure 2 As shown, in some examples, the electric spindle assembly 300 includes: a spindle housing 310 connected to the spindle 220; an electric spindle body 320 disposed in the spindle housing 310, the axis of the spindle 220 being perpendicular to the axis of the electric spindle body 320; and a connecting disc 330 disposed in the electric spindle body 320 for connecting the angle head 500.

[0052] In this technical solution, the electric spindle assembly 300 may include the aforementioned spindle housing 310, the aforementioned electric spindle body 320, and the aforementioned connecting plate 330. Based on the aforementioned configuration, when the torque motor 210 is running, the spindle 220 can drive the aforementioned spindle housing 310 to swing, so that the electric spindle body 320 and the connecting plate 330 swing synchronously, thereby realizing the position adjustment of the angle head 500 and the tool or measuring instrument mounted on it.

[0053] For example, the electric spindle body 320 is formed with a flange structure, one end of which is connected to the spindle housing 310 and the other end is connected to the connecting plate 330.

[0054] For example, the aforementioned connecting plate 330 is provided with multiple pull claws 501, which are used to tighten or release the aforementioned angle head 500 to realize the assembly and disassembly of the angle head 500. The aforementioned connecting plate 330 also has multiple interfaces, which may include, but are not limited to, a locking interface 502, a loosening interface 503, an air curtain interface 504, a tool gripping interface 505, a tool releasing interface 506, and an external cooling interface 507. The aforementioned angle head 500 may also have multiple interfaces, and the interfaces of the connecting plate 330 are used to communicate one-to-one with the interfaces of the angle head 500. The aforementioned multiple interfaces are used for the flow of pressure fluid medium. Based on this, it is convenient for the electric spindle assembly 300 to deliver the aforementioned pressure fluid medium to the angle plate, so that the angle plate can perform corresponding process actions, so that the angle head 500 can perform workpiece processing or measurement.

[0055] In some feasible examples, the swivel head structure may include multiple angle heads 500, including at least one turning angle head 500, at least one milling angle head 500, and at least one measuring angle head 500. The multiple angle heads 500 can be alternatively connected to the aforementioned connecting plate 330. Based on this, in practical applications, the corresponding angle heads 500 can be installed on the aforementioned connecting plate 330 according to the processing requirements, so that the composite machining center to which the swivel head structure belongs can perform turning, milling, or measuring on the workpiece.

[0056] It is understandable that the aforementioned claw 501 can be hydraulic in practical applications, that is, the aforementioned claw 501 can be a hydraulic tensioning mechanism.

[0057] Based on this, this disclosure achieves fully automatic, fast, and reliable exchange of various angle heads 500 for turning, milling, and measuring through highly integrated multi-functional interface technology, thereby enabling the construction of a relatively complete processing and inspection unit on a single device.

[0058] This disclosure discloses a quick-connect coupling assembly integrating hydraulic, pneumatic, and cooling functions between the connecting plate 330 and the replaceable angle head 500, and modularizes and integrates the corresponding media supply channels into a single interface. Through a hydraulic tensioning mechanism on the connecting plate 330, high-strength tension is achieved between the angle head 500 and the connecting plate 330, ensuring instantaneous connection of corresponding hydraulic, pneumatic, and coolant pipelines via the quick-connect coupling, as well as torque transmission between the electric spindle body 320 and the angle head 500.

[0059] For example, the power output end of the electric spindle body 320 is provided with a first taper shank, and the power input end of the angle head 500 is provided with a second taper shank. The first taper shank is detachably connected to the second taper shank. When the first taper shank is connected to the second taper shank, the electric spindle body 320 can transmit cutting torque to the angle head 500 through the aforementioned first taper shank and the aforementioned second taper shank.

[0060] According to a second aspect of the present disclosure, a composite machining center is provided, comprising: a swivel head structure as described in any of the first aspects above.

[0061] Since the composite machining center provided in this embodiment includes the oscillating head structure as proposed in any of the first aspects above, it possesses all the beneficial effects of the oscillating head structure, which will not be elaborated here.

[0062] In this disclosure, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0063] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0064] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A head-swinging structure, characterized in that, include: The housing assembly has a mounting cavity. The A-axis drive assembly includes a torque motor and a spindle connected to the torque motor. The torque motor is used to drive the spindle to rotate. The torque motor is disposed in the mounting cavity, and the spindle passes through the housing assembly. An electric spindle assembly is connected to the mandrel, the axis of which is perpendicular to the axis of the electric spindle assembly.

2. The oscillating head structure according to claim 1, characterized in that, The torque motor includes a rotor section and a stator section disposed around the rotor section, and the A-axis drive assembly further includes: A bearing housing is disposed within the mounting cavity, and the bearing housing is fixedly connected to the housing assembly. The stator portion is fixedly disposed within the bearing housing. A roller bearing, wherein the outer ring of the roller bearing is fixedly disposed on the bearing housing, and the inner ring of the roller bearing is fixedly sleeved on the mandrel; A rotor positioning sleeve is fitted onto the mandrel. One axial end of the rotor positioning sleeve is connected to the inner ring of the roller bearing. The rotor portion is fixedly connected to the rotor positioning sleeve, and the rotor portion is arranged around the rotor positioning sleeve.

3. The oscillating head structure according to claim 2, characterized in that, The A-axis drive assembly also includes: The rotor is fixedly connected to the rotor positioning sleeve via the rotor connecting flange, and the roller bearing and the rotor connecting flange are located at opposite ends of the rotor positioning sleeve in the axial direction.

4. The oscillating head structure according to claim 2, characterized in that, The A-axis drive assembly also includes: A braking part is disposed in the bearing housing, the braking part is used to brake the mandrel, and the roller bearing and the braking part are arranged axially spaced along the mandrel.

5. The oscillating head structure according to claim 1, characterized in that, Also includes: A detection component is disposed on the mandrel and is used to acquire the angular position information of the mandrel.

6. The oscillating head structure according to claim 5, characterized in that, The detection component includes: The mounting base is fixedly disposed at the end of the spindle away from the electric spindle assembly; A mounting plate is fitted onto the mounting base, and the mounting plate and the mounting base form a mounting groove, with the opening of the mounting groove facing away from the spindle. A sealing cap is detachably disposed on the mounting plate, the sealing cap being used to open or cover the opening of the mounting groove; An encoder is disposed on the mounting base and located within the mounting slot, and is used to acquire the angular position information of the mandrel.

7. The oscillating head structure according to claim 6, characterized in that, The mandrel has a pipeline channel, and the mounting base has a clearance channel that communicates with the pipeline channel.

8. The oscillating head structure according to any one of claims 1 to 7, characterized in that, The housing assembly includes: The mounting posts and the A-axis drive assembly are both two in number. The two mounting posts are arranged in parallel and each of the two mounting posts forms a mounting cavity. The A-axis drive assembly is arranged in a one-to-one correspondence with the mounting posts. A connecting beam connects the two mounting columns; The spindles of the two A-axis drive assemblies are arranged coaxially, and the electric spindle assembly is connected between the spindles of the two A-axis drive assemblies.

9. The oscillating head structure according to any one of claims 1 to 7, characterized in that, The electric spindle assembly includes: The spindle housing is connected to the spindle; An electric spindle body is disposed in the spindle housing, and the axis of the spindle is perpendicular to the axis of the electric spindle body; A connecting plate is disposed on the electric spindle body, and the connecting plate is used to connect the angle head.

10. A composite machining center, characterized in that, include: The oscillating structure as described in any one of claims 1 to 9.

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