Turret device and machine tool

Abstract

The invention relates to a turret device and a machine tool, and the turret device comprises a turntable which is provided with a rotating axis and a plurality of mounting stations which are uniformly distributed around the rotating axis at intervals in the circumferential direction; a plurality of working parts, each mounting station is provided with one working part, and the plurality of working parts at least comprise a measuring part and a cutter part; in the plurality of mounting stations, at least one mounting station is provided with a cutter component, and at least another mounting station is provided with a measuring component; and the driving part is provided with an output end, the output end is in driving connection with the rotating disc so that the rotating disc can rotate around the rotating axis, and the rotating disc rotates by the same angle so that the working parts on the mounting stations can be aligned with the workpieces on the same machining station in sequence. Through the technical scheme provided by the invention, the problem that the control logic of the driving part is relatively complex due to different rotating angles of the turntable and frequently-changed rotating angle requirements when the tower device is switched from the current operation to the next operation in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tools, in particular to a turret device and a machine tool. BACKGROUND

[0002] The turret device of the machine tool is usually integrated with a tool component and a measuring component on the rotating disc. The tool component is used for machining a workpiece, and the measuring component is used for measuring the structural parameters of the workpiece to ensure the machining precision and quality. When machining the workpiece, the rotating disc is driven by a driving member to switch the turret device from the current operation to the next operation.

[0003] In the related art, when the turret device switches from the current operation to the next operation, the rotating angle of the rotating disc is different. The frequent change of the rotating angle makes the control logic of the driving member more complex. SUMMARY

[0004] Therefore, it is necessary to provide a turret device and a machine tool to solve the problem that the rotating angle of the rotating disc is different when the turret device switches from the current operation to the next operation, and the frequent change of the rotating angle makes the control logic of the driving member more complex.

[0005] In one aspect, the present application provides a turret device, which comprises:

[0006] The rotating disc has a rotating axis and a plurality of mounting stations, and the plurality of mounting stations are uniformly distributed around the circumference of the rotating axis;

[0007] The plurality of working components are provided on the plurality of mounting stations, and the plurality of working components at least include a measuring component and a tool component. The measuring component is used for measuring the structural parameters of the workpiece on the machining station, and the tool component has a tool head, and each tool head is used for machining the workpiece on the machining station. Among the plurality of mounting stations, at least one mounting station is provided with the tool component, and at least another mounting station is provided with the measuring component;

[0008] The driving member has an output end, and the output end is drivingly connected with the rotating disc to rotate the rotating disc around the rotating axis. The rotating disc rotates by the same angle to sequentially align the working components on the plurality of mounting stations with the workpiece on the same machining station.

[0009] In one embodiment, the tool component is provided with at least two tool components, and the types and / or rotating speeds of the at least two tool components are different.

[0010] In one of the embodiments, the number of installation stations is four, the plurality of working components includes three cutter components and one measuring component, one cutter component is installed in each of three installation stations, and the measuring component is installed in the other installation station; each cutter component includes a tool holder and a tool head arranged at one end of the tool holder in the extension direction, the tool holder is arranged on the rotary disc, and the tool head protrudes outward beyond the outer periphery of the rotary disc; the extension directions of the tool holders of two adjacent cutter components are perpendicular in the circumferential direction of the rotary axis.

[0011] In one of the embodiments, the measuring component includes:

[0012] a measuring head movably arranged relative to the rotary disc in a first direction; the extension directions of the tool holders of two cutter components adjacent to the measuring head in the circumferential direction of the rotary disc are respectively perpendicular to the first direction.

[0013] In one of the embodiments, the turret device further includes:

[0014] a rotation angle detection member for detecting the rotation angle of the rotary disc, the rotation angle detection member is in communication connection with the driving member, and the driving member stops driving when the rotation angle detection member detects that the rotary disc rotates by a preset angle.

[0015] In one of the embodiments, the driving member includes a body portion and an output end, the output end is rotatably arranged relative to the body portion, and the turret device further includes:

[0016] a bearing having a first ring body and a second ring body in relative rotation, the first ring body is fixed relative to the body portion, and the output end and the rotary disc are both fixedly connected with the second ring body;

[0017] The rotation angle detection member includes an angle encoder, the angle encoder includes an encoder body and an encoder rotating shaft, the encoder body is fixed relative to the body portion of the driving member, the encoder rotating shaft is rotatably arranged relative to the encoder body, and the encoder rotating shaft rotates synchronously with the rotary disc.

[0018] In one of the embodiments, the turret device further includes:

[0019] a brake assembly in communication connection with the rotation angle detection member, and the brake assembly applies a braking force to at least one of the second ring body and the rotary disc when the rotation angle detection member detects that the rotary disc rotates by a preset angle.

[0020] In one of the embodiments, the brake assembly includes:

[0021] a brake pad arranged on the second ring body;

[0022] a brake disc base fixed relative to the body portion of the driving member and spaced apart from the brake pad in the axial direction of the bearing;

[0023] The brake disc body is arranged on the brake disc base near the brake pad and is movably arranged along the axial direction of the bearing relative to the brake disc base to contact or separate from the brake pad.

[0024] In one embodiment, the driving member is a cylindrical structure with open ends along the axial direction of the output end of the driving member; the turret device further comprises:

[0025] The fixed component comprises a support part, a connecting part and a peripheral part, the support part and the peripheral part are arranged on the same side of the connecting part, and the peripheral part is annularly arranged outside the support part; the support part, the peripheral part and the connecting part enclose an annular cavity, the annular cavity is open on the side away from the connecting part, the driving member is arranged in the annular cavity away from the rotating disc, the brake disc base is arranged on the end of the support part away from the connecting part, and the encoder body is arranged on the brake disc base, and the encoder rotating shaft is located on the end of the encoder body away from the brake disc base and is fixedly connected with the second ring body.

[0026] In one embodiment, the bearing is annularly arranged outside at least part of the brake assembly along the axial direction of the bearing, and / or the bearing is annularly arranged outside at least part of the rotation angle detection member.

[0027] In one embodiment, the driving member comprises a torque motor, the torque motor comprises a stator and a rotor, the rotor is rotatably arranged relative to the stator, and the rotor is drivingly connected with the rotating disc; or,

[0028] Along the rotation axis direction of the rotating disc, the rotating disc has oppositely arranged first and second sides, each working component is located on the first side of the rotating disc, and the driving member and the rotation angle detection member are located on the second side of the rotating disc.

[0029] In another aspect, the application further provides a machine tool, which comprises:

[0030] A bed body;

[0031] A worktable device arranged on the bed body, the worktable device being used for fixing a workpiece;

[0032] The turret device of any one of the above embodiments is movably arranged relative to the bed body to approach or move away from the worktable device, the measuring component of the turret device is used for detecting a structural parameter of the workpiece, and the tool component is used for machining the workpiece.

[0033] The turret device, by uniformly distributing each installation station along the circumferential direction of the rotation axis of the rotating disc, and installing one work component on each installation station, when each time the work component needs to be switched, the driving member drives the rotating disc to rotate the same angle. By such arrangement, the driving control logic of the driving member is simplified, compared to each time the different work components are switched, the driving member drives the rotating disc to rotate different angles, the driving member of the present scheme does not need to frequently adjust the operating parameters, and the control logic of the driving member is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a front view of the turret device;

[0035] Figure 2 It is a sectional view of the turret device;

[0036] Figure 3 It is Figure 2 It is a partial structure schematic view at A in the middle;

[0037] Figure 4 It is a structure schematic view of the machine tool;

[0038] Figure 5 It is a partial structure schematic view of the machine tool.

[0039] BRIEF DESCRIPTION OF DRAWINGS:

[0040] 10, rotating disc; 11, connecting plate;

[0041] 20, measuring component; 21, measuring head; 22, guide rail;

[0042] 30, tool component;

[0043] 31, first tool component; 311, first tool holder; 312, first tool head;

[0044] 32, second tool component; 321, second tool holder; 322, second tool head;

[0045] 33, third tool component; 331, third tool holder; 332, third tool head;

[0046] 40, driving member; 41, rotor; 42, stator;

[0047] 50, rotation angle detection member; 51, encoder body; 52, encoder rotating shaft;

[0048] 53, first encoder flange; 54, second encoder flange;

[0049] 60, bearing; 61, first ring body; 62, second ring body; 621, connecting flange; 622, connecting ring;

[0050] 70, brake assembly; 71, brake pad; 72, brake disc base; 73, brake disc body; 731, axial ring portion; 732, radial ring portion;

[0051] 80, fixing member; 801, annular cavity; 81, support portion; 82, connecting portion; 83, peripheral portion;

[0052] 91, bed; 92, table device; 93, slide table; 94, first driving mechanism; 95, bearing portion; 96, second driving mechanism; 97, tool dressing member. DETAILED DESCRIPTION

[0053] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details. In other instances, well-known process steps have not been described in detail in order to avoid obscuring the present application.

[0054] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0055] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0056] In the present application, unless specifically defined otherwise, if there is any appearance of the terms "mount", "connect", "connection", "fix", and the like, these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0057] In the present application, unless specifically defined otherwise, if there is any appearance of the terms "mount", "connect", "connection", "fix", and the like, these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and are not the only embodiment.

[0059] Reference Figure 1 A turret device includes a turret 10, a plurality of working components, and a driving member 40. The turret 10 has a rotation axis and a plurality of mounting stations uniformly distributed around the circumference of the rotation axis; each mounting station is provided with a working component, and the plurality of working components at least includes a measuring component 20 and a tool component 30, the measuring component 20 is used to measure the structural parameters of a workpiece on a machining station, and the tool component has a tool head used to machine the workpiece on the machining station; among the plurality of mounting stations, at least one mounting station is provided with the tool component 30, and at least another mounting station is provided with the measuring component; the driving member 40 has an output end, and the output end is drivingly connected with the turret 10 to drive the turret 10 to rotate around the rotation axis, and the turret 10 rotates by the same angle to sequentially align each working component with the workpiece on the same machining station.

[0060] The turret device, by uniformly distributing each installation station along the circumferential direction of the rotation axis of the rotating disc, and installing one work component on each installation station, the driving member 40 drives the rotating disc 10 to rotate the same angle each time the work component needs to be switched. By such arrangement, the driving control logic of the driving member 40 is simplified, compared to the driving member 40 driving the rotating disc 10 to rotate different angles each time different work components are switched, the driving member 40 of the present scheme does not need to frequently adjust the operating parameters, and the control logic of the driving member 40 is relatively simple.

[0061] It can be understood that the uniformly distributed installation stations along the circumferential direction of the rotation axis means that a connecting line is formed between each installation station and the rotation axis along the circumferential direction of the rotation axis, and the included angles between adjacent two connecting lines are equal. By such arrangement, the rotating disc 10 rotates at a consistent angle each time, improving the accuracy of repeated positioning during the rotation of the rotating disc 10.

[0062] In some embodiments, at least two cutter components 30 are provided, and the types and / or rotation speeds of the at least two cutter components 30 are different. By such arrangement, the diversity of workpiece processing methods can be improved, and the adaptability of the device can be improved.

[0063] In some embodiments, the number of installation stations is four, the plurality of work components includes three cutter components 30 and one measuring component 20, one cutter component 30 is installed on each of three installation stations of the four installation stations, and the other installation station is installed with the measuring component 20; each cutter component 30 includes a tool holder and a tool bit arranged at one end of the extension direction of the tool holder, the tool holder is arranged on the rotating disc 10, and the tool bit protrudes outward from the outer periphery of the rotating disc 10; along the circumferential direction of the rotation axis, the extension directions of the tool holders of adjacent two cutter components 30 are perpendicular. Specifically, the rotating disc 10 can rotate a full circle around the rotation axis, and when switching adjacent two cutter components 30 or adjacent cutter component 30 and the measuring component 20, the driving member 40 drives the rotating disc 10 to rotate 90°. By such arrangement, the workpiece can be processed by each cutter component 30, and the mutual interference of each cutter component 30 can be reduced.

[0064] Specifically, the three cutter components 30 are a first cutter component 31, a second cutter component 32, and a third cutter component 33. The first cutter component 31 includes a first tool holder 311 and a first tool bit 312, the first tool bit 312 is a turning tool bit; the second cutter component 32 includes a second tool holder 321 and a second tool bit 322, the second tool bit 322 is a grinding tool bit; and the third cutter component 33 includes a third tool holder 331 and a third tool bit 332, the third tool bit 332 is a grinding tool bit. The rotation speeds of the third tool bit 332 and the second tool bit 322 are different. By such arrangement, the adaptability of the device and the flexibility of processing the workpiece can be improved.

[0065] In some embodiments, the rotary table 10 is formed by an HT300 integral casting process, and all key functional and guide surfaces are precisely scraped. In this way, the structural stability of the rotary table 10 and the installation accuracy of the components are improved.

[0066] In some embodiments, the first tool head 312 adopts a finishing blade, with internal cold water, and the tool shaft flange adopts a Capto-C8 type. The maximum turning depth of the first tool head 312 is 700 mm. The maximum rotational speed of the spindle of the second tool head 322 is lower than that of the spindle of the third tool head 332. The rotational speed of the spindle of the second tool head 322 reaches up to 6000 rpm, the spindle port of the second tool head 322 adopts the form of an HSK-100A interface, and the maximum grinding depth of the second tool head 322 is 750 mm. The rotational speed of the spindle of the third tool head 332 reaches up to 16000 rpm, the spindle port of the third tool head 332 adopts the form of an HSK-63C interface, and the maximum grinding depth of the third tool head 332 is 350 mm. In this way, the versatility and processing accuracy of the device for processing workpieces are further improved.

[0067] In some embodiments, the measuring component 20 includes a measuring head 21, which is movably arranged relative to the rotary table 10 along a first direction. The extension directions of the tool holders of the two tool components adjacent to the measuring head 21 along the circumference of the rotary table 10 are perpendicular to the first direction, respectively. In this way, when the measuring head 21 needs to measure the structural parameters of the workpiece, the measuring head 21 can move towards or away from the workpiece along the first direction, which facilitates adaptive adjustment of the measurement position according to the different sizes and shapes of the workpiece, and further improves the detection accuracy and application range of the measuring head 21.

[0068] Further, the measuring component 20 further includes a guide rail 22 and a driving assembly. The guide rail 22 is arranged on the rotary table 10 and extends along the first direction, and at least part of the guide rail 22 protrudes outward from the circumference of the rotary table 10. The measuring head 21 is in sliding fit with the guide rail 22, so that the measuring head 21 can move to the outside of the rotary table 10. The driving assembly is in driving connection with the measuring head 21, so that the measuring head 21 moves or is stationary relative to the guide rail 22. The measuring head 21 can adopt the form of a probe for high-precision online measurement of the workpiece. The driving assembly can adopt the form of a rodless cylinder, and a linear guide pair is used for guidance. In this way, the position of the measuring head 21 relative to the rotary table 10 can be adjusted, and the movable range of the measuring head 21 is further improved.

[0069] Further, the rotating disc 10 is in a rectangular plate structure as a whole, and has a first side and a second side oppositely arranged along the rotating axis of the rotating disc 10, and each working component is arranged on the first side of the rotating disc 10, i.e. each cutter component 30 and the measuring component 20 are arranged on the first side of the rotating disc 10. In this way, the workpiece on the same work station can be machined or measured.

[0070] In some embodiments, the rotating disc 10 has four edges, and two adjacent edges are perpendicular to each other, and the first tool holder 311, the second tool holder 321, the third tool holder 331 and the guide rail 22 are arranged close to the four edges of the rotating disc 10 respectively, and the extending directions of the three tool holders are parallel to the corresponding edges respectively. In this way, the positioning of each component during installation can be facilitated.

[0071] In some embodiments, at least one of the guide rail 22, the first tool holder 311, the second tool holder 321 and the third tool holder 331 is provided with a counterweight mounting seat for mounting a counterweight. In this way, the counterweight can be selectively mounted on the at least one counterweight mounting seat according to the actual layout and mass distribution of each cutter component and the guide rail 22, so as to balance the inertial force of the rotating disc 10 during high-speed rotation, reduce the vibration of the rotating disc 10 and improve the stability of the rotating disc 10 during operation.

[0072] In some embodiments, the guide rail 22 is provided with a counterweight mounting seat. Compared with each tool holder, the guide rail 22 is relatively light in weight, and the counterweight mounting seat arranged on the guide rail 22 can effectively make up for the insufficient mass, and further optimize the mass distribution of the rotating disc 10 as a whole.

[0073] Referring to Figure 2 and Figure 3 , the turret device further comprises a rotating angle detection member 50 for detecting the rotating angle of the rotating disc 10, and the rotating angle detection member 50 is in communication connection with the driving member 40, and when the rotating angle detection member 50 detects that the rotating disc 10 rotates by a preset angle, the driving member 40 stops the driving action. In this way, the detection accuracy of the rotating angle of the rotating disc 10 can be improved, the accuracy and response speed of the rotating angle control of the rotating disc 10 can be improved, and the automation degree of the device can be improved.

[0074] In some embodiments, the driving member 40 comprises a body portion and an output end rotatably arranged relative to the body portion, and the turret device further comprises a bearing 60 having a first race body 61 and a second race body 62 relatively rotatable, the first race body 61 being fixedly connected with the body portion of the driving member 40, and the output end and the turntable 10 are both fixedly connected with the second race body 62. Specifically, the first race body 61 is annularly arranged outside the second race body 62, and the bearing further comprises a plurality of rolling bodies arranged between the first race body 61 and the second race body 62, the plurality of rolling bodies being uniformly distributed along the circumferential direction of the bearing 60. This part is prior art, and the present scheme will not be described in more detail here. The arrangement of the bearing 60 can improve the stability of the rotation of the turntable 10.

[0075] Further, the driving member 40, the rotation angle detection member 50 and the bearing 60 are all located on the second side of the turntable 10 away from each tool component. In this way, the interference of the driving member 40, the rotation angle detection member 50 and the bearing 60 with each tool component and the measuring component 20 can be reduced, and the rationality of the structural layout of the device can be improved.

[0076] Further, the device further comprises an annular connecting plate 11 coaxial with the turntable 10 and arranged on the side of the turntable 10 facing the driving member 40. The second race body 62 of the bearing 60 is fixedly connected with the connecting plate 11. In this way, the convenience and stability of connecting the second race body 62 of the bearing 60 with the turntable 10 can be improved.

[0077] Further, the rotation angle detection member 50 comprises an angle encoder, the angle encoder comprising an encoder body 51 fixed relative to the body portion of the driving member 40 and an encoder shaft 52 rotatably arranged relative to the encoder body 51, the encoder shaft 52 being synchronously rotatable with the turntable 10. In this way, without additional calculation of the deviation of the rotation angle of the encoder shaft 52 and the turntable 10, the rotation angle of the turntable 10 can be directly reflected in real time through the rotation angle of the encoder shaft 52, and the real-time performance and accuracy of the detection of the rotation angle of the turntable 10 can be improved.

[0078] Further, the turret device further comprises a brake assembly 70 in communication connection with the rotation angle detection member 50, and when the rotation angle detection member 50 detects that the turntable 10 rotates by a preset angle, the brake assembly 70 applies a braking force to at least one of the second race body 62 and the turntable 10. In this way, while the driving member 40 stops driving the turntable 10, the brake assembly 70 applies a braking force to at least one of the second race body 62 and the turntable 10, improving the stability and reliability of the stop of the turntable 10, reducing the tendency of the turntable 10 to continue rotating due to inertia, and further improving the accuracy of the control of the rotation angle of the turntable 10.

[0079] In some embodiments, the brake assembly 70 comprises a brake pad 71, a brake disc base 72 and a brake disc body 73, wherein the brake pad 71 is arranged on the second ring body 62; the brake disc base 72 is fixed relative to the body part, and the brake disc base 72 is spaced apart from the brake pad 71 along the axis direction of the bearing 60; the brake disc body 73 is arranged on the side of the brake disc base 72 close to the brake pad 71, and is movably arranged relative to the brake disc base 72 along the axis direction of the bearing 60 to contact and brake or separate and release the brake pad 71. When the rotation angle detection member 50 detects that the turntable 10 rotates to a preset angle, the brake assembly 70 is started, the brake disc body 73 moves towards the brake pad 71 until it contacts and generates a friction force with the brake pad 71, thereby achieving braking of the turntable 10. The above arrangement has a simple structure and excellent braking effect.

[0080] Further, the driving member 40 comprises a torque motor, which comprises a stator 42 and a rotor 41, the rotor 41 is rotatably arranged relative to the stator 42, the stator 42 is annularly arranged outside the rotor 41, the rotor 41 is coaxial with the turntable 10, and the rotor 41 is fixedly connected with the second ring body 62 of the bearing 60. In this way, the rotor 41, the bearing 60 and the turntable 10 form a synchronous rotation whole structure, and during driving, the rotor 41 of the torque motor directly drives the second ring body 62 and the turntable 10 to rotate synchronously, which has a compact structure and high transmission efficiency.

[0081] In some embodiments, along the axis direction of the output end of the driving member 40, the driving member 40 has a tubular structure with both ends open, i.e. the rotor 41 and the stator 42 are both annular structures with both ends open. The turret device further comprises a fixing member 80, which comprises a support part 81, a connecting part 82 and a peripheral part 83, the support part 81 and the peripheral part 83 are arranged on the same side of the connecting part 82, the peripheral part 83 is annularly arranged outside the support part 81, and the support part 81, the peripheral part 83 and the connecting part 82 form an annular cavity 801, the annular cavity 801 is open on the side away from the connecting part 82, and the end of the driving member 40 away from the turntable 10 is arranged in the annular cavity 801. In this way, the fixing member 80 can shield the opening of the end of the driving member 40 away from the turntable 10, reducing the possibility of impurities entering the cavity formed by the driving member 40 from the opening end of the driving member 40 away from the turntable 10.

[0082] Further, the brake disc base 72 is arranged at the end of the support part 81 away from the connecting part 82, the encoder body 51 is arranged on the brake disc base 72, and the encoder shaft 52 is located at the end of the encoder body 51 away from the brake disc base 72 and is fixedly connected with the second ring body 62. In this way, the support part 81 provides a mounting basis for the brake disc base 72, further improving the compactness of the device.

[0083] Further, the bearing 60 is annularly arranged at the outer periphery of the at least partial brake assembly 70 along the axial direction of the bearing 60. In this way, the bearing 60 coincides with the at least partial brake assembly 70 along the axial direction of the bearing 60, thereby reducing the overall size of the device along the axial direction of the turntable 10.

[0084] In some embodiments, the support portion 81 is arranged in the cavity formed by the driving member 40 away from the connecting portion 82, and the bearing 60 is annularly arranged at the outer periphery of the brake assembly 70 away from the support portion 81. In this way, the overall size of the device along the axial direction of the turntable 10 can be reduced, thereby facilitating the miniaturization of the device.

[0085] Further, the brake pad 71 is annularly arranged coaxially with the second ring body 62, and the first mounting groove is annularly arranged at the end of the second ring body 62 facing the driving member 40. The brake pad 71 is arranged in the first mounting groove, and the end surface of the brake pad 71 facing the driving member 40 is flush with the end surface of the second ring body 62 facing the driving member 40. In this way, the positioning reliability of the brake pad 71 can be improved, and the size of the device along the axial direction of the turntable 10 can be further reduced.

[0086] Further, the brake disc body 73 comprises an axial ring portion 731 and a radial ring portion 732 connected to each other. The axial ring portion 731 is annularly arranged at the outer side of the brake disc base 72, and the radial ring portion 732 is annularly arranged at the end of the axial ring portion 731 facing the brake pad 71. The radial ring portion 732 is arranged opposite to the brake pad 71 and is used to contact the brake pad 71 to achieve braking. In this way, the brake disc body 73 at least partially coincides with the brake disc base 72 along the axial direction of the turntable 10, thereby further reducing the overall size of the device along the axial direction of the turntable 10.

[0087] In some embodiments, the radial ring portion 732 is located inside the axial ring portion 731, and the brake disc base 72 is provided with an annular avoiding groove at the outer periphery of the end of the brake disc base 72 facing the brake pad 71. The avoiding groove is adapted to the radial ring portion 732. In this way, the avoiding groove can limit the movement of the brake disc body 73 away from the brake pad 71, and on the other hand, provide sufficient space for the radial ring portion 732 to move, thereby further improving the compactness of the device.

[0088] Further, the brake disc base 72 is annular and coaxially arranged with the bearing 60, and the device further comprises a first encoder flange 53, which is annularly arranged at one end of the encoder body 51 away from the encoder rotating shaft 52 and fixedly connected with the encoder body 51. The brake disc base 72 is annularly arranged outside the first encoder flange 53 and fixedly connected with the first encoder flange 53. In this way, the size of the device in the axial direction of the bearing 60 and the radial direction can be reduced as much as possible, and the structural compactness of the device is further improved.

[0089] Further, along the axial direction of the bearing 60, the bearing 60 is annularly arranged outside the at least partially rotating angle detection member 50. Specifically, one end of the bearing 60 away from the driving member 40 is annularly arranged outside the encoder body 51. In this way, the space formed by the bearing 60 can be reasonably utilized, and the structural compactness of the device is improved.

[0090] In some embodiments, the device further comprises a connecting member, which is annular, and the connecting member is annularly arranged between the second ring body 62 and the encoder rotating shaft 52. The outer periphery of the connecting member is fixedly connected with the second ring body 62 of the bearing 60, and the inner periphery is fixedly connected with the encoder rotating shaft 52. In this way, the connecting member, the bearing 60 and the encoder rotating shaft 52 shield the opening of the driving member 40 close to the rotating disc 10, reducing the impurities in the environment from entering the cavity formed by the driving member 40.

[0091] Further, along the axial direction of the bearing 60, at least part of the connecting member coincides with the bearing 60. In this way, the structural compactness of the device can be further improved.

[0092] Specifically, the connecting member comprises a connecting flange 621, a connecting ring 622 and a second encoder flange 54. The second encoder flange 54 is annular and coaxially fixedly connected with the encoder rotating shaft 52. The connecting ring 622 is annularly arranged outside the second encoder flange 54 and fixedly connected with the second encoder flange 54. The connecting flange 621 is annularly arranged between the connecting ring 622 and the second ring body 62 and fixedly connected with the connecting ring 622 and the second ring body 62, respectively. In this way, the convenience of assembling the connecting member can be improved, the overall structural strength of the connecting member can be improved, and the connection stability and rotation synchronization between the second ring body 62 of the bearing 60 and the encoder rotating shaft 52 can be improved.

[0093] Further, the inner periphery of the second ring body 62 of the bearing 60 at the end away from the driving member 40 is provided with an annular second mounting groove, and at least a part of the annular connecting flange 621 is arranged in the second mounting groove. The inner periphery of the connecting flange 621 at the end away from the driving member 40 is provided with an annular third mounting groove, and at least a part of the annular connecting ring 622 is arranged in the third mounting groove. The inner periphery of the connecting ring 622 at the end away from the driving member 40 is provided with an annular fourth mounting groove, and at least a part of the second encoder flange 54 is arranged in the fourth mounting groove. In this way, the overall size of the device in the axial direction of the driving member 40 can be reduced.

[0094] With reference to Figure 4 and Figure 5 , the application further provides a machine tool, which comprises a bed 91, a worktable device 92 and the turret device of any one of the above embodiments; the worktable device 92 is arranged on the bed 91 and is used for fixing a workpiece; the turret device is movably arranged relative to the bed 91 to approach or move away from the worktable device 92, and the measuring component 20 of the turret device is used for detecting the structural parameters of the workpiece, and the tool component is used for machining the workpiece. In this way, the workpiece can be machined and the structural parameters of the workpiece can be measured during machining, and the automation degree of the device is improved.

[0095] Further, the worktable device 92 is movably arranged relative to the bed 91 along a first direction, and the turret device is movably arranged relative to the bed 91 along a second direction, and the first direction intersects the second direction. The machine tool further comprises a sliding table 93 and a first driving mechanism 94, the sliding table 93 is in sliding fit with the bed 91 along the first direction, the worktable device 92 is arranged on the sliding table 93, and the first driving mechanism 94 is arranged on the bed 91 and is in driving connection with the sliding table 93 to drive the sliding table 93 to move along the first direction. In this way, the stable movement of the worktable device 92 along the first direction is facilitated, and the automation degree of the device is improved.

[0096] In some embodiments, the machine tool further comprises a carrier 95 and a second driving mechanism 96, the carrier 95 is arranged on the bed 91 and extends along the second direction, and the carrier 95 is located on one side of the movement direction of the sliding table 93; the turret device is arranged on the carrier 95 and is in sliding fit with the carrier 95 along the second direction, and the second driving mechanism 96 is arranged on the carrier 95 and is in driving connection with the turret device to drive the turret device to move along the second direction. In this way, the stable movement of the turret device along the second direction is facilitated, and the automation degree of the device is improved.

[0097] Further, the machine tool further comprises a tool dressing component 97, the tool dressing component 97 is arranged on the sliding table 93, the tool dressing component 97 and the worktable device 92 are distributed along the first direction, so that the dressing of the tool component is facilitated. The tool dressing component 97 at least comprises a diamond roller and a diamond pen. This part is prior art, and the present application will not be described in detail.

[0098] Any combination of the technical features in the above-described embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist, it should be considered that it is within the scope of the present application.

[0099] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be pointed out that, for ordinary skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A turret device, characterized in that, include: The turntable (10) has a rotation axis and multiple installation stations, which are evenly distributed around the rotation axis in a circumferential manner. The system comprises multiple working components, one of which is installed at each of the aforementioned installation stations. Each of the multiple working components includes at least a measuring component (20) and a cutting tool component (30). The measuring component (20) is used to measure the structural parameters of the workpiece at the machining station. The cutting tool component (30) has a cutting head used to machine the workpiece at the machining station. At least one of the multiple installation stations has the cutting tool component (30) installed at one of the installation stations, and at least another installation station has the measuring component (20) installed at another of the installation stations. The driving component (40) has an output end, which is drivenly connected to the turntable (10) so that the turntable (10) rotates around the rotation axis, and the turntable (10) rotates by the same angle so that the working parts on each of the mounting stations can be aligned with the workpieces on the same processing station in sequence.

2. The turret device according to claim 1, characterized in that, At least two cutting tool components (30) are provided, and the two cutting tool components (30) are of different types and / or have different rotation speeds.

3. The turret device according to claim 1, characterized in that, The number of installation stations is four, and the multiple working components include three cutting tool components (30) and one measuring component (20). Three of the four installation stations each install one cutting tool component (30), and the other installation station installs the measuring component (20). Each cutting tool component (30) includes a tool holder and a cutting head disposed at one end of the tool holder in the extension direction. The tool holder is disposed on the turntable (10), and the cutting head protrudes outward from the outer periphery of the turntable (10). Along the circumference of the axis of rotation, the extension directions of the tool holders of two adjacent tool components are perpendicular.

4. The turret device according to claim 3, characterized in that, The measuring component (20) includes: The measuring head (21) is movably disposed relative to the turntable (10) along a first direction; along the circumference of the turntable (10), the extension directions of the tool holders of the two tool components adjacent to the measuring head (21) are perpendicular to the first direction.

5. The turret device according to any one of claims 1 to 4, characterized in that, The turret device also includes: A rotation angle detection component (50) is used to detect the rotation angle of the turntable (10). The rotation angle detection component (50) is communicatively connected to the drive component (40). When the rotation angle detection component (50) detects that the turntable (10) rotates at a preset angle, the drive component (40) stops driving.

6. The turret device according to claim 5, characterized in that, The drive unit (40) includes a body and an output end, the output end being rotatably disposed relative to the body, and the turret device further includes: The bearing (60) has a first ring (61) and a second ring (62) that rotate relative to each other. The first ring (61) is fixedly connected to the main body, and the output end and the turntable (10) are both fixedly connected to the second ring (62). The rotation angle detection component (50) includes an angle encoder, which includes an encoder body (51) and an encoder shaft (52). The encoder body (51) is fixed relative to the body of the drive component (40), and the encoder shaft (52) is rotatably disposed relative to the encoder body (51). The encoder shaft (52) rotates synchronously with the turntable (10).

7. The turret device according to claim 6, characterized in that, The turret device also includes: The brake assembly (70) is communicatively connected to the rotation angle detection element (50). When the rotation angle detection element (50) detects that the turntable (10) rotates at the preset angle, the brake assembly (70) applies braking force to at least one of the second ring body (62) and the turntable (10).

8. The turret device according to claim 7, characterized in that, The brake assembly (70) includes: Brake pads (71) are mounted on the second ring body (62); The brake disc base (72) is fixed relative to the body of the drive member (40), and the brake disc base (72) and the brake pads (71) are spaced apart along the axial direction of the bearing (60). The brake disc body (73) is disposed on the side of the brake disc base (72) near the brake pad (71) and is movably disposed relative to the brake disc base (72) along the axial direction of the bearing (60) to contact the brake pad (71) for braking or release.

9. The turret device according to claim 8, characterized in that, Along the axial direction of the output end of the drive member (40), the drive member (40) is a cylindrical structure with openings at both ends; the turret device further includes: The fixed component (80) includes a support part (81), a connecting part (82), and a peripheral part (83). The support part (81) and the peripheral part (83) are disposed on the same side of the connecting part (82). The peripheral part (83) is arranged in a ring around the outside of the support part (81). The support part (81), the peripheral part (83), and the connecting part (82) form an annular cavity (801). The annular cavity (801) opens on the side away from the connecting part (82). The end of the drive member (40) away from the turntable (10) is disposed in the annular cavity (801). The brake disc base (72) is disposed on the end of the support part (81) away from the connecting part (82). The encoder body (51) is disposed on the brake disc base (72). The encoder shaft (52) is located at the end of the encoder body (51) away from the brake disc base (72) and is fixedly connected to the second ring body (62).

10. A machine tool, characterized in that, include: Bed frame (91); A worktable device (92) is mounted on the bed (91) and is used to fix the workpiece. The turret device according to any one of claims 1 to 9 is movably disposed relative to the bed (91) to be close to or away from the worktable device (92), the measuring component (20) of the turret device is used to detect the structural parameters of the workpiece, and the cutting tool component (30) of the turret device is used to process the workpiece.

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