A combined machine tool

Abstract

The application discloses a combined machine tool, and relates to the technical field of machining equipment, which comprises a machine body, a first workpiece shaft device, a second workpiece shaft device, a first guide driving device, a second guide driving device, a third guide driving device and an adjustable-angle tool holder. The first workpiece shaft device and the second workpiece shaft device are arranged on the machine body, the first guide driving device is arranged on one side of the first workpiece shaft device and is connected with a first tool turret device; the second guide driving device and the third guide driving device are arranged on one side of the second workpiece shaft device and are respectively connected with a second tool turret device and a third tool turret device; the adjustable-angle tool holder is arranged on the third tool turret device and has a swing end, and a tool is connected to the swing end. The combined machine tool can complete more machining procedures compared with common machine tools, can simultaneously machine between multiple procedures of the same workpiece, can simultaneously machine multiple workpieces, greatly shortens a machining cycle, and improves production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining equipment, in particular to a combined machine tool. BACKGROUND

[0002] When the machine tool is machining, as long as the workpiece is clamped, the side of the workpiece clamped cannot be machined. If the clamped side of the workpiece needs to be machined, the workpiece needs to be removed and clamped again after changing the direction. If the workpiece is clamped on the original machine tool, the next workpiece cannot be machined synchronously when the other side of the workpiece is machined, resulting in slow machining rhythm. If multiple machine tools are combined to improve the machining rhythm, the cost is too high, and the workpiece needs to be transported between different machine tools, which is time-consuming and laborious, and also occupies more factory space.

[0003] On the other hand, some workpieces need to be machined by multiple processes, such as turning, milling and drilling. If each process is machined by an independent machine tool, at least three machine tools are needed for the above-mentioned combined processes. Similarly, the workpiece needs to be transported between multiple different machine tools, which is time-consuming and laborious, and multiple devices occupy a large space.

[0004] Specifically, for an example of a workpiece, such as machining of an automobile hub, the two end faces, the outer circle, the inner hole wall of the hub need to be turned or milled, and the screw holes, the valve holes and the like at the end need to be drilled. A single hub needs to be machined by multiple processes, and even needs to be transported and switched between different machine tools to complete all machining processes. Similarly, when the hub is machined, the clamped side cannot be machined, and both end faces of the hub need to be machined. Switching between different machine tools may also require a transport robot, which occupies a large space, takes a long time to switch processes, and has a slow production rhythm. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a combined machine tool, which can complete more machining processes than ordinary machine tools, and can simultaneously machine multiple processes of the same workpiece and multiple workpieces, greatly shortening the machining rhythm and improving the production efficiency.

[0006] The combined machine tool according to the embodiments of the present application comprises:

[0007] a bed;

[0008] a first workpiece shaft device arranged on the bed and used for clamping a workpiece, and a rotation axis of the first workpiece shaft device being defined as a first axis;

[0009] A second workpiece shaft device is also arranged on the bed body and used for clamping a workpiece, and a rotation axis of the second workpiece shaft device is defined as a second axis;

[0010] A first guide driving device is arranged on one side of the first workpiece shaft device and has a guide stroke close to the first axis, and a first tool turret device for mounting a tool is connected to the first guide driving device;

[0011] A second guide driving device is arranged on one side of the second workpiece shaft device and has a guide stroke close to the second axis, and a second tool turret device for mounting a tool is connected to the second guide driving device;

[0012] A third guide driving device is also arranged on one side of the second workpiece shaft device and has a guide stroke close to the second axis, and a third tool turret device for mounting a tool is connected to the third guide driving device;

[0013] An adjustable angle tool seat is arranged on the second tool turret device or the third tool turret device, and has a swing end, and a tool is connected to the swing end of the adjustable angle tool seat;

[0014] A fourth guide driving device is arranged on one side of the first workpiece shaft device and has a guide stroke close to the first axis, and a fourth tool turret device for mounting a tool is connected to the fourth guide driving device.

[0015] The combined machine tool has at least the following beneficial effects: the first workpiece shaft device and the second workpiece shaft device can clamp a workpiece, generally, the workpiece is first clamped on the first workpiece shaft device, the first guide driving device drives the first tool turret device to be close to the first axis to process the workpiece. After one end of the workpiece is processed, the workpiece is clamped on the second workpiece shaft device, the second guide driving device drives the second tool turret device to be close to the second axis to process the workpiece, and the other end of the workpiece is processed. When the second tool turret device processes the workpiece, the third guide driving device can also drive the third tool turret device to process the workpiece synchronously, so as to shorten the processing cycle and improve the processing efficiency. When the workpiece is transferred to the second workpiece shaft device for processing, the first workpiece shaft device can mount a new workpiece, so that the workpieces on the first workpiece shaft device and the second workpiece shaft device can be processed at the same time, the processing cycle is shortened, and the processing efficiency is improved.

[0016] The adjustable angle tool seat can drive the connected tool to rotate to change the orientation of the tool, specifically, the tool on the adjustable angle tool seat can be at an angle or parallel to the second axis, that is, the tool is at an angle or perpendicular to the end face of the workpiece, so as to process various holes on the end face of the workpiece, mainly processing holes such as inclined holes (holes with an acute angle to the end face, and the hole axis is not perpendicular to the end face). When the end face of the workpiece is processed, the second tool tower device can also process the end face of the workpiece at the same time, realizing simultaneous processing of multiple processes of the workpiece and improving the processing efficiency.

[0017] According to some embodiments of the present application, the first guide driving device comprises a first sliding plate, a second sliding plate, a first guide rail and a second guide rail, the first guide rail is arranged on the bed, and the guide stroke of the first guide rail is parallel to the first axis, the first sliding plate is slidingly connected to the first guide rail, the second guide rail is arranged on the first sliding plate, and the guide stroke of the second guide rail is perpendicular to the first axis, the second sliding plate is slidingly connected to the second guide rail, the first tool tower device is connected to the second sliding plate, and the first sliding plate and the second sliding plate are respectively connected with transmission devices to be driven to move.

[0018] According to some embodiments of the present application, the second sliding plate is further provided with a fifth guide driving device, the guide stroke of the fifth guide driving device is parallel to the first axis, the fifth guide driving device is provided with a first tool seat for mounting a tool, and the fifth guide driving device can drive the first tool seat to move in a direction parallel to the first axis.

[0019] According to some embodiments of the present application, the second guide rail forms an angle with the vertical plane.

[0020] According to some embodiments of the present application, the second guide driving device comprises a third guide rail, a fourth guide rail, a fifth guide rail, a third sliding plate, a fourth sliding plate and a column, the third guide rail is arranged on the bed, and the guide stroke of the third guide rail is parallel to the second axis, the third sliding plate is slidingly connected to the third guide rail, the fourth guide rail is arranged on the third sliding plate, and the guide stroke of the fourth guide rail is perpendicular to the second axis, the column is vertically arranged and slidingly connected to the fourth guide rail, so that the column can move forward and backward in the horizontal direction to approach the second axis, the fifth guide rail is arranged on the column, the fifth guide rail has a guide stroke in the vertical direction, the fourth sliding plate is slidingly connected to the fifth guide rail, and the second tool tower device is arranged on the fourth sliding plate.

[0021] According to some embodiments of the present application, the fourth slide plate is further provided with a rotary driving device, the rotary driving device has a transmission shaft, the axis of the transmission shaft is perpendicular to the second axis, and the second tool tower device is fixed on the transmission shaft, so that the rotary driving device can drive the second tool tower device to rotate around the axis of the transmission shaft to adjust the orientation of the second tool tower device.

[0022] According to some embodiments of the present application, a sixth guide driving device and a multi-axis device are further provided, the sixth guide driving device is arranged on the second tool tower device or the third tool tower device, and the multi-axis device is arranged on the sixth guide driving device.

[0023] According to some embodiments of the present application, the second tool tower device has a mounting surface, the sixth guide driving device is arranged at the mounting surface of the second tool tower device, the guide stroke of the sixth guide driving device is parallel to the second axis, and the multi-axis device is slidingly connected to the sixth guide driving device.

[0024] According to some embodiments of the present application, the first workpiece shaft device is provided with a sixth guide rail, the guide stroke of the sixth guide rail is parallel to the first axis, a sliding table is slidingly connected to the sixth guide rail, a seventh guide rail is vertically arranged on the sliding table, a fifth slide plate is slidingly connected to the seventh guide rail, an eighth guide rail is arranged on the fifth slide plate, the eighth guide rail is horizontally arranged, the guide stroke of the eighth guide rail is perpendicular to the first axis, a second tool seat for mounting a tool is slidingly connected to the eighth guide rail, and at least two mounting positions are arranged on the second tool seat.

[0025] According to some embodiments of the present application, the bed body includes a first bed body and a second bed body distributed left and right, the first bed body and the second bed body are detachably connected, the first workpiece shaft device, the first guide driving device and the fourth guide driving device are arranged on the first bed body, and the second workpiece shaft device, the second guide driving device and the third guide driving device are arranged on the second bed body.

[0026] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0028] Figure 1 FIG. 1 is a structural schematic diagram of a combined machine tool according to an embodiment of the present application;

[0029] Figure 2Structure schematic view of third tool turret device and angle-adjustable tool holder in the embodiment of the present application;

[0030] Figure 3 Structure schematic view of first guide driving device in the embodiment of the present application;

[0031] Figure 4 Structure schematic view of second guide rail inclination setting of first guide driving device in the embodiment of the present application;

[0032] Figure 5 Structure schematic view of second guide driving device in the embodiment of the present application;

[0033] Figure 6 Structure schematic view of rotary driving device in the embodiment of the present application;

[0034] Figure 7 Structure schematic view of sixth guide driving device and multi-shaft device setting on second tool turret device in the embodiment of the present application;

[0035] Figure 8 Structure schematic view of sixth guide driving device and multi-shaft device setting on third tool turret device in the embodiment of the present application;

[0036] Figure 9 Structure schematic view of second tool holder and driving structure in the embodiment of the present application;

[0037] Figure 10 Principle schematic view of second tool holder switching tool in the embodiment of the present application;

[0038] Figure 11 Structure schematic view of bed body split into first bed body and second bed body in the embodiment of the present application;

[0039] Figure 12 Sectional view of a hub to be machined in the embodiment of the present application;

[0040] Figure 13 Structure front view schematic view of a hub; Figure 12

[0041] Reference numerals:

[0042] ​Bed body 100, first bed body 110, second bed body 120, first workpiece shaft device 200, sixth guide rail 210, sliding table 220, seventh guide rail 230, fifth sliding plate 240, eighth guide rail 250, second tool rest 260, second workpiece shaft device 300, first guide driving device 400, first tool turret device 401, first sliding plate 410, second sliding plate 420, first guide rail 430, second guide rail 440, fifth guide driving device 450, first tool rest 460, second guide driving device 500, second tool turret device 501, third guide rail 510, fourth guide rail 520, fifth guide rail 530, third sliding plate 540, fourth sliding plate 550, column 560, rotary driving device 570, sixth guide driving device 580, multi-axis device 590, third guide driving device 600, third tool turret device 601, adjustable angle tool rest 700, fourth guide driving device 800, fourth tool turret device 801.

[0043] Hub 900, left end face 910, right end face 920, outer circular face 930, inner hole face 940, inner end face 950, center hole 960, screw hole 970, valve hole 980. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as limiting the present application.

[0045] In the description of the present application, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, only for the purpose of describing the present application and simplifying the description, and is not intended to indicate or imply 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.

[0046] In the description of the present application, the plural refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0047] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0048] Reference Figure 1As shown, the combined machine tool of one embodiment of the present application comprises a machine bed 100, a first workpiece shaft device 200, a second workpiece shaft device 300, a first guide driving device 400, a second guide driving device 500, a third guide driving device 600, an adjustable angle tool holder 700 and a fourth guide driving device 800.

[0049] The first workpiece shaft device 200 is arranged on the machine bed 100 for clamping a workpiece, and the rotation axis of the first workpiece shaft device 200 is defined as a first axis;

[0050] The second workpiece shaft device 300 is also arranged on the machine bed 100 for clamping a workpiece, and the rotation axis of the second workpiece shaft device 300 is defined as a second axis;

[0051] The first guide driving device 400 is arranged on one side of the first workpiece shaft device 200, and has a guide stroke close to the first axis, and a first tool turret device 401 for mounting a tool is connected on the first guide driving device 400;

[0052] The second guide driving device 500 is arranged on one side of the second workpiece shaft device 300, and has a guide stroke close to the second axis, and a second tool turret device 501 for mounting a tool is connected on the second guide driving device 500;

[0053] The third guide driving device 600 is also arranged on one side of the second workpiece shaft device 300, and has a guide stroke close to the second axis, and a third tool turret device 601 for mounting a tool is connected on the third guide driving device 600;

[0054] The adjustable angle tool holder 700 is arranged on the second tool turret device 501 or the third tool turret device 601, and the adjustable angle tool holder 700 has a swinging end, and a tool is connected on the swinging end of the adjustable angle tool holder 700;

[0055] The fourth guide driving device 800 is arranged on one side of the first workpiece shaft device 200, and has a guide stroke close to the first axis, and a fourth tool turret device 801 for mounting a tool is connected on the fourth guide driving device 800.

[0056] Both the first workpiece spindle device 200 and the second workpiece spindle device 300 can adopt the spindle structure of a traditional machine tool, enabling the first workpiece spindle device 200 to clamp the workpiece to be processed and rotate around its own axis, i.e., around the first axis. The second workpiece spindle device 300 is similar. Preferably, both the first workpiece spindle device 200 and the second workpiece spindle device 300 are horizontally arranged. When the first guide drive device 400 and the second guide drive device 500 drive the first turret device 401 and the second turret device 501 to move respectively, the fitting equation for the relative position and distance between the first turret device 401 or the second turret device 501 and the workpiece is simple, which facilitates the calculation of the feed rate.

[0057] The turret is an integrated module in the prior art used to mount multiple cutting tools, and it has multiple mounting positions. The turret can automatically change tools to select one of the mounted tools for machining the workpiece. Specifically, the first turret device 401 includes a turret module and various auxiliary components and mounting parts, such as mounting plates for fixing the turret. Of course, the second turret device 501, the third turret device 601, and the fourth turret device 801 all adopt the same or similar structure as the first turret device 401.

[0058] The third turret assembly 601 can be equipped with a milling cutter or a drill bit for milling or drilling operations on the end face of a workpiece. (Refer to...) Figure 2 As shown, in a more preferred embodiment, at least one adjustable angle tool holder 700 is configured on the third turret device 601, and a milling cutter, drill bit, or other cutting tool is mounted on the adjustable angle tool holder 700. If the cutting tool is directly mounted on the mounting position of the third turret device 601, the orientation and relative position of the cutting tool are fixed, while the adjustable angle tool holder 700 can change the orientation and angle of the cutting tool. When a milling cutter or drill bit is mounted on the adjustable angle tool holder 700, the adjustable angle tool holder 700 can adjust the angle between the cutting tool and the workpiece end face, i.e., to perform complex curved surface machining on the workpiece end face, or to perform oblique hole machining at a certain angle to the end face. The third guide drive device 600 has a guide stroke close to the second axis, mainly driving and adjusting the relative position between the third turret device 601 and the workpiece clamped on the second workpiece shaft device 300, that is, controlling the contact position between the selected cutting tool and the workpiece, and performing machining operations on the workpiece.

[0059] In an alternative case, the workpiece is clamped on the first workpiece spindle device 200, and the machining of the outer contour and the inner contour is mainly performed, and the workpiece is clamped on the second workpiece spindle device 300, and the contour machining of the end which has not been machined and the milling or drilling machining of the end face are mainly performed. In this case, the workpiece on the first workpiece spindle device 200 is mainly machined by the first tool turret device 401, and the workpiece on the second workpiece spindle device 300 is machined by the second tool turret device 501 and the third tool turret device 601 together, so as to shorten the machining cycle. Of course, the second tool turret device 501 and the third tool turret device 601 can be provided with tools such as turning tools, milling cutters and drills. Therefore, when the second tool turret device 501 performs the machining of the workpiece contour, the third tool turret device 601 can also simultaneously perform the machining of other contours of the workpiece, that is, the synchronous machining of multiple processes. When the second tool turret device 501 is switched to a milling cutter or a drill, the simple hole of the end face of the workpiece can be machined, and at this time, the third tool turret device 601 is switched to the part with the adjustable angle tool holder 700, so that the tool on the adjustable angle tool holder 700 performs the machining of the complex contour of the end face of the workpiece or the machining of the inclined hole, and the second tool turret device 501 and the third tool turret device 601 can still simultaneously perform the machining of different processes.

[0060] The first guide driving device 400, the second guide driving device 500 and the third guide driving device 600 can use a multi-axis moving platform to realize the guiding and driving effect, and belong to commonly used devices. Specifically, the driving part can adopt a screw transmission to improve the transmission accuracy, and further improve the machining accuracy of the workpiece.

[0061] Specifically, in the machining process of a workpiece, the workpiece is first clamped on the first workpiece spindle device 200, the first workpiece spindle device 200 drives the workpiece to rotate around the first axis, the first guide driving device 400 drives the first tool turret device 401 to move close to the first axis, that is, the tool on the first tool turret device 401 can contact the workpiece, and the turning machining of the outer contour and the inner contour of the workpiece can be performed. Then the workpiece is transferred to the second workpiece spindle device 300, the second guide driving device 500 drives the second tool turret device 501 to move close to the second axis, that is, the tool on the second tool turret device 501 can contact the workpiece, and the turning machining of the contour of the workpiece which has not been machined is performed. The third guide driving device 600 can also drive the third tool turret device 601 to move close to the second axis, and simultaneously perform the machining of the workpiece. Of course, at this time, the first workpiece spindle device 200 clamps a new workpiece, and simultaneously performs the machining, so as to shorten the machining cycle and improve the production efficiency. The second tool turret device 501 can also be provided with a drill to perform the simple machining of the end face of the workpiece, such as a straight drill hole. At this time, the second tool turret device 501 can cooperate with the third tool turret device 601 to jointly perform the machining of the end face of the workpiece in different processes, and also can shorten the machining cycle and improve the production efficiency.

[0062] It can be understood that the fourth guide driving device 800 is arranged on one side of the first workpiece shaft device 200 and has a guide stroke close to the first axis, and the fourth guide driving device 800 is connected with the fourth tool turret device 801 for mounting a tool.

[0063] The fourth guide driving device 800 can drive the fourth tool turret device 801 to move close to the first axis to assist in machining the workpiece clamped on the first workpiece shaft device 200. For example, the fourth tool turret device 801 machines the outer contour of the workpiece, and at the same time, the first tool turret device 401 can also machine the inner contour of the workpiece, and the two processes are carried out at the same time, thereby shortening the machining cycle.

[0064] Referring to Figure 3 It can be understood that the first guide driving device 400 includes a first sliding plate 410, a second sliding plate 420, a first guide rail 430 and a second guide rail 440, the first guide rail 430 is arranged on the bed 100, and the guide stroke of the first guide rail 430 is parallel to the first axis, the first sliding plate 410 is slidingly connected to the first guide rail 430, the second guide rail 440 is arranged on the first sliding plate 410, and the guide stroke of the second guide rail 440 is perpendicular to the first axis, the second sliding plate 420 is slidingly connected to the second guide rail 440, and the first tool turret device 401 is connected to the second sliding plate 420. The first sliding plate 410 and the second sliding plate 420 are respectively connected with transmission devices to be driven to move.

[0065] The cooperation of the first guide rail 430 and the first sliding plate 410 is to enable the first tool turret device 401 to have a movement stroke parallel to the first axis, and the cooperation of the second guide rail 440 and the second sliding plate 420 is to enable the first tool turret device 401 to have a movement stroke perpendicular to the first axis. Finally, the first tool turret device 401 can move close to the first axis, that is, the tool can contact the workpiece to realize machining of the workpiece. The transmission devices connected to the first sliding plate 410 and the second sliding plate 420 can be various linear transmission devices, and preferably, a lead screw transmission device is used to improve the displacement control precision of the first tool turret device 401 and improve the machining precision. The first guide rail 430 is arranged on the bed 100, and additional structures or components are added to the bed 100 to make the first guide rail 430 easier to install and arrange. These additional structures or components can be understood as part of the bed 100 and also belong to the scheme that the first guide rail 430 is arranged on the bed 100.

[0066] It can be understood that the second sliding plate 420 is further provided with a fifth guide driving device 450, the guide stroke of the fifth guide driving device 450 is parallel to the first axis, the fifth guide driving device 450 is provided with a first tool seat 460 for mounting a tool, and the fifth guide driving device 450 can drive the first tool seat 460 to move in a direction parallel to the first axis.

[0067] The first tool seat 460 can be mounted with a tool, and when the first turret device 401 is machining the workpiece, the fifth guide driving device 450 can drive the first tool seat 460 to move further along the first axis direction to approach the workpiece, so that the tool on the first tool seat 460 can also contact the workpiece. The first turret device 401 and the tool on the first tool seat 460 simultaneously machine the workpiece, which is suitable for machining the same axis surface such as stepped groove, and simultaneous multi-process machining can save machining time.

[0068] Referring to Figure 4 It can be understood that the second guide rail 440 forms an angle with the vertical plane.

[0069] When the second guide rail 440 is inclined, that is, forms an angle with the vertical plane, the second slide plate 420 only needs to move along the second guide rail 440 to move away from the first workpiece shaft device 200 and the workpiece, so that the first turret device 401 avoids the first workpiece shaft device 200, which is convenient for taking and placing the workpiece. Specifically, the second slide plate 420 moves upward along the second guide rail 440, and at this time, the moving path can be decomposed into a vertical direction component and a horizontal direction component, that is, the second slide plate 420 drives the first turret device 401 to move upward and horizontally move backward to move away from the first workpiece shaft device 200.

[0070] Such arrangement can save the floor area of the machine tool and reduce the length of the first guide rail 430. This is because if the second guide rail 440 is vertically arranged, the second slide plate 420 and the first turret device 401 cannot move away from the first workpiece shaft device 200 in the horizontal plane by moving on the second guide rail 440. Only the first slide plate 410 can move on the first guide rail 430, that is, move parallel to the first axis direction, so that the second slide plate 420 and the first turret device 401 are dislocated from the first workpiece shaft device 200 to avoid. This necessarily needs to lengthen the first guide rail 430, so the floor area of the machine tool is also increased.

[0071] Referring to Figure 5As shown, it can be understood that the second guide driving device 500 comprises a third guide rail 510, a fourth guide rail 520, a fifth guide rail 530, a third sliding plate 540, a fourth sliding plate 550 and a column 560, the third guide rail 510 is arranged on the lathe bed 100, and the guide stroke of the third guide rail 510 is parallel to the second axis, the third sliding plate 540 is slidingly connected to the third guide rail 510, the fourth guide rail 520 is arranged on the third sliding plate 540, and the guide stroke of the fourth guide rail 520 is perpendicular to the second axis, the column 560 is vertically arranged and slidingly connected to the fourth guide rail 520, so that the column 560 can move forward and backward in the horizontal direction to approach the second axis, the fifth guide rail 530 is arranged on the column 560, the fifth guide rail 530 has a guide stroke in the vertical direction, the fourth sliding plate 550 is slidingly connected to the fifth guide rail 530, and the second tool turret device 501 is arranged on the fourth sliding plate 550.

[0072] This scheme is a specific arrangement of the second guide driving device 500. The third sliding plate 540 is slidingly connected to the third guide rail 510 and moves along the guide stroke direction of the third guide rail 510, so that the second tool turret device 501 has a moving stroke parallel to the second axis, i.e. controls the machining position of the tool on the workpiece. The column 560 is slidingly connected to the fourth guide rail 520 and moves along the guide direction of the fourth guide rail 520, i.e. moves in the direction perpendicular to the direction of the second axis, so that the second tool turret device 501 can move in the direction perpendicular to the axis of the workpiece, i.e. controls the cutting amount of the tool on the second tool turret device 501. The fourth sliding plate 550 can move on the fifth guide rail 530 along the guide direction of the fifth guide rail 530, i.e. in the vertical direction, which is perpendicular to the direction of the second axis, so that the second tool turret device 501 can move in the direction perpendicular to the axis of the workpiece, and also controls the cutting amount of the tool on the second tool turret device 501. In combination, the column 560 can approach the second axis horizontally on the fourth guide rail 520, and the fourth sliding plate 550 can approach the second axis vertically on the fifth guide rail 530, and the third sliding plate 540 can change the machining position by moving parallel to the second axis on the third guide rail 510, so as to finally realize that the tool on the second tool turret device 501 can move on the profile surface of the workpiece to control the specific machining point.

[0073] Referring to Figure 6 As shown, it can be understood that the fourth sliding plate 550 is further provided with a rotary driving device 570, the rotary driving device 570 has a transmission shaft, the axis of the transmission shaft is perpendicular to the second axis, and the second tool turret device 501 is fixed on the transmission shaft, so that the rotary driving device 570 can drive the second tool turret device 501 to rotate around the axis of the transmission shaft to adjust the orientation of the second tool turret device 501.

[0074] The rotary drive device 570 can use a spindle motor to drive the transmission shaft to rotate, thereby controlling the rotation of the second turret device 501 and changing its orientation. Specifically, it can change the position of the tool on the second turret device 501 from parallel to the second axis to an angle with the second axis. Therefore, the tool of the second turret device 501, such as a drill bit, can also perform inclined hole machining on the end face of the workpiece (the axis of the hole is not perpendicular to the end face).

[0075] Reference Figure 7 As shown, it can be understood that a sixth guide drive device 580 and a multi-spindle device 590 are also provided. The sixth guide drive device 580 is provided on the second turret device 501 or the third turret device 601, and the multi-spindle device 590 is provided on the sixth guide drive device 580.

[0076] Multiple drilling tools can be mounted on the multi-spindle 590 at the same time. The sixth guide drive device 580 can control the movement of the multi-spindle 590 so that the tools on the multi-spindle 590 contact the workpiece to perform multi-hole machining on the workpiece at the same time, or control the multi-spindle 590 away from the workpiece so that only the second turret device 501 or the third turret device 601 can machine the workpiece to avoid interference from the multi-spindle 590.

[0077] It is understandable that the multi-spindle 590 can be optionally mounted on the second turret device 501. Specifically, the second turret device 501 has a mounting surface, and the sixth guide drive device 580 is mounted on the mounting surface of the second turret device 501. The guide stroke of the sixth guide drive device 580 is parallel to the second axis, and the multi-spindle 590 is slidably connected to the sixth guide drive device 580.

[0078] The sixth guide drive device 580 can drive the multi-spindle 590 to move in a direction parallel to the second axis, that is, the multi-spindle 590 can move toward the end face of the workpiece to contact the end face of the workpiece, or move away from the end face of the workpiece to avoid the workpiece, so that the second turret device 501 can operate independently.

[0079] Another option is to refer to Figure 8 As shown, the multi-spindle 590 is selectively mounted on the third turret device 601, which has a mounting surface. The sixth guide drive device 580 is mounted on the mounting surface of the third turret device 601, and the guide stroke of the sixth guide drive device 580 is perpendicular to the second axis. The multi-spindle 590 is slidably connected to the sixth guide drive device 580.

[0080] The guide stroke of the sixth guide drive device 580 is preferably perpendicular to the second axis in the horizontal plane. By controlling the axis of the multi-spindle 590 to coincide with or be offset from the second axis, the multi-spindle 590 can be used to simultaneously drill holes in the workpiece or avoid the workpiece.

[0081] Referring to Figure 9 As shown in the figure, it can be understood that the first workpiece shaft device 200 is provided with a sixth guide rail 210, the guide stroke of the sixth guide rail 210 is parallel to the first axis, a sliding table 220 is slidably connected to the sixth guide rail 210, a seventh guide rail 230 is vertically arranged on the sliding table 220, a fifth sliding plate 240 is slidably connected to the seventh guide rail 230, an eighth guide rail 250 is arranged on the fifth sliding plate 240, the eighth guide rail 250 is horizontally arranged, the guide stroke of the eighth guide rail 250 is perpendicular to the first axis, and a second tool holder 260 for mounting a tool is slidably connected to the eighth guide rail 250, and at least two mounting positions are arranged on the second tool holder 260.

[0082] The tool can be arranged on the second tool holder 260, and the tool faces the first axis, that is, the tool faces the central axis of the workpiece. When the fifth sliding plate 240 moves along the seventh guide rail 230, the vertical movement of the second tool holder 260 can be controlled, so that the tool can contact the outer contour surface of the workpiece. In combination with the movement of the sliding table 220 on the sixth guide rail 210, the tool can move in a direction parallel to the first axis, so as to perform turning machining on the outer contour surface of the workpiece. The eighth guide rail 250 is horizontally arranged, and the guide stroke of the eighth guide rail 250 is perpendicular to the first axis, that is, when the second tool holder 260 moves on the eighth guide rail 250, only one tool on the second tool holder 260 can be controlled to contact the generatrix of the workpiece, so as to realize the selection of the tool, such as Figure 10 the case shown in the figure.

[0083] Referring to Figure 11 As shown in the figure, it can be understood that the bed body 100 includes a first bed body 110 and a second bed body 120 distributed left and right, the first bed body 110 and the second bed body 120 are detachably connected, the first workpiece shaft device 200, the first guide driving device 400 and the fourth guide driving device 800 are arranged on the first bed body 110, and the second workpiece shaft device 300, the second guide driving device 500 and the third guide driving device 600 are arranged on the second bed body 120.

[0084] The first bed body 110 and the second bed body 120 can be connected by bolts to achieve a detachable scheme, and of course are not limited to bolt connection. The first bed body 110 and the second bed body 120 are detachable, and can adapt to different processing environments, for example, the first bed body 110 and the second bed body 120 are used together according to the actual production line of the customer, or are used separately after being detached. Another case is that when the devices on the first bed body 110 and the second bed body 120 work at the same time, the processing of multiple cutters may cause resonance problems, which affect the processing precision. At this time, the first bed body 110 and the second bed body 120 can also be detached and used separately. When the first bed body 110 and the second bed body 120 are used separately after being detached, the workpieces on the first bed body 110 and the second bed body 120 can be switched through the truss or the feeding robot.

[0085] It can be understood that a chip removal device can also be provided, which is located below the first workpiece shaft device 200 and the second workpiece shaft device 300 to receive and collect the chips generated during processing.

[0086] In a specific embodiment, the chip removal device includes a chip collection groove and a movable chip removal assembly. The chip collection groove is arranged below the first workpiece shaft device 200 and the second workpiece shaft device 300 and has an open upper end. The movable chip removal assembly is arranged in the chip collection groove and placed along the length direction of the chip collection groove to remove the chips to one end of the chip collection groove.

[0087] The chip collection groove can simultaneously receive the chips generated during processing of the workpieces clamped by the first workpiece shaft device 200 and the second workpiece shaft device 300. Compared with multiple chip removal devices required when the workpieces are processed in multiple machine tools, only one set of movable chip removal assembly and chip collection groove can reduce the energy consumption of the supporting equipment. The chips generated during processing of the workpieces are removed in time, which can avoid accumulation of the chips on the bed body 100. The accumulated chips may enter the guide driving parts and affect the transmission accuracy of the components. The movable chip removal assembly can specifically include a chip removal screw, a chip removal scraper, a flat plate chain, and the like. All of them can transfer the chips to the end of the chip collection groove through movement, which is convenient for collection and processing.

[0088] Specifically, referring to Figure 12 and Figure 13As shown in one of the wheel hubs 900, taking the machining of the wheel hub 900 as an example, the parts of the wheel hub 900 that need to be machined include a left end face 910, a right end face 920, an outer circular face 930, an inner hole face 940, an inner end face 950, a central hole 960, a screw hole 970, and a valve hole 980. The wheel hub 900 is first arranged to be clamped on the first workpiece shaft device 200, specifically, the first workpiece shaft device 200 clamps the left end part of the wheel hub 900 (the position where the left end face 910 is located), and the first tool turret device 401 and the fourth tool turret device 801 machine the part of the outer circular face 930 that is not clamped, then the first tool turret device 401 machines the inner hole face 940, the inner end face 950, and the right end face 920, and if the first tool holder 460 is also provided, the first tool holder 460 can assist the first tool turret device 401 to machine the inner hole face 940, the inner end face 950, and the right end face 920 at the same time. After the workpiece is machined at the first workpiece shaft device 200, it is moved to the second workpiece shaft device 300, where the right end part of the wheel hub 900 is clamped. When the wheel hub 900 is at the second workpiece shaft device 300, the second tool turret device 501 and the third tool turret device 601 machine the remaining part of the left end face 910, the remaining part of the outer circular face 930, and the remaining part of the central hole 960 of the wheel hub 900. Finally, the second workpiece shaft device 300 is in a state of not rotating, the third tool turret device 601 and the adjustable angle tool holder 700 cooperate to adjust the direction of the tool, so that the wheel hub 900 can be machined for the screw hole 970 or the valve hole 980. In this step, the use of the multi-axis device 590 can also be selected to machine multiple screw holes 970 at the same time, thereby shortening the machining cycle. On the combined machine tool of the present application, the wheel hub 900 can be machined in the whole process, without the need to transport the wheel hub 900 to multiple machine tools for machining respectively, so that the production cycle is fast, and compared with the setting of multiple machine tools, the machine tool of the present application occupies a small area.

[0089] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present application.

Claims

1. A combination machine tool for machining wheel hubs, characterized in that, include: Bed frame (100); A first workpiece shaft device (200) is mounted on the bed (100) for clamping workpieces. The rotation axis of the first workpiece shaft device (200) is defined as the first axis. A sixth guide rail (210) is provided on the first workpiece shaft device (200). The guide stroke of the sixth guide rail (210) is parallel to the first axis. A slide table (220) is slidably connected to the sixth guide rail (210). A seventh guide rail (230) is vertically provided on the slide table (220). A fifth slide plate (240) is slidably connected to the seventh guide rail (230). An eighth guide rail (250) is provided on the fifth slide plate (240). The eighth guide rail (250) is horizontally arranged, and the guide stroke of the eighth guide rail (250) is perpendicular to the first axis. A second tool holder (260) for mounting tools is slidably connected to the eighth guide rail (250), and the second tool holder (260) has at least two mounting positions. The second workpiece shaft device (300) is also disposed on the bed (100) for clamping the workpiece, and the rotation axis of the second workpiece shaft device (300) is defined as the second axis. A first guide drive device (400) is disposed on one side of the first workpiece shaft device (200) and has a guide stroke close to the first axis. A first turret device (401) for mounting a tool is connected to the first guide drive device (400). The first guide drive device (400) includes a first slide plate (410), a second slide plate (420), a first guide rail (430), and a second guide rail (440). The first guide rail (430) is disposed on the bed (100), and the first guide rail (430) is disposed on the bed (100). The guide stroke of 0) is parallel to the first axis. The first slide plate (410) is slidably connected to the first guide rail (430). The second guide rail (440) is set on the first slide plate (410), and the guide stroke of the second guide rail (440) is perpendicular to the first axis. The second slide plate (420) is slidably connected to the second guide rail (440). The first turret device (401) is connected to the second slide plate (420). The first slide plate (410) and the second slide plate (420) are respectively connected to a transmission device to be driven to move. The second guide drive device (500) is disposed on one side of the second workpiece shaft device (300) and has a guide stroke close to the second axis. A second turret device (501) for mounting a tool is connected to the second guide drive device (500). A third guide drive device (600) is also provided on one side of the second workpiece shaft device (300) and has a guide stroke close to the second axis. A third turret device (601) for mounting a tool is connected to the third guide drive device (600). An adjustable angle tool holder (700) is provided on the second turret device (501) or the third turret device (601), and the adjustable angle tool holder (700) has a swing end, and the swing end of the adjustable angle tool holder (700) is connected to a tool. A fourth guide drive device (800) is disposed on one side of the first workpiece shaft device (200) and has a guide stroke close to the first axis. A fourth turret device (801) for mounting a cutting tool is connected to the fourth guide drive device (800). A sixth guide drive device (580) and a multi-spindle (590) are provided, wherein the sixth guide drive device (580) is disposed on the third turret device (601) and the multi-spindle (590) is disposed on the sixth guide drive device (580); The wheel hub (900) to be machined includes a curved left end face (910), a right end face (920), an outer circular surface (930), an inner bore surface (940), an inner end face (950), a center hole (960), a screw hole (970), and a valve hole (980). The first workpiece shaft device (200) is used to clamp the left end portion of the wheel hub (900). The first turret device (401) and the fourth turret device (801) jointly machine the outer circular surface (930). The first turret device (401) also machines the inner bore surface (940), the inner end face (950), and the right end face (980). The end face (920) is machined, the second workpiece shaft device (300) is used to clamp the right end part of the hub (900), the second turret device (501) and the third turret device (601) machine the outer cylindrical surface (930), the second turret device (501) machine the left end face (910), during the process of the second turret device (501) machining the left end face (910), the third turret device (601) machine the center hole (960) and the valve hole (980), and the multi-spindle device (590) machine the screw hole (970).

2. The combined machine tool according to claim 1, characterized in that: The second slide plate (420) is also provided with a fifth guide drive device (450), the guide stroke of the fifth guide drive device (450) is parallel to the first axis, the fifth guide drive device (450) is provided with a first tool holder (460) for mounting the tool, and the fifth guide drive device (450) can drive the first tool holder (460) to move in a direction parallel to the first axis.

3. The combined machine tool according to claim 1, characterized in that: The second guide rail (440) forms an angle with the vertical plane.

4. The combined machine tool according to claim 1, characterized in that: The second guide drive device (500) includes a third guide rail (510), a fourth guide rail (520), a fifth guide rail (530), a third slide plate (540), a fourth slide plate (550), and a column (560). The third guide rail (510) is mounted on the bed (100), and the guide stroke of the third guide rail (510) is parallel to the second axis. The third slide plate (540) is slidably connected to the third guide rail (510). The fourth guide rail (520) is mounted on the third slide plate (540), and the fourth guide rail (560) is parallel to the second axis. The guide stroke of the rail (520) is perpendicular to the second axis. The column (560) is vertically arranged and slidably connected to the fourth guide rail (520), so that the column (560) can move back and forth in the horizontal direction to approach the second axis. The fifth guide rail (530) is arranged on the column (560) and has a guide stroke in the vertical direction. The fourth slide plate (550) is slidably connected to the fifth guide rail (530). The second turret device (501) is arranged on the fourth slide plate (550).

5. The combined machine tool according to claim 4, characterized in that: The fourth slide plate (550) is also provided with a rotary drive device (570), which has a drive shaft. The axis of the drive shaft is perpendicular to the second axis. The second turret device (501) is fixed on the drive shaft, so that the rotary drive device (570) can drive the second turret device (501) to rotate around the axis of the drive shaft to adjust the orientation of the second turret device (501).

6. The combined machine tool according to claim 1, characterized in that: The second turret device (501) has a mounting surface, the sixth guide drive device (580) is disposed on the mounting surface of the second turret device (501), and the guide stroke of the sixth guide drive device (580) is parallel to the second axis. The multi-spindle device (590) is slidably connected to the sixth guide drive device (580).

7. The combination machine tool according to any one of claims 1 to 6, characterized in that: The bed (100) includes a first bed (110) and a second bed (120) distributed on the left and right sides. The first bed (110) and the second bed (120) are detachably connected. The first workpiece shaft device (200), the first guide drive device (400) and the fourth guide drive device (800) are disposed on the first bed (110), and the second workpiece shaft device (300), the second guide drive device (500) and the third guide drive device (600) are disposed on the second bed (120).

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