Turning and drilling combined machine tool

Abstract

The invention provides a turning and drilling combined machine tool, which belongs to the technical field of hub production and comprises a tool body, a stand column, a sliding table, a tool turret, a drilling main shaft and a workpiece main shaft. The rotating center of the cutter head is controlled to form the acute angle distribution with the vertical direction, it is ensured that other turning tools are away from a workpiece during machining and do not interfere with the workpiece, meanwhile, compared with a traditional structure, the radial distance from a contact point when the turning tools make contact with a hub to the axis of the cutter head is greatly reduced, the overall rigidity of the tool turret is good, and the machining efficiency is improved. And the machining precision can be improved. Moreover, according to the turning and drilling combined machine tool, the drilling main shaft is arranged on the tool turret, drilling machining can be achieved, part of hole sites machined in a traditional three-sequence mode can be advanced to be machined in a first sequence or a second sequence in practical application, and therefore the production rhythm is adjusted, the machining time of the hub is shortened, and the production efficiency is improved. And a structural foundation is provided for realizing machining of the whole hub by one machine tool.

Description

Technical Field

[0001] The invention belongs to the technical field of wheel hub production, and in particular relates to a turning and drilling compound machine tool. Background Art

[0002] The production process of the wheel hub mainly includes casting, machining and painting, among which machining mainly involves surface turning and hole processing of the wheel hub.

[0003] In the relevant existing technology, the machining of the wheel hub is mainly divided into three CNC machine tools, referred to as one-sequence, two-sequence and three-sequence processing. In the one-sequence processing, the inner and outer surfaces of the wheel hub are turned, in the two-sequence processing, the clamping area in the first-sequence processing is turned, and in the three-sequence processing, the wheel hub is drilled.

[0004] The turning tools of the first- and second-sequence processing machines are set perpendicular to the turret axis. The contact point between the turning tool and the wheel hub is far away from the radial distance of the turret axis, resulting in insufficient overall rigidity and affecting the processing accuracy. In addition, the second-sequence processing time is short and the third-sequence processing time is long, affecting the overall production rhythm. Summary of the invention

[0005] The present invention aims to solve at least one of the above-mentioned technical problems existing in the prior art. To this end, the present invention provides a turning and drilling compound machine tool, which can solve the problems of insufficient turret rigidity and slow production rhythm.

[0006] The turning and drilling compound machine tool according to an embodiment of the present invention is used for processing a wheel hub, and comprises: Bed; A column, wherein the column is arranged on the bed; A slide, the slide being movable and adjustable along a first direction and arranged on the column; A tool turret, the tool turret is arranged on the slide table so as to be movable and adjustable in the vertical direction, a tool disc is rotatably arranged at the lower end of the tool turret, a plurality of turning tools are distributed on the circumference of the tool disc, and the rotation center of the tool disc is distributed at an acute angle to the vertical direction; A drilling spindle, the drilling spindle is vertically arranged on one side of the turret along the first direction; A workpiece spindle is vertically arranged on the bed, and the axis of the workpiece spindle is coplanar with the axis of the cutter disc and the axis of the drilling spindle.

[0007] The turning and drilling compound machine tool according to the embodiment of the present invention has at least the following beneficial effects: The turning and drilling compound machine tool of this embodiment controls the rotation center of the cutter disc to be distributed at an acute angle to the vertical direction, thereby ensuring that the remaining turning tools are away from the workpiece during processing and will not interfere with the workpiece. At the same time, the radial distance from the contact point of the turning tool when it contacts the wheel hub to the axis of the cutter disc is greatly reduced compared to the traditional structure. The overall rigidity of the turret is good, which can reduce problems such as tool vibration caused by insufficient rigidity, thereby helping to improve processing accuracy. In addition, the turning and drilling compound machine tool of this embodiment is provided with a drilling spindle on the turret, which can realize drilling processing. In actual applications, some holes that are processed in the traditional three-sequence processing can be advanced to the first or second sequence for processing, thereby adjusting the production rhythm, shortening the machining time of the wheel hub, and helping to improve production efficiency. It also provides a structural basis for a machine tool to realize the machining of the entire wheel hub.

[0008] According to some embodiments of the present invention, the turning tool is arranged at an angle with the rotation center of the cutter disc, and the angle is equal to the acute angle between the rotation center of the cutter disc and the vertical direction.

[0009] According to some embodiments of the present invention, the bed is provided with a chip groove, which is arranged along the first direction, and the bed is provided with chip removal openings at both ends of the chip groove. The chip groove and the workpiece spindle are horizontally staggered along the second direction, and the second direction is perpendicular to the first direction.

[0010] According to some embodiments of the present invention, a chip conveyor is further included, wherein the chip conveyor is inserted into the chip groove from either end of the chip groove, and a blocking structure is provided at the other end of the chip groove.

[0011] According to some embodiments of the present invention, the bed is further provided with a water tank, which is located below the chip groove, and the size of the water tank along the second direction is larger than the size of the chip groove along the second direction; or, the bed is provided with a water tank outside the chip removal port.

[0012] According to some embodiments of the present invention, a side knife mechanism is further included, and the side knife mechanism is arranged on the column so as to be movable and adjustable at least along a second direction, and the second direction is perpendicular to the first direction.

[0013] According to some embodiments of the present invention, the side knife mechanism is provided with a plurality of knives along the first direction; or, The side knife mechanism is a rotating knife-changing structure.

[0014] According to some embodiments of the present invention, a first mounting seat for mounting a drill bit is provided at the lower end of the drilling spindle, a clamping portion is provided on the turret or the spindle box of the drilling spindle, and the turning and drilling compound machine tool further includes a wrench, and the wrench is provided with a connecting seat for clamping the clamping portion; Wherein, when the connecting seat is clamped with the clamping portion, the wrench is clamped with the first mounting seat.

[0015] According to some embodiments of the present invention, the bottom of the clamping portion is provided with convex portions protruding toward both sides, and the connecting seat is provided with a slot for the convex portion to be inserted into.

[0016] According to some embodiments of the present invention, at least a portion of the edge region of the bed is provided with a leak-proof groove, and the bed is further provided with a liquid return channel connecting the leak-proof groove and the water tank through a non-processing area.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and some additional aspects and advantages will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A schematic diagram of the overall structure of this application; Figure 2 A schematic diagram of a state where the turret and the wheel hub are connected; Figure 3 This is a schematic diagram of the traditional turret structure; Figure 4 A structural front view of the present application; Figure 5 A structural schematic diagram of the bed in this application; Figure 6 A schematic diagram of the installation of a wrench; Figure 7 A structural schematic diagram of a wrench; Figure 8 and Fig. 9 A schematic diagram of the structure of a leak-proof trough. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0024] Reference Figure 1 and Figure 4 This embodiment provides a turning and drilling compound machine tool for wheel hub processing, comprising: Bed 100; A column 200, the column 200 is arranged on the bed 100; The slide 300 is arranged on the column 200 so as to be movable and adjustable along a first direction; The turret 400 is arranged on the slide 300 so as to be movable and adjustable in the vertical direction. A cutter disc 500 is rotatably arranged at the lower end of the turret 400. A plurality of turning tools 501 are distributed around the circumference of the cutter disc 500. The rotation center of the cutter disc 500 is distributed at an acute angle to the vertical direction. A drilling spindle 600, which is vertically disposed on one side of the turret 400 along the first direction; The workpiece spindle 800 is vertically arranged on the bed 100 , and the axis of the workpiece spindle 800 is coplanar with the axis of the cutter head 500 and the axis of the drilling spindle 600 .

[0025] During operation, the wheel hub is mounted on the upper end of the workpiece spindle 800, and is rotated by the control of the workpiece spindle 800. The turning tool 501 is fed by the movement of the slide 300 along the first direction and the lifting of the turret 400 to perform turning processing on the wheel hub. In addition, a drilling spindle 600 is provided on the side of the turret 400, and a drill bit can be provided at its lower end, and drilling processing is performed by using the movement of the slide 300 and the lifting of the turret 400.

[0026] The turning and drilling compound machine tool of this embodiment controls the rotation center of the cutter disc 500 to be distributed at an acute angle to the vertical direction, thereby ensuring that the remaining turning tools 501 are away from the workpiece during processing and will not interfere with the workpiece. At the same time, the radial distance from the contact point of the turning tool 501 when it contacts the wheel hub to the axis of the cutter disc 500 is greatly reduced compared to the traditional structure. The overall rigidity of the turret 400 is good, which can reduce problems such as tool vibration caused by insufficient rigidity, thereby helping to improve processing accuracy. In addition, the turning and drilling compound machine tool of this embodiment is provided with a drilling spindle 600 on the turret 400, which can realize drilling processing. In actual applications, some holes that are processed in the traditional three-sequence processing can be advanced to the first or second sequence for processing, thereby adjusting the production rhythm, shortening the machining time of the wheel hub, and helping to improve production efficiency. It also provides a structural basis for a machine tool to realize the machining of the entire wheel hub.

[0027] Reference Figures 2 to 4 In some embodiments of the present invention, the turning tool 501 is set at an angle with the rotation center of the cutter disc 500, and the angle is equal to the acute angle between the rotation center of the cutter disc 500 and the vertical direction. In this embodiment, the turning tool 501 is tilted relative to the rotation center of the cutter disc 500 so that it forms an angle with the rotation center of the cutter disc 500. The end of the turning tool 501 will open outward relative to the cutter disc 500, so that the turning tool 501 located in the non-processing position can be further away from the wheel hub to avoid interference. In addition, based on the tilted setting of the turning tool 501, the distance between the installation point of the turning tool 501 on the cutter disc 500 and the rotation center of the cutter disc 500 can be reduced, thereby improving the overall rigidity of the turret 400.

[0028] When replacing a different turning tool 501, the turning tool 501 rotates around the rotation center of the cutter head 500 to adjust the height. When rotating to the lowest point, the turning tool 501 remains vertical. At this time, the turning tool 501 at the lowest point is in the processing position, which is convenient for tool feeding control. At the same time, the remaining turning tools 501 are in the form of opening at the ends relative to the cutter head 500, which increases the distance from the wheel hub and can effectively avoid interference.

[0029] In some embodiments of the present invention, a turntable bearing is arranged between the turret 400 and the cutter disc 500. The turntable bearing has both axial and radial support relative to the cutter disc 500, which can effectively ensure the radial rigidity and axial rigidity of the cutter disc 500. Even if the tool collision occurs during the processing, it is unlikely to cause the turret 400 to malfunction, and the stability is high.

[0030] Reference Figure 1 and Figure 4 , Figure 5 In some embodiments of the present invention, the bed 100 is provided with a chip groove 101 , the chip groove 101 is arranged along the first direction, and the bed 100 is provided with chip removal openings 103 at both ends of the chip groove 101 .

[0031] In actual application, the chip groove 101 is used to set the chip conveyor 900. Since chip removal openings 103 are provided at both ends of the chip groove 101, the chip conveyor 900 can be inserted from either end of the chip groove 101 for chip removal, providing two different chip removal direction options, which is more flexible in application.

[0032] Furthermore, the chip groove 101 and the workpiece spindle 800 are horizontally staggered along a second direction, the second direction being perpendicular to the first direction, and the chip groove 101 includes a groove bottom wall, which is higher than the lower end of the workpiece spindle 800 .

[0033] In a conventional wheel hub machining machine, the chip conveyor 900 is generally arranged below the workpiece spindle 800 to receive aluminum chips. The water tank for recovering coolant located below the chip conveyor 900 on the bed 100 is prone to a situation where the liquid level is higher than the chip conveyor 900, resulting in the aluminum chips not being discharged in time and entering the water tank, which increases the difficulty of cleaning. In this embodiment, the chip conveyor 900 can be raised away from the workpiece spindle 800 by staggering the chip conveyor groove 101 and the workpiece spindle 800 along the second direction, thereby avoiding the situation where the liquid level of the water tank is higher than the chip conveyor 900, which can effectively solve the above-mentioned problem. The position of the groove bottom wall can also adopt other designs, and is not limited to the above-mentioned setting above the workpiece spindle 800.

[0034] Reference Figure 1 In some embodiments of the present invention, the turning and drilling compound machine tool further includes a chip conveyor 900, which is inserted into the chip groove 101 from either end of the chip groove 101, and a blocking structure is provided at the other end of the chip groove 101. The blocking structure is mainly used to ensure the sealing of the chip discharge port 103 to prevent leakage of coolant.

[0035] In some embodiments of the present invention, the bed 100 is further provided with a water tank, which is located below the chip flute 101, and the size of the water tank along the second direction is larger than the size of the chip flute 101 along the second direction. It can be understood that the size of the water tank along the second direction is larger than the size of the chip flute 101, that is, the size of the water tank is enlarged along the second direction, which can effectively increase the capacity of the water tank and help avoid the situation where the liquid level is higher than the chip conveyor 900.

[0036] In some embodiments of the present invention, the water tank is arranged outside the bed 100 and docked with the chip removal port 103. With the structural arrangement of this embodiment, firstly, based on the misaligned distribution of the chip removal groove 101 and the workpiece spindle 800, the position of the chip removal port 103 can be improved, so the height of the water tank can be increased. Secondly, the water tank can be designed to a size according to the site to increase the capacity. The external water tank is easy to clean, and only the seal between the water tank and the chip removal port 103 needs to be controlled to avoid the problem of coolant leakage, and the reliability is high.

[0037] In some embodiments of the present invention, the side wall of the chip groove 101 extends upward and outward from the bottom wall of the chip groove 101 to the upper end of the bed 100 to guide the coolant and aluminum chips into the chip groove 101.

[0038] Since the chip groove 101 in the present application is staggered with the workpiece spindle 800, the chip groove 101 can effectively guide the aluminum chips and coolant to the chip conveyor 900 by setting an inclined side wall, thereby ensuring chip removal efficiency.

[0039] Reference Figure 1 In some embodiments of the present invention, a side cutter mechanism 700 is further included. The side cutter mechanism 700 is arranged on the column 200 to be movable and adjustable along a second direction, and the second direction is perpendicular to the first direction. The turning and drilling compound machine tool of this embodiment has both a turret 400 and a side cutter mechanism 700, and can use the turret 400 and the side cutter mechanism 700 to simultaneously turn the wheel hub, thereby improving the processing efficiency. The side cutter mechanism 700 can be moved along the second direction to achieve feeding.

[0040] In some embodiments of the present invention, the side cutter mechanism 700 is provided with multiple cutters along the first direction. And the side cutter mechanism 700 can be moved and adjusted along the first direction. With the structural arrangement of this embodiment, different turning tools 501 can be switched by moving along the first direction to meet different processing requirements.

[0041] In addition, in some embodiments, the side cutter mechanism 700 can also be raised and lowered to perform turning processing on different positions in the height direction of the wheel hub.

[0042] In some embodiments of the present invention, the side cutter mechanism 700 is configured as a rotary tool change structure. It is understandable that the rotary tool change structure includes a variety of implementable methods, such as a rotary cutter disc 500. This embodiment utilizes rotation to switch different cutters to meet different processing requirements.

[0043] Reference Figure 6 and Figure 7 In some embodiments of the present invention, a first mounting seat for mounting a drill bit is provided at the lower end of the drilling spindle 600, a clamping portion 801 is provided on the turret 400 or the spindle box of the drilling spindle 600, and the turning and drilling compound machine tool further includes a wrench 802, and the wrench 802 is provided with a connecting seat 803 for clamping the clamping portion 801; Wherein, when the connecting seat 803 is engaged with the engaging portion 801 , the wrench 802 is engaged with the first mounting seat.

[0044] It is understandable that the first mounting seat is usually fixed on the drilling spindle 600, and the drill bit is locked by the nut on the first mounting seat. When the drill bit is installed or removed, it is necessary to control the nut to be tightened or loosened relative to the first mounting seat. In this embodiment, the wrench 802 is provided to clamp the first mounting seat. When removing or installing the drill bit, the wrench 802 is clamped to the connecting seat 803 for fixing, and the wrench 802 is clamped to the first mounting seat, so that the first mounting seat and the drilling spindle 600 are fixed. Then, the tool is used to tighten the nut on the first mounting seat or loosen the nut on the first mounting seat to achieve the clamping or removal of the drill bit, which is conducive to reducing the labor intensity of workers replacing the drill bit. In addition, the wrench 802 has a simple structure and reliable operation.

[0045] In some embodiments of the present invention, the bottom of the clamping portion 801 is provided with convex portions protruding toward both sides, such as Figure 6 As shown, the lower end of the clamping portion 801 is in an inverted T-shaped structure. The connecting seat 803 is provided with a slot 8031 ​​for the convex portion to be inserted. When the connecting seat 803 is sleeved onto the clamping portion 801 through the slot 8031, the clamping portion 801 can bear gravity and limit rotation, so that the wrench 802 can effectively clamp the first mounting seat and limit its rotation.

[0046] After the drill bit is replaced, the wrench 802 can be disassembled by pulling the connecting seat 803 outward from the clamping portion 801, which is easy to operate.

[0047] Reference Figure 7In some embodiments of the present invention, the connection seat 803 is provided with elastic clamping members 8032 on both sides of the slot 8031 ​​to support the clamping portion 801 and improve the stability during the clamping. Furthermore, a recessed position can be provided on the clamping portion 801 to cooperate with the support of the clamping member to improve the positioning effect. The elastic clamping member 8032 can adopt a structure such as a spring ejector pin, or other structural forms, which will not be described in detail here.

[0048] Reference Figure 1 , Figure 8 and Fig. 9 In some embodiments of the present invention, a leak-proof groove 102 is provided at least in part of the edge area of ​​the bed 100. The leak-proof groove 102 is provided at the bottom and outside of the protective baffle of the bed 100 to collect the coolant that seeps out from the gap of the protective baffle. In addition, the bed 100 is also provided with a liquid return channel 1021 connecting the leak-proof groove 102 and the water tank through the non-processing area. It can be understood that the processing area is the space enclosed by the protective baffle. During the processing of the wheel hub, aluminum chips may splash in the entire processing area. By providing the liquid return channel 1021, this embodiment can effectively avoid the situation where aluminum chips block the liquid return, thereby avoiding the occurrence of coolant leakage.

[0049] Reference Fig. 9 The liquid return channel 1021 is connected to the bottom of the anti-leakage groove 102 to ensure the liquid return efficiency.

[0050] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A turning and drilling compound machine tool, characterized in that: For wheel hub machining, including: Bed; A column, wherein the column is arranged on the bed; A slide, the slide being movable and adjustable along a first direction and arranged on the column; A tool turret, the tool turret is arranged on the slide table so as to be movable and adjustable in the vertical direction, a tool disc is rotatably arranged at the lower end of the tool turret, a plurality of turning tools are distributed on the circumference of the tool disc, and the rotation center of the tool disc is distributed at an acute angle to the vertical direction; A drilling spindle, the drilling spindle is vertically arranged on one side of the turret along the first direction; A workpiece spindle is vertically arranged on the bed, and the axis of the workpiece spindle is coplanar with the axis of the cutter disc and the axis of the drilling spindle.

2. The turning and drilling compound machine tool according to claim 1, characterized in that: The turning tool is arranged at an angle with the rotation center of the cutter disc, and the angle is equal to the acute angle between the rotation center of the cutter disc and the vertical direction.

3. The turning and drilling compound machine tool according to claim 1, characterized in that: The bed is provided with a chip groove, the chip groove is arranged along the first direction, and the bed is provided with chip openings at both ends of the chip groove, and the chip groove and the workpiece spindle are horizontally staggered and distributed along the second direction.

4. The turning and drilling compound machine tool according to claim 3, characterized in that: It also includes a chip conveyor, which is inserted into the chip groove from either end of the chip groove, and a sealing structure is arranged at the other end of the chip groove.

5. The turning and drilling compound machine tool according to claim 3, characterized in that: The bed is further provided with a water tank, the water tank is located below the chip removal groove, and the size of the water tank along the second direction is larger than the size of the chip removal groove along the second direction; or, The bed is provided with a water tank outside the chip discharge port.

6. The turning and drilling compound machine tool according to claim 1, characterized in that: It also includes a side knife mechanism, which is arranged on the column so as to be movable and adjustable at least along a second direction, and the second direction is perpendicular to the first direction.

7. The turning and drilling compound machine tool according to claim 6, characterized in that: The side knife mechanism is provided with a plurality of knives along the first direction; or, The side knife mechanism is a rotating knife-changing structure.

8. The turning and drilling compound machine tool according to claim 1, characterized in that: A first mounting seat for mounting a drill bit is provided at the lower end of the drilling spindle, a clamping portion is provided on the turret or the spindle box of the drilling spindle, and the turning and drilling compound machine tool further comprises a wrench, and the wrench is provided with a connecting seat for clamping the clamping portion; Wherein, when the connecting seat is clamped with the clamping portion, the wrench is clamped with the first mounting seat.

9. The turning and drilling compound machine tool according to claim 8, characterized in that: The bottom of the clamping part is provided with convex parts protruding to both sides, and the connecting seat is provided with a slot for the convex part to be inserted.

10. The turning and drilling compound machine tool according to claim 1, characterized in that: At least part of the edge area of ​​the bed is provided with a leak-proof groove, and the bed is also provided with a liquid return channel connecting the leak-proof groove and the water tank through a non-processing area.

Images