A deep hole boring and turning composite machining center

Abstract

The present invention provides a deep hole boring and turning compound machining center, which relates to the technical field of deep hole machining, and aims to solve the technical problem that the existing deep hole boring and turning compound machining center is difficult to align during the inner wall machining of the workpiece, which affects the accuracy and efficiency. The deep hole boring and turning compound machining center includes a bed, a follower headstock, a first turning device, a rotating headstock, a second turning device and a boring device. In the deep hole boring and turning compound machining center of the present invention, when the oil cylinder is repaired, the oil cylinder is used as the workpiece. The deep hole boring and turning compound machining center first uses the rotating headstock to align the inner hole of the workpiece, and after boring and cladding the inner wall of the oil cylinder, the axis of the outer cylindrical surface of the workpiece is made to coincide with the rotation axis of the rotating headstock to achieve alignment and correction of the workpiece, thereby improving machining accuracy and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of deep hole processing, in particular to a deep hole boring and turning composite processing center. Background Art

[0002] The deep hole boring machine is a machine tool that uses a boring cutter to bore the prefabricated holes of the workpiece. It is mainly used to process high-precision holes or complete the rough and fine processing of multiple parts of the inner and outer circles of deep hole parts in one positioning. In addition, it can also be used for processing other processing surfaces related to hole finishing. The deep hole boring machine is the main processing equipment for various deep hole parts, and can process threads, inner and outer circles, and end faces.

[0003] When using a deep hole boring machine to repair a cylinder, it is necessary to first clamp the cylinder onto the boring machine, align the inner hole of the cylinder, and then process the inner wall of the cylinder. After that, the cylinder is removed from the deep hole boring machine and the inner wall of the cylinder is covered with a cladding layer, and then the cladding layer is processed using the deep hole boring machine. Due to the uneven thickness of the cladding layer, there is a large error when aligning the inner hole of the cylinder that has been covered with the cladding layer. Summary of the invention

[0004] The purpose of the present invention is to provide a deep hole boring and turning compound machining center to solve the technical problem that the existing deep hole boring machine is difficult to align during the inner wall machining of the workpiece, which affects the accuracy and efficiency.

[0005] The technical solution adopted by the present invention is: a deep hole boring and turning composite machining center, comprising a bed, a follower headstock, a first turning device, a rotating headstock, a second turning device and a boring device; the rotating headstock is installed on the bedstock, and can allow a workpiece to pass through and drive the workpiece to rotate; the follower headstock is slidably connected to the bedstock, located on one side of the rotating headstock, and is used to clamp the end of the workpiece or a positioning piece connected to the end of the workpiece, and rotates with the workpiece or the positioning piece, and the rotation axis of the follower headstock coincides with the rotation axis of the rotating headstock; the first turning device is connected to the follower headstock, located between the follower headstock and the rotating headstock, and is used to turn the outer cylindrical surface of the end of the workpiece or the outer cylindrical surface of the positioning piece; the boring device is slidably connected to the bedstock, located on the side of the rotating headstock away from the follower headstock, and is used to bore the inner hole of the workpiece; the second turning device is connected to the bedstock, located between the rotating headstock and the boring device, and is used to turn the inner hole surface of the workpiece or the outer cylindrical surface of the workpiece close to the rotating headstock.

[0006] As a further optimization of the solution, the follower headstock includes a chuck and a first sliding mechanism; the first sliding mechanism is arranged on the bed; the chuck is connected to the first sliding mechanism, and can slide along the rotation axis of the rotating headstock under the drive of the first sliding mechanism; the rotation axis of the chuck coincides with the rotation axis of the follower headstock; and the first turning device is connected to the chuck.

[0007] As a further optimization of the solution, the rotating head frame includes a support frame, a bushing, a clamping device and a driving device; the support frame is mounted on the bed, and a receiving through hole for the workpiece to pass through is provided in the middle of the support frame; the bushing is rotatably supported in the receiving through hole; the clamping device is coaxially connected to the bushing and can clamp the workpiece passing through; the driving device is connected to the support frame and is transmission-connected to the bushing and can drive the bushing to rotate.

[0008] As a further optimization of the solution, the second turning device includes a second turning tool, a locking device, a turning tool cross worktable and a second sliding mechanism; the second sliding mechanism is arranged on the bed; the turning tool cross worktable is connected to the second sliding mechanism, and can slide parallel to the rotation axis of the rotating head frame under the drive of the second sliding mechanism; the locking device is arranged on the turning tool cross worktable for fixing the second turning tool.

[0009] As a further optimization of the solution, the boring device includes a boring head, a tool rod, a support base and a third sliding mechanism; the third sliding mechanism is arranged on the bed; the support base is connected to the third sliding mechanism, and can slide parallel to the rotation axis of the rotating head frame under the drive of the third sliding mechanism; one end of the support rod is connected to the boring head, and the other end of the support rod is connected to the support base.

[0010] As a further optimization of the scheme, the deep hole boring and turning composite machining center also includes an oiling device, which includes an oiling mechanism and a sliding mechanism; the oiling mechanism is slidably arranged on the bed, and the oiling mechanism is open at one end facing the workpiece, and the other end of the oiling mechanism is provided with a through hole for the tool rod of the boring device to pass through and an injection hole for the coolant to be injected; the sliding mechanism is slidably nested in the oiling mechanism, and the sliding mechanism can slide in the oiling mechanism under the action of external force to press or release the end face of the workpiece. The inner wall of the oiling mechanism is provided with a slide groove, and the outer side of the sliding mechanism is provided with a sliding boss extending into the slide groove, and the outer side of the sliding boss is in sealing contact with the inner wall of the slide groove; the inner wall of the slide groove is provided with two oiling pipes that penetrate the oiling mechanism; the sliding boss is located between the two oiling pipes; one of the oiling pipes injects hydraulic oil, and the other oiling pipe discharges hydraulic oil, so that the sliding mechanism presses or releases the end face of the workpiece.

[0011] As a further optimization of the solution, the oil supplying device also includes a closing mechanism, which is connected to one end of the sliding mechanism close to the workpiece, and can clamp the workpiece and rotate with the workpiece; the closing mechanism includes a supporting assembly, a connecting assembly and a clamping assembly; one end of the supporting assembly is connected to one end of the sliding mechanism close to the workpiece, and the other end of the supporting assembly is provided with an annular groove; the connecting assembly is rotatably supported in the annular groove; the clamping assembly is connected to the connecting assembly and extends out of the supporting assembly, and can clamp one end of the workpiece close to the oil supplying device.

[0012] As a further optimization of the solution, the deep hole boring and turning composite machining center also includes an automatic alignment device; the automatic alignment device includes two alignment mechanisms symmetrically arranged on both sides of the rotating head frame, and each alignment mechanism includes a sliding assembly and two screwing assemblies; the clamping device is a center frame; the sliding assembly is installed on the side wall of the rotating head frame; the two screwing assemblies are both connected to the sliding assembly, and the two screwing assemblies are spaced apart in a direction parallel to the axis of the rotating head frame; when the two alignment mechanisms receive a control signal, the two sliding assemblies slide synchronously in the same direction parallel to the axis of the rotating head frame, so that one of the screwing assemblies in the two alignment mechanisms moves to a working station; the two screwing assemblies located at the working station synchronously screw two symmetrical supporting claws on the center frame arranged on the rotating head frame, and the screwing directions of the two screwing assemblies are opposite.

[0013] As a further optimization of the solution, the deep hole boring and turning composite machining center also includes a detection device, which is arranged between the rotating headstock and the boring device; the detection device can measure the straight-line distance from the detection probe to the specified position of the workpiece, and process the data into a control signal, and transmit it to the automatic alignment device.

[0014] As a further optimization of the solution, the deep hole boring and turning composite machining center also includes a welding robot. The welding robot is arranged on the follower headstock, can weld the positioning piece to the end of the workpiece, and can weld a number or label on the workpiece.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the deep hole boring and turning compound machining center of the present invention, when repairing the oil cylinder, the oil cylinder is used as a workpiece. The deep hole boring and turning compound machining center first uses a rotating head frame to align the inner hole of the workpiece so that the axis of the inner hole of the workpiece coincides with the rotation axis of the rotating head frame; then the outer cylindrical surface of the end of the workpiece or the outer cylindrical surface of the positioning member is turned by the rotating head frame and the first turning device, and the outer cylindrical surface of the workpiece close to the rotating head frame is turned by the second turning device, so that the axis of the outer cylindrical surface of the workpiece, the axis of the inner hole and the rotation axis of the rotating head frame coincide. After boring the inner wall of the oil cylinder, it is removed from the deep hole boring and turning compound machining center for inner hole cladding treatment. When the deep hole boring and turning compound machining center is used to process the cladding layer, due to the uneven thickness of the cladding layer, the axis of the inner hole of the workpiece can no longer serve as a calibration basis. At this time, by making the axis of the outer cylindrical surface of the workpiece coincide with the rotation axis of the rotating head frame, the workpiece can be aligned and corrected, thereby improving the processing accuracy and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a deep hole boring and turning composite machining center provided by an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a follower head frame provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of a rotating head frame provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of a second turning device provided by an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of a boring device provided in an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of an oil supply device provided in an embodiment of the present invention;

[0023] Figure 7 A schematic diagram of an automatic alignment device provided by an embodiment of the present invention;

[0024] Figure 8 A schematic diagram of an alignment process provided by an embodiment of the present invention;

[0025] Fig. 9 Another schematic diagram of the alignment process provided by the embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0027] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the 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 invention.

[0028] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0030] This embodiment provides a deep hole boring and turning compound machining center. Please refer to the accompanying drawings in the specification. Figures 1 to 9 .

[0031] Reference Figure 1 As shown, the deep hole boring and turning composite machining center includes a bed 1, a follower headstock 2, a first turning device 21, a rotating headstock 3, a second turning device 4 and a boring device 5. The rotating headstock 3 is installed on the bed 1, and can allow the workpiece 8 to pass through and drive the workpiece 8 to rotate. The rotation axis of the rotating headstock 3 serves as the calibration reference of the workpiece 8 and each device. The follower headstock 2 is connected to the bed 1 and is located on one side of the rotating headstock 3. It is used to clamp the end of the workpiece 8 or the positioning piece connected to the end of the workpiece 8. When the workpiece 8 has a through hole, the follower headstock 2 clamps the end of the workpiece 8. When the workpiece 8 has a blind hole, the follower headstock 2 clamps the positioning piece and connects the positioning piece to the end of the workpiece 8. It rotates with the workpiece 8 or the positioning piece, and the rotation axis of the follower headstock 2 coincides with the rotation axis of the rotating headstock 3. The first turning device 21 is connected to the bed 1, located between the follower headstock 2 and the rotating headstock 3, and is used for turning the outer cylindrical surface of the end of the workpiece 8 or the outer cylindrical surface of the positioning member; the second turning device 4 is connected to the bed 1, located between the rotating headstock 3 and the boring device 5, and is used for turning the inner hole surface of the workpiece 8 or the outer cylindrical surface of the workpiece 8 close to the rotating headstock. The first turning device 21 and the second turning device 4 turn the outer cylindrical surfaces of the two ends of the workpiece 8 or the outer cylindrical surface of the positioning member respectively. After the outer cylindrical surface of the workpiece 8 or the positioning member is turned, its axis coincides with the rotation axis of the rotating headstock 2, and a straight line is determined based on the two points. The two ends of the workpiece 8 are on the same horizontal line to correct the offset that may be caused by the uneven weight of the two ends of the workpiece 8. The boring device 5 is slidably connected to the bed 1, located on the side of the rotating headstock 3 away from the follower headstock 2, and is used for boring the inner hole of the workpiece 8.

[0032] The deep hole boring and turning compound machining center provided in this embodiment uses the cylinder as a workpiece when repairing the cylinder. The deep hole boring and turning compound machining center first uses the rotating head frame 3 to align the inner hole of the workpiece 8 so that the axis of the inner hole of the workpiece 8 coincides with the rotation axis of the rotating head frame 3; then the outer cylindrical surface of the end of the workpiece 8 or the outer cylindrical surface of the positioning part is turned by the rotating head frame 3 and the first turning device 21, and the second turning device 4 turns the outer cylindrical surface of the workpiece 8 close to the rotating head frame 3, so that the axis of the outer cylindrical surface of the workpiece 8, the axis of the inner hole and the rotation axis of the rotating head frame 3 coincide. After boring the inner wall of the cylinder, the workpiece 8 is removed from the deep hole boring and turning compound machining center for inner hole cladding treatment. When the deep hole boring and turning compound machining center is used to process the cladding layer, due to the uneven thickness of the cladding layer, the axis of the inner hole of the workpiece 8 can no longer serve as the calibration basis. At this time, by making the axis of the outer cylindrical surface of the workpiece 8 coincide with the rotation axis of the rotating head frame 3, the workpiece 8 can be aligned and corrected, thereby improving the processing accuracy and efficiency.

[0033] Reference Figure 2 As shown, the follower headstock 2 includes a chuck 22 and a first sliding mechanism 23. The first sliding mechanism 23 is arranged on the bed 1, and the chuck 22 is connected to the first sliding mechanism 23, and can slide along the rotation axis of the rotating headstock 3 under the drive of the first sliding mechanism 23. The rotation axis of the chuck 22 coincides with the rotation axis of the follower headstock 2. The first sliding device 23 and the rotation axis of the rotating headstock 3 are on the same vertical plane. The height of the chuck 22 is adjusted so that its rotation axis coincides with the rotation axis of the rotating headstock 3. The chuck 22 slides on the first sliding device 23, and its rotation axis always coincides with the rotation axis of the rotating headstock 3. The workpiece 8 is mounted on the rotating headstock 3. When the workpiece 8 has a through hole, the chuck moves to and tightens the end of the workpiece 8 on the first sliding device 23. When the workpiece 8 has a blind hole, the chuck 22 first clamps the positioning member, and then slides along the first sliding device 23 until the positioning member abuts against the end of the workpiece 8, and the positioning member is fixed to the end of the workpiece 8 by welding.

[0034] Figure 2A specific implementation of the first sliding mechanism 23 is shown. Specifically, the first sliding mechanism 23 includes a first sliding mechanism motor 231, a first sliding mechanism support device 232, a first sliding mechanism lead screw 234 and a first sliding mechanism nut 232. One end of the first sliding mechanism lead screw 234 is connected to the first sliding mechanism motor 231 and is driven to rotate by the first sliding mechanism motor 231. The other end of the first sliding mechanism lead screw 234 passes through the first sliding mechanism support device 232 and the first sliding mechanism nut 232 in sequence. The first sliding mechanism nut 232 is sleeved on the first sliding mechanism lead screw 234 and is threadedly connected and moves on the first sliding mechanism lead screw 234. The first sliding mechanism nut 232 is connected to the chuck 22, and can drive the chuck 22 to move on the first sliding mechanism 23. Of course, the specific structure of the first sliding mechanism 23 is not limited to the following. Figure 2 The above description is not limiting, and the embodiments may also be gear racks, conveyor belts, etc.

[0035] The first turning device 21 is connected to the chuck 22, slides on the first sliding mechanism 23 with the chuck 22, and is used for turning the outer cylindrical surface of the end of the workpiece 8 or the outer cylindrical surface of the positioning member. The first turning device 21 includes a first turning tool and a hand wheel, and the hand wheel can adjust the movement of the first turning tool perpendicular to the rotation axis direction of the rotating head frame 3, thereby controlling the turning depth.

[0036] Reference Figure 3 As shown, the rotating head frame 3 includes a support frame 31, a bushing 32, a clamping device 33 and a driving device 34. The support frame 31 is mounted on the bed 1, and a receiving through hole 311 for the workpiece 8 to pass through is provided in the middle of the support frame 31. The bushing 32 is rotatably supported in the receiving through hole 311, that is, the support frame 31 provides support for the bushing 32. The clamping device 33 is coaxially connected to the bushing 32, that is, the rotation axis of the clamping device 33 coincides with the rotation axis of the bushing 32, and the clamping device 33 can clamp the workpiece 8 passing through. The driving device 34 is connected to the support frame 31 and is in transmission connection with the bushing 32, and can drive the bushing 32 to rotate.

[0037] When the rotating head frame 3 is working, the workpiece 8 can pass through the support frame 31 and be clamped and fixed by the clamping device 33 coaxially connected to the bushing 32. Driven by the driving device 34, the bushing 32 rotates in the receiving through hole 311 of the support frame 31, driving the clamping device 33 to rotate, and then the clamping device 33 drives the workpiece 8 to rotate. The rotating head frame can not only fix the workpiece 8 but also drive the workpiece 8 to rotate. The fixed center line of the workpiece 8 coincides with the rotation center line. The rotation of the workpiece 8 is the main motion, and the movement of the boring device 5 is the feeding motion. It can not only ensure that the workpiece 8 is fixed in the axial direction, but also facilitate boring, thereby improving the processing accuracy and efficiency of the workpiece 8.

[0038] Reference Figure 4As shown, the second turning device 4 includes a second turning tool 41, a locking device 42, a turning tool cross table 43 and a second sliding mechanism 44. The second sliding mechanism 44 is arranged on the bed 1; the turning tool cross table 43 is connected to the second sliding mechanism 44, and can slide parallel to the rotation axis of the rotating head frame 3 under the drive of the second sliding mechanism 44. The locking device 42 is arranged on the turning tool cross table 43, and is used to fix the second turning tool 41. The second turning device 4 is arranged between the rotating head frame 3 and the boring device 5, close to the end of the rotating head frame 3. The turning tool cross table 43 can slide in a direction parallel to the rotation axis of the rotating head frame 3 under the drive of the second sliding mechanism 44.

[0039] At the same time, the tool cross table 43 itself can slide along the rotation axis perpendicular to the rotating head frame 3. Furthermore, the second tool 41 can slide along the direction parallel to the rotation axis of the rotating head frame 3 and along the rotation axis perpendicular to the rotating head frame 3 driven by the tool cross table 43.

[0040] The second turning tool 41 slides along the direction perpendicular to the rotation axis of the rotating head frame 3 to the position of the inner wall of the workpiece 8, and can turn the inner hole surface of the workpiece 8; the second turning tool 41 slides to the outer wall of the workpiece 8, and can turn the outer cylindrical surface of the workpiece 8. After the workpiece 8 is mounted on the rotating head frame 3, the clamping device 33 is adjusted to align the workpiece so that the inner hole axis of the workpiece 8 coincides with the rotation axis of the rotating head frame 3, and the second turning device 43 where the boring device 5 slides to the position of the inner wall of the workpiece 8 can cooperate to process the inner hole of the workpiece 8.

[0041] In addition, the second turning device 43 can slide to the outer wall of the workpiece 8 and turn the outer circumference of the workpiece 8. In the same principle, the first turning device 21 turns the outer circumferential surface of the other end of the workpiece 8 or the outer circumferential surface of the positioning member. The axis of the outer circumference of the turned workpiece 8 coincides with the axis of the inner hole of the workpiece 8 and the rotation axis of the rotating head frame 3.

[0042] After the initial processing of the inner hole of the workpiece 8, it needs to be removed from the deep hole boring and turning composite machining center for inner hole cladding treatment. After the inner hole cladding, the inner hole of the workpiece 8 is uneven. If the axis of the inner hole is still used as the alignment reference at this time, the error is large, affecting the accuracy and efficiency. Therefore, when the workpiece 8 is reinstalled on the rotating head frame, the outer cylindrical surface turned by the first turning device 21 and the outer cylindrical surface turned by the second turning device 43 are used as references to adjust the clamping device 33 to achieve the alignment of the workpiece 8. At this time, the axis of the inner hole of the workpiece 8 coincides with the rotation axis of the rotating head frame 3.

[0043] Figure 4A specific implementation of the second sliding mechanism 44 is shown. Specifically, the second sliding mechanism 44 includes a second sliding mechanism motor 441, a second sliding mechanism support device 444, a second sliding mechanism screw rod 442, and a second sliding mechanism tool nut 443. One end of the second sliding mechanism screw rod 442 is connected to the second sliding mechanism motor 441, and is driven to rotate by the second sliding mechanism motor 441, and the other end of the second sliding mechanism screw rod 442 passes through the second sliding mechanism support device 444 and the second sliding mechanism tool nut 443 in sequence; the second sliding mechanism tool nut 443 is sleeved on the second sliding mechanism screw rod 442, is threadedly connected and moves on the second sliding mechanism screw rod 442; the second sliding mechanism tool nut 443 is connected to the turning tool cross worktable 43, and can drive the turning tool cross worktable 43 to move on the second sliding mechanism 44. Of course, the specific structure of the second sliding mechanism 44 is not limited to the following. Figure 4 The above description is not limiting, and the embodiments may also be gear racks, conveyor belts, etc.

[0044] Reference Figure 5 As shown, the boring device 5 includes a boring head 51, a tool bar 52, a support base 53 and a third sliding mechanism 54. The third sliding mechanism 54 is arranged on the bed 1, and the support base 53 is connected to the third sliding mechanism 54, and can slide parallel to the rotation axis of the rotating head frame 3 under the drive of the third sliding mechanism. One end of the support rod 52 is connected to the boring head 51, and the other end of the support rod 52 is connected to the support base 53. The boring head 51 is connected to the support base 53 through the tool bar 52, and the support base 53 can slide parallel to the rotation axis of the rotating head frame 3 on the third sliding mechanism 54, thereby driving the boring head 51 to slide. The workpiece 8 rotates as the main motion under the drive of the rotating head frame 3, and the movement of the boring head 51 is the feeding motion. The support of the tool bar 52 enables the boring head 51 to extend into the inner hole of the workpiece 8. According to different production requirements, through holes or blind holes can be bored. The boring tool head 51 is detachable and has various types, including but not limited to single-edge boring tool, double-edge boring tool, etc.

[0045] Figure 5A specific implementation of the third sliding mechanism 54 is shown. Specifically, the third sliding mechanism 54 includes a third sliding mechanism motor 541, a third sliding mechanism support device 542, a third sliding mechanism screw 543 and a third sliding mechanism nut 544. One end of the third sliding mechanism screw 543 is connected to the third sliding mechanism motor 541 and is driven to rotate by the third sliding mechanism motor 541, and the other end of the third sliding mechanism screw 543 passes through the third sliding mechanism support device 542 and the third sliding mechanism nut 544 in sequence; the third sliding mechanism nut 544 is sleeved on the third sliding mechanism screw 543, is threadedly connected and moves on the third sliding mechanism screw 543. The third sliding mechanism nut 544 is connected to the support base 53, and can drive the support base 53 to move on the third sliding mechanism 54. Of course, the specific structure of the third sliding mechanism 54 is not limited to the following. Figure 5 The above description is not limiting, and the embodiments may also be gear racks, conveyor belts, etc.

[0046] Reference Figure 6 As shown, the deep hole boring and turning composite machining center also includes an oiling device 6, which includes an oiling mechanism 61 and a sliding mechanism 62. The oiling mechanism 61 is slidably arranged on the bed 1. When working, the oiling device 61 slides along the bed 1 in a direction close to the workpiece 8. When the work is finished, the oiling device 61 slides along the bed 1 in a direction away from the workpiece 8. The oiling mechanism 61 is open at one end facing the workpiece 8, and the other end of the oiling mechanism 61 is provided with a through hole 611 for the tool rod 52 of the boring device 5 to pass through and a liquid injection hole 614 for the injection of coolant. The sliding mechanism 62 is slidably nested in the oiling mechanism 61, and the sliding mechanism 62 can slide in the oiling mechanism 61 under the action of external force to press or release the end face of the workpiece 8.

[0047] The through hole 611 provided on the oiling mechanism 61 allows the tool bar 52 of the boring device 5 to pass through and perform hole processing on the workpiece 8. The diameter of the through hole 611 is adapted to the diameter of the tool bar 52 of the boring device 5, that is, the through hole 611 and the tool bar 52 are clearance-matched, and the tool bar 52 can slide in the through hole 611. The sliding mechanism 62 is slidably nested in the oiling mechanism 61, and the diameter of the sliding mechanism 62 is adapted to the workpiece 8. During operation, the sliding mechanism 62 is acted on by an external force in the oiling mechanism 61 and slides toward the direction close to the workpiece 8, so that the end face of the sliding mechanism 62 is pressed against the end face of the workpiece 8. At this time, the inner cavity of the workpiece 8 and the oiling device form a closed environment, and the injection hole 614 injects high-pressure coolant into it to flush the inner cavity. After the operation is completed, the sliding mechanism 62 is acted on by an external force in the oiling mechanism 61 and slides away from the workpiece 8, so that the end face of the sliding mechanism 62 leaves the end face of the workpiece 8. The high-pressure coolant flushes the inner cavity and quickly discharges the debris from the drain hole, reducing the impact of the debris on the inner wall of the workpiece 8 and the boring tool, and improving the processing quality. At the same time, the fast-flowing coolant can reduce the temperature of the boring part and enhance the safety of processing production.

[0048] Continue to refer to Figure 6 As shown, the inner wall of the oil supply mechanism 61 is provided with a slide groove 612, and the outer side of the sliding mechanism 62 is provided with a sliding boss 621 extending into the slide groove 612, and the outer side surface of the sliding boss 621 is in sealing contact with the inner wall of the slide groove 612. Two oil injection pipes 613 that penetrate the oil supply mechanism 61 are provided on the inner wall of the slide groove 612. The sliding boss 621 is located between the two oil injection pipes 613; one of the oil injection pipes 613 is injected with hydraulic oil, and the other oil injection pipe 613 is discharged with hydraulic oil, so that the sliding mechanism 62 presses or releases the end face of the workpiece 8.

[0049] During operation, the oil injection pipe 613 away from the workpiece 8 injects hydraulic oil into the gap between the sliding boss 621 in the slide groove 612 and the oil injection pipe 613 away from the workpiece 8, and the oil injection pipe 613 close to the workpiece 8 discharges the hydraulic oil between the sliding boss 621 and the oil injection pipe 613 close to the workpiece 8. The sliding device 62 moves toward the direction close to the workpiece 8 under the thrust of the hydraulic oil injected by the oil injection pipe 613 away from the workpiece 8 until the end face of the sliding device 62 is pressed against the end face of the workpiece 8. Similarly, when the work is completed, the oil injection pipe 613 close to the workpiece 8 injects hydraulic oil into the gap between the sliding boss 621 in the slide groove 612 and the oil injection pipe 613 close to the workpiece 8, and the oil injection pipe 613 away from the workpiece 8 discharges the hydraulic oil between the sliding boss 621 and the oil injection pipe 613 away from the workpiece 8. The sliding device 62 moves in the direction away from the workpiece 8 under the thrust of the hydraulic oil injected in the oil injection pipe 613 close to the workpiece 8 until the end face of the sliding device 62 leaves the end face of the workpiece 8.

[0050] Of course, the control of the sliding mechanism 62 is not limited to the above-mentioned method, and can also be belt drive, gear drive, etc., as long as the sliding mechanism 62 can slide in the oil delivery mechanism 61.

[0051] Continue to refer to Figure 6 As shown, the oiling device 6 also includes a closing mechanism 63, which is connected to the end of the sliding mechanism 62 close to the workpiece 8, and can clamp the workpiece 8 and rotate with the workpiece 8. The closing mechanism 63 includes a supporting assembly 631, a connecting assembly 632 and a clamping assembly 633; ​​one end of the supporting assembly 631 is connected to the end of the sliding mechanism 62 close to the workpiece 8, and the other end of the supporting assembly 631 is provided with an annular groove 636; the connecting assembly 632 is rotatably supported in the annular groove 636; the clamping assembly 33 is connected to the connecting assembly 632, and extends out of the supporting assembly 631, and can clamp the end of the workpiece 8 close to the oiling device 6.

[0052] The end face of the sliding device 62 directly presses against the end face of the workpiece 8, so that the inner cavity of the workpiece 8 and the oiling device 6 for the deep hole boring and turning composite machining center form a closed space, which is suitable for the processing method in which the main motion is the rotation of the tool. When the processing method is the rotation of the workpiece 8 as the main motion, the part that abuts against the end face of the workpiece 8 needs to be able to rotate synchronously, so a closing mechanism 63 is also included. The support component 631 of the closing device 63 is connected to the end of the sliding device 62 close to the workpiece 8, and can approach or move away from the workpiece 8 under the drive of the sliding device 62. The clamping component 633 of the closing mechanism 63 initially clamps the outer circumference of the workpiece 8, and the sliding device 62 pushes the closing mechanism 63 to slide in the direction close to the workpiece 8. The connecting component 632 is rotatably supported in the annular groove 636, and can rotate in the annular groove 636 with the rotation of the workpiece 8. At this time, the inner cavity of the workpiece 8, the inner cavity of the support component 631, the inner cavity of the sliding device 62 and the inner wall of the oiling mechanism 61 form a closed space. Boring chips splash throughout the space, and high-pressure coolant is injected into this space for flushing and cooling.

[0053] The oil supply device 6 further includes a fourth sliding mechanism 64 . The oil supply mechanism 1 is disposed on the fourth sliding mechanism 64 and is driven by the fourth sliding mechanism 64 to slide along the direction of the rotation axis of the rotating head frame 3 . Figure 6 A specific implementation of the fourth sliding mechanism 64 is given. Specifically, the fourth sliding mechanism 64 includes a fourth sliding mechanism motor 641, a fourth sliding mechanism gear 642 and a fourth sliding mechanism rack 643.

[0054] The fourth sliding mechanism motor 641 is connected to the fourth sliding mechanism gear 642 and drives the fourth sliding mechanism gear 642 to rotate. The fourth sliding mechanism gear 642 is meshed with the fourth sliding mechanism rack 643, and the fourth sliding mechanism gear 642 moves on the fourth sliding mechanism rack 643 by rotating. The fourth sliding mechanism gear 642 is connected to the oiling mechanism 1, thereby driving the oiling mechanism 61 to move. The fourth sliding mechanism rack 643 is parallel to the rotation axis of the rotating head frame 3, and the fourth sliding mechanism gear 642 is fixed to the oiling mechanism 61, so that the oiling mechanism 61 can be coaxial with the rotating head frame 3.

[0055] Of course, the specific structure of the fourth sliding mechanism 64 is not limited to Figure 6 The above description is not limited thereto, and the invention may also be a screw nut, a conveyor belt, etc.

[0056] Reference Figures 8 to 9 As shown, the deep hole boring and turning composite machining center further includes a detection device 9. The detection device 9 is arranged between the rotating head frame 3 and the boring device 5; the detection device 9 can measure the straight-line distance from the detection probe to the specified position of the workpiece 8, and process the data into a control signal, which is transmitted to the automatic alignment device 7. The detection device 9 can be, but is not limited to, a distance sensor.

[0057] Reference Figure 7 As shown, the deep hole boring and turning composite machining center also includes an automatic alignment device 7; the automatic alignment device 7 includes two alignment mechanisms 71 symmetrically arranged on the two sides of the rotating head frame 3, and each alignment mechanism 71 includes a sliding component 711 and two screwing components 712. The clamping device 33 is a center frame 33. The automatic alignment device 7 is suitable for the case where the clamping device 33 is a center frame 33. The sliding component 711 is installed on the side wall of the rotating head frame 3; the two screwing components 712 are both connected to the sliding component 711, and the two screwing components 712 are spaced apart along the axis direction parallel to the rotating head frame 3.

[0058] When the two alignment mechanisms 71 receive the control signal, the two sliding components 711 slide synchronously in the same direction parallel to the axis of the rotating head frame 3, so that one of the screwing components 712 in the two alignment mechanisms 71 moves to the working station; the two screwing components 712 located at the working station synchronously screw the two symmetrical supporting claws 331 on the center frame 33, and the screwing directions of the two screwing components 712 are opposite.

[0059] Reference Figures 8 to 9 As shown, specifically, the detection and control process is as follows.

[0060] The detection device 9 measures that the straight-line distance from the position of the workpiece 8 clamped by the supporting claw 331 screwed by one screwing assembly 712 to the detection device 9 is a; the straight-line distance from the position of the workpiece 8 clamped by the supporting claw 331 screwed by another symmetrical screwing assembly 712 to the detection device 9 is b; and the displacement distance from the detection device 9 to the plane on the center frame 33 corresponding to the supporting claw 331 to be calibrated is c. Then the offset of the workpiece 8 is The detection device 9 sends a control signal to the alignment mechanism 3, and the screwing amount of the two symmetrical screwing components 712 corresponding to the workpiece position at a distance a from the detection device 9 is The screwing amount of the screwing assembly 712 corresponding to the workpiece position at a distance b from the detection device 9 is The workpiece 8 after being screwed is symmetrical with respect to the rotation axis of the rotating head 3 .

[0061] The rotating head frame 3 drives the center frame 33 to rotate 90°, so that the supporting claw 331 in the vertical direction rotates to the horizontal direction, and the screwing assembly 712 is controlled by the above method to continue to adjust the position of the workpiece 8. After two mutually perpendicular adjustments, the center of the end face of one end of the workpiece 8 is displaced to coincide with the rotation axis of the rotating head frame 3.

[0062] Similarly, continue to adjust the end surface of the other end of the workpiece 8.

[0063] The detection device 9 detects inwards, and the straight-line distance from the position of the workpiece 8 clamped by the supporting claw 331 screwed by a screwing assembly 712 at the other end of the workpiece 8 to the detection device 9 is a'; the straight-line distance from the position of the workpiece 8 clamped by the supporting claw 331 screwed by another symmetrical screwing assembly 712 to the detection device 9 is b'; the displacement distance from the detection device 9 to the plane where the supporting claw 331 on the center frame 33 that needs to be calibrated is c'. The offset of the other end of the workpiece is The detection device 9 sends a control signal to the alignment mechanism 3. The screwing amount of the two symmetrical screwing components 712 corresponding to the workpiece position at a distance a' from the detection device 9 is

[0064] The screwing amount of the screwing assembly 712 corresponding to the workpiece position at a distance b' from the detection device 9 is The other end of the workpiece 8 after being screwed is symmetrical with respect to the rotation axis of the rotating head frame 3 .

[0065] The rotating head frame 3 drives the center frame 33 to rotate 90°, so that the supporting claw 331 in the vertical direction rotates to the horizontal direction, and the screwing assembly 712 is controlled by the above method to continue to adjust the position of the other end of the workpiece 8. After two mutually perpendicular adjustments, the center of the end face of the other end of the workpiece 8 is displaced to coincide with the rotation axis of the rotating head frame 3.

[0066] A straight line is determined based on the two points. The centers of the end faces at both ends of the workpiece 8 coincide with the rotation axis of the rotating head frame 3 , and the axis of the workpiece 8 coincides with the rotation axis of the rotating head frame 2 .

[0067] Reference Figure 1 and Figure 2 As shown, the deep hole boring and turning composite machining center also includes a welding robot 24; the welding robot 24 is arranged on the follower head frame 2, and can weld the positioning piece to the end of the workpiece 8, and can weld a number or label on the workpiece.

[0068] The welding robot 24 replaces manual welding, which is more efficient, makes welding more solid, saves human resources, and realizes the automation of the deep hole boring and turning composite processing center.

[0069] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0070] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A deep hole boring and turning composite machining center, characterized in that: It comprises a bed (1), a follower headstock (2), a first turning device (21), a rotating headstock (3), a second turning device (4) and a boring device (5); The rotating head frame (3) is mounted on the bed (1) and is capable of allowing a workpiece (8) to pass through and driving the workpiece (8) to rotate; The follower head frame (2) is slidably connected to the bed (1) and is located on one side of the rotating head frame (3). It is used to clamp the end of the workpiece (8) or a positioning member connected to the end of the workpiece (8) and rotate with the workpiece (8) or the positioning member. The rotation axis of the follower head frame (2) coincides with the rotation axis of the rotating head frame (3). The first turning device (21) is connected to the bed (1), is located between the follower headstock (2) and the rotating headstock (3), and is used for turning the outer cylindrical surface of the end of the workpiece (8) or the outer cylindrical surface of the positioning member; The boring device (5) is slidably connected to the bed (1), is located on a side of the rotating headstock (3) away from the follower headstock (2), and is used for boring the inner hole of the workpiece (8); The second turning device (4) is connected to the bed (1), is located between the rotating headstock (3) and the boring device (5), and is used for turning the inner hole surface of the workpiece (8) or the outer cylindrical surface of the workpiece (8) close to the rotating headstock; The follower head frame (2) comprises a chuck (22) and a first sliding mechanism (23); The first sliding mechanism (23) is arranged on the bed (1); The chuck (22) is connected to the first sliding mechanism (23), and can slide along the rotation axis of the rotating head frame (3) under the drive of the first sliding mechanism (23); The rotation axis of the chuck (22) coincides with the rotation axis of the follower head frame (2); The first turning device (21) is connected to the chuck (22); It also includes an oil supply device (6), wherein the oil supply device (6) includes an oil supply mechanism (61) and a sliding mechanism (62); The oil supply mechanism (61) is slidably disposed on the bed (1); one end of the oil supply mechanism (61) facing the workpiece (8) is open, and the other end of the oil supply mechanism (61) is provided with a through hole (611) for the tool rod (52) of the boring device (5) to pass through and an injection hole (614) for injecting coolant; The sliding mechanism (62) is slidably nested in the oil supply mechanism (61), and the sliding mechanism (62) can slide in the oil supply mechanism (61) under the action of an external force to press or release the end surface of the workpiece (8); The inner wall of the oil supply mechanism (61) is provided with a sliding groove (612); the outer side of the sliding mechanism (62) is provided with a sliding boss (621) extending into the sliding groove (612); the outer side surface of the sliding boss (621) is in sealing contact with the inner wall of the sliding groove (612); the inner wall of the sliding groove (612) is provided with two oil injection pipes (613) penetrating the oil supply mechanism (61); The sliding boss (621) is located between the two oil injection pipes (613); one of the oil injection pipes (613) injects hydraulic oil, and the other oil injection pipe (613) discharges hydraulic oil, so that the sliding mechanism (62) presses or releases the end surface of the workpiece (8).

2. The deep hole boring and turning combined machining center according to claim 1 is characterized in that: The rotating head frame (3) comprises a support frame (31), a bushing (32), a clamping device (33) and a driving device (34); The support frame (31) is mounted on the bed (1), and a receiving through hole (311) for a workpiece (8) to pass through is provided in the middle of the support frame (31); The bushing (32) is rotatably supported in the accommodating through hole; The clamping device (33) is coaxially connected to the bushing (32) and is capable of clamping a workpiece (8) passing through the bushing; The driving device (34) is connected to the support frame (31) and is drivingly connected to the bushing (32), and is capable of driving the bushing (32) to rotate.

3. The deep hole boring and turning combined machining center according to claim 1, characterized in that: The second turning device (4) comprises a second turning tool (41), a locking device (42), a turning tool cross worktable (43) and a second sliding mechanism (44); The second sliding mechanism (44) is arranged on the bed (1); The turning tool cross worktable (43) is connected to the second sliding mechanism (44), and can slide parallel to the rotation axis of the rotating head frame (3) under the drive of the second sliding mechanism (44); The locking device (42) is arranged on the turning tool cross workbench (43) and is used to fix the second turning tool (41).

4. The deep hole boring and turning combined machining center according to claim 1, characterized in that: The boring device (5) comprises a boring tool head (51), a tool rod (52), a support base (53) and a third sliding mechanism (54); The third sliding mechanism (54) is arranged on the bed (1); The support base (53) is connected to the third sliding mechanism (54), and can slide parallel to the rotation axis of the rotating head frame (3) under the drive of the third sliding mechanism; One end of the tool rod (52) is connected to the boring tool head (51), and the other end of the tool rod (52) is connected to the support base (53).

5. The deep hole boring and turning combined machining center according to claim 1, characterized in that: The oil supply device (6) further comprises a closing mechanism (63), wherein the closing mechanism (63) is connected to an end of the sliding mechanism (62) close to the workpiece (8), and is capable of clamping the workpiece (8) and rotating with the workpiece (8); The closing mechanism (63) comprises a supporting assembly (631), a connecting assembly (632) and a clamping assembly (633); One end of the support component (631) is connected to an end of the sliding mechanism (62) close to the workpiece (8), and the other end of the support component (631) is provided with an annular groove (6311); The connecting assembly (632) is rotatably supported in the annular groove (6311); The clamping assembly (633) is connected to the connecting assembly (632) and extends out of the supporting assembly (631), and is capable of clamping one end of the workpiece (8) close to the oil supply device (6).

6. The deep hole boring and turning combined machining center according to claim 2, characterized in that: It also includes an automatic alignment device (7); the automatic alignment device (7) includes two alignment mechanisms (71) symmetrically arranged on two side surfaces of the rotating head frame (3), and each alignment mechanism (71) includes a sliding component (711) and two screwing components (712); The clamping device (33) is a center frame; The sliding assembly (711) is mounted on a side wall of the rotating head frame (3); The two screwing assemblies (712) are both connected to the sliding assembly (711), and the two screwing assemblies (712) are arranged at intervals along a direction parallel to the axis of the rotating head frame (3); When the two alignment mechanisms (71) receive a control signal, the two sliding assemblies (711) slide synchronously in the same direction parallel to the axis of the rotating head frame (3), so that one of the screwing assemblies (712) in the two alignment mechanisms (71) moves to a working station; the two screwing assemblies (712) located at the working station screw the two symmetrical supporting claws (331) on the center frame synchronously, and the screwing directions of the two screwing assemblies (712) are opposite.

7. The deep hole boring and turning combined machining center according to claim 6, characterized in that: Also includes a detection device (9); The detection device (9) is arranged between the rotating head frame (3) and the boring device (5); The detection device (9) is capable of measuring the straight-line distance from the detection probe to a specified position of the workpiece (8), and processing the data into a control signal, which is transmitted to the automatic alignment device (7).

8. The deep hole boring and turning combined machining center according to claim 1, characterized in that: It also includes a welding robot (24); the welding robot (24) is arranged on the follower head frame (2), capable of welding a positioning piece to the end of the workpiece (8), and capable of welding a number or a label on the workpiece (8).

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