CN112025308A

CN112025308A - Deep hole boring and turning combined machining center

Info

Publication number: CN112025308A
Application number: CN202010997802.XA
Authority: CN
Inventors: 蒲天娃; 李富佳; 余建旬
Original assignee: Xi'an Xinwang Mining Equipment Co ltd
Current assignee: Xi'an Xinwang Mining Equipment Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2020-12-04

Abstract

The invention provides a deep hole boring and turning combined machining center, relates to the technical field of deep hole machining, and aims to solve the technical problems that the existing deep hole boring and turning combined machining center is difficult to align in the machining process of the inner wall of a workpiece, and the precision and the efficiency are influenced. The deep hole boring lathe composite machining center comprises a lathe bed, a follow-up headstock, a first turning device, a rotating headstock, a second turning device and a boring device. According to the deep hole boring and turning combined machining center, when the oil cylinder is repaired, the oil cylinder serves as a workpiece. The deep hole boring lathe composite machining center firstly utilizes the rotating headstock to align the inner hole of the workpiece, and after the inner wall of the oil cylinder is subjected to boring machining and cladding treatment, the axis of the outer circular surface of the workpiece is superposed with the rotating axis of the rotating headstock, so that the workpiece is aligned and corrected, and the machining precision and efficiency are improved.

Description

Deep hole boring and turning combined machining center

Technical Field

The invention relates to the technical field of deep hole machining, in particular to a deep hole boring and turning combined machining center.

Background

The deep hole boring machine is a machine tool which mainly uses a boring cutter to bore the existing prefabricated holes of a workpiece. The method is mainly used for machining high-precision holes or finishing rough machining of a plurality of positions of the inner circle and the outer circle of a deep-hole part by one-time positioning, and can also be used for machining other machining surfaces related to hole finish machining. The deep hole boring machine is the main processing equipment of various deep hole parts, and can process threads, inner and outer circles, end faces and the like.

When the oil cylinder is repaired by using the deep-hole boring machine, the oil cylinder needs to be clamped on the boring machine at first, an inner hole of the oil cylinder needs to be aligned, then the inner wall of the oil cylinder is machined, then the oil cylinder is taken down from the deep-hole boring machine, a cladding layer covers the inner wall of the oil cylinder, and then the cladding layer is machined by using the deep-hole boring machine. Due to the fact that the thickness of the cladding layer is uneven, when the oil cylinder covered with the cladding layer is aligned through the inner hole, a large error exists.

Disclosure of Invention

The invention aims to provide a deep hole boring and turning combined machining center, which aims to solve the technical problems that the existing deep hole boring machine is difficult to align in the machining process of the inner wall of a workpiece, and the precision and the efficiency are influenced.

The technical scheme adopted by the invention is as follows: a deep hole boring lathe composite machining center comprises a lathe bed, a follow-up headstock, a first turning device, a rotating headstock, a second turning device and a boring device; the rotary headstock is arranged on the lathe bed and can be used for a workpiece to pass through and drive the workpiece to rotate; the follow-up headstock is connected with the lathe bed in a sliding manner, is positioned at one side of the rotating headstock, is used for clamping the end part of the workpiece or a positioning piece connected with the end part of the workpiece and rotates along with the workpiece or the positioning piece, and the rotating axis of the follow-up headstock is superposed with the rotating axis of the rotating headstock; the first turning device is connected with the follow-up headstock, is positioned between the follow-up headstock and the rotating headstock, and is used for turning the outer circular surface of the end part of the workpiece or the outer circular surface of the positioning piece; the boring device is connected with the lathe bed in a sliding way, is positioned on one side of the rotating headstock, which is far away from the follow-up headstock, and is used for boring the inner hole of the workpiece; and the second turning device is connected with the lathe bed, is positioned between the rotating headstock and the boring device and is used for turning the inner hole surface of the workpiece or the outer circular surface of the workpiece close to the rotating headstock.

As a further optimization of the solution, the follow-up head frame comprises a chuck and a first sliding mechanism; the first sliding mechanism is arranged on the lathe bed; the chuck is connected with the first sliding mechanism and can slide along the rotation axis of the rotating head frame under the driving of the first sliding mechanism; the rotation axis of the chuck is superposed with the rotation axis of the follow-up head frame; the first turning device is connected with the chuck.

As a further optimization of the solution, the rotating head frame comprises a support frame, a bushing, a clamping device and a driving device; the support frame is erected on the lathe bed, and the middle part of the support frame is provided with an accommodating through hole for a workpiece to pass through; the bushing is rotatably supported in the accommodating through hole; the clamping device is coaxially connected with the bushing and can clamp the workpiece passing through; the driving device is connected to the support frame and is in transmission connection with the bushing, and the bushing can be driven to rotate.

As further optimization of the scheme, the second turning device comprises a second turning tool, a locking device, a turning tool cross workbench and a second sliding mechanism; the second sliding mechanism is arranged on the lathe bed; the turning tool cross workbench is connected to the second sliding mechanism and can slide parallel to the rotation axis of the rotating headstock under the driving of the second sliding mechanism; the locking device is arranged on the turning tool cross workbench and used for fixing a second turning tool.

As a further optimization of the scheme, the boring device comprises a boring cutter head, a cutter bar, a support base and a third sliding mechanism; the third sliding mechanism is arranged on the lathe bed; the supporting base is connected with the third sliding mechanism and can slide parallel to the rotation axis of the rotating head frame under the driving of the third sliding mechanism; one end of the supporting rod is connected with the boring cutter head, and the other end of the supporting rod is connected with the supporting base.

As the further optimization of the scheme, the deep hole boring and turning combined machining center also comprises an oil supply device, wherein the oil supply device comprises an oil supply mechanism and a sliding mechanism; the oil supply mechanism is arranged on the lathe bed in a sliding manner, one end of the oil supply mechanism facing the workpiece is provided with an opening, and the other end of the oil supply mechanism is provided with a through hole for a cutter bar of the boring device to pass through and a liquid injection hole for injecting cooling liquid; the sliding mechanism is slidably nested in the oiling mechanism and can slide in the oiling mechanism under the action of external force so as to press or release the end face of the workpiece. The inner wall of the oil supply mechanism is provided with a sliding chute, the outer side of the sliding mechanism is provided with a sliding boss extending into the sliding chute, and the outer side surface of the sliding boss is in sealing contact with the inner wall of the sliding chute; two oil injection pipelines penetrating through the oil supply mechanism are arranged on the inner wall of the sliding chute; the sliding boss is positioned between the two oil filling pipelines; one of the oil injection pipelines is injected with hydraulic oil, and the other oil injection pipeline discharges the hydraulic oil so as to enable the sliding mechanism to compress or release the end face of the tool.

As the further optimization of the scheme, the oil supply device also comprises a sealing mechanism, and the sealing mechanism is connected with one end of the sliding mechanism, which is close to the workpiece, and can clamp the workpiece and rotate along with the workpiece; the sealing mechanism comprises a supporting component, a connecting component and a clamping component; one end of the supporting component is connected with one end of the sliding mechanism, which is close to the workpiece, and the other end of the supporting component is provided with an annular clamping groove; the connecting assembly is rotatably supported in the annular clamping groove; the clamping component is connected with the connecting component and extends out of the supporting component, and can clamp one end of the workpiece close to the oil feeding device.

As further optimization of the scheme, the deep hole boring and turning combined machining center also comprises an automatic alignment device; the automatic alignment device comprises two alignment mechanisms symmetrically arranged on two side surfaces of the rotating headstock, and each alignment mechanism comprises a sliding assembly and two screwing assemblies; the clamping device is a center frame; the sliding assembly is arranged on the side wall of the rotating head frame; the two screwing assemblies are connected with the sliding assembly and are arranged at intervals along the direction parallel to the axis of the rotating head frame; when the two alignment mechanisms receive the control signals, the two sliding assemblies synchronously slide along the same direction parallel to the axis of the rotating headstock, so that one screwing assembly in the two alignment mechanisms moves to a working station; two screwing assemblies positioned at the working station synchronously screw two symmetrical supporting claws arranged on a center frame on the rotating headstock, and the screwing directions of the two screwing assemblies are opposite.

As the further optimization of the scheme, the deep hole boring and turning combined machining center also comprises a detection device, wherein the detection device is arranged between the rotating headstock and the boring device; the detection device can measure the linear distance from the detection probe to the designated position of the workpiece, process the data into a control signal and transmit the control signal to the automatic alignment device.

As a further optimization of the scheme, the deep hole boring and turning combined machining center further comprises a welding robot, wherein the welding robot is arranged on the follow-up headstock, can weld the positioning piece on the end part of the workpiece, and can weld a number or a label on the workpiece.

Compared with the prior art, the invention has the beneficial effects that:

according to the deep hole boring and turning combined machining center, when the oil cylinder is repaired, the oil cylinder serves as a workpiece. The deep hole boring lathe composite machining center firstly uses a rotating headstock to align the inner hole of a workpiece, so that the axis of the inner hole of the workpiece is superposed with the rotation axis of the rotating headstock; then, the outer circle surface of the end part of the workpiece or the outer circle surface of the positioning piece is turned through the rotating head frame and the first turning device, and the outer circle surface of the workpiece close to the rotating head frame is turned through the second turning device, so that the axis of the outer circle surface of the workpiece, the axis of the inner hole and the rotation axis of the rotating head frame coincide. After the inner wall of the oil cylinder is subjected to boring processing, the oil cylinder is taken down from the deep hole boring and turning combined processing center to be subjected to inner hole cladding processing. When the deep hole boring and turning composite machining center is used for machining a cladding layer, the axis of an inner hole of a workpiece can not be used as a calibration basis any more due to the fact that the thickness of the cladding layer is uneven. At the moment, the axis of the excircle surface of the workpiece is coincided with the rotation axis of the rotating head frame, so that the workpiece is aligned and corrected, and the processing precision and the processing efficiency are improved.

Drawings

Fig. 1 is a schematic view of a deep hole boring and turning combined machining center provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a follower headstock provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of a rotating headstock provided by an embodiment of the present invention;

fig. 4 is a schematic view of a second turning device according to an embodiment of the present invention;

FIG. 5 is a schematic view of a boring device provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of an oil feeding device provided in an embodiment of the present invention;

FIG. 7 is a schematic view of an automatic alignment apparatus according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an alignment process provided by an embodiment of the present invention;

fig. 9 is another schematic diagram of an alignment process according to an embodiment of the present invention.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The embodiment provides a deep hole boring and turning combined machining center, please refer to fig. 1 to 9 in the drawings of the specification together.

Referring to fig. 1, the deep hole boring and turning combined machining center comprises a lathe bed 1, a follow-up headstock 2, a first turning device 21, a rotating headstock 3, a second turning device 4 and a boring device 5. The rotary headstock 3 is mounted on the lathe bed 1, and can be used for the workpiece 8 to pass through and drive the workpiece 8 to rotate, and the rotation axis of the rotary headstock 3 is used as the calibration standard of the workpiece 8 and each device. The follow-up head 2 is connected to the bed 1 on one side of the rotary head 3, and is used for clamping the end of the workpiece 8 or a positioning member connected with the end of the workpiece 8, when the workpiece 8 has a through hole, the follow-up head 2 clamps the end of the workpiece 8, and when the workpiece 8 has a blind hole, the follow-up head 2 clamps the positioning member and connects the positioning member to the end of the workpiece 8. And rotates with the workpiece 8 or positioner with the axis of rotation of the follower headstock 2 coinciding with the axis of rotation of the rotating headstock 3. The first turning device 21 is connected to the lathe bed 1, is positioned between the follow-up headstock 2 and the rotating headstock 3, and is used for turning the outer circular surface of the end part of the workpiece 8 or the outer circular surface of the positioning element; the second turning device 4 is connected to the lathe bed 1 and 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 circular surface of the workpiece 8 close to the rotating headstock. The first turning device 21 and the second turning device 4 respectively turn the outer circular surfaces of the two end parts of the workpiece 8 or the outer circular surface of the positioning element, the axis of the outer circular surface of the workpiece 8 or the positioning element is coincident with the rotation axis of the rotating head frame 2 after turning, a straight line is determined according to two points, and the two end parts of the workpiece 8 are on the same horizontal line, so that the offset which is possibly generated due to the uneven weight of the two end parts of the workpiece 8 is corrected. The boring device 5 is slidably connected to the lathe bed 1 and is positioned on one side of the rotating headstock 3, which is far away from the follow-up headstock 2, and is used for boring the inner hole of the workpiece 8.

The deep hole boring and turning combined machining center provided by the embodiment repairs the oil cylinder, and the oil cylinder serves as a workpiece. The deep hole boring lathe composite machining center firstly uses the rotating headstock 3 to align the inner hole of the workpiece 8, so that the axis of the inner hole of the workpiece 8 is superposed with the rotation axis of the rotating headstock 3; then, the outer circular surface of the end portion of the workpiece 8 or the outer circular surface of the positioning member is turned by the rotary head frame 3 and the first turning device 21, and the outer circular surface of the workpiece 8 close to the rotary head frame 3 is turned by the second turning device 4, so that the axis of the outer circular surface of the workpiece 8, the axis of the inner hole and the rotation axis of the rotary head frame 3 coincide with each other. After the inner wall of the oil cylinder is subjected to boring processing, the workpiece 8 is taken down from the deep hole boring and turning combined processing center to be subjected to inner hole cladding processing. When a deep hole boring and turning combined machining center is used for machining a cladding layer, the axis of the inner hole of the workpiece 8 can not be used as a calibration basis any more due to the fact that the thickness of the cladding layer is uneven. At this time, the axis of the outer circular surface of the workpiece 8 coincides with the rotation axis of the rotating headstock 3, so that the workpiece 8 is aligned and corrected, and the machining precision and efficiency are improved.

Referring to fig. 2, the servo head 2 includes a chuck 22 and a first slide mechanism 23. The first sliding mechanism 23 is disposed 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 head frame 3 under the driving of the first sliding mechanism 23. The axis of rotation of the chuck 22 coincides with the axis of rotation of the follower headstock 2. The first sliding device 23 is on the same vertical plane with the rotation axis of the rotation head frame 3, the height of the chuck 22 is adjusted to make the rotation axis coincide with the rotation axis of the rotation head frame 3, and the chuck 22 slides on the first sliding device 23 to always keep the rotation axis coincide with the rotation axis of the rotation head frame 3. The workpiece 8 is mounted on the rotating head 3 and when the workpiece 8 has a through hole, the chuck moves on the first slide 23 to and grips the end of the workpiece 8. When the workpiece 8 has a blind hole, the chuck 22 first grips the locating member and then slides along the first slide 23 to the end of the locating member against the workpiece 8, fixing the locating member to the end of the workpiece 8 by welding.

Fig. 2 shows a specific implementation of the first sliding mechanism 23. Specifically, the first slide mechanism 23 includes a first slide mechanism motor 231, a first slide mechanism support device 232, a first slide mechanism lead screw 234, and a first slide mechanism nut 232. One end of the first sliding mechanism lead screw 234 is connected with 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 sequentially passes through the first sliding mechanism supporting device 232 and the first sliding mechanism nut 232, and the first sliding mechanism nut 232 is sleeved on the first sliding mechanism lead screw 234 and is connected with the first sliding mechanism lead screw 234 through threads 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 fig. 2 and the above description, and may be a rack and pinion, a conveyor belt, or the like.

The first turning device 21 is connected to the chuck 22, and is configured to turn an outer circumferential surface of an end portion of the workpiece 8 or an outer circumferential surface of the positioning member as the chuck 22 slides on the first sliding mechanism 23. The first turning device 21 comprises a first turning tool and a hand wheel, which is capable of adjusting the movement of the first turning tool perpendicular to the direction of the rotation axis of the headstock 3, thereby controlling the depth of the turning.

Referring to fig. 3, the rotating head frame 3 includes a support frame 31, a bush 32, a clamping device 33, and a driving device 34. The support frame 31 is erected on the lathe bed 1, and the middle part of the support frame 31 is provided with an accommodating through hole 311 for the workpiece 8 to pass through. The bush 32 is rotatably supported in the receiving through hole 311, i.e. the support frame 31 provides support for the bush 32. The clamping device 33 is coaxially connected to the bush 32, i.e. the axis of rotation of the clamping device 33 coincides with the axis of rotation of the bush 32, and the clamping device 33 is capable of clamping the workpiece 8 passing through. The driving device 34 is connected to the supporting frame 31 and is in transmission connection with the bushing 32, and can drive the bushing 32 to rotate.

During operation of the rotary head frame 3, the workpiece 8 can pass through the support frame 31 and be clamped and fixed by the clamping device 33 coaxially connected to the bush 32. The bush 32 is driven by the driving device 34 to rotate in the receiving through hole 311 of the supporting frame 31, so as to drive the clamping device 33 to rotate, and further the clamping device 33 drives the workpiece 8 to rotate. The rotary headstock can not only fix the workpiece 8 but also drive the workpiece 8 to rotate, the fixed central line of the workpiece 8 is superposed with the rotating central line, the workpiece 8 rotates to move mainly, and the boring device 5 moves to move in a feeding manner, so that the position of the workpiece 8 in the axis direction can be ensured to be fixed, the boring can be facilitated, and the processing precision and efficiency of the workpiece 8 are improved.

Referring to fig. 4, 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 be slid parallel to the rotation axis of the headstock 3 by the second sliding mechanism 44. The locking device 42 is disposed on the turning tool cross table 43 and is used for fixing the second cutting 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 is slidable in a direction parallel to the rotation axis of the headstock 3 by the second slide mechanism 44.

While the turning tool cross table 43 itself can slide along a rotation axis perpendicular to the rotary head 3. Further, the second turning tool 41 is slidable in a direction parallel to the rotation axis of the turret 3 and in a direction perpendicular to the rotation axis of the turret 3 by the turning tool cross table 43.

The second lathe tool 41 slides to the position of the inner wall of the workpiece 8 along the direction vertical to the rotating axis of the rotating head frame 3, 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 circular surface of the workpiece 8. After the workpiece 8 is mounted on the rotary headstock 3, the clamping device 33 is adjusted to align the workpiece so that the axis of the inner hole of the workpiece 8 coincides with the rotation axis of the rotary headstock 3, and the second turning device 43, in which the boring device 5 is slid to the position of the inner wall of the workpiece 8, is engaged to machine the inner hole of the workpiece 8.

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

After the inner hole of the workpiece 8 is initially machined, the workpiece needs to be taken down from a deep hole boring and turning combined machining center for inner hole cladding treatment, the inner hole of the workpiece 8 after inner hole cladding is uneven, and if the axis of the inner hole is still used as an alignment reference at the moment, the error is large, and the precision and the efficiency are affected. Therefore, when the workpiece 8 is remounted on the headstock, the clamping device 33 is adjusted with reference to the outer circumferential surface turned by the first turning device 21 and the outer circumferential surface turned by the second turning device 43 to perform alignment of the workpiece 8, in which case the axis of the inner hole of the workpiece 8 coincides with the rotation axis of the headstock 3.

Fig. 4 shows a specific implementation of the second sliding mechanism 44. Specifically, the second slide mechanism 44 includes a second slide mechanism motor 441, a second slide mechanism supporting device 444, a second slide mechanism lead screw 442, and a second slide mechanism nut 443. One end of the second sliding mechanism screw 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 442 sequentially passes through the second sliding mechanism supporting device 444 and the second sliding mechanism nut 443; the second sliding mechanism screw rod 442 is sleeved with a nut 443 and is connected with the second sliding mechanism screw rod 442 through threads and moves on the second sliding mechanism screw rod 442; the second sliding mechanism nut 443 is connected to the turning tool cross table 43, and can drive the turning tool cross table 43 to move on the second sliding mechanism 44. Of course, the specific structure of the second sliding mechanism 44 is not limited to fig. 4 and the above description, and may be a rack and pinion, a belt conveyor, or the like.

Referring to fig. 5, the boring device 5 includes a boring cutter head 51, a cutter bar 52, a support base 53, and a third slide mechanism 54. The third sliding mechanism 54 is disposed on the bed 1, and the support base 53 is connected to the third sliding mechanism 54, and can be driven by the third sliding mechanism to slide 54 parallel to the rotation axis of the rotary head frame 3. One end of the support rod 52 is connected to the boring cutter head 51, and the other end of the support rod 52 is connected to the support base 53. The boring cutter head 51 is connected with a support base 53 through a cutter bar 52, and the support base 53 can slide on a third sliding mechanism 54 parallel to the rotation axis of the rotating headstock 3, thereby driving the boring cutter head 51 to slide. The workpiece 8 is rotated as a primary motion by the rotary headstock 3, and the movement of the boring cutter head 51 is a feed motion. The support of the tool bar 52 enables the boring head 51 to extend into the inner bore of the work piece 8. According to different production requirements, through holes or blind holes can be bored. The boring cutter head 51 is detachable and has various types including, but not limited to, a single-edge boring cutter, a double-edge boring cutter, etc.

Fig. 5 shows a specific implementation of the third sliding mechanism 54. Specifically, the third slide mechanism 54 includes a third slide mechanism motor 541, a third slide mechanism supporting device 542, a third slide mechanism lead screw 543, and a third slide 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 sequentially passes through the third sliding mechanism supporting device 542 and the third sliding mechanism nut 544; the third sliding mechanism nut 544 is sleeved on the third sliding mechanism lead screw 543, and is connected to and moves on the third sliding mechanism lead screw 543 through threads. The third slide mechanism nut 544 is connected to the support base 53, and can drive the support base 53 to move on the third slide mechanism 54. Of course, the specific structure of the third sliding mechanism 54 is not limited to fig. 5 and the above description, and may be a rack and pinion, a belt conveyor, or the like.

Referring to fig. 6, the deep hole boring and lathing compound machining center further includes an oil supply device 6, and the oil supply device 6 includes an oil supply mechanism 61 and a sliding mechanism 62. The oil supply mechanism 61 is arranged on the lathe bed 1 in a sliding mode, the oil supply device 61 slides along the lathe bed 1 in the direction close to the workpiece 8 during work, and after the work is finished, the oil supply device 61 slides along the lathe bed 1 in the direction far away from the workpiece 8. One end of the oil feeding mechanism 61 facing the workpiece 8 is open, and the other end of the oil feeding mechanism 61 is provided with a through hole 611 through which the cutter bar 52 of the boring device 5 passes and a liquid injection hole 614 into which the coolant is injected. 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.

The oil feed mechanism 61 is provided with a through hole 611 through which the cutter bar 52 of the boring device 5 can pass to perform hole machining of the workpiece 8. The diameter of the through hole 611 is matched with the diameter of the cutter rod 52 of the boring device 5, namely, the through hole 611 is in clearance fit with the cutter rod 52, and the cutter rod 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 matched with the workpiece 8. When the oil feeding mechanism works, the sliding mechanism 62 slides towards the direction close to the workpiece 8 in the oil feeding mechanism 61 under the action of external force, so that the end face of the sliding mechanism 62 is abutted against the end face of the workpiece 8, at the moment, the inner cavity of the workpiece 8 and the oil feeding device form a closed environment, and the high-pressure cooling liquid is injected into the oil feeding hole 614 to flush the inner cavity. After the operation is completed, the slide mechanism 62 is slid in the direction away from the workpiece 8 in the oiling mechanism 61 by the external force, and the end surface of the slide mechanism 62 is separated from the end surface of the workpiece 8. The high-pressure cooling liquid washes the inner cavity, and the wrapped chips are quickly discharged from the liquid discharge hole, so that the impact of the chips on the inner wall of the workpiece 8 and the boring cutter is reduced, and the processing quality is improved. Meanwhile, the cooling liquid flowing rapidly can reduce the temperature of a boring part and enhance the safety of processing and production.

As shown in fig. 6, the inner wall of the oil feeding 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, and the outer side surface of the sliding boss 621 is in sealing contact with the inner wall of the sliding groove 612. Two oil injection pipelines 613 penetrating through the oil feeding mechanism 61 are formed on the inner wall of the sliding groove 612. 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 slide mechanism 62 presses or releases the end surface of the workpiece 8.

During operation, the oil injection pipeline 613 far away from the workpiece 8 injects hydraulic oil into a gap between the sliding boss 621 in the sliding groove 612 and the oil injection pipeline 613 far away from the workpiece 8, the oil injection pipeline 613 near the workpiece 8 discharges the hydraulic oil between the sliding boss 621 and the oil injection pipeline 613 near the workpiece 8, and the sliding device 62 moves in a direction close to the workpiece 8 under the thrust of the hydraulic oil injected from the oil injection pipeline 613 far away from the workpiece 8 until the end surface of the sliding device 62 abuts against the end surface of the workpiece 8. Similarly, after the work is finished, the oil filling pipe 613 near the workpiece 8 fills the gap between the sliding boss 621 in the slide groove 612 and the oil filling pipe 613 near the workpiece 8 with hydraulic oil, the oil filling pipe 613 far from the workpiece 8 discharges the hydraulic oil between the sliding boss 621 and the oil filling pipe 613 far from the workpiece 8, and the sliding device 62 moves in the direction far from the workpiece 8 under the thrust of the hydraulic oil filled in the oil filling pipe 613 near the workpiece 8 until the end face of the sliding device 62 is away from the end face of the workpiece 8.

Of course, the control of the sliding mechanism 62 is not limited to the above-described manner, and may be a belt drive, a gear drive, or the like, and the sliding of the sliding mechanism 62 in the oiling mechanism 61 may be achieved.

With continued reference to FIG. 6, the oil feeding device 6 further includes a closing mechanism 63, wherein the closing mechanism 63 is connected to an end of the sliding mechanism 62 near the workpiece 8 and is capable of clamping the workpiece 8 and rotating with the workpiece 8. The closing mechanism 63 comprises a support assembly 631, a connecting assembly 632 and a clamping assembly 633; one end of the supporting component 631 is connected with one end of the sliding mechanism 62 close to the workpiece 8, and the other end of the supporting component 631 is provided with an annular clamping groove 636; the connecting assembly 632 is rotatably supported in the annular engaging groove 636; the clamping assembly 33 is connected to the connecting assembly 632 and extends beyond the support assembly 631 to clamp an end of the workpiece 8 adjacent the oil feed device 6.

The end face of the sliding device 62 directly abuts against the end face of the workpiece 8, so that a closed space is formed between the inner cavity of the workpiece 8 and the oil supply device 6 used in the deep hole boring and turning combined machining center, and the sliding device is suitable for a machining mode in which the main motion is the rotation of a cutter. When the machining method is a main motion of rotating the workpiece 8, the portion abutting the end face of the workpiece 8 needs to be capable of rotating synchronously, and therefore, the machining method further includes a closing mechanism 63. The support component 631 of the enclosure 63 is connected to one end of the slide 62 close to the workpiece 8, and can be driven by the slide 62 to move close to or away from the workpiece 8. The clamping member 633 of the closing mechanism 63 preliminarily clamps the outer circumference of the workpiece 8, and the slide device 62 pushes the closing mechanism 63 to slide in a direction to approach the workpiece 8. The connecting member 632 is rotatably supported within the annular pocket 636 and is rotatable within the annular pocket 636 in response to rotation of the workpiece 8. At this time, the inner cavity of the workpiece 8, the inner cavity of the support member 631, the inner cavity of the slide 62 and the inner wall of the oil feed mechanism 61 form a closed space. The boring chips are splashed in the whole space, and high-pressure cooling liquid is injected into the space for flushing and cooling.

The oil feeding device 6 further comprises a fourth sliding mechanism 64, and the oil feeding mechanism 1 is arranged on the fourth sliding mechanism 64 and slides along the direction of the rotation axis of the rotating head frame 3 under the driving of the fourth sliding mechanism 64. Fig. 6 shows a specific implementation of the fourth sliding mechanism 64. Specifically, the fourth slide mechanism 64 includes a fourth slide mechanism motor 641, a fourth slide mechanism gear 642, and a fourth slide mechanism rack 643.

The fourth slide mechanism motor 641 is connected to the fourth slide mechanism gear 642 and drives the fourth slide mechanism gear 642 to rotate. The fourth slide mechanism gear 642 meshes with the fourth slide mechanism rack 643, and the fourth slide mechanism gear 642 moves on the fourth slide mechanism rack 643 by rotating. The fourth sliding mechanism gear 642 is connected to the pumping mechanism 1, and drives the pumping mechanism 61 to move. The fourth slide mechanism rack 643 is parallel to the rotation axis of the turret 3, and the fourth slide mechanism gear 642 is fixed to the oiling mechanism 61 at a position enabling the oiling mechanism 61 to be coaxial with the turret 3.

Of course, the specific structure of the fourth sliding mechanism 64 is not limited to fig. 6 and the above description, and may be a screw nut, a conveyor belt, or the like.

Referring to fig. 8 to 9, the deep hole boring and turning combined machining center further includes a detection device 9. The detection device 9 is arranged between the rotating headstock 3 and the boring device 5; the detection device 9 can measure the linear distance from the detection probe to the designated position of the workpiece 8, process the data into a control signal and transmit the control signal to the automatic alignment device 7. The detection means 9 may be, but is not limited to, a distance sensor.

Referring to fig. 7, the deep hole boring and turning combined machining center further includes an automatic alignment device 7; the automatic alignment device 7 includes two alignment mechanisms 71 symmetrically disposed on two sides of the rotating head frame 3, and each alignment mechanism 71 includes a sliding assembly 711 and two screwing assemblies 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 assembly 711 is mounted on the side wall of the rotating head frame 3; both screw assemblies 712 are connected to the sliding assembly 711, and the two screw assemblies 712 are spaced apart in a direction parallel to the axis of the rotating head 3.

When the two alignment mechanisms 71 receive the control signal, the two sliding assemblies 711 synchronously slide along the same direction parallel to the axis of the rotating head frame 3, so that one of the screwing assemblies 712 of the two alignment mechanisms 71 moves to the working position; the two screwing assemblies 712 located in the working position simultaneously screw two symmetrical support jaws 331 of the central frame 33, with the screwing directions of the two screwing assemblies 712 being opposite.

Referring to fig. 8 to 9, the detection and control process is specifically as follows.

The detecting device 9 detects that a linear distance a from the position of the workpiece 8 clamped by the supporting claw 331 screwed by one of the screw members 712 to the detecting device 9; the linear distance from the position of the workpiece 8 clamped by the supporting claw 331 screwed by the other symmetrical screwing component 712 to the detection device 9 is b; the displacement distance of the detection device 9 from the plane on which the support jaw 331 corresponding to the calibration to be required is located on the steady 33 is c. The offset of the workpiece 8 is

The detection device 9 sends a control signal to the alignment mechanism 3, the two screw assemblies 712 are symmetrical, and the screw assembly 712 corresponding to the position of the workpiece at a distance a from the detection device 9 has a screw advance of

The screw-in amount of the screw member 712 corresponding to the position of the workpiece at the distance b from the detecting means 9 is

The screwed workpiece 8 is symmetrical with respect to the axis of rotation of the rotary head 3.

The rotating headstock 3 drives the center frame 33 to rotate 90 °, so that the supporting claw 331 in the vertical direction rotates to the horizontal direction, the screwing assembly 712 is controlled to continuously adjust the position of the workpiece 8 in the above-mentioned manner, and the end face center of the end face of the workpiece 8 is shifted to coincide with the rotation axis of the rotating headstock 3 through two mutually perpendicular adjustments.

In the same way, the end face of the other end of the workpiece 8 is continuously adjusted.

The detecting device 9 detects inward, and the linear distance a' from the position of the workpiece 8 clamped by the supporting claw 331 screwed by a screwing member 712 at the other end of the workpiece 8 to the detecting device 9; the position of the workpiece 8 clamped by the supporting claw 331 screwed by the other symmetrical screwing component 712 is at a linear distance b' from the detection device 9; the displacement distance of the detecting device 9 from the plane on which the supporting jaw 331 corresponding to the calibration to be required is located on the central frame 33 is c'. The other end of the workpiece is offset by an amount of

The detection device 9 sends a control signal to the alignment mechanism 3, the two screw assemblies 712 are symmetrical, and the screw assembly 712 corresponding to the position of the workpiece at a distance a' from the detection device 9 has a screw advance of

The screw-in amount of the screw member 712 corresponding to the position of the workpiece at the distance b' from the detecting means 9 is

The other end of the workpiece 8 after screwing is symmetrical with respect to the rotation axis of the rotary head 3.

The rotating headstock 3 drives the central frame 33 to rotate 90 °, so that the supporting claw 331 in the vertical direction rotates to the horizontal direction, the screwing component 712 is controlled by the method to continuously adjust the position of the other end of the workpiece 8, and the end face center of the other end of the workpiece 8 is shifted to coincide with the rotation axis of the rotating headstock 3 through two mutually perpendicular adjustments.

A straight line is determined according to the two points, the circle centers of the end surfaces at the two ends of the workpiece 8 are coincided with the rotation axis of the rotating head frame 3, and then the axis of the workpiece 8 is coincided with the rotation axis of the rotating head frame 2.

Referring to fig. 1 and 2, the deep hole boring and turning combined machining center further includes a welding robot 24; the welder robot 24 is provided on the follow-up headstock 2, and is capable of welding a positioner to an end of the workpiece 8 and welding a number or a label to the workpiece.

The welding robot 24 replaces manual welding, the efficiency is higher, the welding is firmer, the manpower resource is saved, and the automation of the deep hole boring and turning combined machining center is realized.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A deep hole boring and turning combined machining center is characterized by comprising a lathe body (1), a follow-up headstock (2), a first turning device (21), a rotating headstock (3), a second turning device (4) and a boring device (5);

the rotary headstock (3) is arranged on the lathe bed (1) and can be used for a workpiece (8) to pass through and drive the workpiece (8) to rotate;

the follow-up headstock (2) is connected to the lathe bed (1) in a sliding manner, is positioned on one side of the rotating headstock (3), is used for clamping the end part of the workpiece (8) or a positioning part connected with the end part of the workpiece (8), and rotates along with the workpiece (8) or the positioning part, and the rotating axis of the follow-up headstock (2) is superposed with the rotating axis of the rotating headstock (3);

the first turning device (21) is connected to the lathe bed (1), is positioned between the follow-up headstock (2) and the rotating headstock (3), and is used for turning the outer circular surface of the end part of the workpiece (8) or the outer circular surface of the positioning piece;

the boring device (5) is connected to the lathe bed (1) in a sliding manner, is positioned on one side, away from the follow-up headstock (2), of the rotating headstock (3) and is used for boring an inner hole of the workpiece (8);

the second turning device (4) is connected to the lathe bed (1), is positioned 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 circular surface of the workpiece (8) close to the rotating headstock.

2. The deep-hole boring-turning compound machining center according to claim 1, characterized in that the follow-up headstock (2) comprises a chuck (22) and a first sliding mechanism (23);

the first sliding mechanism (23) is arranged on the lathe 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 driving of the first sliding mechanism (23);

the axis of rotation of the chuck (22) coincides with the axis of rotation of the follower head (2);

the first turning device (21) is connected to the chuck (22).

3. Deep hole boring and turning composite machining center according to claim 1, 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 erected on the lathe bed (1), and the middle part of the support frame (31) is provided with an accommodating through hole (311) for a workpiece (8) to pass through;

the bushing (32) is rotatably supported in the accommodating through hole (311);

the clamping device (33) is coaxially connected to the bushing (32) and can clamp a 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.

4. The deep hole boring and turning composite machining center according to claim 1, wherein the second turning device (4) comprises 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 lathe bed (1);

the turning tool cross workbench (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 driving of the second sliding mechanism (44);

and the locking device (42) is arranged on the turning tool cross workbench (43) and used for fixing the second turning tool (41).

5. The deep hole boring and turning composite machining center according to claim 1, wherein the boring device (5) comprises a boring cutter head (51), a cutter bar (52), a support base (53) and a third sliding mechanism (54);

the third sliding mechanism (54) is arranged on the lathe 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 driving of the third sliding mechanism (54);

one end of the support rod (52) is connected with the boring cutter head (51), and the other end of the support rod (52) is connected with the support base (53).

6. The deep hole boring and turning compound machining center according to claim 1, further comprising an oil supply device (6), wherein the oil supply device (6) comprises an oil supply mechanism (61) and a sliding mechanism (62);

the oil supply mechanism (61) is arranged on the lathe bed (1) in a sliding mode, one end, facing the workpiece (8), of the oil supply mechanism (61) is open, and the other end of the oil supply mechanism (61) is provided with a through hole (611) for a cutter rod (52) of the boring device (5) to penetrate through and a liquid injection hole (614) for cooling liquid to be injected;

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 external force so as to press or release the end face of the workpiece (8);

a sliding groove (612) is formed in the inner wall of the oil supply mechanism (61), a sliding boss (621) extending into the sliding groove (612) is arranged on the outer side of the sliding mechanism (62), and the outer side surface of the sliding boss (621) is in sealing contact with the inner wall of the sliding groove (612); two oil injection pipelines (613) penetrating through the oil supply mechanism (61) are formed in the inner wall of the sliding groove (612);

the sliding boss (621) is positioned between the two oil injection pipelines (613); one of the oil injection pipelines (613) is injected with hydraulic oil, and the other oil injection pipeline (613) is discharged with the hydraulic oil, so that the sliding mechanism (62) is pressed or released on the end surface of the workpiece (8).

7. The deep hole boring and turning composite machining center according to claim 6, characterized in that the oil feeding device (6) further comprises a closing mechanism (63), wherein the closing mechanism (63) is connected with one end of the sliding mechanism (62) close to the workpiece (8) and can clamp the workpiece (8) and rotate along with the workpiece (8);

the closing mechanism (63) comprises a support assembly (631), a connecting assembly (632) and a clamping assembly (633);

one end of the supporting component (631) is connected with one end, close to the workpiece (8), of the sliding mechanism (62), and the other end of the supporting component (631) is provided with an annular clamping groove (6311);

the connecting assembly (632) is rotatably supported in the annular clamping groove (6311);

the clamping component (633) is connected with the connecting component (632) and extends out of the supporting component (631), and can clamp one end of the workpiece (8) close to the oil supply device (6).

8. The deep hole boring and turning compound machining center according to claim 1, characterized by further comprising an automatic alignment device (7); the automatic alignment device (7) comprises two alignment mechanisms (71) which are symmetrically arranged on two side surfaces of the rotary headstock (3), and each alignment mechanism (71) comprises a sliding assembly (711) and two screwing assemblies (712);

the clamping device (33) is a center frame (33);

the sliding assembly (711) is mounted on the side wall of the rotating head frame (3);

the two screw assemblies (712) are connected with the sliding assembly (711), and the two screw assemblies (712) are arranged at intervals along the direction parallel to the axis of the rotating head frame (3);

when the two alignment mechanisms (71) receive control signals, the two sliding assemblies (711) synchronously slide along the same direction parallel to the axis of the rotating headstock (3) so as to move one of the screw assemblies (712) of the two alignment mechanisms (71) to a working position; the two screwing assemblies (712) positioned at the working station synchronously screw two symmetrical supporting claws (331) on the center frame (33), and the screwing directions of the two screwing assemblies (712) are opposite.

9. The deep hole boring and turning compound machining center according to claim 8, characterized by further comprising a detection device (9);

the detection device (9) is arranged between the rotating headstock (3) and the boring device (5);

the detection device (9) can measure the linear distance from the detection probe to the designated position of the workpiece (8), process data into a control signal and transmit the control signal to the automatic alignment device (7).

10. The deep hole boring and turning composite machining center according to claim 1, characterized by further comprising a welding robot (24); the welder robot (24) is arranged on the follow-up headstock (2), can weld a positioning piece to the end part of the workpiece (8), and can weld a number or a label on the workpiece (8).