CN212496500U

CN212496500U - Deep hole boring car combined machining center headstock

Info

Publication number: CN212496500U
Application number: CN202022078810.2U
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: 2021-02-09
Anticipated expiration: 2030-09-21

Abstract

The utility model provides a deep hole boring car combined machining center headstock relates to the deep hole processing field to solve the lower technical problem of current deep hole boring machine precision. The deep hole boring lathe composite machining center headstock comprises a support frame, a bushing, a clamping device and a driving device; the middle part of the support frame is provided with an accommodating through hole for the workpiece to pass through; the bushing is rotatably supported in the accommodating 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 in transmission connection with the bushing, and the bushing can be driven to rotate. The utility model discloses a deep hole boring car combined machining center headstock can enough fix the work piece and can drive the work piece rotation again, has improved the machining precision and the machining efficiency of work piece.

Description

Deep hole boring car combined machining center headstock

Technical Field

The utility model relates to a BTA field especially relates to a BTA car combined machining center headstock.

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.

In the prior art, the rotation of a boring cutter is generally adopted as a main motion, and the movement of the boring cutter or a workpiece is a feeding motion. When the boring cutter is moved into a feeding motion, a workpiece is fixed, the precision completely depends on the positioning of the boring cutter, and the precision is difficult to control because the boring cutter rotates and moves; when the workpiece movement is adopted as the feeding movement, the workpiece and the boring cutter generate relative movement, and the movement track of the large and heavy workpiece is not easy to control, so that the machining precision is influenced.

Disclosure of Invention

An object of the utility model is to provide a deep hole boring car combined machining center headstock for fixed and rotatory work piece makes the rotation of work piece be the primary motion, and the removal of boring cutter is feed motion, to large-scale, heavy work piece, avoids its horizontal direction's removal, and is fixed and rotatory integrative, is favorable to improving its machining precision and machining efficiency.

The utility model discloses a technique be: a deep hole boring lathe composite machining center headstock comprises a support frame, a bush, a clamping device and a driving device; the middle part of the support frame is provided with an accommodating through hole for the workpiece to pass through; the bushing is rotatably supported in the accommodating 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 in transmission connection with the bushing, and the bushing can be driven to rotate.

As the further optimization of the scheme, a through hole is formed in the inner wall of the accommodating through hole, and the driving device partially extends into the through hole to be connected with the lining.

As a further optimization of the scheme, the driving device comprises a gear box and a driving gear ring; the gear box is connected with the supporting frame; the driving gear ring is arranged on the outer side of the lining and meshed with an output gear of the gear box.

As the further optimization of the scheme, the gearbox further comprises a synchronous pulley, the synchronous pulley is coaxially connected with an input gear of the gearbox, and the input gear is driven to rotate by the synchronous pulley.

According to the scheme, a flat key is arranged between the driving gear ring and the bushing, and the flat key is connected with the driving gear ring and clamped in a clamping groove in the outer side of the bushing.

According to the scheme, the two ends of the bushing are provided with clamping devices, each clamping device comprises a chuck, and each chuck comprises a plurality of clamping jaws capable of clamping a workpiece.

According to the scheme, the two ends of the bushing are provided with clamping devices, each clamping device comprises a fixture, and each fixture comprises a shell, a screw rod and a top block; the ejector block is arranged in the shell and can slide along the inner wall of the shell; the screw rod is connected with the ejector block through threads, and the ejector block can be driven to slide when the screw rod rotates.

As a further optimization of the scheme, a rolling bearing is arranged between the support frame and the lining, and an installation ring groove is formed in the inner wall of the support frame; the outer ring of the rolling bearing is clamped in the groove of the mounting ring groove, and the outer side of the lining is sleeved with the inner ring of the rolling bearing to rotatably support the lining.

As a further optimization of the scheme, a thrust bearing is further arranged between the support frame and the bush, and the support frame is provided with a thrust boss positioned at the opening of the accommodating through hole; the outer end face of the outer side thrust washer of the thrust bearing is abutted against the inner side face of the thrust boss, and the outer circumferential face of the outer side thrust washer of the thrust bearing is abutted against the support frame; the outer end face of the inner side thrust washer of the thrust bearing is abutted to the inner ring of the rolling bearing through the retainer ring, and the outer circumferential face of the inner side thrust washer of the thrust bearing is abutted to the bush.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a pair of compound machining center headstock of deep hole boring car, this compound machining center headstock of deep hole boring car can pass the support frame at the during operation to it is fixed to be pressed from both sides by the clamping device of coaxial coupling in bush. The bush is driven by the driving device, rotates in the accommodating through hole of the supporting frame, drives the clamping device to rotate, and then the clamping device drives the workpiece to rotate. The headstock of the deep hole boring lathe composite machining center can fix a workpiece and drive the workpiece to rotate, the fixed central line of the workpiece is superposed with the rotating central line, the workpiece rotates as a main motion, the boring cutter moves as a feeding motion, the position of the workpiece in the axis direction can be guaranteed to be fixed, the boring can be facilitated, and the machining precision and the machining efficiency of the workpiece are improved.

Drawings

Fig. 1 is a structural diagram of a deep hole boring lathe composite machining center headstock provided by an embodiment of the invention;

FIG. 2 is a block diagram of a gear box according to an embodiment of the present invention;

fig. 3 is a structural diagram of a fixture 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 the functions, methods, 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 lathe composite machining center headstock, and please refer to fig. 1 to 3 in the attached drawings of the specification together.

Referring to fig. 1, the deep hole boring and turning composite machining center headstock comprises a support frame 1, a bushing 2, a clamping device 3 and a driving device 4. The middle part of the support frame 1 is provided with an accommodating through hole 11 for a workpiece to pass through; the bush 2 is rotatably supported in the receiving through hole 11, that is, the support frame 1 provides support for the bush 2, and the bush 2 can rotate in the receiving through hole 11. The clamping device 3 is coaxially connected to the bush 2, i.e. the axis of rotation of the clamping device 3 coincides with the axis of rotation of the bush 2 and the clamping device 3 is able to clamp the workpiece passing through; the driving device 4 is connected to the support frame 1 and is in transmission connection with the bush 2, and can drive the bush 2 to rotate.

When the deep hole boring and turning combined machining center headstock provided by the embodiment works, a workpiece can penetrate through the support frame 1 and is clamped and fixed by the clamping device 3 coaxially connected to the bushing 2. The bush 2 is driven by the driving device 4 to rotate in the accommodating through hole 11 of the support frame 1, so as to drive the clamping device 3 to rotate, and further the clamping device 3 drives the workpiece to rotate. The headstock of the deep hole boring lathe composite machining center can fix a workpiece and drive the workpiece to rotate, the fixed central line of the workpiece is superposed with the rotating central line, the workpiece rotates as a main motion, the boring cutter moves as a feeding motion, the position of the workpiece in the axis direction can be guaranteed to be fixed, the boring can be facilitated, and the machining precision and the machining efficiency of the workpiece are improved.

With continued reference to fig. 1, a through hole 111 is formed in the inner wall of the receiving through hole 11, and the driving device 4 partially extends into the through hole 111 to be connected with the bushing 2.

The power of the driving device 4 can be transmitted to the bush 2 through the through hole 11, and the bush 2 is rotated, thereby rotating the clamping device 3 connected to the bush 2.

Fig. 1 and 2 show a specific embodiment of the drive device 4. Specifically, the drive device 4 includes a gear box 41 and a drive ring gear 42; the gear box 41 is connected with the support frame 1; the driving ring gear 42 is disposed outside the liner 2, and the driving ring gear 42 is meshed with the output gear 411 of the gear case 41.

As shown in fig. 1, the output gear 411 of the gear case 41 extends into the through-hole 11, the drive ring gear 42 also extends into the through-hole 11, and the output gear 411 of the gear case 41 and the drive ring gear 42 mesh with each other in the through-hole 11. Of course, the driving ring gear 42 may extend out of the supporting frame 1 through the through hole 11 to be engaged with the output gear 411 of the gear box 41, or the output gear 411 of the gear box 41 may extend into the accommodating through hole 11 of the supporting frame 1 through the through hole 11 to be engaged with the driving ring gear 42.

Fig. 2 shows a specific structure of the gear box 41 of the present embodiment, and the gear box 41 includes a first gear 413, a second gear 415, a third gear 416, a first transmission shaft 414, and a second transmission shaft 417 in addition to the input gear 412 and the output gear 411. Wherein, the first gear 413 and the second gear 415 are respectively installed at two ends of the first transmission shaft 414, and the first gear 413 is meshed with the input gear 412; the third gear 416 and the output gear 411 are respectively installed at both ends of the second transmission shaft, and the third gear 416 is engaged with the second gear 415. The number of teeth of the first gear 413 is greater than that of the input gear 412, and the number of teeth of the second gear 415 is smaller than that of the third gear 417.

The gearbox 41 can realize the functions of speed reduction and torque increase, so that the headstock of the deep hole boring and turning combined machining center has reasonable rotating speed, and can drive workpieces with larger mass.

Of course, the specific structure of the gear box 41 is not limited to fig. 2 and the above description, and may be a bevel gear reduction box, a worm gear reduction box, or the like.

The driving device 4 is not limited to the structure shown in fig. 1 and 2, and the driving device 4 may be other structures capable of driving the bushing 2 to rotate. For example, the driving device 4 includes a gear case 41, a worm wheel, and a worm; the worm is connected with an output shaft of the gear box 41, the worm wheel is arranged on the outer side surface of the lining 2, and the worm wheel is meshed with the worm; the output shaft of the gear box 41 drives the worm to rotate, and the worm drives the worm wheel to rotate, thereby rotating the bush 2 and the clamping device 3 mounted on the bush 2.

As shown in fig. 1, the deep hole boring and boring combined machining center headstock further comprises a synchronous pulley, the synchronous pulley 7 is coaxially connected with an input gear 412 of the gear box 41, and the input gear 412 is driven to rotate by the synchronous pulley 7.

The motor drives the synchronous pulley 7 through the synchronous belt, and the synchronous pulley 7 drives the input gear 412 of the gear box 41 to rotate. The synchronous belt can prevent slipping, cutting stability is guaranteed, and machining precision is guaranteed.

As shown in fig. 1, an embodiment is shown in which the driving ring gear 42 is connected with the bush 2 by using a flat key 61, the flat key 61 is arranged between the driving ring gear 42 and the bush 2, and the flat key 61 is connected with the driving ring gear 42 and is clamped in a clamping groove on the outer side of the bush 2. The driving ring gear 42 is clamped with the bush 2 through the flat key 61, and drives the bush 2 to rotate. The driving gear ring 42 and the lining 2 can also be connected by welding, interference connection and the like.

As shown in fig. 1, the bushing 2 is rotatably supported in the support frame 1, the rolling bearing 51 is disposed between the support frame 1 and the bushing 2, an installation ring groove is formed in an inner wall of the support frame 1, an outer ring of the rolling bearing 51 is clamped in a groove of the installation ring groove, and an inner ring of the rolling bearing 51 is sleeved outside the bushing 2 to rotatably support the bushing 2. That is, the bush 2 is supported by the rolling bearing 51 to be rotatable inside the support frame 1. The rolling bearing 51 may be a deep groove ball bearing, a cylindrical roller bearing, a tapered roller bearing, or the like.

In addition, a thrust bearing 52 is arranged between the support frame 1 and the bush 2, and the support frame 1 is provided with a thrust boss positioned at the opening of the accommodating through hole 11. The outer end face of the outer thrust washer of the thrust bearing 52 abuts against the inner side face of the thrust boss, and the outer circumferential face of the outer thrust washer of the thrust bearing 52 abuts against the support frame 1. The outer end surface of the inner thrust washer of the thrust bearing 52 abuts against the inner ring of the rolling bearing 51 via a retaining ring, and the outer circumferential surface of the inner thrust washer of the thrust bearing 52 abuts against the bush 2.

The thrust bearing 25 is capable of bearing the axial force of the bush 2, limiting the position of the bush 2 in the support 1 and preventing the axial displacement of the bush 2 in the support 1.

The middle part of the bush 2 also comprises a through hole, the two ends of the bush 2 are provided with clamping devices 3, and the clamping devices 3 are used for clamping the head and tail ends of a workpiece passing through the through hole of the bush. The clamping device 3 can have a variety of specific configurations, as long as it is capable of achieving a fixed connection with the bush 2 and clamping the workpiece.

For example, fig. 1 shows a bushing 2 provided with said clamping means 3 at both ends, the clamping means 3 comprising a chuck 31, the chuck 31 comprising a plurality of jaws 311 capable of clamping a workpiece.

Chuck 31 is the ring form and coaxial with bush 2, passes through bolt fixed connection with bush 2, and a plurality of jack catch 311 that includes on chuck 31, evenly distributed is on chuck 31, can use the centre of a circle of chuck 31 as the center simultaneously, is close to or keeps away from. When the clamping jaws 311 at the two ends of the bush 2 are close to each other, the workpiece is clamped, and the workpiece is ensured to be overlapped with the axis of the bush 2; the claw 311 is simultaneously moved away to release the workpiece, and the workpiece can be replaced.

Fig. 3 shows another concrete structure of the clamping device 3, the clamping device 3 is arranged at two ends of the bushing 2, the clamping device comprises a fixture 32, and the fixture 32 comprises a shell 321, a screw rod 322 and a top block 323. The top block 323 is arranged in the shell 321 and can slide along the inner wall of the shell 321; the screw rod 322 is in threaded connection with the ejector block 323, and the screw rod 322 can drive the ejector block 323 to slide when rotating.

The plurality of fixtures 32 may be provided on the chuck 31, or may be directly fixedly connected to the end surface of the bush 2. When a workpiece is placed in the bushing 2, a tool such as a wrench is used to rotate the screw rod 322, the screw rod 322 is in threaded connection with the ejector block 323, the ejector block 323 moves towards the direction close to the workpiece until the ejector block 323 abuts against the surface of the workpiece, and then the workpiece is clamped by the plurality of clamps 32. When the workpiece needs to be taken out of the bushing 2, the screw rod 322 is rotated reversely by a tool such as a wrench, so that the ejector block 323 moves away from the workpiece until the ejector block 323 releases the workpiece.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 lathe composite machining center headstock is characterized by comprising a support frame (1), a bush (2), a clamping device (3) and a driving device (4);

the middle part of the support frame (1) is provided with an accommodating through hole (11) for a workpiece to pass through;

the bushing (2) is rotatably supported in the accommodating through hole (11);

the clamping device (3) is coaxially connected with the bushing (2) and can clamp a workpiece passing through;

the driving device (4) is connected to the support frame (1) and is in transmission connection with the bushing (2) and can drive the bushing (2) to rotate.

2. The headstock of a deep hole boring and turning composite machining center according to claim 1, characterized in that a through hole (111) is formed in the inner wall of the accommodating through hole (11), and the driving device (4) partially extends into the through hole (111) to be connected with the bushing (2).

3. Deep hole boring and turning composite machining centre headstock according to claim 1, characterised in that the drive means (4) comprises a gear box (41) and a drive ring gear (42);

the gear box (41) is connected with the support frame (1);

the drive ring gear (42) is arranged outside the bushing (2) and is meshed with an output gear (411) of the gear box (41).

4. The deep hole boring and turning composite machining center headstock according to claim 3, characterized by further comprising a synchronous pulley, wherein the synchronous pulley (7) is coaxially connected with an input gear (412) of the gear box (41), and the input gear (412) is driven to rotate by the synchronous pulley (7).

5. The deep hole boring and turning composite machining center headstock according to claim 3 is characterized in that a flat key (61) is arranged between the driving gear ring (42) and the bushing (2), and the flat key (61) is connected with the driving gear ring (42) and clamped in a clamping groove on the outer side of the bushing (2).

6. Deep hole boring and turning composite machining centre headstock according to claim 1, characterized in that the clamping device (3) is provided at both ends of the bushing (2), the clamping device (3) comprising a chuck (31), the chuck (31) comprising a plurality of jaws (311) capable of clamping a workpiece.

7. The deep hole boring and turning composite machining center headstock according to claim 1, characterized in that the clamping device (3) is arranged at both ends of the bushing (2), the clamping device comprises a fixture (32), and the fixture (32) comprises a shell (321), a screw rod (322) and a top block (323);

the top block (323) is arranged in the shell (321) and can slide along the inner wall of the shell (321); the screw rod (322) is connected with the ejector block (323) through threads, and the screw rod (322) can drive the ejector block (323) to slide when rotating.

8. The headstock of a deep hole boring and turning composite machining center according to claim 1, characterized in that a rolling bearing (51) is arranged between the support frame (1) and the bushing (2), and an installation ring groove is opened on the inner wall of the support frame (1);

the outer ring of antifriction bearing (51) is blocked and is located in the recess of installation annular, the inner circle cover of antifriction bearing (51) is located the outside of bush (2) is in order to rotate the support bush (2).

9. The deep hole boring and turning composite machining center headstock according to claim 8, characterized in that a thrust bearing (52) is further arranged between the support frame (1) and the bushing (2), and the support frame (1) is provided with a thrust boss at the opening of the accommodating through hole (11);

the outer end face of an outer side thrust washer of the thrust bearing (52) is abutted against the inner side face of the thrust boss, and the outer circumferential face of the outer side thrust washer of the thrust bearing (52) is abutted against the support frame (1);

the outer end face of the inner side thrust washer of the thrust bearing (52) is abutted to the inner ring of the rolling bearing (51) through a retainer ring, and the outer circumferential face of the inner side thrust washer of the thrust bearing (52) is abutted to the bushing (2).