CN210435694U

CN210435694U - Camshaft machining turning and milling combined machining center

Info

Publication number: CN210435694U
Application number: CN201921311320.3U
Authority: CN
Inventors: 丁晓伟; 谢东栋; 王起; 陈锦华; 何建国
Original assignee: Zhejiang Jintang Machine Tool Co ltd
Current assignee: Zhejiang Jintang Machine Tool Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-01
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a camshaft processing turnning and milling combined machining center, including frame, main chuck assembly, turning mechanism and milling mechanism, turning mechanism, main chuck assembly and milling mechanism set up in the frame, and turning mechanism includes the base, can be on the base along the axial displacement's of main chuck assembly knife rest, and main chuck assembly sets up on the base, is provided with automatic carousel on the knife rest, is radial evenly fixed with a plurality of lathe tools along automatic carousel's direction of radius on automatic carousel's the terminal surface, is provided with feed mechanism between knife rest and automatic carousel. When a blank is machined, the main chuck assembly clamps the blank, then, the movable motor is started to drive the first screw rod to rotate, the tool rest is driven to move, the turning tool is driven to be close to the blank, then, the main chuck assembly rotates, and the feeding mechanism drives the turning tool to turn the blank. After the turning is finished, the milling mechanism directly processes the turned workpiece without secondary clamping, so that the secondary clamping is avoided and the processing precision is reduced.

Description

Camshaft machining turning and milling combined machining center

Technical Field

The utility model relates to a processing equipment, more specifically the utility model relates to a large-scale engine camshaft processing turn-milling combined machining center that says so.

Background

When a large engine camshaft is machined, the outer contour of the camshaft needs to be firstly machined, then the outer hub surface of the cam is milled, and a hole in the end surface of a shaft head is machined. Under the existing equipment, the contour of an outer circle needs to be turned on a lathe, the outer hub surface of a cam is milled on a special milling machine for a camshaft, and a hole on the end surface of a shaft head is processed on the special milling machine. And the three-time clamping easily generates positioning errors, so that the machining precision of the camshaft is low, and the machining efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a camshaft processing turnning and milling combined machining center can once the clamping just accomplish the processing that excircle cutting, cam outer hub face milled and spindle nose end face hole, has improved machining precision and machining efficiency to the area of equipment has been reduced.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a camshaft processing turnning and milling combined machining center, which comprises a frame, main chuck assembly, turning mechanism, and mill the mechanism, turning mechanism, main chuck assembly and mill the mechanism setting in the frame, turning mechanism includes the base, can be on the base along the axial displacement's of main chuck assembly knife rest, main chuck assembly sets up on the base, be provided with automatic carousel on the knife rest, it has a plurality of lathe tools to be radially evenly fixed with along the radius direction of automatic carousel on the terminal surface of automatic carousel, be provided with feed mechanism between knife rest and automatic carousel.

As a further improvement of the utility model, the automatic rotary table includes first seat, first motor, worm wheel and mounting disc, and first motor is fixed on first seat, and the worm rotates to be installed on first seat and is connected with first motor, and the mounting disc rotates to be installed on first seat, worm wheel and the coaxial fixed of mounting disc and with the worm meshing.

As the utility model discloses a further improvement is provided with the installation cavity in the base, the lateral wall of base be provided with the guide rail and with the installation cavity intercommunication be long banding guide hole, the bottom of knife rest be provided with the connecting block and with the guide slot of guide rail adaptation, be provided with moving mechanism in the installation cavity, moving mechanism includes the moving motor, first lead screw, the moving motor is fixed in the installation cavity, first lead screw rotates to be installed and is connected at the installation cavity and with the moving motor, the connecting block passes the guide hole and stretches into in the installation cavity, set up threaded hole on the connecting block, first lead screw and screw hole meshing.

As a further improvement of the utility model, the milling mechanism includes the chassis, the grudging post, the crane, mounting bracket and milling cutter subassembly, be provided with Y motor and Y lead screw on the chassis, be provided with the Y swivel nut on the grudging post, the Y motor is connected with the Y lead screw, Y lead screw and Y swivel nut meshing, be provided with Z motor and Z lead screw on the grudging post, be provided with the Z swivel nut on the crane, the Z motor is connected with the Z lead screw, Z lead screw and Z swivel nut meshing, be provided with X motor and X lead screw on the crane, be provided with the X swivel nut on the mounting bracket, the X motor is connected with the X lead screw, the X swivel nut meshes with the X lead screw, milling cutter unit.

As a further improvement of the utility model, the milling mechanism also comprises a tool magazine and an automatic tool changing mechanism, the tool magazine comprises a support, a plurality of rollers, a strip-shaped carrier and a power mechanism driving the rollers to rotate, the rollers and the power mechanism are arranged on the support, the power mechanism is connected with one of the rollers, a plurality of placing holes for placing milling cutters are evenly arranged on the carrier, the automatic tool changing mechanism comprises a fork frame, a fork shaft, a rotating mechanism, a turnover mechanism and a translation mechanism, the translation mechanism comprises a translation motor, a translation plate and a translation lead screw, the translation motor is fixed on the support, the translation lead screw is arranged on the support and is connected with the translation motor, a guide structure with the same direction as the translation lead screw is arranged between the translation plate and the support, a translation screw sleeve is fixed on the translation plate, the translation lead screw is meshed with the translation screw sleeve, the turnover mechanism comprises a turnover motor, a, the second speed reducer and the turnover motor are fixed on the translation plate and are connected with each other, the turnover plate is fixed at the output end of the second speed reducer, the fork shaft is rotatably installed on the turnover plate, the rotating mechanism comprises a rotating motor, a driving gear and a driven gear, the rotating motor is fixed on the turnover plate, the driving gear is fixed at the output end of the rotating motor, and the driven gear is coaxially fixed with the fork shaft and is meshed with the driving gear.

The beneficial effects of the utility model, when processing the blank, the blank is cliied to main chuck assembly, and then, the removal motor starts, drives first lead screw and rotates, drives the knife rest and removes, drives the lathe tool and is close to the blank, and then main chuck assembly rotates, and feed mechanism drives lathe tool turning blank. When a tool needs to be changed, the first motor drives the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the mounting disc to rotate, so that the required turning tool is moved to the working position. Through the arrangement, the blank is automatically processed, the tool is automatically changed, manual operation is not needed, and labor cost is reduced. After the turning is finished, the milling mechanism directly processes the turned workpiece without secondary clamping, so that the secondary clamping is avoided and the processing precision is reduced.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a block diagram of the main chuck assembly and the turning mechanism;

FIG. 3 is a block diagram of an automatic turntable;

FIG. 4 is a block diagram of the milling mechanism, guide holes and automatic tool changer;

FIG. 5 is a block diagram of a milling mechanism;

fig. 6 is a structural view of an automatic tool changer.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1 to 6, the camshaft machining turning and milling combined machining center of the present embodiment includes a frame 1, a main chuck assembly 2, a turning mechanism 3, and a milling mechanism 4, where the turning mechanism 3, the main chuck assembly 2, and the milling mechanism 4 are disposed on the frame 1, the turning mechanism 3 includes a base 31, and a tool rest 32 that can move on the base 31 along an axial direction of the main chuck assembly 2, the main chuck assembly 2 is disposed on the base 31, an automatic turntable 33 is disposed on the tool rest 32, a plurality of turning tools 34 are uniformly radially fixed on an end surface of the automatic turntable 33 along a radial direction of the automatic turntable 33, and a tool feeding mechanism is disposed between the tool rest 32 and the automatic turntable 33.

As a modified embodiment, the automatic rotating disk 33 includes a first seat 331, a first motor 332, a worm 333, a worm wheel 334 and a mounting disk 335, the first motor 332 is fixed on the first seat 331, the worm 333 is rotatably mounted on the first seat 331 and connected with the first motor 332, the mounting disk 335 is rotatably mounted on the first seat 331, and the worm wheel 334 is coaxially fixed with the mounting disk 335 and meshed with the worm 333.

As an improved specific embodiment, a mounting cavity is arranged in the base 31, a guide rail 311 and a guide hole 312 which is in a long strip shape and communicated with the mounting cavity are arranged on the side wall of the base 31, a connecting block 321 and a guide groove 322 which is matched with the guide rail 311 are arranged at the bottom of the tool holder 32, a moving mechanism is arranged in the mounting cavity, the moving mechanism comprises a moving motor 313 and a first screw rod 314, the moving motor 313 is fixed in the mounting cavity, the first screw rod 314 is rotatably arranged in the mounting cavity and connected with the moving motor 313, the connecting block 321 penetrates through the guide hole 312 and extends into the mounting cavity, a threaded hole is formed in the connecting block 321, and the first screw.

When a blank is machined, the main chuck assembly 2 clamps the blank, then, the moving motor 313 is started to drive the first screw rod 314 to rotate, the tool rest 32 is driven to move, the turning tool 34 is driven to be close to the blank, then, the main chuck assembly 2 rotates, and the feed mechanism drives the turning tool 34 to turn the blank. When tool change is required, the first motor 332 rotates the worm 333, the worm 333 rotates the worm wheel 334, and the worm wheel 334 rotates the mounting plate 335, thereby moving the desired turning tool 34 to the working position. Through the arrangement, the blank is automatically processed, the tool is automatically changed, manual operation is not needed, and labor cost is reduced. After the turning is finished, the milling mechanism directly processes the turned workpiece without multiple clamping, so that the reduction of the processing precision due to multiple clamping is avoided.

As an improved specific embodiment, the milling mechanism 4 includes a bottom frame 41, an upright frame 42, a lifting frame 43, a mounting frame 44 and a milling cutter assembly 45, a Y motor 51 and a Y lead screw 52 are arranged on the bottom frame 41, a Y swivel nut is arranged on the upright frame 42, the Y motor 51 is connected with the Y lead screw 52, the Y lead screw 52 is meshed with the Y swivel nut, a Z motor 53 and a Z lead screw 54 are arranged on the upright frame 42, a Z swivel nut is arranged on the lifting frame 43, the Z motor 53 is connected with the Z lead screw 54, the Z lead screw 54 is meshed with the Z swivel nut, an X motor 55 and an X lead screw 56 are arranged on the lifting frame 43, an X swivel nut is arranged on the mounting frame 44, the X motor 55 is connected with the X lead screw 56, the X swivel nut is meshed with the X lead screw 56.

As an improved specific embodiment, the milling mechanism 4 further includes a tool magazine 6 and an automatic tool changing mechanism 7, the tool magazine 6 includes a support 61, a plurality of rollers 62, a belt-shaped carrier 63 and a power mechanism for driving the rollers 62 to rotate, the plurality of rollers 62 and the power mechanism are disposed on the support 61, the power mechanism is connected with one of the rollers 62, a plurality of placing holes 64 for placing milling cutters are uniformly disposed on the carrier 63, the automatic tool changing mechanism 7 includes a fork frame 71, a fork shaft 72, a rotating mechanism, a turnover mechanism and a translation mechanism, the translation mechanism includes a translation motor 75, a translation plate 73 and a translation screw rod 74, the translation motor 75 is fixed on the support 61, the translation screw rod 74 is disposed on the support 61 and connected with the translation motor 75, a guide structure with the same direction as the translation screw rod 74 is disposed between the translation plate 73 and the support 61, a translation screw sleeve 76 is fixed on the translation plate 73, translation lead screw 74 meshes with translation swivel nut 76, tilting mechanism includes upset motor 77, second reduction gear 78 and returning face plate 79, second reduction gear 78 and upset motor 77 are fixed on translation board 73 and interconnect, returning face plate 79 is fixed on the output of second reduction gear 78, fork 72 rotates and installs on returning face plate 79, slewing mechanism is including rotating motor 80, driving gear 81 and driven gear 82, rotating motor 80 fixes on returning face plate 79, driving gear 81 fixes on rotating motor 80's output, driven gear 82 and fork 72 coaxial fixed just mesh with driving gear 81.

After turning, the Y motor 51 drives the Y lead screw 52 to rotate, the vertical frame 42 is driven to move towards the blank, the X motor 55 drives the X lead screw 56 to rotate, the vertical frame 42 is driven to move towards the blank, the milling cutter assembly 45 is moved above the blank, the milling cutter assembly 45 is started, and the Z motor 53 drives the Z lead screw 54 to rotate, so as to drive the milling cutter assembly 45 to process the blank. When a tool needs to be changed, the power mechanism drives the roller 62 to rotate, drives the carrier 63 to rotate, moves the milling cutter to the position for changing the tool, then, the translation motor 75 moves the translation plate 73, the inversion motor 77 inverts the inversion plate 79 to move the fork 71 to the outside of the milling cutter, and then, the rotation motor a62 rotates to align the fork 71 with the milling cutter, then the translation motor 75 drives the translation screw rod 74 to rotate reversely, so that the fork frame 71 forks the milling cutter to be replaced, after the milling cutter is forked, the translation motor 75 rotates reversely again, the milling cutter is taken out from the placing hole 64, then, the rotation motor 80 rotates the fork 71, preventing the tool magazine 6 from interfering with the movement of the tool changing mechanism, then the turning motor 77 drives the turning plate 79 to turn, so that the milling cutter turns to the other end to be in a cutter changing position, and then the cutter changing action is completed through the coordination of the lifting and translation movement of the milling cutter assembly 45. Two workings can be arranged on the fork frame 71, so that the work of tool removal and tool changing can be completed in one movement, and the working efficiency is improved.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a camshaft processing turn-milling combined machining center which characterized in that: including frame (1), main chuck assembly (2), turning mechanism (3) and mill mechanism (4), turning mechanism (3), main chuck assembly (2) and mill mechanism (4) and set up on frame (1), turning mechanism (3) include base (31), can follow tool rest (32) of the axial displacement of main chuck assembly (2) on base (31), main chuck assembly (2) set up on base (31), be provided with automatic turntable (33) on tool rest (32), be radial evenly fixed with a plurality of lathe tools (34) along the radius direction of automatic turntable (33) on the terminal surface of automatic turntable (33), be provided with feed mechanism between tool rest (32) and automatic turntable (33).

2. The camshaft machining turn-milling combined machining center of claim 1, characterized in that: the automatic rotating disc (33) comprises a first seat (331), a first motor (332), a worm (333), a worm wheel (334) and a mounting disc (335), wherein the first motor (332) is fixed on the first seat (331), the worm (333) is rotatably installed on the first seat (331) and connected with the first motor (332), the mounting disc (335) is rotatably installed on the first seat (331), and the worm wheel (334) is coaxially fixed with the mounting disc (335) and meshed with the worm wheel (333).

3. The camshaft machining turn-milling combined machining center of claim 1, characterized in that: be provided with the installation cavity in base (31), the lateral wall of base (31) is provided with guide rail (311) and is rectangular form guide hole (312) with the installation cavity intercommunication, the bottom of knife rest (32) is provided with connecting block (321) and guide slot (322) with guide rail (311) adaptation, be provided with moving mechanism in the installation cavity, moving mechanism is including moving motor (313), first lead screw (314), moving motor (313) are fixed in the installation cavity, first lead screw (314) rotate to be installed in the installation cavity and be connected with moving motor (313), connecting block (321) pass guide hole (312) and stretch into in the installation cavity, set up threaded hole on connecting block (321), first lead screw (314) and threaded hole meshing.

4. The camshaft machining turn-milling combined machining center of claim 1, characterized in that: the milling mechanism (4) comprises a base frame (41), a vertical frame (42), a lifting frame (43), an installation frame (44) and a milling cutter assembly (45), wherein a Y motor (51) and a Y screw rod (52) are arranged on the base frame (41), a Y swivel nut is arranged on the vertical frame (42), the Y motor (51) is connected with the Y screw rod (52), the Y screw rod (52) is meshed with the Y swivel nut, a Z motor (53) and a Z screw rod (54) are arranged on the vertical frame (42), a Z swivel nut is arranged on the lifting frame (43), the Z motor (53) is connected with the Z screw rod (54), the Z screw rod (54) is meshed with the Z swivel nut, an X motor (55) and an X screw rod (56) are arranged on the lifting frame (43), an X swivel nut is arranged on the installation frame (44), the X motor (55) is connected with the X screw rod (56), and the X swivel nut is meshed with the X screw rod (56), the milling cutter assembly (45) is mounted on a mounting bracket (44).

5. The camshaft machining turn-milling combined machining center of claim 1, characterized in that: the milling mechanism (4) further comprises a tool magazine (6) and an automatic tool changing mechanism (7), the tool magazine (6) comprises a support (61), a plurality of rollers (62), a band-shaped carrier (63) and a power mechanism driving the rollers (62) to rotate, the rollers (62) and the power mechanism are arranged on the support (61), the power mechanism is connected with one of the rollers (62), a plurality of placing holes (64) for placing milling cutters are uniformly arranged on the carrier (63), the automatic tool changing mechanism (7) comprises a fork frame (71), a fork shaft (72), a rotating mechanism, a turnover mechanism and a translation mechanism, the translation mechanism comprises a translation motor (75), a translation plate (73) and a translation screw rod (74), the translation motor (75) is fixed on the support (61), the translation screw rod (74) is arranged on the support (61) and is connected with the translation motor (75), the utility model discloses a translation mechanism, including translation board (73) and support (61), be provided with the direction and the same guide structure of translation lead screw (74) between translation board (73) and support (61), be fixed with translation swivel nut (76) on translation board (73), translation lead screw (74) and translation swivel nut (76) meshing, tilting mechanism includes upset motor (77), second reduction gear (78) and upset board (79), second reduction gear (78) and upset motor (77) are fixed on translation board (73) and interconnect, upset board (79) are fixed on the output of second reduction gear (78), fork shaft (72) rotate to be installed on upset board (79), slewing mechanism includes rotating motor (80), driving gear (81) and driven gear (82), rotating motor (80) are fixed on upset board (79), driving gear (81) are fixed on the output of rotating motor (80), the driven gear (82) is coaxially fixed with the fork shaft (72) and meshed with the driving gear (81).