CN112045199B

CN112045199B - Special machine tool for machining chute of zigzag labyrinth seal part

Info

Publication number: CN112045199B
Application number: CN202010849592.XA
Authority: CN
Inventors: 冯善刚
Original assignee: Chuzhou Jiaqing Numerical Control Co ltd
Current assignee: Chuzhou Jiaqing Numerical Control Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-16
Anticipated expiration: 2040-08-21
Also published as: CN112045199A

Abstract

The invention discloses a special machine tool for machining a zigzag labyrinth seal part chute, which relates to the technical field of machine tool automation equipment and comprises a machine body and a chuck, wherein the chuck is arranged on the machine body, a first feeding mechanism is arranged on the machine body and used for machining an axial groove of a workpiece clamped on the chuck, and a second feeding mechanism is also arranged on the machine body and used for machining a radial groove of the workpiece clamped on the chuck; through set up the worm wheel in mounting bracket two and set up the cam in the pivot, can realize the dynamic sweeps that produces in the turning process, guaranteed the effective of a plurality of lathe tools synchronous cutting to go on.

Description

Special machine tool for machining chute of zigzag labyrinth seal part

Technical Field

The invention relates to the technical field of machine tool automation equipment, in particular to a special machine tool for machining a chute of a zigzag labyrinth seal component.

Background

The existing two-axis numerical control lathe can only process a radial sealing groove and an axial sealing groove, but cannot process a radial inclined groove type labyrinth groove, and the existing two-axis numerical control lathe can only reserve an inclined groove type labyrinth groove in the numerical control lathe processing and then is processed by a common lathe.

The processing mode mainly has the following disadvantages: the processing mode of clamping for two times results in lower processing efficiency and high operation difficulty; the sweeps that the turning in-process produced can't automatic discharge in the chute, adopts to spray cutting fluid to wash out the sweeps usually, nevertheless along with the depth of cut of chute grow gradually, the relative inslot portion of cutting fluid of liquid outlet can produce the blind area, leads to the unable effective discharge of sweeps.

Disclosure of Invention

The invention aims to provide a special machine tool for machining a zigzag labyrinth seal part chute, which aims to overcome the defects caused in the prior art.

The utility model provides a special lathe of zigzag labyrinth seal part chute processing, includes fuselage and chuck, the chuck is installed on the fuselage, install first feed mechanism on the fuselage for being used for carrying out axial groove to the work piece of centre gripping on the chuck and processing, still install second feed mechanism on the fuselage, in order to be used for carrying out radial groove to the work piece of centre gripping on the chuck and process, the fixed support frame that is provided with on the fuselage, third feeding mechanism is installed to second feed mechanism's upper end, third feeding mechanism rotates and sets up in the upper end of support frame, and is used for carrying out the simultaneous processing of multichannel chute to zigzag labyrinth seal part, and third feeding mechanism includes mounting bracket two, driving motor three, lead screw three and slider three, mounting bracket two rotates to be connected on slider two, driving motor three is installed in the one end of mounting bracket two, the one end of lead screw three is connected on driving motor three's output, the other end of the screw rod III is rotatably connected to the other end of the mounting frame II, the slider III is in threaded connection with the screw rod III, the upper end of the support frame is rotatably connected with a sliding plate, two symmetrically-arranged sliding grooves are formed in the side end of the mounting frame II, the upper end of the sliding plate is slidably arranged in the sliding grooves, the upper end of the slider III is fixedly connected with a cutter tower, a plurality of uniformly-distributed guide holes are formed in the cutter tower, sliding columns are slidably arranged in the guide holes, a cutter rest is fixed at the upper end of each sliding column, a cutter placing groove is formed in the upper end of the cutter rest, a reed is arranged at the inner side end of the cutter placing groove, a turning tool is arranged in the cutter placing groove, the side end of the turning tool abuts against the end surface of the reed, a steering engine is further mounted at the lower end of the cutter, the other end of the oscillating bar is hinged with a second connecting rod, the other end of the second connecting rod is hinged with the other end of the sliding ring, the lower end of the sliding column is arranged in the sliding ring in a sliding mode, the cutter tower is further connected with a top plate through a screw rod, a pressing plate is fixed at the lower end of the top plate, and the lower end of the pressing plate is abutted to the upper end of the turning tool.

Preferably, the lower end of the top plate is further fixed with a guide pillar, the guide pillar is provided with a guide sleeve in a sliding mode, a liquid spraying head is fixed on the guide sleeve, the lower end of the guide sleeve is further arranged on the cutter tower in a sliding mode through a U-shaped sliding block, two guide grooves which are symmetrically arranged are further formed in the side end of the second mounting frame, a jacking piece is arranged in the guide grooves in a sliding mode, a worm wheel is arranged in the second mounting frame through a rotating shaft and meshed with the three phases of the lead screw, the other end of the rotating shaft penetrates through the second mounting frame and is connected with a cam, and the outer edge face of the cam is abutted.

Preferably, the first feeding mechanism comprises a first driving motor, a first lead screw and a first sliding block, the first driving motor is installed at the side end of the machine body, one end of the first lead screw is connected to the output end of the first driving motor, the other end of the first lead screw is rotatably connected to the machine body and is arranged under the chuck, and the first sliding block is in threaded connection with the first lead screw.

Preferably, the second feeding mechanism comprises a first mounting frame, a second driving motor, a second lead screw and a second slider, the first mounting frame is arranged on the machine body through guide rods symmetrically arranged, the lower end of the first mounting frame is fixed on the first slider, the second driving motor is arranged in the first mounting frame, one end of the second lead screw is connected to the output end of the second driving motor, the other end of the second lead screw is connected to the other end of the first mounting frame in a rotating mode, and the second slider is connected to the second lead screw in a threaded mode.

Preferably, the tail ends of the turning tools are inserted into the inner wall of the tool holding groove, and the body of the turning tools is axially parallel to the lead screw.

Preferably, the cutting edges of a plurality of turning tools are collinear and parallel to the surface of the workpiece.

Preferably, the height of the body of the turning tools is not less than the depth of the tool placing groove.

Preferably, after the third sliding block moves to the limit position, the worm gear is not in rigid contact with the steering engine.

The invention has the advantages that: (1) by arranging the third feeding mechanism and arranging the cutters in the third feeding mechanism, the straight grooves, the inclined grooves and the axial grooves can be machined only by clamping the workpiece once, mechanical errors caused by repeated clamping are avoided, after a plurality of turning tools are installed, the cutting feed angles of the two mounting frames relative to the surface of the workpiece are automatically adjusted according to the machining requirements of the machined part, the grooving angles can be automatically adjusted according to the actual production requirements, the turning tools are synchronously fed for grooving, the machining efficiency is greatly improved, and the machining precision and the quality of products can be guaranteed;

(2) through set up the worm wheel in mounting bracket two and set up the cam in the pivot for the lathe tool can drive the worm wheel and rotate and drive ejector member and hydrojet head reciprocating motion from top to bottom through the cam at the in-process of the turning that advances, thereby makes the cutting fluid follow the lathe tool and advance in the direction of feed in step, and reciprocating motion makes the washing range cover the chute inside completely simultaneously from top to bottom, thereby the sweeps that the turning in-process produced are clear away to the developments, have guaranteed the effective of a plurality of lathe tool synchronous cutting and have gone on.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a first feeding mechanism and a second feeding mechanism in the present invention.

Fig. 3 is a schematic structural view of a third feed mechanism in the present invention.

Fig. 4 is a schematic view of the internal structure of the third feed mechanism of the present invention.

FIG. 5 is a schematic view showing another structure of the third feed mechanism of the present invention.

Fig. 6 is a schematic view of the assembly of the turning tool and the tool holder according to the present invention.

Wherein, 1-a machine body, 2-a chuck, 3-a first feeding mechanism, 4-a second feeding mechanism, 5-a support frame, 6-a third feeding mechanism, 31-a driving motor I, 32-a screw I, 33-a slide block I, 41-a mounting frame I, 42-a driving motor II, 43-a screw II, 44-a slide block II, 45-a guide rod, 601-a mounting frame II, 602-a driving motor III, 603-a screw III, 604-a slide block III, 605-a slide plate, 606-a slide groove, 607-a cutter tower, 608-a guide hole, 609-a slide column, 610-a cutter rest, 611-a cutter placing groove, 612-a reed, 613-a turning tool, 614-a steering engine, 615-a swing rod, 616-a connecting rod I, 617-a slide ring and 618-a connecting rod II, 619-screw rod, 620-top plate, 621-pressing plate, 622-guide post, 623-guide sleeve, 624-liquid spraying head, 625-sliding block, 626-guide groove, 627-top support piece, 628-rotating shaft, 629-worm wheel and 630-cam.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, a special machine tool for processing a zigzag labyrinth seal part chute comprises a machine body 1 and a chuck 2, wherein the chuck 2 is installed on the machine body 1, a first feeding mechanism 3 is installed on the machine body 1 and used for processing an axial groove of a workpiece clamped on the chuck 2, a second feeding mechanism 4 is further installed on the machine body 1 and used for processing a radial groove of the workpiece clamped on the chuck 2, a supporting frame 5 is fixedly arranged on the machine body 1, a third feeding mechanism 6 is installed at the upper end of the second feeding mechanism 4, the third feeding mechanism 6 is rotatably arranged at the upper end of the supporting frame 5 and used for simultaneously processing a plurality of chutes on the zigzag labyrinth seal part, the third feeding mechanism 6 comprises a second mounting frame 601, a third driving motor 602, a third lead screw 603 and a third slider 604, the second mounting frame 601 is rotatably connected on a second slider 44, the driving motor III 602 is installed at one end of the second mounting frame 601, one end of the third screw 603 is connected to the output end of the driving motor III 602, the other end of the third screw 603 is rotatably connected to the other end of the second mounting frame 601, the third slider 604 is screwed on the third screw 603, the upper end of the support frame 5 is rotatably connected with a sliding plate 605, two symmetrically arranged sliding grooves 606 are arranged at the side end of the second mounting frame 601, the upper end of the sliding plate 605 is slidably arranged in the sliding grooves 606, the upper end of the third slider 604 is fixedly connected with a cutter tower 607, a plurality of uniformly distributed guide holes 608 are arranged on the cutter tower 607, a plurality of sliding columns 609 are slidably arranged in the guide holes 608, a cutter holder 610 is fixed at the upper end of the cutter holder 610, a blade placing groove 611 is arranged at the inner side end of the blade placing groove 611, and a blade 612 is arranged in the blade placing groove, the side end of the turning tool 613 is abutted against the end face of the reed 612, the lower end of the turret 607 is further provided with a steering engine 614, the output end of the steering engine 614 is provided with a swing rod 615, one end of the swing rod 615 is hinged with a first connecting rod 616, the first connecting rod 616 is hinged with a sliding ring 617, the other end of the swing rod 615 is hinged with a second connecting rod 618, the other end of the second connecting rod 618 is hinged with the other end of the sliding ring 617, the lower end of the sliding column 609 is slidably arranged in the sliding ring 617, the turret 607 is further connected with a top plate 620 through a screw 619, the lower end of the top plate 620 is fixed with a compression plate 621, and the lower end of the.

In this embodiment, a guide post 622 is further fixed at the lower end of the top plate 620, a guide sleeve 623 is slidably disposed on the guide post 622, a liquid spraying head 624 is fixed on the guide sleeve 623, the lower end of the guide sleeve 623 is further slidably disposed on the turret 607 through a U-shaped sliding block 625, two symmetrically disposed guide grooves 626 are further disposed at the side end of the second mounting frame 601, a top support member 627 is slidably disposed in the guide grooves 626, a worm wheel 629 is disposed in the second mounting frame 601 through a rotating shaft 628, the worm wheel 629 is engaged with the lead screw, the other end of the rotating shaft 628 penetrates through the second mounting frame 601 and is connected with a cam 630, and an outer edge surface of the cam 630 abuts against the lower end of the top support member 627.

In this embodiment, the first feeding mechanism 3 includes a first driving motor 31, a first lead screw 32 and a first slider 33, the first driving motor 31 is installed on the side end of the machine body 1, one end of the first lead screw 32 is connected to the output end of the first driving motor 31, the other end of the first lead screw 32 is rotatably connected to the machine body 1 and is placed under the chuck 2, and the first slider 33 is in threaded connection with the first lead screw 32.

In this embodiment, the second feeding mechanism 4 includes a first mounting bracket 41, a second driving motor 42, a second lead screw 43 and a second slider 44, the first mounting bracket 41 is disposed on the machine body 1 through two guide rods 45 symmetrically disposed, the lower end of the first mounting bracket 41 is fixed on the first slider 33, the second driving motor 42 is installed in the first mounting bracket 41, one end of the second lead screw 43 is connected to the output end of the second driving motor 42, the other end of the second lead screw 43 is rotatably connected to the other end of the first mounting bracket 41, and the second slider 44 is threadedly connected to the second lead screw 43.

It should be noted that, in summary, all the driving motors are servo motors, and the rotational connection between the support frame 5 and the sliding plate 605 is located in the middle of the support frame 5, so that the adjustable angle of the second mounting frame 601 is kept at the maximum, and the lengths of the first connecting rod 616 and the second connecting rod 618 are equal.

In this embodiment, the tail ends of the turning tools 613 are inserted into the inner wall of the tool holding groove 611, and the body of the turning tools 613 is axially parallel to the lead screw iii 603, so that the turning tools 613 are pre-positioned and kept parallel by the urging of the reeds 612.

In this embodiment, the cutting edges of a plurality of turning tools 613 are collinear and parallel to the surface of the workpiece, so that the turning tools 613 can be synchronized when turning the workpiece.

In this embodiment, the height of the body of the turning tools 613 is not lower than the depth of the tool holding groove 611, so that the pressing plate 621 can fix the turning tools 613.

In addition, after the third slider 604 moves to the limit position, the worm gear 629 is not in rigid contact with the steering engine 614, so that the turning process and the flushing of the cutting fluid can be effectively carried out.

The working process and principle are as follows: when the invention is used, firstly, a workpiece to be processed is clamped on a chuck 2, then turning tools 613 are arranged in a tool placing groove 611 side by side and are pushed to a limit position, the turning tools 613 realize mutual parallel pre-positioning under the elastic pushing of a reed 612 after hands are loosened, then a top plate 620 drives a pressing plate 621 to move downwards and completely position the turning tools 613 by screwing a screw 619 onto a tool tower 607, a first driving motor 31 and a second driving motor 42 are started, the output end of the first driving motor drives a second mounting rack 601 to move to the direction vertical to the surface of the workpiece through a first lead screw 32 and a second lead screw 43, a steering engine 614 is started, the output end of the steering engine drives a swing rod 615 to rotate, the turning tools 613 are driven to be also vertical to the surface of the workpiece through a first connecting rod 616, a second connecting rod 618 and a sliding ring 617, then a third driving motor 602 is started, the output end of the third driving motor drives the turning tools, thereby completing the processing of radial straight grooves and axial grooves of the workpiece, then driving the second mounting frame 601 to swing through the movement of the second sliding block 44, the sliding plate 605 is rotatably connected with the supporting frame 5, and the supporting frame 605 can slide in the sliding groove 606, therefore, the second mounting frame 601 can rotate at any angle, that is, the advancing direction of the turning tool 613 can be adjusted at will, the steering engine 614 controls the swing of the sliding ring 417 to ensure that the cutting edge of the turning tool 613 is always parallel to the surface of the workpiece, thereby ensuring that the depths of the chutes in the workpiece are consistent, in the process, the rotation of the screw rod three 603 also synchronously drives the worm wheel 629 to rotate, the liquid spraying head 624 on the guide sleeve 623 is driven to move up and down in a reciprocating manner by the rotating shaft 628, the cam 630, the top supporting piece 627 and the sliding block 625, therefore, the cutting fluid rushing out of the port of the liquid spraying head 624 can dynamically clean the waste scraps in the chute.

Based on the above, the third feeding mechanism 6 and the arrangement mode of the row cutters in the third feeding mechanism are arranged, so that the straight groove, the inclined groove and the axial groove can be machined only by clamping the workpiece once, mechanical errors caused by repeated clamping are avoided, after a plurality of turning tools 613 are installed, the feeding angle of the second mounting frame 601 relative to the surface of the workpiece is automatically adjusted according to the machining requirements of the machined part, namely the grooving angle can be automatically adjusted according to the actual production requirements, the turning tools 613 feed and perform grooving synchronously, the machining efficiency is greatly improved, and the precision and the quality of the product can be ensured;

through setting up worm wheel 629 and setting up cam 630 on pivot 628 in mounting bracket two 601 for lathe tool 613 is at the in-process of advancing the turning, can drive worm wheel 629 and rotate and drive the upper and lower reciprocating motion of back-up piece 627 and hydrojet 624 through cam 630, thereby make the cutting fluid follow lathe tool 613 and advance in the direction of feed in step, reciprocating motion makes the washing range cover the chute inside completely simultaneously, thereby the sweeps that the dynamic clear turning in-process produced, the effective of having guaranteed the synchronous cutting of a plurality of lathe tools 613.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The utility model provides a special lathe of zigzag labyrinth seal part chute processing, includes fuselage (1) and chuck (2), install on fuselage (1) chuck (2), its characterized in that, install first feed mechanism (3) on fuselage (1) for be used for carrying out axial groove to the work piece of centre gripping on chuck (2) and process, still install second feed mechanism (4) on fuselage (1) for carrying out radial groove to the work piece of centre gripping on chuck (2) and process, fixed support frame (5) that is provided with on fuselage (1), the third is installed and is advanced for mechanism (6) in the upper end of second feed mechanism (4), the third advances to rotate for mechanism (6) and sets up in the upper end of support frame (5) for carry out the simultaneous processing of multichannel chute to zigzag labyrinth seal part, the third advances for mechanism (6) includes mounting bracket two (601), A driving motor III (602), a screw rod III (603) and a sliding block III (604), the mounting frame II (601) is rotatably connected to the sliding block II (44), the driving motor III (602) is installed at one end of the mounting frame II (601), one end of the screw rod III (603) is connected to the output end of the driving motor III (602), the other end of the screw rod III (603) is rotatably connected to the other end of the mounting frame II (601), the sliding block III (604) is in threaded connection with the screw rod III (603), the upper end of the support frame (5) is rotatably connected with a sliding plate (605), two symmetrically arranged sliding grooves (606) are formed in the side end of the mounting frame II (601), the upper end of the sliding plate (605) is slidably arranged in the sliding grooves (606), the upper end of the sliding block III (604) is fixedly connected with a cutter tower (607), and a plurality of uniformly distributed guide holes (608) are formed in the cutter, sliding columns (609) are arranged in the plurality of guide holes (608) in a sliding mode, a tool rest (610) is fixed at the upper end of each sliding column (609), a tool placing groove (611) is formed in the upper end of each tool rest (610), a reed (612) is arranged at the inner side end of each tool placing groove (611), a turning tool (613) is arranged in each tool placing groove (611), the side end of each turning tool (613) abuts against the end face of each reed (612), a steering engine (614) is further installed at the lower end of each tool tower (607), a swinging rod (615) is installed at the output end of each steering engine (614), a first connecting rod (616) is hinged to one end of each swinging rod (615), a sliding ring (617) is hinged to the first connecting rod (616), a second connecting rod (618) is hinged to the other end of each swinging rod (615), the other end of each connecting rod (618) is hinged to the other end of the sliding ring (, still be connected with roof (620) through screw rod (619) on sword tower (607), the lower extreme of roof (620) is fixed with pressure strip (621), the lower extreme butt of pressure strip (621) in the upper end of lathe tool (613).

2. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 1, wherein: the lower end of the top plate (620) is further fixed with a guide post (622), a guide sleeve (623) is arranged on the guide post (622) in a sliding mode, a liquid spraying head (624) is fixed on the guide sleeve (623), the lower end of the guide sleeve (623) is further arranged on the cutter tower (607) in a sliding mode through a U-shaped sliding block (625), two guide grooves (626) which are symmetrically arranged are further formed in the side end of the second mounting frame (601), a jacking piece (627) is arranged in the guide grooves (626) in a sliding mode, a worm wheel (629) is arranged in the second mounting frame (601) through a rotating shaft (628), the worm wheel (629) is meshed with the three phases of the screw rod, the other end of the rotating shaft (628) penetrates through the second mounting frame (601) and is connected with a cam (630), and the outer edge surface of the cam (630.

3. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 1, wherein: first feed mechanism (3) include driving motor (31), lead screw (32) and slider (33), driving motor (31) are installed on the side of fuselage (1), the one end of lead screw (32) is connected on the output of driving motor (31), and the other end of lead screw (32) rotates and connects on fuselage (1) and place chuck (2) under, slider (33) threaded connection is on lead screw (32).

4. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 1, wherein: second feed mechanism (4) include mounting bracket one (41), driving motor two (42), lead screw two (43) and slider two (44), guide bar (45) that mounting bracket one (41) set up on fuselage (1) through two symmetries, and the lower extreme of mounting bracket one (41) is fixed in on slider one (33), driving motor two (42) are installed in mounting bracket one (41), the one end of lead screw two (43) is connected on the output of driving motor two (42), and the other end of lead screw two (43) rotates and connects on the other end of mounting bracket one (41), slider two (44) threaded connection is on lead screw two (43).

5. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 1, wherein: the tail ends of the turning tools (613) are inserted into the inner wall of the tool placing groove (611), and the body of each turning tool (613) is axially parallel to the screw rod III (603).

6. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 1, wherein: the cutting edges of a plurality of turning tools (613) are collinear and parallel to the surface of the workpiece.

7. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 1, wherein: the height of the body of the turning tools (613) is not less than the depth of the tool placing groove (611).

8. The special machine tool for machining the zigzag labyrinth seal part chute as claimed in claim 2, wherein: and after the third sliding block (604) moves to the limit position, the worm wheel (629) is not in rigid contact with the steering engine (614).