CN114523322A

CN114523322A - Numerical control lathe trades knife rest

Info

Publication number: CN114523322A
Application number: CN202210214950.9A
Authority: CN
Inventors: 董莉
Original assignee: Jiangsu Engel Intelligent Technology Co ltd
Current assignee: Jiangsu Engel Intelligent Technology Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-05-24

Abstract

The invention discloses a tool changing rack of a numerical control lathe, belonging to the technical field of machining, comprising a slide rail and a tool changing device which can slide along the length direction of the slide rail, wherein a driving mechanism for driving an output shaft to rotate is arranged in a driving groove; the junction of tool carrier and connecting plate is equipped with a plurality of and is used for supporting tool carrier pivoted spheroid, and the inside of connecting plate is located spheroidal below and has seted up the through-hole, through-hole and drive groove intercommunication, and the inside of tool carrier is equipped with the oil storage chamber, and the oil storage chamber extends to spheroidal surface. When spheroid pivoted in-process, the inside lubricating oil of oil storage chamber can be attached to the spheroid surface to follow the spheroid and follow the inside of through-hole flow direction drive groove, drip at the junction of worm and scroll, unable automatic oiling and waste oil can be solved to this device and the problem of persisting inside the device always, the life of extension device.

Description

Numerical control lathe trades knife rest

Technical Field

The invention relates to a numerical control lathe tool changing frame, and belongs to the field of machining technology.

Background

A numerically controlled lathe is one of the widely used numerically controlled machines. It mainly used axle type part or the cutting process of dish class part, many lathe tools of numerical control lathe tool changing knife rest mountable, change the lathe tool of different functions through rotating the knife rest, knife rest required precision is higher, ordinary knife rest can regularly pour into lubricating oil inwards regularly, ordinary oiling device is for directly pouring into in the inside part, the operator forgets easily after the short and long-time use of lubricating oil lubrication time adds lubricating oil, lubricated effect reduces, the life-span shortens, after long-time use, inside lubricating oil can remain inside the knife rest for a long time, play lubricated effect, this has caused the damage to the machine in the past.

Disclosure of Invention

In view of the problems in the prior art, the invention provides a numerical control lathe tool changing rack which can continuously inject lubricating oil into the tool changing rack and can store and discharge waste oil in a centralized manner.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a numerical control lathe trades knife rest, includes slide rail and can follow the gliding toolchanger of slide rail length direction, its characterized in that: the tool changing device comprises a tool rest, a connecting plate and a fixed seat, wherein the connecting plate is fixedly connected with the fixed seat, the tool rest is rotatably arranged on the surface of the connecting plate, an output shaft is fixed inside the tool rest, a driving groove is formed between the connecting plate and the fixed seat, and a driving mechanism for driving the output shaft to rotate is arranged in the driving groove;

the utility model discloses a cutter frame, including cutter frame, connecting plate, through-hole, drive groove, oil storage chamber, cutter frame and connecting plate, the junction of cutter frame and connecting plate is equipped with a plurality of and is used for supporting cutter frame pivoted spheroid, the inside of connecting plate is located spheroidal below and has seted up the through-hole, through-hole and drive groove intercommunication, the inside of cutter frame is equipped with the oil storage chamber, the oil storage chamber extends to spheroidal surface.

Preferably, the surface of the connecting plate is provided with an annular groove, the annular groove is matched with the ball body, and the through hole is communicated with the annular groove.

Preferably, a plurality of grooves are formed in the bottom of the cutter frame, the grooves are hemispherical surfaces, the ball body is clamped inside the grooves, and at least one groove is communicated with the oil storage cavity.

Preferably, a worm disc is rotatably mounted inside the driving groove, the worm disc is fixedly connected with the output shaft, a worm is connected to one side of the worm disc in a meshed manner, the worm is rotatably mounted inside the fixing seat, and a motor for driving the worm to rotate is arranged inside the fixing seat.

Preferably, a through hole is formed in the center of the inner portion of the tool holder, the output shaft is inserted into the through hole, an annular yielding groove is formed in one end, close to the connecting plate, of the through hole, and the yielding groove is communicated with the oil storage cavity.

Preferably, a waste oil cavity is formed in the fixing seat, the waste oil cavity is communicated with the driving groove through an oil unloading hole, and the waste oil cavity is communicated with an oil outlet valve outside the fixing seat through a pipeline.

Preferably, a plurality of location chambeies have been seted up between connecting plate and the fixing base, there is the round pin axle location intracavity portion through elastomer slidable mounting, the one end of round pin axle is the toper, and toper one end runs through the inside that the connecting plate extends to the tool holder, the location chamber is through trachea and the outside high-pressure gas intercommunication of fixing base.

Preferably, the upper surface of cutter frame is fixed with the lid, the lid passes through the bolt fastening on the surface of cutter frame, the one end joint of lid and output shaft, the inside fuel tap that is equipped with of lid, fuel tap and oil storage chamber intercommunication go into.

Preferably, a knife containing groove is formed in the middle of the knife rest, and a fixing bolt penetrates through the upper portion of the knife containing groove.

Preferably, a sealing gasket is arranged between the cutter frame and the connecting plate.

Compared with the prior art, the lubricating device has the advantages that the plurality of supporting spheres are arranged between the tool rest and the connecting plate, the spheres support the tool rest to rotate, the spheres are driven to roll in the rotating process of the tool rest, the oil storage cavity is arranged in the tool rest and extends to the surface of the spheres, so that the lubricating oil in the oil storage cavity can be attached to the surface of the spheres and flow to the interior of the driving groove from the through hole along with the spheres in the rotating process of the spheres and then drip at the connecting part of the worm and the worm disc, and further the lubricating effect is achieved; set up the waste oil chamber in the inside of fixing base and can be used to collect lubricated waste oil, outside unified eduction gear again, unable automatic oiling and waste oil can be solved to this device and the problem of persisting inside the device always, the life of extension device.

Drawings

FIG. 1 is a view showing the connection between a tool changer and a slide rail according to the present invention.

Fig. 2 is a plan view of the tool changer of the present invention.

FIG. 3 is a connection diagram of the connection board and the fixing base according to the present invention.

Fig. 4 is an internal cross-sectional view of the present invention.

Fig. 5 is an enlarged view of the invention at a in fig. 4.

Fig. 6 is an enlarged view of the invention at B in fig. 4.

Fig. 7 is an enlarged view of the invention at C in fig. 4.

In the figure: 1. the cutting tool comprises a tool rest, 2, a connecting plate, 3, a fixed seat, 4, a sliding rail, 5, a tool loading groove, 6, an annular groove, 7, a through hole, 8, an oil outlet valve, 9, a worm, 10, a fixed plate, 11, a motor groove, 12, a driving groove, 13, a worm disc, 14, a waste oil cavity, 15, a yielding groove, 16, a sealing gasket, 17, an oil storage cavity, 18, an oil inlet valve, 19, an output shaft, 20, a sphere, 21, an oil unloading hole, 22, a pin shaft, 23, an elastic body, 24, a positioning cavity, 25 and a cover body.

Detailed Description

The invention is illustrated by the following specific examples, which are not intended to be limiting.

Examples

As shown in fig. 1-7, in this embodiment, a tool changer for a numerically controlled lathe is provided, which includes a slide rail 4 and a tool changer that can slide along a length direction of the slide rail 4, the numerically controlled lathe rotates a main shaft for clamping a workpiece, and a tool moves to process the rotating workpiece, and according to this type of processing manner, the tool changer slides along the slide rail 4, which is a manner commonly used in existing machining, so this method is not specifically described, the tool changer includes a tool holder 1, a connecting plate 2 and a fixing base 3, a tool loading slot 5 is formed in a middle portion of the tool holder 1, a fixing bolt penetrates through an upper portion of the tool loading slot 5, the tool loading slot 5 is a slot formed in the middle portion of the tool holder 1, and four or more tool holders can be circumferentially installed at four corners of the tool holder 1 as shown in fig. 2, the connecting plate 2 is fixedly connected with the fixing base 3, the connecting plate 2 is detachable from the fixing base 3, the tool rack is convenient to mount and dismount, the tool rack 1 is rotatably mounted on the surface of the connecting plate 2, a sealing gasket 16 is arranged between the tool rack 1 and the connecting plate 2, the sealing gasket 16 can be used for sealing the connecting plate 2 and the tool rack 1, the oil leakage phenomenon is prevented when relative displacement occurs between the connecting plate 2 and the tool rack 1, and impurities in air are also prevented from entering the device, an output shaft 19 is fixed inside the tool rack 1, a through hole is formed in the center of the inside of the tool rack 1, the output shaft 19 is inserted into the through hole, a cover body 25 is fixed on the upper surface of the tool rack 1, the cover body 25 is fixed on the surface of the tool rack 1 through bolts, relative displacement does not occur between the cover body 25 and the tool rack 1, the sealing effect is good, impurities cannot easily enter the device, the cover body 25 is clamped with one end of the output shaft 19, an oil inlet valve 18 is arranged inside the cover body 25, the oil inlet valve 18 is communicated with the oil storage cavity 17, hydraulic oil can be injected into the oil storage cavity 17 through the oil inlet valve 18, relative displacement is not generated between the output shaft 19 and the tool holder 1, the output shaft 19 can drive the tool holder 1 to rotate in the rotating process, a driving groove 12 is formed between the connecting plate 2 and the fixed seat 3, a driving mechanism for driving the output shaft 19 to rotate is installed in the driving groove 12, a worm disc 13 is installed in the driving groove 12 in a rotating mode, the worm disc 13 is fixedly connected with the output shaft 19, one side of the worm disc 13 is connected with a worm 9 in a meshing mode, the worm 9 is installed in the fixed seat 3 in a rotating mode, a motor for driving the worm 9 to rotate is arranged in the fixed seat 3, two fixing plates 10 are installed at the positions of the worm 9 installed on the surface of the fixed seat 3, the fixing plates 10 are respectively arranged at two ends of the worm 9 and used for supporting the worm 9, one side of any one fixing plate 10 is provided with a motor groove 11, a motor shell is installed inside the motor groove 11, a motor drives a worm 9 to rotate, the worm 9 can drive a worm disc 13 to rotate by rotating, and the worm disc 13 drives an output shaft 19 to rotate.

Referring to fig. 4-5, a plurality of balls 20 for supporting the rotation of the tool holder 1 are arranged at the joint of the tool holder 1 and the connecting plate 2, a gap is left between the connecting surfaces of the tool holder 1 and the connecting plate 2, the tool holder 1 applies pressure to the balls 20, the tool holder 1 can drive the balls 20 to rotate in the rotating process, the connecting plate 2 is provided with a through hole 7 below the balls 20, the through hole 7 is communicated with the driving groove 12, hydraulic oil flows into the driving groove 12 through the through hole 7, the tool holder 1 is provided with an oil storage cavity 17 inside, the oil storage cavity 17 extends to the surface of the balls 20, the bottom of the tool holder 1 is provided with a plurality of grooves which are hemispherical surfaces, the balls 20 are clamped inside the grooves, at least one groove is communicated with the oil storage cavity 17, the bottom of the groove is a hole, and two side arc surfaces are used for supporting the balls 20, the inside hydraulic oil of oil storage chamber 17 contacts with spheroid 20 all the time, and when spheroid 20 rotated, hydraulic oil can be attached to spheroid 20 surface, and spheroid 20 rotates and drives hydraulic oil and flow to through-hole 7 in, flows to inside the driving groove 12 by through-hole 7 again, annular groove 6 has been seted up on connecting plate 2 surface, and the cell surface of annular groove 6 is the arc, annular groove 6 and spheroid 20 adaptation, through-hole 7 and annular groove 6 intercommunication, hydraulic oil can flow into the inside of driving groove 12 along through-hole 7.

Combine fig. 4 to show, the annular groove 15 of stepping down has been seted up to the one end that the through hole is close to connecting plate 2, the groove 15 of stepping down communicates with oil storage chamber 17, and the groove 15 of stepping down sets up in the corner of through hole, can prevent that cutter frame 1 from rotating the in-process and producing the friction loss, also can pour into hydraulic oil into to the clearance department of connecting plate 2 and output shaft 19, plays lubricated effect.

A waste oil cavity 14 is formed in the fixed seat 3, the waste oil cavity 14 is communicated with the driving groove 12 through an oil unloading hole 21, the waste oil cavity 14 is communicated with an oil outlet valve 8 outside the fixed seat 3 through a pipeline, waste oil flows into the waste oil cavity 14 through the oil unloading hole 21 to be stored, and the waste oil in the waste oil cavity 14 can be cleaned by opening the oil outlet valve 8; a plurality of location chambeies 24 have been seted up between connecting plate 2 and the fixing base 3, there is round pin axle 22 location chamber 24's inside through 23 slidable mounting of elastomer, and elastomer 23 can be the spring, the one end of round pin axle 22 is the toper, and toper one end runs through the inside that connecting plate 2 extends to toolframe 1, location chamber 24 is through trachea and 3 outside high-pressure gas intercommunications of fixing base, and the one end that the awl end was kept away from to round pin axle 22 is installed the piston, when high-pressure gas pours into location chamber 24 into, promotes piston and round pin axle 22 and slides, and the awl end of round pin axle 22 removes to toolframe 1's bottom, and is fixed to toolframe 1.

The working principle is as follows: when the tool changing machine is used, the fixed seat 3 is installed on the sliding rail 4 and can slide on the sliding rail 4 along the length direction of the sliding rail 4, four different turning tools are installed on the tool rack 1 in the circumferential direction, tool setting work of the four tools is completed before machining, when tool changing is needed, firstly, an air pipe valve communicated with the positioning cavity 24 is closed, a pin shaft 22 which is not subjected to gas pressure is separated from the tool rack 1 under the action of the elastic body 23, the tool rack 1 can rotate freely, the motor drives the worm 9 to rotate, the worm 9 rotates to drive the worm disc 13 to rotate, the worm disc 13 drives the tool rack 1 and the cover body 25 to rotate by multiples of 90 degrees through the output shaft 19 to realize tool changing, after rotation, the air pipe valve communicated with the positioning cavity 24 is opened, the air pressure pushes the pin shaft 22 to slide, the upper end of the pin shaft 22 is inserted into the tool rack 1, and because the end of the pin shaft 22 inserted into the tool rack 1 is conical, the cutter frame 1 is clamped, the cutter frame 1 is positioned more accurately, in the rotating process of the cutter frame 1, the ball body 20 at the bottom of the cutter frame 1 rotates, in the rotating process of the ball body 20, lubricating oil in the oil storage cavity 17 can be attached to the ball body 20, after the ball body 20 rotates, the lubricating oil can flow into the driving mechanism along the through hole 7 and lubricate the driving mechanism, particularly, the lubricating oil directly drips on the connecting part of the worm 9 and the worm disc 13 to prolong the service life of the worm 9 and the worm disc 13, meanwhile, the lubricating oil in the abdicating groove 15 can flow into the surface of the worm disc 13 along the gap between the output shaft 19 and the fixed seat 3 to lubricate the connecting part of the worm disc 13 and also flow into the driving groove 12, the lubricated lubricating liquid flows into the waste oil cavity 14 through the oil unloading hole 21 to be stored, the device utilizes the function that the ball body 20 can rotate in the supporting process of the cutter frame 1, the effect of automatic oiling is accomplished, and can be with the outside that used lubricating oil discharged drive groove 12, avoid waste oil to store in the device for a long time, make lubricated effect reinforcing, life extension.

Finally, it should be noted that the above embodiments are only used for illustrating and not limiting the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the present invention without departing from the spirit and scope of the present invention, and all modifications or partial substitutions should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a numerical control lathe tool changing frame, includes slide rail (4) and can be along the gliding tool changing device of slide rail (4) length direction, its characterized in that: the tool changing device comprises a tool rest (1), a connecting plate (2) and a fixing seat (3), wherein the connecting plate (2) is fixedly connected with the fixing seat (3), the tool rest (1) is rotatably installed on the surface of the connecting plate (2), an output shaft (19) is fixed inside the tool rest (1), a driving groove (12) is formed between the connecting plate (2) and the fixing seat (3), and a driving mechanism for driving the output shaft (19) to rotate is installed in the driving groove (12);

the utility model discloses a cutter frame, including cutter frame (1), connecting plate (2), through-hole (7) and driving groove (12), the junction of cutter frame (1) and connecting plate (2) is equipped with a plurality of and is used for supporting cutter frame (1) pivoted spheroid (20), the inside of connecting plate (2) is located the below of spheroid (20) and has seted up through-hole (7), through-hole (7) and driving groove (12) intercommunication, the inside of cutter frame (1) is equipped with oil storage chamber (17), oil storage chamber (17) extend to the surface of spheroid (20).

2. The numerical control lathe tool changing frame according to claim 1, characterized in that the surface of the connecting plate (2) is provided with an annular groove (6), the annular groove (6) is matched with the ball body (20), and the through hole (7) is communicated with the annular groove (6).

3. The numerical control lathe tool changing frame as claimed in claim 2, wherein the bottom of the tool holder (1) is provided with a plurality of grooves, the grooves are hemispherical surfaces, the sphere (20) is clamped in the grooves, and at least one groove is communicated with the oil storage cavity (17).

4. The numerical control lathe tool changing frame according to claim 3, characterized in that a worm disc (13) is rotatably installed inside the driving groove (12), the worm disc (13) is fixedly connected with the output shaft (19), a worm (9) is engaged and connected to one side of the worm disc (13), the worm (9) is rotatably installed inside the fixed seat (3), and a motor for driving the worm (9) to rotate is arranged inside the fixed seat (3).

5. The numerical control lathe tool changing frame according to claim 3, wherein a through hole is formed in the center of the inner portion of the tool holder (1), the output shaft (19) is inserted into the through hole, an annular abdicating groove (15) is formed in one end, close to the connecting plate (2), of the through hole, and the abdicating groove (15) is communicated with the oil storage cavity (17).

6. The numerical control lathe tool changing rack according to claim 1 or 5, characterized in that a waste oil chamber (14) is formed inside the fixed seat (3), the waste oil chamber (14) is communicated with the driving groove (12) through an oil discharging hole (21), and the waste oil chamber (14) is communicated with an oil outlet valve (8) outside the fixed seat (3) through a pipeline.

7. The numerical control lathe tool changing frame according to claim 1, wherein a plurality of positioning cavities (24) are formed between the connecting plate (2) and the fixing seat (3), a pin shaft (22) is slidably mounted inside the positioning cavities (24) through an elastic body (23), one end of the pin shaft (22) is conical, one end of the conical end penetrates through the connecting plate (2) and extends to the inside of the tool holder (1), and the positioning cavities (24) are communicated with a high-pressure gas tank outside the fixing seat (3) through a gas pipe.

8. The numerical control lathe tool changing frame according to claim 1, characterized in that a cover body (25) is fixed on the upper surface of the tool holder (1), the cover body (25) is fixed on the surface of the tool holder (1) through bolts, the cover body (25) is clamped with one end of the output shaft (19), an oil inlet valve (18) is arranged inside the cover body (25), and the oil inlet valve (18) is communicated with the oil storage cavity (17).

9. The numerical control lathe tool changing frame as claimed in claim 1, wherein a tool loading groove (5) is formed in the middle of the tool rack (1), and a fixing bolt penetrates through the upper part of the tool loading groove (5).

10. A numerically controlled lathe change tool holder according to claim 1, characterized in that a sealing gasket (16) is provided between the tool holder (1) and the connecting plate (2).