CN110640482B

CN110640482B - Machine tool

Info

Publication number: CN110640482B
Application number: CN201910978457.2A
Authority: CN
Inventors: 赵玲刚; 林银方; 袁志锋; 陈宝国
Original assignee: Taizhou Eastern Cnc Technology Co ltd
Current assignee: Taizhou Eastern Cnc Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2021-06-08
Anticipated expiration: 2039-10-15
Also published as: CN110640482A

Abstract

The invention provides a machine tool, and belongs to the technical field of machinery. The machine tool comprises a machine body and a machine tool body, the level sets up truss and the manipulator of setting on the truss on the lathe bed, still be equipped with the charging tray on the lathe bed, the charging tray is in the manipulator below, the charging tray is including apron and the box body of setting on the lathe bed, the apron sets firmly on the box body and seals the box mouth, form the cavity between box body inner wall and the apron, integrated into one piece has the cask on the apron diapire, the cask is vertical to be located in the cavity, have on the apron along the through-hole that vertical direction runs through the setting, be equipped with the round bar in the cask, round bar upper end is located the through-hole, the round bar external diameter is less than the through-hole aperture, it has the sealing ring still integrated into one piece on the round bar outer wall, still be equipped with the spring that makes the round bar upper end have the through-hole trend of stretching out in the cask, the sealing ring can sticis on the apron diapire and seal the. The machine tool has good grabbing stability.

Description

Machine tool

Technical Field

The invention belongs to the technical field of machinery, and relates to a machine tool.

Background

The lathe can produce a lot of cutting bits when adding man-hour, and the cutting bits easily piles up on the workstation or fall on the lathe guide rail protection casing and the cutting bits are difficult to clean, and the pile up of cutting bits can make lathe load increase, dynamic behavior worsen, guide rail protection casing wearing and tearing, deformation, damage even, if not in time handle still can cause the guide rail protection casing to strain, and then cause the guide rail to damage and the loss of drive screw precision.

The feeding of the existing machine tool is generally finished by feeding through a guide rail or grabbing and feeding through a mechanical arm, and when the surface of a workpiece is smooth, the workpiece is rocked when being grabbed by the mechanical arm, so that the grabbing stability and efficiency are influenced.

Disclosure of Invention

The invention aims to provide a machine tool aiming at the problems in the prior art, and solves the technical problem of how to improve the material grabbing stability.

The purpose of the invention can be realized by the following technical scheme: a machine tool comprises a machine tool body, a truss horizontally arranged on the machine tool body and a manipulator arranged on the truss, wherein a material tray is also arranged on the machine tool body and is positioned below the manipulator; a closed cavity is formed between the inner wall of the box body and the cover plate, a barrel is integrally formed on the bottom wall of the cover plate, the barrel is vertically arranged in the cavity, the lower end of the barrel is closed, a through hole which penetrates through the cover plate in the vertical direction is formed in the cover plate, and the through hole is opposite to the inner cavity of the barrel; a round rod is vertically arranged in the round barrel, the upper end of the round rod is positioned in the through hole, the outer diameter of the round rod is smaller than the aperture of the through hole, a sealing ring is further integrally formed on the outer wall of the round rod and positioned in the cavity, a spring which enables the upper end of the round rod to have a tendency of extending out of the through hole is further arranged in the round barrel, and the sealing ring can be tightly pressed on the bottom wall of the cover plate and seal the lower orifice of the through hole when the upper end of the round rod extends out of the through; the wall of the drum is provided with an air hole which enables the drum to be communicated with the cavity, and the machine bed also comprises a negative pressure mechanism which can enable the cavity to generate negative pressure.

The working process is as follows: in the initial state, the round rod moves upwards under the action of the spring to enable the upper end of the round rod to extend out of the through hole, and at the moment, the sealing ring is tightly pressed on the bottom wall of the cover plate and seals the lower orifice of the through hole; when the circular rod type mechanical hand is used, a workpiece is placed on the cover plate, the circular rod moves downwards by overcoming the elastic force of the spring, at the moment, the sealing ring is separated from the cover plate, so that the through hole is communicated with the barrel, negative pressure is generated at the through hole, a suction force is increased on the workpiece, the probability that the workpiece shakes during grabbing is effectively avoided, the workpiece is grabbed by the mechanical hand more stably, and the grabbing efficiency and stability are improved; when the workpiece is grabbed and gradually gets away from the cover plate, the round rod is reset under the action of the spring, and the sealing ring is enabled to close the lower hole opening of the through hole again so as to prevent external impurities from entering the barrel through the through hole. In an actual product, the negative pressure suction force at the through hole is not very large.

In the above machine tool, the inner bottom wall of the barrel is vertically fixed with a round pipe, the round pipe is sleeved outside the round rod, the inner circumferential surface of the round pipe is attached to the outer circumferential surface of the round rod, the spring is positioned in the round pipe, and two ends of the spring are respectively abutted to the bottom wall of the round rod and the inner bottom wall of the barrel. The pipe removes to the round bar and plays the guide effect, makes the pipe more accurate, remove steadily, improves job stabilization nature.

In foretell lathe, the inside wall of pipe on seted up the bar groove, bar groove length extends along the pipe axial, and bar groove upper end extends to the pipe roof, the bar inslot is filled with lubricating grease. The lubricating grease is used for lubricating the contact surface of the round pipe and the round rod, so that the round rod can slide more smoothly.

In the machine tool, the top wall of the sealing ring is provided with an annular groove, the annular groove and the sealing ring are coaxially arranged, an annular sealing gasket is arranged in the annular groove, and two end faces of the annular sealing gasket are respectively abutted against the cover plate and the bottom wall of the annular groove. Under the effect of the annular sealing gasket, the sealing effect formed between the sealing ring and the cover plate can be enhanced, and the working stability is improved.

In the above machine tool, the negative pressure mechanism includes a negative pressure vacuum pump and an air pipe both disposed outside the box body, and an inlet of the negative pressure vacuum pump is communicated with the cavity through the air pipe.

In the machine tool, the side wall of the box body is provided with a connecting hole which is opposite to the air pipe in a penetrating way, one end of the air pipe is inserted into the connecting hole, and the air pipe is fixedly connected with the box body in a sealing way.

In the machine tool, the air pipe is fixedly connected with the box body in a sealing mode in a welding mode.

As another scheme, in the above machine tool, a mounting opening is formed in a side wall of the box body in a penetrating manner, and the negative pressure mechanism includes a negative pressure fan fixed in the mounting opening.

Compared with the prior art, the machine tool has the advantages that under the matching of the negative pressure mechanism, the cover plate, the barrel and other parts, when the workpiece is placed on the cover plate, the through hole can generate negative pressure to increase the suction force on the workpiece, so that the probability that the workpiece shakes when being grabbed is effectively avoided, the manipulator can grab the workpiece more stably, and the grabbing efficiency and stability are improved.

Drawings

Fig. 1 is a schematic structural view of the present machine tool.

Fig. 2 is a schematic view of the structure of the tray.

Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.

In the figure, 1, a lathe bed; 2. a truss; 3. a manipulator; 4. a cover plate; 4a, a barrel; 4b, through holes; 4c, air holes; 5. a box body; 6. a cavity; 7. a round bar; 7a, a sealing ring; 8. a spring; 9. an annular seal; 10. a circular tube; 10a, a strip-shaped groove; 11. a negative pressure vacuum pump; 12. an air tube; 13. and (5) a workpiece.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the machine tool comprises a machine body 1, a truss 2 horizontally arranged on the machine body 1 and a manipulator 3 arranged on the truss 2, wherein a material tray is further arranged on the machine body 1 and is positioned below the manipulator 3.

Specifically, as shown in fig. 2, the tray includes a cover plate 4 and a box body 5 arranged on the bed 1, wherein a box opening of the box body 5 is arranged upward, the cover plate 4 is horizontally and fixedly arranged on the box body 5 and seals the box opening of the box body 5, and the cover plate 4 is located between the box body 5 and the manipulator 3. In this embodiment, preferably, the cover plate 4 is fixedly connected with the box body 5 in a sealing manner by welding. A cavity 6 in a closed shape is formed between the inner wall of the box body 5 and the cover plate 4, a barrel 4a is integrally formed on the bottom wall of the cover plate 4, the barrel 4a is vertically arranged in the cavity 6, and the lower end of the barrel 4a is in a closed shape. The cover plate 4 is provided with a through hole 4b which is arranged in a penetrating way along the vertical direction, and the through hole 4b is just opposite to the inner cavity of the barrel 4 a. During actual use, the barrel bodies are multiple, and the through holes 4b are the same in number and correspond to the barrel bodies in position one to one.

As shown in fig. 2 and 3, a round rod 7 is vertically arranged in each barrel 4a, the upper end of the round rod 7 is positioned in the through hole 4b, the outer diameter of the round rod 7 is smaller than the aperture of the through hole 4b, and at the moment, an annular gap exists between the side wall of the round rod 7 and the wall of the through hole 4 b. Still integrated into one piece has sealing ring 7a on the 7 outer walls of round bar, and sealing ring 7a and round bar 7 coaxial line arrange, and sealing ring 7a is located cavity 6, still is equipped with in the cask 4a and makes the 7 upper ends of round bar have the spring 8 that stretches out through-hole 4b trend, and sealing ring 7a can sticis on apron 4 diapire and seal orifice under through-hole 4b when through-hole 4b is stretched out to round bar 7 upper end. Further, an annular groove is formed in the top wall of the sealing ring 7a, the annular groove and the sealing ring 7a are arranged coaxially, an annular sealing gasket 9 is arranged in the annular groove, and two end faces of the annular sealing gasket 9 abut against the cover plate 4 and the bottom wall of the annular groove respectively, so that the sealing effect formed between the sealing ring 7a and the cover plate 4 is enhanced.

In the present embodiment, the spring 8 is specifically arranged as follows: and a round tube 10 is vertically fixed on the inner bottom wall of the barrel 4a, and preferably, the round tube 10 is fixedly connected with the barrel 4a in a welding mode. The pipe 10 cover is established outside round bar 7, and leans on with the outer periphery of round bar 7 with round bar 10 internal circumference face mutually, and spring 8 is located

pipe

10, and 8 both ends of spring respectively with 7 diapalls of round bar and the interior diapalls of cask 4a counterbalance, make pipe 10 more accurate, remove steadily. Furthermore, a strip-shaped groove 10a is formed in the inner side wall of the circular tube 10, the length of the strip-shaped groove 10a extends along the axial direction of the circular tube 10, the upper end of the strip-shaped groove 10a extends to the top wall of the circular tube 10, and lubricating grease is filled in the strip-shaped groove 10a to lubricate the contact surface of the circular tube 10 and the circular rod 7, so that the circular rod 7 can slide more smoothly.

The wall of the barrel 4a is provided with an air hole 4c which enables the barrel 4a and the cavity 6 to be communicated, and the machine tool also comprises a negative pressure mechanism which can enable the cavity 6 to generate negative pressure. Preferably, the air holes 4c are plural and distributed along the circumferential direction of the barrel 4 a. In this embodiment, the negative pressure mechanism includes a negative pressure vacuum pump 11 and an air pipe 12 both disposed outside the box body 5, and an inlet of the negative pressure vacuum pump 11 is communicated with the cavity 6 through the air pipe 12. The air pipe 12 is installed in the following manner: a connecting hole which is opposite to the air pipe 12 is arranged on the side wall of the box body 5 in a penetrating way, one end of the air pipe 12 is inserted into the connecting hole, and the air pipe 12 is fixedly connected with the box body 5 in a sealing way; the air pipe 12 is fixedly connected with the box body 5 in a sealing way in a welding way.

The working process is as follows: in an initial state, the round rod 7 moves upwards under the action of the spring 8 to enable the upper end of the round rod to extend out of the through hole 4b, and at the moment, the sealing ring 7a is tightly pressed on the bottom wall of the cover plate 4 and seals the lower opening of the through hole 4 b; when the automatic grabbing device is used, a workpiece 13 is placed on the cover plate 4, the round rod 7 moves downwards against the elastic force of the spring 8, at the moment, the sealing ring 7a is separated from the cover plate 4, the through hole 4b is communicated with the barrel 4a, negative pressure is generated at the through hole 4b, so that a suction force is increased on the workpiece 13, the probability that the workpiece 13 shakes during grabbing is effectively avoided, the manipulator 3 can grab the workpiece 13 more stably, and grabbing efficiency and stability are improved; when the workpiece 13 is gripped and gradually moved away from the cover 4, the rod 7 is restored by the spring 8 and causes the sealing ring 7a to re-close the lower opening of the through hole 4b to prevent foreign matter from entering the drum 4a through the through hole 4 b. In the actual product, the negative pressure suction force at the through hole 4b is not so large.

Example two

The second embodiment is basically the same as the first embodiment in structure and principle, and the difference lies in: the side wall of the box body 5 is provided with a mounting opening in a penetrating way, and the negative pressure mechanism comprises a negative pressure fan fixed in the mounting opening.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A machine tool comprises a machine body (1), a truss (2) horizontally arranged on the machine body (1) and a manipulator (3) arranged on the truss (2), wherein a material tray is also arranged on the machine body (1) and is positioned below the manipulator (3), and the machine tool is characterized in that the material tray comprises a cover plate (4) and a box body (5) arranged on the machine body (1), a box opening of the box body (5) is arranged upwards, the cover plate (4) is horizontally and fixedly arranged on the box body (5) and seals the box opening, and the cover plate (4) is positioned between the box body (5) and the manipulator (3); a closed cavity (6) is formed between the inner wall of the box body (5) and the cover plate (4), a barrel (4a) is integrally formed on the bottom wall of the cover plate (4), the barrel (4a) is vertically arranged in the cavity (6), the lower end of the barrel (4a) is closed, a through hole (4b) which is arranged in a penetrating manner along the vertical direction is formed in the cover plate (4), and the through hole (4b) is right opposite to the inner cavity of the barrel (4 a); a round rod (7) is vertically arranged in the round barrel (4a), the upper end of the round rod (7) is positioned in the through hole (4b), the outer diameter of the round rod (7) is smaller than the aperture of the through hole (4b), a sealing ring (7a) is further integrally formed on the outer wall of the round rod (7), the sealing ring (7a) is positioned in the cavity (6), a spring (8) which enables the upper end of the round rod (7) to have a tendency of extending out of the through hole (4b) is further arranged in the round barrel (4a), and the sealing ring (7a) can be tightly pressed on the bottom wall of the cover plate (4) and seal the lower orifice of the through hole (4b) when the upper end of the round rod (7) extends out of the through hole (; the wall of the drum (4a) is provided with an air hole (4c) which enables the drum (4a) and the cavity (6) to be communicated, and the machine tool also comprises a negative pressure mechanism which can enable the cavity (6) to generate negative pressure; a round pipe (10) is vertically fixed on the inner bottom wall of the round barrel (4a), the round pipe (10) is sleeved outside the round rod (7), the inner circumferential surface of the round pipe (10) is attached to the outer circumferential surface of the round rod (7), the spring (8) is positioned in the round pipe (10), and two ends of the spring (8) are respectively abutted to the bottom wall of the round rod (7) and the inner bottom wall of the round barrel (4 a); a strip-shaped groove (10a) is formed in the inner side wall of the round tube (10), the length of the strip-shaped groove (10a) extends along the axial direction of the round tube (10), the upper end of the strip-shaped groove (10a) extends to the top wall of the round tube (10), and lubricating grease is filled in the strip-shaped groove (10 a); the outer diameter of the sealing ring (7a) is larger than the inner diameter of the circular tube (10); an annular groove is formed in the top wall of the sealing ring (7a), the annular groove and the sealing ring (7a) are coaxially arranged, an annular sealing gasket (9) is arranged in the annular groove, and two end faces of the annular sealing gasket (9) are respectively abutted against the cover plate (4) and the bottom wall of the annular groove; the top wall of the annular sealing gasket (9) is flush with the top wall of the sealing ring (7 a).

2. The machine tool according to claim 1, characterized in that the negative pressure mechanism comprises a negative pressure vacuum pump (11) and an air pipe (12) both arranged outside the box body (5), and the inlet of the negative pressure vacuum pump (11) is communicated with the cavity (6) through the air pipe (12).

3. The machine tool according to claim 2, characterized in that a connecting hole opposite to the air pipe (12) is arranged on the side wall of the box body (5) in a penetrating way, one end of the air pipe (12) is inserted into the connecting hole, and the air pipe (12) is fixedly connected with the box body (5) in a sealing way.

4. The machine tool according to claim 3, characterized in that the air pipe (12) is hermetically fixed to the box body (5) by welding.

5. The machine tool according to claim 1, characterized in that a mounting opening is formed in the side wall of the box body (5) in a penetrating manner, and the negative pressure mechanism comprises a negative pressure fan fixed in the mounting opening.