CN112548674A - Five machining center's two longmen collision device - Google Patents

Abstract

The invention relates to the technical field of numerical control machines, in particular to a double-gantry anti-collision device of a five-axis machining center, which comprises a lathe body, wherein two mounting grooves are formed in the outer wall of the top of the lathe body, the inner walls of one side of the two mounting grooves are connected with sliding rails through bolts, the inside of one mounting groove is connected with a left screw rod through a bearing seat, the inside of the other mounting groove is connected with a right screw rod through a bearing seat, and the outer wall of one side of the lathe body is connected with a left servo motor. According to the invention, the anti-collision device body has a two-stage anti-collision effect, the proximity sensor enables the anti-collision effect to be more sensitive, the anti-collision can be triggered without direct contact, and the anti-collision effect can be realized when the proximity sensor fails, so that the first main shaft and the second main shaft have the two-stage anti-collision effect with a workpiece, and meanwhile, the bipolar anti-collision between two portal frames where the first main shaft and the second main shaft are located can be realized, thereby improving the anti-collision safety effect of a five-axis machining center.

Description

Five machining center's two longmen collision device

Technical Field

The invention relates to the technical field of numerical control machine tools, in particular to a double-gantry anti-collision device of a five-axis machining center.

Background

The five-axis gantry machining center is a machine tool which is high in technological content and precision and specially used for machining complex curved surfaces, and the machine tool system has a great influence on the industries of aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and the like in one country.

Chinese patent No. 201710685558.1 discloses a real-time anti-collision device of a numerical control machine tool, which comprises a machine body, wherein the machine body comprises a working chamber, the working chamber comprises an upper layer plate, a lower layer plate, a left layer plate, a right layer plate and a rear layer plate, the five plates are of double-layer hollow structures and respectively comprise a first layer plate and a second layer plate, the first layer plate is positioned at the inner side of the working chamber, the surface of the first layer plate is provided with a collision sensor, the second layer plate is fixed on the machine body, four corners of the surface of the second layer plate are respectively provided with an electric telescopic rod, the electric telescopic rods are in a maximum extension state, the bottom ends of the electric telescopic rods are fixed on the second layer plate, the top ends of the electric telescopic rods are tightly attached to the first layer plate, the outer surfaces of the electric telescopic rods are sleeved with springs, two ends of the springs are respectively fixed on the first layer, and meanwhile, the first layer plate of the machine tool working chamber can also shrink, so that the machine tool and the cutter are prevented from being damaged.

In the 201710685558.1 patent, although the anti-collision effect of the numerical control machine tool can be achieved, the collision sensor needs to be contacted to trigger the anti-collision effect, the reaction sensitivity is low, if the collision sensor fails, the machine tool cannot achieve the anti-collision effect, and the anti-collision installation performance of the machine tool is low; the collision sensor is not protected and does not have buffering, so that the service life of the collision sensor is shortened or the collision sensor is easily damaged during collision contact; in addition, the machine tool in the prior art works for a single main shaft, so that the machining efficiency of the workpiece is reduced. Therefore, it is desirable to design a dual gantry collision avoidance apparatus for a five-axis machining center to solve the above problems.

Disclosure of Invention

The invention aims to provide a double-gantry anti-collision device of a five-axis machining center, which aims to solve the problems of low anti-collision response sensitivity, low anti-collision safety performance, easy damage of a sensor and low machining efficiency of a machine tool in the background technology.

The technical scheme of the invention is as follows: a double-gantry anti-collision device of a five-axis machining center comprises a lathe body, wherein two mounting grooves are formed in the outer wall of the top of the lathe body, one inner wall of each mounting groove is connected with a slide rail through a bolt, the inside of one mounting groove is connected with a left lead screw through a bearing seat, the inside of the other mounting groove is connected with a right lead screw through a bearing seat, the outer wall of one side of the lathe body is connected with a left servo motor through a bolt, one end of an output shaft of the left servo motor is connected with the left lead screw through a coupler, the outer wall of one side of the lathe body is connected with a right servo motor through a bolt, one end of an output shaft of the right servo motor is connected with the right lead screw through a coupler, a first left stand column and a first right stand column are arranged at the top of the lathe body, a first main shaft is arranged between the first left stand column and the first, the inner part of the first left slide block is connected with a left ball nut through a bolt, the left ball nut is connected with a left screw rod through a thread, the top part of the machine tool body is provided with a second left upright post and a second right upright post, a second main shaft is arranged between the second left upright post and the second right upright post, the outer wall of the bottom part of the second right upright post is connected with a second right slide block through a stud, the inner part of the second right slide block is connected with a right ball nut through a bolt, the right ball nut is connected with a right screw rod through a thread, the outer wall of one side and the outer wall of the bottom part of the second main shaft are both connected with an anti-collision device body through bolts, the anti-collision device body comprises a shell, a guide pillar is connected in the shell in a sliding manner, a sliding hole is formed in the inner part of the guide pillar, a contact column is connected in the sliding hole in a sliding manner, a left pole block and, the inside of casing is provided with first spring, one side inner wall fixedly connected with right utmost point piece of casing, one side outer wall of guide pillar is opened there is the standing groove, the inside proximity sensor that is provided with of standing groove, one side of lathe bed is provided with the mainframe box.

Furthermore, the outer wall of the bottom of the first right upright post is connected with a first right sliding block through a stud, and the outer wall of the bottom of the second left upright post is connected with a second left sliding block through a bolt.

Further, there is the workstation top outer wall of lathe bed through bolted connection, and the workstation is located between first left stand and the first right stand.

Furthermore, a first left sliding groove is formed in the outer wall of one side of the first left sliding block, and the first left sliding block is connected with the sliding rail in a sliding mode through the first left sliding groove.

Furthermore, a first right sliding groove is formed in the outer wall of one side of the first right sliding block, and the first right sliding block is connected with the sliding rail in a sliding mode through the first right sliding groove.

Furthermore, a second left sliding groove is formed in the outer wall of one side of the second left sliding block, and the second left sliding block is connected with the sliding rail in a sliding mode through the second left sliding groove.

Furthermore, a second right sliding groove is formed in the outer wall of one side of the second right sliding block, and the second right sliding block is connected with the sliding rail in a sliding mode through the second right sliding groove.

Furthermore, the outside welding of guide pillar has the fender ring, one side of keeping off the ring is provided with the anticollision circle.

Further, the anti-collision ring is sleeved outside the guide post, and the proximity sensor is located inside the anti-collision ring.

Furthermore, a limiting groove is formed in the outer wall of one side of the contact column, a limiting column is inserted into the outer wall of one side of the guide column, and the bottom end of the limiting column extends into the limiting groove.

The invention provides a double-gantry anti-collision device of a five-axis machining center through improvement, and compared with the prior art, the device has the following improvements and advantages:

(1) according to the invention, the anti-collision device body has a two-stage anti-collision effect, the proximity sensor enables the anti-collision effect to be more sensitive, the anti-collision can be triggered without direct contact, and the anti-collision effect can be realized when the proximity sensor fails, so that the first main shaft and the second main shaft have the two-stage anti-collision effect with a workpiece, and meanwhile, the bipolar anti-collision between two portal frames where the first main shaft and the second main shaft are located can be realized, thereby improving the anti-collision safety effect of a five-axis machining center.

(2) According to the invention, the anti-collision ring supported by the rubber material is utilized, so that the anti-collision ring can protect the proximity sensor, and the proximity sensor is prevented from being extruded and damaged in a state that the proximity sensor cannot work, thereby realizing the effect of protecting the proximity sensor.

(3) The contact column is buffered by the second spring, so that the contact column can be effectively buffered when being in contact with the right pole block, and the contact column and the right pole block are prevented from being damaged due to hard contact, and therefore, the extension is realized.

(4) According to the invention, the left servo motor and the right servo motor are used for respectively driving the two portal frames to move, so that the first main shaft and the second main shaft can respectively process different stations of a workpiece, and the effect of high workpiece processing efficiency of a five-axis processing center is realized.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the inventive machine bed construction;

FIG. 3 is a schematic view of a first left slider configuration of the present invention;

FIG. 4 is a schematic view of a second left slider configuration of the present invention;

FIG. 5 is a schematic structural view of a crash barrier body according to the present invention;

FIG. 6 is a schematic view of a second spindle configuration of the present invention;

fig. 7 is a control schematic of the present invention.

Description of reference numerals:

1 machine tool body, 2 first left column, 3 first right column, 4 second left column, 5 second right column, 6 workbench, 7 left servo motor, 8 right servo motor, 9 mounting groove, 10 slide rail, 11 first left slide block, 12 first right slide block, 13 first left slide groove, 14 left ball nut, 15 first right slide groove, 16 second right slide block, 17 second left slide block, 18 right ball nut, 19 second right slide groove, 20 second left slide groove, 21 first main shaft, 22 second main shaft, 23 main machine box, 24 left screw rod, 25 right screw rod, 26 shell, 27 guide pillar, 28 slide hole, 29 contact column, 30 first spring, 31 right pole block, 32 limit column, 33 limit groove, 34 second spring, 35 standing groove, 36 approach sensor, 37 stop ring, 38 collision ring, 39 left pole block, 40 collision device body.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 7, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention provides a double-gantry anti-collision device of a five-axis machining center through improvement, as shown in figures 1-7, the device comprises a machine tool body 1, two mounting grooves 9 are arranged on the outer wall of the top of the machine tool body 1, slide rails 10 are connected on the inner walls of one sides of the two mounting grooves 9 through bolts, a left screw rod 24 is connected inside one mounting groove 9 through a bearing seat, a right screw rod 25 is connected inside the other mounting groove 9 through a bearing seat, a left servo motor 7 is connected on the outer wall of one side of the machine tool body 1 through bolts, the model of the left servo motor 7 is SGMAH-02BAA21, one end of an output shaft of the left servo motor 7 is connected with the left screw rod 24 through a coupling, the left servo motor 7 is used for driving the left screw rod 24 to rotate, a right servo motor 8 is connected on the outer wall of one side of the machine tool body 1 through bolts, the, the left servo motor 7 and the right servo motor 8 are internally provided with a band-type brake device, one end of an output shaft of the right servo motor 8 is connected with a right screw rod 25 through a coupler, the right servo motor 8 is utilized to drive the right screw rod 25 to rotate, the top of the lathe bed 1 is provided with a first left upright post 2 and a first right upright post 3, a first main shaft 21 is arranged between the first left upright post 2 and the first right upright post 3, the first left upright post 2 and the first right upright post 3 form a first portal frame of a machining center, the first main shaft 21 can move up and down and left and right on the first portal frame to enable the first main shaft 21 to machine a workpiece, the outer wall of the bottom of the first left upright post 2 is connected with a first left slide block 11 through a bolt, the inside of the first left slide block 11 is connected with a left ball nut 14 through a bolt, the left ball nut 14 is connected with the left screw rod 24 through a thread, so that the first portal frame where the first main shaft 21 is located is driven to move, the top of lathe bed 1 is provided with second left stand 4 and second right stand 5, second left stand 4 and second right stand 5 constitute the second portal frame of machining center, be provided with second main shaft 22 between second left stand 4 and the second right stand 5, first main shaft 21 and second main shaft 22 are prior art, utilize first main shaft 21 and second main shaft 22 to carry out simultaneous working, make the machining efficiency of work piece obtain improving, the bottom outer wall of second right stand 5 is connected with second right slider 16 through the double-screw bolt, there is right ball nut 18 inside through bolted connection of second right slider 16, and right ball nut 18 and right lead screw 25 pass through threaded connection, the rotation that utilizes right lead screw 25 drives the second portal frame that second main shaft 22 is located and carries out work, one side outer wall and the bottom outer wall of second main shaft 22 all have buffer stop body 40 through bolted connection, buffer stop body 40 can realize that there is the effect of anticollision between second main shaft 22 and work piece and the first portal frame The bottom of the first main shaft 21 is also provided with an anti-collision device body 40, the anti-collision device body 40 comprises a shell 26, the shell 26 of the anti-collision device body 40 is in bolted connection with a machine tool, a guide post 27 is connected in the shell 26 in a sliding manner, the guide post 27 is made of an insulating material, a sliding hole 28 is formed in the guide post 27, a contact post 29 is connected in the sliding hole 28 in a sliding manner, the contact post 29 is made of a copper material with good conductivity, a left pole block 39 and a second spring 34 are arranged in the sliding hole 28, the left pole block 39 is made of the copper material and provided with a pin, the second spring 34 is made of the steel material and plated with silver on the surface, so that the conductivity of the second spring 34 is improved, the second spring 34 is positioned between the left pole block 39 and the contact post 29, so that an electrified conductor is formed between the left pole block 39 and the contact post 29, the first spring 30 is, utilize first spring 30 to carry out the elasticity to guide pillar 27 and reset, one side inner wall fixedly connected with right utmost point piece 31 of casing 26, right utmost point piece 31 adopts the copper material to make, standing groove 35 has been opened to one side outer wall of guide pillar 27, standing groove 35 is inside to be provided with proximity sensor 36, proximity sensor 36's model is NJK-5002C, utilize proximity sensor 36 anticollision to react, proximity sensor 36's inductive distance is within 10mm, one side of lathe bed 1 is provided with mainframe box 23, mainframe box 23 is prior art's five-axis gantry machining center of control host computer.

Further, the outer wall of the bottom of the first right upright post 3 is connected with a first right sliding block 12 through a stud, the outer wall of the bottom of the second left upright post 4 is connected with a second left sliding block 17 through a bolt, the first right sliding block 12 is utilized to support the first right upright post 3 when the first right upright post moves, and the second left sliding block 17 is utilized to support the second left upright post 4 when the second left upright post moves.

Further, there is workstation 6 top outer wall of lathe bed 1 through bolted connection, and workstation 6 is located between first left stand 2 and the first right stand 3, and workstation 6 is used for placing the work piece of processing.

Further, the outer wall of one side of the first left sliding block 11 is provided with a first left sliding chute 13, and the first left sliding block 11 is connected with the sliding rail 10 in a sliding manner through the first left sliding chute 13, so that the sliding rail 10 slidably supports the first left upright post 2 through the first left sliding block 11.

Further, one side outer wall of first right slider 12 is opened there is first right spout 15, and first right slider 12 passes through first right spout 15 and slide rail 10 sliding connection for slide rail 10 carries out the sliding support through first right slider 12 to first right stand 3.

Furthermore, the outer wall of one side of the second left sliding block 17 is provided with a second left sliding chute 20, and the second left sliding block 17 is connected with the sliding rail 10 in a sliding manner through the second left sliding chute 20, so that the sliding rail 10 slidably supports the second left upright post 4 through the second left sliding block 17.

Further, a second right sliding groove 19 is formed in the outer wall of one side of the second right sliding block 16, and the second right sliding block 16 is connected with the sliding rail 10 in a sliding mode through the second right sliding groove 19, so that the sliding rail 10 supports the second left and right upright posts 5 in a sliding mode through the second right sliding block 16.

Further, a baffle ring 37 is welded on the outer portion of the guide pillar 27, an anti-collision ring 38 is arranged on one side of the baffle ring 37, and the anti-collision ring 38 is made of rubber.

Further, the crash ring 38 is sleeved outside the guide post 27, and the proximity sensor 36 is located inside the crash ring 38, so that the proximity sensor 36 is protected by the crash ring 38.

Furthermore, a limiting groove 33 is formed in the outer wall of one side of the contact column 29, a limiting column 32 is inserted into the outer wall of one side of the guide column 27, the bottom end of the limiting column 32 extends into the limiting groove 33, and the contact column 29 is limited by the limiting column 32, so that the contact column 29 is not separated from the slide hole 28.

The working principle of the invention is as follows: when the portal frame where the first spindle 21 is located needs to move, a power supply of the left servo motor 7 is switched on, the left servo motor 7 is controlled to rotate by the mainframe box 23, so that the left servo motor 7 drives the left screw rod 24 to rotate, the left screw rod 24 rotates to drive the left ball nut 14 to move, the left ball nut 14 drives the first left slider 11, the first left upright post 2 and the first right upright post 3 to move, and further the first spindle 21 moves, when the portal frame where the second spindle 22 is located needs to move, the power supply of the right servo motor 8 is switched on, the mainframe box 23 controls the right servo motor 8 to rotate, so that the right servo motor 8 drives the right screw rod 25 to rotate, the rotation of the right screw rod 25 drives the right ball nut 18 to move, so that the right ball nut 18 drives the second right slider 16, the second right upright post 5 and the second left upright post 4 to move, and then the second spindle 22 is moved, when the second spindle 22 collides with the portal frame of the first spindle 21, the proximity sensor 36 transmits information to the main cabinet 23, the main cabinet 23 respectively stops the rotation of the left screw rod 24 and the right screw rod 25 through the band-type brake devices of the left servo motor 7 and the right servo motor 8, when the proximity sensor 36 is damaged and cannot work, the anti-collision ring 38 is extruded to drive the guide post 27 to contract towards the inside of the shell 26, the guide post 27 drives the contact post to contact with the right pole block 31, so that an electric path is formed among the left pole block 39, the second spring 34, the contact post 29 and the right pole block 31, and further the main cabinet 23 respectively stops the rotation of the left screw rod 24 and the right screw rod 25 through the band-type brake devices of the left servo motor 7 and the right servo motor 8, so as to realize the anti-collision bipolar protection of the portal frame of the second spindle 22 and the first spindle 21.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a five machining center's two longmen collision device which characterized in that: the machine tool comprises a machine tool body (1), wherein two mounting grooves (9) are formed in the outer wall of the top of the machine tool body (1), one inner wall of each of the two mounting grooves (9) is connected with a slide rail (10) through a bolt, the inside of one mounting groove (9) is connected with a left screw rod (24) through a bearing seat, the inside of the other mounting groove (9) is connected with a right screw rod (25) through a bearing seat, the outer wall of one side of the machine tool body (1) is connected with a left servo motor (7) through a bolt, one end of an output shaft of the left servo motor (7) is connected with the left screw rod (24) through a coupler, the outer wall of one side of the machine tool body (1) is connected with a right servo motor (8) through a bolt, one end of an output shaft of the right servo motor (8) is connected with the right screw rod (25) through a coupler, a first main shaft (21) is arranged between the first left upright (2) and the first right upright (3), the outer wall of the bottom of the first left upright (2) is connected with a first left slide block (11) through a bolt, the inside of the first left slide block (11) is connected with a left ball nut (14) through a bolt, the left ball nut (14) is connected with a left screw rod (24) through a thread, the top of the machine tool body (1) is provided with a second left upright (4) and a second right upright (5), a second main shaft (22) is arranged between the second left upright (4) and the second right upright (5), the outer wall of the bottom of the second right upright (5) is connected with a second right slide block (16) through a stud, the inside of the second right slide block (16) is connected with a right ball nut (18) through a bolt, and the right ball nut (18) is connected with a right screw rod (25) through a thread, the outer wall of one side and the outer wall of the bottom of the second main shaft (22) are both connected with an anti-collision device body (40) through bolts, the anti-collision device body (40) comprises a shell (26), a guide post (27) is connected in the shell (26) in a sliding way, a sliding hole (28) is formed in the guide post (27), a contact post (29) is connected in the sliding hole (28) in a sliding manner, a left pole block (39) and a second spring (34) are arranged in the slide hole (28), and the second spring (34) is positioned between the left pole piece (39) and the contact column (29), a first spring (30) is arranged in the shell (26), a right pole block (31) is fixedly connected with the inner wall of one side of the shell (26), a placing groove (35) is formed in the outer wall of one side of the guide column (27), a proximity sensor (36) is arranged in the placing groove (35), and a main case (23) is arranged on one side of the machine body (1).

2. The double gantry collision avoidance device of the five-axis machining center of claim 1, wherein: the outer wall of the bottom of the first right upright post (3) is connected with a first right sliding block (12) through a stud, and the outer wall of the bottom of the second left upright post (4) is connected with a second left sliding block (17) through a bolt.

3. The double gantry collision avoidance device of the five-axis machining center of claim 1, wherein: the top outer wall of lathe bed (1) has workstation (6) through bolted connection, and workstation (6) are located between first left stand (2) and first right stand (3).

4. The double gantry collision avoidance device of the five-axis machining center of claim 1, wherein: a first left sliding groove (13) is formed in the outer wall of one side of the first left sliding block (11), and the first left sliding block (11) is connected with the sliding rail (10) in a sliding mode through the first left sliding groove (13).

5. The double gantry collision avoidance device of the five-axis machining center according to claim 2, wherein: a first right sliding groove (15) is formed in the outer wall of one side of the first right sliding block (12), and the first right sliding block (12) is connected with the sliding rail (10) in a sliding mode through the first right sliding groove (15).

6. The double gantry collision avoidance device of the five-axis machining center according to claim 2, wherein: and a second left sliding groove (20) is formed in the outer wall of one side of the second left sliding block (17), and the second left sliding block (17) is connected with the sliding rail (10) in a sliding mode through the second left sliding groove (20).

7. The double gantry collision avoidance device of the five-axis machining center of claim 1, wherein: and a second right sliding groove (19) is formed in the outer wall of one side of the second right sliding block (16), and the second right sliding block (16) is connected with the sliding rail (10) in a sliding mode through the second right sliding groove (19).

8. The double gantry collision avoidance device of the five-axis machining center of claim 1, wherein: a baffle ring (37) is welded outside the guide post (27), and an anti-collision ring (38) is arranged on one side of the baffle ring (37).

9. The dual-gantry collision avoidance device of the five-axis machining center of claim 8, wherein: the anti-collision ring (38) is sleeved outside the guide post (27), and the proximity sensor (36) is positioned inside the anti-collision ring (38).

10. The double gantry collision avoidance device of the five-axis machining center of claim 1, wherein: the outer wall of one side of the contact column (29) is provided with a limiting groove (33), the outer wall of one side of the guide column (27) is inserted with a limiting column (32), and the bottom end of the limiting column (32) extends into the limiting groove (33).

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