CN115179080A

CN115179080A - Gantry machining center capable of automatically pressing cutter to prevent vibration

Info

Publication number: CN115179080A
Application number: CN202210740230.6A
Authority: CN
Inventors: 苏剑超; 谭礼财; 林子谋
Original assignee: Changpu Intelligent Equipment Guangdong Co ltd
Current assignee: Changpu Intelligent Equipment Guangdong Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-14
Anticipated expiration: 2042-06-28
Also published as: CN115179080B

Abstract

The invention discloses a gantry machining center capable of automatically pressing knives to resist vibration.A main shaft machining mechanism is provided with an automatic knife pressing mechanism, and the automatic knife pressing mechanism comprises a driving structure, a ring part, a pushing part, an elastic part, a pressing ball and a pressing block; the annular part comprises an annular main body, a first connecting rod and a first push block, an annular mounting groove is concavely arranged on the surface of the main shaft, and the driving structure drives the annular main body to rotate in the annular mounting groove; the pushing piece comprises a pushing rod and a second pushing block; a first channel penetrates through the side wall of the annular mounting groove; the pressing ball and the pressing block are positioned in the first channel. When the ball pressing device works, the driving structure drives the annular main body to rotate towards the direction of the second push block, the first push block contacts the second push block, and the second push block and the push rod are pushed to move towards the ball pressing direction; the push rod pushes the pressing ball, and the pressing ball pushes one end of the pressing block to extend into the cutter mounting cavity to tightly press the cutter; thereby realized automatic pressure sword, effectively avoided having the vibration that produces because of having the clearance between cutter and the cutter installation cavity, guaranteed the precision of processing.

Description

Gantry machining center capable of automatically pressing knife to resist shock

Technical Field

The invention relates to the technical field of machining centers, in particular to a gantry machining center capable of automatically pressing knives to prevent vibration.

Background

The machining center Machine is a metal machining center Machine, which is also called a CNC Machine, and is called a machining center for short (english name is Computerized Numerical Control Machine for short CNC). The metal processing center is a high-efficiency automatic machine tool which is usually composed of a control system, a servo system, a detection system, a mechanical transmission system and other auxiliary systems and is suitable for processing workpieces with complex shapes. The metal processing center is provided with a tool magazine, has an automatic tool changing function, and is a numerical control machine tool for performing multi-process processing on a workpiece after the workpiece is clamped once. The metal processing center is a highly electromechanical integrated machine tool, after a workpiece is clamped, the numerical control system can control the machine tool to automatically select a cutter, replace the cutter, automatically set a tool, automatically change the rotating speed of a main shaft, feed amount and the like according to different procedures, and can continuously complete various procedures such as drilling, boring, milling, reaming, tapping and the like, so that the time of the workpiece clamping, the time of auxiliary procedures such as measurement, machine tool adjustment and the like is greatly reduced, and the machine tool has good economic benefits for parts which are relatively complex in processing shape, relatively high in precision requirement and frequent in variety replacement.

However, the machining centers on the market currently have the following problems: the cutter and a cutter mounting cavity on the main shaft mechanism are mounted in an assembly tolerance mode, namely a gap exists between the cutter and the cutter mounting cavity, and the existence of the gap can cause the cutter to vibrate during machining; and long-time use, the clearance can aggravate to the cutter vibration is more violent, produces very big influence to the precision of work piece processing.

Disclosure of Invention

In view of the above, the present invention is directed to the defects of the prior art, and the main object of the present invention is to provide a gantry machining center capable of automatically pressing a knife to prevent vibration, which has the function of automatically pressing a knife and effectively prevents the knife from vibrating in a knife mounting cavity.

In order to achieve the purpose, the invention adopts the following technical scheme: a gantry machining center capable of automatically pressing knives and preventing vibration comprises: the device comprises a base, a processing table and a portal frame, wherein the base is provided with the processing table and the portal frame; the portal frame is positioned beside the processing table; the side of the portal frame is arranged at the tool magazine; a main shaft machining mechanism is arranged on the portal frame and moves up and down above the machining table; the main shaft machining mechanism comprises an installation frame and a main shaft, the installation frame is arranged on a portal frame, the main shaft is arranged on the installation frame, and a cutter installation cavity is concavely arranged on the bottom surface of the main shaft;

the automatic cutter pressing mechanism comprises a driving structure, a ring-shaped part, a pushing part, an elastic part, a pressing ball and a pressing block; the driving structure is arranged at the lower end of the mounting rack and is positioned beside the main shaft;

the annular piece comprises an annular main body, a first connecting rod and a first push block, wherein a connecting part is arranged on the outer surface of the annular main body and is connected with the output end of the driving structure; one end of the first connecting rod is connected to the inner surface of the annular main body; the first push block is connected to the other end of the first connecting rod; an annular mounting groove is concavely formed in the surface of the lower end of the main shaft, the driving structure drives the annular main body to rotate in the annular mounting groove, and the first connecting rod and the first push block rotate along with the annular main body;

the pushing piece comprises a push rod and a second pushing block connected to one end of the push rod; a first channel communicated with the cutter mounting cavity penetrates through the side wall of the annular mounting groove facing the cutter mounting cavity; the push rod is inserted into the first channel, and the second push block is positioned in the annular mounting groove and beside the first push block; one end of the elastic piece is abutted against the inner wall of the first channel, and the other end of the elastic piece is abutted against the side wall, close to the first channel, of the second push block;

the pressing ball and the pressing block are positioned in the first channel, and the pressing block is close to the cutter mounting cavity; the pressing ball is positioned between the pressing block and the push rod;

when the ball pressing device works, the driving structure drives the annular main body to rotate towards the direction of the second push block, the first push block is contacted with the second push block, and the second push block and the push rod are pushed to move towards the ball pressing direction; the push rod pushes the pressing ball, and the pressing ball pushes one end of the pressing block to extend into the cutter mounting cavity to press the cutter;

when the tool is changed, the driving structure drives the annular main body to rotate in the direction away from the second push block, the first push block is separated from the second push block, the push piece recovers under the elastic action of the elastic piece, one end of the push rod is separated from the press ball, the press ball and the press block are not extruded any more, and when the tool is pulled out of the tool mounting cavity, one end of the press block is stressed to enable the press block to slide into the first channel.

In one embodiment, the first pushing block has a first inclined surface, correspondingly, the second pushing block has a second inclined surface, and when the driving structure drives the annular main body to rotate towards the direction of the second pushing block, the first inclined surface contacts with the second inclined surface to push the second pushing block to move towards the ball pressing direction.

In one embodiment, the annular body comprises two semicircular rings, two ends of the two semicircular rings are locked through screws, and a plurality of first connecting rods are arranged on the inner walls of the two semicircular rings at intervals.

In one embodiment, the driving structure comprises a motor and a gear arranged on an output shaft of the motor, wherein the connecting part on the outer wall of the semicircular ring is a tooth part, and the gear is meshed with the tooth part.

In one embodiment, the annular body is convexly provided with an annular guide rail on the bottom surface, the annular mounting groove is concavely provided with an annular guide groove on the bottom surface, and the annular guide rail is rotatably arranged in the annular guide groove.

In one embodiment, the tool setting device further comprises a manual cutter pressing mechanism, the manual cutter pressing mechanism is a screw, a second channel is concavely arranged on the bottom surface of the main shaft and is located beside the tool mounting cavity, and the other end of the second channel is communicated with the first channel; an internal thread is arranged in the second channel, the screw is in threaded connection with the internal thread, and the upper end of the screw is a pointed end; when the automatic cutter pressing mechanism works, the tip end part is positioned in the second channel;

when the cutter is pressed manually, the screw is screwed upwards, the tip end enters the first channel, the tip end actuates the press ball to move towards the cutter, and the press ball drives the press block to move towards the cutter, so that the press block presses the cutter.

In one embodiment, the device further comprises a Y-axis mechanism, an X-axis mechanism and a Z-axis mechanism; the Y-axis mechanism is arranged on the base, the machining table is connected with the output end of the Y-axis mechanism, and the Y-axis mechanism drives the machining table to move along the Y-axis direction; the X-axis mechanism is arranged on the portal frame, and the output end of the X-axis mechanism is connected with the Z-axis mechanism and drives the Z-axis mechanism to move along the X-axis direction; and the output end of the Z-axis mechanism is connected with the main shaft machining mechanism and drives the main shaft machining mechanism to move up and down.

In one embodiment, the upper end of the portal frame is transversely provided with a first slide rail and a second slide rail, and the mounting frame is slidably arranged on the first slide rail and the second slide rail through a slide block; the first sliding rail is arranged on the top surface of the portal frame, and two sliding chutes on the first sliding rail are transversely arranged; the second slide rail is arranged on the front side surface of the portal frame, and two slide grooves on the second slide rail are vertically arranged;

an organ type dust cover covers the X-axis mechanism, and correspondingly, the organ type dust cover penetrates through the mounting frame; the organ type dust cover comprises a first guide sliding part positioned at the upper end of the organ type dust cover and a second guide sliding part positioned at the lower end of the organ type dust cover; the first sliding guide part is slidably arranged in the sliding groove on the rear side surface of the first sliding rail; the second guide sliding part is slidably mounted in the sliding groove on the bottom surface of the second sliding rail.

In one embodiment, the X-axis mechanism comprises an X-axis sliding seat, and an avoidance space is formed in the front side surface of the X-axis sliding seat; the Z-axis mechanism comprises a Z-axis motor, is arranged on the X-axis sliding seat and is positioned above the avoidance space; a screw rod is connected to an output shaft of the Z-axis motor and extends into the avoiding space; a first mounting block is arranged on the rear side surface of the mounting frame, a nut piece is arranged on the first mounting block, the first mounting block and the nut piece are located in the avoidance space, the nut piece is in threaded connection with the screw rod, and the Z-axis motor drives the spindle machining mechanism to move up and down;

the two side faces of the first installation block are provided with roller mechanisms, the two side faces of the avoidance space are rolling guide faces, and the output ends of the roller mechanisms roll along the corresponding rolling guide faces when the roller mechanisms move up and down along the first installation block.

In one embodiment, the roller mechanism comprises a second mounting block and a roller, wherein the second mounting block is arranged on the side surface of the first mounting block; the side face, deviating from the first mounting block, of the second mounting block is provided with a mounting cavity, and the roller is rotatably arranged in the mounting cavity and exposed out of the mounting cavity.

Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme shows that:

firstly, the annular main body is driven to rotate towards the direction of the second push block through the driving structure, when the annular main body rotates to a certain angle, the first push block contacts the second push block and pushes the second push block and the push rod to move towards the ball pressing direction. The push rod promotes the pressure ball, presses the ball to promote briquetting one end and stretches into in the cutter installation cavity and compress tightly the cutter to realized automatic pressure sword, effectively avoided having the vibration that the clearance produced between cutter and the cutter installation cavity, guaranteed the precision of processing. Even if the pressing block is worn after long-time use, the pressing block can move towards the direction of the cutter by adjusting the rotating angle of the driving structure, and can be continuously used.

Secondly, through the arrangement of the manual cutter pressing mechanism and the automatic cutter pressing mechanism, the machining center has the functions of manually pressing the cutter and automatically pressing the cutter, an operator can select any one of the functions, and the use is flexible and convenient

In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of a machining center provided by an embodiment of the present invention;

FIG. 2 is a first partial assembled perspective view of a machining center provided in accordance with an embodiment of the present invention;

fig. 3 is an assembly view of a spindle machining mechanism and an automatic cutter pressing mechanism according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the spindle assembled with the automatic plunge cutter mechanism provided in accordance with an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of the automatic blade pressing mechanism shown in FIG. 4 at A;

FIG. 6 is an enlarged view of a portion of the automatic blade pressing mechanism at A in FIG. 4 in a non-operating state;

FIG. 7 is an enlarged view of a portion of the manual blade pressing mechanism shown in FIG. 4 at A;

FIG. 8 is a schematic structural diagram of a ring assembly provided by an embodiment of the present invention;

FIG. 9 is a second partially assembled perspective view of a machining center provided by an embodiment of the present invention;

FIG. 10 is an enlarged view of a portion of FIG. 9 at A;

FIG. 11 is a third partially assembled perspective view of a machining center provided in accordance with an embodiment of the present invention;

FIG. 12 is a first angled partially exploded view provided by an embodiment of the present invention;

FIG. 13 is a second angled partially exploded view provided by an embodiment of the present invention;

FIG. 14 is an enlarged view of a portion of FIG. 13 at A;

FIG. 15 is a sectional view of a spindle machining mechanism according to an embodiment of the invention;

fig. 16 is a partial enlarged view at B in fig. 15.

Reference numerals are as follows:

10. base 20 and processing table

30. Portal frame 40 and spindle machining mechanism

41. Mounting rack 42 and main shaft

43. First mounting block 44, nut member

401. Cutter mounting cavity 402, annular mounting groove

403. First channel 404, annular guide groove

405. Second channel 50, tool magazine

60. Automatic cutter pressing mechanism 61 and driving structure

611. Motor 612 and gear

62. Ring-shaped member 621, ring-shaped body

601. Semicircle ring 6211, connecting part (tooth part)

6212. Annular guide rail 622, first connecting rod

623. First push block 6231, first inclined plane

63. Pusher 631 and push rod

632. First push block 6321, second inclined plane

64. Elastic member 65, ball press

66. Pressing block 70, hand knife pressing mechanism (screw)

71. Tip 81, Y-axis mechanism

82. X-axis mechanism 821, X-axis slide

801. Avoidance space 83 and Z-axis mechanism

831. Z-axis motor 832 and screw rod

91. First slide rail 92 and second slide rail

901. Chute 100 and organ type dust cover

101. First and second sliding

guide parts

102 and 102

110. Roller mechanism 111 and second mounting block

112. And (4) a roller.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 16, the present application provides a gantry machining center capable of automatic blade pressing and vibration prevention, comprising: the machining device comprises a base 10, wherein a machining table 20 and a portal frame 30 are arranged on the base 10, and the machining table 20 is used for fixing a machined workpiece. The gantry 30 is located beside the processing table 20, and the gantry 30 and the processing table 20 are movable relative to each other. The side of the portal frame 30 is arranged at the tool magazine 50. A main shaft processing mechanism 40 is arranged on the portal frame 30, and the main shaft processing mechanism 40 moves up and down above the processing table 20; the spindle machining mechanism 40 includes a mounting block 41 and a spindle 42, the mounting block 41 is disposed on the gantry 30, and it is understood that the mounting block 41 is directly mounted on the gantry 30 or indirectly mounted on the gantry 30 through other mechanisms. The main shaft 42 is arranged on the mounting frame 41, a cutter mounting cavity 401 is concavely arranged on the bottom surface of the main shaft 42, and the cutter mounting cavity 401 is used for mounting and fixing a cutter for machining.

The output end of the spindle machining mechanism 40 is provided with an automatic cutter pressing mechanism 60, and the automatic cutter pressing mechanism comprises a driving structure 61, a ring-shaped member 62, a pushing member 63, an elastic member 64, a pressing ball 65 and a pressing block 66. The driving structure 61 is disposed at the lower end of the mounting frame 41 and beside the main shaft 42. The annular member 62 comprises an annular main body 621, a first connecting rod 622 and a first pushing block 623, wherein a connecting portion 6211 is arranged on the outer surface of the annular main body 621, and the connecting portion 6211 is connected with the output end of the driving structure 61. One end of the first connecting rod 622 is connected to the inner surface of the ring body 621; the first push block 623 is connected to the other end of the first connecting rod 622. The lower end surface of the main shaft 42 is concavely provided with an annular mounting groove 402, the driving structure 61 drives the annular main body 621 to rotate in the annular mounting groove 402, and the first connecting rod 622 and the first pushing block 623 rotate along with the annular main body.

The pushing member 63 includes a pushing rod 631 and a second pushing block 632 connected to one end of the pushing rod. A first channel 403 communicated with the cutter mounting cavity penetrates through the side wall of the annular mounting groove 402 facing the cutter mounting cavity 401. The push rod 631 is inserted into the first channel 403, and the second push block 632 is located in the annular mounting groove 402 and beside the first push block 623. One end of the elastic member 64 abuts against the inner wall of the first channel 403, and the other end abuts against the side wall of the second push block 632 close to the first channel, optionally, the elastic member 64 is a spring.

The pressing ball 65 and the pressing block 66 are positioned in the first channel 403, and the pressing block 66 is close to the cutter mounting cavity 401; the pressing ball 65 is located between the pressing block 66 and the push rod 631.

In operation, the driving structure 61 drives the annular main body 621 to rotate towards the second pushing block 632, and when the annular main body rotates to a first angle, the first pushing block 623 contacts the second pushing block 632 and pushes the second pushing block 632 and the push rod 631 to move towards the ball 65. The push rod 631 pushes the pressing ball 65, the pressing ball 65 pushes one end of the pressing block 66 to stretch into the cutter mounting cavity 401 to press the cutter tightly, so that automatic cutter pressing is achieved, vibration caused by a gap between the cutter and the cutter mounting cavity 401 is effectively avoided, and machining accuracy is guaranteed. Even if the pressing block 66 is worn after long-term use, the pressing block 66 can move towards the direction of the cutter by adjusting the rotation angle of the driving structure 61, and can be continuously used.

When the tool is changed, the driving structure 61 drives the annular main body 621 to rotate away from the second push block 632, the first push block 623 is separated from the second push block 632, the pushing member 63 is restored under the elastic action of the elastic member 64, one end of the push rod 631 is separated from the pressing ball, at this time, the pressing ball 65 and the pressing block 66 are not extruded any more, and when the tool is pulled out of the tool mounting cavity 401, one end of the pressing block 66 is stressed (extends into the tool mounting cavity 401), so that the pressing block 66 is enabled to slide into the first channel 402. After the tool is changed, the tool is pressed in the tool mounting cavity 401 through the above steps

The first pushing block 623 is provided with a first inclined surface 6231, correspondingly, the second pushing block 632 is provided with a second inclined surface 6321, when the driving structure 61 drives the annular main body 621 to rotate towards the second pushing block 632, the first inclined surface 6231 contacts with the second inclined surface 6321 to push the second pushing block 632 to move towards the pressing ball 65, so as to push one end of the pressing block 66 into the tool mounting cavity 401 to press the tool.

The annular main body 621 comprises two semi-circular rings 601, two screw locking is passed through at the both ends of semi-circular ring 601, and it can be understood that one of them the through-hole transversely runs through to the one end of semi-circular ring 601, another the corresponding end of semi-circular ring 601 is concave to be equipped with the screw hole, the screw thread section of screw pass behind the through-hole with screw hole threaded connection to link together two semi-circular rings 601. When the annular body 621 is designed into the two half-rings 601, the annular body 621 is convenient to be mounted on the main shaft 42 by respectively mounting the two half-rings 601 on the main shaft 42 and then locking the two half-rings 601. The first connecting rods 622 are arranged on the inner walls of the two semicircular rings at intervals. Optionally, two first connecting rods 622 are spaced apart from each other on the inner wall of each semicircular ring 601, and the first connecting rods 622 on two semicircular rings 601 face each other two by two.

The driving structure 61 includes a motor 611 and a gear 612 disposed on an output shaft of the motor, wherein a connecting portion 6211 on an outer wall of the semicircular ring 601 is a tooth portion 6211, and the gear 612 is engaged with the tooth portion 6211. Because the ring-shaped member 62 can push the pressing block 66 only by rotating within a certain range, only the tooth portion 621 needs to be set to a small section, which reduces the processing and saves the cost.

The bottom surface of the annular main body 621 is convexly provided with an annular guide rail 6212, the bottom surface of the annular mounting groove 402 is concavely provided with an annular guide groove 404, and the annular guide rail 6212 is rotatably arranged in the annular guide groove 404. The annular body 621 is rotatably disposed in the annular mounting groove 402 by the engagement of the annular guide groove 404 and the annular guide rail 6212.

The machining center further comprises a manual cutter pressing mechanism 70 which is a screw 70, a second channel 405 is concavely arranged on the bottom surface of the main shaft 42, the second channel 405 is located beside the cutter mounting cavity 401, and the other end of the second channel 405 is communicated with the first channel 403. The aperture of the second channel 405 is smaller than the diameter of the pressure ball 65 to avoid the pressure ball 65 from falling into the second channel 405. An internal thread is arranged in the second passage 405, the screw 70 is in threaded connection with the internal thread, and the upper end of the screw is a tip part 71. When the automatic blade depressing mechanism is operated, the tip portion 71 is located in the second channel 405, and the screw 70 is normally hidden in the second channel 405. When the automatic cutter pressing mechanism breaks down or needs manual adjustment, the manual cutter pressing mechanism can be used for pressing the cutter.

When the cutter is pressed manually, the screw 70 is screwed upwards, the tip part 71 enters the first channel, the tip part 71 actuates the pressure ball 65 to move towards the cutter, and the pressure ball 65 drives the pressure block 66 to move towards the cutter, so that the pressure block presses the cutter. Through the arrangement of the manual cutter pressing mechanism and the automatic cutter pressing mechanism 60, the machining center has the functions of manually pressing the cutter and automatically pressing the cutter, an operator can select any one of the functions, and the use is flexible and convenient.

The machining center further comprises a Y-axis mechanism 81, an X-axis mechanism 82 and a Z-axis mechanism 83, wherein the Y-axis mechanism 81, the X-axis mechanism 82 and the Z-axis mechanism 83 are all structures of servo motors matched with screw rods, the structures are the prior art, and detailed description is omitted here. The Y-axis mechanism 82 is disposed on the base 10, the machining table 20 is connected to an output end of the Y-axis mechanism 81, and the Y-axis mechanism 81 drives the machining table 20 to move in the Y-axis direction. The X-axis mechanism 82 is arranged on the portal frame 30, and the output end of the X-axis mechanism 82 is connected with the Z-axis mechanism 83 and drives the Z-axis mechanism 83 to move along the X-axis direction. The output end of the Z-axis mechanism 83 is connected to the spindle machining mechanism 40 and drives the spindle machining mechanism 40 to move up and down.

The upper end of the gantry 30 is transversely provided with a first slide rail 91 and a second slide rail 92, and the mounting frame 41 is slidably arranged on the first slide rail 91 and the second slide rail 92 through a slide block. The first slide rail 91 is arranged on the top surface of the portal frame 30, and the two slide grooves 901 on the first slide rail 91 are transversely arranged. The second slide rail 92 is disposed on the front side surface of the gantry 30, and two sliding grooves 901 on the second slide rail 92 are vertically arranged.

The X-axis mechanism is covered with an organ type dust cover 100, and correspondingly, the organ type dust cover 100 passes through the mounting frame 41. The organ type dust cover 100 comprises a first slide guide part 101 at the upper end of the organ type dust cover and a second slide guide part 102 at the lower end of the organ type dust cover, and the first slide guide part 101 is slidably mounted in the slide groove 901 on the rear side surface of the first slide rail 91. The second sliding guide part 102 is slidably mounted in the sliding groove 901 on the bottom surface of the second sliding rail 92. The first slide guiding part 101 and the corresponding slide block share one of the slide grooves 901 on the first slide rail 91, and the second slide guiding part 102 and the corresponding slide block share one of the slide grooves 901 on the second slide rail 92, so that a track is not required to be added on a portal frame for the organ type dust cover 100 independently, the structure is simplified, the production cost is reduced, and a lot of space is reserved for installing other parts.

Optionally, the area of the top surface of the organ type dust cover 100 is far smaller than the area of the front side surface of the organ type dust cover 100, which effectively reduces dust falling on the outer surface of the organ type dust cover 100.

The X-axis mechanism 82 includes an X-axis slide base 821, and an avoidance space 801 is provided on a front side surface of the X-axis slide base 821. The Z-axis machine 83 includes a Z-axis motor 831, which is disposed on the X-axis slide base 821 and above the avoiding space 801. A screw rod 832 is connected to an output shaft of the Z-axis motor 831, and the screw rod 832 extends into the avoiding space 801. A first mounting block 43 is arranged on the rear side surface of the mounting frame 41, a nut member 44 is arranged on the first mounting block 43, the first mounting block 43 and the nut member 44 are located in the avoiding space 801, the nut member 44 is in threaded connection with the lead screw 832, and the Z-axis motor 831 drives the spindle machining mechanism 40 to move up and down;

the two side surfaces of the first mounting block 43 are both provided with roller mechanisms 110, the two side surfaces of the avoidance space 801 are rolling guide surfaces 802, and when the roller mechanisms 110 move up and down along with the first mounting block 43, the output ends of the roller mechanisms 110 roll along the corresponding rolling guide surfaces 802. Through all being equipped with gyro wheel mechanism 110 on the both sides face at first installation piece 43, when first installation piece 43 moves about from top to bottom, gyro wheel mechanism's output rolls along the rolling face 802 that leads that corresponds to the atress on effective dispersion nut spare and the first installation piece makes main shaft processing module reciprocate more steadily smooth and easy, and gyro wheel mechanism ingenious use dodge the space lead the rolling face, need not and increase guide rail part outward, simple structure, and practical.

The roller mechanism 110 includes a second mounting block 111 and a roller 112, and the second mounting block 111 is disposed on a side surface of the first mounting block 43. The side surface of the second mounting block 111, which faces away from the first mounting block, is provided with a mounting cavity, and the roller 112 is rotatably arranged in the mounting cavity and exposes the mounting cavity.

Optionally, the roller 112 is a plastic roller or a bearing. In this embodiment, the roller 112 is preferably used as a bearing, and the number of the bearings is 3, and 3 bearings are arranged side by side. Compared with a plastic roller, the bearing can bear larger force, has longer service life and can roll more smoothly.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a but shockproof longmen machining center of automatic pressing sword which characterized in that includes: the device comprises a base, a processing table and a portal frame, wherein the base is provided with the processing table and the portal frame; the portal frame is positioned beside the processing table; the side of the portal frame is arranged at the tool magazine; a main shaft machining mechanism is arranged on the portal frame and moves up and down above the machining table; the main shaft machining mechanism comprises a mounting frame and a main shaft, the mounting frame is arranged on a portal frame, the main shaft is arranged on the mounting frame, and a cutter mounting cavity is concavely arranged on the bottom surface of the main shaft;

the annular part comprises an annular main body, a first connecting rod and a first push block, wherein a connecting part is arranged on the outer surface of the annular main body and is connected with the output end of the driving structure; one end of the first connecting rod is connected to the inner surface of the annular main body; the first push block is connected to the other end of the first connecting rod; an annular mounting groove is concavely formed in the surface of the lower end of the main shaft, the driving structure drives the annular main body to rotate in the annular mounting groove, and the first connecting rod and the first push block rotate along with the annular main body;

the pushing piece comprises a push rod and a second pushing block connected to one end of the push rod; a first channel communicated with the cutter mounting cavity penetrates through the side wall of the annular mounting groove facing the cutter mounting cavity; the push rod is inserted into the first channel, and the second push block is positioned in the annular mounting groove and beside the first push block; one end of the elastic piece is abutted against the inner wall of the first channel, and the other end of the elastic piece is abutted against the side wall of the second push block close to the first channel;

when the ball pressing device works, the driving structure drives the annular main body to rotate towards the direction of the second pushing block, and the first pushing block contacts with the second pushing block and pushes the second pushing block and the push rod to move towards the ball pressing direction; the push rod pushes the pressing ball, and the pressing ball pushes one end of the pressing block to extend into the cutter mounting cavity to press the cutter;

when the tool is replaced, the driving structure drives the annular main body to rotate in the direction away from the second pushing block, the first pushing block is separated from the second pushing block, the pushing piece recovers under the elastic action of the elastic piece, one end of the push rod is separated from the pressing ball, the pressing ball and the pressing block are not extruded any more, and when the tool is pulled out of the tool mounting cavity, one end of the pressing block is stressed to enable the pressing block to slide into the first channel.

2. The gantry machining center capable of automatically pressing knives and preventing vibration as claimed in claim 1, is characterized in that: the first push block is provided with a first inclined surface, correspondingly, the second push block is provided with a second inclined surface, and when the driving structure drives the annular main body to rotate towards the direction of the second push block, the first inclined surface is in contact with the second inclined surface so as to push the second push block to move towards the ball pressing direction.

3. The gantry machining center capable of automatically pressing and resisting vibration of the knife as claimed in claim 1, wherein: the annular main body comprises two semicircular rings, two ends of the two semicircular rings are locked through screws, and the first connecting rods are arranged on the inner walls of the two semicircular rings at intervals.

4. The gantry machining center capable of automatically pressing knives and preventing vibration as claimed in claim 3, is characterized in that: the driving structure comprises a motor and a gear arranged on an output shaft of the motor, wherein the connecting part on the outer wall of the semicircular ring is a tooth part, and the gear is meshed with the tooth part.

5. The gantry machining center capable of automatically pressing and resisting vibration as claimed in claim 1 or 3, wherein: the annular guide rail is convexly arranged on the bottom surface of the annular main body, the annular guide groove is concavely arranged on the bottom surface of the annular mounting groove, and the annular guide rail is rotatably arranged in the annular guide groove.

6. The gantry machining center capable of automatically pressing knives and preventing vibration as claimed in claim 1, is characterized in that: the manual cutter pressing mechanism is a screw, a second channel is concavely arranged on the bottom surface of the main shaft and is positioned beside the cutter mounting cavity, and the other end of the second channel is communicated with the first channel; an internal thread is arranged in the second channel, the screw is in threaded connection with the internal thread, and the upper end of the screw is a tip part; when the automatic knife pressing mechanism works, the tip part is positioned in the second channel;

7. The gantry machining center capable of automatically pressing knives and preventing vibration as claimed in claim 1, is characterized in that: the X-axis mechanism is connected with the Y-axis mechanism; the Y-axis mechanism is arranged on the base, the machining table is connected with the output end of the Y-axis mechanism, and the Y-axis mechanism drives the machining table to move along the Y-axis direction; the X-axis mechanism is arranged on the portal frame, and the output end of the X-axis mechanism is connected with the Z-axis mechanism and drives the Z-axis mechanism to move along the X-axis direction; and the output end of the Z-axis mechanism is connected with the main shaft machining mechanism and drives the main shaft machining mechanism to move up and down.

8. The gantry machining center with automatic knife pressing and shock proofing functions as claimed in claim 7, wherein: the upper end of the portal frame is transversely provided with a first slide rail and a second slide rail, and the mounting frame is slidably arranged on the first slide rail and the second slide rail through a slide block; the first sliding rail is arranged on the top surface of the portal frame, and two sliding chutes on the first sliding rail are transversely arranged; the second slide rail is arranged on the front side surface of the portal frame, and two slide grooves on the second slide rail are vertically arranged;

an organ type dust cover covers the X-axis mechanism, and correspondingly, the organ type dust cover penetrates through the mounting frame; the organ type dust cover comprises a first sliding guide part positioned at the upper end of the organ type dust cover and a second sliding guide part positioned at the lower end of the organ type dust cover; the first sliding guide part is slidably arranged in the sliding groove on the rear side surface of the first sliding rail; the second guide sliding part is slidably mounted in the sliding groove on the bottom surface of the second sliding rail.

9. The gantry machining center with automatic knife pressing and shock proofing functions as claimed in claim 7, wherein: the X-axis mechanism comprises an X-axis sliding seat, and an avoidance space is formed in the front side surface of the X-axis sliding seat; the Z-axis mechanism comprises a Z-axis motor which is arranged on the X-axis sliding seat and is positioned above the avoidance space; a screw rod is connected to an output shaft of the Z-axis motor and extends into the avoiding space; a first mounting block is arranged on the rear side surface of the mounting frame, a nut piece is arranged on the first mounting block, the first mounting block and the nut piece are located in the avoidance space, the nut piece is in threaded connection with the screw rod, and the Z-axis motor drives the spindle machining mechanism to move up and down;

the two side surfaces of the first mounting block are provided with roller mechanisms, the two side surfaces of the avoidance space are guide rolling surfaces, and when the roller mechanisms move up and down along with the first mounting block, the output ends of the roller mechanisms roll along the corresponding guide rolling surfaces.

10. The gantry machining center capable of automatically pressing knives and preventing vibration as claimed in claim 9, is characterized in that: the roller mechanism comprises a second mounting block and a roller, and the second mounting block is arranged on the side surface of the first mounting block; the side face, deviating from the first mounting block, of the second mounting block is provided with a mounting cavity, and the roller is rotatably arranged in the mounting cavity and exposed out of the mounting cavity.