CN115179080B - Gantry machining center capable of automatically pressing knife to prevent vibration - Google Patents
Gantry machining center capable of automatically pressing knife to prevent vibration Download PDFInfo
- Publication number
- CN115179080B CN115179080B CN202210740230.6A CN202210740230A CN115179080B CN 115179080 B CN115179080 B CN 115179080B CN 202210740230 A CN202210740230 A CN 202210740230A CN 115179080 B CN115179080 B CN 115179080B
- Authority
- CN
- China
- Prior art keywords
- pressing
- block
- annular
- mounting
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a gantry machining center capable of automatically pressing a cutter to prevent vibration, wherein an automatic cutter pressing mechanism is arranged on a main shaft machining mechanism and comprises a driving structure, an annular piece, a pushing piece, an elastic piece, a pressing ball and a pressing block; the annular piece comprises an annular main body, a first connecting rod and a first pushing block, an annular mounting groove is concavely formed in 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 push rod and a second push block; a first channel penetrates through the side wall of the annular mounting groove; the ball press and the pressing block are located in the first channel. When the ball pressing device works, the driving structure drives the annular main body to rotate towards the second pushing block, and the first pushing block contacts 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; thereby realizing automatic tool pressing, effectively avoiding vibration generated by the existence of a gap between the tool and the tool mounting cavity, and ensuring the machining precision.
Description
Technical Field
The invention relates to the technical field of machining centers, in particular to a gantry machining center capable of automatically pressing a cutter to prevent vibration.
Background
The machining center machine is a metal machining center machine tool, also called CNC machine tool, and is called as machining center for short (English name is Computerized Numerical Control Machine for CNC). The metal machining center is a high-efficiency automatic machine tool which is generally composed of a control system, a servo system, a detection system, a mechanical transmission system and other auxiliary systems and is suitable for machining workpieces with complex shapes. The metal machining center is provided with a tool magazine, has an automatic tool changing function, and is a numerical control machine tool for carrying out multi-working after clamping a workpiece for one time. The metal machining center is a highly electromechanical integrated machine tool, after workpiece clamping, the numerical control system can control the machine tool to automatically select a cutter, replace the cutter, automatically set the cutter, automatically change the rotating speed of a main shaft, the feeding amount and the like according to different working procedures, and can continuously finish various working procedures such as drilling, boring, milling, reaming, tapping and the like, thereby greatly reducing the auxiliary working procedure time such as workpiece clamping time, measurement, machine tool adjustment and the like, having more complex machining shape, higher precision requirement and good economic benefit for parts with frequent variety replacement.
However, the processing centers currently on the market have the following problems: the cutter and a cutter mounting cavity on the spindle mechanism are mounted in an assembly tolerance mode, namely a gap exists between the cutter and the spindle mechanism, and vibration is generated when the cutter is machined due to the existence of the gap; and long-time use, the clearance can aggravate to 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 aims at overcoming the drawbacks of the prior art, and its main objective is to provide a gantry machining center capable of automatically pressing and preventing vibration of a tool in a tool mounting cavity.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a gantry machining center capable of automatically pressing a knife to resist vibration, comprising: the base is provided with a processing table and a portal frame; the portal frame is positioned beside the processing table; the side of the portal frame is arranged on the tool magazine; the portal frame is provided with a main shaft processing mechanism which moves up and down above the processing table; the main shaft processing mechanism comprises a mounting frame and a main shaft, wherein the mounting frame is arranged on the portal frame, the main shaft is arranged on the mounting frame, and a cutter mounting cavity is concavely formed in the bottom surface of the main shaft;
the automatic tool pressing mechanism is arranged at the output end of the main shaft processing mechanism and comprises a driving structure, an annular piece, a pushing piece, an elastic piece, a pressing ball and a pressing block; the driving structure is arranged at the lower end of the mounting frame and is positioned beside the main shaft;
the annular piece comprises an annular main body, a first connecting rod and a first pushing block, wherein the outer surface of the annular main body is provided with a connecting part, and the connecting part 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 pushing block is connected to the other end of the first connecting rod; an annular mounting groove is concavely formed in the lower end surface 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 pushing 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, facing the cutter mounting cavity, of the annular mounting groove; 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 propped against the inner wall of the first channel, and the other end of the elastic piece is propped against the side wall of the second pushing block, which is close to the first channel;
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 second pushing block, and the first pushing block contacts with the second pushing block and pushes the second pushing block and the pushing 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 changed, 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 is restored under the action of the elastic force of the elastic piece, one end of the pushing 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 from the tool mounting cavity, one end of the pressing block is stressed, so that the pressing block is enabled to slide into the first channel.
In one embodiment, the first pushing block has a first inclined plane, and correspondingly, the second pushing block has a second inclined plane, and when the driving structure drives the annular main body to rotate towards the second pushing block, the first inclined plane contacts with the second inclined plane so as to push the second pushing block to move towards the ball pressing direction.
In one embodiment, the annular main body comprises two semicircular rings, two ends of the semicircular rings are locked by screws, and the 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, the connecting part on the outer wall of one semicircular ring is a tooth part, and the gear is meshed with the tooth part.
In one embodiment, the bottom surface of the annular main body is convexly provided with an annular guide rail, the bottom surface of the annular mounting groove is concavely provided with an annular guide groove, and the annular guide rail is rotatably arranged in the annular guide groove.
In one embodiment, the tool holder further comprises a manual tool pressing mechanism, wherein the manual tool pressing mechanism is a screw, a second channel is concavely arranged on the bottom surface of the main shaft, the second channel is positioned 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 tip part; when the automatic knife pressing mechanism works, the tip 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 pressing ball to move towards the cutter, and the pressing ball drives the pressing block to move towards the cutter, so that the pressing 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 processing table is connected with the output end of the Y-axis mechanism, and the Y-axis mechanism drives the processing 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; the output end of the Z-axis mechanism is connected with the main shaft processing mechanism and drives the main shaft processing mechanism to move up and down.
In one embodiment, a first sliding rail and a second sliding rail are transversely arranged at the upper end of the portal frame, and the mounting frame is slidably arranged on the first sliding rail and the second sliding rail through sliding blocks; the first sliding rail is arranged on the top surface of the portal frame, and two sliding grooves on the first sliding rail are transversely distributed; the second sliding rail is arranged on the front side surface of the portal frame, and two sliding grooves on the second sliding rail are vertically arranged;
the X-axis mechanism is covered with an organ type dust cover, and the organ type dust cover passes through the mounting frame correspondingly; 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 sliding guide part is slidably arranged 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 which is arranged on the X-axis sliding seat and is positioned above the avoidance space; the output shaft of the Z-axis motor is connected with a screw rod, and the screw rod extends into the avoidance space; the rear side surface of the mounting frame is provided with a first mounting block, the first mounting block is provided with a nut piece, the first mounting block and the nut piece are positioned in the avoidance space, the nut piece is in threaded connection with the screw rod, and the Z-axis motor drives the spindle processing mechanism to move up and down;
the two sides of the first installation block are respectively provided with a roller mechanism, the two sides of the avoidance space are guide rolling surfaces, and when the roller mechanisms move up and down along with the first installation block, the output ends of the roller mechanisms roll along the corresponding guide rolling surfaces.
In one embodiment, the roller mechanism comprises a second mounting block and a roller, the second mounting block being provided on a side of the first mounting block; the side surface of the second installation block, which is away from the first installation block, is provided with an installation cavity, and the roller is rotatably arranged in the installation cavity and is exposed out of the installation cavity.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
first, the annular main body is driven to rotate towards the second push block through the driving structure, and 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 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, so that automatic cutter pressing is realized, vibration caused by a gap between the cutter and the cutter mounting cavity is effectively avoided, and the machining accuracy is ensured. Even if the pressing block is worn after long-time use, the pressing block can be moved towards the direction of the cutter by adjusting the rotation angle of the driving structure, and the pressing block 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 cutters and automatically pressing cutters, and an operator can select any one for use, so that the machining center is flexible and convenient to use
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a perspective view of a machining center provided by an embodiment of the present invention;
FIG. 2 is a first partially assembled perspective view of a machining center provided in an embodiment of the invention;
FIG. 3 is an assembly diagram of a spindle tooling mechanism and an automatic tool pressing mechanism provided in an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a spindle and automatic hold down mechanism provided in an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of the automatic knife pressing mechanism of FIG. 4 in an operative condition;
FIG. 6 is an enlarged view of a portion of the automatic knife pressing mechanism of FIG. 4A in an inactive state;
FIG. 7 is an enlarged view of a portion of the manual knife pressing mechanism of FIG. 4A in operation;
FIG. 8 is a schematic view of a ring provided by an embodiment of the present invention;
FIG. 9 is a second partially assembled perspective view of a machining center provided in an embodiment of the 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 an embodiment of the invention;
FIG. 12 is a first angular partially exploded view provided by an embodiment of the present invention;
FIG. 13 is a second angular 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 cross-sectional view of a spindle processing mechanism according to an embodiment of the present invention;
fig. 16 is a partial enlarged view at B in fig. 15.
Reference numerals:
10. base 20 and processing table
30. Portal frame 40 and main shaft processing mechanism
41. Mounting frame 42, spindle
43. First mounting block 44, nut member
401. Tool mounting cavity 402, annular mounting groove
403. First channel 404, annular channel
405. Second channel 50, tool magazine
60. Automatic knife pressing mechanism 61 and driving structure
611. Motor 612, gear
62. Annular element 621, annular body
601. Semicircular 6211, connection portion (tooth portion)
6212. Annular guide 622, first connecting rod
623. First push block 6231, first inclined surface
63. Push member 631 and push rod
632. First push block 6321, second inclined plane
64. Elastic member 65, ball press
66. Pressing block 70, manual knife pressing mechanism (screw)
71. Tip 81 and Y-axis mechanism
82. X-axis mechanism 821 and X-axis slide
801. Avoidance space 83 and Z-axis mechanism
831. Z-axis motor 832 and screw rod
91. First slide rail 92, second slide rail
901. Chute 100, organ type dust cover
101. First guide and slide part 102, second guide and slide part
110. Roller mechanism 111, second mounting block
112. And a roller.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, 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 for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" 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 is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 16, the present application provides a gantry machining center capable of automatically pressing a tool to prevent vibration, comprising: the base 10, be equipped with processing platform 20 and portal frame 30 on the base 10, processing platform 20 is used for fixed processing work piece. The gantry 30 is located beside the processing table 20, the gantry 30 and the processing table 20 being movable relative to each other. The side of the portal frame 30 is provided with a tool magazine 50. A spindle processing mechanism 40 is arranged on the portal frame 30, and the spindle processing mechanism 40 moves up and down above the processing table 20; the spindle processing mechanism 40 includes a mounting frame 41 and a spindle 42, wherein the mounting frame 41 is disposed on the gantry 30, and it is understood that the mounting frame 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, and 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 processing mechanism 40 is provided with an automatic tool pressing mechanism 60, which comprises a driving structure 61, an annular piece 62, a pushing piece 63, an elastic piece 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 ring-shaped member 62 includes a ring-shaped body 621, a first connecting rod 622 and a first push block 623, wherein a connecting portion 6211 is provided on an outer surface of the ring-shaped body 621, and the connecting portion 6211 is connected to an output end of the driving structure 61. One end of the first connecting rod 622 is connected to the inner surface of the annular body 621; the first push block 623 is connected to the other end of the first connecting rod 622. An annular mounting groove 402 is concavely formed on the lower end surface of the main shaft 42, 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 push rod 631 and a second push block 632 connected to one end of the push rod. The side wall of the annular mounting groove 402, which faces the cutter mounting cavity 401, is penetrated with a first channel 403 communicated with the cutter mounting cavity. 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 pushing block 632 adjacent to the first channel, and optionally, the elastic member 64 is a spring.
The press ball 65 and the press block 66 are located within the first channel 403, the press block 66 being adjacent to the tool mounting cavity 401; the ball 65 is located between the press block 66 and the push rod 631.
In operation, the driving structure 61 drives the annular main body 621 to rotate towards the second push block 632, and when the annular main body rotates to a first angle, the first push block 623 contacts the second push block 632 and pushes the second push block 632 and the push rod 631 to move towards the ball 65. The push rod 631 promotes the press ball 65, press ball 65 promotes briquetting 66 one end stretches into in the cutter installation cavity 401 presses the cutter to realize automatic cutter pressing, effectively avoid the vibration that produces because of there is the clearance between cutter and the cutter installation cavity 401, guaranteed the precision of processing. Even if the pressing block 66 is worn after long-time use, the pressing block 66 can be moved towards the direction of the cutter by adjusting the rotation angle of the driving structure 61, and the pressing block can be continuously used.
During tool changing, 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 push member 63 is restored under the action of the elastic force 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 pressed any more, and when the tool is pulled out from the tool mounting cavity 401, one end of the pressing block 66 is stressed (stretches into the end of the tool mounting cavity 401), so that the pressing block 66 is caused to slide into the first channel 402. After tool changing, the tool is pressed in the tool mounting cavity 401 by the above steps
The first pushing block 623 has a first inclined surface 6231, and correspondingly, the second pushing block 632 has a second inclined surface 6321, and 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 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 includes two semicircle rings 601, two both ends of semicircle ring 601 pass through the screw closure, can understand that one of them semicircle ring 601's one end transversely runs through there is the through-hole, another semicircle ring 601's corresponding end 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 semicircle rings 601. In the installation, the two semicircular rings 601 are respectively installed on the main shaft 42, and then the two semicircular rings 601 are locked, so that the annular main body 621 is conveniently installed on the main shaft 42 by designing the annular main body 621 into the two semicircular rings 601. The plurality of first connecting rods 622 are arranged on the inner walls of the two semicircular rings at intervals. Optionally, two first connecting rods 622 are disposed on the inner wall of each semicircular ring 601 at intervals, and the first connecting rods 622 on the two semicircular rings 601 are opposite to each other.
The driving structure 61 includes a motor 611 and a gear 612 disposed on an output shaft of the motor, a connecting portion 6211 on an outer wall of one of the semicircular rings 601 is a tooth portion 6211, and the gear 612 is meshed with the tooth portion 6211. Because the annular member 62 can push the pressing block 66 only by rotating a certain range, the tooth portions 621 are only required to be arranged into a small section, so that the processing is reduced, and the cost is saved.
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 provided in the annular mounting groove 402 by the cooperation of the annular guide groove 404 and the annular guide rail 6212.
The machining center further comprises a manual tool pressing mechanism 70, the manual tool pressing mechanism 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 tool 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 ball 65 so as to avoid the ball 65 falling into the second channel 405. The second channel 405 is internally provided with an internal thread, the screw 70 is in threaded connection with the internal thread, and the upper end of the screw is a tip portion 71. In operation of the automatic knife pressing mechanism, the tip portion 71 is positioned in the second channel 405, and typically the screw 70 is concealed in the second channel 405. When the automatic knife pressing mechanism fails or manual adjustment is needed, the knife can be pressed by the manual knife pressing mechanism.
When the cutter is pressed manually, the screw 70 is screwed upwards, the tip end portion 71 enters the first channel, the tip end portion 71 actuates the pressing ball 65 to move towards the cutter, and the pressing ball 65 drives the pressing block 66 to move towards the cutter, so that the pressing 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 cutters and automatically pressing cutters, and an operator can select any one for use, so that the machining center is flexible and convenient to use.
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 a servo motor matched with a screw rod, and the structures are of the prior art and are not described in detail herein. The Y-axis mechanism 82 is disposed on the base 10, the processing table 20 is connected to an output end of the Y-axis mechanism 81, and the Y-axis mechanism 81 drives the processing table 20 to move along the Y-axis direction. The X-axis mechanism 82 is disposed on the gantry 30, and an output end of the X-axis mechanism 82 is connected to 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 processing mechanism 40, and drives the spindle processing mechanism 40 to move up and down.
The upper end of the portal frame 30 is transversely provided with a first sliding rail 91 and a second sliding rail 92, and the mounting frame 41 is slidably arranged on the first sliding rail 91 and the second sliding rail 92 through sliding blocks. The first sliding rail 91 is disposed on the top surface of the portal frame 30, and two sliding grooves 901 on the first sliding rail 91 are arranged transversely. The second sliding rail 92 is disposed on the front side surface of the gantry 30, and two sliding grooves 901 on the second sliding rail 92 are vertically arranged.
The X-axis mechanism is covered with an organ type dust cover 100, and the organ type dust cover 100 passes through the mounting frame 41. The organ type dust cover 100 comprises a first guiding and sliding part 101 at the upper end of the organ type dust cover and a second guiding and sliding part 102 at the lower end of the organ type dust cover, wherein the first guiding and sliding part 101 is slidably mounted in the sliding groove 901 on the rear side surface of the first sliding rail 91. The second guiding part 102 is slidably mounted in the sliding groove 901 on the bottom surface of the second sliding rail 92. Through first guide portion 101 with correspond one of them on the slider sharing first slide rail 91 the spout 901, second guide portion 102 with correspond one of them on the slider sharing second slide rail 92 the spout 901 to need not to add the track for organ type dust cover 100 alone on the portal frame, make the structure simplified, and reduced manufacturing cost, leave a lot of spaces and install other parts.
Optionally, the top surface area of the dust cap 100 is much smaller than the front side surface area of the dust cap 100, effectively reducing dust from falling onto the outer surface of the dust cap 100.
The X-axis mechanism 82 includes an X-axis sliding seat 821, and an avoidance space 801 is formed on a front side surface of the X-axis sliding seat 821. The Z-axis machine 83 includes a Z-axis motor 831 disposed on the X-axis carriage 821 and above the avoidance 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 avoidance 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 positioned in the avoidance space 801, the nut member 44 is in threaded connection with the screw rod 832, and the Z-axis motor 831 drives the spindle processing mechanism 40 to move up and down;
the roller mechanisms 110 are disposed on two side surfaces of the first mounting block 43, 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 of first installation piece 43, when first installation piece 43 reciprocates, gyro wheel mechanism's output rolls along corresponding guide rolling surface 802 to effectively disperse the atress on nut spare and the first installation piece, make spindle processing module reciprocate more steadily smooth and easy, and gyro wheel mechanism ingenious use dodges the guide rolling surface in space, need not to increase the guide rail part outward, simple structure, and practical.
The roller mechanism 110 includes a second mounting block 111 and a roller 112, the second mounting block 111 being provided on a side surface of the first mounting block 43. The side of the second mounting block 111 facing 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 a bearing, and the number of bearings is 3, and 3 of the bearings are arranged side by side. Compared with a plastic roller, the bearing can bear larger force, has longer service life and rolls smoothly.
The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.
Claims (10)
1. Gantry machining center that can automatic press sword shockproof, characterized in that includes: the base is provided with a processing table and a portal frame; the portal frame is positioned beside the processing table; the side of the portal frame is arranged on the tool magazine; the portal frame is provided with a main shaft processing mechanism which moves up and down above the processing table; the main shaft processing mechanism comprises a mounting frame and a main shaft, wherein the mounting frame is arranged on the portal frame, the main shaft is arranged on the mounting frame, and a cutter mounting cavity is concavely formed in the bottom surface of the main shaft;
the automatic tool pressing mechanism is arranged at the output end of the main shaft processing mechanism and comprises a driving structure, an annular piece, a pushing piece, an elastic piece, a pressing ball and a pressing block; the driving structure is arranged at the lower end of the mounting frame and is positioned beside the main shaft;
the annular piece comprises an annular main body, a first connecting rod and a first pushing block, wherein the outer surface of the annular main body is provided with a connecting part, and the connecting part 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 pushing block is connected to the other end of the first connecting rod; an annular mounting groove is concavely formed in the lower end surface 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 pushing 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, facing the cutter mounting cavity, of the annular mounting groove; 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 propped against the inner wall of the first channel, and the other end of the elastic piece is propped against the side wall of the second pushing block, which is close to the first channel;
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 second pushing block, and the first pushing block contacts with the second pushing block and pushes the second pushing block and the pushing 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 changed, 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 is restored under the action of the elastic force of the elastic piece, one end of the pushing 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 from the tool mounting cavity, one end of the pressing block is stressed, so that the pressing block is enabled to slide into the first channel.
2. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 1, wherein: the first pushing block is provided with a first inclined plane, the second pushing block is correspondingly provided with a second inclined plane, and when the driving structure drives the annular main body to rotate towards the second pushing block, the first inclined plane is contacted with the second inclined plane so as to push the second pushing block to move towards the ball pressing direction.
3. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 1, wherein: the annular main body comprises two semicircular rings, two ends of the 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.
4. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 3, wherein: 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 one semicircular ring is a tooth part, and the gear is meshed with the tooth part.
5. A gantry machining center capable of automatically pressing a knife to resist vibration according to claim 1 or 3, wherein: the bottom surface of annular main part protruding is equipped with annular guide rail, the bottom surface of annular mounting groove is concave to be equipped with annular guide slot, annular guide rail rotationally locates in the annular guide slot.
6. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 1, wherein: the tool mounting device comprises a main shaft, a tool mounting cavity, a tool pressing mechanism, a manual tool pressing mechanism and a tool pressing mechanism, wherein the tool pressing mechanism is a screw, a second channel is concavely arranged on the bottom surface of the main shaft, the second channel is positioned 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 tip part; when the automatic knife pressing mechanism works, the tip 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 pressing ball to move towards the cutter, and the pressing ball drives the pressing block to move towards the cutter, so that the pressing block presses the cutter.
7. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 1, wherein: the device also comprises a Y-axis mechanism, an X-axis mechanism and a Z-axis mechanism; the Y-axis mechanism is arranged on the base, the processing table is connected with the output end of the Y-axis mechanism, and the Y-axis mechanism drives the processing 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; the output end of the Z-axis mechanism is connected with the main shaft processing mechanism and drives the main shaft processing mechanism to move up and down.
8. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 7, wherein: the upper end of the portal frame is transversely provided with a first sliding rail and a second sliding rail, and the mounting frame is slidably arranged on the first sliding rail and the second sliding rail through sliding blocks; the first sliding rail is arranged on the top surface of the portal frame, and two sliding grooves on the first sliding rail are transversely distributed; the second sliding rail is arranged on the front side surface of the portal frame, and two sliding grooves on the second sliding rail are vertically arranged;
the X-axis mechanism is covered with an organ type dust cover, and the organ type dust cover passes through the mounting frame correspondingly; 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 sliding guide part is slidably arranged in the sliding groove on the bottom surface of the second sliding rail.
9. The gantry machining center capable of automatically pressing a knife to resist vibration according to 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; the output shaft of the Z-axis motor is connected with a screw rod, and the screw rod extends into the avoidance space; the rear side surface of the mounting frame is provided with a first mounting block, the first mounting block is provided with a nut piece, the first mounting block and the nut piece are positioned in the avoidance space, the nut piece is in threaded connection with the screw rod, and the Z-axis motor drives the spindle processing mechanism to move up and down;
the two sides of the first installation block are respectively provided with a roller mechanism, the two sides of the avoidance space are guide rolling surfaces, and when the roller mechanisms move up and down along with the first installation block, the output ends of the roller mechanisms roll along the corresponding guide rolling surfaces.
10. The gantry machining center capable of automatically pressing a knife to resist vibration according to claim 9, wherein: 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 surface of the second installation block, which is away from the first installation block, is provided with an installation cavity, and the roller is rotatably arranged in the installation cavity and is exposed out of the installation cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210740230.6A CN115179080B (en) | 2022-06-28 | 2022-06-28 | Gantry machining center capable of automatically pressing knife to prevent vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210740230.6A CN115179080B (en) | 2022-06-28 | 2022-06-28 | Gantry machining center capable of automatically pressing knife to prevent vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115179080A CN115179080A (en) | 2022-10-14 |
| CN115179080B true CN115179080B (en) | 2023-08-01 |
Family
ID=83515154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210740230.6A Active CN115179080B (en) | 2022-06-28 | 2022-06-28 | Gantry machining center capable of automatically pressing knife to prevent vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115179080B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255189A (en) * | 2008-04-14 | 2009-11-05 | Sodick Co Ltd | Tool changing system of machining center |
| CN105881107A (en) * | 2016-06-15 | 2016-08-24 | 杭州大天数控机床有限公司 | Vertical-horizontal composite pentahedron gantry machining center |
| CN109482944A (en) * | 2018-11-30 | 2019-03-19 | 东莞市汇高工业机械有限公司 | Gantry mechanism precision machine tool |
| CN110315395A (en) * | 2019-07-23 | 2019-10-11 | 东莞市诚川数控机械科技有限公司 | Polyhedron all-in-one machine |
| CN111347257A (en) * | 2018-12-20 | 2020-06-30 | 科德数控股份有限公司 | Door type five-axis vertical machining center matched with vertical and horizontal 90-degree indexing workbench |
| CN113977297A (en) * | 2021-12-13 | 2022-01-28 | 佛山市长浦智能装备有限公司 | Gantry machining center |
-
2022
- 2022-06-28 CN CN202210740230.6A patent/CN115179080B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009255189A (en) * | 2008-04-14 | 2009-11-05 | Sodick Co Ltd | Tool changing system of machining center |
| CN105881107A (en) * | 2016-06-15 | 2016-08-24 | 杭州大天数控机床有限公司 | Vertical-horizontal composite pentahedron gantry machining center |
| CN109482944A (en) * | 2018-11-30 | 2019-03-19 | 东莞市汇高工业机械有限公司 | Gantry mechanism precision machine tool |
| CN111347257A (en) * | 2018-12-20 | 2020-06-30 | 科德数控股份有限公司 | Door type five-axis vertical machining center matched with vertical and horizontal 90-degree indexing workbench |
| CN110315395A (en) * | 2019-07-23 | 2019-10-11 | 东莞市诚川数控机械科技有限公司 | Polyhedron all-in-one machine |
| CN113977297A (en) * | 2021-12-13 | 2022-01-28 | 佛山市长浦智能装备有限公司 | Gantry machining center |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115179080A (en) | 2022-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1762332B1 (en) | Machine tool | |
| CN105436581A (en) | Denture engraving and milling machine with eccentric locking mechanism and rotary tool magazine | |
| CN203695978U (en) | Lathe with power failure preventing function | |
| CN115179080B (en) | Gantry machining center capable of automatically pressing knife to prevent vibration | |
| EP1413388A1 (en) | Machine tool with hydrostatic slideways with variable pressure | |
| JP5361563B2 (en) | lathe | |
| CN204976010U (en) | Level bed body numerical control turning center | |
| CN219026637U (en) | Machining center for smooth machining | |
| CN112276596A (en) | Multi-track support door type machining tool | |
| CN113814422A (en) | Horizontal lathe spherical surface machining device and spherical surface turning method thereof | |
| CN219254743U (en) | Multifunctional numerical control machine tool | |
| CN220312439U (en) | Double-spindle double-tool tower turning and milling composite machine tool | |
| CN220092763U (en) | Self-indexing rotary die for numerical control servo turret punch press | |
| CN215544973U (en) | High-precision tailstock structure of numerical control lathe | |
| CN209175415U (en) | A kind of double-station numerical control lathe | |
| CN210758245U (en) | Electric wood milling machine | |
| CN220718653U (en) | Dustproof protection mechanism of full-wrapping type charging tray linear transmission assembly | |
| CN220636930U (en) | Multifunctional turning and milling compound machine with numerical control cam combined | |
| CN217666436U (en) | Tool for turning spherical surface of horizontal lathe | |
| CN214979521U (en) | High-precision tool bit | |
| CN220515513U (en) | Double-end vertical machining device for metal parts | |
| CN114700759B (en) | Special processing equipment for inner cavity of cylindrical part | |
| CN218926265U (en) | Anti-shake precise rotary tool rest for numerical control machine tool | |
| CN217607182U (en) | Composite processing device for connector plug | |
| CN215279916U (en) | Novel special tool rest device for roll lathe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |