CN116728111A - Moving mechanism for ultra-long machining center - Google Patents

Moving mechanism for ultra-long machining center Download PDF

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Publication number
CN116728111A
CN116728111A CN202310839913.1A CN202310839913A CN116728111A CN 116728111 A CN116728111 A CN 116728111A CN 202310839913 A CN202310839913 A CN 202310839913A CN 116728111 A CN116728111 A CN 116728111A
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CN
China
Prior art keywords
screw rod
nut
platform
ultra
seat
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.)
Pending
Application number
CN202310839913.1A
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Chinese (zh)
Inventor
赵小雨
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Guangdong Demas Intelligent Equipment Co ltd
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Guangdong Demas Intelligent Equipment Co ltd
Priority date (The priority date 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 date listed.)
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Application filed by Guangdong Demas Intelligent Equipment Co ltd filed Critical Guangdong Demas Intelligent Equipment Co ltd
Priority to CN202310839913.1A priority Critical patent/CN116728111A/en
Publication of CN116728111A publication Critical patent/CN116728111A/en
Pending legal-status Critical Current

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    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The application discloses a moving mechanism for an ultra-long machining center, wherein the top of a base is provided with an installation platform; the first sliding rail set is fixedly arranged on the mounting platform; the mobile processing platform is in sliding connection with the first sliding rail set; the screw rod is fixedly arranged on the mounting platform; the driving nut mechanism is arranged on the movable processing platform and is in threaded fit with the screw rod, and the driving nut mechanism actively rotates to drive the movable platform to move relative to the screw rod; the second sliding rail is arranged on the mounting platform; the screw rod bearing mechanism is slidably arranged on the second sliding rail, rollers are respectively arranged at two ends of the screw rod bearing mechanism, and the rollers are supported at the bottom of the screw rod; push rods are respectively arranged at the two ends of the top of the screw rod supporting mechanism; the movable processing platform can push the push rod when moving so as to push the screw rod bearing mechanism to move along the second slide rail. The application has the function of supporting the middle part of the screw rod through the screw rod supporting mechanism, and can avoid the problem that the screw rod is bent due to dead weight.

Description

Moving mechanism for ultra-long machining center
Technical Field
The application relates to the technical field of machining equipment, in particular to a moving mechanism for an ultra-long machining center.
Background
For a workpiece with a length of more than 5 meters, a common machine tool cannot clamp the workpiece due to insufficient length, so that an ultra-long machining center (a machine tool with a length of more than 5 meters) is generally required to machine the ultra-long workpiece, a spindle of the machine tool is required to machine each part of the workpiece through movement, at present, a spindle nut mechanism is mainly adopted for driving the spindle, and the spindle nut mechanism has high driving efficiency and stable performance, so that the spindle nut mechanism is widely applied to a movable travelling mechanism of the machine tool, but when the length of a screw rod exceeds 5 meters, the screw rod is naturally bent under the influence of dead weight due to the fact that the screw rod is supported at two ends in the long-term use process, and further the machining precision of the machine tool is gradually reduced and even the normal operation of the machine tool is influenced, so that a moving mechanism capable of slowing down the bending of the screw rod of the ultra-long machining center is needed in the market.
Disclosure of Invention
The application aims to provide a moving mechanism for an ultra-long machining center, which can push a screw rod bearing mechanism to move when a movable machining platform moves by adopting the movable screw rod bearing mechanism so as to solve the problem that a screw rod of the ultra-long machining center is easy to bend due to the lack of a support in the middle part.
To achieve the purpose, the application adopts the following technical scheme:
a movement mechanism for an ultra-long machining center, comprising:
the base is provided with an installation platform at the top;
the first sliding rail set is fixedly arranged on the mounting platform;
the mobile processing platform is in sliding connection with the first sliding rail set;
the screw rod is fixedly arranged on the mounting platform;
the driving nut mechanism is arranged on the movable processing platform and is in threaded fit with the screw rod, and the driving nut mechanism actively rotates to drive the movable platform to move relative to the screw rod;
the second sliding rail is arranged on the mounting platform;
the screw rod bearing mechanism is slidably arranged on the second sliding rail, rollers are respectively arranged at two ends of the screw rod bearing mechanism, and the rollers are supported at the bottom of the screw rod; push rods are respectively arranged at the two ends of the top of the screw rod supporting mechanism; and the movable processing platform can push the push rod when moving so as to push the screw rod bearing mechanism to move along the second sliding rail.
Preferably, the screw rod bearing mechanism further comprises a connecting rod and bearing seats arranged at two ends of the connecting rod, and the rollers are respectively and rotatably connected with the bearing seats; the bottom of the supporting seat is in sliding connection with the second sliding rail; the push rod and/or the mobile processing platform is/are provided with a buffer block.
Preferably, the supporting seat comprises a sliding block and seat body components symmetrically arranged on two sides of the sliding block;
the sliding block is slidably arranged on the second sliding rail;
the seat body assembly comprises a mounting seat and a height adjusting block which is detachably arranged on the mounting seat;
the top of the mounting seat is provided with a groove, one side of the groove is an inclined plane, the other side of the groove is provided with a threaded adjusting hole which penetrates through the groove, and an adjusting screw is arranged in the threaded adjusting hole;
the height adjusting block comprises an adjusting part, a lug is arranged on the bottom surface of the adjusting part, and a slope matched with the inclined surface of the groove is arranged on one side of the lug;
the roller is rotatably connected with the height adjusting block.
Preferably, the height adjusting block further comprises a connecting part, and the connecting part is arranged at one side of the adjusting part;
the supporting seat further comprises a connecting cross rod, one end of the connecting cross rod is connected with the connecting part, and the other end of the connecting cross rod is connected with the connecting rod; the push rod set up in connect the horizontal pole keep away from the top of the one end of connecting portion.
Preferably, the driving nut mechanism comprises a motor, a connecting seat and a nut component, wherein the motor and the connecting seat are fixedly arranged on the mobile processing platform, the connecting seat is of a cylindrical structure, and the nut component is rotationally connected to the inside of the connecting seat; the nut component is sleeved outside the screw rod and is in threaded connection with the screw rod; the motor is in transmission connection with the nut component.
Preferably, the nut assembly comprises a sleeve, a nut and a bearing, wherein the sleeve and the nut are sleeved outside the screw rod, and the nut is fixedly connected with one end of the sleeve; the nut is in threaded connection with the screw rod, and the inner wall of the sleeve is suspended on the outer wall of the screw rod; the bearing is arranged between the sleeve and the connecting seat; the motor is in transmission connection with the other end of the sleeve.
Preferably, the motor is connected with the sleeve through a synchronous belt or a gear transmission.
Preferably, the number of the connecting rods is two, and the connecting rods are symmetrically arranged on two sides of the supporting seat.
Preferably, the middle part of the mounting platform is recessed to form a mounting groove, the mounting groove extends along the length direction of the base, and the second sliding rail is arranged in the mounting groove.
Preferably, the ratio of the distance between the two rollers of the screw rod bearing mechanism to the length of the screw rod is 1:3-2:3.
The beneficial effects of one of the embodiments of the application are as follows: through setting up lead screw bearing mechanism in order to play the supporting role to the middle part of lead screw, wherein lead screw bearing mechanism passes through second slide rail slidable mounting in mounting platform, that is to say, lead screw bearing mechanism can be on mounting platform along second slide rail reciprocating motion, lead screw bearing mechanism is through setting up the gyro wheel respectively at both ends, support the lead screw through the gyro wheel, because the lead screw is fixed the setting, consequently when the removal of drive mobile processing platform removes, the lead screw can not take place rotatoryly, consequently the lead screw can not take place sliding friction with the gyro wheel owing to self rotation, both reducible gyro wheel's wearing and tearing, still reduced the loss of power.
Drawings
The present application is further illustrated by the accompanying drawings, which are not to be construed as limiting the application in any way.
FIG. 1 is a schematic perspective view of one embodiment of the present application;
FIG. 2 is a schematic partial structure of the portion A in FIG. 1;
FIG. 3 is a schematic view of the partial structure of portion B in FIG. 1;
FIG. 4 is a schematic view of the drive nut mechanism and lead screw support mechanism of one embodiment of the present application;
FIG. 5 is a schematic view of an exploded construction of a bearing housing of one embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of a drive nut mechanism of one embodiment of the application;
in the accompanying drawings: 1-base, 11-mounting platform, 111-mounting groove, 2-first slide rail group, 3-mobile processing platform, 4-lead screw, 5-drive nut mechanism, 51-motor, 52-connecting seat, 53-nut assembly, 531-sleeve, 532-nut, 533-bearing, 6-second slide rail, 7-lead screw bearing mechanism, 71-roller, 72-push rod, 73-connecting rod, 74-bearing seat, 75-slider, 76-seat assembly, 761-mounting seat, 7611-groove, 7612-screw adjustment hole, 762-height adjustment block, 7621-adjustment part, 7622-connection part, 7623-bump, 7624-slope, 77-connection cross bar, 8-buffer block.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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 of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The technical scheme of the application is further described below by the specific embodiments with reference to the accompanying drawings.
A moving mechanism for an ultra-long machining center of this embodiment, as shown in fig. 1 to 6, includes:
the base 1, the top of the base 1 is provided with a mounting platform 11;
the first sliding rail set 2 is fixedly arranged on the mounting platform 11;
the mobile processing platform 3 is connected with the first sliding rail set 2 in a sliding way;
the screw rod 4 is fixedly arranged on the mounting platform 11;
the driving nut mechanism 5 is installed on the movable processing platform 3, the driving nut mechanism 5 is in threaded fit with the screw rod 4, and the driving nut mechanism 5 is actively rotated to drive the movable platform to move relative to the screw rod 4;
a second slide rail 6, wherein the second slide rail 6 is mounted on the mounting platform 11;
the screw rod supporting mechanism 7 is slidably mounted on the second sliding rail 6, rollers 71 are respectively arranged at two ends of the screw rod supporting mechanism 7, and the rollers 71 are supported at the bottom of the screw rod 4; push rods 72 are respectively arranged at the two ends of the top of the screw rod supporting mechanism 7; when the movable processing platform 3 moves, the push rod 72 can be pushed to push the screw rod bearing mechanism 7 to move along the second sliding rail 6.
The movable processing platform 3 is slidably mounted on the mounting platform 11 at the top of the base 1 through the first sliding rail set 2, the movable processing platform 3 is used for carrying a processing main shaft, the movable processing platform 3 can drive the main shaft to a position where a workpiece needs to be processed by reciprocating along the first sliding rail set 2, specifically, in order to enable the movable processing platform 3 to move more smoothly, the first sliding rail set 2 is provided with at least two parallel sliding rails, and the extending direction of the first sliding rail set 2 is the same as the length direction of the base 1, so that the movable processing platform 3 can reciprocate along the length direction of the base 1, and the main shaft carried on the movable processing platform 3 can be driven to any position in the length direction of the base 1, thereby realizing processing of an ultra-long workpiece; in order to provide a driving force for the movable processing platform 3 for reciprocating movement, the application adopts a driving mode of a screw-nut, unlike the traditional screw-nut mechanism, the application adopts a screw-nut 4 to be fixedly arranged, and provides the driving force for the movable processing platform 3 by a mode of rotating the driving-nut mechanism 5, specifically, the screw-nut 4 is fixedly arranged on the mounting platform 11, the extending direction of the screw-nut 4 is the same as the extending direction of the first sliding rail set 2, the driving-nut mechanism 5 is arranged on the movable processing platform 3, the driving-nut mechanism 5 is in threaded connection with the screw-nut 4, the driving-nut mechanism 5 can actively rotate, and the driving-nut mechanism 5 realizes the effect of reciprocating movement along the extending direction of the screw-nut 4 through forward rotation and reverse rotation, thereby providing the driving force for the movable processing platform 3 for reciprocating movement along the first sliding rail set 2. In order to enable the movable processing platform 3 to move to any position in the length direction of the base 1, the driving nut mechanism 5 needs to be capable of moving to any position of the screw rod 4, so that the middle part of the screw rod 4 cannot have any fixed supporting point, otherwise, the driving nut mechanism 5 is blocked when moving along the screw rod 4, however, if only two ends of the screw rod 4 are supported, for an ultra-long processing platform exceeding 5 meters, the screw rod 4 can bend slowly under the influence of self weight along with the passage of time; in order to solve the problem, the application innovatively provides the screw rod supporting mechanism 7, specifically, the screw rod supporting mechanism 7 is slidably mounted on the mounting platform 11 through the second sliding rail 6, that is, the screw rod supporting mechanism 7 can reciprocate on the mounting platform 11 along the second sliding rail 6, the screw rod supporting mechanism 7 is provided with the rollers 71 at two ends respectively, and the screw rod 4 is supported through the rollers 71, and it is pointed out that the screw rod 4 is fixedly provided, so that the screw rod 4 does not rotate when the moving processing platform 3 is driven to move, and the screw rod 4 does not slide with the rollers 71 due to rotation of the screw rod 4, so that the abrasion of the rollers 71 can be reduced, and the power loss is reduced; in actual use, the moving processing platform 3 is disposed between the two rollers 71 of the screw rod supporting mechanism 7, when the moving processing platform 3 moves along the screw rod 4 to one direction, the moving processing platform 3 gradually approaches the push rod 72 of the screw rod supporting mechanism 7 at the side until the moving processing platform 3 contacts with the push rod 72, and at this moment, the moving processing platform 3 provides thrust for the push rod 72, so that the screw rod supporting mechanism 7 moves along the second slide rail 6 under the thrust of the moving processing platform 3; it should be noted that, when the moving processing platform 3 pushes the screw rod supporting mechanism 7 to any end of the screw rod 4, since the screw rod supporting mechanism 7 has a certain length, one end of the screw rod supporting mechanism 7 is always located near the middle of the screw rod 4, so as to provide support for the middle of the screw rod 4; however, when the movable processing platform 3 and the screw rod bearing mechanism 7 are both positioned near the middle part of the screw rod 4, the rollers 71 at the two ends of the screw rod bearing mechanism 7 provide support for the screw rod 4, so that no matter when the screw rod bearing mechanism 7 moves to any position of the screw rod 4, the screw rod bearing mechanism 7 can provide support for the middle part of the screw rod 4, so that the screw rod 4 is not easy to bend downwards under the influence of dead weight; moreover, since the screw rod bearing mechanism 7 is mounted on the base 1 through the second sliding rail 6 and the rollers 71 are in rolling contact with the screw rod 4, the screw rod bearing mechanism 7 can easily slide on the second sliding rail 6, and the screw rod bearing mechanism 7 can be pushed to move only by applying small pushing force to the push rod 72 in the moving process of the moving processing platform 3, so that the moving processing platform 3 does not need to consume too much kinetic energy when pushing the screw rod 4 to bear, and the loss of power is reduced; it should be noted that, since the spindle is generally uniform during the processing, the screw rod supporting mechanism 7 of the present application can also reduce the problem of the moving processing platform 3 being blocked due to pushing the screw rod supporting mechanism 7.
As shown in fig. 2-5, the screw rod supporting mechanism 7 further includes a connecting rod 73 and supporting seats 74 disposed at two ends of the connecting rod 73, and the rollers 71 are respectively rotatably connected to the supporting seats 74; the bottom of the supporting seat 74 is in sliding connection with the second sliding rail 6; the push rod 72 and/or the mobile processing platform 3 are provided with a buffer block 8.
The supporting seats 74 at the two ends are connected through the connecting rod 73, so that the two supporting seats can be connected to realize simultaneous actions, and the connecting rod 73 can enable the screw rod supporting mechanism 7 to be lighter due to the simple structure; the roller 71 is rotatably connected to the supporting seat 74, the supporting seat 74 is utilized to provide supporting force for the roller 71, meanwhile, the roller 71 can rotate relative to the supporting seat 74, when the supporting seat 74 moves, the roller 71 rotates relative to the supporting seat 74, and meanwhile, the roller 71 rolls along the bottom of the screw rod 4, so that the roller 71 can always provide supporting force for the screw rod 4, and in particular, the roller 71 can be connected to the bearing 533 through the ball bearing 533, so that resistance and abrasion caused by the rotation of the roller 71 relative to the bearing 533 are reduced.
In the process that the movable processing platform 3 moves along the screw rod 4 and gradually approaches and pushes the push rod 72, at the moment that the movable processing platform 3 contacts the push rod 72, due to the interaction of forces, the movable processing platform 3 and the push rod 72 can both receive impact force, in order to alleviate such impact force, a buffer block 8 can be arranged at the push rod 72 and/or the movable processing platform 3, the buffer block 8 is arranged at the contact position of the movable processing platform 3 and the push rod 72, and the buffer block 8 is formed by elastic elements, such as rubber, springs and the like, can absorb the impact force through self deformation and recover to absorb the next impact under the action of elasticity.
Further, the supporting seat 74 includes a sliding block 75 and seat body assemblies 76 symmetrically disposed at two sides of the sliding block 75;
the sliding block 75 is slidably mounted on the second sliding rail 6;
the base assembly 76 includes a mounting base 761 and a height adjustment block 762 detachably mounted to the mounting base 761;
the top of the mounting seat 761 is provided with a groove 7611, one side of the groove 7611 is an inclined plane, the other side of the groove 7611 is provided with a threaded adjusting hole 7612 which penetrates through, and an adjusting screw is arranged in the threaded adjusting hole 7612;
the height adjusting block 762 comprises an adjusting part 7621, wherein a bump 7623 is arranged on the bottom surface of the adjusting part 7621, and a slope 7624 matched with the slope of the groove 7611 is arranged on one side of the bump 7623;
the roller 71 is rotatably coupled to the height adjustment block 762.
The sliding block 75 is located at the bottom of the supporting seat 74 and is used for being slidably connected with the second sliding rail 6 and carrying the seat body assembly 76; the mounting seat 761 and the height adjusting block 762 in the seat body assembly 76 are detachably connected, the height of the height adjusting block 762 relative to the mounting seat 761 is adjustable, specifically, the top of the height adjusting block 762 is provided with a through runway-shaped long hole, the top surface of the mounting seat 761 is provided with a threaded hole, the runway-shaped long hole is connected with the threaded hole through a screw, and therefore the position of the height adjusting block 762 relative to the mounting seat 761 can be adjusted back and forth along the direction of the runway-shaped long hole; one of the side walls of the groove 7611 at the top of the mounting seat 761 is inclined, and the projection 7623 of the height adjustment block 762 is provided with a slope 7624, it should be noted that the extending direction of the racetrack slot is directed to the inclined surface of the groove 7611, so that the threaded hole can be aligned with the racetrack slot when the slope 7624 of the height adjustment block 762 slides along the inclined surface of the groove 7611; when the height of the height adjusting block 762 needs to be adjusted, the screw in the threaded hole is loosened firstly, so that the height adjusting block 762 and the mounting seat 761 are changed from the locking state to the loosening state, at this time, the adjusting screw is rotated, because the threaded adjusting hole 7612 is penetrated through the side wall of the groove 7611, the adjusting screw can penetrate through the threaded adjusting hole 7612 and extend into the groove 7611, the length of the adjusting screw extending into the groove 7611 can be adjusted to push the protruding block 7623 to move along the inclined plane of the groove 7611, when the length of the adjusting screw extending into the groove 7611 is longer, the moving distance of the protruding block 7623 along the inclined plane of the groove 7611 is larger, and therefore the height of the height adjusting block 762 relative to the mounting seat 761 is higher, and conversely, the height of the height adjusting block 762 relative to the mounting seat 761 is lower; after the height of the height adjusting block 762 is adjusted, only the screw in the runway-shaped long hole is required to be locked, the height adjusting block 762 and the mounting seat 761 are changed from the loosening state to the locking state, and the height adjusting block 762 and the mounting seat 761 are kept relatively fixed; the roller 71 is mounted on the height adjusting block 762, so that the roller 71 can adjust the height of the roller 71 up and down along with the height adjusting block 762 to adapt to different working conditions, for example, in a device debugging stage, because machining errors are inevitably generated in the production and machining processes of all parts, when the device is assembled, the roller 71 cannot be guaranteed to be supported at the bottom of the screw rod 4, the roller 71 may be higher or lower, and at the moment, the height of the roller 71 needs to be adjusted by adjusting the height adjusting block 762, so that the roller 71 can be abutted against the bottom of the screw rod 4; of course, during long-term use
In some embodiments, the height adjustment block 762 further includes a connection portion 7622, the connection portion 7622 being disposed on one side of the adjustment portion 7621;
the supporting seat 74 further comprises a connecting cross rod 77, one end of the connecting cross rod 77 is connected with the connecting part 7622, and the other end is connected with the connecting rod 73; the push rod 72 is disposed on top of an end of the connecting rail 77 remote from the connecting portion 7622.
The width of the screw rod supporting mechanism 7 can be increased by arranging the cross bar, and the push rods 72 are arranged at one end of the cross bar far away from the connecting part 7622, so that the two push rods 72 arranged on the same supporting seat 74 can have larger distance, and as can be appreciated, the distance between the two push rods 72 and the movable processing platform 3 should be equal under ideal conditions, so that the movable processing platform 3 can simultaneously contact the two push rods 72 and exert the same thrust force on the two push rods 72, but due to the existence of processing errors and assembly errors, the distance between the two push rods 72 and the movable processing platform 3 cannot be the same under actual conditions, and in order to reduce the influence caused by the errors as much as possible, the distance between the two push rods 72 is increased by arranging the cross bar, so that when the movable processing platform 74 pushes the push rods 72, the two push rods 72 can provide closer thrust force for the supporting seat 74, thereby the comprehensive stress direction of the supporting seat 74 is closer to the extending direction of the second slide rail 6, and the abrasion of the slide rail 6 caused by the deviation of the second slide rail and the speed 75 due to the comprehensive stress direction and the movement direction of the screw rod supporting mechanism 7 when pushed by the movable processing platform 3 is reduced.
Further, as shown in fig. 4 and 6, the driving nut mechanism 5 includes a motor 51, a connection seat 52, and a nut assembly 53, where the motor 51 and the connection seat 52 are fixedly disposed on the mobile processing platform 3, the connection seat 52 is in a cylindrical structure, and the nut assembly 53 is rotatably connected to the inside of the connection seat 52; the nut component 53 is sleeved outside the screw rod 4 and is in threaded connection with the screw rod; the motor 51 is in driving connection with the nut assembly 53.
Since the screw rod 4 is fixedly arranged, in order to drive the movable processing platform 3 to move along the screw rod 4, the driving nut mechanism 5 needs to obtain driving force through active rotation; specifically, the motor 51 is a power source, and the motor 51 obtains rotational power by turning on a power source; the connecting seat 52 is used as a medium for connecting the nut component 53 with the mobile processing platform 3, so that the nut component 53 can not only freely rotate, but also can be connected with the mobile processing platform 3 to provide thrust for the mobile processing platform 3; in actual operation, the motor 51 drives the nut assembly 53 to rotate, and since the nut assembly 53 is in threaded connection with the screw rod 4, the nut assembly 53 must move relative to the screw rod 4 in the process of rotating the nut assembly 53 (including forward rotation and reverse rotation), and the nut assembly 53 pushes the mobile processing platform 3 to reciprocate along the screw rod 4 through the connecting seat 52.
Specifically, the nut assembly 53 includes a sleeve 531, a nut 532, and a bearing 533, where the sleeve 531 and the nut 532 are both sleeved outside the screw rod 4, and the nut 532 is fixedly connected to one end of the sleeve 531; the nut 532 is in threaded connection with the screw rod 4, and the inner wall of the sleeve 531 is suspended on the outer wall of the screw rod 4; the bearing 533 is disposed between the sleeve 531 and the connection base 52; the motor 51 is in transmission connection with the other end of the sleeve 531.
Wherein the sleeve 531 functions to provide a mounting location and power transmission, in particular, since the sleeve 531 has a certain length, so that the bearing 533 can be mounted between the outer wall of the sleeve 531 and the inner wall of the connection block 52; the other end of the sleeve 531 is in transmission connection with the motor 51, and the power of the motor 51 is transmitted to the nut 532 through the sleeve 531, so that the nut 532 is driven to rotate; the inner wall of the sleeve 531 is not contacted with the screw rod 4, so that friction between the inner wall of the sleeve 531 and the screw rod 4 in the process of rotating the nut 532 is avoided.
As an alternative embodiment, the motor 51 is connected to the sleeve 531 by a synchronous belt or a gear drive.
Specifically, the number of the links 73 is two, and the links 73 are symmetrically disposed on both sides of the support 74.
When one end of the screw rod supporting mechanism 7 receives the pushing force of the moving processing platform 3, the supporting seat 74 on the side can transmit the pushing force to the supporting seat 74 on the other side through the two connecting rods 73, so that the supporting seat 74 on the other side is pulled to move, the two connecting rods 73 are symmetrically arranged on two sides of the supporting seat 74, so that when one supporting seat 74 on the other side is pulled, the supporting seat 74 on the other side can receive two almost parallel pulling forces, and the deviation of the comprehensive stress direction and the moving direction of the supporting seat 74 on the other side is smaller, so that the abrasion speed of the sliding block 75 and the second sliding rail 6 is reduced. Of course, since the link 73 is only subjected to a tensile force and not to a compressive force in the present application, the link 73 may be equivalently replaced with a flexible connection member such as a wire rope.
Further, the middle portion of the mounting platform 11 is recessed to form a mounting groove 111, the mounting groove 111 extends along the length direction of the base 1, and the second slide rail 6 is disposed in the mounting groove 111.
By providing the mounting groove 111, a mounting space can be made for the drive nut mechanism 5, the second slide rail 6 and the screw rod supporting mechanism 7, so that the overall structure is lighter and more compact, and the mounting groove 111 can also play a role in collection when lubrication medium (e.g., lubricating oil) on each component drops to the mounting groove 111 due to the downward depression of the mounting groove 111.
In order to achieve a better supporting effect, the ratio of the distance between the two rollers 71 of the screw rod bearing mechanism 7 to the length of the screw rod 4 is 1:3-2:3.
By the arrangement, the maximum distance between two adjacent supporting points of the screw rod 4 can not exceed the length of the screw rod 4Taking the length of the screw rod 4 as 6 meters and the length of the screw rod bearing mechanism 7 as 2 meters as an example, when the screw rod bearing mechanism 7 moves to the end of the screw rod 4, one end of the screw rod bearing mechanism 7 is close to one end of the screw rod 4 because of the certain volume of the roller 71, the other end of the screw rod bearing mechanism 7 is positioned in the middle of the screw rod 4, and at the moment, the maximum distance between two adjacent supporting points of the screw rod 4 is the distance from the roller 71 positioned at the other end of the screw rod bearing mechanism 7 to the other end of the screw rod 4, which is about 4 meters; when the screw rod bearing mechanism 7 is located at the middle point of the screw rod 4 (i.e. when the distances from the two rollers 71 to the middle point of the screw rod 4 are equal), the supporting points are uniformly distributed on the screw rod 4, and the distance between any two adjacent supporting points is 2 meters. When the distance between the two rollers 71 of the screw rod supporting mechanism 7 is too long or too short, the supporting effect of the screw rod supporting mechanism 7 on the screw rod 4 is affected.
In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The technical principle of the present application is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the application and should not be taken in any way as limiting the scope of the application. Other embodiments of the application will occur to those skilled in the art from consideration of this specification without the exercise of inventive faculty, and such equivalent modifications and alternatives are intended to be included within the scope of the application as defined in the claims.

Claims (10)

1. A movement mechanism for an ultra-long machining center, comprising:
the base is provided with an installation platform at the top;
the first sliding rail set is fixedly arranged on the mounting platform;
the mobile processing platform is in sliding connection with the first sliding rail set;
the screw rod is fixedly arranged on the mounting platform;
the driving nut mechanism is arranged on the movable processing platform and is in threaded fit with the screw rod, and the driving nut mechanism actively rotates to drive the movable platform to move relative to the screw rod;
the second sliding rail is arranged on the mounting platform;
the screw rod bearing mechanism is slidably arranged on the second sliding rail, rollers are respectively arranged at two ends of the screw rod bearing mechanism, and the rollers are supported at the bottom of the screw rod; push rods are respectively arranged at the two ends of the top of the screw rod supporting mechanism; and the movable processing platform can push the push rod when moving so as to push the screw rod bearing mechanism to move along the second sliding rail.
2. The moving mechanism for an ultra-long machining center according to claim 1, wherein the screw rod supporting mechanism further comprises a connecting rod and supporting seats arranged at two ends of the connecting rod, and the rollers are respectively and rotatably connected to the supporting seats; the bottom of the supporting seat is in sliding connection with the second sliding rail; the push rod and/or the mobile processing platform is/are provided with a buffer block.
3. The moving mechanism for an ultra-long machining center according to claim 2, wherein the support base comprises a slider and base components symmetrically arranged on both sides of the slider;
the sliding block is slidably arranged on the second sliding rail;
the seat body assembly comprises a mounting seat and a height adjusting block which is detachably arranged on the mounting seat;
the top of the mounting seat is provided with a groove, one side of the groove is an inclined plane, the other side of the groove is provided with a threaded adjusting hole which penetrates through the groove, and an adjusting screw is arranged in the threaded adjusting hole;
the height adjusting block comprises an adjusting part, a lug is arranged on the bottom surface of the adjusting part, and a slope matched with the inclined surface of the groove is arranged on one side of the lug;
the roller is rotatably connected with the height adjusting block.
4. A moving mechanism for an ultra-long machining center according to claim 3, wherein said height adjusting block further comprises a connecting portion provided at one side of said adjusting portion;
the supporting seat further comprises a connecting cross rod, one end of the connecting cross rod is connected with the connecting part, and the other end of the connecting cross rod is connected with the connecting rod; the push rod set up in connect the horizontal pole keep away from the top of the one end of connecting portion.
5. The moving mechanism for an ultra-long machining center according to claim 1, wherein the driving nut mechanism comprises a motor, a connecting seat and a nut assembly, the motor and the connecting seat are fixedly arranged on the moving machining platform, the connecting seat is of a cylindrical structure, and the nut assembly is rotatably connected to the inside of the connecting seat; the nut component is sleeved outside the screw rod and is in threaded connection with the screw rod; the motor is in transmission connection with the nut component.
6. The moving mechanism for an ultra-long machining center according to claim 5, wherein the nut assembly comprises a sleeve, a nut and a bearing, the sleeve and the nut are both sleeved outside the screw rod, and the nut is fixedly connected with one end of the sleeve; the nut is in threaded connection with the screw rod, and the inner wall of the sleeve is suspended on the outer wall of the screw rod; the bearing is arranged between the sleeve and the connecting seat; the motor is in transmission connection with the other end of the sleeve.
7. The moving mechanism for an ultra-long machining center according to claim 6, wherein the motor is connected with the sleeve through a timing belt or a gear transmission.
8. The moving mechanism for an ultra-long machining center according to claim 1, wherein the number of the connecting rods is two, and the connecting rods are symmetrically arranged on two sides of the supporting seat.
9. The moving mechanism for an ultra-long machining center according to claim 1, wherein the mounting platform is recessed in the middle to form a mounting groove extending in the longitudinal direction of the base, and the second slide rail is disposed in the mounting groove.
10. The moving mechanism for an ultra-long machining center according to claim 1, wherein a ratio of a distance between two rollers of the screw rod bearing mechanism to a length of the screw rod is 1:3-2:3.
CN202310839913.1A 2023-07-10 2023-07-10 Moving mechanism for ultra-long machining center Pending CN116728111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310839913.1A CN116728111A (en) 2023-07-10 2023-07-10 Moving mechanism for ultra-long machining center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310839913.1A CN116728111A (en) 2023-07-10 2023-07-10 Moving mechanism for ultra-long machining center

Publications (1)

Publication Number Publication Date
CN116728111A true CN116728111A (en) 2023-09-12

Family

ID=87913441

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310839913.1A Pending CN116728111A (en) 2023-07-10 2023-07-10 Moving mechanism for ultra-long machining center

Country Status (1)

Country Link
CN (1) CN116728111A (en)

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