CN114147513A - Machine tool station positioning system and station fixing method - Google Patents
Machine tool station positioning system and station fixing method Download PDFInfo
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- CN114147513A CN114147513A CN202111594893.3A CN202111594893A CN114147513A CN 114147513 A CN114147513 A CN 114147513A CN 202111594893 A CN202111594893 A CN 202111594893A CN 114147513 A CN114147513 A CN 114147513A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 claims abstract description 45
- 238000003825 pressing Methods 0.000 claims description 44
- 238000001514 detection method Methods 0.000 claims description 43
- 230000000712 assembly Effects 0.000 claims description 29
- 238000000429 assembly Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 6
- 230000017105 transposition Effects 0.000 abstract description 12
- 230000000903 blocking effect Effects 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
Abstract
The application relates to the technical field of station positioning, in particular to a machine tool station positioning system and a station fixing method. Further comprising the steps of: step one, a workpiece is arranged on a mobile station, and then the mobile station is moved to a processing workbench; and step two, synchronously driving the positioning pushing components with the same pushing direction to push the mobile station, so that the mobile station pushes each positioning stopper and keeps the positioning pushing components to tightly push the mobile station. The workpiece clamping positioning device has the advantages that workpieces can be conveniently positioned and locked on different machining stations synchronously, the same machining zero point is kept, and the workpiece transposition and clamping positioning efficiency is improved.
Description
Technical Field
The application relates to the technical field of station positioning, in particular to a machine tool station positioning system and a station fixing method.
Background
In the process of processing the workpiece, the workpiece is not always kept still, the workpiece needs to be changed from one process to another process, from one machine tool to another machine tool and the like, and the zero point of the workpiece needs to be detected and aligned again every time the workpiece is changed. After the zero point of the workpiece is set, the workpiece can be processed very conveniently without finding a relative reference for each size.
In the related art, in order to save the auxiliary time for re-aligning the zero point, ensure the continuity of workpiece processing and improve the working efficiency, the same zero point positioning system is often adopted on different stations. The zero positioning system comprises a plurality of locking modules which are pre-installed on the machining workbench, and in the transposition process of the workpiece, each locking module needs to be synchronously aligned and locked by the locking modules, so that the positioning and locking of the workpiece are synchronously completed in the clamping process.
However, when the size of the workpiece is large, the size of the used machining workbench needs to be matched with the size of the workpiece, meanwhile, the number of the locking modules required by the used zero positioning system needs to be increased correspondingly, when the workpiece is transposed every time, manual synchronous alignment of each locking module is difficult, and the clamping and positioning efficiency is low.
Disclosure of Invention
In order to facilitate rapid clamping, positioning and transposition of workpieces, the application provides a machine tool station positioning system and a station fixing method.
In a first aspect, the application provides a machine tool station positioning system, which adopts the following technical scheme:
a machine tool station positioning system comprises a mobile station for mounting a workpiece and positioning abutting-pushing components for mounting on a machining workbench, wherein the positioning abutting-pushing components are provided with at least two, the abutting-pushing directions of the at least two positioning abutting-pushing components are intersected, positioning blocking pieces are arranged on the machining workbench opposite to the abutting-pushing direction of the positioning abutting-pushing components, and the positioning abutting-pushing components abut against and push the mobile station to abut against the positioning blocking pieces and limit the mobile station to be separated from the machining workbench.
By adopting the technical scheme, an operator respectively installs the positioning pushing component and the positioning stopper with the same distribution structure on the processing working tables of different processing stations, a workpiece to be processed is installed on the mobile station and is placed on the corresponding processing working table, the positioning pushing component with the crossed pushing directions is sequentially driven to push the mobile station, so that the mobile station abuts against the corresponding positioning stopper, the horizontal position of the mobile station is positioned, meanwhile, the positioning pushing component synchronously positions the vertical position of the mobile station, the positioning and the locking of the workpiece on the mobile station are synchronously completed in the process of clamping on different stations, a plurality of locking modules do not need to be manually and synchronously aligned, and the efficiency of workpiece transposition and clamping positioning is improved.
Optionally, the positioning and pushing assembly includes a positioning and compressing cylinder installed on the machining workbench, a piston rod of the positioning and compressing cylinder is provided with a pushing block, the moving platform is provided with a bearing block, an inclined pushing surface is formed at one end of the pushing block facing the bearing block, and a bearing surface matched with the inclined pushing surface is formed on the bearing block;
when the inclined pushing surface pushes the bearing surface, the pushing block pushes the bearing block towards the corresponding positioning stopper and presses the bearing block downwards towards the machining workbench.
By adopting the technical scheme, after the mobile station is arranged on the processing workbench, the positioning pressing cylinder is started to drive the pushing block to push out towards the corresponding bearing block, and the inclined pushing surface pushes the bearing surface until the mobile station tightly pushes the positioning blocking piece, so that the longitudinal position of the mobile station is synchronously positioned while the horizontal position of the mobile station is positioned, the positioning and locking are synchronously completed in the workpiece transposition and clamping process, and the efficiency of transposition workpiece clamping and positioning is improved.
Optionally, a guide block is installed on the machining workbench, and a guide groove for slidably connecting the abutting block is formed in the guide block.
By adopting the technical scheme, when the positioning compression cylinder pushes the abutting block to abut against the abutting block, the abutting face forms reverse acting force against the inclined pushing face, the guide block and the guide groove of the guide block are beneficial to assisting in pressing the abutting block downwards when the guide abutting block moves to abut against the abutting block, and the structural stability of pressing the abutting block downwards by the abutting block is improved.
Optionally, a friction plate for attaching the abutting block is detachably arranged on the groove wall of the guide groove.
By adopting the technical scheme, the friction plate is beneficial to protecting the groove wall of the guide groove and is convenient to replace in time when the abrasion is too large so as to keep the guide function of the guide groove.
Optionally, a plurality of positioning stoppers are respectively distributed along two adjacent side edges of the processing workbench, a plurality of positioning pushing assemblies which push against the moving table towards the two adjacent side edges of the processing workbench are respectively arranged, the plurality of positioning pushing assemblies which push against the moving table in the same direction are sequentially distributed along one side edge of the processing workbench, and two adjacent positioning pushing assemblies in the same distribution direction are distributed along the other side edge of the processing workbench in a staggered manner.
By adopting the technical scheme, the positioning stoppers on the two adjacent side edges of the processing workbench are two horizontal reference surfaces of the mobile station, and the positioning abutting components in each abutting direction are sequentially distributed along one side edge of the processing workbench and are sequentially distributed along the other side edge of the processing workbench in a staggered manner, so that the force application ends of the abutting acting force are dispersed along the surface of the processing workbench, and the clamping and positioning effects on the mobile station are improved.
Optionally, a positioning pasting plate for pasting the positioning stopper is disposed on a side wall of the mobile station.
By adopting the technical scheme, the positioning flitch is convenient for operators to quickly and preliminarily align and position the stopper when the mobile station is arranged on the processing workbench, so that the efficiency of clamping and positioning the mobile station is improved.
In a second aspect, the method for fixing the station of the machine tool adopts the following technical scheme:
a machine tool station fixing method comprises the following steps:
step one, a workpiece is arranged on a mobile station, and then the mobile station is moved to a processing workbench;
and step two, synchronously driving the positioning pushing components with the same pushing direction to push the mobile station, so that the mobile station pushes each positioning stopper and keeps the positioning pushing components to tightly push the mobile station.
By adopting the technical scheme, the workpiece is arranged on the moving table, and the same positioning abutting-pushing component and the positioning stopper are matched, clamped and positioned on different processing working tables, so that the workpiece transposition, clamping and positioning efficiency is improved.
Optionally, the positioning pushing assemblies in the pushing directions are sequentially driven, after the positioning pushing assembly in the previous pushing direction pushes the mobile station to abut against the corresponding positioning stoppers, the abutting action of the positioning pushing assembly on the mobile station is released, then the positioning pushing assembly in the next pushing direction is driven to push the mobile station, and after the mobile station abuts against all the positioning stoppers, all the positioning pushing assemblies are synchronously driven to abut against the mobile station.
By adopting the technical scheme, the positioning pushing assemblies in each pushing direction sequentially push the mobile station and release the pushing action, so that the movement of the mobile station, which is interfered by the positioning pushing assemblies in each pushing direction, is favorably reduced.
Optionally, the device further comprises a detection table, wherein a plurality of positioning pushing assemblies and a plurality of positioning stoppers are arranged on the detection table, and the distribution structures of the plurality of positioning pushing assemblies and the plurality of positioning stoppers on the detection table are the same as those of the positioning pushing assemblies and the positioning stoppers on the processing workbench;
after the workpiece is installed on the mobile station, the mobile station is moved to the detection station, the mobile station is pushed by the positioning pushing assemblies to enable the mobile station to tightly abut against the corresponding positioning stoppers, and then the workpiece installation accuracy on the mobile station is detected by using the detection member;
and after the workpiece detection is finished, sequentially performing the first step and the second step.
By adopting the technical scheme, before the workpiece is machined, the movable table to be used is positioned on the detection table in advance through the plurality of positioning abutting-pushing assemblies and the positioning blocking pieces, then the workpiece is clamped and the mounting precision of the workpiece is detected, so that the workpiece on the movable table keeps the same machining zero point and mounting precision on subsequent different machining working tables.
Optionally, the number of the mobile stations is at least two, after one mobile station mounts the workpiece and is arranged on the detection table for detection, the mobile station moves to the processing workbench for positioning and subsequent processing, and then the other mobile station mounts the workpiece and is arranged on the detection table for detection.
By adopting the technical scheme, the at least two mobile stations are convenient for an operator to clamp a workpiece and correct zero point and installation precision in the process of processing the workpiece carried by the previous mobile station, and the workpiece clamping and processing efficiency is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
the positioning pushing components and the positioning stoppers with the same distribution structure are respectively arranged on the processing working tables at different processing stations, a workpiece is arranged on the movable table and is arranged on the corresponding processing working table, the positioning pushing components with the crossed pushing directions are sequentially driven to push the movable table, so that the movable table is tightly pressed against the corresponding positioning stoppers, the horizontal position of the movable table is positioned, meanwhile, the positioning pushing components synchronously position the vertical position of the movable table, the positioning and locking of the workpiece on the movable table are synchronously completed in the clamping process of the workpiece on different stations, a plurality of locking modules are not required to be manually and synchronously aligned, and the workpiece transposition and clamping positioning efficiency is improved;
the positioning stoppers on two adjacent sides of the machining workbench are two horizontal reference surfaces of the mobile station, and the positioning pushing assemblies in each pushing direction are sequentially distributed along one side edge of the machining workbench and are sequentially distributed along the other side edge of the machining workbench in a staggered manner, so that the force application ends of the pushing acting force are dispersed along the surface of the machining workbench, and the clamping and positioning effects on the mobile station are improved;
before the workpiece is machined, a moving table which needs to be used is positioned on a detection table in advance through a plurality of positioning pushing assemblies and positioning blocking pieces, then the workpiece is clamped and the mounting precision of the workpiece is detected, and the workpiece on the moving table keeps the same machining zero point and the same mounting precision on subsequent different machining working tables.
Drawings
Fig. 1 is a schematic structural diagram of a distribution structure of four positioning and pushing assemblies on a processing table and a corresponding mobile station in embodiment 1.
Fig. 2 is a sectional view for embodying the positioning hold-down cylinder, the abutting block, the guide block, the friction plate, and the positioning stopper in embodiment 1.
Fig. 3 is a schematic structural diagram for showing a distribution structure of the bottom surface supporting block and the supporting legs of the mobile station in embodiment 1.
Fig. 4 is a schematic structural diagram of a distribution structure of six positioning and pushing assemblies on a processing table and a corresponding mobile station in embodiment 2.
Fig. 5 is a schematic structural diagram for showing a distribution structure of the bottom surface supporting block and the supporting legs of the mobile station in embodiment 2.
Fig. 6 is a schematic structural diagram for embodying the detection structure of the mobile station and the detection station in embodiment 1.
Fig. 7 is a partial sectional view for embodying the positioning and locking of the mobile station on the detection station by the positioning and pushing assembly in embodiment 1.
Fig. 8 is a schematic structural diagram for embodying the detection structure of the mobile station and the detection station in embodiment 2.
Reference number description, 1, mobile station; 11. a bearing block; 111. a bearing surface; 12. positioning the flitch; 13. supporting legs; 14. a universal hoisting ring; 2. positioning the pushing component; 21. positioning a compaction cylinder; 22. mounting a plate; 23. pushing the block; 231. obliquely pushing the surface; 24. a guide block; 241. a guide groove; 242. a friction plate; 3. a machining workbench; 4. a positioning stopper; 5. a detection table; 51. a linear guide rail; 52. a column; 53. detecting a cross beam; 531. a slide rail; 54. a slide plate; 55. a dial indicator; 56. an anti-collision support; 57. polyurethane anticollision piece.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
The embodiment of the application discloses a machine tool station positioning system.
Example 1:
referring to fig. 1 and 2, a machine tool station positioning system includes a mobile station 1 and at least two positioning pushing assemblies 2, in this embodiment, four positioning pushing assemblies 2 are provided, and in other embodiments, other numbers of positioning pushing assemblies 2 may be provided. The positioning pushing components 2 are used for being mounted on processing workbenches 3 of various processing equipment, positioning stoppers 4 are mounted on two adjacent side edges of the top surface of the processing workbench 3, correspondingly, the pushing directions of two positioning pushing components 2 vertically face one side edge of the processing workbench 3, and the pushing directions of the other two positioning pushing components 2 vertically face the other adjacent side edge of the processing workbench 3.
An operator clamps a workpiece on the top surface of the mobile platform 1, then places the mobile platform 1 on the top surface of the processing workbench 3, and pushes the mobile platform 1 through the four positioning pushing components 2, so that the mobile platform 1 is tightly pushed against the positioning stoppers 4 on the two adjacent side edges of the processing workbench 3, and at the moment, the positioning pushing components 2 are matched with the positioning stoppers 4 to position the horizontal position of the mobile platform 1 and limit the mobile platform 1 to be separated from the processing workbench 3, thereby synchronously realizing the clamping and positioning of the mobile platform 1.
An operator installs the positioning pushing component 2 and the positioning stopper 4 with the same distribution structure on the processing working tables 3 of different processing stations respectively, the mobile station 1 bears a workpiece and keeps the same processing zero point all the time when the workpiece is switched on different stations, the auxiliary time for re-aligning the zero point is saved, the continuity of workpiece processing is ensured, the working efficiency is improved, compared with a zero point positioning system, a plurality of locking modules do not need to be manually and synchronously aligned, and the efficiency of workpiece transposition and clamping positioning is improved.
Referring to fig. 1 and 2, the positioning pushing assembly 2 includes a positioning pressing cylinder 21, a mounting plate 22 is fixed to a bottom surface of the positioning pressing cylinder 21, and the positioning pressing cylinder 21 is mounted on a top surface of the machining table 3 through the mounting plate 22. The end of the piston rod of the positioning and pressing cylinder 21 is provided with a pushing block 23, the top surface of the mounting plate 22 is provided with a guide block 24 corresponding to the piston rod of the positioning and pressing cylinder 21, the guide block 24 is provided with a guide groove 241 facing the pushing block 23, and the pushing block 23 slides in the guide groove 241 in the telescopic process of the piston rod of the positioning and pressing cylinder 21.
Referring to fig. 2 and 3, the bottom surface of the mobile station 1 is provided with a receiving block 11 corresponding to each abutting block 23, an inclined pushing surface 231 is formed at one end of the abutting block 23 facing the corresponding receiving block 11, and the inclined pushing surface 231 inclines downwards and forms an acute angle with the top surface of the machining workbench 3. The end parts of the abutting blocks 11 facing the corresponding abutting blocks 23 are formed with abutting surfaces 111, the abutting surfaces 111 are matched with the corresponding inclined pushing surfaces 231, when the inclined pushing surfaces 231 abut against the abutting surfaces 111, the abutting blocks 23 abut against the abutting blocks 11 towards the positioning blocking parts 4 on the opposite sides and press the abutting blocks 11 downwards towards the top surfaces of the machining workbench 3, and therefore horizontal and vertical clamping and positioning of the mobile platform 1 are achieved quickly.
Referring to fig. 1 and 3, two positioning stoppers 4 are disposed on two adjacent sides of the processing table 3, and two positioning pressing cylinders 21 having the same pushing direction are sequentially distributed along the long side of the top surface of the processing table 3 and are distributed along the short side of the top surface of the processing table 3 in a staggered manner. At this time, the four positioning pressing cylinders 21 disperse force application ends on the top surface of the processing workbench 3, which is beneficial to enabling the mobile station 1 to be uniformly stressed and stably attached to the positioning stoppers 4 on two sides of the processing workbench 3.
Referring to fig. 1 and 2, two adjacent side walls of the mobile station 1 are respectively provided with two positioning pasting plates 12, the positioning pasting plates 12 can be integrally formed with the mobile station 1, and the four positioning pasting plates 12 correspond to the four positioning stoppers 4 one by one. The positioning pasting plate 12 facilitates the operator to quickly and preliminarily align the positioning stopper 4 when the mobile station 1 is placed on the processing workbench 3, and each abutting block 23 aligns with the corresponding abutting block 11, thereby being beneficial to the auxiliary improvement of the efficiency of clamping and positioning the mobile station 1.
In addition, the friction plates 242 are detachably arranged on the groove top wall and the groove bottom wall of the guide groove 241, when the positioning pressing cylinder 21 pushes the abutting block 23 to abut against the abutting block 11, the abutting surface 111 forms a reverse acting force on the inclined pushing surface 231, and the guide block 24 and the guide groove 241 assist in pressing down the abutting block 11 when guiding the abutting block 11 to move to abut against the abutting block 11, so that the structural stability of pressing down the abutting block 11 by the abutting block 11 is improved. In the sliding process of the pushing block 23, the groove wall of the guide groove 241 and the pushing block 23 are worn, the friction plate 242 is beneficial to protecting the groove wall of the guide groove 241, and the detachable friction plate 242 and the pushing block 23 are convenient to replace in time when the wear is too large so as to maintain the guiding function of the guide groove 241 and the pushing function of the pushing block 23.
Meanwhile, referring to fig. 1 and 3, two universal lifting rings 14 are respectively installed on the two long side walls of the mobile station 1, and the two universal lifting rings 14 on the same side correspond to the two ends of the long side of the mobile station 1 one by one. A plurality of supporting legs 13 are installed on the bottom surface of the mobile station 1, and the supporting legs 13 are matched with the four supporting blocks 11 and are uniformly distributed on the bottom surface of the mobile station 1. An operator can hoist and move the mobile station 1 horizontally and stably through the four universal hoisting rings 14, and when the mobile station 1 is arranged on the machining workbench 3, the supporting legs 13 are matched with the supporting blocks 11 to improve the horizontal placing stability of the mobile station 1.
The implementation principle of the embodiment 1 is as follows: an operator clamps a workpiece on the mobile platform 1, lifts the mobile platform 1 through the four universal lifting rings 14 and moves the mobile platform 1 until each positioning attachment plate 12 is aligned with the corresponding positioning stopper 4, and then horizontally places the mobile platform 1 on the machining workbench 3;
starting the two positioning pressing cylinders 21 with the same pushing direction to drive the pushing block 23 to push out towards the corresponding bearing block 11, pushing the bearing surface 111 by the inclined pushing surface 231 until the mobile station 1 is attached to the corresponding two positioning stoppers 4, and then driving the piston rods of the two positioning pressing cylinders 21 to contract;
starting the other two positioning pressing cylinders 21 with the same pushing direction to push the mobile station 1 to attach the corresponding other two positioning stoppers 4 and keep a pushing state;
the positioning compression cylinder 21 with two contracted piston rods synchronously started ejects the piston rods again, so that the four pushing blocks 23 simultaneously push the corresponding bearing blocks 11, the horizontal position and the longitudinal position of the mobile station 1 are synchronously positioned, positioning and locking are synchronously completed in the process of workpiece transposition and clamping, and the efficiency of clamping and positioning the transposed workpiece is improved.
Example 2:
referring to fig. 4 and 5, the present embodiment is different from embodiment 1 in that, when the size of the work to be machined becomes large, the sizes of the corresponding moving table 1 and machining table 3 become large. In this embodiment, six positioning pushing assemblies 2 are provided, wherein three positioning pushing assemblies 2 have the same pushing direction, and the other three positioning pushing assemblies 2 have the same pushing direction. The number of the positioning stoppers 4 on the long side of the two adjacent sides of the top surface of the processing workbench 3 is increased to three.
Similarly, three positioning pushing assemblies 2 with the same pushing direction are distributed in sequence along the long side of the top surface of the machining workbench 3, and two adjacent positioning pushing assemblies 2 are distributed in a staggered manner along the short side of the top surface of the machining workbench 3. At this time, three positioning and pressing cylinders 21 with the same pushing direction are distributed in a V-shaped broken line, the other three positioning and pressing cylinders 21 with the same pushing direction are also distributed in a V-shaped broken line, and the openings of the two V-shaped broken lines are opposite. Six location hold-down cylinders 21 are at the scattered application of force end of machining workstation 3 top surface, and three location hold-down cylinders 21 that push the direction the same form the application of force face at machining workstation 3 top surface three points, compare in application of force direction straight line distribution improve the positioning, support the action precision and the stability of tight mobile station 1, are favorable to making the even atress of mobile station 1 and stably laminating the location of machining workstation 3 both sides and keeping off 4.
Compared with a zero positioning system, the positioning compression cylinder 21 forming the positioning pushing assembly 2 is low in cost, and the clamping difficulty between the mobile station 1 and the machining workbench 3 is small along with the increase of the size of a workpiece.
The implementation principle of the embodiment 2 is as follows: an operator clamps the workpiece on the mobile station 1 and moves the workpiece to each positioning pasting plate 12 to align with the corresponding positioning blocking piece 4, and then horizontally places the mobile station 1 on the machining workbench 3;
in the stage of pushing the moving table, only two of the three positioning and pressing cylinders 21 with the same pushing direction need to be started, that is, only four basic positioning and pressing cylinders 21 close to one end of the machining workbench 3 in the length direction need to be used. Starting the two positioning pressing cylinders 21 with the same pushing direction to drive the pushing block 23 to push out towards the corresponding bearing block 11, pushing the bearing surface 111 by the inclined pushing surface 231 until the mobile station 1 is attached to the corresponding three positioning stoppers 4, and then driving the piston rods of the two positioning pressing cylinders 21 to contract;
starting the other two positioning pressing cylinders 21 with the same pushing direction to push the mobile station 1, so that the mobile station 1 is attached to the corresponding other two positioning stoppers 4 and keeps a pushing state;
and synchronously starting the positioning and pressing cylinders 21 of other four non-extended piston rods to enable the six pushing blocks 23 to press the corresponding bearing blocks 11, so that the horizontal position and the longitudinal position of the mobile station 1 are synchronously positioned, positioning and locking are synchronously completed in the process of workpiece transposition and clamping, and the efficiency of clamping and positioning the transposed workpiece is improved.
The embodiment of the application also discloses a machine tool station fixing method.
Referring to fig. 6 and 7, a method for fixing a station of a machine tool includes a detection table 5, four positioning and pressing cylinders 21 are installed on the top surface of the detection table 5, and the distribution structure of the four positioning and pressing cylinders 21 is the same as that of the four positioning and pressing cylinders 21 in embodiment 1 of a machine tool station positioning system.
Referring to fig. 6 and 8, linear guide rails 51 are fixed to the top surface of the inspection table 5 near the two long sides, respectively, and the length direction of the linear guide rails 51 is parallel to the long sides along the top surface of the inspection table 5. The linear guide rail 51 is connected with a vertical column 52 in a sliding way, a detection cross beam 53 is fixedly connected between the two vertical columns 52, and the axial direction of the detection cross beam 53 is parallel to the short side of the top surface of the detection table 5. The side wall of the detection beam 53 is axially fixed with a slide rail 531 along the side wall, a slide plate 54 is connected to the detection beam 53 in a sliding manner along the slide rail 531, a dial indicator 55 is arranged on the slide plate 54, and the detection end of the dial indicator 55 is vertically arranged downwards. The sliding plate 54 and the dial indicator 55 can adopt a magnetic attraction structure, so that the dial indicator 55 can be conveniently mounted and dismounted. The detecting beam 53 can drive the dial indicator 55 to move along the length direction of the detecting table 5 by means of the two columns 52 and the linear guide rail 51, and the sliding plate 54 and the sliding rail 531 can drive the dial indicator 55 to move along the width direction of the detecting table 5.
The top surface of the detection table 5 is provided with anti-collision brackets 56 at both ends of each linear guide rail 51 in the length direction, and a pair of the anti-collision brackets 56 are respectively and relatively provided with a polyurethane anti-collision block 57. When the upright post 52 slides along the linear guide rail 51, the moving range of the upright post 52 is limited relative to the anti-collision bracket 56 and the polyurethane anti-collision block 57, and an anti-collision protection effect is formed.
Referring to fig. 6 and 8, a method for securing a station of a machine tool further includes the steps of:
before a workpiece is machined, the mobile station 1 is moved to the top surface of the detection table 5 in advance, the mobile station 1 is positioned on the detection table 5 through the four positioning pressing cylinders 21 and the positioning blocking pieces 4, then the workpiece is clamped, and at the moment, the machining zero point of the workpiece on the mobile station 1 is the same as the clamping zero point of machining equipment provided with the same positioning pressing cylinder 21 distribution structure.
The upright column 52 is pushed along the linear guide rail 51, and the sliding plate 54 is pushed along the sliding rail 531, so that the dial indicator 55 is used for detecting the installation accuracy of the workpiece on the top surface of the mobile station 1 and other related workpiece surface data, and the workpieces on the mobile station 1 keep the same processing zero point and installation accuracy on the subsequent different processing working tables 3.
Firstly, moving the detected workpiece and the mobile station 1 to a processing workbench 3;
and step two, synchronously driving the positioning and pressing cylinders 21 with the same pressing direction to press the mobile station 1, so that the mobile station 1 presses each positioning stopper 4 and keeps the positioning and pressing cylinders 21 pressing the mobile station 1.
In the second step, the positioning pushing assemblies 2 in the pushing directions are sequentially driven, after the positioning pressing cylinder 21 in the previous pushing direction pushes the mobile station 1 to abut against the corresponding positioning stoppers 4, the abutting action of the positioning pressing cylinder 21 on the mobile station 1 is released, then the positioning pressing cylinder 21 in the next pushing direction is driven to push the mobile station 1, and after the mobile station 1 abuts against all the positioning stoppers 4, all the positioning pressing cylinders 21 are synchronously driven to abut against the mobile station 1.
The number of the moving tables 1 is at least two, in the embodiment of the application, two are taken as an example, after one of the moving tables 1 is used for installing a workpiece and is placed on the detection table 5 for detection, the workpiece is moved to the machining workbench 3 for positioning, clamping and subsequent machining, and the other moving table 1 is used for installing a workpiece and is placed on the detection table 5 for detection.
The implementation principle of the method for fixing the station of the machine tool disclosed by the embodiment of the application is as follows: the distribution structures of the detection table 5 and the positioning compression cylinders 21 on the working table of the processing equipment are kept the same, so that the workpieces on the mobile table 1 can keep the same processing zero point and installation precision on the working tables of the subsequent different processing equipment, and the processing continuity, the processing efficiency and the transposition efficiency are improved. One of the positioning pressing cylinders 21 in the pushing direction pushes against the mobile station 1 and releases the pushing effect, and the other positioning pressing cylinder 21 in the pushing direction pushes against the mobile station 1 and positions the mobile station 1, so that the piston rod does not need to be contracted again, all the positioning pressing cylinders 21 are driven to tightly push against the mobile station 1 to complete the positioning of the mobile station 1, and the mutual interference of the positioning pressing cylinders 21 in all the pushing directions with the movement of the mobile station 1 is reduced;
the two mobile stations 1 are convenient for an operator to clamp a workpiece and correct the processing zero point and the installation precision of the workpiece by using the other mobile station 1 in the process of bearing the workpiece by the previous mobile station 1, so that the workpiece clamping and processing efficiency is improved.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a lathe station positioning system which characterized in that: the workpiece positioning and pushing device comprises a moving platform (1) used for mounting a workpiece and positioning and pushing components (2) used for mounting on a machining workbench (3), wherein at least two positioning and pushing components (2) are arranged, the pushing directions of at least two positioning and pushing components (2) are intersected, a positioning stopper (4) is arranged on the machining workbench (3) and corresponds to the pushing direction of the positioning and pushing components (2), and the positioning and pushing components (2) push the moving platform (1) to abut against the positioning stopper (4) and limit the moving platform (1) to be separated from the machining workbench (3).
2. The machine tool station positioning system of claim 1, wherein: the positioning and pushing assembly (2) comprises a positioning and pressing cylinder (21) arranged on the machining workbench (3), a pushing block (23) is arranged on a piston rod of the positioning and pressing cylinder (21), a bearing block (11) is arranged on the moving platform (1), an inclined pushing surface (231) is formed at one end, facing the bearing block (11), of the pushing block (23), and a bearing surface (111) matched with the inclined pushing surface (231) is formed on the bearing block (11);
when the inclined pushing surface (231) pushes the bearing surface (111), the pushing block (23) pushes the bearing block (11) towards the corresponding positioning stopper (4) and presses the bearing block (11) downwards towards the machining workbench (3).
3. A machine tool station positioning system as defined in claim 2, wherein: a guide block (24) is installed on the machining workbench (3), and a guide groove (241) for the sliding connection of the pushing block (23) is formed in the guide block (24).
4. A machine tool station positioning system as defined in claim 3, wherein: and a friction plate (242) for jointing the pushing block (23) is detachably arranged on the groove wall of the guide groove (241).
5. The machine tool station positioning system of claim 1, wherein: the positioning stopper (4) is respectively distributed with a plurality of positioning pushing components (2) which push the mobile station (1) towards the two adjacent side edges of the processing workbench (3), the positioning pushing components (2) which push the mobile station towards the two adjacent side edges of the processing workbench (3) are respectively provided with a plurality of positioning pushing components, the positioning pushing components (2) with the same pushing direction are sequentially distributed along one side edge of the processing workbench (3), and the two adjacent positioning pushing components (2) with the same distribution direction are distributed along the other side edge of the processing workbench (3) in a staggered manner.
6. The machine tool station positioning system of claim 1, wherein: and a positioning pasting plate (12) used for pasting the positioning stopper (4) is arranged on the side wall of the mobile station (1).
7. A machine tool station fixing method is characterized in that: the method comprises the following steps:
step one, a workpiece is arranged on a moving platform (1), and then the moving platform (1) is moved to a processing workbench (3);
and step two, synchronously driving the positioning pushing components (2) with the same pushing direction to push the mobile station (1), so that the mobile station (1) abuts against each positioning stopper (4) and keeps the positioning pushing components (2) to tightly abut against the mobile station (1).
8. The machine tool station fixing method according to claim 7, wherein: the positioning pushing components (2) in all pushing directions are sequentially driven, after the positioning pushing component (2) in the previous pushing direction pushes the mobile station (1) to abut against the corresponding positioning stoppers (4), the abutting effect of the positioning pushing component (2) on the mobile station (1) is relieved, then the positioning pushing component (2) in the next pushing direction is driven to push the mobile station (1), and after the mobile station (1) abuts against all the positioning stoppers (4), all the positioning pushing components (2) are synchronously driven to abut against the mobile station (1).
9. The machine tool station fixing method according to claim 7, wherein: the detection device is characterized by further comprising a detection table (5), wherein a plurality of positioning pushing assemblies (2) and a plurality of positioning stoppers (4) are arranged on the detection table (5), and the distribution structures of the plurality of positioning pushing assemblies (2) and the plurality of positioning stoppers (4) on the detection table (5) are the same as the distribution structures of the positioning pushing assemblies (2) and the positioning stoppers (4) on the machining workbench (3);
firstly, moving a mobile station (1) to a detection table (5), abutting and pushing the mobile station (1) through a plurality of positioning abutting and pushing assemblies (2), so that the mobile station (1) abuts against corresponding positioning stoppers (4), then installing a workpiece on the mobile station (1), and detecting the installation accuracy of the workpiece on the mobile station (1) by using a detection piece;
and after the workpiece detection is finished, sequentially performing the first step and the second step.
10. The machine tool station fixing method according to claim 9, wherein: the device is characterized in that at least two moving tables (1) are arranged, one of the moving tables (1) is used for installing a workpiece and is arranged on the detection table (5) to detect the installation accuracy of the workpiece, then the moving table is moved to the machining working table (3) to be positioned and subsequently machined, and then the other moving table (1) is used for installing the workpiece and is arranged on the detection table (5) to detect the installation accuracy of the workpiece.
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| CN202111594893.3A CN114147513B (en) | 2021-12-23 | 2021-12-23 | Machine tool station positioning system and station fixing method |
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|---|---|
| CN114147513B (en) | 2023-11-10 |
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