CN114633135A - Combined clamping method and device for machining center - Google Patents
Combined clamping method and device for machining center Download PDFInfo
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- CN114633135A CN114633135A CN202210263141.7A CN202210263141A CN114633135A CN 114633135 A CN114633135 A CN 114633135A CN 202210263141 A CN202210263141 A CN 202210263141A CN 114633135 A CN114633135 A CN 114633135A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 142
- 238000009826 distribution Methods 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims abstract description 29
- 238000003754 machining Methods 0.000 claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims description 47
- 230000000712 assembly Effects 0.000 claims description 37
- 238000000429 assembly Methods 0.000 claims description 37
- 238000004140 cleaning Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000003801 milling Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 100
- 238000001514 detection method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009864 tensile test Methods 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
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- 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
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- 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)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a combined clamping method and a combined clamping device for a machining center, and relates to the technical field of machining. According to the invention, the first clamping mechanism and the second clamping mechanism are arranged on the table body of the workbench, the power distribution mechanism is arranged in the table body, and the first clamping mechanism and the second clamping mechanism are respectively in driving connection with the power distribution mechanism, so that the clamping device can still be matched with a processing cutter to process when clamping a plurality of sample blanks of different types, and thus the simultaneous processing of a plurality of steel samples can be met.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a combined clamping method and device for a machining center.
Background
In the steel production process, the production process and the product quality of products are generally controlled through sampling detection, and a large amount of processing needs to be performed on each batch of steel with different sizes to obtain steel samples required by various tests such as stretching, bending or DWTT (Drop-Weight Tear Test).
The mode of traditional steel sample processing with manual work is leading, and artifical quantity is big, and machining efficiency is low, can not satisfy growing production demand, consequently, the automated processing system of steel sample comes into production in due charge, adopts the arm to place the sample blank on the clamping device of machining center usually, accomplishes the automated processing of steel sample through lathe milling cutter etc..
However, because the shapes of the steel samples used for different tests such as stretching, bending or DWTT have larger differences, the clamping device of the existing machining center cannot simultaneously process multiple samples required by the tests such as stretching, bending or DWTT, so that the processed steel samples are single in variety and cannot be subjected to various detection tests in time, and the production progress of the steel is influenced.
Disclosure of Invention
The invention solves the problem of how to meet the simultaneous processing of a plurality of steel samples.
In order to solve the above problems, the present invention provides a combined clamping device for a machining center, which includes a first clamping mechanism, a second clamping mechanism and a workbench, wherein the workbench includes a workbench body and a power distribution mechanism disposed on the workbench body, the first clamping mechanism is disposed on the workbench body and is in driving connection with the power distribution mechanism, the first clamping mechanism is adapted to clamp a first sample blank, the second clamping mechanism is disposed on the workbench body and is in driving connection with the power distribution mechanism, and the second clamping mechanism is adapted to clamp a second sample blank and avoid a machining tool.
Optionally, the first clamping mechanism includes first clamping assemblies, two sets of the first clamping assemblies are arranged on the table body at intervals along the width direction of the workbench, one set of the first clamping assemblies is suitable for clamping one end of the first sample blank, and the other set of the first clamping assemblies is suitable for clamping the other end of the first sample blank.
Optionally, the first clamping assembly comprises a first base body, a first sliding block and a first clamping block, the first base body is connected with the platform body and provided with a sliding groove arranged along the length direction of the workbench, the first sliding block is arranged in the sliding groove and is respectively in driving connection with the power distribution mechanism, the first clamping block is respectively arranged on one side of the platform body, away from the first sliding block, and is suitable for being driven by the first sliding block to be arranged along the length direction of the workbench to mutually draw together for clamping the first sample blank.
Optionally, the first clamping block includes a clamping block body and an inclined surface structure, and the inclined surface structure is disposed on an end surface of one side of the clamping block body facing the other first clamping block and inclines from a side far away from the first seat to a side close to the first seat.
Optionally, the first clamping mechanism further comprises a first supporting seat, the first supporting seat is arranged on the table body and located between the two sets of first clamping assemblies, and the first supporting seat is suitable for supporting the first sample blank.
Optionally, the second fixture includes second supporting seat and multiunit second centre gripping subassembly, the multiunit the second centre gripping subassembly is followed the width direction interval of workstation sets up, the second supporting seat sets up on the stage body and be suitable for the support the second sample blank, the second centre gripping subassembly includes the clamping jaw structure, in on the length direction of workstation, two the clamping jaw structure sets up respectively the both sides that the second supporting seat is relative are and be suitable for the edge the length direction of workstation draws close each other with the centre gripping the second sample blank.
Optionally, the clamping jaw structure includes pivot and clamping jaw, in on the length direction of workstation, the pivot sets up on the second supporting seat and with the power distribution mechanism drive is connected, the clamping jaw includes connecting portion and clamping part, the clamping part with pivot parallel arrangement, the one end of connecting portion with the clamping part is connected, the other end of connecting portion with the pivot is kept away from the part of second supporting seat is connected, the pivot is suitable for to follow the length direction of workstation is flexible, and drives the clamping jaw is at the perpendicular to rotate on the plane of workstation length direction.
Optionally, the clamping device of the machining center combination further includes a rotary pressing mechanism, the rotary pressing mechanism is disposed on the stage and is in driving connection with the power distribution mechanism, the rotary pressing mechanism includes multiple sets of rotary pressing assemblies, at least one set of the rotary pressing assemblies is suitable for pressing the first sample blank and avoiding the machining tool, and at least another set of the rotary pressing assemblies is suitable for pressing the second sample blank and avoiding the machining tool.
Optionally, the rotary compressing assembly includes a rotary seat, a rotary shaft, and a compressing plate, the rotary seat is disposed on the table body, in the height direction of the workbench, the rotary shaft is disposed on the rotary seat and is in driving connection with the power distribution mechanism, a portion of the rotary shaft away from the rotary seat is connected with the compressing plate, and the rotary shaft is adapted to extend and retract along the height direction of the workbench and drive the compressing plate to rotate on a plane perpendicular to the height direction of the workbench.
Optionally, the combined clamping device of the machining center further comprises a cleaning mechanism, the cleaning mechanism comprises at least one cleaner which is arranged on the table body and is suitable for cleaning iron filings, a part of the cleaner, which is far away from the table body, is provided with a rotating head, and the rotating head is suitable for rotating on a plane perpendicular to the height direction of the workbench.
Compared with the prior art, the invention has the following beneficial effects:
the first clamping mechanism and the second clamping mechanism are respectively arranged on the workbench body, the power distribution mechanism is arranged in the workbench body, the first clamping mechanism and the second clamping mechanism are respectively in driving connection with the power distribution mechanism, and power input from the outside is distributed through the power distribution mechanism, so that the first clamping mechanism can be driven to clamp the first sample blank and be matched with a processing cutter for processing, the second clamping mechanism can be driven to clamp the second sample blank and be matched with the processing cutter for processing, and the processing cutter can be avoided when moving to the clamping position of the second clamping mechanism, so that the clamping device can still be matched with the processing cutter for processing when clamping sample blanks of multiple different types, and the simultaneous processing of multiple steel samples can be met.
The invention also aims to provide a processing method to solve the problem of how to meet the simultaneous processing of a plurality of steel samples.
In order to solve the above problems, the technical solution of the present invention is realized as follows:
the machining method adopts the machining center combined clamping device, and is characterized by comprising the following steps:
placing the sample blank on a first clamping mechanism and a second clamping mechanism of the machining center combined clamping device;
the first clamping mechanism and the second clamping mechanism detect and confirm whether the sample blank is placed completely;
a power distribution mechanism of the machining center combined clamping device drives the first clamping mechanism and the second clamping mechanism to push and press the sample blank to a fixed position;
milling the sample blank according to a preset PLC program;
the second clamping mechanism rotates and avoids the machining tool until the sample blank finishes milling
The advantages of the processing method in the prior art are the same as those of the processing center combined clamping device, and are not described herein again.
Drawings
FIG. 1 is a schematic structural diagram of a machining center assembly fixture according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the machining center assembly clamping device in another state according to the embodiment of the present invention;
FIG. 3 is a schematic view of a partial structure of a machining center assembly clamping device according to an embodiment of the present invention;
FIG. 4 is an enlarged view of the embodiment of the present invention at A in FIG. 3;
fig. 5 is another partial schematic structural view of the machining center assembly clamping device according to the embodiment of the invention.
Description of reference numerals:
1-a first clamping mechanism, 11-a first clamping assembly, 111-a first seat body, 112-a first sliding block, 113-a first clamping block, 1131-a clamping block body, 1132-a slope structure, 12-a first supporting seat, 2-a second clamping mechanism, 21-a second supporting seat, 22-a second clamping assembly, 221-a clamping jaw structure, 2211-a rotating shaft, 2212-a clamping jaw, 3-a workbench, 31-a table body, 32-a power distribution mechanism, 4-a rotary pressing mechanism, 41-a rotary pressing assembly, 411-a rotating seat, 412-a rotating shaft, 413-a pressing plate, 5-a cleaning mechanism, 51-a cleaner, 511-a rotating head, 100-a first sample blank and 200-a second sample blank.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be understood that the forward direction of "X" in the drawings represents the left direction, and correspondingly, the reverse direction of "X" represents the right direction; the forward direction of "Y" represents forward, and correspondingly, the reverse direction of "Y" represents rearward; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the directions or positional relationships indicated by the terms "X", "Y", "Z", etc. are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus should not be construed as limiting the present invention. The terms "first" and "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 and 2, the cross-sectional shape of a steel material sample used for a tensile test is generally a line with two large ends and a thin middle, for convenience of description, a blank for manufacturing the steel material sample is referred to as a first sample blank 100, and when the first sample blank 100 is processed, a middle part of the processing tool needs to be milled, so that the parts of the processing tool near the two ends can be clamped by a clamp; although the steel sample for bending or DWTT test has different purposes and different length-width ratios, the section of the steel sample is generally rectangular, for convenience of description, the blank for manufacturing the steel sample can be called as a second sample blank 200, when the second sample blank 200 is processed, the processing cutter needs to mill the outer walls of the four sides of the second sample blank, so that the clamp for clamping the second sample blank 200 needs to avoid when the processing cutter moves to a corresponding position, however, the clamping device of the existing processing center is difficult to clamp two different types of sample blanks simultaneously, the processed steel sample is single in variety, various detection tests cannot be performed in time, and the production progress of steel is influenced.
In order to solve the above problems, an embodiment of the present invention provides a clamping device for a machining center assembly, including a first clamping mechanism 1, a second clamping mechanism 2, and a table 3, where the table 3 includes a table 31 and a power distribution mechanism 32 disposed on the table 31, the first clamping mechanism 1 is disposed on the table 31 and is in driving connection with the power distribution mechanism 32, and the first clamping mechanism 1 is adapted to clamp a first sample blank 100, the second clamping mechanism 2 is disposed on the table 31 and is in driving connection with the power distribution mechanism 32, and the second clamping mechanism 2 is adapted to clamp a second sample blank 200 and move away from a machining tool.
As shown in fig. 1 and 2, the power of the machining center usually comes from a hydraulic pump or an air pump, etc., which transmits power to the power distribution mechanism 32 through a main pipeline, the power distribution mechanism 32 transmits power to each actuator through each branch pipeline, etc., and the power distribution mechanism 32 is provided with a solenoid valve, etc., which controls the on/off of each branch pipeline through the solenoid valve, etc., so as to control the hydraulic cylinder or the air cylinder of each actuator to perform corresponding operations, and the power distribution mechanism 32 may be provided on the table body 31 by welding or bolting the pipeline, etc., and may be provided with a solenoid valve, etc., at the node position of each branch pipeline, or may be provided with a grid type channel inside the table body 31, and provided with a solenoid valve, etc., at the node position of each channel.
In this embodiment, in order to make the structure of the workbench 3 more simple, conveniently set up each attachment structure on the surface thereof, reduce the gap between each attachment structure, and conveniently clean the surface of the workbench 3, a grid-type channel may be set up inside the table body 31 of the workbench 3, and a power distribution mechanism 32 may be formed by setting up electromagnetic valves and other structures at the node positions of each channel.
It should be noted that the first clamping mechanisms 1 may be disposed at intervals along the length direction or the width direction of the workbench 3, the second clamping mechanisms 2 may also be disposed at intervals along the length direction or the width direction of the workbench 3, and when the first clamping mechanisms 1 and the second clamping mechanisms 2 are disposed at intervals along the same direction, the two clamping mechanisms may be disposed in parallel or along the same straight line, and may be specifically disposed according to actual conditions such as the shapes and the sizes of the first clamping mechanisms 1, the second clamping mechanisms 2, and the workbench 3, which is not limited herein.
As shown in fig. 1 and 2, the longitudinal direction of the table 3 is the X-axis direction, and the width direction of the table 3 is the Y-axis direction.
In addition, because the steel samples used for bending or DWTT tests have different length-width ratios, in order to facilitate the simultaneous processing of a plurality of steel samples for different purposes, a plurality of second clamping mechanisms 2 can be provided, and the basic structures of the plurality of second clamping mechanisms 2 are the same, except that the clamping parameters (such as the height of the supporting seat or the distance between the clamping jaws) of each second clamping mechanism 2 are adjusted correspondingly due to the different sizes of clamping objects.
Thus, by arranging the first and second clamping mechanisms 1 and 2 on the table body 31 of the table 3, and a power distribution mechanism 32 is arranged in the table body 31, the first clamping mechanism 1 and the second clamping mechanism 2 are respectively connected with the power distribution mechanism 32 in a driving way, the power distribution mechanism 32 distributes externally input power to drive the first clamping mechanism 1 to clamp the first sample blank 100 and to work with the machining tool, and also to drive the second clamping mechanism 2 to clamp the second sample blank 200, and is matched with a processing cutter for processing, and can also carry out avoidance when the processing cutter moves to the clamping position of the second clamping mechanism 2, the clamping device can still be matched with a machining cutter to machine when clamping a plurality of different types of sample blanks, so that the simultaneous machining of a plurality of steel samples can be met.
Optionally, the first clamping mechanism 1 includes first clamping assemblies 11, two sets of first clamping assemblies 11 are disposed on the table body 31 at intervals along the width direction of the workbench 3, one set of first clamping assemblies 11 is adapted to clamp one end of the first sample blank 100, and the other set of first clamping assemblies 11 is adapted to clamp the other end of the first sample blank 100.
As shown in fig. 1 to 3, in the present embodiment, since the machining tool needs to mill the middle portion of the first sample material 100, in order to avoid interference with the operation of the machining tool, the first clamping mechanism 1 is configured such that two sets of first clamping units 11 are provided at intervals in the width direction of the table 3, one set of first clamping units 11 clamps the front end portion of the first sample material 100, and the other set of first clamping units 11 clamps the rear end portion of the first sample material 100.
It should be noted that the first clamping assembly 11 may be clamped vertically or horizontally, and may be specifically arranged according to a loading and unloading manner of the first sample blank 100, which is not limited herein.
Optionally, the first clamping assembly 11 includes a first seat 111, a first slider 112 and a first clamping block 113, the first seat 111 is connected to the table body 31 and is provided with a sliding slot arranged along the length direction of the workbench 3, the two first sliders 112 are arranged in the sliding slot and are respectively in driving connection with the power distribution mechanism 32, and the two first clamping blocks 113 are respectively arranged on one side of the first slider 112 away from the table body 31 and are adapted to be driven by the first slider 112 to be drawn together along the length direction of the workbench 3 to clamp the first sample blank 100.
As shown in fig. 3, in this embodiment, the bottom of the first seat 111 can be connected to the table body by welding, riveting or bolting, the bottom of the first seat 111 is provided with a hole structure, the corresponding position on the table body 31 is provided with a hole structure communicated with the power distribution mechanism 32, the first seat 111 is disposed on the table body 31 and the hole structures of the two are hermetically connected, the first seat 111 is hollow and can be provided with a driving member such as a small cylinder or a hydraulic cylinder, the driving member is hermetically connected to the hole structure on the first seat 111 so that the driving member can be driven by the power distribution mechanism 32 to move, the upper portion of the first seat 111 is provided with a sliding slot, the cross-sectional shape of the sliding slot is T-shaped, the bottom of the first slider 112 is disposed in the sliding slot and connected to the driving member so that the first slider 112 can move along the length direction of the table 3 under the driving of the driving member, the upper portion of first slider 112 is equipped with ascending protruding structure, and the bottom of first clamp splice 113 is equipped with the groove structure with protruding structure assorted, and the groove structure of first clamp splice 113 is connected the back with the protruding structure of first slider 112 and is passed through bolt locking to make first slider 112 can drive first clamp splice 113 and remove.
It should be noted that the two first sliding blocks 112 may share one driving member, for example, the driving member adopts a parallel-bar cylinder disposed along the length direction of the working table 3, one first sliding block 112 is disposed on the left side of the double-bar cylinder, the other first sliding block 112 is disposed on the right side of the double-bar cylinder, when two piston rods of the double-bar cylinder move in opposite directions, the two first sliding blocks 112 may be driven to approach each other, so that the two first clamping blocks 113 clamp the first sample blank 100, and when the two piston rods move in opposite directions, the two first sliding blocks 112 may be driven to separate, so that the two first clamping blocks 113 release the first sample blank 100.
Optionally, the first clamping block 113 includes a clamping block body 1131 and a ramp structure 1132, and the ramp structure 1132 is disposed on an end surface of the clamping block body 1131 facing to a side of the other first clamping block 113, and is inclined from a side far away from the first seat 111 to a side close to the first seat 111.
As shown in fig. 3, since the first sample blank 100 has a certain thickness and most of the parts of the first sample blank 100 clamped by the first sample blank are not regular shapes with the same vertical width, in order to make the first sample blank 100 not easily escape from between the two first clamping blocks 113 when the processing tool processes the first sample blank 100, in this embodiment, a slope structure 1132 is disposed on one side of the clamping block body 1131 of the first clamping block 113 facing the first sample blank 100, and the slope structure 1132 inclines from one side away from the first seat 111 to one side close to the first seat 111, so that the distance between the upper end surfaces of the two first clamping blocks 113 is smaller than the distance between the lower end surfaces, and the first sample blank 100 can be prevented from escaping from between the two first clamping blocks 113.
It should be noted that, structures such as bumps may be respectively disposed on the end surfaces of the two first clamping blocks 113 facing the first sample blank 100, so as to increase the friction between the first clamping blocks 113 and the first sample blank 100, and to further stabilize the clamping of the first sample blank 100.
Optionally, the first clamping mechanism 1 further comprises a first supporting seat 12, the first supporting seat 12 is disposed on the table body 31 and located between the two sets of first clamping assemblies 11, and the first supporting seat 12 is adapted to support the first sample blank 100.
As shown in fig. 3 and 4, in order to facilitate milling of the side wall of the first sample blank 100 by the machining tool and avoid the milling tool from accidentally damaging the table 3, in this embodiment, a first support base 12 is further provided on the table 3 for supporting the first sample blank 100, and the first support base 12 may be fixed to the table body 31 by welding, riveting, bolting, or the like.
It should be noted that the first supporting seat 12 is disposed between the two sets of the first clamping assemblies 11, one or more first supporting seats 12 may be disposed, a plurality of first supporting seats 12 are disposed at intervals, and the upper portion of the first supporting seat 12 for supporting the portion to be milled in the middle of the first sample blank 100 may be in the form of a convex structure, and the width of the convex structure should be smaller than the width of the middle portion of the first sample blank 100.
In addition, in order to facilitate the actuator to confirm whether the first sample blank 100 has been placed on the first support seat 12, a detection structure may be further provided on the first support seat 12, for example, a micro air passage is provided inside the first support seat 12, and when the first sample blank 100 is placed on the first support seat 12, a signal generated by a change in the pressure of the air source in the micro air passage is fed back to the detection actuator, so as to assist in confirming whether the first sample blank 100 has been placed on the first support seat 12.
Optionally, the second clamping mechanism 2 includes a second supporting seat 21 and a plurality of sets of second clamping assemblies 22, the plurality of sets of second clamping assemblies 22 are disposed at intervals along the width direction of the workbench 3, the second supporting seat 21 is disposed on the platform 31 and adapted to support the second sample blank 200, the second clamping assembly 22 includes a clamping jaw structure 221, and in the length direction of the workbench 3, the two clamping jaw structures 221 are disposed on two opposite sides of the second supporting seat 21 respectively and adapted to be drawn together along the length direction of the workbench 3 to clamp the second sample blank 200.
As shown in fig. 1, 2 and 5, since each part of the peripheral side wall of the second sample blank 200 is milled by the machining tool, after the second clamping mechanism 2 clamps and fixes the second sample blank 200, when the machining tool mills to a corresponding position, the second clamping assembly 22 at the corresponding position needs to be avoided, and therefore, in order to prevent the second sample blank 200 from shifting when the second clamping assembly 22 is avoided from the machining tool, the second clamping assemblies 22 should be provided in multiple sets, and the multiple sets of second clamping assemblies 22 are arranged at intervals, so that at least one set of second clamping assemblies 22 can clamp the second sample blank 200 when the milling tool mills the second sample blank 200.
Specifically, in this embodiment, two sets of second clamping assemblies 22 are provided, the two sets of second clamping assemblies 22 are disposed on the second supporting seat 21 at intervals along the width direction of the worktable 3, the two clamping jaw structures 221 of each set of second clamping assemblies 22 are disposed on two opposite sides of the second supporting seat 21 along the length direction of the worktable 3, the second supporting seat 21 can be fixed on the worktable 3 by welding, riveting or bolting, and the bottom of second supporting seat 21 is equipped with the pore structure, and corresponding position department is equipped with the pore structure with power distribution mechanism 32 intercommunication on the stage body 31 of workstation 3, and the pore structure of the two is airtight to be connected, and the inside cavity of second supporting seat 21 is and be equipped with the drive structure, and the drive structure communicates with the pore structure and can drive two clamping jaw structures 221 of corresponding second centre gripping subassembly 22 and draw close each other along the length direction of workstation 3 thereby centre gripping second sample blank 200 under the drive of power distribution mechanism 32.
It should be noted that, a detection structure may also be disposed on the second support seat 21, so as to facilitate an execution mechanism to determine whether the second sample blank 200 has been placed on the second support seat 21, and the specific form of the detection structure may be referred to above, and is not described herein again.
Optionally, the clamping jaw structure 221 includes a rotating shaft 2211 and a clamping jaw 2212, in the length direction of the working table 3, the rotating shaft 2211 is disposed on the second supporting seat 21 and is drivingly connected to the power distribution mechanism 32, the clamping jaw 2212 includes a connecting portion and a clamping portion, the clamping portion is disposed parallel to the rotating shaft 2211, one end of the connecting portion is connected to the clamping portion, the other end of the connecting portion is connected to a portion of the rotating shaft 2211 away from the second supporting seat 21, and the rotating shaft 2211 is adapted to extend and retract along the length direction of the working table 3 and drive the clamping jaw 2212 to rotate on a plane perpendicular to the length direction of the working table 3.
As shown in fig. 5, in order to facilitate the clamping jaw structure 221 to clamp the second sample blank 200 and avoid the second sample blank 200 when the machining tool mills the corresponding portion of the second sample blank 200, in this embodiment, the clamping jaw structure 221 is formed by a rotating shaft 2211 and a clamping jaw 2212, specifically, the clamping jaw 2212 is formed by a structure having an L-shaped cross section and includes a connecting portion and a clamping portion with vertically connected end portions, the rotating shaft 2211 is disposed on the second support base 21 along the length direction of the worktable 3, one end of the rotating shaft 2211 is drivingly connected with a driving structure disposed inside the second support base 21, the other end of the rotating shaft 2212 extends out of the second support base 21 and is connected with the connecting portion of the clamping jaw 2212, and the clamping portion of the clamping jaw 2212 is disposed parallel to the rotating shaft 2211 and one end of the clamping portion away from the connecting portion is adapted to abut against the second sample blank 200 so as to clamp the second sample blank 200.
It should be noted that, the two actions of extending and retracting the rotating shaft 2211 along the length direction of the working table 3 and driving the clamping jaw 2212 to rotate on the plane perpendicular to the length direction of the working table 3 can be realized by the driving structure arranged inside the second supporting seat 21, and the two actions can be extended and retracted first and then rotated, and can also be rotated while being extended and retracted, and specifically can be arranged as required, and there is no limitation here, preferably, in order to prevent the clamping jaw 2212 from being damaged, the rotating shaft 2211 can be extended and retracted first and then rotated, and the rotating angle of the clamping jaw 2212 ranges from 60 ° to 120 °, for example, 90 °, that is, the connecting portion of the clamping jaw rotates from the vertical state (along the Z-axis direction) to the horizontal state (along the Y-axis direction); in addition, the driving structure may adopt a micro cylinder or a hydraulic oil cylinder as a driving member, and the specific structural form thereof is the prior art and is not described herein.
As shown in fig. 5, the plane perpendicular to the longitudinal direction of the table 3 is a plane parallel to the YZ plane.
Optionally, the machining center combined clamping device further comprises a rotary pressing mechanism 4, the rotary pressing mechanism 4 is arranged on the table body 31 and is in driving connection with the power distribution mechanism 32, the rotary pressing mechanism 4 comprises a plurality of groups of rotary pressing assemblies 41, at least one group of rotary pressing assemblies 41 is suitable for pressing the first sample blank 100 and avoiding the machining tool, and at least another group of rotary pressing assemblies 41 is suitable for pressing the second sample blank 200 and avoiding the machining tool.
As shown in fig. 1 to 3, since the machining tool needs to bear a large force when milling the first sample blank 100 or the second sample blank 100, in order to further prevent the first sample blank 100 or the second sample blank 200 from being displaced or escaping from the corresponding clamping mechanism, in this embodiment, the rotary pressing mechanism 4 composed of a plurality of sets of rotary pressing assemblies 41 is further provided on the working table 3, and the first sample blank 100 or the second sample blank 200 can be further prevented from being displaced or escaping from the corresponding clamping mechanism by the cooperation between each set of rotary pressing assemblies 41 and the corresponding supporting seat.
Alternatively, the rotating and pressing assembly 41 includes a rotating base 411, a rotating shaft 412 and a pressing plate 413, the rotating base 411 is disposed on the table body 31, the rotating shaft 412 is disposed on the rotating base 411 and drivingly connected to the power distribution mechanism 32 in the height direction of the workbench 3, a portion of the rotating shaft 412 away from the rotating base 411 is connected to the pressing plate 413, and the rotating shaft 412 is adapted to extend and retract in the height direction of the workbench 3 and drive the pressing plate 413 to rotate on a plane perpendicular to the height direction of the workbench 3.
As shown in fig. 1 to fig. 3, in this embodiment, the rotary base 411 may be connected to the table body 31 by welding, riveting or bolting, a hole structure is disposed at the bottom of the rotary base 411, a hole structure communicated with the power distribution mechanism 32 is disposed at a corresponding position on the table body 31, the hole structures of the two are hermetically connected, the rotary base 411 is hollow and may be provided with a driving structure, the driving structure is drivingly connected to the power distribution mechanism 32 through the hole structure, a rotating shaft 412 is disposed on the rotary base 411 along the height direction of the table 3, one end of the rotating shaft is drivingly connected to the driving structure, the other end of the rotating shaft is connected to the pressing plate 413, the rotating shaft 412 is driven by the driving structure to extend and retract along the height direction of the table 3 and to drive the pressing plate 413 to rotate on a plane perpendicular to the height direction of the table 3, the driving structure may use a micro cylinder or a hydraulic cylinder as a driving member, and its specific structural form is the prior art, and will not be described in detail herein.
It should be noted that, the rotation shaft 412 can extend and contract along the height direction of the workbench 3 and drive the pressing plate 413 to rotate on the plane perpendicular to the height direction of the workbench 3, and the two actions can be first extending and contracting and then rotating, or can also be rotating while extending and contracting, and can be specifically set as required, and are not limited herein, preferably, in order to prevent the pressing plate 413 from colliding with other structures during the rotation process, the rotation shaft 412 can adopt a manner of first extending and then rotating, and the rotation angle of the pressing plate 413 ranges from 60 ° to 120 °, for example, 90 °, that is, the pressing plate 413 rotates from the state perpendicular to the sample blank (along the X-axis direction) to the state parallel to the sample blank (along the Y-axis direction).
As shown in fig. 3, the height direction of the table 3 is the Z-axis direction, and the plane perpendicular to the height direction of the table 3 is a plane parallel to the XY-plane.
Optionally, the machining center combined clamping device further comprises a cleaning mechanism 5, the cleaning mechanism 5 comprises at least one cleaner 51 which is arranged on the table body 31 and is suitable for cleaning the iron filings, a part of the cleaner 51 far away from the table body 31 is provided with a rotating head 511, and the rotating head 511 is suitable for rotating on a plane perpendicular to the height direction of the workbench 3.
As shown in fig. 1, 2 and 5, because the processing tool will generate a large amount of iron filings when milling the sample blank, and the iron filings will obstruct the traveling of the processing tool if not cleaning a large amount of accumulated iron filings in time, in this embodiment, a cleaning mechanism 5 composed of a plurality of cleaners 51 is further provided on the worktable 3, one side of each clamping mechanism is provided with at least one cleaner 51, the cleaner 51 can be a cylindrical cleaner, an air supply channel is provided inside the cleaner 51, the bottom of the air supply channel is connected with a hole structure arranged at a corresponding position on the worktable 3 in an airtight manner, the iron filings on the worktable 3 can be cleaned by a pressure air supply output by the power distribution mechanism 32, and meanwhile, in order to enlarge the action range of the cleaner 51, a rotating head 511 capable of rotating on a plane perpendicular to the height direction of the worktable 3 can be provided at the top of the cleaner 51, the cleaning direction is adjusted by the rotating head 511, so that the requirement of automatic processing is met.
As shown in fig. 1 and fig. 2, the working process of the combined clamping device of the machining center in this embodiment is as follows: when a joint robot or a mechanical arm and other mechanisms grab, stretch, bend or DWTT and other sample blanks and place the sample blanks on the clamping device, firstly, the numerical control system is used for comparing with a preset PLC program, whether the sample blanks are placed on the supporting seat is secondarily confirmed through each detection structure on the corresponding supporting seat, after the situation that no errors exist is confirmed, the execution mechanism transmits power and drives the first clamping mechanism 1, the second clamping mechanism 2 and the rotary pressing mechanism 4 to push and press the sample blanks to a fixed position through the power distribution mechanism 32, a machining cutter of the device starts to mill the sample blanks according to the preset PLC program, and when the machining cutter moves to the corresponding position in the milling process, the clamping jaw structure 221 of the second clamping mechanism 2 and the pressing plate 413 of the rotary pressing mechanism 4 complete a series of actions such as rotary avoiding and the like until the milling of the sample blanks is completed, the numerical control system executes a cleaning command, and a cleaner 51 of the cleaning mechanism 5 performs automatic cleaning operation on the workbench 3 through a high-pressure air source input by the power distribution mechanism 32 to prepare for the next milling process.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications are intended to fall within the scope of the invention.
Claims (11)
1. The utility model provides a machining center makes up clamping device for centre gripping steel sample, characterized in that, includes first fixture (1), second fixture (2) and workstation (3), workstation (3) include stage body (31) and set up power distribution mechanism (32) on stage body (31), first fixture (1) sets up on stage body (31) and with power distribution mechanism (32) drive connection, just first fixture (1) is suitable for centre gripping first sample blank (100), second fixture (2) set up on stage body (31) and with power distribution mechanism (32) drive connection, just second fixture (2) are suitable for centre gripping second sample blank (200) and dodge the processing cutter.
2. The machining center combined clamping device according to claim 1, wherein the first clamping mechanism (1) comprises first clamping assemblies (11), two sets of the first clamping assemblies (11) are arranged on the table body (31) at intervals along the width direction of the workbench (3), one set of the first clamping assemblies (11) is suitable for clamping one end of the first sample blank (100), and the other set of the first clamping assemblies (11) is suitable for clamping the other end of the first sample blank (100).
3. The combined clamping device of the machining center according to claim 2, wherein the first clamping assembly (11) comprises a first seat body (111), first sliding blocks (112) and first clamping blocks (113), the first seat body (111) is connected with the table body (31) and provided with sliding grooves arranged along the length direction of the workbench (3), the two first sliding blocks (112) are arranged in the sliding grooves and respectively connected with the power distribution mechanism (32) in a driving manner, and the two first clamping blocks (113) are respectively arranged on one sides of the first sliding blocks (112) far away from the table body (31) and are suitable for being driven by the first sliding blocks (112) to mutually approach along the length direction of the workbench (3) to clamp the first sample blank (100).
4. The machining center combined clamping device as claimed in claim 3, wherein the first clamping block (113) comprises a clamping block body (1131) and a slope structure (1132), and the slope structure (1132) is arranged on an end surface of one side of the clamping block body (1131) facing to the other first clamping block (113) and inclines from a side far away from the first seat (111) to a side close to the first seat (111).
5. Machining center group clamping device according to claim 2, characterized in that the first clamping mechanism (1) further comprises a first support (12), the first support (12) being arranged on the table body (31) between two sets of the first clamping assemblies (11), and the first support (12) being adapted to support the first sample blank (100).
6. The machining center combined clamping device according to any one of claims 1 to 5, wherein the second clamping mechanism (2) comprises a second supporting seat (21) and a plurality of groups of second clamping assemblies (22), the plurality of groups of second clamping assemblies (22) are arranged at intervals along the width direction of the workbench (3), the second supporting seat (21) is arranged on the workbench body (31) and is suitable for supporting the second sample blank (200), the second clamping assembly (22) comprises clamping jaw structures (221), and in the length direction of the workbench (3), the two clamping jaw structures (221) are respectively arranged on two opposite sides of the second supporting seat (21) and are suitable for being mutually close along the length direction of the workbench (3) to clamp the second sample blank (200).
7. The combined clamping device of the machining center according to claim 6, wherein the clamping jaw structure (221) comprises a rotating shaft (2211) and a clamping jaw (2212), the rotating shaft (2211) is arranged on the second supporting seat (21) and is in driving connection with the power distribution mechanism (32) in the length direction of the workbench (3), the clamping jaw (2212) comprises a connecting portion and a clamping portion, the clamping portion is arranged in parallel with the rotating shaft (2211), one end of the connecting portion is connected with the clamping portion, the other end of the connecting portion is connected with a portion of the rotating shaft (2211) far away from the second supporting seat (21), and the rotating shaft (2211) is suitable for extending and retracting in the length direction of the workbench (3) and driving the clamping jaw (2212) to rotate on a plane perpendicular to the length direction of the workbench (3).
8. The machining center combined clamping device according to any one of claims 1 to 5, characterized by further comprising a rotary pressing mechanism (4), wherein the rotary pressing mechanism (4) is arranged on the table body (31) and is in driving connection with the power distribution mechanism (32), the rotary pressing mechanism (4) comprises a plurality of groups of rotary pressing assemblies (41), at least one group of rotary pressing assemblies (41) is suitable for pressing the first sample blank (100) and avoiding the machining tool, and at least another group of rotary pressing assemblies (41) is suitable for pressing the second sample blank (200) and avoiding the machining tool.
9. The combined clamping device of a machining center according to claim 8, wherein the rotating and pressing assembly (41) comprises a rotating base (411), a rotating shaft (412) and a pressing plate (413), the rotating base (411) is arranged on the table body (31), the rotating shaft (412) is arranged on the rotating base (411) and is in driving connection with the power distribution mechanism (32) in the height direction of the worktable (3), the part of the rotating shaft (412) far away from the rotating base (411) is connected with the pressing plate (413), and the rotating shaft (412) is suitable for extending and retracting in the height direction of the worktable (3) and driving the pressing plate (413) to rotate on a plane perpendicular to the height direction of the worktable (3).
10. The machining center combined clamping device according to any one of claims 1 to 5, characterized by further comprising a cleaning mechanism (5), wherein the cleaning mechanism (5) comprises at least one cleaner (51) which is arranged on the table body (31) and is suitable for cleaning iron pieces, a part of the cleaner (51) far away from the table body (31) is provided with a rotating head (511), and the rotating head (511) is suitable for rotating on a plane perpendicular to the height direction of the workbench (3).
11. A machining method using the machining center combined clamping device according to any one of claims 1 to 10, comprising:
placing the sample blank on a first clamping mechanism (1) and a second clamping mechanism (2) of the machining center combined clamping device;
the first clamping mechanism (1) and the second clamping mechanism (2) detect and confirm whether the sample blank is placed completely;
a power distribution mechanism (32) of the machining center combined clamping device drives the first clamping mechanism (1) and the second clamping mechanism (2) to push and press the sample blank to a fixed position;
milling the sample blank according to a preset PLC program;
and the second clamping mechanism (2) rotates and avoids the machining tool until the sample blank is milled.
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| CN202210263141.7A CN114633135B (en) | 2022-03-17 | 2022-03-17 | Combined clamping method and device for machining center |
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| CN202210263141.7A CN114633135B (en) | 2022-03-17 | 2022-03-17 | Combined clamping method and device for machining center |
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Cited By (1)
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| CN114633135B (en) | 2024-06-25 |
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