CN112809110A - High-efficient numerical control plane drilling machine with fast wire moving machine tool - Google Patents

High-efficient numerical control plane drilling machine with fast wire moving machine tool Download PDF

Info

Publication number
CN112809110A
CN112809110A CN201911121244.4A CN201911121244A CN112809110A CN 112809110 A CN112809110 A CN 112809110A CN 201911121244 A CN201911121244 A CN 201911121244A CN 112809110 A CN112809110 A CN 112809110A
Authority
CN
China
Prior art keywords
drilling machine
machine tool
fast wire
fast
limiting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911121244.4A
Other languages
Chinese (zh)
Inventor
王建时
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaoyou Hongma Steel Structure Engineering Co ltd
Original Assignee
Gaoyou Hongma Steel Structure Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gaoyou Hongma Steel Structure Engineering Co ltd filed Critical Gaoyou Hongma Steel Structure Engineering Co ltd
Priority to CN201911121244.4A priority Critical patent/CN112809110A/en
Publication of CN112809110A publication Critical patent/CN112809110A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H5/00Combined machining
    • B23H5/04Electrical discharge machining combined with mechanical working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00Auxiliary apparatus or details, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention discloses a high-efficiency numerical control plane drilling machine with a fast wire moving machine tool, which belongs to the technical field of high-efficiency numerical control plane drilling machines and comprises a base, wherein the top of the base is sequentially provided with a drilling machine and the fast wire moving machine tool from left to right, the bottoms of movable sleeves at the left side and the right side are respectively provided with a telescopic device, the bottom of the telescopic device at the left side is provided with a drilling device, the bottom of the telescopic device at the right side is provided with a fast wire moving cutting device, the tops of the drilling machine and the fast wire moving machine tool are provided with a driving mechanism and a clamping piece, a workpiece to be processed is clamped and fixed through the clamping piece, the clamping piece can be driven to move left and right through the driving mechanism, when the workpiece needs to be drilled, the clamping piece is driven to drive the drilling machine tool through the driving mechanism, when the workpiece needs to be cut by fast wire moving, the clamping piece, the movable support is not required to be detached again, transferred and fixed, and the working efficiency is greatly improved.

Description

High-efficient numerical control plane drilling machine with fast wire moving machine tool
Technical Field
The invention relates to the technical field of efficient numerical control plane drilling machines, in particular to an efficient numerical control plane drilling machine with a fast wire moving machine tool.
Background
At present, workpieces used in buildings need to be drilled by a numerical control plane drilling machine, and meanwhile, after passing through the numerical control plane drilling machine, the existing partial plate-shaped workpieces need to be transferred to a fast wire-moving machine tool to perform operations such as inclined hole cutting, so that the workpiece machining efficiency is greatly reduced, time and labor are wasted, and therefore, the efficient numerical control plane drilling machine with the fast wire-moving machine tool is provided.
Disclosure of Invention
The invention aims to provide an efficient numerical control plane drilling machine with a fast wire moving machine tool, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency numerical control plane drilling machine with a fast wire moving machine tool comprises a base, wherein longitudinal blocks are welded on the outer walls of the left side and the right side of the base, the tops of the longitudinal blocks are provided with matched limiting sliders through longitudinal sliding grooves, the rear sides of the longitudinal blocks are inserted with screw rods, the front ends of the screw rods are movably connected with the inner walls of the front sides of the longitudinal sliding grooves through bearings, the limiting sliders are sleeved on the outer walls of the screw rods in a threaded manner, the rear ends of the outer walls of the screw rods are sleeved with driven sprockets, the middle part of the outer wall of the rear side of the base is provided with a servo motor I, the output end of the servo motor I is provided with a driving sprocket, the driving sprocket is connected with two groups of driven sprockets on the left side and the right side through chain transmission, the tops of the limiting sliders on the left side and, all the cover in guide arm outer wall left and right sides is equipped with the movable sleeve, controls the side the carriage top is all fixed and is provided with the connecting block, and controls the relative one end of side connecting block and all is provided with fixed pneumatic cylinder, and is two sets of the movable sleeve top all is provided with inserts, the left side fixed pneumatic cylinder output is connected through the left side that the piston rod was inserted with the left side, the right side fixed pneumatic cylinder output is connected through the right side that the piston rod was inserted with the right side, controls the side the movable sleeve bottom all is provided with the telescoping device, the left side the telescoping device bottom is provided with drilling equipment, the right side the telescoping device bottom is provided with fast away silk cutting device, the drilling machine is provided with actuating mechanism with fast.
Further, actuating mechanism is including fixed setting at drilling machine top left side and the mounting panel on quick walking machine top right side, and is two sets of the equal activity of front and back end between the mounting panel is provided with lead screw, right side the right side outer wall central authorities of mounting panel are provided with servo motor two, two outputs of servo motor run through the right side mounting panel and have cup jointed drive sprocket, the front and back side the outer wall right-hand member of lead screw all is equipped with driven sprocket, and drive sprocket passes through chain drive with front and back side driven sprocket and is connected.
Further, the holder includes two sets of screw thread sleeves, and is two sets of the screw thread sleeve is respectively the screw thread cup joint the left end at front and back side lead screw, the front and back side the supporting shoe has all been welded at screw thread sleeve's top, the front and back side the supporting shoe is carried on the back mutually the equal screw thread of one side and is pegged graft and have adjusting screw, the front and back side the relative one end of adjusting screw all has the grip block through bearing swing joint, the grip block is close to the equal fixed spacing guide arm that is provided with of one side left and right-hand member of supporting shoe, and the.
Furthermore, the right end of the outer wall of the screw rod at the front side and the rear side is fixedly sleeved with a limiting nut, and the limiting nut is positioned at the left side of the driven chain wheel.
Furthermore, the front side and the rear side are provided with a protective pad at one end opposite to the clamping plate, the protective pad is a rubber protective pad, and anti-skid lines are arranged on one side opposite to the front side protective pad and the rear side protective pad.
Furthermore, the inner walls of the front side and the rear side of the movable sleeve are respectively provided with a limiting slide block, and the inner walls of the front side and the rear side of the guide rod are respectively transversely provided with a transverse limiting slide groove matched with the limiting slide blocks.
Compared with the prior art, the invention has the beneficial effects that: the workpiece to be machined is clamped and fixed through the clamping piece, the clamping piece can be driven to move left and right through the driving mechanism, when the workpiece needs to be drilled, the clamping piece is driven to drive the workpiece to a drilling machine through the driving mechanism, when the workpiece needs to be subjected to fast-wire-feeding cutting, the workpiece is driven to drive the workpiece to the fast-wire-feeding machine tool through the driving mechanism, the workpiece does not need to be dismounted, transferred and fixed again, the working efficiency is greatly improved, meanwhile, the servo motor I, the driving chain wheel, the driven chain wheel, the chain, the screw and the limiting slide block are matched to drive the supporting frame to drive the guide rod to adjust the position forwards and backwards, the insert block is driven through the fixed hydraulic cylinder to drive the movable sleeve to adjust the guide rod leftwards and rightwards, the drilling or fast-wire-feeding cutting at the designated position on the workpiece is facilitated.
Drawings
FIG. 1 is a rear view of the structure of the present invention;
fig. 2 is a top view of the driving mechanism of the present invention.
In the figure: 1. a base; 2. a longitudinal block; 3. a limiting slide block; 4. a support frame; 5. a guide bar; 6. fixing a hydraulic cylinder; 7. a movable sleeve; 8. an insert; 9. a telescoping device; 10. drilling machine; 11. a first servo motor; 12. a fast wire moving machine tool; 13. a screw; 14. a drive mechanism; 141. mounting a plate; 142. a servo motor II; 143. a limit nut; 144. a lead screw; 15. a clamping member; 151. a threaded sleeve; 152. a support block; 153. adjusting the screw rod; 154. a clamping plate; 155. limiting guide rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a high-efficiency numerical control plane drilling machine with a fast wire moving machine tool is disclosed, please refer to fig. 1, and comprises a base 1, wherein longitudinal blocks 2 are welded on the outer walls of the left side and the right side of the base 1, the longitudinal blocks 2 are welded on the outer wall of the base 1 to play a supporting role, the tops of the longitudinal blocks 2 are provided with matched limiting sliders 3 through longitudinal sliding grooves, the longitudinal sliding grooves limit and guide the movement of the limiting sliders 3, the rear sides of the longitudinal blocks 2 are inserted with screws 13, the front ends of the screws 13 are movably connected with the inner walls of the front sides of the longitudinal sliding grooves through bearings, the screws 13 are used for driving the limiting sliders 3 to move forwards or backwards in the longitudinal sliding grooves, the limiting sliders 3 are sleeved on the outer walls of the screws 13 in a threaded manner, the rear ends of the outer walls of the screws 13 are sleeved with driven sprockets, the middle part of the outer walls of the rear sides of the base 1, the output end of the servo motor I11 is provided with a driving chain wheel, and the driving chain wheel is in transmission connection with the left and right driven chain wheels through chains, so that the left and right screw rods 13 synchronously rotate;
referring to fig. 1, the top of the left and right side limiting sliders 3 is provided with a support frame 4, the top of the base 1 is provided with a drilling machine 10 and a fast wire moving machine 12 from left to right in sequence, the drilling machine 10 and the fast wire moving machine 12 are attached together at one side opposite to each other, the drilling machine 10 and the fast wire moving machine 12 can be fixed at the top of the base 1 by adopting a screw or bolt fixing mode, a guide rod 5 is transversely arranged at the top between the two sets of support frames 4, the left and right sides of the outer wall of the guide rod 5 are both sleeved with a movable sleeve 7, the top of the, the opposite ends of the left and right connecting blocks are provided with fixed hydraulic cylinders 6, the tops of the two groups of movable sleeves 7 are provided with inserts 8, the output end of the left fixed hydraulic cylinder 6 is connected with the left side of the left insert 8 through a piston rod, the output end of the right fixed hydraulic cylinder 6 is connected with the right side of the right insert 8 through a piston rod, and the fixed hydraulic cylinder 6 is used for driving the movable sleeves 7 to slide on the guide rod 5 to adjust the position;
referring to fig. 1, the bottom of each of the left and right movable sleeves 7 is provided with a telescopic device 9, the telescopic devices 9 are widely used in the field, such as an air cylinder, a hydraulic cylinder, etc., the structure and principle of which are well known to those skilled in the art, and not described in detail herein, the bottom of the left telescopic device 9 is provided with a drilling device, which is widely used in the field, including a driving motor, a drill bit, etc., because it does not belong to the technical characteristics of the present invention, and is disclosed in the prior art, and not described in detail herein, the bottom of the right telescopic device 9 is provided with a fast wire cutting device, which is widely used in the field, such as "a diagonal hole cutter structure of a fast wire machine tool" proposed in patent No. CN201621090076.9, "which includes a machine tool body and a wire electrode for machining a diagonal hole on a workpiece, the inclination angle of the wire electrode is adjustable, a tool setting tool is arranged between the workpiece and the wire electrode, the tool setting tool is detachably connected with the machine tool body, the workpiece is assembled on the tool setting tool, and the assembly angle of the workpiece can be adjusted, so that the tool setting tool is not a technical feature of the invention and is disclosed in the prior art, and the detailed description is not needed;
referring to fig. 1, a driving mechanism 14 is disposed on the top of the drilling machine 10 and the fast wire moving machine 12, a clamping member 15 is disposed on the top of the driving mechanism 14, the driving mechanism 14 is used for adjusting the position of a workpiece to be machined, and the clamping member 15 is used for fixing the workpiece to be machined.
As shown in fig. 2: the driving mechanism 14 comprises mounting plates 141 fixedly arranged on the left side of the top of the drilling machine 10 and on the right side of the top of the fast wire moving machine tool 12, and can adopt a screw or bolt fixing mode, screw rods 144 are movably arranged at the front end and the rear end between the two mounting plates 141, the screw rods 144 are movably connected with the outer walls of the mounting plates 141 on the left side and the right side through bearings on the left end and the right end, a servo motor II 142 is arranged in the center of the outer wall on the right side of the mounting plate 141, the servo motor II 142 can be fixed in the center of the outer wall on the right side of the mounting plate 141 through a screw or bolt fixing mode, the output end of the servo motor II 142 penetrates through the mounting plate 141 on the right side and is sleeved with a driving sprocket, the right ends;
as shown in fig. 2: the clamping part 15 comprises two groups of threaded sleeves 151, the two groups of threaded sleeves 151 are respectively in threaded sleeve joint at the left ends of the front and rear threaded sleeves 144, after a workpiece is clamped, the threaded sleeves 151 are driven to move by the rotation of the threaded sleeves 144, supporting blocks 152 are welded at the tops of the front and rear threaded sleeves 151, adjusting screws 153 are inserted into opposite sides of the front and rear supporting blocks 152 in a threaded manner, the adjusting screws 153 are used for adjusting the positions of the clamping plates 154, the clamping plates 154 are movably connected at opposite ends of the front and rear adjusting screws 153 through bearings, driving handwheels for users to rotate are welded at opposite ends of the front and rear adjusting screws 153, the clamping plates 154 at the front and rear sides are matched to stably clamp the workpiece, the stability of the workpiece during processing is ensured, the subsequent processing quality and accuracy of the workpiece are further ensured, limit guide rods 155 are fixedly arranged at the left and right ends of the clamping plates 154 close to the supporting blocks 152, the limiting guide rod 155 ensures the stability of the clamping plate 154 driven by the adjusting screw 153 to move, and deflection cannot occur;
as shown in fig. 2: the limiting nut 143 is fixedly sleeved at the right end of the outer wall of the front and rear screw rods 144, the limiting nut 143 is positioned at the left side of the driven sprocket, the limiting nut 143 can be fixed on the outer wall of the screw rods 144 in a welding mode, and other fixing modes can also be adopted, the limiting nut 143 is used for limiting the moving range of the clamping piece 15, so that the clamping piece cannot contact with the driven sprocket or a chain and the like, the use safety is ensured, and the limiting effect is achieved;
as shown in fig. 1: the opposite ends of the front and rear clamping plates 154 are respectively provided with a protective pad, the protective pads are rubber protective pads, on one hand, damage to a workpiece caused by overlarge clamping force is avoided by adopting the rubber protective pads, on the other hand, vibration generated when the workpiece is drilled and cut by fast-moving wires can be well reduced, the processing quality of the workpiece is further ensured, the opposite sides of the front and rear protective pads are respectively provided with anti-skid lines, the anti-skid lines are widely applied in the field, and the clamping performance of the workpiece is improved;
as shown in fig. 1: the inner walls of the front side and the rear side of the movable sleeve 7 are respectively provided with a limiting slide block (not shown in the figure), the inner walls of the front side and the rear side of the guide rod 5 are respectively and transversely provided with a transverse limiting slide groove matched with the limiting slide blocks, the matching of the limiting slide blocks and the limiting slide grooves ensures that the fixed hydraulic cylinder 6 can not rotate when pushing the insert 8 to drive the sliding adjusting position of the movable sleeve 7, the stable linear motion is ensured, and the guiding and limiting effects are achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a high-efficient numerical control plane drilling machine with fast walking silk lathe, includes base (1), its characterized in that: the outer walls of the left side and the right side of the base (1) are all welded with longitudinal blocks (2), the tops of the longitudinal blocks (2) are provided with matched limiting sliding blocks (3) through longitudinal sliding grooves, the rear sides of the longitudinal blocks (2) are connected with screw rods (13) in an inserted mode, the front ends of the screw rods (13) are movably connected with the inner walls of the front sides of the longitudinal sliding grooves through bearings, the limiting sliding blocks (3) are in threaded sleeve connection with the outer walls of the screw rods (13), the rear ends of the outer walls of the screw rods (13) are sleeved with driven sprockets, the middle part of the outer wall of the rear side of the base (1) is provided with a servo motor I (11), the output end of the servo motor I (11) is provided with a driving sprocket, the driving sprocket is connected with two groups of driven sprockets on the left side and the right side through chain transmission, the tops of the limiting sliding blocks (3) on the left, the top between two groups of the supporting frames (4) is transversely provided with a guide rod (5), the left and right sides of the outer wall of the guide rod (5) are respectively sleeved with a movable sleeve (7), the tops of the supporting frames (4) on the left and right sides are respectively and fixedly provided with a connecting block, one end of the connecting block on the left and right sides opposite to the connecting block is respectively provided with a fixed hydraulic cylinder (6), the tops of the two groups of the movable sleeves (7) are respectively provided with an insert (8), the output end of the fixed hydraulic cylinder (6) on the left side is connected with the left side of the insert (8) on the left side through a piston rod, the output end of the fixed hydraulic cylinder (6) on the right side is connected with the right side of the insert (8) on the right side through a piston rod, the bottoms of the movable sleeves (7) on the left and right sides are respectively provided with a telescopic device (9), the bottoms of, and a clamping piece (15) is arranged at the top of the driving mechanism (14).
2. The efficient numerically-controlled planar drilling machine with the fast wire-moving machine tool according to claim 1, wherein: actuating mechanism (14) are including fixed mounting panel (141) that set up on drilling machine (10) top left side and fast walk a lathe (12) top right side, two sets of the equal activity of preceding rear end between mounting panel (141) is provided with lead screw (144), right side the right side outer wall central authorities of mounting panel (141) are provided with servo motor two (142), servo motor two (142) outputs run through right side mounting panel (141) and have cup jointed drive sprocket, the front and back side the outer wall right-hand member of lead screw (144) all is equipped with driven sprocket, and drive sprocket passes through chain drive with front and back side driven sprocket and is connected.
3. The efficient numerically-controlled planar drilling machine with the fast wire-moving machine tool according to claim 1, wherein: the clamping part (15) comprises two groups of threaded sleeves (151), the threaded sleeves (151) are respectively in threaded sleeve joint at the left ends of front and rear side screws (144), supporting blocks (152) are welded at the tops of the threaded sleeves (151), the front and rear sides are respectively provided with an adjusting screw (153) in a threaded insertion mode, the front and rear sides are respectively connected with one side of each supporting block (152) back to back, the relative end of the adjusting screw (153) is respectively and movably connected with a clamping plate (154) through a bearing, a limiting guide rod (155) is fixedly arranged at the left end and the right end of one side of each clamping plate (154) close to the supporting block (152), and one end of each limiting guide rod (155), far away from the clamping plate (154.
4. The efficient numerically-controlled planar drilling machine with the fast wire-moving machine tool according to claim 2, wherein: and the right end of the outer wall of the screw rod (144) at the front side and the rear side is fixedly sleeved with a limiting nut (143), and the limiting nut (143) is positioned at the left side of the driven chain wheel.
5. The efficient numerically-controlled planar drilling machine with the fast wire-moving machine tool according to claim 3, wherein: front and back side the relative one end of grip block (154) all is provided with the protection and fills up, and the protection fills up for the rubber protection and fills up, and the front and back side protection is filled up relative one side and all is provided with anti-skidding line.
6. The efficient numerically-controlled planar drilling machine with the fast wire-moving machine tool according to claim 1, wherein: the inner walls of the front side and the rear side of the movable sleeve (7) are respectively provided with a limiting sliding block, and the inner walls of the front side and the rear side of the guide rod (5) are respectively transversely provided with a transverse limiting sliding groove matched with the limiting sliding blocks.
CN201911121244.4A 2019-11-15 2019-11-15 High-efficient numerical control plane drilling machine with fast wire moving machine tool Pending CN112809110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911121244.4A CN112809110A (en) 2019-11-15 2019-11-15 High-efficient numerical control plane drilling machine with fast wire moving machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911121244.4A CN112809110A (en) 2019-11-15 2019-11-15 High-efficient numerical control plane drilling machine with fast wire moving machine tool

Publications (1)

Publication Number Publication Date
CN112809110A true CN112809110A (en) 2021-05-18

Family

ID=75852891

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911121244.4A Pending CN112809110A (en) 2019-11-15 2019-11-15 High-efficient numerical control plane drilling machine with fast wire moving machine tool

Country Status (1)

Country Link
CN (1) CN112809110A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115570172A (en) * 2022-11-18 2023-01-06 国网山东省电力公司昌邑市供电公司 Block terminal processing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115570172A (en) * 2022-11-18 2023-01-06 国网山东省电力公司昌邑市供电公司 Block terminal processing equipment

Similar Documents

Publication Publication Date Title
CN104249196B (en) Track shoe pin hole machining equipment
CN212705518U (en) Clamping device with adjustable lathe processing is with just dismouting
CN213351590U (en) Perforating device for machining
CN211640305U (en) A cutting device for yellow bamboo deep-processing
CN112809110A (en) High-efficient numerical control plane drilling machine with fast wire moving machine tool
CN211516333U (en) High-efficient numerical control plane drilling machine with fast wire moving machine tool
CN219520573U (en) Angle steel drilling machine convenient for clamping and drilling adjustment
CN218050383U (en) Adjustable cutter is used in processing of deep groove ball bearing
CN105127497A (en) Vertical grooving machine
CN1938121A (en) Device and method for machining long workpieces fixed between two rotating bearings
CN212857908U (en) Vertical and horizontal milling combined machine tool special for T-shaped guide rail of elevator
CN108941664A (en) A kind of chain piece machining center
CN211360256U (en) Truss production and processing is with punch press that has a anchor clamps that can fix a position
CN211869387U (en) Shaft wheel balance parallel adjusting device for two-shaft four-wheel machine
CN211991115U (en) Equipment for machining motor shaft
CN210548225U (en) Device of drilling in biax duplex position
CN211564558U (en) Drilling machine for machine-building
CN210615910U (en) Tool changing device for milling machine
CN103521838B (en) A kind of vertical saw
CN218051285U (en) Boring combined machine
CN210498512U (en) Bench drilling machine capable of quickly positioning milling groove
CN219310743U (en) Elbow joint machined part
CN214353014U (en) Bidirectional knife rest of keyway planer
CN219818085U (en) Drilling device for rear axle box
CN112170906A (en) High-efficient stable numerically controlled fraise machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20210518

WD01 Invention patent application deemed withdrawn after publication