CN115647497A

CN115647497A - Electrospark wire-electrode cutting machine capable of inhibiting cutting wire from snapping self-adaptive pressure

Info

Publication number: CN115647497A
Application number: CN202211463748.6A
Authority: CN
Inventors: 张庆; 张耿良
Original assignee: Shenzhen Liangqing Machinery Co ltd
Current assignee: Shenzhen Liangqing Machinery Co ltd
Priority date: 2022-11-19
Filing date: 2022-11-19
Publication date: 2023-01-31

Abstract

The invention provides an electric spark wire cutting machine capable of inhibiting cutting wire from stretching and breaking self-adaptive pressure, and relates to the technical field of electric spark wire cutting, the electric spark wire cutting machine comprises a machine body, a workbench, a wire frame and a wire conveying device, an adjusting support is sleeved on the surface of the wire frame, a tensioning device is arranged at one end of the adjusting support and comprises a mounting plate, an anti-stretching structure is arranged on the mounting plate, the anti-stretching structure comprises an anti-stretching wheel, an adaptive groove is formed in one side of the mounting plate, a spring and a sleeve column are respectively arranged in the adaptive groove and sleeved on the upper surface of the anti-stretching wheel, a tensioning sensor and an adjusting wheel are respectively arranged on one side of the mounting plate, when the cutting wire is tensioned and adjusted, the machine can be automatically stopped when the cutting wire is tensioned and is about to stretch, the cutting wire is prevented from stretching, and meanwhile, the tensioning of the cutting wire can be adjusted in a self-adaptive mode, so that the tensioning is kept on a set numerical value.

Description

Electrospark wire-electrode cutting machine capable of inhibiting cutting wire from snapping self-adaptive pressure

Technical Field

The invention relates to the technical field of wire cut electric discharge machines, in particular to a wire cut electric discharge machine capable of inhibiting cutting wire snapping self-adaptive pressure.

Background

A wire-cut electric discharge machine for machining the complex cavities and curved surfaces of various electric conductors such as hard alloy, quenched steel, graphite, aluminium alloy, structural steel, stainless steel, ti alloy and diamond, features use of computer control system, automatic Chinese drawing and programming, and control software.

According to the patent numbers: CN202010219828.1, a spark-erosion wire cutting machine, its technical scheme main points are: the utility model provides a spark-erosion wire cutting machine, including work piece mount pad, base, the horizontal sliding connection that are used for installing the work piece in the base slide the seat, set up in slide the seat and be used for cutting the line of cut of work piece, slide the seat be provided with the drive line of cut remove and realize cutting the actuating mechanism of work piece, be used for making the line of cut be the inclined cutting mechanism of tilt state and realization inclined plane cutting. The invention realizes that the cutting line inclines and obliquely cuts the workpiece in a space range, and simultaneously effectively avoids the problem of equipment abrasion caused by hard pulling of the cutting line.

The above description has been made on the wire electric discharge machine, but there are several problems when using wire electric discharge machining:

1. the tensioning force of the existing cutting wire needs to be adjusted along with the rotation of the wire conveying device, but the tensioning force of the existing cutting wire can cause the cutting wire to be stretched when the existing cutting wire is too tight, and the machine tool cannot be stopped before the cutting wire is stretched.

2. The tensioning force of the existing cutting line cannot be adjusted in a self-adaptive mode, and the tensioning force cannot be kept on a set value accurately.

Disclosure of Invention

Solves the technical problem

Aiming at the defects of the prior art, the invention provides the wire cut electric discharge machine capable of inhibiting the self-adaptive pressure of stretch breaking of the cutting wire, which can automatically stop when the cutting wire is tensioned and is about to stretch breaking when the cutting wire is tensioned and adjusted, prevent the cutting wire from stretching, and can self-adaptively adjust the tensioning of the cutting wire during cutting so as to keep the tensioning on a set value.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: restrain wire cut electrical discharge machining of cutting wire stretch-break self-adaptation pressure, including lathe bed, workstation, line frame and fortune traditional thread binding putting, the adjustment support has been cup jointed on the surface of line frame, the one end of adjustment support is equipped with overspeed device tensioner, overspeed device tensioner includes the mounting panel, be equipped with on the mounting panel and prevent the stretch-break structure, prevent the stretch-break structure including preventing the stretch-break wheel, the adaptation groove has been seted up to mounting panel one side, be equipped with spring and cover post in the adaptation groove respectively, and the cover post cup joints in the upper surface of preventing the stretch-break wheel, take-up pulley, tensioning sensor and regulating wheel are installed respectively to mounting panel one side.

Preferably, the mounting panel and adjusting bracket bolted connection, and the strengthening rib of mounting panel one end is the slope strengthening rib, and the strengthening rib and the adjusting bracket connection of mounting panel one end, and the contained angle between adjusting bracket and the mounting panel is 90.

Preferably, the rotating shaft of the anti-snap wheel is embedded in the adapting groove, one end of the rotating shaft of the anti-snap wheel is connected with a limiting plate in a shaft mode, the limiting plate is installed in an interface on the side face of the installing plate, the sleeve column is connected with one side of the installing plate, a stop button is installed between the two springs, and the stop button is aligned with the pressing end of the top face of the sleeve column.

Preferably, the anti-pinch-off wheel, the tensioning sensor and the adjusting wheel are located on the same horizontal plane, a display is arranged on the top surface of the wire frame, a connecting frame is arranged on the back surface of the mounting plate, and a movable support is embedded in the connecting frame.

Preferably, a screw rod is arranged in the connecting frame, one end of the movable support is sleeved on the surface of the screw rod, the movable support is in threaded connection with the surface of the screw rod, and the adjusting wheel is axially connected with the inner shaft of the interface of the movable support.

Preferably, the wire frame is embedded in a groove on the top surface of the adjusting support, an electromagnet and a limiting head are respectively installed in the groove on the top surface of the adjusting support, the electromagnet is attached to two sides of the wire frame, the electromagnet and two sides of the wire frame are magnetically attracted to each other, limiting grooves are respectively formed in two sides of the wire frame, the limiting head and the limiting grooves are matched with each other, and a scale mark is arranged on one side of the wire frame.

Preferably, a rack is arranged in a groove in the back of the wire rack, a gear is meshed with the surface of the rack, and a rotating shaft of the gear is connected with an interface of the adjusting bracket.

Advantageous effects

The invention provides a wire electric discharge machine capable of suppressing self-adaptive pressure of cutting wire snapping. Comprises the following

Has the beneficial effects that:

1. according to the invention, by adding the anti-snapping structure, the cutting wire is tightly attached to the anti-snapping wheel when the tensioning adjustment is carried out on the cutting wire, the anti-snapping wheel generates an upward force under the influence of the cutting wire, the sleeve column extrudes the spring when the upward force applied to the anti-snapping wheel is greater than the rebound value of the installed spring, and the pressing end on the sleeve column presses the tensioning device and the whole machine to stop when the stop button in the adaptive groove is pressed, so that the cutting wire can be prevented from snapping, and the machine can be stopped in time when the tensioning of the cutting wire is adjusted to the maximum value.

2. The invention can adaptively adjust the tension of the cutting line according to the situation in the cutting process, and monitors the tension on line through the tension sensor, the result is displayed above the display for a person to check, and the height of the adjusting wheel is adaptively adjusted along with the tension result displayed by the display, so that the tension is always maintained on the set value.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is an overall block diagram of the present invention;

FIG. 4 is a rear view of the present invention;

FIG. 5 is a schematic cross-sectional view of the present invention;

FIG. 6 is an enlarged view of A of FIG. 5;

FIG. 7 is an exploded view of the present invention;

FIG. 8 is a diagram of the tensioner routing structure of the present invention.

Wherein, 1, a lathe bed; 2. a work table; 3. a bobbin; 31. scale mark; 32. adjusting the bracket; 33. a limiting groove; 34. a limiting head; 35. an electromagnet; 36. a rack; 37. a gear; 4. a tensioning device; 41. Mounting a plate; 42. a snap-off prevention structure; 421. a snap-off prevention wheel; 422. an adaptation groove; 423. a limiting plate; 424. A spring; 425. sleeving a column; 426. a shutdown button; 43. a tension wheel; 44. a tension sensor; 45. A display; 46. a connecting frame; 47. a screw rod; 48. moving the support; 49. an adjustment wheel; 5. a wire conveying device.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 8, the wire-cut electric discharge machine for suppressing cutting wire stretch-breaking adaptive pressure comprises a machine body 1, a workbench 2, a wire frame 3 and a wire conveying device 5, wherein an adjusting support 32 is sleeved on the surface of the wire frame 3, a tensioning device 4 is arranged at one end of the adjusting support 32, the tensioning device 4 comprises a mounting plate 41, the mounting plate 41 is in bolted connection with the adjusting support 32, reinforcing ribs at one end of the mounting plate 41 are inclined reinforcing ribs, the reinforcing ribs at one end of the mounting plate 41 are connected with the adjusting support 32, an included angle between the adjusting support 32 and the mounting plate 41 is 90 °, a stretch-breaking prevention structure 42 is arranged on the mounting plate 41, the wire-cut electric discharge machine comprises the machine body 1, the workbench 2, the wire frame 3, the tensioning device 4 and the wire conveying device 5, the cutting wire for cutting is tensioned by the tensioning device 4, the tension of the cutting wire can be protected by the stretch-breaking prevention structure 42 when the cutting wire is tensioned, and the cutting wire is prevented from being stretched and broken due to overlarge tension.

The anti-snap structure 42 includes an anti-snap wheel 421, the cutting line is attached to the lower surface of the anti-snap wheel 421, when the cutting line is tensioned and adjusted, the cutting line is tightly attached to the anti-snapping wheel 421, at the moment, the anti-snapping wheel 421 is influenced by the cutting line to generate an upward force, an adapting groove 422 is formed in one side of the mounting plate 41, a spring 424 and a sleeve column 425 are respectively arranged in the adapting groove 422, the sleeve column 425 is sleeved on the upper surface of the anti-snapping wheel 421, a rotating shaft of the anti-snapping wheel 421 is embedded in the adapting groove 422, a limiting plate 423 is axially connected to one end of the rotating shaft of the anti-snapping wheel 421, the limiting plate 423 is arranged in an interface on the side surface of the mounting plate 41, the sleeve column 425 is connected with one side of the mounting plate 41, the adapting groove 422 limits the rotating shaft of the anti-snapping wheel 421, when the tension of the cutting wire is too large, the cutting wire pulls the anti-snapping wheel 421 upwards, so that the rotating shaft of the anti-snapping wheel 421 slightly rises in the adapting groove 422, the rotating shaft of the anti-snapping wheel 421 is connected with the limiting plate 423 in a shaft-joint manner, one end of the sleeve column 425 is connected with the limiting plate 423, the limiting plate 423 can move along the mounting opening on the mounting plate 41 to limit the anti-snapping wheel 421, the stop button 426 is mounted between the two springs 424, the stop button 426 is aligned with the pressing end of the top surface of the sleeve column 425, the sleeve column 425 is arranged on the upper surface of the rotating shaft of the anti-snapping wheel 421, the anti-snapping wheel 421 can rotate along the inner wall of the sleeve column 425, and the sleeve column 425 is connected with the adapting groove 422 through the springs 424, when the anti-snapping wheel 421 is subjected to an upward force greater than the rebound value of the mounting spring 424, the sleeve column 425 presses the spring 424, and the pressing end on the sleeve column 425 presses the tensioning device 4 and the machine integrally stops by the stop button 426 in the adapting groove 422, thus preventing the snapping of the string and stopping the machine in time when the tension of the string is adjusted to the maximum value.

The second embodiment:

as shown in fig. 1 to 8, a tension wheel 43, a tension sensor 44 and an adjusting wheel 49 are respectively installed on one side of the installation plate 41, the anti-stretch-breaking wheel 421, the tension wheel 43, the tension sensor 44 and the adjusting wheel 49 are all located on the same horizontal plane, a display 45 is arranged on the top surface of the wire frame 3, two tension wheels 43, two tension sensors 44, two adjusting wheels 49 and one anti-stretch-breaking wheel 421 are respectively arranged on the tension device 4, the path of the cutting wire along the routing of the tension device 4 can be checked as shown in fig. 8, the tension force of the cutting wire can be adjusted through height adjustment of the adjusting wheel 49, the tension force of the cutting wire can be adjusted in an adaptive mode according to conditions in the cutting process, the tension sensor 44 is used for online monitoring of the tension force, the result is displayed above the display 45 for a person to check, and the height of the adjusting wheel 49 is adjusted in an adaptive mode according to the tension result displayed by the display 45, so that the tension force is always maintained on the set value.

The back of the mounting plate 41 is provided with a connecting frame 46, a movable support 48 is embedded in the connecting frame 46, a screw rod 47 is arranged in the connecting frame 46, one end of the movable support 48 is sleeved on the surface of the screw rod 47, the movable support 48 is in threaded connection with the surface of the screw rod 47, an adjusting wheel 49 is in threaded connection with the interface of the movable support 48, the adjusting wheel 49 is connected with the movable support 48 in the connecting frame 46, a motor is additionally arranged and is connected with the screw rod 47 in the connecting frame 46, and the screw rod 47 rotates to enable the height of the movable support 48 to be adjusted so as to drive the adjusting wheel 49 to achieve self-adaptive adjustment of the tension of the cutting line.

Example three:

as shown in fig. 1-8, the wire frame 3 is embedded in a groove on the top surface of the adjusting bracket 32, an electromagnet 35 and a limiting head 34 are respectively installed in the groove on the top surface of the adjusting bracket 32, the electromagnet 35 is attached to both sides of the wire frame 3, the electromagnet 35 and both sides of the wire frame 3 are magnetically attracted to each other, both sides of the wire frame 3 are respectively provided with a limiting groove 33, the limiting head 34 is matched with the limiting groove 33, the adjusting bracket 32 is moved to limit the position of the adjusting bracket, the electromagnet 35 is attached to both sides of the wire frame 3, when the electromagnet 35 is controlled by a person to be powered on, the electromagnet 35 is magnetically attracted to both sides of the wire frame 3 to fix the adjusting bracket 32, when the adjusting is performed, the electromagnet 35 is directly powered off, one side of the wire frame 3 is provided with a scale 31, when the machine is started, a worker can firstly move the adjusting bracket 32 on the surface of the wire frame 3 along the wire frame 3 so as to enable the cutting end of the cutting line on the adjusting bracket 32 to be positioned at a required height, one side of the wire frame 3 is provided with a scale mark 31, the height of the adjusting bracket 32 can be conveniently checked by the worker through a scale meter, the worker can conveniently adjust the height, a rack 36 is arranged in a groove on the back surface of the wire frame 3, a gear 37 is meshed with the surface of the rack 36, the rotating shaft of the gear 37 is connected with an interface of the adjusting bracket 32, the adjusting bracket 32 can be automatically adjusted through the transmission mode of the gear 37 and the rack 36, a motor is additionally arranged on the connecting end of the gear 37 and is connected with the adjusting bracket 32, the gear 37 is mutually meshed with the rack 36 on the back surface of the wire frame 3, the gear 37 can be adjusted in height along the rack 36 when the gear 37 is driven by the rotating end of the motor, and the control precision of the adjusting bracket 32 is improved, the structure cost and the later maintenance cost are low.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.

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

1. Restrain wire cut electrical discharge machining of cutting wire stretch-breaking self-adaptation pressure, including lathe bed (1), workstation (2), line frame (3) and fortune line device (5), its characterized in that: adjustment support (32) have been cup jointed on the surface of line frame (3), the one end of adjustment support (32) is equipped with overspeed device tensioner (4), overspeed device tensioner (4) are including mounting panel (41), be equipped with on mounting panel (41) and prevent that stretch out disconnected structure (42), prevent that stretch out disconnected structure (42) are including preventing that stretch out disconnected wheel (421), adaptation groove (422) have been seted up to mounting panel (41) one side, be equipped with spring (424) and set post (425) in adaptation groove (422) respectively, and set post (425) cup joint in the upper surface of preventing that stretch out disconnected wheel (421), take-up pulley (43), tensioning sensor (44) and regulating wheel (49) are installed respectively to mounting panel (41) one side.

2. The wire-cut electric discharge machine suppressing adaptive pressure of cutting wire snapping according to claim 1, wherein: mounting panel (41) and adjusting bracket (32) bolted connection, and the strengthening rib of mounting panel (41) one end is the slope strengthening rib, and the strengthening rib of mounting panel (41) one end is connected with adjusting bracket (32), and the contained angle between adjusting bracket (32) and mounting panel (41) is 90.

3. The wire-cut electric discharge machine capable of suppressing adaptive pressure of cutting wire snapping according to claim 1, wherein: the rotating shaft of the anti-snapping wheel (421) is embedded in the adapting groove (422), one end of the rotating shaft of the anti-snapping wheel (421) is connected with a limiting plate (423) in a shaft mode, the limiting plate (423) is installed in an interface on the side face of the installing plate (41), the sleeve column (425) is connected with one side of the installing plate (41), a stop button (426) is installed between the two springs (424), and the stop button (426) is aligned with a pressing end of the top face of the sleeve column (425).

4. The wire-cut electric discharge machine suppressing adaptive pressure of cutting wire snapping according to claim 1, wherein: the anti-pinch-off wheel (421), the tensioning wheel (43), the tensioning sensor (44) and the adjusting wheel (49) are all located on the same horizontal plane, a display (45) is arranged on the top surface of the wire frame (3), a connecting frame (46) is arranged on the back surface of the mounting plate (41), and a movable support (48) is embedded in the connecting frame (46).

5. The wire-cut electric discharge machine capable of suppressing adaptive pressure of cutting wire snapping according to claim 4, wherein: the connecting frame (46) is internally provided with a screw rod (47), one end of a moving support (48) is sleeved on the surface of the screw rod (47), the moving support (48) is in threaded connection with the surface of the screw rod (47), and an adjusting wheel (49) is in threaded connection with the interface of the moving support (48).

6. The wire-cut electric discharge machine suppressing adaptive pressure of cutting wire snapping according to claim 1, wherein: the wire rack (3) is embedded in a groove in the top surface of the adjusting support (32), an electromagnet (35) and a limiting head (34) are respectively installed in the groove in the top surface of the adjusting support (32), the electromagnet (35) is attached to two sides of the wire rack (3), the electromagnet (35) and two sides of the wire rack (3) are magnetically attracted to each other, limiting grooves (33) are respectively formed in two sides of the wire rack (3), the limiting head (34) is matched with the limiting grooves (33), and scale marks (31) are arranged on one side of the wire rack (3).

7. The wire-cut electric discharge machine suppressing adaptive pressure of cutting wire snapping according to claim 6, wherein: a rack (36) is arranged in a groove in the back of the wire rack (3), a gear (37) is meshed with the surface of the rack (36), and a rotating shaft of the gear (37) is connected with an interface of the adjusting bracket (32) in an inner mode.