A gantry type wire cutting machine tool

Abstract

The application relates to the technical field of gantry wire cutting machine tools, in particular to a gantry wire cutting machine tool which comprises a base, the base is provided with a gantry walking frame, the gantry walking frame is provided with a transmission mechanism in a matched mode, the outer wall of a supporting plate is provided with an arc-shaped frame, the arc-shaped frame is provided with a rotating shaft through bearings, the outer wall of the rotating shaft is provided with a directional wheel, the outer wall of the supporting plate is provided with a spring telescopic piece, one end of the spring telescopic piece is provided with a bent plate, the slotted area of the bent plate is provided with a tight wheel through a shaft body, the tight wheel is located on the upper side of the directional wheel, the spring telescopic piece, the bent plate and the tight wheel are linked and designed, when the cutting wire is loose, the cutting wire can be automatically tensioned, the cutting section can always keep stable tension, the accumulation of processing errors caused by insufficient tension can be avoided, the cutting precision is obviously improved, and the gantry wire cutting machine tool is especially suitable for long-stroke and high-precision processing scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gantry wire cutting machine tools, in particular to a gantry wire cutting machine tool. BACKGROUND

[0002] The gantry wire cutting machine tool is a kind of machine tool that uses a moving thin metal wire (molybdenum wire or brass wire) as an electrode to produce discharge between the electrode and the workpiece under the action of a pulse power source to realize high-precision cutting of a two-dimensional or three-dimensional profile.

[0003] The patent for invention with the publication number CN216680603U discloses a wire cutting electrode wire tensioning device. The device drives the installation block to move by rotating the threaded rod, and the installation block moves to tension the electrode wire on one side, effectively ensuring that the electrode wire with sufficient tension force performs the cutting action.

[0004] However, the above-mentioned wire cutting machine tool needs manual tensioning adjustment of the electrode cutting wire when tensioning, which makes the tensioning adjustment of the electrode wire inconvenient during processing, and manual adjustment is prone to over-tensioning and electrode wire breakage, which makes the tensioning structure complicated and time-consuming in actual application, and the tensioning effect is general. SUMMARY

[0005] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] In view of the above-mentioned problem of manual tensioning of the wire cutting wire, the present application is proposed.

[0007] Therefore, the purpose of the present application is to provide a gantry wire cutting machine tool.

[0008] To solve the above-mentioned technical problems, the present application provides the following technical solutions: a gantry wire cutting machine tool, comprising a base, the base is provided with a gantry walking frame, the gantry walking frame is provided with a transmission mechanism, the transmission mechanism is provided with a wire collecting mechanism, and a wire feeding mechanism is installed on one side of the bottom of the gantry walking frame.

[0009] The output end bottom side of the transmission mechanism is provided with a support plate, the outer wall of the support plate is provided with an arc-shaped frame, the arc-shaped frame is provided with a rotating shaft through a bearing, the outer wall of the rotating shaft is provided with a directional wheel, the outer wall of the support plate is provided with a spring telescopic piece, one end of the spring telescopic piece is provided with a bent plate, the slotted area of the bent plate is provided with a tight wheel through a shaft body, and the tight wheel is located above one side of the directional wheel.

[0010] As a preferred scheme of the gantry type wire cutting machine tool, the directional wheel guides the unidirectional wire, so that the wire between the directional wheel and the wire feeding mechanism is in a vertical state, and the wire between the directional wheel and the tight wheel is in a tight state.

[0011] As a preferred scheme of the gantry type wire cutting machine tool, the side wall of the bending plate is provided with an extension plate, the outer wall of the support plate is provided with a parallel fixing plate on one side of the extension plate, the outer wall of the parallel fixing plate is provided with a pressing spring, and one end of the pressing spring is provided with a pressing block.

[0012] As a preferred scheme of the gantry type wire cutting machine tool, the pressing block of the pressing spring is pressed against the outer wall of the extension plate, and the pressing block and the extension plate are provided with convex points with large friction coefficients on the pressing surfaces, so that the extension plate is limited to move by the pressing block.

[0013] As a preferred scheme of the gantry type wire cutting machine tool, the outer wall of the pressing block is provided with a movable connecting rod, the middle end of the movable connecting rod is movably connected to the parallel fixing plate, and the other end of the movable connecting rod is movably connected to a bending pull rod.

[0014] As a preferred scheme of the gantry type wire cutting machine tool, one end of the rotating shaft is provided with a rotating wheel, an embedded groove is formed in the end of the rotating wheel, an embedded rod is arranged in the embedded groove, and a soft pad is arranged between the embedded rod and the embedded groove, so that the embedded groove can exert a pulling force on the embedded rod when rotating, and one end of the embedded rod is connected to one end of the bending pull rod.

[0015] As a preferred scheme of the gantry type wire cutting machine tool, the bottom of the bending plate is provided with a storage box, the top of the bending plate is provided with a drawing part, the top of the bending plate is provided with a matching tooth, and the matching tooth is connected to a swing wheel through a shaft.

[0016] As a preferred scheme of the gantry type wire cutting machine tool, the bottom of the drawing part is connected to the storage box through a pipeline, the drawing part is a manual piston pump, the movable rod of the manual piston pump is movably connected to the end of the swing wheel through a pin shaft, and the rotation of the swing wheel drives the manual piston pump to perform the drawing action of lubricating oil.

[0017] As a preferred scheme of the gantry type wire cutting machine tool, a groove is formed in the side wall of the bending plate, a fixed shaft is arranged on the inner wall of the groove, a rotating tooth is arranged on the fixed shaft through a bearing, and the rotating tooth is engaged with the matching tooth.

[0018] As a preferred scheme of the gantry type wire cutting machine tool, a tooth block is formed in the outer ring of the rotating wheel, and the rotating wheel is engaged with the tooth block.

[0019] Advantages

[0020] The technical scheme provided by the application has the following advantages compared with the known prior art:

[0021] I. Through the linkage design of the spring telescopic piece, the bending plate and the tensioning wheel, when the cutting wire is loose, the tensioning force can be automatically applied to the cutting wire, ensuring that the cutting section always maintains stable tension, avoiding the accumulation of processing errors caused by insufficient tension, significantly improving cutting precision, especially suitable for long-stroke and high-precision processing scenarios.

[0022] II. During the wire feeding and wire collecting processes, the rotating wheel is linked with the embedded slide and the embedded rod, driving the pressure block and the extension plate to disengage, so that the tensioning wheel can dynamically respond to the change of the cutting wire tension, realizing self-adaptive adjustment of the tensioning force, without manual intervention to maintain stable processing state, improving the automation level and operation efficiency of the equipment.

[0023] III. Through the mechanical linkage of the rotating wheel and the swinging wheel, the manual piston pump is driven to quantitatively extract lubricating oil from the storage tank and accurately deliver it to the rotating shaft bearing, realizing automatic operation of the lubrication system. This design significantly reduces the frequency of manual maintenance, ensures the long-term stable operation of the tensioning and adjusting mechanism, and prolongs the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 It is a schematic diagram of a gantry type wire cutting machine tool.

[0026] Figure 2 It is a schematic diagram of a directional wheel of a gantry type wire cutting machine tool.

[0027] Figure 3 It is a schematic diagram of a spring telescopic piece of a gantry type wire cutting machine tool.

[0028] Figure 4 It is an enlarged view of A in Figure 1

[0029] Figure 5 It is a schematic diagram of a bending plate of a gantry type wire cutting machine tool.

[0030] Figure 6 It is a schematic diagram of a bending pull rod of a gantry type wire cutting machine tool. ​

[0031] Figure 7 Figure is a schematic view of an extraction part of a gantry type wire cutting machine tool.

[0032] Figure: 1, base; 11, gantry walking frame; 12, transmission mechanism; 13, wire collecting mechanism; 14, wire releasing mechanism; 2, support plate; 21, arc-shaped frame; 22, rotating shaft; 23, directional wheel; 24, spring telescopic part; 25, bending plate; 26, tight wheel; 3, extension plate; 31, parallel fixed plate; 32, pressure spring; 33, pressure block; 4, movable connecting rod; 41, bending pull rod; 42, rotating wheel; 43, embedded rod; 44, embedded sliding groove; 5, storage box; 51, extraction part; 52, matching tooth; 53, swing wheel; 54, flow pipe; 6, groove; 61, fixed shaft body; 62, rotating tooth; 63, tooth block. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0035] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0036] Thirdly, the present application is described in detail in conjunction with the schematic view, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without general proportion for the convenience of description, and the schematic view is only an example, which should not limit the scope of protection of the present application herein. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0037] EMBODIMENT

[0038] REFERENCE Figure 1 - Figure 7For an embodiment of the present application, the embodiment provides a gantry type wire cutting machine tool, comprising, a base 1, the base 1 is provided with a gantry walking frame 11, the gantry walking frame 11 is provided with a transmission mechanism 12, the transmission mechanism 12 is provided with a wire collecting mechanism 13, and the bottom side of the gantry walking frame 11 is provided with a wire releasing mechanism 14, wherein the base 1 is integrally cast and is subjected to secondary aging treatment, so that micron-level shape and position accuracy can be maintained during long-time heavy load cutting of a large workpiece;

[0039] The bottom side of the output end of the transmission mechanism 12 is provided with a support plate 2, the outer wall of the support plate 2 is provided with an arc-shaped frame 21, the arc-shaped frame 21 is provided with a rotating shaft 22 through a bearing, the outer wall of the rotating shaft 22 is provided with a directional wheel 23, the outer wall of the support plate 2 is provided with a spring telescopic piece 24, one end of the spring telescopic piece 24 is provided with a bent plate 25, the slotted area of the bent plate 25 is provided with a tight wheel 26 through a shaft body, the tight wheel 26 is located above the directional wheel 23 on one side, when the cutting wire is loose, the spring telescopic piece 24 pulls the bent plate 25, so that the cutting wire above the directional wheel 23 on the bent plate 25 is pressed and tightened, the cutting wire below the directional wheel 23 maintains appropriate tension, avoids the influence of loose cutting wire on subsequent machining accuracy, improves the cutting effect, ensures that the cutting wire below the directional wheel 23 always maintains appropriate tension, and avoids the accumulation of machining errors caused by looseness.

[0040] Specifically, the directional wheel 23 guides the unidirectional wire, so that the wire between the directional wheel 23 and the wire releasing mechanism 14 is in a vertical state, and the wire between the directional wheel 23 and the tight wheel 26 is in a tight area.

[0041] Further, the side outer wall of the bent plate 25 is provided with an extension plate 3, the outer wall of the support plate 2 is provided with a parallel fixed plate 31 located on one side of the extension plate 3, the outer wall of the parallel fixed plate 31 is provided with a pressing spring 32, one end of the pressing spring 32 is provided with a pressing block 33, the pressing spring 32 and the pressing block 33 are matched, when the wire is not released and collected, the pressing spring 32 applies pressure to the pressing block 33, so that the pressing block 33 is pressed on the extension plate 3, so that the extension plate 3 is locked by the pressing block 33, at this time, the tight wheel 26 is in a fixed state and cannot move, thereby avoiding the offset of the spring telescopic piece 24 caused by moving inertia during cutting.

[0042] Further, the pressing spring 32 applies pressure to the pressing block 33 and the outer wall of the extension plate 3, the abutting surfaces of the extension plate 3 and the pressing block 33 are provided with convex points with large friction coefficients, so that the extension plate 3 is limited to move by the pressing block 33, the friction force is increased through the convex point design, the locking effect between the extension plate 3 and the pressing block 33 is further improved, and accidental loosening caused by vibration or inertia is prevented.

[0043] Further, the outer wall of the pressing block 33 is provided with a movable connecting rod 4, the middle end of the movable connecting rod 4 is movably connected to the parallel fixed plate 31, and the other end of the movable connecting rod 4 is movably connected to a bent pull rod 41. The linkage design of the movable connecting rod 4 and the bent pull rod 41 enables the rotating action of the rotating wheel 42 to be accurately transmitted to the pressing block 33, so as to realize the rapid disengagement or adhesion of the pressing block 33 and the extension plate 3, and ensure the self-adaptive adjustment in the yarn feeding and collecting processes.

[0044] Further, one end of the rotating shaft 22 is provided with a rotating wheel 42, the end of the rotating wheel 42 is provided with an embedded sliding groove 44, the embedded sliding groove 44 is provided with an embedded rod 43, and a soft pad is arranged between the embedded rod 43 and the embedded sliding groove 44. When the embedded sliding groove 44 rotates, it can exert a pulling force on the embedded rod 43. One end of the embedded rod 43 is connected to one end of the bent pull rod 41. The soft pad design reduces the wear between the embedded rod 43 and the embedded sliding groove 44, and at the same time ensures that the embedded rod 43 can be stably pulled when the rotating wheel 42 rotates, avoiding the delay caused by too large gap. When feeding and collecting yarn, the cutting yarn moves to drive the directional wheel 23 to rotate, the directional wheel 23 rotates to drive the rotating shaft 22 to rotate, the rotating shaft 22 rotates to drive the rotating wheel 42 to rotate, the rotating wheel 42 rotates to engage the embedded sliding groove 44 and the embedded rod 43, so that the rotating wheel 42 can rotate to pull the embedded rod 43 to move, the embedded rod 43 moves to drive the bent pull rod 41 to move, the bent pull rod 41 moves to pull one end of the movable connecting rod 4, and then the other end of the movable connecting rod 4 is bent and raised, so that the raised end of the movable connecting rod 4 pulls the pressing block 33 to move, and the pressing block 33 moves away from the extension plate 3. At this time, the spring telescopic piece 24 and the tight wheel 26 exert a tight force on the cutting yarn.

[0045] Further, the bottom of the bent plate 25 is provided with a storage box 5, the top of the bent plate 25 is provided with a drawing piece 51, and the top of the bent plate 25 is provided with a matching tooth 52. The matching tooth 52 is connected with a swing wheel 53 through a shaft body. The integrated design of the storage box 5 and the drawing piece 51 enables the lubricating oil to be automatically supplemented to the bearing of the rotating shaft 22 during the yarn feeding and collecting processes, reduces the frequency of artificial maintenance, and ensures the smoothness of long-term operation of the mechanism.

[0046] Further, the bottom of the extraction piece 51 is connected with the storage box 5 through a pipeline, and the extraction piece 51 is a manual piston pump, the movable rod body of the manual piston pump is movably connected with the end of the swing wheel 53 through a pin shaft, the rotation of the swing wheel 53 drives the manual piston pump to perform the extraction of lubricating oil, so that the lubricating oil can be extracted from the storage box 5 into the inside of the manual piston pump, and through the extraction, the lubricating oil is pressed to the top of the piston, and the top of the piston injects the lubricating oil into the flow pipe 54, so as to lubricate the bearing of the rotating shaft 22 through the guidance of the flow pipe 54, through the mechanical linkage of the swing wheel 53 and the manual piston pump, the quantitative extraction and accurate conveying of the lubricating oil are realized, and the bearing wear or lubrication failure caused by excessive or insufficient lubricating oil is avoided.

[0047] The rotation number of the cutting wire driven directional wheel 23 is determined by the unwinding and winding strokes, and the unwinding and winding strokes are limited, so that the swing wheel 53 is realized to have a fixed rotation number through the limited and fixed strokes, and the fixed rotation number will fix the lubrication of the bearing by the extracted quantitative lubricating oil, and the situation of excessive extraction of lubricating oil will not occur.

[0048] Further, the side wall of the bending plate 25 is provided with a groove 6, the inner wall of the groove 6 is provided with a fixed shaft body 61, the fixed shaft body 61 is provided with a rotating tooth 62 through a bearing, the rotating tooth 62 is engaged with the matching tooth 52, and the structure design of the groove 6 and the fixed shaft body 61 makes the engagement of the rotating tooth 62 and the matching tooth 52 more compact, reduces the energy loss in the transmission process, and ensures the reliability of the lubricating oil extraction action.

[0049] Further, the outer circle of the rotating wheel 42 is provided with a tooth block 63, the rotating wheel 42 is engaged with the rotating tooth 62 through the tooth block 63, through the design of the tooth block 63, the rotating wheel 42 can synchronously drive the rotating tooth 62 and the matching tooth 52 when rotating, realizes the synchronous performance of the lubricating oil extraction and the tension adjustment, and further improves the automation degree and operation efficiency of the mechanism.

[0050] Operation process: when the wire cutting is carried out, the gantry walking frame 11 and the transmission mechanism 12 drive the cutting wire to carry out the cutting action, the base 1 is placed with the blank, the gantry type wire cutting machine tool can carry out the precise cutting to the large workpiece, the wire is easy to stretch loose due to the long stroke processing or the long time fatigue processing, so a tensioning structure is needed to effectively avoid the loosening of the cutting wire, when the cutting wire is loose, the spring expansion piece 24 pulls the bending plate 25, so that the cutting wire above the directional wheel 23 on the bending plate 25 is pressed tightly, so that the cutting wire below the directional wheel 23 maintains the appropriate tension, avoids the influence of the loose cutting wire on the subsequent processing precision, improves the cutting effect, and when the wire is not put and collected, the pressing spring 32 exerts pressure on the pressing block 33, so that the pressing block 33 is pressed on the extension plate 3, so that the extension plate 3 is limited and locked by the pressing block 33, at this time the tight wheel 26 is in a fixed state and cannot move, so as to avoid the spring expansion piece 24 from deviating due to the moving inertia when cutting, so as to ensure that the cutting wire is not moved by the spring expansion piece 24 when cutting, and when the wire is put and collected, the cutting wire moves to drive the directional wheel 23 to rotate, the directional wheel 23 rotates to drive the rotating shaft 22 to rotate, the rotating shaft 22 rotates to drive the rotating wheel 42 to rotate, the rotating wheel 42 rotates to make the rotating wheel 42 rotate and move the embedded rod 43, the embedded rod 43 moves to drive the bending pull rod 41 to move, the bending pull rod 41 moves to pull one end of the movable connecting rod 4, so that the other end of the movable connecting rod 4 is bent and raised, so that the raised end of the movable connecting rod 4 pulls the pressing block 33 to move, the pressing block 33 moves away from the extension plate 3, at this time the spring expansion piece 24 and the tight wheel 26 exert the tight force on the cutting wire, so that after the wire is put and collected, the tension of the cutting wire is adjusted again, so as to avoid the loosening of the cutting wire from causing large errors, and the self-adaptive tension adjustment is carried out during each wire putting and collecting process, so as to effectively improve the processing precision of the cutting wire; and during the wire putting and collecting process, the rotating wheel 42 rotates to drive the rotating tooth 62 to rotate, the rotating tooth 62 rotates to drive the matching tooth 52 to rotate, the matching tooth 52 rotates to drive the swing wheel 53 to rotate, the swing wheel 53 rotates to drive the extraction piece 51 to operate, the extraction piece 51 operates to extract the lubricating oil stored in the storage box 5 to the top side of the piston of the extraction piece 51, at this time the lubricating oil can flow to the connecting bearing between the rotating shaft 22 and the arc-shaped frame 21 through the flow pipe 54 by gravity, so as to ensure that the rotating shaft 22 rotates smoothly, and no manual maintenance is needed, so as to ensure the operation of the above cutting wire tensioning adjusting mechanism.

[0051] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A gantry type wire-cut machine tool, characterized by: The utility model relates to a silk production device, including, The bottom side of the output end of transmission mechanism (12) is installed with support plate (2), the outer wall of support plate (2) is installed with arc frame (21), arc frame (21) is installed with rotating shaft (22) through bearing, the outer wall of rotating shaft (22) is installed with directional wheel (23), the outer wall of support plate (2) is installed with spring telescopic part (24), one end of spring telescopic part (24) is installed with bending plate (25), the slot area of bending plate (25) is installed with tight wheel (26) through shaft body, tight wheel (26) is located the upper side of directional wheel (23), directional wheel (23) is guided to one-way silk line, so that the silk line between directional wheel (23) and silk releasing mechanism (14) is vertical state, and the silk line between directional wheel (23) and tight wheel (26) is the tight area of silk line, the side outer wall of bending plate (25) is installed with extension plate (3), the outer wall of support plate (2) is installed with parallel fixed plate (31) located one side of extension plate (3), the outer wall of parallel fixed plate (31) is installed with pressure spring (32), one end of pressure spring (32) is installed with pressure block (33), pressure spring (32) is applied pressure and the outer wall of extension plate (3) is adhered to pressure block (33), the adhering surface of extension plate (3) and pressure block (33) is all provided with the convex point of greater friction coefficient, so that extension plate (3) is limited to move by pressure block (33), the outer wall of pressure block (33) is installed with movable connecting rod (4), the middle end of movable connecting rod (4) is movably connected on parallel fixed plate (31), and the other end of movable connecting rod (4) movably connects bending pull rod (41). One end of rotating shaft (22) is installed with rotating wheel (42), the end of rotating wheel (42) is provided with embedded slide groove (44), embedded slide groove (44) is provided with embedded rod (43), and soft pad is arranged between embedded slide groove (44) and embedded rod (43), so that embedded slide groove (44) can exert tension on embedded rod (43) when rotating, and one end of embedded rod (43) is connected with one end of bending pull rod (41).

2. The gantry wire-cut machine according to claim 1, characterized in that: The bottom of bending plate (25) is installed with storage box (5), the top of bending plate (25) is installed with extraction part (51), the top of bending plate (25) is installed with cooperation tooth (52), cooperation tooth (52) is connected with swing wheel (53) through shaft body.

3. The gantry wire-cut machine according to claim 2, characterized in that: The bottom of extraction part (51) is connected with storage box (5) through pipeline, and the extraction part (51) is a manual piston pump, the movable rod body of the manual piston pump is movably connected with the end of swing wheel (53) through a pin, and the rotation of swing wheel (53) drives the manual piston pump to perform the extraction of lubricating oil.

4. The gantry wire-cut machine according to claim 3, characterized in that: ​ 5. The gantry wire-cut machine tool of claim 4, wherein: The side wall of the bent plate (25) is provided with a groove (6), the inner wall of the groove (6) is provided with a fixed shaft body (61), the fixed shaft body (61) is provided with a rotating tooth (62) through a bearing, and the rotating tooth (62) is engaged with the matching tooth (52).

6. The gantry wire-cut machine tool of claim 5, wherein: The outer ring of the rotating wheel (42) is provided with a tooth block (63), and the rotating wheel (42) is engaged with the rotating tooth (62) through the tooth block (63).

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