Automatic positioning structure for threading catheter

Abstract

The utility model provides an automatic positioning structure for a threading catheter, which comprises a fixed seat, a guide rod, a guide rod, a guide rod and a guide rod, and is characterized in that a lifting channel is formed in the fixed seat; the lifting wire penetrating guide pipe is used for guiding an electrode wire to penetrate through and slides in the lifting channel; the catheter power supply mechanism can supply power to the lifting threading catheter, so that the lifting threading catheter can be electrified; before wire threading, the electrified lifting wire threading guide pipe slowly extends upwards along the lifting channel, when the uppermost end of the lifting wire threading guide pipe abuts against a workpiece, the lifting wire threading guide pipe is electrically connected with the workpiece, meanwhile, the workpiece transmits an electric signal generated after the lifting wire threading guide pipe makes contact with the workpiece to the controller, and the controller controls the lifting wire threading guide pipe to stop moving after receiving the signal. Manual adjustment is not needed in the adjusting process, the lifting threading guide pipe automatically stops moving after making contact with a workpiece, the adjusting precision is high, the working efficiency is high, and the threading efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wire cutting equipment technical field especially, relates to a silk -thread -threaded catheter automatic positioning structure. BACKGROUND

[0002] In the mechanical processing, especially in the wire cut electrical discharge machining process, often need to complete the electrode wire, such as electrode wire, copper wire or galvanized wire etc. The silk -thread -threaded path is built, and the cutting processing is carried out after the silk -thread -threading. The existing electrode wire silk -thread -threading method mainly exists: the silk -thread -threading mechanism above the workpiece is used to pass the electrode wire through the workpiece hole and then sent into the wire feeding mechanism, and this electrode wire threading and feeding structure often needs the distance between the workpiece and the wire feeding mechanism to be very close, and the waste falling and the material jamming phenomenon often occur.

[0003] To solve the defects of the prior art, the automatic docking lower silk -thread -threading mechanism appears in the market, the wire feeding mechanism is provided with a telescopic lifting silk -thread -threading catheter, when the lifting silk -thread -threading catheter is used to thread, the lifting silk -thread -threading catheter needs to be stretched upwards until the upper end of the lifting silk -thread -threading catheter abuts the lower concave hole of the lower end of the workpiece, so that the electrode wire threaded out of the workpiece hole can accurately enter the lifting silk -thread -threading catheter, and the position of the upper end of the lifting silk -thread -threading catheter and the workpiece is manually adjusted at present, the precision of manual adjustment is poor, the time is long, and great inconvenience is brought to the silk -thread -threading work, therefore, how to accurately control the position of the lifting silk -thread -threading catheter is a problem to be solved, and we improve it and propose a silk -thread -threading catheter automatic positioning structure. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the background art, and provides a silk -thread -threading catheter automatic positioning structure.

[0005] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme: a silk -thread -threading catheter automatic positioning structure, which comprises: a fixed seat, a lifting channel is formed in the inside of the fixed seat;Lifting silk -thread -threading catheter that guides electrode wire to pass through, the lifting silk -thread -threading catheter slides in the lifting channel;Catheter power supply mechanism, the catheter power supply mechanism can power the lifting silk -thread -threading catheter, so that it can be electrified;Before silk -thread -threading, the electrified lifting silk -thread -threading catheter slowly stretches upwards along the lifting channel, when the uppermost end of the lifting silk -thread -threading catheter is in contact with the workpiece, the lifting silk -thread -threading catheter forms electrical connection with the workpiece, and the workpiece transmits the electrical signal generated after the two are contacted to the controller, and the controller controls the lifting silk -thread -threading catheter after receiving the signal, so that it stops moving, and then the positioning of the lifting silk -thread -threading catheter is realized.

[0006] Preferably, the catheter power supply mechanism is a first conductive brush, the first conductive brush is fixedly installed on the fixed seat, and the output end of the first conductive brush is in contact with the outer wall of the lifting wire-through catheter, so that the first conductive brush and the lifting wire-through catheter can be in electrical communication, and thus the first conductive brush can supply power to the lifting wire-through catheter after being powered on.

[0007] Preferably, the catheter power supply mechanism is a driving module, the driving module can drive the lifting wire-through catheter to slide up and down in the lifting channel, and the driving module is in electrical communication with the lifting wire-through catheter, so that the driving module can supply power to the lifting wire-through catheter after being powered on.

[0008] Preferably, the driving module comprises a driving roller and a driven roller, the driving roller and the driven roller are respectively arranged on both sides of the lifting wire-through catheter, the driving roller and the driven roller are in close contact with the outer wall of the lifting wire-through catheter, so that the driving roller and the driven roller and the lifting wire-through catheter are in electrical communication, and the driving roller or the driven roller can supply power to the lifting wire-through catheter after being powered on.

[0009] Preferably, the driving module further comprises a second conductive brush, the second conductive brush is fixedly installed on the fixed seat, and the output end of the second conductive brush is in close contact with the driving roller or the driven roller, so that the second conductive brush and the driving roller or the driven roller are in electrical communication, the second conductive brush supplies power to the driving roller or the driven roller, and thus the driving roller or the driven roller can supply power to the lifting wire-through catheter.

[0010] Preferably, the catheter power supply mechanism is a conductive sheet, the conductive sheet is fixed on the lower side of the lifting wire-through catheter, so that the conductive sheet and the lifting wire-through catheter are in electrical communication, and thus the conductive sheet can supply power to the lifting wire-through catheter after being powered on.

[0011] Preferably, the catheter power supply mechanism is a wire, the wire is fixedly installed on the upper end of the lifting wire-through catheter, so that the wire and the lifting wire-through catheter are in electrical communication, and thus the wire can supply power to the lifting wire-through catheter after being powered on.

[0012] Preferably, the power mechanism further comprises a power motor, the power motor is arranged on the fixed seat, and the power motor can provide power for the lifting wire-through catheter to lift after receiving power, the power motor is electrically connected with the controller, an electrical signal is generated by the workpiece when the lifting wire-through catheter is in contact with the workpiece, the controller receives the electrical signal transmitted by the workpiece, and controls the power motor to stop working, so that the power for the lifting wire-through catheter to lift disappears, and thus the lifting wire-through catheter stops moving and realizes positioning.

[0013] The conduit power supply mechanism and the workpiece are preferably electrically connected with a relay, and the relay is electrically connected with a controller.

[0014] Compared with the prior art, the utility model has the beneficial effects of:

[0015] The conduit power supply mechanism is arranged on the lifting wire threading conduit, and can supply power to the lifting wire threading conduit, so that the lifting wire threading conduit can be electrified. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of the embodiment of the utility model;

[0017] Figure 2 A view of the relationship between the utility model and the workpiece;

[0018] Figure 3 A structure view of the first embodiment of the utility model;

[0019] Figure 4 A structure view of the second embodiment of the utility model;

[0020] Figure 5 An enlarged view of A of Figure 4 An enlarged view of B of

[0021] Figure 6 A structure view of the third embodiment of the utility model;

[0022] Figure 7 An enlarged view of B of Figure 6 An enlarged view of B of

[0023] Figure 8 A structure view of the fourth embodiment of the utility model.

[0024] Indications in the drawings:

[0025] 100, fixed seat; 110, lifting channel;

[0026] 200, lifting wire threading conduit;

[0027] 300, conduit power supply mechanism; 310, first conductive brush; 320, driving module; 3201, driving roller; 3202, driven roller; 3203, second conductive brush; 330, conducting sheet; 340, wire;

[0028] 400, workpiece;

[0029] 500, power mechanism; 510, power motor. DETAILED DESCRIPTION

[0030] For the purpose of facilitating the understanding of the present application, the technical solutions in the embodiments of the present application are described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification is for the purpose of describing the specific embodiments only and is not intended to limit the present application.

[0032] Therefore, based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative labor fall within the scope of protection of the present application. It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict, and attention should be paid to: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] Embodiment one:

[0034] Please refer to Figures 1-3The application discloses a wire threading catheter automatic positioning structure, which comprises a fixing base 100 which is detachably installed on a wire feeding mechanism of a cutting machine, a vertical lifting channel 110 is formed in the fixing base 100, a lifting wire threading catheter 200 for guiding electrode wire threading is slidably connected in the lifting channel 110, the lifting wire threading catheter 200 can slide up and down in the lifting channel 110 through the driving of a power mechanism 500, it is to be noted that the power mechanism 500 can be a structure in the prior art, such as hydraulic driving, pneumatic driving and the like, in the embodiment, an electric driving structure is adopted, specifically, the power mechanism 500 comprises a power motor 510, the power motor 510 is arranged on the fixing base 100, the power motor 510 can provide power for lifting the lifting wire threading catheter 200 after receiving electric power, the power motor 510 is electrically connected with a controller, when the lifting wire threading catheter 200 is in contact with a workpiece 400, the workpiece 400 generates an electric signal, after the controller receives the electric signal transmitted by the workpiece 400, the power motor 510 is controlled to stop working, and then the power for lifting the lifting wire threading catheter 200 disappears, so that the lifting wire threading catheter 200 stops and the positioning is realized.

[0035] The lifting wire threading catheter 200 is a hollow conductive pipe, and the material is preferably metal (such as iron, copper, steel and the like), the lifting wire threading catheter 200 extends to the lower concave hole of the workpiece 400, the electrode wire is threaded into the lifting wire threading catheter 200, under the guidance of the lifting wire threading catheter 200, the electrode wire is threaded into the lifting wire threading catheter 200, and then enters the wire feeding mechanism connected with the fixing base 100, so that the electrode wire threading and feeding are realized.

[0036] When the automatic docking lower wire threading mechanism in the market utilizes the lifting wire threading catheter to thread, the lifting wire threading catheter needs to be extended upwards until the uppermost end of the lifting wire threading catheter abuts against the lower concave hole of the lower end of the workpiece, so that the electrode wire threaded from the workpiece can accurately reach the lifting wire threading catheter, at present, the position of the upper end of the lifting wire threading catheter and the workpiece is manually adjusted by workers, the precision of manual adjustment is poor, the time is long, and great inconvenience is brought to the wire threading work.

[0037] In order to realize the automatic positioning of the lifting wire threading guide tube 200, the lifting wire threading guide tube 200 is provided with a guide tube power supply mechanism 300, which can supply power to the lifting wire threading guide tube 200 and enable the lifting wire threading guide tube 200 to be electrified. Specifically, before threading, the electrified lifting wire threading guide tube 200 slowly extends upward along the lifting channel 110, and when the uppermost end of the lifting wire threading guide tube 200 comes into contact with the lower concave surface of the workpiece 400, the lifting wire threading guide tube 200 forms an electrical connection with the workpiece 400. It should be noted that the electrode polarity of the lifting wire threading guide tube 200 and the workpiece 400 is opposite, and the lifting wire threading guide tube 200 can be positive, and then the workpiece 400 is negative, or the lifting wire threading guide tube 200 is negative, and then the workpiece 400 is positive. After the contact of the two components with opposite polarities realizes the electrical connection, a corresponding electrical signal is generated, and then the electrical signal is transmitted to the controller. After receiving the signal, the controller controls the power mechanism 500, and then the power mechanism 500 controls the lifting wire threading guide tube 200 to stop moving, thereby realizing the positioning of the lifting wire threading guide tube 200. The adjustment process does not require manual adjustment, and the lifting wire threading guide tube 200 automatically stops moving after contacting the workpiece 400, which has high adjustment accuracy and fast working efficiency, greatly improving the threading efficiency.

[0038] Preferably, the guide tube power supply mechanism 300 is a first conductive brush 310, which is detachably mounted on the fixed seat 100. The output end of the first conductive brush 310 is in contact with the outer wall of the lifting wire threading guide tube 200, and the first conductive brush 310 and the lifting wire threading guide tube 200 can be in electrical communication. Therefore, the first conductive brush 310 can supply power to the lifting wire threading guide tube 200 after being electrified, so that the lifting wire threading guide tube 200 is electrified.

[0039] As a more preferred option, the guide tube power supply mechanism 300 and the workpiece 400 are both electrically connected to a relay, and the relay is electrically connected to the controller. When the lifting wire threading guide tube 200 comes into contact with the workpiece 400, the electrical signals generated by the two are transmitted to the relay, and the relay analyzes the signals and transmits them to the controller. After the relay control analysis, the electrical signal is more accurate and the reaction is more agile.

[0040] Embodiment two:

[0041] Please refer to Figures 4-5 The guide tube power supply mechanism 300 is a driving module 320, which can drive the lifting wire threading guide tube 200 to slide up and down in the lifting channel 110. The driving module 320 is in electrical communication with the lifting wire threading guide tube 200, so that the driving module 320 can supply power to the lifting wire threading guide tube 200 after being electrified.

[0042] The driving module 320 can be a structure in the prior art, such as linear push-pull, threaded drive, extrusion drive, and in the present embodiment, the extrusion drive is adopted. Specifically, the driving module 320 includes a driving roller 3201 and a driven roller 3202, which are respectively arranged on both sides of the lifting wire guide tube 200. The driving roller 3201 and the driven roller 3202 are used to clamp and guide the lifting wire guide tube 200 in the lifting channel 110 by rotating. The driving roller 3201 and the driven roller 3202 are in close contact with the outer wall of the lifting wire guide tube 200, and thus the driving roller 3201 and the driven roller 3202 are in electrical communication with the lifting wire guide tube 200. After the driving roller 3201 or the driven roller 3202 is powered, the driving roller 3201 or the driven roller 3202 can supply power to the lifting wire guide tube 200.

[0043] The power source of the driving roller 3201 and the driven roller 3202 can be provided by a gear and a power motor 510. Specifically, a driving gear and the driving roller 3201 are coaxially connected to the output shaft of the power motor 510, a driven gear and the driven roller 3202 are coaxially connected, the driving gear is engaged with the driven gear, the power motor 510 receives power and generates rotating force, thereby driving the driving gear and the driving roller 3201 to rotate, the driving gear drives the driven gear to rotate, and thus the driven gear drives the driven roller 3202 to rotate. The driving gear and the driven gear rotate in opposite directions, and thus the driving roller 3201 and the driven roller 3202 can synchronously and reversely rotate to drive the lifting wire guide tube 200 to lift and lower in a clamping and guiding manner.

[0044] In addition, the driving module 320 further includes a second conductive brush 3203, which is detachably mounted on the fixed seat 100. The output end of the second conductive brush 3203 is in close contact with the driving roller 3201 or the driven roller 3202, and thus the second conductive brush 3203 is in electrical communication with the driving roller 3201 or the driven roller 3202. The second conductive brush 3203 supplies power to the driving roller 3201 or the driven roller 3202, and thus the driving roller 3201 or the driven roller 3202 can supply power to the lifting wire guide tube 200. The power supply of the conductive brush is more stable, and the stability of the device is improved.

[0045] Embodiment three:

[0046] Please refer to Figures 6-7 The power supply mechanism 300 is a conductive sheet 330, which is fixed to the lower side of the lifting wire guide tube 200. The conductive sheet 330 can be in electrical communication with the lifting wire guide tube 200, and thus the conductive sheet 330 can supply power to the lifting wire guide tube 200 after being powered. The overall structure is simple, easy to process, and low in manufacturing cost.

[0047] Embodiment four:

[0048] Please refer to Figure 8 The power supply mechanism 300 is a wire 340, one end of which is fixedly installed on the upper end of the lifting wire-through guide tube 200, and the wire 340 can be in electrical communication with the lifting wire-through guide tube 200, so that the wire 340 can supply power to the lifting wire-through guide tube 200 after being electrified, and the overall structure is simple, convenient to process and low in manufacturing cost.

[0049] The working principle of the embodiment is as follows:

[0050] The power supply mechanism 300 can supply power to the lifting wire-through guide tube 200, so that the lifting wire-through guide tube 200 can be electrified. Before wire threading, the electrified lifting wire-through guide tube 200 slowly extends upward along the lifting channel 110, and when the uppermost end of the lifting wire-through guide tube 200 comes into contact with the workpiece 400, the lifting wire-through guide tube 200 forms an electrical connection with the workpiece 400, and the workpiece 400 transmits the electrical signal generated after the two are in contact to the controller. After receiving the signal, the controller controls the lifting wire-through guide tube 200 to stop moving, thereby realizing automatic positioning of the lifting wire-through guide tube 200.

[0051] It should be noted that the motion state, motion trajectory, etc. of each mechanism of the device can be automatically controlled through numerical control program or PLC programming, and automatic start-stop and automatic operation can be realized by cooperating with position switches. The above program and programming are well known to those skilled in the art, and therefore will not be described in detail.

[0052] The specific model and specification of the power motor 510, the first conductive brush 310, the second conductive brush 3203, the relay and the controller need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method uses the existing technology in the art, so it will not be described in detail.

[0053] The power supply and principle of the power motor 510, the first conductive brush 310, the second conductive brush 3203, the relay and the controller are clear to those skilled in the art, and will not be described in detail.

[0054] The above is only a preferred specific embodiment of the present application, and the protection scope of the present application is not limited thereto, so any modification or equivalent replacement according to the concept of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic positioning structure for a threading catheter, characterized in that, include: A fixed base (100) is provided with a lifting channel (110) inside the fixed base (100); A lifting wire guiding guide (200) guides the electrode wire through, the lifting wire guiding guide (200) sliding within the lifting channel (110); The conduit power supply mechanism (300) is capable of supplying power to the lifting wire threading conduit (200) so that it can be energized. Before threading, the electrified lifting threading guide (200) slowly extends upward along the lifting channel (110). When the uppermost end of the lifting threading guide (200) comes into contact with the workpiece (400), the lifting threading guide (200) and the workpiece (400) form an electrical connection. At the same time, the workpiece (400) transmits the electrical signal generated after the two come into contact to the controller. After receiving the signal, the controller controls the lifting threading guide (200) to stop moving, thereby achieving the positioning of the lifting threading guide (200).

2. The automatic positioning structure for a threading catheter according to claim 1, characterized in that, The power supply mechanism (300) for the conduit is a first conductive brush (310). The first conductive brush (310) is fixedly installed on the fixed base (100). The output end of the first conductive brush (310) is in contact with the outer wall of the lifting wire threading conduit (200), so that the first conductive brush (310) and the lifting wire threading conduit (200) can be electrically connected. Therefore, after the first conductive brush (310) is energized, it can supply power to the lifting wire threading conduit (200).

3. The automatic positioning structure for a threading catheter according to claim 1, characterized in that, The catheter power supply mechanism (300) is a drive module (320). The drive module (320) can drive the lifting and lowering threading catheter (200) to slide up and down in the lifting channel (110). The drive module (320) is electrically connected to the lifting and lowering threading catheter (200). Therefore, the drive module (320) can supply power to the lifting and lowering threading catheter (200) after being powered on.

4. The automatic positioning structure for a threading catheter according to claim 3, characterized in that, The drive module (320) includes an active roller (3201) and a driven roller (3202). The active roller (3201) and the driven roller (3202) are respectively disposed on both sides of the lifting wire threading guide (200). The active roller (3201) and the driven roller (3202) rotate to clamp the lifting wire threading guide (200) and move it up and down in the lifting channel (110). The active roller (3201) and the driven roller (3202) are in close contact with the outer wall of the lifting wire threading guide (200), thereby achieving electrical communication between the active roller (3201) and the driven roller (3202) and the lifting wire threading guide (200). After the active roller (3201) or the driven roller (3202) is energized, the active roller (3201) or the driven roller (3202) can supply power to the lifting wire threading guide (200).

5. The automatic positioning structure for a threading catheter according to claim 4, characterized in that, The drive module (320) further includes a second conductive brush (3203), which is fixedly installed on the fixed base (100). The output end of the second conductive brush (3203) is in close contact with the active roller (3201) or the driven roller (3202), thereby achieving electrical connection between the second conductive brush (3203) and the active roller (3201) or the driven roller (3202). The second conductive brush (3203) supplies power to the active roller (3201) or the driven roller (3202), thereby enabling the active roller (3201) or the driven roller (3202) to supply power to the lifting wire guide tube (200).

6. The automatic positioning structure for a threading catheter according to claim 1, characterized in that, The power supply mechanism (300) of the conduit is a conductive sheet (330). The conductive sheet (330) is fixed on the lower side of the lifting and threading conduit (200), so that the conductive sheet (330) can be electrically connected with the lifting and threading conduit (200). Therefore, the conductive sheet (330) can supply power to the lifting and threading conduit (200) after being energized.

7. The automatic positioning structure for a threading catheter according to claim 1, characterized in that, The power supply mechanism (300) of the conduit is a wire (340). The wire (340) is fixedly installed at the upper end of the lifting wire threading conduit (200), so that the wire (340) can be electrically connected with the lifting wire threading conduit (200). Therefore, the wire (340) can supply power to the lifting wire threading conduit (200) after being energized.

8. The automatic positioning structure for a threading catheter according to claim 1, characterized in that, It also includes a power mechanism (500), which includes a power motor (510). The power motor (510) is mounted on a fixed base (100). After receiving electricity, the power motor (510) can provide power for the lifting and lowering of the wire threading guide (200). The power motor (510) is electrically connected to the controller. When the lifting and lowering wire threading guide (200) comes into contact with the workpiece (400), the workpiece (400) generates an electrical signal. After receiving the electrical signal from the workpiece (400), the controller controls the power motor (510) to stop working, and thus the power for the lifting and lowering of the wire threading guide (200) disappears. Therefore, the lifting and lowering wire threading guide (200) stops moving and achieves positioning.

9. The automatic positioning structure for a threading catheter according to claim 1, characterized in that, The conduit power supply mechanism (300) and the workpiece (400) are both electrically connected to the relay, and the relay is electrically connected to the controller. When the lifting wire threading conduit (200) comes into contact with the workpiece (400), the electrical signals generated by both are transmitted to the relay, and the relay analyzes the signals and transmits them to the controller.

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