CN216882137U

CN216882137U - Slow-feeding wire cutting machining device for adjusting and positioning

Info

Publication number: CN216882137U
Application number: CN202220048919.8U
Authority: CN
Inventors: 于津苏
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-07-05
Anticipated expiration: 2032-01-10

Abstract

The utility model provides a slow-moving wire cutting and processing device for adjusting and positioning, which comprises an upper nozzle head and a lower nozzle head, wherein a conductive block is arranged in the nozzle heads, a baffle is arranged above the upper nozzle, a CCD system is arranged between the upper nozzle head and the lower nozzle head, a lens cone of the CCD system is divided into an upper lens cone and a lower lens cone, a reflecting lens is arranged in the upper lens cone, a focusing lens is arranged in the lower lens cone, and small holes are formed in the centers of the reflecting lens and the focusing lens. According to the utility model, the CCD system is fixed between the upper nozzle and the lower nozzle according to the clamping position of a machined workpiece, the wire electrode sequentially passes through the upper lens barrel, the lower lens barrel and the lower nozzle, the CCD system is opened to adjust the height of the upper nozzle until a clear workpiece surface picture appears in a picture, then workpiece positioning is carried out, the initial machining point is determined, and the rapid and convenient positioning of the part cut and machined by the slow-walking wire is realized. The utility model has simple structure, convenient operation and high controllability for determining the initial point in the process of processing and positioning the complex different-shaped part, can improve the positioning efficiency, improve the positioning precision of secondary processing and reduce the processing period.

Description

Slow-feeding wire cutting machining device for adjusting and positioning

Technical Field

The utility model relates to the technical field of slow-walking wire cutting, in particular to a slow-walking wire cutting machining device for adjusting and positioning.

Background

The slow wire-moving electrospark wire-electrode cutting technology is one kind of special machining, and is used for machining parts by means of the principle of electrospark discharge between a wire electrode and a workpiece. The wire cut electrical discharge machining technology can machine materials with any hardness, strength and brittleness without limitation of material performance. The machining process parameter optimization and the machining error compensation can achieve high machining precision, the power consumption is low, machining scraps are few, parts with complex shapes can be machined, high machining precision is kept, and the method is widely applied to the industrial fields of machine tool production, high-end equipment, automobiles, aerospace and the like.

In the process of slow wire-moving electric spark wire cutting machining, in order to realize effective cooling, chip removal and improvement of machining safety, the whole machining area needs to be completely immersed in deionized water, so that the requirement on the positioning precision of a workpiece is high to ensure the machining precision, and the position of an incision point can be accurately determined. When some non-standard parts are machined or secondary machining is carried out on a complex part in a local area, quick and accurate positioning is difficult. Positioning can be assisted by designing a jig to improve positioning accuracy, however, machining cycle and machining cost are increased.

Therefore, in view of the above, there is a need to provide a new slow-moving wire cutting device to solve the deficiencies of the prior art. According to the utility model, the CCD camera is introduced between the upper nozzle and the lower nozzle, and the relative position between the part and the electrode wire is fed back in real time, so that the relative coordinate of the complex special-shaped part in a working coordinate system of the slow-speed wire cutting machine tool can be rapidly determined, and the rapid positioning of the complex part is realized. The structure can realize the positioning processing of complex special-shaped parts quickly and accurately, reduce the processing period and improve the processing economic benefit.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned technical problems, a slow-moving wire cutting device for adjusting positioning is provided. According to the utility model, the height of an upper nozzle is adjusted to fix a CCD camera between an upper nozzle and a lower nozzle mainly according to the clamping position of a machined workpiece, a wire electrode sequentially passes through an upper lens barrel, the lower lens barrel and the lower nozzle by adopting manual wire threading, the CCD camera is opened, then the height of the upper nozzle is adjusted until a clear workpiece surface picture appears in a picture, then an X axis and a Y axis of a slow-walking wire cutting machining device are adjusted to position the workpiece, and a machining initial point is determined by combining a machining drawing, so that the rapid and convenient positioning of a part cut and machined by the slow-walking wire is realized. The technical means adopted by the utility model are as follows:

a slow-wire cutting apparatus for adjusting positioning, comprising: the device comprises a conductive block device I, a conductive block device II, an upper nozzle, a lower nozzle, a connecting rod, a baffle and a CCD system, wherein the conductive block device I and the conductive block device II are respectively used for installing conductive blocks, the upper nozzle, the baffle and the conductive block device I are sequentially connected with each other from bottom to top, the conductive block device II is connected with the lower end of the lower nozzle, one end of the connecting rod is connected with the conductive block device I, the CCD system is fixed on the connecting rod and positioned between the upper nozzle and the lower nozzle, and the CCD system has a positioning function and can be detached; the workpiece is fixed on the working platform and is positioned below the lower nozzle;

the CCD system realizes imaging through an upper lens barrel and a lower lens barrel which are arranged, the lower end of the upper lens barrel is connected with the upper end of the lower lens barrel, the upper lens barrel and the lower lens barrel are connected between an upper nozzle and a lower nozzle through electrode wires, and the electrode wires penetrate through the upper nozzle, sequentially penetrate through the upper lens barrel and the lower lens barrel from top to bottom and finally penetrate through the lower nozzle; the CCD system is used for feeding back the relative position between the workpiece and the electrode wire in real time, and a clear picture of the workpiece clamped in a display of the CCD system appears by adjusting the position of the upper nozzle, so that the workpiece is quickly positioned.

Furthermore, a positioning fixing groove for positioning and fixing is formed in the conductive block device I, a square key for fixing is arranged at the fixed end of the connecting rod, at least one threaded hole II is formed in the square key, a screw is connected into the threaded hole II in a matched mode, the square key is inserted into the fixing groove, and the connecting rod and the conductive block device I are pressed and fixed through the threaded hole II and the screw; the fixing groove and the square key are positioned through the smooth end face of the square key.

Further, the square key and the connecting rod are of an integrated structure.

Further, the length of the fixing groove is larger than that of the square key.

Further, the upper lens barrel is in threaded connection with the lower lens barrel.

Furthermore, a reflecting lens is fixed in the upper lens barrel, a focusing lens is fixed in the lower lens barrel, and the upper lens barrel and the lower lens barrel are concentric.

Furthermore, a small hole of 0.3mm is formed in the center of the lens of the reflecting lens, the lens of the reflecting lens is fixed in the upper lens barrel at an included angle of 45 degrees with the horizontal direction, the electrode wire penetrates through the small hole, and the small hole is concentric with the lower nozzle and the upper nozzle.

Furthermore, a small hole of 0.3mm is formed in the center of the lens of the focusing lens, the lens of the focusing lens is fixed in the lower lens barrel at an included angle of 0 degree with the horizontal direction, the electrode wire penetrates through the small hole, and the small hole is concentric with the lower nozzle and the upper nozzle.

Furthermore, a photoelectric conversion device for performing photoelectric conversion is further arranged on the CCD system and is located in the horizontal direction of the mirror of the reflection lens.

Furthermore, be equipped with screw hole I on the connecting rod, I fit in screw hole is connected with the bolt, fixes the CCD system on the connecting rod through screw hole I and bolt.

Compared with the prior art, the utility model has the following advantages:

1. the slow-walking wire cutting machining device for adjusting and positioning, provided by the utility model, has the advantages of simple positioning system, convenience in operation, high controllability in determining the initial point in the process of machining and positioning the complex different-shaped part, capability of improving the positioning efficiency, improving the positioning precision of secondary machining and reducing the machining period.

2. According to the slow-walking wire cutting and machining device for adjusting and positioning, the height of the upper nozzle is adjusted according to the clamping position of a machined workpiece, the CCD camera is fixed between the upper nozzle and the lower nozzle, the electrode wire sequentially penetrates through the upper lens barrel, the lower lens barrel and the lower nozzle by adopting manual wire threading, the CCD camera is opened, then the height of the upper nozzle is adjusted until a clear workpiece surface picture appears in a picture, then the X axis and the Y axis of a slow-walking wire cutting and machining device are adjusted to position the workpiece, a machining initial point is determined by combining a machining drawing, and the fast and convenient positioning of a part cut and machined by the slow-walking wire is realized.

3. According to the slow-walking wire cutting machining device for adjusting and positioning, the CCD camera is introduced between the upper nozzle and the lower nozzle, and the relative position between the part and the electrode wire is fed back in real time, so that the relative coordinate of a working coordinate system of a complex special-shaped part in a slow-walking wire cutting machining machine tool can be rapidly determined, and rapid positioning of the complex part is realized. The structure can realize the positioning processing of complex special-shaped parts quickly and accurately, reduce the processing period and improve the processing economic benefit.

Based on the reasons, the utility model can be widely popularized in the fields of slow-speed wire cutting and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a positioning structure for wire cutting according to the present invention.

FIG. 2 is a schematic structural diagram of the CCD system for processing and positioning according to the present invention.

In the figure: 1. a conductive block device I; 2. a conductive block device II; 3. a working platform; 4. an upper nozzle; 5. a wire electrode; 6. a reflective lens; 7. a focusing lens; 8. a small hole; 9. a lower nozzle; 10. a photoelectric conversion device; 11. a threaded hole I; 12. a connecting rod; 13. a threaded hole II; 14. a square key; 15. an end face; 16. a baffle plate; 17. fixing grooves; 18. a CCD system; 19. an upper barrel; 20. a lower barrel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

The utility model provides a slow-walking wire cutting processing device for adjusting and positioning, which comprises an upper nozzle head and a lower nozzle head for cutting a slow-walking wire, wherein a conductive block is arranged in the nozzle head, a baffle is arranged above the upper nozzle, a detachable CCD system for adjusting and positioning is arranged between the upper nozzle head and the lower nozzle head, the CCD system is fixed on a conductive block device I of the upper nozzle head through a connecting rod, the CCD lens barrel is divided into an upper lens barrel and a lower lens barrel, the upper lens barrel is connected with the lower lens barrel through threads, a reflecting lens is arranged in the upper lens barrel, a focusing lens is arranged in the lower lens barrel, and small holes are respectively formed in the centers of the reflecting lens and the focusing lens in the CCD system. The utility model also discloses an auxiliary adjusting and positioning method capable of realizing the slow-speed wire cutting, trimming and processing of the complex special-shaped parts. According to the utility model, according to the clamping position of a machined workpiece, the height of an upper nozzle is adjusted, a CCD camera (CCD system) is fixed between an upper nozzle and a lower nozzle, a wire electrode penetrating out of the upper nozzle sequentially penetrates through an upper lens barrel, the lower lens barrel and the lower nozzle by adopting manual threading, the CCD camera is opened, then the height of the upper nozzle is adjusted until a clear workpiece surface picture appears in a picture, then an X axis and a Y axis of a slow-running wire cutting machining device are adjusted to position the workpiece, a machining initial point is determined by combining a machining drawing, and the rapid and convenient positioning of a part cut and machined by the slow-running wire is realized. The positioning system of the slow-walking wire cutting machining device is simple, convenient to operate, high in controllability of determining the initial point in the process of machining and positioning the complex special-shaped parts, capable of improving the positioning efficiency, improving the positioning precision of secondary machining and reducing the machining period.

Example 1

As shown in fig. 1 and fig. 2, the utility model provides an auxiliary adjusting and positioning device for slow-walking wire cutting trimming processing of complex different-shape parts, which comprises an upper nozzle 4 and a lower nozzle 9, wherein a baffle 16 and a conductive block device i 1 for mounting a conductive block are arranged at the upper end of the upper nozzle 4, a conductive block device ii 2 for mounting a conductive block is arranged at the lower end of the lower nozzle 9, a detachable CCD system 18 for positioning is arranged between the upper nozzle 4 and the lower nozzle 9, the CCD system 18 is mounted on the conductive block device i 1 through a connecting rod 12, a positioning fixing groove 17 for positioning and fixing is formed in the conductive block device i 1, a square key 14 for fixing and integrating with the connecting rod 12 is arranged at the fixed end of the connecting rod 12, and an imaging lens barrel of the CCD system 18 is provided with an upper lens barrel 19 and a lower lens barrel 20.

Specifically, the method comprises the following steps: the connecting rod 12 and the conducting block device I1 are compressed and fixed through a screw hole II 13, the positioning fixing groove 17 and the square key 14 are positioned through the smooth end face 15 of the square key 14, and the length of the fixing groove 17 is larger than that of the square key 14.

Specifically, the method comprises the following steps: the upper lens barrel 19 is connected with the lower lens barrel 20 through threads, a reflecting lens 6 is fixed in the upper lens barrel 19, a focusing lens 7 is fixed in the lower lens barrel 20, and the upper lens barrel 19 is concentric with the lower lens barrel 20.

Specifically, the method comprises the following steps: the center of the reflector 6 lens is provided with a small hole 8 with the diameter of 0.3mm, and the reflector 6 lens and the horizontal direction form an included angle of 45 degrees and are fixed in the upper lens cone 19.

Specifically, the method comprises the following steps: the center of the focusing lens 7 is provided with a small hole 8 with the diameter of 0.3mm, and the focusing lens 7 and the horizontal direction are fixed in the lower lens barrel 20 with the included angle of 0 degree.

Specifically, the method comprises the following steps: a photoelectric conversion device 10 for performing photoelectric conversion is arranged on the horizontal direction of the lens of the reflecting lens 6, and the CCD camera system is fixed on a connecting rod 12 through a threaded hole I11.

Example 2

The utility model also provides an auxiliary adjusting and positioning method for the slow-speed wire cutting, trimming and processing of the complex special-shaped part, which comprises the following steps:

1) fixing a workpiece on a working platform 3 of the slow-walking wire cutting and processing equipment through an included angle, adjusting an upper nozzle 4 to a proper position, and fixing a CCD system 18 between the upper nozzle 4 and a lower nozzle 9;

2) separating the upper lens barrel 19 from the lower lens barrel 20, then carrying out manual wire threading, and enabling the wire electrode 5 coming out of the upper nozzle 4 to sequentially pass through the upper lens barrel 19, the lower lens barrel 20, the reflecting lens 6 in the lens barrel, the small hole 8 in the lens of the focusing lens 7 and the lower nozzle 9 to complete wire threading;

3) opening the CCD system 18, and adjusting the position of the upper nozzle 4 until a display in the CCD system 18 has a clear picture for clamping a workpiece;

4) guiding a program for cutting and processing complex different-shaped parts by a slow-feeding wire and a feed track into a slow-feeding wire cutting processing machine tool, and adjusting and positioning the workpiece by adjusting the X-axis and Y-axis movement of a working platform 3 according to a processing initial point position in the program;

5) and after the positioning is finished, breaking the wires, removing the CCD system 18, adjusting the position of the upper nozzle 4, and performing slow-walking wire cutting processing.

Specifically, the method comprises the following steps: in the manual threading process, the upper lens barrel 19 and the lower lens barrel 20 which are connected through the threads are separated, and after the threading is finished, the upper lens barrel 19 and the lower lens barrel 20 are connected through the threads.

Specifically, the method comprises the following steps: the aperture 8 in the mirror of the reflecting lens 6 and the focusing lens 7 of the CCD system 18 is concentric with the lower nozzle 9 and the upper nozzle 4. The positioning system of the slow-walking wire cutting and processing device has high controllability for determining the initial point in the process of processing and positioning the complex special-shaped parts, can improve the positioning efficiency, improve the positioning precision of secondary processing and reduce the processing period.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A slow-moving wire cutting device for adjusting positioning, comprising: the device comprises a conductive block device I (1), a conductive block device II (2), an upper nozzle (4), a lower nozzle (9), a connecting rod (12), a baffle (16) and a CCD system (18), wherein the conductive block device I (1) and the conductive block device II (2) are respectively used for installing conductive blocks, the upper nozzle (4), the baffle (16) and the conductive block device I (1) are sequentially connected with one another from bottom to top, the conductive block device II (2) is connected with the lower end of the lower nozzle (9), one end of the connecting rod (12) is connected with the conductive block device I (1), the CCD system (18) is fixed on the connecting rod (12) and located between the upper nozzle (4) and the lower nozzle (9), and the CCD system (18) has a positioning function and can be detached; the workpiece is fixed on the working platform (3) and is positioned below the lower nozzle (9);

the CCD system (18) realizes imaging through an upper lens barrel (19) and a lower lens barrel (20) which are arranged, the lower end of the upper lens barrel (19) is connected with the upper end of the lower lens barrel (20), the upper lens barrel (19) and the lower lens barrel (20) are connected between an upper nozzle (4) and a lower nozzle (9) through an electrode wire (5), wherein the electrode wire (5) penetrates out through the upper nozzle (4), sequentially penetrates through the upper lens barrel (19) and the lower lens barrel (20) from top to bottom and finally penetrates to the lower nozzle (9); the CCD system (18) is used for feeding back the relative position between the workpiece and the wire electrode (5) in real time, and a clear picture for clamping the workpiece appears in a display of the CCD system (18) by adjusting the position of the upper nozzle (4), so that the workpiece is quickly positioned.

2. The slow-speed wire cutting machining device for adjusting positioning according to claim 1, wherein a positioning fixing groove (17) for positioning and fixing is formed in the conductive block device I (1), a square key (14) for fixing is arranged at the fixing end of the connecting rod (12), at least one threaded hole II (13) is formed in the square key (14), a screw is connected into the threaded hole II (13) in a matched mode, the square key (14) is inserted into the fixing groove (17), and the connecting rod (12) and the conductive block device I (1) are pressed and fixed through the threaded hole II (13) and the screw; the fixing groove (17) and the square key (14) are positioned through the smooth end surface (15) of the square key (14).

3. The slow wire cutting machine for adjusting positioning according to claim 2, characterized in that the square key (14) and the connecting rod (12) are of a one-piece structure.

4. The slow wire cutting machine for adjusting positioning according to claim 2 or 3, wherein the length of the fixing groove (17) is greater than that of the square key (14).

5. The slow-speed wire cutting device for adjusting and positioning according to claim 1, wherein the upper barrel (19) is screwed with the lower barrel (20).

6. The slow-speed wire cutting machining device for adjusting and positioning according to claim 1 or 5, characterized in that a reflecting lens (6) is fixed in the upper lens barrel (19), a focusing lens (7) is fixed in the lower lens barrel (20), and the upper lens barrel (19) and the lower lens barrel (20) are concentric.

7. The slow-walking wire cutting machining device for adjusting and positioning according to claim 6, wherein a small hole (8) with the diameter of 0.3mm is formed in the center of the lens of the reflecting lens (6), the lens of the reflecting lens (6) is fixed in the upper lens barrel (19) at an included angle of 45 degrees with the horizontal direction, the wire electrode (5) penetrates through the small hole (8), and the small hole (8) is concentric with the lower nozzle (9) and the upper nozzle (4).

8. The slow-speed wire cutting machining device for adjusting and positioning according to claim 6, wherein a small hole (8) of 0.3mm is formed in the center of the lens of the focusing lens (7), the lens of the focusing lens (7) is fixed in the lower lens barrel (20) at an included angle of 0 degrees with the horizontal direction, the wire electrode (5) penetrates through the small hole (8), and the small hole (8) is concentric with the lower nozzle (9) and the upper nozzle (4).

9. The slow-speed wire cutting and processing device for adjusting and positioning according to claim 1, wherein a photoelectric conversion device (10) for photoelectric conversion is further provided on the CCD system (18) and is located in a horizontal direction of the mirror of the reflection lens (6).

10. The slow-walking wire cutting machining device for adjusting and positioning as claimed in claim 1 or 9, wherein the connecting rod (12) is provided with a threaded hole I (11), a bolt is fittingly connected in the threaded hole I (11), and the CCD system (18) is fixed on the connecting rod (12) through the threaded hole I (11) and the bolt.