CN217859403U

CN217859403U - Laser cutting machine for thin needle tube wall

Info

Publication number: CN217859403U
Application number: CN202221531903.9U
Authority: CN
Inventors: 吴斌; 杨军军; 俞子繁; 沈堤; 段程洋
Original assignee: Shanghai 3k Laser Technology Co ltd
Current assignee: Shanghai 3k Laser Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-22
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a fine needle pipe wall laser cutting machine belongs to laser perforating device technical field. Including rack and needle tubing, be provided with Z axle elevating platform on the rack, adjust fixing device, PLC control touch screen display panel, laser instrument and the mirror that shakes, Z axle elevating platform sets up perpendicularly on the rack, the mirror that shakes sets up the front end at the laser instrument, the laser instrument slides and sets up on Z axle elevating platform, adjust fixing device and set up under the mirror that shakes, it includes rotating electrical machines to adjust fixing device, anchor clamps, three-dimensional high accuracy adjustment platform and locating plate, anchor clamps set up the one end at rotating electrical machines, PLC control touch screen display panel and rotating electrical machines electric connection, the locating plate sets up the higher authority at three-dimensional high accuracy adjustment platform. Through setting up a fine needle pipe wall laser cutting machine, improved cutting precision and production efficiency of punching.

Description

Laser cutting machine for thin needle tube wall

Technical Field

The utility model relates to a fine needle pipe wall laser cutting machine belongs to laser perforating device technical field.

Background

Traditional cutting is very thin because 0.7 mm's diameter syringe needle, and the thin easy perforation of needle tubing wall and heat altered shape, choose for use traditional cutting mode can cut apart the cutting to the point of arranging, it can lead to some interval distances inequality to cut apart to have the calculation error, arrange inequality, traditional dotting cutting clamping precision is not high, very easily lead to the concentricity deviation, because of the needle tubing is tiny, laser can not cut and can lead to facula size nonconformity and facula interval inequality in concentric position, thereby the qualification rate of product has been reduced, can not increase the point at will and reduce the point during traditional cutting, can not change the angle at will during the rotation, must fill up central point position when traditional cutting clamping and reduce the error, need fill up the position again when cutting next product, inconvenient quick clamping, therefore can not realize batch production during the cutting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the utility model provides a fine needle pipe wall laser cutting machine, it has solved among the prior art problem that the dotting cutting precision is not high and production efficiency is low.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

a laser cutting machine for the wall of a fine needle tube comprises a machine cabinet and a needle tube, wherein a Z-axis lifting table, an adjusting and fixing device, a PLC (programmable logic controller) control touch screen display panel, a laser and a galvanometer are arranged on the machine cabinet;

the Z-axis lifting platform is vertically arranged on the machine cabinet, the vibrating mirror is arranged at the front end of the laser, the laser is arranged on the Z-axis lifting platform in a sliding manner, and the adjusting and fixing device is arranged right below the vibrating mirror;

the adjusting and fixing device comprises a rotating motor, a clamp, a three-dimensional high-precision adjusting table and a positioning plate, the clamp is arranged at one end of the rotating motor, the PLC controls the touch screen display panel to be electrically connected with the rotating motor, and the positioning plate is arranged on the three-dimensional high-precision adjusting table.

As a preferable example, the three-dimensional high-precision adjusting table comprises an adjusting table, an adjusting rod and a top plate, and the adjusting table is provided with elongated through holes matched with the adjusting rod in the X-axis direction, the Y-axis direction and the Z-axis direction.

As a preferred example, the laser is a 5w UV laser generator.

As a preferred example, the laser is a 355nm short wavelength laser.

As a preferable example, a scale body is arranged on the Z-axis lifting platform along the height direction of the Z-axis lifting platform, and a measuring claw matched with the scale body is arranged on one side of the laser.

As a preferred example, the bottom of the adjusting fixture is further provided with a bottom plate.

The utility model has the advantages that:

1. the utility model provides a device adopts laser cutting to focus into very little facula with the laser beam, make focus department reach very high energy density, make thin needle tubing surface gasification evaporation form the pit in the twinkling of an eye, reach the effect of cutting the blind hole, laser cutting belongs to non-contact cutting, to the blind hole internal reaction during cutting, do not hinder to the blind hole periphery, the energy density of facula is big, the operating time is short, the heat affected zone is little, the minimum diameter of facula can be controlled within 0.02mm, the cutting seam is narrow, high accuracy, the blind hole circularity of beating out is smooth, surface finish is better, need not the back end process after the cutting and handle, especially adapted precision finishing, laser cutting is owing to need not the contact, therefore inertia is little, can reach very fast process speed, this laser equipment self is equipped with one set of computer system, the user can conveniently utilize the software drawing cutting figure of system self-carrying, perhaps directly from the leading-in design DXF/PLT AI file in the outside, it is convenient to save time, cutting efficiency has greatly been improved.

2. The laser adopts a 5w ultraviolet laser generator, has low power, is energy-saving and environment-friendly, and can greatly reduce the cost for small-batch production.

3. The laser type adopts a 355nm short light wave laser, the heat applied to the thin needle tube is lower, the deformation of the needle tube is small, the consistency of the blind hole in the cutting process is good, the edge effect is clear, and no burr is arranged in the center of the hole.

4. The Z-axis lifting platform is provided with a scale body along the height direction of the Z-axis lifting platform, and one side of the laser is provided with a measuring jaw matched with the scale body, so that the Z-axis lifting platform can be more accurately focused to lift.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of the adjusting fixture;

fig. 4 is a schematic structural diagram of a three-dimensional high-precision adjusting table.

In the figure: 1. a cabinet; 2. a needle tube; 3. a Z-axis lifting table; 31. a scale body; 32. a slide plate; 33. a measuring jaw; 4. adjusting the fixing device; 41. a rotating electric machine; 411. a mounting seat; 412. a first mounting plate; 42. a clamp; 43. a three-dimensional high-precision adjusting table; 431. an adjusting table; 432. adjusting a rod; 433. a top plate; 434. a second mounting plate; 44. positioning a plate; 441. a fixing groove; 5. the PLC controls the touch screen display panel; 6. a laser; 7. a galvanometer; 8. a base plate.

Detailed Description

In order to understand the technical means, creation features, achievement purposes and functions of the present invention easily, the present invention will be further explained by combining with the specific drawings.

As shown in fig. 1-4, a laser cutting machine for thin needle tube walls comprises a cabinet 1 and a needle tube 2, wherein the cabinet 1 is provided with a Z-axis lifting table 3, an adjusting and fixing device 4, a PLC-controlled touch screen display panel 5, a laser 6 and a galvanometer 7.

Z axle elevating platform 3 welds perpendicularly on rack 1 upper surface, shakes the front end that mirror 7 set up at laser instrument 6, and laser instrument 6 slides and sets up on Z axle elevating platform 3, sets up electronic focusing device on Z axle elevating platform 3, adopts the auto focus elevating system, and the precision of focusing is at 0.02mm, makes the blind hole degree of depth of beating keep unanimous. The Z-axis lifting table 3 is provided with a scale body 31 along the height direction, one side of the laser 6 is provided with a sliding plate 32, the inside of the Z-axis lifting table 3 is provided with a ball screw, the sliding plate 32 is connected with the Z-axis lifting table 3 through the ball screw, and one side of the sliding plate 32 is provided with a measuring claw 33 matched with the scale body 31.

The laser 6 is a 5w ultraviolet laser generator, the laser 6 is a 355nm short-wavelength laser 6, the ultraviolet laser 6 with smaller light spots is adopted, the heat is lower, and the surface of the fine needle is not easy to deform when irradiated. The depth of cut can be controlled by adjusting the output power of the laser 6 and the cutting speed. The larger the output power of the laser 6, the slower the cutting speed, the greater the depth of cut, and conversely, the shallower the depth.

The device is also provided with a computer system, so that a user can conveniently draw and cut graphs by using the software carried by the system, or directly import designed DXF/PLT/AI files from the outside, thereby realizing personalized processing, saving time and being convenient, and greatly improving the cutting efficiency.

A high-power smoke purifier is arranged near the cutting position, smoke and dust are effectively removed, and the purification and filtration of 0.3 mu m particles can reach 99.99%.

The automatic focusing is a method that utilizes the principle of object light reflection, reflected light is received by a sensor CCD on a camera, and an electric focusing device is driven to focus through computer processing, namely automatic focusing.

The galvanometer 7 consists of an X-Y optical scanning head, an electronic driving amplifier and an optical reflecting mirror, and signals provided by a computer controller drive the optical scanning head through a driving amplifying circuit so as to control the deflection of laser beams on an X-Y plane.

In a laser demonstration system, the waveform of the optical scanning is a vector scanning, and the scanning speed of the system determines the stability of the laser pattern.

The scanning pattern is a two-dimensional effect pattern, so that the scanning motor is controlled by an X motor and a Y motor, the position of one point is determined at one moment, the position of the point at different moments is controlled by scanning frequency to achieve the conversion of the whole scanning pattern, and the pattern flicker is more obvious when the scanning frequency is lower.

The adjusting and fixing device 4 is arranged right below the galvanometer 7. The adjusting and fixing device 4 comprises a rotating motor 41, a clamp 42, a three-dimensional high-precision adjusting table 43 and a positioning plate 44, wherein the clamp 42 is a three-jaw chuck.

The three-jaw chuck consists of a chuck body, movable jaws and a jaw driving mechanism, wherein threads are meshed with plane threads on the back of a butterfly bevel gear below guide parts of the three jaws on the three-jaw chuck, when a spanner rotates the small bevel gear through a square hole, the butterfly gear rotates, the plane threads on the back simultaneously drive the three jaws to approach to or withdraw from the center so as to clamp workpieces with different diameters, and the self-centering accuracy of the three-jaw chuck is 0.05-0.15mm.

Anchor clamps 42 sets up the one end at rotating electrical machines 41, and rotating electrical machines 41 can drive anchor clamps 42 and drive needle tubing 2 and rotate, and PLC control touch screen display panel 5 and rotating electrical machines 41 electric connection set for the number of equally divided circles of rotating electrical machines 41 through PLC control touch screen display panel 5 that has designed, can accomplish the accurate evenly distributed of blind spot on the needle tubing 2.

The three-dimensional high-precision adjusting table 43 comprises an adjusting table 431, an adjusting rod 432 and a top plate 433, wherein the adjusting table 431 is provided with strip-shaped through holes matched with the adjusting rod 432 in the X-axis direction, the Y-axis direction and the Z-axis direction, a moving mechanism is arranged in the adjusting table 431, the top plate 433 is connected with the moving mechanism in the adjusting table 431, and the movement of the top plate 433 in three directions can be controlled by shifting the adjusting rod 432 in the X-axis direction, the Y-axis direction and the Z-axis direction.

Locating plate 44 welds on roof 433, and the fixed slot 441 has been seted up along its length direction to the upper surface of locating plate 44, and fixed slot 441 on the locating plate 44 cooperates with the needle tubing 2 is unsmooth, wraps up needle tubing 2, under the combined action of rotating electrical machines 41, realizes the accurate positioning. The position of the laser beam irradiated on the needle tube 2 is adjusted by adjusting the three-dimensional adjusting table 431 in the three directions of X, Y and Z so that the straight line projected by the galvanometer 7 is completely horizontal to the needle tube 2 and the rotating motor 41, and the high-precision center is coaxial during rotation.

The bottom plate 8 is welded to the bottom of the adjusting and fixing device 4, the mounting seat 411 is arranged at the bottom of the rotating motor 41, the first mounting plate 412 is arranged at the bottom of the mounting seat 411, the second mounting plate 434 is arranged at the bottom of the three-dimensional high-precision adjusting table 43, and the first mounting plate 412 and the second mounting plate 434 are welded to the surface of the bottom plate 8.

The working principle is as follows: one end of a needle tube 2 is placed into a clamp 42, the clamp 42 is adjusted to clamp one end of the needle tube 2, a three-dimensional adjusting table 431 is operated and adjusted to adjust the X, Y and Z directions, so that the needle tube 2 and a rotating motor 41 are in the same horizontal position, the number of equally divided circles of the rotating motor 41 is set on a PLC control touch screen display panel 5, a cutting graph is drawn by software carried by the system, or externally designed DXF/PLT/AI files are directly led into a computer system, an electric focusing device on a Z-axis lifting table 3 is started, laser is accurately corresponding to the needle tube 2, the rotating motor 41 drives the needle tube 2 to rotate, after various parameters and cutting positions of a laser 6 are adjusted, a whole row of blind spots can be cut in a swinging mode through a high-precision mirror 7, blind holes with the same size and distance can be punched on the needle tube 2 by combining the equally divided circles designed on the rotating motor 41, a smoke purifier purifies smoke and dust at the punched holes of the needle tube 2, and the smoke and dust are small in noise, pollution-free and high-efficiency clean processing can be achieved, and precise cutting blind spots and punching and production can be achieved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A laser cutting machine for the wall of a fine needle tube comprises a cabinet (1) and a needle tube (2), and is characterized in that a Z-axis lifting table (3), an adjusting and fixing device (4), a PLC (programmable logic controller) control touch screen display panel (5), a laser (6) and a galvanometer (7) are arranged on the cabinet (1);

the Z-axis lifting platform (3) is vertically arranged on the cabinet (1), the vibrating mirror (7) is arranged at the front end of the laser (6), the laser (6) is arranged on the Z-axis lifting platform (3) in a sliding manner, and the adjusting and fixing device (4) is arranged right below the vibrating mirror (7);

the adjusting and fixing device (4) comprises a rotating motor (41), a clamp (42), a three-dimensional high-precision adjusting table (43) and a positioning plate (44), the clamp (42) is arranged at one end of the rotating motor (41), the PLC controls the touch screen display panel (5) to be electrically connected with the rotating motor (41), and the positioning plate (44) is arranged on the three-dimensional high-precision adjusting table (43).

2. The laser cutting machine for the fine needle tube wall as claimed in claim 1, wherein the three-dimensional high-precision adjusting table (43) comprises an adjusting table (431), an adjusting rod (432) and a top plate (433), and the adjusting table (431) is provided with elongated through holes in X, Y and Z axis directions, which are matched with the adjusting rod (432).

3. A laser cutting machine for fine needle tube walls according to claim 1, characterized in that the laser (6) is a 5w uv laser generator.

4. A laser cutting machine for fine needle tube walls according to claim 3, characterized in that the laser (6) is a 355nm short wavelength laser.

5. The laser cutting machine for the thin needle tube wall as claimed in claim 1, wherein a scale body (31) is arranged on the Z-axis lifting table (3) along the height direction of the Z-axis lifting table, and a measuring jaw (33) matched with the scale body (31) is arranged on one side of the laser (6).

6. The laser cutting machine for fine needle tube walls according to claim 1, characterized in that the bottom of the adjusting and fixing device (4) is further provided with a bottom plate (8).