Art knife laser quenching device

Abstract

The utility model discloses an art knife laser quenching device which comprises a working table, a sealing box, a sapphire lens window and an art knife sample piece, a driving assembly capable of driving the art knife sample piece to move is arranged in the sealing box, and a protection support is further arranged at the top of the working table. A laser capable of being movably adjusted is arranged on the protection support, the laser is provided with two laser heads, and one laser can control the two laser heads to synchronously quench the two sides of an art knife sample piece at the same time. According to the art knife laser quenching device, the laser device is provided with the two laser heads, and the two sides of an art knife sample piece can be synchronously quenched at the same time; through cooperation of the laser modulator and the beam shaper, it is ensured that energy is evenly distributed in the quenching process, nitrogen is introduced into the sealing box to serve as shielding gas, oxidation of the tool in the quenching process is effectively prevented, and meanwhile cold nitrogen is used for conducting cooling and nitriding treatment on the tool in the quenching process.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser surface strengthening treatment technical field, specifically a kind of laser quenching device of art knife. BACKGROUND

[0002] Laser surface quenching technology, also known as laser heat treatment or laser surface phase transformation hardening process, by laser irradiation metal workpiece surface, make its surface rapid heating, reach phase transition temperature above, utilize the characteristics of high thermal conductivity of metal, heat conduction fast rapidly quenching, make austenite transform into fine martensite organization, simultaneously residual in hardening layer there is larger compressive stress, make material surface hardening, to improve the wear resistance and service life of material surface. Since laser surface quenching technology cooling speed is fast, it does not need water, oil and other cooling medium, so the technology belongs to self-cooling quenching process.

[0003] However, the existing laser quenching device has problems such as poor quenching uniformity, tool deformation, high oxidation risk and the like when processing art knives and other thin-walled tools. In addition, the traditional device can usually only quench the tool on one side, and it is difficult to realize synchronous processing of both sides, resulting in limited improvement of tool performance. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above-mentioned problems or at least partially solving the above-mentioned problems, and proposes a laser quenching device for art knives.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laser quenching device for art knives, comprising a workbench, a sealed box, a sapphire lens window and an art knife sample, the sealed box is arranged on the top of the base plate, the sapphire lens window is inlaid in the middle of the sealed box, the art knife sample is arranged through the sealed box, a driving assembly capable of driving the art knife sample to move is arranged in the sealed box, a protection support is further arranged on the top of the workbench, a laser capable of moving and adjusting is arranged on the protection support, the laser is provided with two laser heads, and the laser can control the two laser heads to quench the two sides of the art knife sample simultaneously.

[0006] In a preferred embodiment, the driving assembly comprises a base plate arranged between the workbench and the sealed box, a plurality of pairs of rotating shafts are arranged on the base plate, each pair of rotating shafts comprises two rotating shafts, the rotating shafts extend into the sealed box, pulleys are arranged on the top of the rotating shafts, and the bottom of the rotating shafts extends into the workbench, and the pulleys on each pair of rotating shafts clamp the art knife sample.

[0007] In a preferred embodiment, a lead screw is arranged on the inner side of the protection support, a movable sliding table matched with the lead screw is arranged on the lead screw, and the laser is arranged at the bottom of the movable sliding table.

[0008] In a preferred embodiment, the laser further comprises a laser modulator, a beam shaper, a mirror and a half-mirror, the laser outputs laser, changes the parameters of the laser through the laser modulator, then changes the circular spot into a rectangular spot through the beam shaper, and then passes one beam of laser and reflects another beam of laser through the half-mirror, and finally emits the two beams of laser from the two laser heads through the mirror.

[0009] In a preferred embodiment, the utility model further includes gas cylinder holder, nitrogen cylinder, pressure reducing valve, gas pipe and reflux gas pipe, the gas cylinder holder is arranged outside the workbench, the nitrogen cylinder is packed in the gas cylinder holder, the pressure reducing valve is arranged at the nitrogen cylinder gas outlet, one end of the pressure reducing valve is connected with the gas pipe, and the other end of the gas pipe extends to the middle of the inner cavity of the sealed box, the reflux port of the nitrogen cylinder is provided with one end of the reflux gas pipe, and the other end of the reflux gas pipe extends to the inner cavity side wall of the sealed box.

[0010] Compared with the prior art, the utility model provides a laser quenching device for art knife, the laser is equipped with two laser heads, can simultaneously quench the two sides of art knife sample, ensures the consistency of the hardness and performance of the cutter, avoids the deformation problem caused by single side quenching, adjusts the circular spot to rectangular spot through the cooperation of laser modulator and beam shaper, and accurately control laser parameters, ensures that the energy is uniformly distributed in the quenching process, improves the quality of the hardened layer, and the nitrogen gas is introduced into the sealed box as the protective gas, effectively prevents the oxidation of the cutter in the quenching process, and the cold nitrogen gas cools and nitriding treatment to the cutter in the quenching process, further improves the hardness and wear resistance of the cutter. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0012] Fig. 2 It is the three-dimensional structure schematic diagram of the utility model pivot and pulley;

[0013] Fig. 3 It is the process schematic diagram of laser control system of the utility model laser guiding laser.

[0014] In the drawing: 1, gas pipe; 2, protection support; 3, mobile slide; 4, screw; 5, pressure reducing valve; 6, nitrogen cylinder; 7, art knife sample; 8, gas cylinder holder; 9, workbench; 10, laser head; 11, sapphire lens window; 12, sealed box; 13, reflux gas pipe; 14, laser; 15, pulley; 16, pivot; 17, base plate; 18, laser modulator; 19, beam shaper; 20, mirror; 21, half-mirror. DETAILED DESCRIPTION

[0015] The utility model discloses a further in detail below in combination with the drawings.

[0016] The embodiment is only an interpretation of the utility model, and does not limit the utility model, and the person skilled in the art can make creative contribution modification according to the needs after reading the description, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

[0017] The utility model discloses a kind of art knife laser quenching devices, solve the technical problem in prior art, overall idea is as follows:

[0018] Embodiment one:

[0019] Please refer to Figs. 1-3 A kind of art knife laser quenching device, including workbench 9, sealed box 12, sapphire lens window 11 and art knife sample 7, sealed box 12 is set at the top of base plate 17, sapphire lens window 11 is embedded in the middle of sealed box 12, art knife sample 7 is set through from sealed box 12, sealed box 12 is provided with the drive assembly that can drive art knife sample 7 moves, workbench 9 top is also provided with protective bracket 2, protective bracket 2 is provided with a movable laser 14 of adjustment, laser 14 is provided with two laser heads 10, one laser 14 can control two laser heads 10 simultaneously quenching the two sides of art knife sample 7 synchronously.

[0020] Specific implementation, drive assembly includes the base plate 17 between workbench 9 and sealed box 12, base plate 17 is provided with a plurality of rotation shafts 16, and the number of each pair of rotation shaft 16 is two, rotation shaft 16 extends to sealed box 12, rotation shaft 16 top is provided with pulley 15, and its bottom extends to workbench 9, pulley 15 on each pair of rotation shaft 16 clamps art knife sample 7, uses the power source in the inside of workbench 9 to control rotation shaft 16 and pulley 15 rotation, pulley 15 can move the art knife sample 7 of clamping, realizes the automation of laser quenching process.

[0021] Specific implementation, the inside of protective bracket 2 is provided with lead screw 4, lead screw 4 is provided with the mobile sliding table 3 of adaptation, laser 14 is set at the bottom of mobile sliding table 3, by outside control lead screw 4 rotation drives mobile sliding table 3 to move, realizes the position adjustment of laser 14.

[0022] In the embodiment, the laser modulator 18, the beam shaper 19, the mirror 20 and the half-mirror 21 are further included in the laser 14. The laser 14 outputs laser, and the laser modulator 18 changes the frequency and pulse width of the laser. The beam shaper 19 changes the circular spot into a rectangular spot, so as to ensure the uniformity of the laser quenching cutter surface. The half-mirror 21 ensures that two laser heads output laser with equal energy density at the same time, so as to ensure the consistency of the laser quenching effect on both sides of the cutter. Finally, the mirror 20 outputs the two beams of laser from the two laser heads 10, so as to uniformly quench the cutter from both sides.

[0023] In the embodiment, the gas cylinder rack 8, the nitrogen cylinder 6, the pressure reducing valve 5, the gas pipe 1 and the backflow pipe 13 are further included. The gas cylinder rack 8 is arranged outside the workbench 9, the nitrogen cylinder 6 is arranged in the gas cylinder rack 8, the pressure reducing valve 5 is arranged at the gas outlet of the nitrogen cylinder 6, one end of the gas pipe 1 is connected with the pressure reducing valve 5, the other end of the gas pipe 1 extends to the middle of the inner cavity of the sealed box 12, one end of the backflow pipe 13 is arranged at the backflow port of the nitrogen cylinder 6, and the other end of the backflow pipe 13 extends to the inner cavity side wall of the sealed box 12. The laser quenching process is carried out in the sealed box 12. The laser is transmitted through the sapphire lens window 11 to the cutter sample 7 for laser quenching treatment. The cold nitrogen released by the nitrogen cylinder 6 not only acts as a protective gas to prevent the cutter from being oxidized, but also cools the cutter during the laser quenching process. The cold nitrogen is subjected to nitriding treatment when meeting the hot cutter after the laser quenching treatment, so as to improve the hardness and wear resistance of the cutter. The unreacted nitrogen is circulated to the sealed box 12 through the backflow pipe 13 for circulation, so as to improve the utilization rate of nitrogen. The pressure reducing valve 5 is used to adjust the nitrogen flow, so as to control the uniformity of nitriding.

[0024] The above description of the embodiments is for the purpose of facilitating the understanding and use of the present application by those skilled in the art. Those skilled in the art can easily make various modifications to the embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the present application is not limited to the above embodiments. Those skilled in the art can make improvements and modifications to the present application without departing from the scope of the present application.

Claims

1. A laser quenching apparatus for a utility knife, comprising: It includes a workbench (9), a sealed box (12), a sapphire lens window (11) and a knife-like piece (7), the sealed box (12) is arranged on the top of the base plate (17), the sapphire lens window (11) is inlaid in the middle of the sealed box (12), the knife-like piece (7) is arranged through the sealed box (12), the sealed box (12) is provided with a driving assembly capable of driving the knife-like piece (7) to move, the top of the workbench (9) is further provided with a protection support (2), the protection support (2) is provided with a movable laser (14), the laser (14) is provided with two laser heads (10), one laser (14) can control two laser heads (10) to quench the two sides of the knife-like piece (7) synchronously.

2. The laser quenching apparatus for a utility knife according to claim 1, wherein: The driving assembly includes a base plate (17) arranged between the workbench (9) and the sealed box (12), a plurality of rotating shafts (16) are arranged on the base plate (17), the number of each pair of rotating shafts (16) is two, the rotating shafts (16) extend into the sealed box (12), the top of the rotating shaft (16) is provided with a pulley (15), and the bottom of the rotating shaft (16) extends into the workbench (9), and the pulleys (15) on each pair of rotating shafts (16) clamp the knife-like piece (7).

3. The laser quenching apparatus for a utility knife of claim 2, wherein: The inside of the protection support (2) is provided with a lead screw (4), the lead screw (4) is provided with a matched movable sliding table (3), and the laser (14) is arranged at the bottom of the movable sliding table (3).

4. The laser quenching apparatus for a utility knife of claim 3, wherein: The laser (14) further includes a laser modulator (18), a beam shaper (19), a reflecting mirror (20) and a half-mirror (21), the laser (14) outputs laser, changes the parameters of the laser through the laser modulator (18), then changes the circular light spot into a rectangular light spot through the beam shaper (19), then passes one beam of 50% laser and reflects another beam of 50% laser through the half-mirror (21), and finally emits two beams of laser from the two laser heads (10) through the reflecting mirror (20).

5. The laser quenching apparatus for a utility knife according to any one of claims 1-4, wherein: It also includes a gas cylinder rack (8), a nitrogen cylinder (6), a pressure reducing valve (5), a gas pipe (1) and a backflow gas pipe (13), the gas cylinder rack (8) is arranged outside the workbench (9), the nitrogen cylinder (6) is arranged in the gas cylinder rack (8), the pressure reducing valve (5) is arranged at the gas outlet of the nitrogen cylinder (6), one end of the pressure reducing valve (5) is connected with the gas pipe (1), the other end of the gas pipe (1) extends to the middle of the inner cavity of the sealed box (12), the backflow port of the nitrogen cylinder (6) is provided with one end of the backflow gas pipe (13), and the other end of the backflow gas pipe (13) extends to the inner cavity side wall of the sealed box (12).

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