阅读说明：本技术 一种电力金具激光强化装置及方法 (Laser strengthening device and method for electric power fitting ) 是由 王欣欣 张陵 何成 张博 魏晌 庄凌志 赵建平 金杨福 谢颂伟 于 2021-08-10 设计创作，主要内容包括：本发明公开了一种电力金具激光强化装置及方法,装置包括激光强化头,用于向电力金具的强化区域发射激光；夹持装置,用于固定装夹电力金具使激光射向强化区域；反射装置,用于反射激光至其无法直射到的强化区域,强化区域设置在所述反射装置的反射面与激光强化头之间。本发明具有如下有益效果：(1)设置反射装置一次性实现全方向辐照,效率高；(2)激光光斑超过强化区域的部分均能够被反射装置反射至强化区域上,激光利用率高；(3)反射装置角度可调,激光辐照充分且均匀,产品表面质量高；(4)通过设置夹持装置,快速稳定固定电力金具；(5)结构简单,使用操作简单方便。(The invention discloses a laser strengthening device and method for an electric power fitting, wherein the device comprises a laser strengthening head, a laser strengthening head and a laser strengthening head, wherein the laser strengthening head is used for emitting laser to a strengthening area of the electric power fitting; the clamping device is used for fixedly clamping the electric power fitting so that the laser can shoot to the strengthening area; the reflection device is used for reflecting the laser to a strengthening area which cannot be directly irradiated by the reflection device, and the strengthening area is arranged between the reflection surface of the reflection device and the laser strengthening head. The invention has the following beneficial effects: (1) the reflecting device is arranged to realize omnidirectional irradiation once, so that the efficiency is high; (2) the part of the laser spot exceeding the strengthening area can be reflected to the strengthening area by the reflecting device, so that the laser utilization rate is high; (3) the angle of the reflecting device is adjustable, the laser irradiation is sufficient and uniform, and the surface quality of the product is high; (4) the electric power fitting is quickly and stably fixed by arranging the clamping device; (5) simple structure, easy and convenient use and operation.)

1. A laser strengthening device for electric power fittings is characterized by comprising:

the laser strengthening head (1) is used for emitting laser to a strengthening area of the electric power fitting;

the clamping device (2) is used for fixing and clamping the electric power fitting so that laser can shoot to a strengthening area;

the reflection device (3) is used for reflecting the laser to a strengthening area which cannot be directly irradiated by the reflection device, and the strengthening area is arranged between the reflection surface of the reflection device (3) and the laser strengthening head (1).

2. The laser strengthening device for electric power fittings according to claim 1, wherein the reflector (31) is rotatably connected to the reflector (3).

3. The laser strengthening device for the electric power fittings according to claim 2, wherein the number of the reflectors (31) is two, and the two reflectors (31) are symmetrically arranged on two sides of the strengthening area.

4. The laser strengthening device for the electric power fittings according to claim 3, wherein the reflection device (3) further comprises a base (38), two support plates (32) and a screw transmission mechanism, the support plates (32) are rotatably connected with the base (38), the reflection mirror (31) is fixed on the support plates (32), the two support plates (32) are linked with the screw transmission mechanism, and the two support plates (32) synchronously rotate relative to each other or oppositely rotate along with the rotation of the screw.

5. The laser strengthening device for the electric power fittings according to claim 1, wherein the clamping device (2) comprises a fixed seat (21) and a sliding block (22), the sliding block (22) is slidably disposed on the fixed seat (21), the sliding block (22) and the fixed seat (21) are both provided with a V-shaped groove (23), openings of the V-shaped grooves (23) are oppositely arranged, the fixed seat (21) is provided with a limiting boss (211), the reflection device (3) is fixed between the fixed seat (21) and the sliding block (22), the fixed seat (21) is in threaded connection with a fixing screw (24), and one end of the fixing screw (24) is attached to the sliding block (22).

6. The laser strengthening device for electric power fittings of claim 1, wherein the reflecting mirror (31) is a plane mirror or a concave mirror.

7. The laser strengthening method for the electric power fittings according to any one of claims 1 to 6, which is characterized by comprising the following steps:

s1, fixing an electric power fitting on a clamping device, and aligning laser emitted by a laser strengthening head to a strengthening area;

s2, adjusting the position of a reflecting surface of the reflecting device (3) to ensure that the laser can cover a strengthened area which cannot be directly irradiated after being reflected;

and S3, performing laser strengthening on the electric power fitting set in the step S2 through a laser strengthening head (1).

8. The laser strengthening method for electric power fittings according to claim 7, wherein when the reflection device (3) comprises two plane mirrors (31) with two symmetrical surfaces, the included angle between the two plane mirrors (31) is 60-120 °.

9. The laser strengthening method for electric power fittings of claim 7, wherein the laser irradiation time is 3-5 s, and the laser power density is 5-10W/mm²。

10. The method of claim 7, wherein the step S3 further comprises: the reflecting surface is rotated in the laser strengthening process, so that the strengthened area is ensured to be irradiated by uniform laser.

Technical Field

The invention relates to the technical field of electric power fitting processing, in particular to a laser strengthening device and method for an electric power fitting.

Background

The power transmission lines in many domestic areas are seriously influenced by strong wind, which causes that parts of stressed parts on power transmission equipment are subjected to huge force, thereby causing the abrasion of the parts, and researches show that electric power fittings such as U-shaped rings of ground wires and optical cable hanging points in the power transmission lines are abraded in different degrees, and the occupation ratio of the abraded parts is up to 10%. Taking the U-shaped ring as an example, the U-shaped ring includes an arc section at the middle bottom, and two ends of the arc section extend to the same side to form a cylindrical section. Because the circumference of the circular arc section of the U-shaped ring needs to be strengthened and the laser is transmitted linearly, the conventional laser strengthening method usually keeps a laser head fixed and needs to ensure that the circumference of the circular arc section obtains laser radiation by rotating the U-shaped ring. Meanwhile, the electric power fitting with the large volume is driven to rotate, so that the complexity and the operation difficulty of the device are increased.

For example, the disclosure of the "ultrasonic laser composite surface strengthening device" in chinese patent literature includes a laser coaxial powder feeding cladding head, an ultrasonic vibration module, a rotation driving module, a three-axis motion module, and a base, in which the publication number CN112430810A is set; the ultrasonic vibration module and the rotation driving module are all fixedly arranged on the base, the ultrasonic vibration module and the rotation driving module are arranged on the base in a relative mode, the three-axis movement module is arranged on the base and movably connected with the base, and the laser coaxial powder feeding cladding head is arranged on the three-axis movement module and located above the ultrasonic vibration module. The method has the disadvantages of long processing time, low efficiency, easy laser waste or surface quality, large device volume and complex operation.

Disclosure of Invention

The invention provides a laser strengthening device and method for an electric power fitting, aiming at overcoming the problems of large size, complex operation, low strengthening method efficiency and low laser utilization rate of the laser strengthening device in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electric power fitting laser strengthening device comprises:

the laser strengthening head is used for emitting laser to a strengthening area of the electric power fitting;

the clamping device is used for fixedly clamping the electric power fitting so that the laser can shoot to the strengthening area;

the reflection device is used for reflecting the laser to a strengthening area which cannot be directly irradiated by the reflection device, and the strengthening area is arranged between the reflection surface of the reflection device and the laser strengthening head.

The invention is characterized in that the laser strengthening head is arranged to emit laser beams to strengthen the semi-circumference surface of the strengthening area of the electric power fitting, the laser beams which do not act on the strengthening area are reflected to the other semi-circumference surface of the strengthening area of the electric power fitting through the reflecting device, the strengthening and reflecting device is arranged on the semi-circumference surface, the strengthening of the electric power fitting is carried out for 360 degrees in the circumferential direction at one time, and the strengthening efficiency is high; meanwhile, a reflecting device is adopted to reflect the laser beam of which the edge cannot directly act on the hardware fitting to other strengthening areas, so that the laser utilization rate is improved; in the laser strengthening process, the electric power fitting does not need to be rotated, the operation is simpler and more convenient, the structure is simpler, and the size of the device is reduced.

Preferably, a mirror is rotatably connected to the reflecting device.

The laser reflection angle is adjusted by rotating the reflector, so that the laser reflection angle is suitable for electric power fittings of different sizes on the one hand, the strengthening area is guaranteed to be strengthened, on the other hand, the reflector is rotated while strengthening to guarantee that the surface of the electric power fitting in the strengthening area can be irradiated by the laser of vertical incidence, and the strengthening effect is good.

Preferably, the reflecting mirrors comprise two reflecting mirrors, and the two reflecting mirrors are symmetrically arranged on two sides of the strengthening area.

The electric power fittings are generally symmetrically arranged, and the symmetrical reflectors ensure that the irradiation intensities of the strengthened areas on the two sides are consistent.

Preferably, the reflecting device further comprises a base, two supporting plates and a screw transmission mechanism, the supporting plates are rotatably connected with the base, the reflecting mirror is fixed on the supporting plates, the two supporting plates are linked with the screw transmission mechanism, and the two supporting plates synchronously rotate oppositely or reversely rotate along with the rotation of the screw.

The angles of the two supporting plates are accurately adjusted simultaneously by rotating the screw rod, so that the two-sided reflecting mirror is driven to do mirror motion, and the consistency of laser incident angles on two sides is ensured.

Preferably, clamping device includes fixing base and slider, the slider slides and sets up on the fixing base, all be equipped with V type groove on slider and the fixing base, V type groove opening sets up relatively, be equipped with spacing boss on the fixing base, reflection unit fixes between fixing base and slider, threaded connection has clamping screw on the fixing base, clamping screw one end and slider laminating.

Fixing base and slider press from both sides tight fixed electric power fitting from both sides, and wherein the laminating of V type groove and electric power fitting's cylinder section side realizes electric power fitting in the ascending location of X direction and Y direction, and spacing boss is used for hanging electric power fitting, and the boss shape hangs hole shape adaptation with electric power fitting, has realized electric power fitting in the ascending location of Z direction, has improved electric power fitting's fixed quality. The fixed screw is rotated to adjust the displacement of the sliding block and adjust the space between the V-shaped grooves on the two sides.

Preferably, the reflecting mirror is a plane mirror or a concave mirror.

And selecting the angle of incidence required by the shape of the strengthening area of the electric power fitting.

A laser strengthening method for electric power fittings comprises the following steps:

s1, fixing an electric power fitting on a clamping device, and aligning laser emitted by a laser strengthening head to a strengthening area;

s2, adjusting the position of a reflecting surface of the reflecting device to ensure that the laser can cover a reinforced area which cannot be directly irradiated after being reflected;

and S3, performing laser strengthening on the electric power fitting set in the step S3 through a laser strengthening head.

The laser strengthening head is aimed at the region to be strengthened of the electric power fitting, the position angle of the reflecting surface of the reflecting device is adjusted before laser irradiation, the fact that the front side of the electric power fitting, which is aimed at the laser strengthening head, is directly irradiated is guaranteed, the part, which cannot be directly irradiated, of the back side can be irradiated through the reflecting device at the same time, omnidirectional irradiation is achieved at one time, efficiency is high, the part, which exceeds the strengthening region, of a laser spot can be reflected to the strengthening region through the reflecting device, and the laser utilization rate is high.

Preferably, when the reflecting device comprises plane mirrors with two symmetrical surfaces, the included angle between the two plane mirrors is 60-120 degrees.

The angle can be adjusted to ensure that the strengthening areas with different shapes can be fully and uniformly irradiated by laser.

Preferably, the laser irradiation time is 3-5 s, and the laser power density is 5-10W/mm²。

Preferably, step S3 further includes: the reflecting surface is rotated in the laser strengthening process, so that the strengthened area is ensured to be irradiated by uniform laser.

The laser incident angles of the strengthening areas at different angles are adjusted by rotating the reflecting surface, so that uniform and sufficient laser irradiation at all angles is ensured.

Therefore, the invention has the following beneficial effects: (1) the reflecting device is arranged to realize omnidirectional irradiation once, so that the efficiency is high; (2) the part of the laser spot exceeding the strengthening area can be reflected to the strengthening area by the reflecting device, so that the laser utilization rate is high; (3) the angle of the reflecting device is adjustable, the laser irradiation is sufficient and uniform, and the surface quality of the product is high; (4) the electric power fitting is quickly and stably fixed by arranging the clamping device; (5) simple structure, easy and convenient use and operation.

Drawings

Fig. 1 is a schematic structural diagram of the electric power fitting of the present invention.

Fig. 2 is a schematic structural diagram of the powerless fitting of the present invention.

Fig. 3 is a schematic view of a structure of the reflecting device of the present invention.

Fig. 4 is a schematic diagram of a laser beam path of the present invention.

FIG. 5 is a schematic view of the laser beam path at another angle in accordance with the present invention.

Fig. 6 is a schematic view of the path of a laser beam under a concave mirror according to the present invention.

In the figure: 1. laser strengthening head, 2, clamping device, 21, fixing base, 211, spacing boss, 22, slider, 23, V type groove, 24, clamping screw, 3, reflect meter, 31, speculum, 32, supporting seat, 33, connecting rod, 34, rotation seat, 35, ball slider, 36, ball, 37, guide rail, 38, base, 381, arc lug, 4, U type ring, 41, circular arc section, 42, vertical section, 43, hang the hole.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

Example 1

As shown in fig. 1, an electric power fitting laser strengthening device for carry out laser strengthening to U type ring 4, U type ring 4 is symmetrical structure, and the circular arc section 41 including the bottom, circular arc section 41 both ends all upwards extend and form vertical section 42, and the cross section of circular arc section 41 and vertical section 42 is circular, and vertical section 42 top upwards forms the ear, is equipped with circular suspension hole 43 in the ear, and circular arc section 41 circumference between the vertical section 42 is all treats the intensive region. The reinforcing device comprises:

the laser strengthening head 1 is vertically arranged downwards and used for emitting laser to a strengthening area of the electric power fitting;

the clamping device 2 is used for fixing and clamping the electric power fitting so that laser can shoot to a strengthening area;

and the reflecting device 3 is used for reflecting the laser to a strengthening area which cannot be directly irradiated by the laser, and the strengthening area is arranged between the reflecting surface of the reflecting device 3 and the laser strengthening head 1.

As shown in fig. 2, clamping device 2 includes fixing base 21 and slider 22, and fixing base 21 is the U-shaped structure, and slider 22 horizontal slip sets up in fixing base 21 one side, and fixing base 21 is equipped with vertical extension's V type groove 23 on keeping away from the vertical board of slider 22 one side, and V type groove 23 opening is towards slider 22, and this V type groove 23 top is equipped with the spacing boss 211 of inward circular, also is equipped with V type groove 23 on slider 22, and two V type grooves 23 are parallel and the opening sets up relatively. One side of the fixed seat 21 close to the sliding block 22 is connected with a fixed screw 24 in a threaded manner, and one end of the fixed screw 24 is attached to the sliding block 22. The bottom of the sliding block and the fixed seat can be guaranteed to move along a straight line by arranging the sliding groove. The V-shaped groove 23 can extend towards the bottom and fit with the arc-shaped protrusion 381 at the side of the reflection device 3, so as to ensure that the reflection device 3 is symmetrically arranged at two sides of the U-shaped ring 4.

The reflection device 3 is fixed in the U-shaped structure of the fixing base, as shown in fig. 3, the reflection device 3 is a symmetrical structure, and the symmetry axis is parallel to the horizontal axis of the arc section 41. The reflecting device 3 comprises a base 38, two supporting plates 32, a screw transmission mechanism and a connecting rod 33, wherein the two supporting plates 32 are rotatably connected with the base 38, the reflecting mirror 31 is a plane mirror and is fixed on the top surface of the supporting plates 32, the bottoms of the two supporting plates 32 are rotatably connected with the top end of the connecting rod 33, the bottom end of the connecting rod 33 is provided with the screw transmission mechanism, the screw transmission mechanism comprises a ball screw 36, a sliding rail 37 and two ball sliders 35, the sliding rail 37 extends along the horizontal direction perpendicular to the horizontal axis of the cylindrical section 41 and is fixed on the base 38, the two ball sliders 35 are slidably arranged on the sliding rail 37, the ball screw 36 is provided with two sections of threads with opposite rotation directions and is respectively and movably connected with the two ball sliders 35, the top parts of the ball sliders 35 are fixedly provided with a rotating seat 34, the bottom parts of the connecting rod 33 are rotatably connected on the rotating seat 34, and the ball sliders 35 approach or separate simultaneously along with the rotation of the ball screws 36, the two support plates 32 are driven by the connecting rod 33 to synchronously rotate towards or away from each other.

As shown in fig. 4, when the included angle of the two-sided reflecting mirror 31 is adjusted to 90 °, the upper half-circumference surface of the arc section 41 is directly irradiated by the laser beam, the laser beams on both sides of the arc section 41 are reflected by the two-sided reflecting mirror 31 and irradiated on the lower half-circumference surface, and the reinforced area is irradiated by the laser beam at one time, so that the efficiency and the utilization rate are high.

Ball 36 one end accessible motor drives and carries out the regulation of speculum contained angle in the irradiation, as shown in fig. 5, when the speculum contained angle was adjusted to about 120, 41 bottoms of circular arc section can obtain both sides laser irradiation, and more irradiations promote the irradiation effect, remedy under the less condition of contained angle, 41 bottoms of circular arc section laser incident angle undersize lead to the problem that the irradiation strength is not enough.

The reflecting mirror 31 may be a concave mirror as shown in fig. 6.

Example 2

A laser strengthening method for electric power fittings comprises the following steps:

s1, fixing a U-shaped ring on a clamping device 2, hanging a hanging hole 43 on one side on a limiting boss 211 for Z-direction positioning, rotating a fixing screw 24 to move a sliding block 22, clamping the U-shaped ring from two sides, attaching the circumferential surface of the vertical section of the U-shaped ring to V-shaped grooves on two sides, aligning laser emitted by a laser strengthening head 1 to a strengthening area in the middle of an arc section, and setting the size of a laser spot, wherein the length of a long axis (perpendicular to the horizontal axis of the arc section) is twice the diameter of the arc section, and the length of a short axis (parallel to the horizontal axis of the arc section) is the distance of a vertical section 42;

s2, rotating the ball screw 36, adjusting the position of a reflecting surface of the reflecting device 3, and ensuring that laser can cover a reinforced area which cannot be directly irradiated after being reflected, wherein the included angle between the two reflecting mirrors 31 is 60-120 degrees;

s3, performing laser strengthening on the electric power fitting set in the step S2 through a laser strengthening head 1, wherein the laser irradiation time is 3-5S, the laser power density is 5-10W/mm 2, and the included angle of a reflector is adjusted by rotating a ball screw (which can be driven by a motor to rotate forward and backward) in the laser strengthening process, so that the strengthened area is ensured to be uniformly and fully irradiated by laser.