Point sensor for laser head to cut special parts

Abstract

The utility model provides a tip sensor for cutting special parts by a laser head, which comprises a sensor main body, a cooling water outlet and a cooling water inlet are arranged on the sensor main body, a laser channel, a cooling flow channel and a flow channel plug are arranged in the sensor main body, and the laser channel penetrates through the upper surface and the lower surface of the sensor main body. The cooling flow channel is arranged on the periphery of the laser channel, and the cold cutting flow channel can dissipate heat of the sensor body. The beneficial effects are that the problems that a pointed-end sensor in the prior art is easy to be hot, the capacitance of the sensor is unstable, and the cutting stability is influenced in the using process can be solved, and the product structure, the cooling flow channel, the cooling water outlet and the cooling water inlet are matched to realize the circulation of cooling water, so that the cutting efficiency is improved. According to the heat dissipation device for the sensor, the sensor body can be efficiently subjected to circulating heat dissipation, heat of the sensor body is rapidly conducted out, the situation that normal use of the sensor is affected, and consequently the cutting stability is poor is avoided, and improvement of the competitiveness of enterprises is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting devices, in particular to a pointed sensor used for laser heads to cut special parts. Background Art

[0002] With the development of social science and technology, my country's manufacturing industry is facing a transformation towards high-end and intelligentization. As a basic processing, the penetration rate of laser technology in various links of industrial production is also rising. Laser cutting is a technology that uses a high-power density fiber laser beam to irradiate the material to be cut, so that the irradiated part of the material vaporizes to form tiny holes, and as the fiber laser beam moves, the holes are continuously formed to complete the cutting of the material.

[0003] In the laser cutting head, in order to ensure high-quality cutting, the laser cutting head uses a capacitive distance sensor. The sensor automatically detects changes and automatically adjusts the height according to the changes, so that it always keeps a consistent distance from the workpiece surface, so that the material can be processed faster. The laser cutting head often needs to cut special parts, such as I-beams and special-shaped pipes. Due to the irregular shape of the processed parts, if a standard flat-headed sensor is used, there is a large volume defect, which is easy to cause interference and affect the processing. Therefore, a pointed sensor is needed. However, traditional pointed sensors are prone to heating during use, resulting in unstable sensor capacitance, which affects the cutting stability and is not conducive to improving the competitiveness of the enterprise. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a pointed sensor for laser head cutting special parts, which solves the problems in the prior art that the pointed sensor is prone to heating during use, the sensor capacitance is unstable, and the cutting stability is affected.

[0005] The utility model discloses a pointed sensor for laser head cutting special parts, comprising a sensor body, a cooling water outlet and a cooling water inlet being arranged on the sensor body, a laser channel, a cooling flow channel and a flow channel plug being arranged in the sensor body, the laser channel being arranged through the upper and lower surfaces of the sensor body, the cooling flow channel being arranged at the periphery of the laser channel, the flow channel plug being able to prevent leakage of the cooling flow channel, one end of the cooling flow channel being connected with the cooling water outlet, the other end of the cooling flow channel being connected with the cooling water inlet, and the cooling flow channel being able to dissipate heat for the sensor body.

[0006] The utility model is further improved in that a cooling air inlet is further provided on the sensor body, a cooling air duct is provided in the sensor body, one end of the cooling air duct is connected to the cooling air inlet, and the cooling air duct can further dissipate heat for the sensor body.

[0007] The utility model is further improved. The sensor body includes a sensor upper body, a sensor main body and a sensor lower body which are arranged in sequence from top to bottom. The sensor upper body, the sensor main body and the sensor lower body are detachably connected. The upper end surface of the sensor upper body is provided with an installation groove which cooperates with the laser head.

[0008] The utility model is further improved in that a laser installation sealing rubber ring is arranged on the installation groove, and the laser installation sealing rubber ring can ensure the sealing of the connection between the sensor upper body and the laser head.

[0009] The utility model is further improved in that the upper end surfaces of the sensor main body and the sensor lower body are both provided with body sealing rubber rings, which can ensure the sealing of the connection between the sensor upper body, the sensor main body and the sensor lower body.

[0010] The utility model is further improved in that the cooling flow channel is arranged in the main body of the sensor, and two groups of cooling auxiliary flow channels matching with the two ends of the cooling flow channel are arranged on the upper body of the sensor. The two groups of cooling auxiliary flow channels are matched with the cooling water outlet and the cooling water inlet respectively, and a flow channel sealing rubber ring is arranged on the upper end surface of the main body of the sensor. The flow channel sealing rubber ring can ensure the sealing of the connection between the cooling auxiliary flow channel and the cooling flow channel.

[0011] The utility model is further improved, that is, an insulating connector is connected to the lower end of the sensor body, the insulating connector can ensure the insulation of the sensor body, a nozzle is connected to the lower end of the insulating connector, the nozzle is communicated with the laser channel, an electrical connector is arranged on the insulating connector, the sensor body is provided with a signal interface and a signal line, a cable channel is arranged inside the sensor body, the signal line is arranged in the cable channel, one end of the signal line is connected to the signal interface, and the other end of the signal line is connected to the electrical connector.

[0012] The utility model is further improved, the insulating connector includes a ceramic pressure ring and a ceramic ring, the sensor lower body can be fixedly connected with the ceramic ring through the ceramic pressure ring, and the ceramic ring is provided with a laser hole matching the laser channel.

[0013] The utility model is further improved, the cooling air duct is arranged on the sensor main body, the cooling air inlet is arranged on the sensor upper body, and a first cooling auxiliary air duct is arranged on the sensor upper body, the cooling auxiliary air duct is connected with the cooling air duct, a first air duct sealing rubber ring is arranged on the upper end face of the sensor main body, the first air duct sealing rubber ring can ensure the sealing of the connection between the cooling auxiliary air duct and the cooling air duct, a cooling air through hole is arranged on the ceramic ring, the cooling air through hole is connected with the cooling air duct, the cooling air through hole is connected with the nozzle, a second air duct sealing rubber ring is arranged on the upper end face of the ceramic ring, the second air duct sealing rubber ring can ensure the sealing of the connection between the cooling air through hole and the cooling air duct.

[0014] The utility model is further improved and also includes a locating pin. The upper end surface of the ceramic ring is provided with a lower pin hole that matches with the lower end of the locating pin. The lower body of the sensor is provided with an upper pin hole that matches with the upper end of the locating pin. The locating pin can ensure the relative fixation of the position between the ceramic ring and the main body of the sensor.

[0015] Compared with the prior art, the beneficial effect of the utility model is as follows: the utility model provides a pointed sensor for laser head cutting special parts. Its structure can effectively solve the problem in the prior art that the pointed sensor is prone to heating during use, the sensor capacitance is unstable, and the cutting stability is affected. By using this product structure, the cooling flow channel, the cooling water outlet and the cooling water inlet cooperate to realize the circulation of cooling water, which can efficiently circulate and dissipate heat for the sensor body, quickly export the heat of the sensor body, avoid affecting the normal use of the sensor, and avoid causing poor cutting stability, which is beneficial to improving the competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the tip sensor used for laser head cutting special parts;

[0018] Figure 2 This is a schematic diagram of the exploded structure of the tip sensor used for laser head cutting special parts;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] like Figure 1-3 As shown, the utility model is a pointed sensor for laser head cutting special parts, comprising a sensor body 1, in which a laser channel 11 is arranged, and the laser channel 11 is used for passing the laser emitted by the laser head.

[0024] The sensor body 1 includes a sensor upper body 12 , a sensor main body 13 and a sensor lower body 14 which are sequentially arranged from top to bottom. The sensor upper body 12 , the sensor main body 13 and the sensor lower body 14 are fixedly connected by screws.

[0025] The upper end surfaces of the sensor main body 13 and the sensor lower body 14 are both provided with body sealing rubber rings 15 , which can ensure the sealing of the connection between the sensor upper body 12 , the sensor main body 13 and the sensor lower body 14 .

[0026] A cooling channel 131 is provided in the sensor main body 13, and two groups of cooling auxiliary channels cooperating with both ends of the cooling channel 131 are provided on the sensor upper body 12. The two groups of cooling auxiliary channels are respectively connected to the cooling water inlet 16 and the cooling water outlet 17.

[0027] The provision of the cooling channel 131 can effectively dissipate heat from the sensor main body 13 , thereby preventing the stray light emitted by the laser head from causing the sensor main body 13 to heat up and affect the use of the sensor, thereby improving the user experience.

[0028] A flow channel plug 18 is also provided in the sensor body 1 , and the flow channel plug 18 can prevent leakage of the cooling flow channel 131 .

[0029] A flow channel sealing rubber ring 132 is provided on the upper end surface of the sensor main body 13 , and the flow channel sealing rubber ring 132 can ensure the sealing of the connection between the cooling auxiliary flow channel and the cooling flow channel 131 .

[0030] The upper end surface of the sensor upper body 12 is provided with a mounting groove for matching with the laser head, and the laser head is installed in the mounting groove.

[0031] A laser installation sealing rubber ring 121 is arranged on the installation groove, and the laser installation sealing rubber ring 121 can ensure the sealing of the connection between the sensor upper body 12 and the laser head.

[0032] An insulating connector 19 is connected to the lower end of the sensor lower body 14, which can ensure the insulation of the sensor body 1. A nozzle 20 is connected to the lower end of the insulating connector 19, and an electrical connector 193 is provided on the insulating connector 19. A signal interface 22 and a signal line are provided on the sensor upper body 12. A cable channel is provided inside the sensor main body 13. The signal line is provided in the cable channel. One end of the signal line is connected to the signal interface 22, and the other end of the signal line is connected to the electrical connector 193 to transmit the capacitive signal.

[0033] The laser channel 11 is provided through the upper and lower surfaces of the sensor body 1 , and the laser channel 11 is communicated with the nozzle 20 .

[0034] The insulating connector 19 includes a ceramic pressure ring 191 and a ceramic ring 192 . The sensor lower body 14 can be fixedly connected to the ceramic ring 192 via the ceramic pressure ring 191 .

[0035] The ceramic ring 192 is provided with a laser hole that matches the laser channel 11 .

[0036] The upper body 12 of the sensor is provided with a cooling air inlet 21, and the lower body 14 of the sensor and the main body 13 of the sensor are provided with a cooling air duct 141. The upper body 12 of the sensor is provided with a first cooling auxiliary air duct, which is connected to the cooling air duct 141. The upper end surface of the sensor main body 13 is provided with a first air duct sealing rubber ring 133, which can ensure the sealing of the connection between the cooling auxiliary air duct and the cooling air duct 141. The ceramic ring 192 is provided with a cooling air hole 1920, which is connected to the cooling air duct 141, and the cooling air hole 1920 is connected to the nozzle 20. The upper end surface of the ceramic ring 192 is provided with a second air duct sealing rubber ring 1921, which can ensure the sealing of the connection between the cooling air hole 1920 and the cooling air duct 141.

[0037] The cooling air from the cooler air inlet enters the sensor body 1, flows through the laser channels 11 of the sensor upper body 12, the sensor main body 13 and the sensor lower body 14 in sequence, then passes through the laser hole of the ceramic ring 192, and finally is ejected from the nozzle 20, which can further dissipate the heat of the sensor body 1 while also dissipating the heat of the nozzle 20.

[0038] The pointed sensor used for laser head cutting special parts also includes a positioning pin. The upper end surface of the ceramic ring 192 is provided with a lower pin hole 1922 that cooperates with the lower end of the positioning pin. The sensor lower body 14 is provided with an upper pin hole that cooperates with the upper end of the positioning pin. The positioning pin can ensure the relative fixation of the position between the ceramic ring 192 and the sensor main body 13.

[0039] From the above, it can be seen that the beneficial effect of the utility model is: the use of its mechanism can effectively solve the problem in the prior art that the pointed sensor is prone to heating during use, the sensor capacitance is unstable, and the cutting stability is affected. By using this product structure, the cooling channel 131, the cooling water outlet 17 and the cooling water inlet 16 cooperate to realize the circulation of cooling water, which can efficiently circulate and dissipate heat for the sensor body 1, and quickly export the heat of the sensor body 1, thereby avoiding affecting the normal use of the sensor and causing poor cutting stability, which is beneficial to improving the competitiveness of the enterprise.

[0040] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A tip sensor for laser head cutting special parts, characterized by: It includes a sensor body, which is provided with a cooling water outlet and a cooling water inlet. A laser channel, a cooling flow channel and a flow channel plug are provided in the sensor body. The laser channel runs through the upper and lower surfaces of the sensor body, the cooling flow channel is arranged on the periphery of the laser channel, the flow channel plug can prevent leakage of the cooling flow channel, one end of the cooling flow channel is connected to the cooling water outlet, and the other end of the cooling flow channel is connected to the cooling water inlet, and the cooling flow channel can dissipate heat for the sensor body.

2. The tip sensor for laser head cutting special parts according to claim 1, characterized in that: The sensor body is also provided with a cooling air inlet, and a cooling air duct is provided in the sensor body. One end of the cooling air duct is connected to the cooling air inlet, and the cooling air duct can further dissipate heat for the sensor body.

3. The tip sensor for laser head cutting special parts according to claim 2, characterized in that: The sensor body includes a sensor upper body, a sensor main body and a sensor lower body which are arranged in sequence from top to bottom. The sensor upper body, the sensor main body and the sensor lower body are detachably connected. The upper end surface of the sensor upper body is provided with an installation groove for cooperating with the laser head.

4. The tip sensor for laser head cutting special parts according to claim 3, characterized in that: A laser installation sealing rubber ring is arranged on the installation groove, and the laser installation sealing rubber ring can ensure the sealing performance of the connection between the upper body of the sensor and the laser head.

5. The tip sensor for laser head cutting special parts according to claim 3, characterized in that: The upper end surfaces of the sensor main body and the sensor lower body are both provided with body sealing rubber rings, and the body sealing rubber rings can ensure the sealing of the connection between the sensor upper body, the sensor main body and the sensor lower body.

6. The tip sensor for laser head cutting special parts according to claim 3, characterized in that: The cooling channel is arranged in the main body of the sensor, and two groups of cooling auxiliary channels matching with the two ends of the cooling channel are arranged on the upper body of the sensor. The two groups of cooling auxiliary channels are matched with the cooling water outlet and the cooling water inlet respectively. A channel sealing rubber ring is arranged on the upper end surface of the main body of the sensor, and the channel sealing rubber ring can ensure the sealing of the connection between the cooling auxiliary channel and the cooling channel.

7. The tip sensor for laser head cutting special parts according to any one of claims 3 to 6, characterized in that: An insulating connector is connected to the lower end of the sensor body, and the insulating connector can ensure the insulation of the sensor body. A nozzle is connected to the lower end of the insulating connector, and the nozzle is communicated with the laser channel. An electrical connector is arranged on the insulating connector. The sensor body is provided with a signal interface and a signal line. A cable channel is arranged inside the sensor body, and the signal line is arranged in the cable channel. One end of the signal line is connected to the signal interface, and the other end of the signal line is connected to the electrical connector.

8. The tip sensor for laser head cutting special parts according to claim 7, characterized in that: The insulating connector includes a ceramic pressure ring and a ceramic ring. The sensor lower body can realize fixed connection between the sensor lower body and the ceramic ring through the ceramic pressure ring. The ceramic ring is provided with a laser hole that matches the laser channel.

9. The tip sensor for laser head cutting special parts according to claim 8, characterized in that: The cooling air duct is arranged on the sensor main body, the cooling air inlet is arranged on the sensor upper body, and a first cooling auxiliary air duct is arranged on the sensor upper body, the cooling auxiliary air duct is connected with the cooling air duct, a first air duct sealing rubber ring is arranged on the upper end face of the sensor main body, the first air duct sealing rubber ring can ensure the sealing of the connection between the cooling auxiliary air duct and the cooling air duct, a cooling air through hole is arranged on the ceramic ring, the cooling air through hole is connected with the cooling air duct, the cooling air through hole is connected with the nozzle, a second air duct sealing rubber ring is arranged on the upper end face of the ceramic ring, the second air duct sealing rubber ring can ensure the sealing of the connection between the cooling air through hole and the cooling air duct.

10. The tip sensor for laser head cutting special parts according to claim 8, characterized in that: It also includes a positioning pin, the upper end surface of the ceramic ring is provided with a lower pin hole that cooperates with the lower end of the positioning pin, and the lower body of the sensor is provided with an upper pin hole that cooperates with the upper end of the positioning pin. The positioning pin can ensure the relative fixation of the position between the ceramic ring and the main body of the sensor.

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