Protective assembly, laser head and laser processing equipment

Abstract

The utility model is applicable to the technical field of laser equipment, and provides a protection assembly, a laser head and laser processing equipment, the protection assembly comprises a mounting seat, a conductive needle, an insulating layer, a conductive layer, a signal unit and an elastic piece; a light through hole, a conducting hole and a mounting groove are formed in the mounting seat, the mounting groove is communicated with the light through hole, the conducting hole is communicated with the mounting groove, and the conducting hole and the mounting groove are formed in the same straight line in the radial direction of the light through hole; the conductive needle extends out of the through hole from the mounting groove; the insulating layer is sleeved on the conductive needle, and the conductive needle can slide relative to the insulating layer; the conductive layer sleeves the insulating layer and is connected with the mounting seat; the conductive needle and the conductive layer are electrically connected with the signal unit; the two ends of the elastic piece are arranged on the insulating layer and the conductive needle respectively. The elastic piece is used for driving the conductive needle and the conductive layer to move from a separated state to a contact state in the length direction of the conductive needle. According to the embodiment of the invention, a user can be reminded to install the protection sheet through the prompt signal sent by the signal unit.

Description

Technical Field

[0001] The present application relates to the technical field of laser equipment, and in particular to a protective component, a laser head and laser processing equipment. Background Art

[0002] The laser cutting head is used to focus the laser beam and then shoot it toward the workpiece, so as to use the laser beam to heat the material on the surface of the workpiece to the vaporization temperature, thereby evaporating and forming holes. As the laser beam moves relative to the workpiece, a very narrow slit is continuously formed to achieve cutting of the workpiece.

[0003] Since the laser cutting head has a focusing lens, if there is dust in the focusing light path, it will not only affect the quality of the focused laser beam, but the dust may also absorb heat and ablate the focusing lens, thus affecting the service life of the laser cutting head. Therefore, a protective sheet is generally set at the light outlet of the laser cutting head to keep the laser cutting head closed, thereby preventing dust from entering the laser cutting head and avoiding contamination of the laser cutting head.

[0004] At present, when using the laser cutting head, users are required to replace the protective sheet to avoid excessive dust adhering to the protective sheet and affecting the quality of the laser beam. However, after removing the original protective sheet, users may forget to install a new protective sheet, resulting in the laser cutting head's light outlet not being protected by the protective sheet, causing dust to enter the laser cutting head and cause pollution. Utility Model Content

[0005] The embodiments of the present application provide a protective component, a laser head, and laser processing equipment, which can remind the user to install a new protective sheet.

[0006] In a first aspect, an embodiment of the present application provides a protection component, the protection component comprising:

[0007] A mounting seat, wherein the mounting seat is provided with a light-through hole, a conductive hole and a mounting groove, the mounting groove is connected with the light-through hole, the conductive hole is connected with the mounting groove, and the conductive hole and the mounting groove are arranged on the same straight line in the radial direction of the light-through hole;

[0008] A conductive needle extending from the mounting slot to the conducting hole;

[0009] an insulating layer, wherein the insulating layer is sleeved on the conductive pin, and the conductive pin is slidable relative to the insulating layer;

[0010] A conductive layer, wherein the conductive layer is sleeved on the insulating layer and connected to the mounting seat;

[0011] A signal unit, the conductive needle and the conductive layer are both electrically connected to the signal unit;

[0012] An elastic member, two ends of which are respectively arranged on the insulating layer and the conductive needle, and the elastic member is used to drive the conductive needle and the conductive layer to move from a separated state to a contact state along the length direction of the conductive needle.

[0013] In some possible implementations of the first aspect, the conductive needle includes:

[0014] A sliding section, wherein the insulating layer is sleeved on the sliding section;

[0015] A first resisting section, wherein the first resisting section is arranged on the sliding section and is located outside the mounting seat;

[0016] a second resisting section, the second resisting section being arranged on the sliding section, the second resisting section being located in the mounting seat; the insulating layer being located between the first resisting section and the second resisting section, the elastic member being arranged between the insulating layer and the second resisting section;

[0017] Wherein, the cross-sectional dimensions of the first resisting section and the second resisting section are both larger than the cross-sectional dimension of the sliding section.

[0018] In some possible implementations of the first aspect, the distance between the end surface of the conductive layer close to the first blocking segment and the first blocking segment is less than or equal to the distance between the end surface of the insulating layer close to the first blocking segment and the first blocking segment.

[0019] In some possible implementations of the first aspect, the insulating layer includes:

[0020] A connecting section, wherein the conductive layer is sleeved on the connecting section;

[0021] a third resisting section, the third resisting section being arranged at one end of the connecting section close to the second resisting section, and an end surface of the conductive layer being in contact with the third resisting section;

[0022] Wherein, the cross-sectional dimension of the connecting section is smaller than the cross-sectional dimension of the third resisting section.

[0023] In some possible implementations of the first aspect, the signal unit includes:

[0024] A control circuit board, the control circuit board is arranged on the mounting seat, a first avoidance hole is arranged on the control circuit board, the conductive layer is passed through the first avoidance hole, and the conductive layer is fixed to and electrically connected with the control circuit board;

[0025] A lead wire, two ends of which are electrically connected to the conductive needle and the control circuit board respectively.

[0026] In some possible implementations of the first aspect, the protection component further includes:

[0027] A protective lens seat is provided with a placement groove, and the protective lens seat can be inserted into the installation groove.

[0028] In some possible implementations of the first aspect, a second avoidance hole is provided on the protective lens seat, the second avoidance hole is communicated with the placement groove, and the conductive needle can extend into the placement groove from the second avoidance hole.

[0029] In some possible implementations of the first aspect, the protection component further includes:

[0030] A clamping unit, a clamping groove connected to the placement groove is also provided on the protective mirror seat, the clamping groove coincides with the center line of the placement groove, and the diameter of the clamping groove is larger than the diameter of the placement groove; the clamping unit is arranged in the clamping groove, and the groove depth of the clamping groove is smaller than the thickness of the clamping unit.

[0031] In some possible implementations of the first aspect, the pressing unit includes:

[0032] a first elastic ring, wherein a groove is provided on the first elastic ring, and the first elastic ring is arranged in the pressing groove;

[0033] A second elastic ring is disposed in the groove, and a total thickness of the first elastic ring and the second elastic ring is greater than a groove depth of the pressing groove.

[0034] In a second aspect, an embodiment of the present application provides a laser head, which includes a protective component as described in any one of the above technical solutions.

[0035] In a third aspect, an embodiment of the present application provides a laser processing device, which includes the laser head as described above.

[0036] The protective assembly, laser head and laser processing equipment provided by the embodiments of the present application are provided with a light-through hole, a conductive hole and a mounting groove in the mounting seat, the light-through hole is used for allowing the laser beam to pass through, the mounting groove is used to accommodate a protective mirror seat with a protective sheet installed, and the conductive hole is used for allowing the conductive needle to pass through; the insulating layer is sleeved on the conductive needle, and the conductive needle can slide relative to the insulating layer; the conductive layer is sleeved on the insulating layer, and the conductive layer is arranged on the mounting seat so that the conductive layer is fixed relative to the mounting seat; the signal unit is used to electrically connect the conductive needle and the conductive layer so that the conductive needle, the signal unit and the conductive layer form a conductive loop and can send out a prompt signal; when the protective mirror seat is inserted into the mounting groove, the protective mirror seat will push the conductive needle so that the conductive needle, the signal unit and the conductive layer The conductive circuit formed by the conductive layer is broken to generate a signal that the protective sheet has been installed through the signal unit. During this process, the elastic part will be compressed by the conductive needle; when the protective lens holder is not inserted into the installation groove, the elastic part is not subjected to external force, so the elastic part will tend to drive the conductive needle to reset; if the elastic part is not compressed, the conductive circuit formed by the conductive needle, the signal unit and the conductive layer is always in a closed state; if the elastic part is compressed, the elastic part will drive the conductive needle and the conductive layer to move from a separated state to a contact state, so that the conductive circuit formed by the conductive needle, the signal unit and the conductive layer is in a closed state, thereby generating a signal that the protective sheet is not installed through the signal unit; the prompt signal sent by the signal unit can remind the user to install the protective sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0038] Figure 1 This is a schematic diagram of the structure of an embodiment of a protection component of the present application;

[0039] Figure 2 This is a cross-sectional view of an embodiment of the protection component of the present application when the protection sheet is not installed;

[0040] Figure 3 This is a cross-sectional view of an embodiment of the protection component of the present application when the protection sheet is installed;

[0041] Figure 4 for Figure 2 A cross-sectional view of a portion of the structure.

[0042] Description of Figure Numbers:

[0043] 1. Mounting seat; 11. Light-through hole; 12. Conductive hole; 13. Mounting groove; 2. Conductive needle; 21. Sliding section; 22. First blocking section; 23. Second blocking section; 3. Insulating layer; 31. Connecting section; 32. Third blocking section; 4. Conductive layer; 5. Signal unit; 51. Control circuit board; 6. Elastic member; 7. Protective lens seat; 71. Placement groove; 72. Second avoidance hole; 73. Pressing groove; 8. Pressing unit; 81. First elastic ring; 82. Second elastic ring; 9. Protective sheet.

[0044] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] It should be understood that the term “and / or” used in the specification and appended claims of this application refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] The embodiments of the present application provide a protective component, a laser head and a laser processing device, which are used to solve the technical problem that users easily forget to install the protective sheet.

[0051] In the embodiments of the present application, Figures 1 to 3 As shown, the protective component includes a mounting seat 1, a conductive pin 2, an insulating layer 3, a conductive layer 4, a signal unit 5 and an elastic member 6. The mounting seat 1 is provided with a light-through hole 11, a conducting hole 12 and a mounting groove 13. The mounting groove 13 is connected to the light-through hole 11, and the conducting hole 12 is connected to the mounting groove 13. The conducting hole 12 and the mounting groove 13 are arranged on the same straight line in the radial direction of the light-through hole 11. The conductive pin 2 extends out of the conducting hole 12 from the mounting groove 13. The insulating layer 3 is sleeved on the conductive pin 2, and the conductive pin 2 is slidable relative to the insulating layer 3. The conductive layer 4 is sleeved on the insulating layer 3, and the conductive layer 4 is connected to the mounting seat 1. The conductive pin 2 and the conductive layer 4 are both electrically connected to the signal unit 5. The two ends of the elastic member 6 are respectively arranged on the insulating layer 3 and the conductive pin 2, and the elastic member 6 is used to drive the conductive pin 2 and the conductive layer 4 to move from a separated state to a contact state along the length direction of the conductive pin 2.

[0052] The light hole 11 is used for passing the laser beam, so that the laser beam passing through the light hole 11 can process the workpiece. The mounting groove 13 is used for inserting the protective lens holder 7, and the protective lens holder 7 is used to install the protective sheet 9, so that the protective sheet 9 is arranged in the light hole 11 through the protective lens holder 7, thereby preventing dust from entering the laser head through the protective sheet 9.

[0053] The mounting groove 13 is connected to the light-through hole 11, the conducting hole 12 is connected to the mounting groove 13, and the conducting hole 12 and the mounting groove 13 are arranged on the same straight line of the radial direction of the light-through hole 11. So that after the protective lens seat 7 is inserted into the mounting groove 13, the protective lens seat 7 can push the conductive needle 2.

[0054] The insulating layer 3 is sleeved on the conductive pin 2, and the conductive pin 2 can slide relative to the insulating layer 3; the conductive layer 4 is sleeved on the insulating layer 3, and the conductive layer 4 is connected to the mounting seat 1. Therefore, the conductive layer 4 is stationary relative to the mounting seat 1, and the insulating layer 3 can be stationary relative to the mounting seat 1 through the conductive layer 4. When the protective lens seat 7 is inserted into the mounting groove 13 and pushes the conductive pin 2, the conductive pin 2 can slide relative to the insulating layer 3 to separate the conductive layer 4 and the conductive pin 2.

[0055] The two ends of the elastic member 6 are respectively arranged on the insulating layer 3 and the conductive needle 2, so when the protective lens holder 7 is inserted into the mounting groove 13, the protective lens holder 7 will push the conductive needle 2, and the conductive needle 2 will push one end of the elastic member 6 to compress the elastic member 6. Since the conductive needle 2 is pushed, the conductive needle 2 and the conductive layer 4 will move from the contact state to the separation state, so that the conductive loop formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 changes from the closed state to the open circuit state. The elastic member 6 can be a spring.

[0056] When the protective lens holder 7 is pulled out, the elastic member 6 loses its external force restriction, so the elastic member 6 will drive the conductive needle 2 and the conductive layer 4 to move from a separated state to a contact state along the length direction of the conductive needle 2, so that the conductive circuit formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 changes from an open state to a closed state.

[0057] The signal unit 5 is used to electrically connect the conductive pin 2 and the conductive layer 4, and when the conductive loop formed by the conductive pin 2, the signal unit 5 and the conductive layer 4 is in an open circuit state, an alarm signal is issued to remind the user that the protective lens holder 7 is not installed in the installation slot 13. When the conductive loop formed by the conductive pin 2, the signal unit 5 and the conductive layer 4 is in a closed state, the signal unit 5 may not issue a reminder, or may issue a reminder message that the protective lens holder 7 is installed in the installation slot 13.

[0058] The mounting seat 1 of the embodiment of the present application is provided with a light through hole 11, a conductive hole 12 and a mounting groove 13. The light through hole 11 is used for passing the laser beam, the mounting groove 13 is used to accommodate the protective mirror seat 7 installed with the protective sheet 9, and the conductive hole 12 is used for passing the conductive needle 2; the insulating layer 3 is sleeved on the conductive needle 2, and the conductive needle 2 is slidable relative to the insulating layer 3; the conductive layer 4 is sleeved on the insulating layer 3, and the conductive layer 4 is arranged on the mounting seat 1 so that the conductive layer 4 is fixed relative to the mounting seat 1; the signal unit 5 is used to electrically connect the conductive needle 2 and the conductive layer 4 so that the conductive needle 2, the signal unit 5 and the conductive layer 4 form a conductive loop and can send out a prompt signal; when the protective mirror seat 7 is inserted into the mounting groove 13, the protective mirror seat 7 will push the conductive needle 2 so that the conductive needle 2, the signal unit 5 and the conductive layer 4 form a conductive loop The conductive circuit formed is broken to generate a signal that the protective sheet 9 has been installed through the signal unit 5. During this process, the elastic member 6 will be compressed by the conductive needle 2; when the protective lens holder 7 is not inserted into the installation groove 13, the elastic member 6 is not subjected to external force, so the elastic member 6 will have a tendency to drive the conductive needle 2 to reset; if the elastic member 6 is not compressed, the conductive circuit formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 is always in a closed state; if the elastic member 6 is compressed, the elastic member 6 will drive the conductive needle 2 and the conductive layer 4 to move from a separated state to a contact state, so that the conductive circuit formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 is in a closed state, thereby generating a signal that the protective sheet 9 is not installed through the signal unit 5; the prompt signal sent by the signal unit 5 can remind the user to install the protective sheet 9.

[0059] In one embodiment, if Figures 2 to 4As shown, the conductive needle 2 includes a sliding section 21, a first stop section 22 and a second stop section 23. The insulating layer 3 is sleeved on the sliding section 21, and the first stop section 22 and the second stop section 23 are both arranged on the sliding section 21. The first stop section 22 is located outside the mounting seat 1, and the second stop section 23 is located inside the mounting seat 1. The insulating layer 3 is located between the first stop section 22 and the second stop section 23, and the elastic member 6 is arranged between the insulating layer 3 and the second stop section 23. Among them, the cross-sectional dimensions of the first stop section 22 and the second stop section 23 are both larger than the cross-sectional dimensions of the sliding section 21.

[0060] The second stopper section 23 can be located in one of the conductive hole 12, the mounting groove 13 and the light-through hole 11, so that the second stopper section 23 is located in the mounting seat 1. The side surface of the first stopper section 22 can contact the end surface of the conductive layer 4, so that the conductive loop formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 is in a closed state. The second stopper section 23 is used to limit the elastic member 6, so that the two ends of the elastic member 6 can be located in the insulating layer 3 and the second stopper section 23 respectively, so that the second stopper section 23 can compress the elastic member 6, or the elastic member 6 drives the second stopper section 23 to reset.

[0061] When the protective lens holder 7 is inserted into the mounting groove 13, the protective lens holder 7 can push the second resisting section 23 or the sliding section 21, so that the second resisting section 23 pushes the elastic member 6 to contract. At the same time, the first resisting section 22 will be away from the end surface of the conductive layer 4, so that the first resisting section 22 is separated from the conductive layer 4, thereby making the conductive loop formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 in an open circuit state.

[0062] In another optional embodiment, the elastic member 6 may be disposed between the first blocking section 22 and the insulating layer 3 .

[0063] In one embodiment, the sliding section 21 , the first blocking section 22 and the second blocking section 23 are integrally provided.

[0064] In one embodiment, if Figure 4 As shown, the distance between the end surface of the conductive layer 4 close to the first abutting section 22 and the first abutting section 22 is less than or equal to the distance between the end surface of the insulating layer 3 close to the first abutting section 22 and the first abutting section 22. This allows the conductive layer 4 to contact the first abutting section 22, and avoids the insulating layer 3 interfering with the contact between the conductive layer 4 and the first abutting section 22.

[0065] In one embodiment, if Figure 4 As shown, the insulating layer 3 includes a connecting section 31 and a third stop section 32. The conductive layer 4 is sleeved on the connecting section 31, and the third stop section 32 is arranged at one end of the connecting section 31 close to the second stop section 23, and the end surface of the conductive layer 4 contacts the third stop section 32. The cross-sectional size of the connecting section 31 is smaller than the cross-sectional size of the third stop section 32.

[0066] The third stop section 32 is used to limit the conductive layer 4 to avoid the impact force generated during the contact between the first stop section 22 and the conductive layer 4, which causes the conductive layer 4 and the insulating layer 3 to be relatively displaced, thereby maintaining the contact between the first stop section 22 and the conductive layer 4.

[0067] In one embodiment, if Figure 2 and Figure 3 As shown, the signal unit 5 includes a control circuit board 51 and a lead. The control circuit board 51 is arranged on the mounting seat 1, and a first avoidance hole is arranged on the control circuit board 51. The conductive layer 4 is passed through the first avoidance hole, and the conductive layer 4 is fixed and electrically connected to the control circuit board 51. The two ends of the lead are electrically connected to the conductive needle 2 and the control circuit board 51 respectively.

[0068] The control circuit board 51 is used to generate a corresponding prompt signal according to the open circuit or closed state of the conductive circuit to prompt the user to install the protective sheet 9. The control circuit board 51 is also used to be electrically connected to the conductive layer 4. The lead wire is used to electrically connect the conductive needle 2 and the control circuit board 51.

[0069] In one embodiment, if Figures 1 to 3 As shown, the protection assembly also includes a protection mirror seat 7, and a placement groove 71 is provided on the protection mirror seat 7, and the protection mirror seat 7 can be inserted into the installation groove 13. The placement groove 71 is used to place the protection sheet 9. After the protection sheet 9 is placed in the placement groove 71, the protection mirror seat 7 can be inserted into the installation groove 13 to block dust through the protection sheet 9. Since the protection sheet 9 is set on the protection mirror seat 7, when the signal unit 5 generates a prompt signal that the protection mirror seat 7 is not installed in the installation groove 13, it means that the protection sheet 9 is not installed.

[0070] In one embodiment, if Figures 1 to 3 As shown, the protective lens seat 7 is provided with a second avoidance hole 72, and the second avoidance hole 72 is connected to the placement slot 71, and the conductive needle 2 can extend from the second avoidance hole 72 into the placement slot 71. In the process of inserting the protective lens seat 7 into the installation slot 13, the conductive needle 2 will extend from the second avoidance hole 72 into the placement slot 71. If a protective sheet 9 is provided in the placement slot 71, the protective sheet 9 will push the conductive needle 2. If the protective sheet 9 is not provided in the placement slot 71, the conductive needle 2 will not be pushed. Therefore, whether the protective sheet 9 is installed can be judged by whether the conductive needle 2 is pushed, so that the conductive circuit formed by the conductive needle 2, the signal unit 5 and the conductive layer 4 is in an open circuit state, thereby reminding the user to install the protective sheet 9.

[0071] In one embodiment, if Figures 1 to 3As shown, the protection assembly also includes a pressing unit 8, and the protection mirror seat 7 is also provided with a pressing groove 73 connected with the placement groove 71. The pressing groove 73 coincides with the center line of the placement groove 71, and the diameter of the pressing groove 73 is greater than the diameter of the placement groove 71. The pressing unit 8 is arranged in the pressing groove 73, and the groove depth of the pressing groove 73 is less than the thickness of the pressing unit 8.

[0072] After the protective sheet 9 is placed in the placement groove 71, the pressing unit 8 is placed in the pressing groove 73, and then the protective lens holder 7 is inserted into the installation groove 13. Since the depth of the pressing groove 73 is less than the thickness of the pressing unit 8, the upper wall of the installation groove 13 will squeeze the pressing unit 8, so that the protective sheet 9 is pressed into the placement groove 71 by the pressing unit 8, thereby fixing the protective sheet 9 and preventing the protective sheet 9 from moving in the placement groove 71.

[0073] In one embodiment, if Figure 2 and Figure 3 As shown, the pressing unit 8 includes a first elastic ring 81 and a second elastic ring 82. A groove is provided on the first elastic ring 81, and the first elastic ring 81 is arranged in the pressing groove 73. The second elastic ring 82 is arranged in the groove, and the total thickness of the first elastic ring 81 and the second elastic ring 82 is greater than the groove depth of the pressing groove 73.

[0074] By providing a groove on the first elastic ring 81 and then placing the second elastic ring 82 in the groove, the protection sheet 9 can be pressed into the placement groove 71 better.

[0075] In addition, an embodiment of the present application also provides a laser head, which includes a protective component. The specific structure of the protective component refers to the above embodiment. Since the laser head adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments.

[0076] In addition, an embodiment of the present application also provides a laser processing device, which includes a laser head. The specific structure of the laser head refers to the above embodiment. Since the laser processing equipment adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments.

[0077] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A protective component, characterized in that: The protection component comprises: A mounting seat, wherein the mounting seat is provided with a light-through hole, a conductive hole and a mounting groove, the mounting groove is connected with the light-through hole, the conductive hole is connected with the mounting groove, and the conductive hole and the mounting groove are arranged on the same straight line in the radial direction of the light-through hole; A conductive needle extending from the mounting slot to the conducting hole; an insulating layer, wherein the insulating layer is sleeved on the conductive pin, and the conductive pin is slidable relative to the insulating layer; A conductive layer, wherein the conductive layer is sleeved on the insulating layer and connected to the mounting seat; A signal unit, the conductive needle and the conductive layer are both electrically connected to the signal unit; An elastic member, two ends of which are respectively arranged on the insulating layer and the conductive needle, and the elastic member is used to drive the conductive needle and the conductive layer to move from a separated state to a contact state along the length direction of the conductive needle.

2. The protection assembly according to claim 1, characterized in that: The conductive needle comprises: A sliding section, wherein the insulating layer is sleeved on the sliding section; A first resisting section, wherein the first resisting section is arranged on the sliding section and is located outside the mounting seat; a second resisting section, the second resisting section being arranged on the sliding section, the second resisting section being located in the mounting seat; the insulating layer being located between the first resisting section and the second resisting section, the elastic member being arranged between the insulating layer and the second resisting section; Wherein, the cross-sectional dimensions of the first resisting section and the second resisting section are both larger than the cross-sectional dimension of the sliding section.

3. The protection assembly according to claim 2, characterized in that: The distance between the end surface of the conductive layer close to the first blocking segment and the first blocking segment is less than or equal to the distance between the end surface of the insulating layer close to the first blocking segment and the first blocking segment.

4. The protection assembly according to claim 3, characterized in that: The insulating layer comprises: A connecting section, wherein the conductive layer is sleeved on the connecting section; a third resisting section, the third resisting section being arranged at one end of the connecting section close to the second resisting section, and an end surface of the conductive layer being in contact with the third resisting section; Wherein, the cross-sectional dimension of the connecting section is smaller than the cross-sectional dimension of the third resisting section.

5. The protection assembly according to claim 1, characterized in that: The signal unit comprises: A control circuit board, the control circuit board is arranged on the mounting seat, a first avoidance hole is arranged on the control circuit board, the conductive layer is passed through the first avoidance hole, and the conductive layer is fixed to and electrically connected with the control circuit board; A lead wire, two ends of which are electrically connected to the conductive needle and the control circuit board respectively.

6. The protection assembly according to claim 1, characterized in that: The protection component also includes: A protective lens seat is provided with a placement groove, and the protective lens seat can be inserted into the installation groove.

7. The protection assembly according to claim 6, characterized in that: The protective mirror seat is provided with a second avoidance hole, the second avoidance hole is communicated with the placement groove, and the conductive needle can extend into the placement groove from the second avoidance hole.

8. The protection assembly according to claim 6, characterized in that: The protection component also includes: A clamping unit, a clamping groove connected to the placement groove is also provided on the protective mirror seat, the clamping groove coincides with the center line of the placement groove, and the diameter of the clamping groove is larger than the diameter of the placement groove; the clamping unit is arranged in the clamping groove, and the groove depth of the clamping groove is smaller than the thickness of the clamping unit.

9. The protection assembly according to claim 8, characterized in that: The pressing unit comprises: a first elastic ring, wherein a groove is provided on the first elastic ring, and the first elastic ring is arranged in the pressing groove; A second elastic ring is disposed in the groove, and a total thickness of the first elastic ring and the second elastic ring is greater than a groove depth of the pressing groove.

10. A laser head, characterized in that: The laser head comprises the protection assembly as described in any one of claims 1 to 9.

11. A laser processing device, characterized in that: The laser processing equipment comprises the laser head as claimed in claim 10.

Images