A collision prevention mechanism and a collision prevention oscillating welding laser head

Abstract

The present application relates to a kind of anti-collision mechanism and anti-collision swing welding laser head.The anti-collision mechanism described in the present application includes: annular conductive adhesive strip, zebra strip cooperation piece and signal trigger device;The annular conductive adhesive strip is provided with annular arrangement and interval arrangement insulating layer and conductive layer;The zebra strip cooperation piece is opposite the annular conductive adhesive strip and is arranged;When the anti-collision swing welding laser head works, the zebra strip cooperation piece top end and the annular conductive adhesive strip bottom end abut;The signal trigger device is electrically connected with the annular conductive adhesive strip and zebra strip cooperation piece respectively.The anti-collision mechanism and anti-collision swing welding laser head described in the present application have the advantages of being able to automatically detect collision and improve risk resistance.

Description

Technical Field

[0001] This invention relates to the field of high-precision welding, and in particular to an anti-collision mechanism and an anti-collision oscillating welding laser head. Background Technology

[0002] With the development of modern welding technology, higher requirements have been placed on automated welding technology and precision. During the welding process, the laser welding head may be bumped or knocked; existing automated welding equipment may cause the welding head to shift upon impact, and the continuous emission of light during this shift may burn out the laser head. Existing automated welding equipment cannot simultaneously meet the requirements of high precision and risk resistance in laser welding. Summary of the Invention

[0003] Based on this, the purpose of the present invention is to provide an anti-collision mechanism and an anti-collision swing welding laser head, which has the advantages of being able to automatically detect collisions and improve risk resistance.

[0004] An anti-collision mechanism includes: an annular conductive rubber strip, a zebra strip mating component, and a signal triggering device; the annular conductive rubber strip is provided with an insulating layer and a conductive layer arranged in a ring and spaced apart; the zebra strip mating component is positioned opposite the annular conductive rubber strip; when the anti-collision oscillating welding laser head is working, the top end of the zebra strip mating component and the bottom end of the annular conductive rubber strip abut against each other; the signal triggering device is electrically connected to both the annular conductive rubber strip and the zebra strip mating component.

[0005] The anti-collision mechanism described in this invention is used on a welding laser head, positioned between the welding head mechanism and the laser emitting mechanism of the welding laser head. It can detect collisions via an annular conductive strip and a zebra strip mating component. Because the annular conductive strip has an insulating layer and a conductive layer arranged in a ring and spaced apart, when the zebra strip mating component and the annular conductive strip abut, the conductive layer at the contact point is conductive. When the welding head mechanism collides during operation, the zebra strip mating component partially disengages from the annular conductive strip, and the conductive layer at the point of detachment breaks, causing the signal triggering device to issue a stop signal, preventing continuous light emission and burnout of the laser head. Furthermore, the position of the broken conductive layer on the annular conductive strip allows the determination of the direction of the collision, facilitating laser head retraction.

[0006] Furthermore, the signal triggering device is an intermediate relay, which has multiple contacts; each conductive layer on the annular conductive strip is connected to a contact of the signal triggering device in a one-to-one correspondence.

[0007] A collision-resistant oscillating welding laser head, characterized in that it comprises: a laser emitting mechanism having a laser emitting port at one end, and a welding head mechanism having a light inlet at one end, the laser emitting port facing the light inlet; an annular conductive strip surrounding the laser emitting port and disposed on the laser emitting mechanism at the laser emitting port; a zebra strip mating component facing the annular conductive strip and surrounding the light inlet and disposed on the welding head mechanism at the light inlet; and a signal triggering device connected to the laser emitting mechanism.

[0008] Furthermore, the anti-collision mechanism also includes a reset spring, which is fitted with the annular conductive rubber strip; when the anti-collision swing welding laser head is working normally, one end of the reset spring abuts against the laser emitting mechanism, and the other end abuts against the welding head mechanism.

[0009] Furthermore, it also includes a rotary reset device; the rotary reset device includes a floating disk and several reset mating parts; one end of the reset spring is connected to the welding head mechanism, and the other end is connected to the floating disk, the floating disk facing the laser emitting mechanism; the floating disk has a through hole in its center, and the floating disk is fitted with an annular conductive rubber strip, which can slide up and down between the laser emitting mechanism and the welding head mechanism; the floating disk has several reset slots on the side facing the laser emitting mechanism, and the reset mating parts are located below the laser emitting mechanism; when the anti-collision swing welding laser head is working, the reset spring pushes the floating disk to fit tightly against the lower part of the laser emitting mechanism, and the reset mating parts are respectively inserted into the corresponding reset slots.

[0010] Furthermore, the reset slots are arranged in a non-equidistant ring; the spacing between the reset mating parts corresponds one-to-one with the spacing of each reset slot.

[0011] Furthermore, the anti-collision mechanism also includes an alarm device, which is connected to the floating disk or reset mating component.

[0012] Furthermore, the welding head mechanism includes an endoscope tube, a zoom guide rail, a focusing lens, a protective lens, and a laser head nozzle; one side of the endoscope tube has a light inlet, and the other side is connected to the laser head nozzle; the zoom guide rail is located inside the endoscope tube, and the focusing lens is adjustablely located on the zoom guide rail; the protective lens is located inside the endoscope tube, between the focusing lens and the laser head nozzle.

[0013] Furthermore, it also includes a protective sleeve, which is connected to the welding head mechanism and the laser emitting mechanism respectively, and wraps around the anti-collision mechanism.

[0014] Furthermore, the protective sleeve has an air cavity filled with protective gas.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-collision oscillating welding laser head structure according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the anti-collision mechanism structure according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the annular conductive adhesive strip according to an embodiment of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of the floating disk according to an embodiment of the present invention.

[0020] In the accompanying drawings, the technical features referred to by the various reference numerals are as follows:

[0021] 1. Laser emitting mechanism; 2. Welding head mechanism; 201. Endoscope tube; 202. Zoom guide rail; 203. Focusing lens; 204. Protective lens; 205. Laser head nozzle; 3. Anti-collision mechanism; 301. Annular conductive rubber strip; 302. Zebra strip mating parts; 303. Rotary reset device; 3031. Floating disk; 3032. Several reset mating parts; 3031a. Reset slot; 4. Protective rubber sleeve. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to thermally conductive connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] Example

[0026] Please see Figure 1 This application provides an anti-collision mechanism and an anti-collision oscillating welding laser head. The anti-collision oscillating welding laser head includes a laser emitting mechanism 1, a welding head mechanism 2, and an anti-collision mechanism 3. The laser emitting mechanism 1 provides a welding laser; the welding head mechanism 2 adjusts and emits the welding laser provided by the laser emitting mechanism 1; one end of the laser emitting mechanism 1 has a laser emission port, and one end of the welding head mechanism 2 has a light inlet, with the laser emission port facing the light inlet; the anti-collision mechanism 3 is disposed between the laser emitting mechanism 1 and the welding head mechanism 2, surrounding the laser emission port and the light inlet.

[0027] The anti-collision mechanism 3 includes an annular conductive rubber strip 301, a zebra strip mating component 302, and a signal triggering device. The annular conductive rubber strip 301 has an insulating layer and a conductive layer arranged in a ring at intervals. The annular conductive rubber strip 301 is positioned around the laser emission port on the laser emission mechanism 1. The zebra strip mating component 302 is positioned opposite the annular conductive rubber strip 301 and around the light inlet on the welding head mechanism 2. When the anti-collision oscillating welding laser head of this application is working normally, the bottom end of the annular conductive rubber strip 301 and the top end of the zebra strip mating component 302 abut against each other. The signal triggering device is electrically connected to both the annular conductive rubber strip 301 and the zebra strip mating component 302. The signal triggering device is also signal-connected to the laser emission mechanism 1.

[0028] When the welding head mechanism 2 collides, it shifts, causing the zebra strip mating part 302 to shift as well. Since the zebra strip mating part 302 and the annular conductive rubber strip 301 are in contact, when the zebra strip mating part 302 shifts, one side of the zebra strip mating part 302 in the direction of shifting comes into contact with the annular conductive rubber strip 301. The contact part breaks, triggering the signal triggering device to send a stop signal to the laser emitting mechanism 1, shutting down the laser emitting mechanism 1 and preventing the laser from burning the shifted welding head mechanism 2. The annular conductive rubber strip 301 also plays a certain role in buffering.

[0029] In some embodiments, the signal triggering device is an intermediate relay with multiple contacts; each conductive layer on the annular conductive strip 301 is connected to a contact of the signal triggering device. When one side of the zebra strip mating part 302 in the offset direction contacts the annular conductive strip 301, the conductive layer of the contact portion breaks, and the corresponding contact breaks. Since each conductive layer corresponds to a contact of the signal triggering device, the break position of the annular conductive strip 301 can be determined, thereby determining the offset direction of the welding head mechanism 2, and further determining the direction of the collision generated by the welding head mechanism 2. After determining the direction of the collision generated by the welding head mechanism 2, the anti-collision oscillating welding laser head can drive the welding head mechanism 2 to retract away from the collision position, preventing further collision damage to the instrument.

[0030] Furthermore, the anti-collision mechanism 3 also includes a reset spring, which is fitted with an annular conductive rubber strip 301. When the anti-collision swing welding laser head is working normally, one end of the reset spring abuts against the laser emitting mechanism 1, and the other end abuts against the welding head mechanism 2.

[0031] In some embodiments, the anti-collision mechanism 3 further includes a rotary reset device 303. The rotary reset device 303 includes a floating disk 3031 and a plurality of reset mating parts 3032, with at least three reset mating parts 3032. One end of the reset spring is connected to the welding head mechanism 2, and the other end is connected to the floating disk 3031, with the floating disk facing the laser emitting mechanism 1. The floating disk 3031 has a through hole at its center, and an annular conductive rubber strip 301 is fitted onto the floating disk 3031, allowing it to slide up and down between the laser emitting mechanism 1 and the welding head mechanism 2. The side of the floating disk 3031 facing the laser emitting mechanism has a plurality of reset slots 3031a corresponding to the reset mating parts 3032, with each reset slot 3031a arranged non-equidistantly around the perimeter. The reset mating parts 3032 are positioned opposite the floating disk 2031 on the laser emitting mechanism 1. The intervals between each reset mating part 3032 correspond one-to-one with the intervals between each reset slot 3031a. When the anti-collision swing welding laser head is working, the spring pushes the floating disk 3031 to fit tightly against the lower part of the laser emitting mechanism 1, and the reset mating parts 3032 are inserted into the corresponding reset slots 3031a.

[0032] In some embodiments, the anti-collision mechanism 3 further includes an alarm device, which is connected to the floating disk 3031 or the reset mating member 3032; when the reset mating member 3032 is not inserted into the corresponding reset slot 3031a, the alarm device will continuously alarm.

[0033] When the welding head mechanism 2 experiences a rotational shift due to collision, the floating disk 3031 also rotates. Since the reset mating component 3032 is fixed to the laser emitting mechanism 1, it slips out of the reset slot 3031a, triggering an alarm. Because the reset slots 3031a are not equidistantly spaced, the reset mating component 3032 can only be inserted into the corresponding slot, ensuring that the floating disk 3031 can only engage with the reset mating component 3032 at a specific angle. When the welding head mechanism 2 fails to reset to the specific angle, the floating disk 3031 and the reset mating component 3032 remain separated, and the alarm continues until the welding head mechanism 2 resets.

[0034] The welding head mechanism 2 of this embodiment includes an endoscope barrel 201, a zoom guide rail 202, a focusing lens 203, a protective lens 204, and a laser head nozzle 205. The light inlet is located on one side of the endoscope barrel 201, and the other side of the endoscope barrel 201 communicates with the laser head nozzle 205. The zoom guide rail 202 is located inside the endoscope barrel 201, and the focusing lens 203 is located inside the endoscope barrel 201 and adjustablely mounted on the zoom guide rail 202, thereby enabling focusing of the welding head mechanism 2. The protective lens 204 is located inside the endoscope barrel 201, positioned between the focusing lens 203 and the laser head nozzle 205.

[0035] In some embodiments, the endoscope tube 201 of this application is made of metal and also serves as the zebra stripe fitting 302. In this case, the zebra stripe fitting 302 and the endoscope tube 201 are integrally formed, and there is no need to set up the zebra stripe fitting 302 separately.

[0036] In some embodiments, the anti-collision oscillating welding laser head of this application further includes a protective sleeve 4, which is connected to the welding head mechanism 2 and the laser emitting mechanism 1 respectively, and encloses the anti-collision mechanism 3; the protective sleeve 4 has an air cavity filled with a protective gas, which can be an inert gas or air. The protective sleeve 4 serves to prevent dust from entering the laser emitting mechanism 1 and the welding head mechanism 2, and also to provide cushioning.

[0037] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and the present invention also intends to include these modifications and variations.

Claims

1. A collision-avoiding wobble welding laser head, characterized by, The utility model relates to a kind of anti-collision swing welding laser head, including: laser emission mechanism, welding head mechanism and anti-collision mechanism;The anti-collision mechanism includes annular conductive adhesive tape, zebra strip cooperation piece and signal trigger device;The annular conductive adhesive tape is provided with annular arrangement and interval arrangement insulating layer and conductive layer;The zebra strip cooperation piece is opposite to the annular conductive adhesive tape arrangement;The anti-collision swing welding laser head works, and the zebra strip cooperation piece top and the annular conductive adhesive tape bottom abut;The signal trigger device is respectively connected with the annular conductive adhesive tape and zebra strip cooperation piece;The signal trigger device is intermediate relay, and the intermediate relay has multiple contacts;Each conductive layer on the annular conductive adhesive tape is respectively connected with the contact of the signal trigger device one-to-one;The laser emission mechanism one end is equipped with laser emission port, and the welding head mechanism one end is equipped with light inlet, and the laser emission port is opposite to the light inlet;The annular conductive adhesive tape is around the laser emission port and is arranged at the laser emission port of the laser emission mechanism, and the zebra strip cooperation piece is opposite to the annular conductive adhesive tape, and is arranged at the light inlet of the welding head mechanism;The signal trigger device is connected with the laser emission mechanism signal;The anti-collision mechanism further includes reset spring, and the reset spring is sleeved with the annular conductive adhesive tape;Anti-collision swing welding laser head normal work, and one end of the reset spring is abutted with the laser emission mechanism, and the other end is abutted with the welding head mechanism;Further include rotating reset device;The rotating reset device includes floating disc and several reset cooperation pieces;One end of the reset spring is connected with the welding head mechanism, and the other end is connected with the floating disc, and the floating disc is towards the laser emission mechanism;The floating disc center is equipped with through-hole, and the floating disc is sleeved with annular conductive adhesive tape, and can slide between the laser emission mechanism and the welding head mechanism;The floating disc side towards the laser emission mechanism is equipped with several reset clamping grooves, and the reset cooperation piece is arranged below the laser emission mechanism;The reset spring pushes the floating disc closely to the lower part of the laser emission mechanism when the anti-collision swing welding laser head works, and the reset cooperation piece is respectively inserted into corresponding reset clamping groove;Each reset clamping groove is not equidistantly spaced and is arranged around;The interval between the reset cooperation piece and the interval of each reset clamping groove one-to-one corresponds. The anti-collision mechanism further includes alarm device, and the alarm device is connected with the floating disc or reset cooperation piece. The welding head mechanism includes inner mirror tube, zoom guide rail, focusing lens, protective lens and laser head nozzle;One side of the inner mirror tube is equipped with light inlet, and the other side is communicated with the laser head nozzle;The zoom guide rail is arranged in the inner mirror tube, and the focusing lens is adjustably arranged on the zoom guide rail;The protective lens is arranged in the inner mirror tube and between the focusing lens and the laser head nozzle.

2. The anti-collision wobble welding laser head according to claim 1, characterized in that: Further include protective rubber sleeve, and the protective rubber sleeve is connected with the welding head mechanism and laser emission mechanism respectively, and wraps the anti-collision mechanism.

3. The anti-collision wobble welding laser head according to claim 2, characterized in that: The protective rubber sleeve is provided with air cavity, and the air cavity is filled with protective gas.

4. The anti-collision wobble welding laser head according to claim 3, wherein: ​ 5. The anti-collision wobble welding laser head according to claim 4, characterized in that: ​

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