Connecting assembly and laser processing equipment

Abstract

The utility model relates to the technical field of mechanical equipment, and discloses a connecting assembly and laser processing equipment, and the connecting assembly comprises a connecting seat, a rotating part and a locking assembly. The rotating part is provided with an inserting cavity, the inserting cavity extends from the first end of the rotating part to the second end of the rotating part, the first end of the rotating part is rotationally connected with the connecting base, a fixing pin is arranged in the inserting cavity, and the inserting cavity is provided with an inserting opening used for allowing the second end of second equipment to be inserted into at the second end of the rotating part. The fixing pin is used for clamping and fixing the second equipment to the rotating piece after rotating relative to the second equipment along with the rotating piece. The locking assembly comprises a locking ring and an elastic piece, the locking ring is arranged on the rotating piece in a sleeving mode, a fixing base is arranged on the outer wall of the rotating piece, and the two ends of the elastic piece are connected with the locking ring and the fixing base respectively. In the direction from the second end of the rotating piece to the first end of the rotating piece, the elastic piece presses the locking ring to the connecting seat, and the locking ring can overcome the elastic force of the elastic piece and then is separated from the connecting seat. In this way, the risk of loosening between the second equipment and the connecting assembly can be reduced.

Description

Technical Field

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

[0002] With the popularization of fiber laser processing technology, fiber lasers are widely used as energy sources on laser processing equipment. QBH standard fiber laser cable is an international standard interface model for high-power fiber laser transmission (hereinafter referred to as QBH fiber head). It integrates high-power cladding light stripper and end cap welding, low transmission loss, high carrying power, high reflection tolerance, and provides water cooling, gas protection and safety interlocking functions. As an important connecting component of fiber laser processing equipment, QBH fiber head connection assembly is used to connect and fix the QBH fiber head to the housing of the laser processing equipment.

[0003] The current connection assembly includes a connection seat and a rotating member. The connection seat is fixed on the housing of the laser processing equipment. One end of the rotating member is rotatably set on the connection seat. The rotating member is provided with a plug-in cavity. The other end of the rotating member is provided with an opening for inserting the QBH optical fiber head. The outer wall of the QBH optical fiber head is provided with a slide groove and a clamping groove connected to the slide groove. The QBH optical fiber head is inserted into the plug-in cavity through the opening. The fixing pin provided on the inner wall of the clamping cavity slides along the slide groove to the connection point between the slide groove and the clamping groove. The rotating member is rotated to rotate relative to the QBH optical fiber head, and the fixing pin enters the clamping groove to clamp and fix the QBH optical fiber head to the rotating member. Since the rotating member can be directly rotated in the opposite direction when it is clamped and fixed to the QBH optical fiber head after rotation, so that the fixing pin is disengaged from the clamping groove, the risk of loosening between the QBH optical fiber head and the connection assembly is high. Utility Model Content

[0004] In view of the problems existing in the background technology, the purpose of the present application is to provide a connection component and a laser processing device to overcome the above problems or at least partially solve the above problems.

[0005] According to the first aspect of the present application, a connection assembly is provided, which is used to connect and fix a first device to a second device, wherein the outer wall of the second device is provided with a slide groove and a clamping groove, wherein the slide groove is extended from the first end of the second device to the second end of the second device, one end of the clamping groove is connected to one side of the slide groove, and the other end of the clamping groove is extended along the circumference of the second device, and the connection assembly includes a connection seat, a rotating member and a locking assembly. One end of the connection seat is used to be fixed to the first device. The rotating member is provided with a plug-in cavity, which is extended from the first end of the rotating member to the second end of the rotating member, and the first end of the rotating member is rotatably connected to the connection seat, and a fixing pin is provided in the plug-in cavity, wherein the plug-in cavity forms a plug-in interface at the second end of the rotating member, wherein the plug-in interface is used for the second end of the second device to be inserted into the plug-in cavity, and the fixing pin is used to be inserted into the slide groove, and the rotating member can rotate relative to the connection seat so that the fixing pin enters the clamping groove, thereby clamping and fixing the second device to the rotating member. The locking assembly includes a locking ring and an elastic member, wherein the locking ring is sleeved on the rotating member, a fixing seat is provided on the outer wall of the rotating member, one end of the elastic member is connected to the locking ring, and the other end of the elastic member is connected to the fixing seat. Along the direction from the second end of the rotating member to the first end of the rotating member, the elastic member presses the locking ring against the connecting seat, and the locking ring can overcome the elastic force of the elastic member and move along the direction from the first end of the rotating member to the second end of the rotating member, so that the locking ring is separated from the connecting seat.

[0006] In one or more optional embodiments above, a limiting groove is provided on the outer wall of the rotating member, and the limiting groove includes a first axial section and a circumferential section, the first axial section is extended along the first end of the rotating member toward the second end of the rotating member, one end of the circumferential section is connected to the end of the first axial section away from the connecting seat, and the other end of the circumferential section is extended along the circumference of the rotating member. The locking ring includes an annular portion and a limiting protrusion, the limiting protrusion is connected to the annular portion, the annular portion is sleeved on the rotating member, the limiting protrusion protrudes from the annular portion in a direction toward the axis of the annular portion, and the limiting protrusion is slidably disposed in the limiting groove.

[0007] In one or more of the above optional embodiments, the limiting groove includes a second axial segment, one end of the second axial segment is connected to the other end of the circumferential segment, the other end of the second axial segment is extended along the second end of the rotating member toward the first end of the rotating member, and along the direction from the second end of the rotating member to the first end of the rotating member, the length of the second axial segment is less than the length of the first axial segment.

[0008] In one or more optional embodiments above, the limiting protrusion is provided at one end of the annular portion facing the connecting seat, and at least a portion of the limiting protrusion protrudes from the annular portion along the direction from the second end of the rotating member to the first end of the rotating member. A slot is provided at one end of the connecting seat facing the fixed seat, and the slot is used for the limiting protrusion to be inserted along the direction from the second end of the rotating member to the first end of the rotating member, so as to limit the limiting protrusion in the circumferential direction of the rotating member.

[0009] In one or more of the above optional embodiments, the elastic member is a spring, and the elastic member is sleeved on the rotating member.

[0010] In one or more of the above optional embodiments, the inner side wall of the locking ring is provided with a step surface facing the fixed seat, one end of the elastic member abuts against the step surface, and the other end of the elastic member abuts against the surface of the fixed seat facing the connecting seat.

[0011] In one or more of the above optional embodiments, the connecting seat is provided with a cavity, the cavity has a first opening formed at one end of the connecting seat facing away from the fixed seat, the cavity has a second opening formed at one end of the connecting seat facing the fixed seat, and the first end of the rotating member is inserted into the cavity through the second opening.

[0012] In one or more of the above optional embodiments, the connecting assembly also includes a limiting ring, which includes a main body and a limiting portion, the limiting portion is arranged around the outer peripheral wall of the main body, the main body is inserted into the cavity through the first opening, one end of the main body is connected to the first end of the rotating member, and the limiting portion is used to abut against the connecting seat along the direction from the first end of the rotating member to the second end of the rotating member to limit the rotating member.

[0013] In one or more optional embodiments above, a limited motion hole is provided on the side wall of the rotating member, the limited motion hole is extended along the circumference of the rotating member, and a limited motion pin is provided on the inner wall of the cavity, and the limited motion pin is inserted into the limited motion hole.

[0014] According to a second aspect of the present application, there is provided a laser processing device, comprising a laser welding gun, an optical fiber head, a laser generator, an optical fiber cable and the connection assembly as described above.

[0015] The beneficial effect of the embodiment of the present application is that the connecting component of the embodiment of the present application, by pressing the locking ring against the fixing seat through the elastic member, can prevent the rotating member from rotating relative to the connecting seat, thereby reducing the risk of the fixing pin disengaging from the slot after the rotating member rotates, causing the second device to loosen from the first device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 A schematic diagram of a connection assembly provided in an embodiment of the present application connecting and fixing a first device to a second device;

[0018] Figure 2 A schematic diagram of a connection component, a first device, and a second device provided in an embodiment of the present application;

[0019] Figure 3 An exploded view of a connection assembly provided in an embodiment of the present application;

[0020] Figure 4 Another exploded view of a connection assembly provided in an embodiment of the present application;

[0021] Figure 5 A partial enlarged cross-sectional view of a connection assembly provided in an embodiment of the present application that connects and fixes a first device to a second device, and an elastic member presses a locking ring against a connection seat;

[0022] Figure 6 A partial enlarged cross-sectional view of a connection assembly provided in an embodiment of the present application, in which a first device is connected and fixed to a second device, and a locking ring is detached from a connection seat after overcoming the elastic force of an elastic member;

[0023] Figure 7 A schematic diagram of a limiting protrusion of a connection assembly provided in an embodiment of the present application when it is located in a first axial section;

[0024] Figure 8 A schematic diagram of a limiting protrusion of a connection assembly provided in an embodiment of the present application when it is located within a circumferential segment;

[0025] Fig. 9 A schematic diagram of a connection assembly provided in an embodiment of the present application with a limiting protrusion located in the second axial segment. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0028] In the description of this specification, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] See also Figure 1 and Figure 2 An embodiment of the present application provides a connecting component 100 for connecting and fixing a first device A to a second device B. A slide groove b1 and a card groove b2 are provided on an outer wall of the second device B. The slide groove b1 extends from the first end of the second device B toward the second end of the second device B. One end of the card groove b2 is connected to one side of the slide groove b1, and the other end of the card groove b2 extends along the circumference of the second device B.

[0031] See also Figure 2-6The connection assembly 100 includes a connection seat 1, a rotating member 2 and a locking assembly 3. One end of the connection seat 1 is used to be fixed to the first device A. The rotating member 2 is provided with a plug-in cavity 21, which is extended from the first end of the rotating member 2 to the second end of the rotating member 2. The first end of the rotating member 2 is rotatably connected to the connection seat 1. A fixing pin 22 is provided in the plug-in cavity 21. The plug-in cavity 21 is formed with a plug-in port 211 at the second end of the rotating member 2. The plug-in port 211 is used for the second end of the second device B to be inserted into the plug-in cavity 21. The fixing pin 22 is used to insert into the slide groove b1. The rotating member 2 can rotate relative to the connection seat 1 so that the fixing pin 22 enters the card groove b2, thereby clamping and fixing the second device B to the rotating member 2. The locking assembly 3 includes a locking ring 31 and an elastic member 32. The locking ring 31 is sleeved on the rotating member 2. The outer wall of the rotating member 2 is provided with a fixing seat 23. One end of the elastic member 32 is connected to the locking ring 31, and the other end of the elastic member 32 is connected to the fixing seat 23.

[0032] Along the direction X from the second end of the rotating member 2 to the first end of the rotating member 2, the elastic member 32 presses the locking ring 31 against the connecting seat 1, and the locking ring 31 can overcome the elastic force of the elastic member 32 and move along the direction Y from the first end of the rotating member 2 to the second end of the rotating member 2, so that the locking ring 31 is separated from the connecting seat 1. The elastic member 32 presses the locking ring 31 against the connecting seat 1, and the friction between the locking ring 31 and the connecting seat 1 can prevent the rotating member 2 from rotating relative to the connecting seat 1. When connecting the first device A and the second device B, insert the first end of the second device B into the plug interface 211, align the slide groove b1 of the second device B with the fixing pin 22 in the plug-in cavity 21 so that the fixing pin 22 can enter the slide groove b1, and the fixing pin 22 moves relative to the second device B to the connection point between the slide groove b1 and the card slot b2 during the insertion of the second device B into the plug-in cavity 211, and press the locking ring 31 in the direction Y from the first end of the rotating member 2 to the second end of the rotating member 2. The locking ring 31 overcomes the elastic force of the elastic member 32 and then detaches from the connecting seat 1. The rotating member 2 is rotated so that the fixing pin 22 enters the card slot b2 after rotating with the rotating member 2, and finally the second device B is snap-fitted and fixed to the connecting component 100. At this time, the elastic member 32 is restored to the state of pressing the locking ring 31 to the connecting seat 1.

[0033] In the connection assembly 100 of the embodiment of the present application, the elastic member 32 presses the locking ring 31 against the connection base 1, which can prevent the rotating member 2 from rotating relative to the connection base 1, thereby reducing the risk of the fixing pin 22 disengaging from the slot b2 after rotating with the rotating member 2, causing the second device B to loosen from the first device A.

[0034] In some embodiments, one end of the fixing pin 22 is fixed to the rotating member 2 , and the other end of the fixing pin 22 is disposed toward the rotating axis of the rotating member 2 .

[0035] It can be understood that the number of fixing pins 22 can be set to one or more according to the number of slide grooves b1 and card slots b2 provided in the second device B. For example, in some other embodiments, the second device B is provided with three slide grooves b1 and three card slots b2 arranged at equal intervals along the circumference of the second device B. The card slots b2 are connected to the slide grooves b1 in a one-to-one manner, and each card slot b2 extends in the same direction. Three fixing pins 22 are correspondingly arranged in the plug-in cavity 21. The three fixing pins 22 are arranged at equal intervals around the rotating axis of the rotating member 2, and one fixing pin 22 is correspondingly used to be plugged into one slide groove b1 and one card slot b2.

[0036] See also Figure 3 , Figure 7 and Figure 8 In some embodiments, the outer wall of the rotating member 2 is provided with a limiting groove 24, which includes a first axial section 241 and a circumferential section 242. The first axial section 241 is extended in the direction X from the first end of the rotating member 2 to the second end of the rotating member 2. One end of the circumferential section 242 is connected to the end of the first axial section 241 away from the connecting seat 1, and the other end of the circumferential section 242 is extended in the circumferential direction of the rotating member 2. The locking ring 31 includes an annular portion 311 and a limiting protrusion 312. The limiting protrusion 312 is connected to the annular portion 311. The annular portion 311 is sleeved on the rotating member 2. The limiting protrusion 312 protrudes from the annular portion 311 in the direction toward the axis Z of the annular portion 311. The limiting protrusion 312 is slidably disposed in the limiting groove 24.

[0037] The annular portion 311 is pressed in the direction Y from the first end of the rotating member 2 to the second end of the rotating member 2, so that the limiting protrusion 312 slides along the first axial section 241 to the connection with the circumferential section 242, and then the annular portion 311 is rotated to make the limiting protrusion 312 enter the circumferential section 242. The inner side wall of the circumferential section 242 can limit the limiting protrusion 312 in the direction X from the second end of the rotating member 2 to the first end of the rotating member 2, so that the locking ring 31 is maintained in a state of being detached from the connecting seat 1.

[0038] See also Figure 3 and Fig. 9 In some embodiments, the limiting groove 24 includes a second axial segment 243, one end of the second axial segment 243 is connected to an end of the circumferential segment 242 away from the first axial segment 241, and the other end of the second axial segment 243 is extended along the direction X from the second end of the rotating member 2 to the first end of the rotating member 2, and along the direction X from the second end of the rotating member 2 to the first end of the rotating member 2, the length of the second axial segment 243 is less than the length of the first axial segment 241.

[0039] When the annular portion 311 is rotated so that the limiting protrusion 312 enters the second axial segment 243 through the circumferential segment 242, the annular portion 311 is loosened, and the limiting protrusion 312 is pushed into the end of the second axial segment 243 away from the circumferential segment 242 under the elastic force of the elastic member 32. The limiting protrusion 312 is clamped in the second axial segment 243, so that the locking ring 31 can be stably maintained in a state of being detached from the connecting seat 1.

[0040] It can be understood that, along the direction X from the second end of the rotating member 2 to the first end of the rotating member 2, the length of the second axial segment 243 and the length of the first axial segment 241 can be set according to actual conditions, so that when the limiting protrusion 312 abuts against the end of the second axial segment 243 away from the circumferential segment 242, the locking ring 31 can be in a separated state from the connecting seat 1.

[0041] See also Figure 3 and Figure 4 In some embodiments, the limiting protrusion 312 is disposed at one end of the annular portion 311 facing the connecting seat 1, and at least a portion of the limiting protrusion 312 protrudes from the annular portion 311 along the direction X from the second end of the rotating member 2 to the first end of the rotating member 2. A slot 11 is disposed at one end of the connecting seat 1 facing the fixed seat 23, and the slot 11 is used for the limiting protrusion 312 to be inserted along the direction X from the second end of the rotating member 2 to the first end of the rotating member 2, so as to limit the limiting protrusion 312 in the circumferential direction of the rotating member 2, thereby preventing the annular portion 311 from rotating relative to the connecting seat 1.

[0042] In some embodiments, the outer surface of the annular portion 311 is provided with a plurality of first anti-slip grooves (not shown) arranged in sequence.

[0043] In some embodiments, the elastic member 32 is a spring, and the elastic member 32 is sleeved on the outer peripheral wall of the rotating member 2 .

[0044] See also Figure 5 and Figure 6 In some embodiments, the inner side wall of the locking ring 31 is provided with a step surface 313 facing the fixing seat 23, one end of the elastic member 32 abuts against the step surface 313, and the other end of the elastic member 32 abuts against the surface of the fixing seat 23 facing the connecting seat 1. The elastic force of the elastic member 32 causes the elastic member 32 to press against the surface of the fixing seat 23 facing the connecting seat 1, and the friction between the elastic member 32 and the surface of the fixing seat 23 facing the connecting seat 1 can play a role in preventing the fixing seat 23 from driving the rotating member 2 to rotate relative to the connecting seat 1.

[0045] It is understandable that the elastic member 32 is not limited to being connected to the fixing seat 23 by the above-mentioned abutment against the fixing seat 23. The fixing method can be selected according to the material and shape of the elastic member 32. For example, the elastic member 32 can also be fixed to the fixing seat 23 by bonding, welding, threaded fasteners, etc.

[0046] In some embodiments, the fixed seat 23 is arranged around the circumference of the rotating member 2, one end of the annular portion 311 is sleeved on the outer circumferential wall of the rotating member 2, and the other end of the annular portion 311 is sleeved on the outer circumferential wall of the fixed seat 23. The inner wall of the annular portion 311, the step surface 313, the outer circumferential wall of the rotating member 2 and the surface of the fixed seat 23 facing the step surface 313 together enclose a receiving cavity 3111, and the elastic member 32 is arranged in the receiving cavity 3111.

[0047] In some embodiments, the connection assembly 100 further includes a sealing ring 4 , which is disposed between the inner wall of the annular portion 311 and the outer peripheral wall of the fixing seat 23 , and is used to seal the gap between the inner wall of the annular portion 311 and the outer peripheral wall of the fixing seat 23 .

[0048] In some embodiments, a gripping portion 25 is further provided on a side of the fixing seat 23 facing away from the connecting seat 1 . The gripping portion 25 is fixed to the rotating member 2 . The gripping portion 25 is used for an operator to grip and rotate the rotating member 2 .

[0049] In some embodiments, the gripping portion 25 is in a ring shape, and a plurality of second anti-slip grooves (not shown) arranged in sequence are disposed on the outer surface of the gripping portion 25 .

[0050] See also Figure 3-6 In some embodiments, the connecting seat 1 is provided with a cavity 12, the cavity 12 has a first opening 121 formed at one end of the connecting seat 1 facing away from the fixed seat 23, and a second opening 122 formed at one end of the connecting seat 1 facing the fixed seat 23, and the first end of the rotating member 2 is inserted into the cavity 12 through the second opening 122.

[0051] In some embodiments, the outer surface of the portion of the rotating part 2 located in the cavity 12 is generally cylindrical, and the inner surface of the cavity 12 is generally cylindrical. The outer surface of the portion of the rotating part 2 located in the cavity 12 cooperates with the inner surface of the cavity 12, so that the rotating part 2 can rotate in the cavity 12 relative to the connecting seat 1.

[0052] In some embodiments, the connecting assembly 100 also includes a limiting ring 5, which includes a main body 51 and a limiting portion 52. The limiting portion 52 is arranged around the outer peripheral wall of the main body 51. The main body 51 is inserted into the cavity 12 through the first opening 121. One end of the main body 51 is connected to the first end of the rotating member 2. The limiting portion 52 is used to abut against the connecting seat 1 along the direction Y from the first end of the rotating member 2 to the second end of the rotating member 2 to limit the rotating member 2.

[0053] In some embodiments, the main body 51 is generally in the shape of a flat cylinder, the limiting portion 52 is in the shape of an annular plate, the limiting portion 52 has a first surface and a second surface arranged opposite to each other, one end of the main body 51 is connected to the second surface, and a rivet hole is formed at the other end of the main body 51, and the first end of the rotating part 2 is riveted and fixed to the main body 51 through the rivet hole.

[0054] In some embodiments, the first device A is provided with an installation groove a1, and the end of the connecting seat 1 facing away from the fixing seat 23 is inserted into the installation groove a1, and the limiting portion 52 is located between the bottom of the installation groove a1 and the end face of the connecting seat 1 facing away from the fixing seat 23.

[0055] In some embodiments, the first surface of the limiting portion 52 abuts against the bottom of the installation groove a1 , and the second surface of the limiting portion 52 abuts against the end surface of the connecting seat 1 facing away from the fixing seat 23 .

[0056] In some embodiments, a limited motion hole 26 is provided on the side wall of the rotating member 2, and the limited motion hole 26 is extended along the circumference of the rotating member 2. A limited motion pin (not shown) is provided on the inner wall of the cavity 12, and the limited motion pin is inserted into the limited motion hole 26. The limited motion hole 26 and the limited motion pin cooperate to limit the position of the rotating member 2, so that the rotating member 2 can only rotate relative to the connecting seat 1 at a preset angle.

[0057] Based on the same inventive concept, the embodiment of the present application also provides a laser processing device, including a laser welding gun, an optical fiber head, a laser generator, an optical fiber cable, and a connection assembly 100 in any of the above embodiments. One end of the optical fiber cable is connected to the optical fiber head, and the other end is connected to the laser generator. The first device A is a laser welding gun, the second device B is an optical fiber head, and the connection assembly 100 is used to connect the laser welding gun to the optical fiber head.

[0058] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A connection assembly, used to connect and fix a first device to a second device, wherein the outer wall of the second device is provided with a slide groove and a clamping groove, wherein the slide groove is extended from the first end of the second device to the second end of the second device, one end of the clamping groove is connected to one side of the slide groove, and the other end of the clamping groove is extended along the circumference of the second device, characterized in that: include: A connecting socket, one end of which is used to be fixed to the first device; The rotating member is provided with a plug-in cavity, the plug-in cavity is extended from the first end of the rotating member to the second end of the rotating member, the first end of the rotating member is rotatably connected to the connecting seat, a fixing pin is provided in the plug-in cavity, the plug-in cavity is formed with a plug-in interface at the second end of the rotating member, the plug-in interface is used for the second end of the second device to be inserted into the plug-in cavity, the fixing pin is used to insert into the slide slot, the rotating member can rotate relative to the connecting seat so that the fixing pin enters the card slot, and then the second device is fixed to the rotating member by card connection; A locking assembly, comprising a locking ring and an elastic member, wherein the locking ring is sleeved on the rotating member, a fixing seat is provided on the outer wall of the rotating member, one end of the elastic member is connected to the locking ring, and the other end of the elastic member is connected to the fixing seat; Along the direction from the second end of the rotating member to the first end of the rotating member, the elastic member presses the locking ring against the connecting seat, and the locking ring can overcome the elastic force of the elastic member and move along the direction from the first end of the rotating member to the second end of the rotating member to make the locking ring detach from the connecting seat.

2. The connection assembly according to claim 1, characterized in that: A limiting groove is provided on the outer wall of the rotating member, and the limiting groove includes a first axial section and a circumferential section, wherein the first axial section is extended along the first end of the rotating member toward the second end of the rotating member, one end of the circumferential section is connected to an end of the first axial section away from the connecting seat, and the other end of the circumferential section is extended along the circumference of the rotating member; The locking ring includes an annular portion and a limiting protrusion, the limiting protrusion is connected to the annular portion, the annular portion is sleeved on the rotating member, the limiting protrusion protrudes from the annular portion along a direction toward the axis of the annular portion, and the limiting protrusion is slidably disposed in the limiting groove.

3. The connection assembly according to claim 2, characterized in that: The limiting groove includes a second axial segment, one end of the second axial segment is connected to the other end of the circumferential segment, the other end of the second axial segment is extended along the second end of the rotating member toward the first end of the rotating member, and along the direction from the second end of the rotating member to the first end of the rotating member, the length of the second axial segment is less than the length of the first axial segment.

4. The connection assembly according to claim 2, characterized in that: The limiting protrusion is arranged at one end of the annular portion facing the connecting seat, and at least a portion of the limiting protrusion protrudes from the annular portion along the direction from the second end of the rotating member to the first end of the rotating member; A slot is provided at one end of the connecting seat facing the fixing seat, and the slot is used for the limiting protrusion to be inserted along the second end of the rotating member toward the first end of the rotating member, so as to limit the limiting protrusion in the circumferential direction of the rotating member.

5. The connection assembly according to claim 1, characterized in that: The elastic member is a spring, and the elastic member is sleeved on the rotating member.

6. The connection assembly according to claim 5, characterized in that: The inner side wall of the locking ring is provided with a step surface facing the fixing seat, one end of the elastic member abuts against the step surface, and the other end of the elastic member abuts against the surface of the fixing seat facing the connecting seat.

7. The connection assembly according to claim 5, characterized in that: The connecting seat is provided with a cavity, the cavity has a first opening formed at one end of the connecting seat facing away from the fixed seat, the cavity has a second opening formed at one end of the connecting seat facing the fixed seat, and the first end of the rotating member is inserted into the cavity through the second opening.

8. The connection assembly according to claim 7, characterized in that: The connecting assembly also includes a limiting ring, which includes a main body and a limiting part. The limiting part is arranged around the outer peripheral wall of the main body. The main body is inserted into the cavity through the first opening. One end of the main body is connected to the first end of the rotating member. The limiting part is used to abut against the connecting seat along the direction from the first end of the rotating member to the second end of the rotating member to limit the rotating member.

9. The connection assembly according to claim 7, characterized in that: A limited motion hole is arranged on the side wall of the rotating member, and the limited motion hole is arranged to extend along the circumferential direction of the rotating member. A limited motion pin is arranged on the inner wall of the cavity, and the limited motion pin is inserted into the limited motion hole.

10. A laser processing device, characterized in that: include: Laser welding gun; Fiber optic head; Laser generator; An optical fiber cable, one end of which is connected to the optical fiber head, and the other end of which is connected to the laser generator; The connection assembly according to any one of claims 1 to 9, used to connect the laser welding gun to the optical fiber head.

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