Laser welding equipment for processing marine loudspeakers

Abstract

The present invention relates to the technical field of laser welding and discloses a laser welding device for processing marine loudspeakers. The device comprises a work surface and a rotating seat rotatably connected to the upper end of the work surface. The work surface is provided with a rotating assembly for driving the rotating seat to rotate. The device also comprises: a cylindrical protrusion provided at the upper end of the rotating seat at the axis center; a vertical guide groove 1 vertically provided at the top of the cylindrical protrusion; a telescopic block slidably connected within the vertical guide groove 1; a telescopic drive assembly provided on the cylindrical protrusion for driving the telescopic block to move up and down; four horizontal guide grooves 1 evenly arranged on the side wall of the telescopic block; an L-shaped positioning block slidably connected within the horizontal guide groove 1; and a synchronous control mechanism provided within the telescopic block. By positioning and clamping the center position of the basin frame and the washer, and applying pressure to the washer against the basin frame, the weld seam can move smoothly when the basin frame and the washer rotate, thereby improving the welding effect of the basin frame and the washer.

Description

Technical Field

[0001] The invention belongs to the technical field of laser welding, and in particular relates to laser welding equipment for processing marine loudspeakers. Background Art

[0002] A marine loudspeaker is a device designed specifically for use on ships, primarily for issuing commands, warnings, and routine broadcasts. It typically consists of amplification, radio, recorder, and remote control components.

[0003] The main component of the sound amplification part is the speaker. During the production process of the speaker, the basin frame and the washer need to be fixedly connected. The current practice is mostly to fix the basin frame and the washer through riveting and bolting.

[0004] Stress concentration is easily generated around rivets and bolt holes, and long-term vibration may lead to fatigue fracture. The additional weight of metal fasteners affects the transient response of the speaker. When the bolt preload is insufficient, the joint surface may fretting and rubbing, causing abnormal noise or loosening. Therefore, a laser welding device for marine loudspeaker processing is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the embodiment of the present invention is to provide a laser welding device for processing a marine loudspeaker, aiming to solve the problem.

[0006] The present invention is achieved as follows: a laser welding device for processing marine loudspeakers comprises a work table and a rotating seat rotatably connected to the upper end of the work table, the work table being provided with a rotating assembly for driving the rotating seat to rotate, and further comprising: a cylindrical protrusion arranged at the axis center at the upper end of the rotating seat, a vertical guide groove 1 vertically arranged on the top of the cylindrical protrusion, a telescopic block being slidably connected in the vertical guide groove 1, a telescopic driving assembly being provided on the cylindrical protrusion for driving the telescopic block to move up and down; four horizontal guide grooves 1 being evenly arranged on the side wall of the telescopic block, an L-shaped positioning block being slidably connected in the horizontal guide groove 1, a synchronous control mechanism being provided in the telescopic block, the synchronous control mechanism being used to drive the four L-shaped positioning blocks to move synchronously toward or in opposite directions; a basin positioning assembly for positioning and clamping the basin is provided on the rotating seat, and a laser welding assembly for welding the weld is provided on the work table.

[0007] According to a further technical solution, the rotating assembly includes an outer gear ring fixed on the side wall of the rotating seat, and a motor 1 fixed on the bottom of the work table. The telescopic end of the motor 1 passes through the work table and is fixed with a gear, which is engaged with the outer gear ring.

[0008] The linkage is connected to the L-shaped positioning block, and the two ends of the connecting shaft are respectively connected to the L-shaped positioning block and the inner wall of the horizontal guide groove. A connecting chamber is vertically arranged in the telescopic block, and the connecting chamber is communicated with the other end of the piston chamber. A sliding tube is slidably connected in the connecting chamber, and a rotating air pipe joint is fixed to the bottom of the working table, one end of the rotating air pipe joint is connected to an external air source, and the other end of the rotating air pipe joint is connected to the sliding tube. A synchronous disk is rotatably connected above the L-shaped positioning block in the telescopic block, and four inclined long holes are evenly provided on the synchronous disk. A transmission shaft is fixed on the top of the four L-shaped positioning blocks, and the four transmission shafts are respectively slidably connected to the four long holes.

[0009] A further technical solution is that the telescopic drive assembly includes an annular cavity 1 arranged in the rotating seat, and an annular cavity 2 arranged on the top of the work table. The annular cavity 1 is connected to the annular cavity 2. A trachea joint connected to the annular cavity 2 is fixed at the bottom of the work table. The trachea joint is connected to the air source device. An L-shaped pipeline is arranged in the cylindrical protrusion, one end of the L-shaped pipeline is connected to the annular cavity 1, and the other end of the L-shaped pipeline is connected to the upper part of the vertical guide groove 1. A spring is installed at the bottom of the telescopic block, and the spring is arranged in the vertical guide groove 1.

[0010] A further technical solution is that the basin rack positioning assembly includes four horizontal guide grooves 2 evenly arranged in a ring on the top of the rotating seat, and a guide block 1 is slidably connected in the four horizontal guide grooves 2. A positioning shaft is fixed on the top of the guide block 1, and a transmission shaft 2 is fixed on the bottom of the guide block 1. A synchronous ring is rotatably connected below the guide block 1 in the rotating seat, and four inclined long holes 2 are evenly arranged on the synchronous ring. The four transmission shafts 2 are respectively slidably connected in the four long holes 2. A transmission assembly is provided in the rotating seat, and the transmission assembly drives the guide block 1 to move through the telescopic drive assembly.

[0011] A further technical solution is that the transmission assembly includes a piston chamber 2 arranged horizontally in the rotating seat, a piston 2 is slidably connected in the piston chamber 2, a connecting shaft 2 is fixed to one end of the piston 2, the connecting shaft 2 passes through one end of the piston chamber 2 and is connected to one end of the guide block 1, the other end of the piston chamber 2 is connected to the annular cavity 1, the other end of the guide block 1 is connected to a compression spring, and the end of the compression spring is fixed in the horizontal guide groove 2.

[0012] A further technical solution is that the laser welding assembly includes a bracket rotatably connected to the top of the work table, and a motor three fixed to the bottom of the work table, the rotating end of the motor three passes through the work table and is connected to the bracket, a concave mounting block is fixed on the bracket, a laser welding head is rotatably connected to the concave mounting block, the laser welding head is connected to the laser welding device, and a motor two is fixed on the side wall of the concave mounting block, and the rotating end of the motor two is connected to the rotation axis of the laser welding head.

[0013] A further technical solution also includes a real-time control system for welding status, which is used to adjust the welding angle and focal length of the laser welding head. The real-time control system for welding status includes:

[0014] The data acquisition module obtains the horizontal distance between the rotation center of the laser welding head and the side wall of the washer, the current welding angle of the laser welding head, and the vertical height between the rotation center of the laser welding head and the weld;

[0015] The welding angle analysis module builds a welding angle model based on the horizontal distance between the laser welding head rotation center and the washer side wall and the vertical height between the laser welding head rotation center and the weld, and outputs the target welding angle;

[0016] The welding angle processing module performs difference processing on the target welding angle and the current laser welding head welding angle and obtains the angle adjustment amount information;

[0017] The welding focal length analysis module builds a focal length output model and outputs focal length adjustment information based on the current laser welding head welding angle, target welding angle, and the vertical height between the laser welding head rotation center and the weld;

[0018] The welding control module adjusts the laser welding head to the target welding angle and target welding focal length according to the angle adjustment amount information and the focal length adjustment amount information.

[0019] In a further technical solution, the welding angle model is:

[0020]

[0021] in, is the target welding angle, is the vertical height between the rotation center of the laser welding head and the weld, It is the horizontal distance between the rotation center of the laser welding head and the side wall of the washer.

[0022] In a further technical solution, the focal length output model is:

[0023]

[0024] in, is the focal length adjustment amount, is the target welding angle, It is the welding angle of the current laser welding head.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention provides a laser welding device for processing marine loudspeakers. In the present invention, by positioning and clamping the center positions of the basin frame and the washer, and applying pressure to the washer toward the basin frame, the weld can move smoothly when the basin frame and the washer rotate, thereby improving the welding effect of the basin frame and the washer. Laser welding is used to improve the connection sealing of the basin frame and the washer and prevent moisture intrusion. Laser welding can eliminate fasteners, reduce the weight of the loudspeaker, and have lower welding interface damping and reduced energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a laser welding device for processing a marine loudspeaker provided by the present invention;

[0028] Figure 2 The present invention provides Figure 1 Schematic diagram of the internal structure of the center basin frame and washer;

[0029] Figure 3 The present invention provides Figure 2 Schematic diagram of the internal structure of the middle work surface, rotating seat and cylindrical protrusion;

[0030] Figure 4 The present invention provides Figure 3 Schematic diagram of the enlarged structure of D in the middle;

[0031] Figure 5 The present invention provides Figure 4 Schematic diagram of the internal structure of the middle telescopic block;

[0032] Figure 6 The present invention provides Figure 5 Schematic diagram of the structure of the L-shaped positioning block and the synchronous disk;

[0033] Figure 7 The present invention provides Figure 4 Schematic diagram of the structure of the middle guide block 1 and the synchronizer ring;

[0034] Figure 8 The present invention provides Figure 1 Schematic diagram of the structure of the laser welding component;

[0035] Figure 9 The present invention provides Figure 8 Schematic diagram of the welding status of the laser welding head.

[0036] In the accompanying drawings: 101, work surface; 102, rotating seat; 103, cylindrical protrusion; 104, telescopic block; 105, vertical guide groove 1; 106, horizontal guide groove 1; 107, L-shaped positioning block; 108, basin stand; 109, washer; 110, support sleeve; 111, fixing bolt;

[0037] 2. Rotating assembly; 201. External gear ring; 202. Gear; 203. Motor 1;

[0038] 3. Synchronous control mechanism; 301. Piston chamber 1; 302. Piston 1; 303. Connecting shaft 1; 304. Tension spring; 305. Connecting chamber; 306. Sliding tube; 307. Rotating air pipe joint; 308. Synchronous disk; 309. Long hole 1; 310. Transmission shaft 1;

[0039] 4. Laser welding assembly; 401. Concave mounting block; 402. Laser welding head; 403. Motor 2; 404. Motor 3;

[0040] 5. Basin frame positioning assembly; 501. Horizontal guide groove 2; 502. Guide block 1; 503. Positioning shaft; 504. Synchronizing ring; 505. Long hole 2; 506. Drive shaft 2;

[0041] 6. Telescopic drive assembly; 601. Annular cavity 1; 602. Annular cavity 2; 603. Air pipe connector; 604. L-shaped pipe; 605. Spring;

[0042] 7. Transmission assembly; 701. Piston chamber 2; 702. Piston 2; 703. Connecting shaft 2; 704. Compression spring;

[0043] 8. Bracket; 801. Rotating sleeve; 802. Telescopic rod; 803. Stop bolt 1; 804. Horizontal slide bar; 805. Stop bolt 2. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0045] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0046] Example 1

[0047] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, a laser welding device for processing marine loudspeakers provided by an embodiment of the present invention includes a work surface 101, and a rotating base 102 rotatably connected to the upper end of the work surface 101, the work surface 101 is provided with a rotating component 2 for driving the rotating base 102 to rotate, and further includes: a cylindrical protrusion 103 provided at the upper end of the rotating base 102 at the axis center, a vertical guide groove 105 vertically provided on the top of the cylindrical protrusion 103, a telescopic block 104 is slidably connected in the vertical guide groove 105, and a telescopic driving component 6 for driving the telescopic block 104 to move up and down is provided on the cylindrical protrusion 103; four horizontal guide grooves 106 are evenly provided on the side wall of the telescopic block 104, an L-shaped positioning block 107 is slidably connected in the horizontal guide groove 106, and a synchronous control mechanism 3 is provided in the telescopic block 104. The synchronous control mechanism 3 is used to drive the four L-shaped positioning blocks 107 to move synchronously toward or in opposite directions. When the four synchronously move in opposite directions, the short side wall of the telescopic block 104 positions the inner wall of the washer 109; when the telescopic block 104 moves downward, the long side of the L-shaped positioning block 107 presses the washer 109 downward and fixes the washer 109. The rotating seat 102 is provided with a basin positioning assembly 5 for positioning and clamping the basin frame 108; the work table 101 is provided with a laser welding assembly 4 for welding the weld seam, and the side walls of the cylindrical protrusion 103 are threadedly connected with a support sleeve 110 and a fixing bolt 111 from top to bottom. The support sleeve 110 is used to support the top of the basin frame 108 to prevent the top of the basin frame 108 from being deformed by downward pressure. The support height of the support sleeve 110 can be adjusted by rotating the support sleeve 110 and the fixing bolt 111.

[0048] In the embodiment of the present invention, in the initial state, the L-shaped positioning block 107 is retracted in the telescopic block 104, and the telescopic block 104 is away from the cylindrical protrusion 103. When the basin frame 108 and the washer 109 are welded, the basin frame 108 is placed on the rotating seat 102, and the washer 109 is placed on the top of the basin frame 108. The telescopic block 104 passes through the center holes of the basin frame 108 and the washer 109. The synchronous control mechanism 3 drives the four telescopic blocks 104 to move in opposite directions synchronously. The short side walls of the telescopic block 104 position the inner walls of the washer 109, thereby making the washer 109 coaxial with the rotating seat 102. The basin frame positioning assembly 5 positions and clamps the basin frame 108, so that the basin frame 108 is coaxial with the rotating seat 102. The telescopic drive assembly 6 drives the telescopic block 104 to move downward, and the telescopic block 104 drives the four L-shaped positioning blocks 107 to move downward, and the long sides of the L-shaped positioning blocks 107 press downward. The washer 109 is fixed, so that the basin frame 108 and the washer 109 are in close contact (the annular line on the side wall of the washer 109 that contacts the basin frame 108 is the weld), the rotating component 2 drives the rotating seat 102 to rotate, the rotating seat 102 drives the basin frame 108 and the washer 109 to rotate, and the laser welding component 4 welds the rotating weld. In the present invention, by positioning and clamping the center position of the basin frame 108 and the washer 109, and applying pressure to the washer 109 to the basin frame 108, the weld can move smoothly when the basin frame 108 and the washer 109 rotate, thereby improving the welding effect of the basin frame 108 and the washer 109, and using laser welding to improve the connection sealing of the basin frame 108 and the washer 109 to prevent moisture intrusion. Using laser welding can eliminate fasteners, reduce the weight of the speaker, and have lower welding interface damping and reduced energy loss.

[0049] like Figure 1 and Figure 3 As shown, as a preferred embodiment of the present invention, the rotating assembly 2 includes an outer gear ring 201 fixed on the side wall of the rotating seat 102, and a motor 203 fixed at the bottom of the work table 101, and the telescopic end of the motor 203 passes through the work table 101 and is fixed with a gear 202, which is engaged with the outer gear ring 201.

[0050] In the embodiment of the present invention, the motor 1 203 drives the gear 202 to rotate, the gear 202 drives the outer gear ring 201 to rotate, and the outer gear ring 201 drives the rotating base 102 to rotate.

[0051] like Figure 4 、 Figure 5 and Figure 6As shown, as a preferred embodiment of the present invention, the synchronous control mechanism 3 includes four piston chambers 301 horizontally arranged in the telescopic block 104, and the four piston chambers 301 are radially arranged. A piston 302 is slidably connected in each of the four piston chambers 301, and a connecting shaft 303 is fixed to one end of the piston 302. The connecting shaft 303 passes through one end of the piston chamber 301 and is connected to the L-shaped positioning block 107. A tension spring 304 is sleeved on the connecting shaft 303, and the two ends of the tension spring 304 are respectively connected to the L-shaped positioning block 107 and the inner wall of the horizontal guide groove 106. A connecting chamber 305 is vertically arranged in the telescopic block 104, and the connecting chamber 305 is communicated with the other end of the piston chamber 301. 5 is slidably connected with a sliding tube 306, and a rubber ring can be installed on the side wall of the upper part of the sliding tube 306 to improve the sealing of the connecting cavity 305 and the sliding tube 306. A rotating air pipe joint 307 is fixed to the bottom of the work table 101, one end of the rotating air pipe joint 307 is connected to an external air source, which can be an air compressor, and the other end of the rotating air pipe joint 307 is connected to the sliding tube 306. A synchronous disk 308 is rotatably connected above the L-shaped positioning block 107 in the telescopic block 104, and four inclined long holes 309 are evenly arranged on the synchronous disk 308. A transmission shaft 310 is fixed to the top of the four L-shaped positioning blocks 107, and the four transmission shafts 310 are slidably connected to the four long holes 309 respectively.

[0052] In the embodiment of the present invention, in the initial state, the tension spring 304 contracts, and the tension spring 304 pulls the L-shaped positioning block 107 to be located in the horizontal guide groove 106. When the washer 109 is positioned, the external air source supplies air to the rotating air pipe joint 307, and the rotating air pipe joint 307 supplies air to the piston chamber 1 301 through the sliding tube 306 and the connecting chamber 305. The air pressure at one end of the piston 1 302 increases, and the high pressure overcomes the elastic force of the tension spring 304 and drives the piston 1 302 to move. The piston 1 302 is connected to the Shaft 1 303 drives the L-shaped positioning block 107 to move, and the L-shaped positioning block 107 extends from the side wall of the telescopic block 104. The short side wall of the telescopic block 104 pushes the inner wall of the washer 109. Through the setting of the synchronous disk 308, the long hole 1 309 and the transmission shaft 1 310, when the synchronous disk 308 rotates, the synchronous disk 308 controls the synchronous extension and retraction of the four L-shaped positioning blocks 107 through the long hole 1 309 and the transmission shaft 1 310, and the four synchronously moving L-shaped positioning blocks 107 position the washer 109.

[0053] like Figure 4 and Figure 5As shown, as a preferred embodiment of the present invention, the telescopic drive assembly 6 includes an annular cavity 1601 arranged in the rotating seat 102, and an annular cavity 2 602 arranged on the top of the work table 101, the annular cavity 1 601 and the annular cavity 2 602 are connected, and an air pipe joint 603 connected to the annular cavity 2 602 is fixed at the bottom of the work table 101, and the air pipe joint 603 is connected to the air source device, and the air source device can be an air compressor. An L-shaped pipeline 604 is arranged in the cylindrical protrusion 103, one end of the L-shaped pipeline 604 is connected to the annular cavity 1 601, and the other end of the L-shaped pipeline 604 is connected to the upper part of the vertical guide groove 105, and a spring 605 is installed at the bottom of the telescopic block 104, and the spring 605 is arranged in the vertical guide groove 105.

[0054] In this embodiment of the present invention, a protruding piston portion is formed at the bottom of the telescopic block 104. The telescopic block 104 is slidably connected to the vertical guide groove 105 through the bottom piston portion. A sealing ring can be installed at the position where the cylindrical protrusion 103 contacts the upper part of the telescopic block 104 to ensure the sealing of the upper part of the vertical guide groove 105.

[0055] In the initial state, the spring 605 pushes the telescopic block 104 upward, and the telescopic block 104 is located at the upper part of the vertical guide groove 105. The air source device supplies air to the air pipe joint 603, and the air pipe joint 603 supplies air to the upper part of the vertical guide groove 105 through the annular cavity 2 602, the annular cavity 1 601 and the L-shaped pipeline 604. The pressure in the upper part of the vertical guide groove 105 increases, and the high pressure in the vertical guide groove 105 overcomes the elastic force of the spring 605 and drives the telescopic block 104 to move downward.

[0056] like Figure 2 、 Figure 3 、 Figure 4 and Figure 7As shown, as a preferred embodiment of the present invention, the basin frame positioning assembly 5 includes four horizontal guide grooves 2 501 evenly arranged in an annular manner on the top of the rotating seat 102, and the four horizontal guide grooves 2 501 are all slidably connected with a guide block 1 502, a positioning shaft 503 is fixed on the top of the guide block 1 502, and a transmission shaft 2 506 is fixed on the bottom of the guide block 1 502. A synchronous ring 504 is rotatably connected below the guide block 1 502 in the rotating seat 102, and four inclined long holes 2 505 are evenly arranged on the synchronous ring 504. The four transmission shafts 2 506 are respectively slidably connected in the four long holes 2 505, and the rotating seat 102 A transmission assembly 7 is provided inside, and the transmission assembly 7 drives the guide block 1 502 to move through the telescopic drive assembly 6; the transmission assembly 7 includes a piston chamber 2 701 arranged horizontally in the rotating seat 102, and a piston 2 702 is slidably connected in the piston chamber 2 701, and a connecting shaft 2 703 is fixed to one end of the piston 2 702, and the connecting shaft 2 703 passes through one end of the piston chamber 2 701 and is connected to one end of the guide block 1 502, and the other end of the piston chamber 2 701 is communicated with the annular cavity 1 601, and the other end of the guide block 1 502 is connected to a compression spring 704, and the end of the compression spring 704 is fixed in the horizontal guide groove 2 501.

[0057] In the embodiment of the present invention, in the initial state, the compression spring 704 is extended, the four guide blocks 502 are in a contracted state, and the four positioning shafts 503 are close to each other. When the basin frame 108 is positioned, the air source device supplies air to the air pipe joint 603, and the air pipe joint 603 supplies air to the piston chamber 2 701 through the annular cavity 2 602 and the annular cavity 1 601. The pressure at one end of the piston 2 702 increases, and the high pressure overcomes the elastic force of the compression spring 704 and drives the piston 2 702 to move. The piston 2 702 passes The connecting shaft 2 703 drives the guide block 1 502 to move, and the guide block 1 502 drives the positioning shaft 503 and the transmission shaft 2 506 to move. Through the setting of the synchronous ring 504, the long hole 2 505 and the transmission shaft 2 506, the rotating synchronous ring 504, in cooperation with the long hole 2 505 and the transmission shaft 2 506, can make the four guide blocks 1 502 move synchronously, and then make the four positioning shafts 503 move synchronously in the opposite direction. The four positioning shafts 503 support and position the inner wall of the basin frame 108.

[0058] like Figure 1 、 Figure 3 and Figure 8As shown, as a preferred embodiment of the present invention, the laser welding assembly 4 includes a bracket 8 rotatably connected to the top of the work table 101, and a motor 3 404 fixed to the bottom of the work table 101, the rotating end of the motor 3 404 passes through the work table 101 and is connected to the bracket 8, a concave mounting block 401 is fixed on the bracket 8, a laser welding head 402 is rotatably connected to the concave mounting block 401, the laser welding head 402 is connected to the laser welding device, a motor 2 403 is fixed on the side wall of the concave mounting block 401, the rotating end of the motor 2 403 is connected to the rotation axis of the laser welding head 402, the bracket 8 includes a work table 101, and a rotating end of the motor 2 403 is connected to the rotation axis of the laser welding head 402. The rotating sleeve 801 is rotatably connected to the top of the table 101, and the rotating end of the motor three 404 passes through the work table 101 and is connected to the rotating sleeve 801. The top of the rotating sleeve 801 is slidably connected to the telescopic rod 802, and a stop bolt 803 is threadedly connected to the side wall of the rotating sleeve 801. The end of the stop bolt 803 abuts the side wall of the telescopic rod 802. The upper part of the telescopic rod 802 is horizontally slidably connected to the horizontal slide bar 804, and a stop bolt 2 805 is threadedly connected to the side wall of the telescopic rod 802. The end of the stop bolt 2 805 abuts the side wall of the horizontal slide bar 804, and the concave mounting block 401 is fixed on the horizontal slide bar 804.

[0059] In the embodiment of the present invention, the first stop bolt 803 is loosened to adjust the total length of the rotating sleeve 801 and the telescopic rod 802, and then the first stop bolt 803 is tightened. The second stop bolt 805 is loosened to adjust the extension length of the horizontal slide rod 804, and then the second stop bolt 805 is tightened to adjust the height and horizontal extension distance of the bracket 8.

[0060] Motor 2 403 drives the laser welding head 402 to rotate and adjust the welding angle of the laser welding head 402. Motor 3 404 drives the bracket 8 to rotate, and the bracket 8 drives the laser welding head 402 to be located above the basin frame 108. When replacing the basin frame 108 and the washer 109, motor 3 404 drives the bracket 8 to reverse, and the bracket 8 drives the laser welding head 402 away from the top of the basin frame 108, thereby facilitating the replacement of the basin frame 108 and the washer 109.

[0061] Example 2

[0062] Due to the production tolerance and positioning error of the washer 109, when the rotating seat 102 drives the basin frame 108 and the washer 109 to rotate, the side wall of the washer 109 has radial runout, and the distance between the actual welding position and the laser welding head 402 fluctuates. Figure 9 As shown, the welding position of the laser welding head 402 deviates from the actual welding position, which affects the welding effect of the basin frame 108 and the washer 109.

[0063] like Figure 1 、 Figure 8 and Figure 9 As shown, a laser welding device for processing a marine loudspeaker provided by one embodiment of the present invention further includes a welding state real-time control system for adjusting the welding angle and focal length of the laser welding head 402. The welding state real-time control system includes:

[0064] The data acquisition module obtains the horizontal distance between the rotation center of the laser welding head 402 and the side wall of the washer 109, the current welding angle of the laser welding head, and the vertical height between the rotation center of the laser welding head 402 and the weld;

[0065] The welding angle analysis module constructs a welding angle model based on the horizontal distance between the rotation center of the laser welding head 402 and the side wall of the washer 109 and the vertical height between the rotation center of the laser welding head 402 and the weld and outputs the target welding angle;

[0066] The welding angle model is:

[0067]

[0068] in, is the target welding angle, is the vertical height between the rotation center of the laser welding head 402 and the weld, is the horizontal distance between the rotation center of the laser welding head 402 and the side wall of the washer 109;

[0069] The welding angle processing module performs difference processing on the target welding angle and the current welding angle of the laser welding head 402 and obtains the angle adjustment amount information;

[0070] Specifically:

[0071] in, is the angle adjustment amount, is the target welding angle, is the welding angle of the current laser welding head 402;

[0072] The welding focal length analysis module constructs a focal length output model and outputs focal length adjustment information based on the current welding angle of the laser welding head 402, the target welding angle, and the vertical height between the rotation center of the laser welding head 402 and the weld;

[0073] The focal length output model is:

[0074]

[0075] in, is the focal length adjustment amount, is the target welding angle, is the welding angle of the current laser welding head 402;

[0076] The welding control module adjusts the laser welding head 402 to the target welding angle and target welding focal length according to the angle adjustment amount information and the focal length adjustment amount information. When the angle adjustment amount information is a positive number, the motor 2 403 drives the laser welding head 402 to rotate counterclockwise. When the angle adjustment amount information is a positive number, the motor 2 403 drives the laser welding head 402 to rotate clockwise. When the angle adjustment amount information is a negative number, the motor 2 403 drives the laser welding head 402 to rotate counterclockwise. A positive number increases the focal length. When it is a negative number, the focal length is reduced, thereby achieving real-time adjustment of the welding angle and the focal length of the laser welding head 402, thereby improving the welding effect of the basin frame 108 and the washer 109.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser welding device for processing marine loudspeakers, comprising a work surface and a rotating seat rotatably connected to the upper end of the work surface, wherein a rotating assembly for driving the rotating seat to rotate is provided on the work surface, characterized in that: Also includes: A cylindrical protrusion is provided at the axis center on the upper end of the rotating seat, a vertical guide groove 1 is vertically provided on the top of the cylindrical protrusion, a telescopic block is slidably connected in the vertical guide groove 1, and a telescopic drive assembly for driving the telescopic block to move up and down is provided on the cylindrical protrusion; Four horizontal guide grooves are evenly arranged on the side wall of the telescopic block, and L-shaped positioning blocks are slidably connected in the horizontal guide grooves. A synchronous control mechanism is provided in the telescopic block, and the synchronous control mechanism is used to drive the four L-shaped positioning blocks to move synchronously in opposite directions. A basin rack positioning assembly for positioning and clamping the basin rack is provided on the rotating seat, and a laser welding assembly for welding the weld seam is provided on the work surface; The telescopic drive assembly includes an annular cavity 1 provided in the rotating seat, and an annular cavity 2 provided on the top of the work surface. The annular cavity 1 is connected to the annular cavity 2. A trachea joint connected to the annular cavity 2 is fixed to the bottom of the work surface. The trachea joint is connected to the air source device. An L-shaped pipeline is provided in the cylindrical protrusion. One end of the L-shaped pipeline is connected to the annular cavity 1, and the other end of the L-shaped pipeline is connected to the upper part of the vertical guide groove 1. A spring is installed at the bottom of the telescopic block, and the spring is arranged in the vertical guide groove 1. The basin frame positioning assembly includes four horizontal guide grooves 2 evenly arranged in an annular manner on the top of the rotating seat, and a guide block 1 is slidably connected in each of the four horizontal guide grooves 2. A positioning shaft is fixed on the top of the guide block 1, and a transmission shaft 2 is fixed on the bottom of the guide block 1. A synchronous ring is rotatably connected below the guide block 1 in the rotating seat, and four inclined long holes 2 are evenly arranged on the synchronous ring. The four transmission shafts 2 are respectively slidably connected in the four long holes 2. A transmission assembly is provided in the rotating seat, and the transmission assembly drives the guide block 1 to move through the telescopic drive assembly. The transmission assembly includes a piston chamber 2 arranged horizontally in the rotating seat, a piston 2 is slidably connected in the piston chamber 2, a connecting shaft 2 is fixed to one end of the piston 2, the connecting shaft 2 passes through one end of the piston chamber 2 and is connected to one end of the guide block 1, the other end of the piston chamber 2 is connected to the annular cavity 1, the other end of the guide block 1 is connected to a compression spring, and the end of the compression spring is fixed in the horizontal guide groove 2.

2. The laser welding equipment for processing marine loudspeakers according to claim 1, characterized in that: The rotating assembly includes an outer gear ring fixed on the side wall of the rotating seat and a motor 1 fixed at the bottom of the work table. The telescopic end of the motor 1 passes through the work table and is fixed with a gear, which is engaged with the outer gear ring.

3. The laser welding equipment for processing marine loudspeakers according to claim 1, characterized in that: The synchronous control mechanism includes four piston chambers one horizontally arranged in the telescopic block, and the four piston chambers one are radially arranged. A piston one is slidably connected in each of the four piston chambers one, and a connecting shaft one is fixed at one end of the piston one. The connecting shaft one passes through one end of the piston chamber one and is connected to the L-shaped positioning block. A tension spring is provided on the connecting shaft one, and the two ends of the tension spring are respectively connected to the L-shaped positioning block and the inner wall of the horizontal guide groove one. A connecting chamber is vertically arranged in the telescopic block, and the connecting chamber is connected to the other end of the piston chamber one. A sliding tube is slidably connected in the connecting chamber, and a rotating air pipe joint is fixed at the bottom of the workbench, one end of the rotating air pipe joint is connected to an external air source, and the other end of the rotating air pipe joint is connected to the sliding tube. A synchronous disk is rotatably connected above the L-shaped positioning block in the telescopic block, and four inclined long holes one are evenly arranged on the synchronous disk. A transmission shaft one is fixed on the top of the four L-shaped positioning blocks, and the four transmission shafts one are respectively slidably connected in the four long holes one.

4. The laser welding equipment for processing marine loudspeakers according to claim 1, characterized in that: The laser welding assembly includes a bracket rotatably connected to the top of the work table, and motor three fixed to the bottom of the work table. The rotating end of motor three passes through the work table and is connected to the bracket. A concave mounting block is fixed on the bracket. A laser welding head is rotatably connected to the concave mounting block. The laser welding head is connected to the laser welding device. Motor two is fixed on the side wall of the concave mounting block. The rotating end of motor two is connected to the rotation axis of the laser welding head.

5. The laser welding equipment for processing marine loudspeakers according to claim 4, characterized in that: It also includes a real-time control system for welding status, which is used to adjust the welding angle and focal length of the laser welding head. The real-time control system for welding status includes: The data acquisition module obtains the horizontal distance between the rotation center of the laser welding head and the side wall of the washer, the current welding angle of the laser welding head, and the vertical height between the rotation center of the laser welding head and the weld; The welding angle analysis module builds a welding angle model based on the horizontal distance between the laser welding head rotation center and the washer side wall and the vertical height between the laser welding head rotation center and the weld, and outputs the target welding angle; The welding angle processing module performs difference processing on the target welding angle and the current laser welding head welding angle and obtains the angle adjustment amount information; The welding focal length analysis module builds a focal length output model and outputs focal length adjustment information based on the current laser welding head welding angle, target welding angle, and the vertical height between the laser welding head rotation center and the weld; The welding control module adjusts the laser welding head to the target welding angle and target welding focal length according to the angle adjustment amount information and the focal length adjustment amount information.

6. The laser welding equipment for processing marine loudspeakers according to claim 5, characterized in that: The welding angle model is: in, is the target welding angle, is the vertical height between the rotation center of the laser welding head and the weld, It is the horizontal distance between the rotation center of the laser welding head and the side wall of the washer.

7. The laser welding equipment for processing marine loudspeakers according to claim 6, characterized in that: The focal length output model is: in, is the focal length adjustment amount, is the target welding angle, It is the welding angle of the current laser welding head.

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