Intelligent welding equipment for optical cable cross-connecting box and laser welding backing

Abstract

The invention relates to the field of laser welding, in particular to intelligent welding equipment for an optical cable cross-connecting box and a laser welding backing, the laser welding backing comprises a supporting part, an adjusting part is arranged on the supporting part, and a jacking mechanism used for controlling the adjusting part to stretch out and draw back is arranged on the supporting part; two side plates are arranged on the supporting part, clamping plates used for fixing workpieces are arranged on the side plates, and buffering assemblies are arranged on the clamping plates; a transmission mechanism is arranged on the side plate, when the buffering assembly is pressed and contracts, the buffering assembly transmits pressure to the jacking mechanism through the transmission mechanism, and the jacking mechanism controls the adjusting part to stretch out. The function that the adjusting part is controlled to automatically stretch out through the pressure borne by the buffering assembly is achieved. Abnormal conditions caused by response delay of the sensor are avoided, and the problem of angle adjustment errors caused by response delay of the sensor in the welding process is solved.

Description

Technical Field

[0001] The present invention relates to the field of laser welding, in particular to intelligent welding equipment and laser welding pads for optical cable junction boxes. Background Art

[0002] Optical cable junction boxes are key equipment in fiber-optic communication networks, primarily used for the splicing, distribution, and management of optical fibers. During the manufacturing process, the box frame and supporting structure may be constructed of thicker metal plates (typically ≥3mm) to ensure mechanical strength (such as resistance to wind pressure and impact), requiring reinforcement through welding. Laser welding of thick plates can lead to heat accumulation, resulting in significant post-weld deformation and the potential for cracking and other undesirable conditions.

[0003] To this end, the Chinese patent with authorization announcement number CN110102895B discloses an intelligent real-time temperature and shape control device and method for thick plate laser welding, which solves the difficulty of large post-weld deformation in thick plate laser welding. The method of intelligently setting the anti-deformation angle is used to effectively control the post-weld deformation; coolant is used to control the temperature state of the thick plate weldment during welding. At the same time, the coolant can also accelerate the interlayer cooling process, reducing interlayer heat accumulation and improving the quality of the weldment while also reducing welding time and greatly improving welding efficiency.

[0004] To prevent deformation during welding, existing welding equipment requires real-time monitoring of the vertical displacement of the plate using a displacement sensor, thereby calculating the plate's deformation trend. The plate's angle is then adjusted based on this deformation trend for dynamic compensation. Furthermore, a lift motor controls the raising and lowering of a pad to fill gaps in the weld pool and prevent collapse. However, during operation, sensor signal transmission is susceptible to electromagnetic interference (e.g., from the welding arc), resulting in increased errors. Furthermore, the lift motor's long acceleration and deceleration times can cause response lag and lead to angle adjustment errors. Summary of the Invention

[0005] To address the above problems, intelligent welding equipment and laser welding pads for optical cable junction boxes are provided. Through the support part, lifting mechanism, side plate and transmission mechanism, the problem of angle adjustment error caused by the response lag of the sensor during the welding process is solved.

[0006] In order to solve the problems of the existing technology, the present invention provides a laser welding pad, including a supporting part, an adjusting part is provided on the supporting part, and a lifting mechanism for controlling the extension and retraction of the adjusting part is provided on the supporting part; two side plates are provided on the supporting part, and clamps for fixing workpieces are provided on the side plates, and a buffer assembly is provided on the clamps; a transmission mechanism is provided on the side plates, and when the buffer assembly is compressed and contracts, the buffer assembly transmits the pressure to the lifting mechanism through the transmission mechanism, and the lifting mechanism controls the extension of the adjusting part.

[0007] Preferably, the buffer assembly includes a buffer plate and a first elastic member; the buffer plate is arranged on the splint, and the buffer plate is connected to the transmission mechanism; an elastic pad is provided at the bottom of the splint; the first elastic member is arranged on the splint, and the first elastic member is connected to the buffer plate; an adjustment assembly for adjusting the position of the splint is provided on the side plate.

[0008] Preferably, the transmission mechanism includes a trigger assembly and a transmission assembly; the splint is connected to the buffer plate through the trigger assembly; and the trigger assembly is transmission-connected to the lifting mechanism through the transmission assembly.

[0009] Preferably, the lifting mechanism includes a linear drive, a limiting assembly and a control assembly; the linear drive and the limiting assembly are both arranged on the supporting part, and the linear drive applies a pre-tightening force to the adjusting part; the limiting assembly is used to limit the movement of the adjusting part; the control assembly is used to adjust the limiting range of the limiting assembly on the adjusting part, and the control assembly is connected to the transmission mechanism.

[0010] Preferably, the trigger assembly includes a first extension rod, a second extension rod and a first transmission rod; the first extension rod and the second extension rod are respectively connected to the splint and the buffer plate; the second extension rod is provided with a first fixed shaft; the first transmission rod is rotatably arranged on the first extension rod, and the first transmission rod is provided with a first straight groove that slides with the first fixed shaft, and the first transmission rod is transmission-connected to the transmission assembly.

[0011] Preferably, the transmission assembly includes a second transmission rod, a first movable rod and a movable shaft; the first transmission rod is provided with a connecting ring, and the second transmission rod is connected to the first transmission rod through the connecting ring; the first movable rod is slidably mounted on the splint, the first movable rod is provided with a second elastic member connected to the splint, and the first movable rod is transmission-connected to the control assembly; the second extension rod is provided with a second straight groove extending in the horizontal direction, and the first movable rod is provided with a third straight groove extending in the vertical direction; the movable shaft slides in cooperation with the second straight groove and the third straight groove.

[0012] Preferably, the limiting assembly includes a connecting block and a bracket; the connecting block is arranged on the adjusting part, and a second fixed shaft is provided on the connecting block; the bracket is arranged on the supporting part, and a limiting block is slidably installed on the bracket, and the control assembly is used to control the limiting block to slide along the bracket.

[0013] Preferably, the control component includes a first screw, a first worm wheel, a first worm, a rotating gear and a rack; the first screw is rotatably set on the bracket, and the first screw is threadedly connected to the limit block; the first worm wheel is sleeved on the first screw; the first worm is rotatably set on the support part, and the first worm is meshed with the first worm wheel; the rotating gear is sleeved on the first worm, and the rack is slidably installed on the support part, the rotating gear is meshed with the rack, and the rack is transmission-connected to the transmission mechanism.

[0014] Preferably, the adjustment assembly includes a support, a first guide rod, a second screw and a rotating handle; the support is arranged on the side panel; the first guide rod is installed on the support, and the splint slides with the first guide rod; the second screw is rotatably arranged on the support, and the splint is threadedly connected to the second screw; the rotating handle is rotatably arranged on the splint, and the rotating handle is used to drive the second screw to rotate.

[0015] A laser welding pad includes a welding robot for welding workpieces.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the function of automatically extending the adjustment part by controlling the pressure exerted on the buffer assembly through the support part, the lifting mechanism, the side plate and the transmission mechanism. When the workpiece is deformed due to heat accumulation during the welding process, the angle of the workpiece is adjusted by mechanical transmission, and the dynamic compensation work is completed without using a sensor. Abnormal conditions caused by delayed sensor response are avoided, and the problem of angle adjustment error caused by delayed sensor response during the welding process is solved. During the welding process, if the workpiece shrinks and deforms due to heat accumulation, it will generate a contraction force due to local expansion, further compressing the buffer assembly. At this time, the buffer assembly transmits the force to the lifting mechanism through the transmission mechanism, and the lifting mechanism controls the extension of the adjustment part, pushes the workpiece through the adjustment part, and balances the deformation of the workpiece. Reduce the deformation of the workpiece during the welding process and improve the welding quality of the workpiece.

[0017] 2. The present invention utilizes an elastic pad, a buffer plate, and a first elastic member to sense workpiece contraction during welding. This force is then transmitted to the lifting mechanism via a transmission mechanism, controlling the automatic expansion and contraction of the adjustment unit. The elastic pad prevents damage to the clamping plate caused by residual stress in the workpiece, allowing for contraction. Furthermore, the lifting mechanism and the adjustment unit cooperate to propel the workpiece, providing dynamic compensation for deformation.

[0018] 3. The present invention utilizes a trigger assembly and a transmission assembly to transmit force to the lifting mechanism. During welding, when the workpiece deforms due to heat accumulation, the buffer plate is subjected to pressure, causing the elastic pad to contract. At this point, the trigger assembly transmits the force to the lifting mechanism via the transmission assembly, which in turn controls the extension of the adjustment unit. The adjustment unit pushes the two workpieces, balancing their inclination angles and controlling them within a specified range, thereby ensuring weld quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the intelligent welding equipment for optical cable junction box of the present invention.

[0020] Figure 2It is a three-dimensional schematic diagram of the laser welding pad of the present invention.

[0021] Figure 3 It is a three-dimensional schematic diagram of the support portion, the adjustment portion and the lifting mechanism of the laser welding pad of the present invention.

[0022] Figure 4 It is a stereoscopic schematic diagram of the first perspective of the clamping plate, buffer component, adjustment component and trigger component of the laser welding pad of the present invention.

[0023] Figure 5 It is a schematic exploded perspective view of the support portion and the adjustment portion of the laser welding pad of the present invention.

[0024] Figure 6 It is a stereoscopic schematic diagram of the second viewing angle of the clamping plate, buffer assembly, adjustment assembly and trigger assembly of the laser welding pad of the present invention.

[0025] Figure 7 The present invention Figure 6 A local enlarged schematic diagram of point A in the middle.

[0026] Figure 8 It is a three-dimensional exploded schematic diagram of the trigger assembly and the transmission assembly of the laser welding pad of the present invention.

[0027] Figure 9 It is a three-dimensional schematic diagram of the lifting mechanism of the laser welding pad of the present invention.

[0028] Figure 10 It is a three-dimensional schematic diagram of the clamping plate, buffer component and adjustment component of the laser welding pad of the present invention.

[0029] The numbers in the figure are: 1. support part; 11. adjustment part; 2. lifting mechanism; 21. linear drive; 22. limiting assembly; 221. connecting block; 2211. second fixed shaft; 222. bracket; 2221. limit block; 23. control assembly; 231. first screw; 232. first worm gear; 233. first worm; 234. rotating gear; 235. rack; 3. side plate; 31. clamping plate; 311. elastic pad; 32. buffer assembly; 321. buffer plate; 322. first elastic member; 33. adjusting assembly; 331. support; 332. first guide rod; 333. second screw; 334. rotating handle; 335. Second worm gear; 336. Second worm; 4. Transmission mechanism; 41. Trigger assembly; 411. First extension rod; 412. Second extension rod; 4121. First fixed shaft; 4122. Second straight slot; 413. First transmission rod; 4131. First straight slot; 4132. Connecting ring; 42. Transmission assembly; 421. Second transmission rod; 422. First movable rod; 4221. Third straight slot; 4222. Second elastic member; 4222. Third fixed shaft; 423. Movable shaft; 424. Second movable rod; 4241. Fourth straight slot; 425. Second guide rod; 5. Base frame; 6. Welding robot; 7. Workpiece. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 2-Figure 4 : A laser welding pad includes a support part 1, an adjusting part 11 is provided on the support part 1, and a lifting mechanism 2 for controlling the extension and retraction of the adjusting part 11 is provided on the support part 1; two side plates 3 are provided on the support part 1, and a clamping plate 31 for fixing a workpiece 7 is provided on the side plate 3, and a buffer assembly 32 is provided on the clamping plate 31; a transmission mechanism 4 is provided on the side plate 3, and when the buffer assembly 32 is compressed and contracts, the buffer assembly 32 transmits the pressure to the lifting mechanism 2 through the transmission mechanism 4, and the lifting mechanism 2 controls the adjusting part 11 to extend.

[0032] The present invention utilizes the support portion 1, lifting mechanism 2, side panels 3, and transmission mechanism 4 to achieve the automatic extension of the adjustment portion 11 by utilizing the pressure exerted on the buffer assembly 32. When the workpiece 7 deforms due to heat accumulation during welding, the angle of the workpiece 7 is adjusted mechanically, achieving dynamic compensation without the use of sensors. This avoids abnormalities caused by delayed sensor response and resolves the problem of angle adjustment errors caused by sensor response lag during welding. The side panels 3 are movably connected to the support portion 1, and a drive element for adjusting the inclination of the side panels 3 is provided on the base frame 5 that holds the support portion 1. Adjusting the inclination of the side panels 3 and presetting an appropriate anti-deformation angle using the drive element before welding is conventional and is not described in detail in this invention. The drive element is not shown in the figures. In operation, the operator first places the two workpieces 7 to be welded onto the side panels 3. The clamping plates 31 on the side panels 3 then secure the workpieces 7. The buffer assembly 32 retracts, controlling the clamping plates 31 to apply appropriate pressure to the workpieces 7. The inclination of the side panels 3 is then adjusted based on the structure of the workpieces 7 and the welding conditions, presetting an appropriate anti-deformation angle. Then the laser welding work is carried out. During the welding process, if the workpiece 7 shrinks and deforms due to heat accumulation, it will generate a contraction force due to local expansion, further compressing the buffer component 32. At this time, the buffer component 32 transmits the force to the lifting mechanism 2 through the transmission mechanism 4. The lifting mechanism 2 controls the adjustment part 11 to extend, and pushes the workpiece 7 through the adjustment part 11 to balance the deformation of the workpiece 7. Reduce the deformation of the workpiece 7 during the welding process and improve the welding quality of the workpiece 7. The buffer component 32 is provided on the clamping plate 31 used to fix the two workpieces 7. The setting of the buffer component 32 can balance the pressure on the two workpieces 7. And when the two workpieces 7 are connected to each other during the welding process and local deformation occurs due to heat accumulation, the two buffer components 32 will be compressed due to the shrinkage deformation of the workpiece 7, and then automatically balance the pressure applied to the workpiece 7 by the two clamping plates 31.

[0033] Reference Figure 2 and Figure 4 : The buffer assembly 32 includes a buffer plate 321 and a first elastic member 322; the buffer plate 321 is arranged on the splint 31, and the buffer plate 321 is transmission-connected to the transmission mechanism 4; an elastic pad 311 is provided at the bottom of the splint 31; the first elastic member 322 is arranged on the splint 31, and the first elastic member 322 is connected to the buffer plate 321; an adjustment assembly 33 for adjusting the position of the splint 31 is provided on the side panel 3.

[0034] The present invention realizes the function of sensing the contraction of the workpiece 7 during the welding process through the elastic pad 311, the buffer plate 321 and the first elastic member 322, and then transmits the force to the lifting mechanism 2 through the transmission mechanism 4 to control the automatic expansion and contraction effect of the adjustment part 11. The elastic pad 311 is located between the clamp 31 and the buffer plate 321. By setting the elastic pad 311, the clamp 31 can be prevented from being damaged by the residual stress of the workpiece 7, the shrinkage amount is reserved, and the workpiece 7 can be pushed through the cooperation of the lifting mechanism 2 and the adjustment part 11 to provide dynamic compensation for the deformation of the workpiece 7. Two first elastic members 322 are provided on each clamp 31. The first elastic member 322 is preferably a gas spring, and the piston rod of the gas spring is hinged to the buffer plate 321. When fixing the workpiece 7, the clamp is controlled by the adjustment component 33 to move toward the side plate 3, and the clamp drives the buffer plate 321 to move. When the buffer plate 321 contacts the workpiece 7, pressure is applied to the workpiece 7. The first elastic member 322 contracts under pressure until the elastic pad 311 contacts the buffer plate 321, securing the workpiece 7. When the workpiece 7 contracts due to heat accumulation during welding, the workpiece 7 further pushes the buffer plate 321, and its inclination angle increases. At this time, the pressure on the side of the buffer plate 321 away from the support portion 1 increases, causing the inclination angle of the buffer plate 321 to also increase. The elastic pad 311 further contracts under pressure, and during movement, the buffer plate 321 transmits the pressure it receives to the lifting mechanism 2 via the transmission mechanism 4. The lifting mechanism 2 controls the extension of the adjustment portion 11, which pushes the workpiece 7 through the adjustment portion 11, balancing the inclination angle of the workpiece 7, performing dynamic compensation, and improving the welding quality of the workpiece 7.

[0035] Reference Figure 2 and Figure 4 : The transmission mechanism 4 includes a trigger assembly 41 and a transmission assembly 42; the splint 31 is connected to the buffer plate 321 via the trigger assembly 41; the trigger assembly 41 is connected to the jacking mechanism 2 via the transmission assembly 42.

[0036] The present invention achieves the function of transmitting the applied force to the lifting mechanism 2 through the trigger assembly 41 and transmission assembly 42. During the welding process, when the workpiece 7 deforms due to heat accumulation, the buffer plate 321 is subjected to pressure, and the elastic pad 311 contracts under this pressure. At this time, the trigger assembly 41 transmits the applied force to the lifting mechanism 2 through the transmission assembly 42, which in turn controls the extension of the adjustment portion 11. The adjustment portion 11 pushes the two workpieces 7, balancing their inclination angles and controlling them within a specified range, thereby ensuring the welding quality of the workpieces 7.

[0037] Reference Figure 3 and Figure 5: The lifting mechanism 2 includes a linear drive 21, a limiting component 22 and a control component 23; the linear drive 21 and the limiting component 22 are both arranged on the support part 1, and the linear drive 21 applies a preload force to the adjusting part 11; the limiting component 22 is used to limit the movement of the adjusting part 11; the control component 23 is used to adjust the limiting range of the limiting component 22 on the adjusting part 11, and the control component 23 is connected to the transmission mechanism 4.

[0038] The present invention realizes the function of controlling the extension of the adjusting portion 11 through the linear drive 21, the limiting component 22 and the control component 23. The linear drive 21 is preferably a linear cylinder. In the working state, the operator first fixes the workpiece 7 through the clamp 31, and then applies a preload to the adjusting portion 11 through the linear drive 21, and at this time the limiting component 22 will limit the extension of the adjusting portion 11. During the welding process, when the workpiece 7 is deformed due to heat accumulation, the inclination angle of the buffer plate 321 increases under the action of pressure. In addition, the buffer plate 321 transmits the pressure to the control component 23 through the transmission mechanism 4, and the control component 23 adjusts the limiting position of the limiting component 22. At this time, the adjusting portion 11 extends to the new limiting position under the action of the preload applied by the linear drive 21, and then applies pressure to the workpiece 7 through the adjusting portion 11 for dynamic compensation.

[0039] Reference Figure 4 、 Figure 6-Figure 8 : The trigger assembly 41 includes a first extension rod 411, a second extension rod 412 and a first transmission rod 413; the first extension rod 411 and the second extension rod 412 are respectively connected to the splint 31 and the buffer plate 321; the second extension rod 412 is provided with a first fixed shaft 4121; the first transmission rod 413 is rotatably set on the first extension rod 411, and the first transmission rod 413 is provided with a first straight groove 4131 that slides with the first fixed shaft 4121, and the first transmission rod 413 is transmission-connected to the transmission assembly 42.

[0040] The present invention transmits pressure to the lifting mechanism 2 through the first extension rod 411, the second extension rod 412, and the first transmission rod 413 when the buffer plate 321 further contracts after contacting the elastic pad 311. When clamping the workpiece 7, the first elastic member 322 contracts under the action of pressure, causing the distance between the buffer plate 321 and the clamping plate 31 to shorten. In order to prevent the buffer plate 321 from transmitting torque to the control component 23 through the transmission assembly 42 during this process, a trigger assembly 41 is provided. During the process of shortening the distance between the buffer plate 321 and the clamping plate 31, the first transmission rod 413 rotates around its hinge point with the first extension rod 411. When rotating, the first transmission rod 413 transmits torque to the control component 23 through the transmission assembly 42, and then adjusts the limiting range of the limiting component 22 through the control assembly 23. The adjustment portion 11 extends under the driving force provided by the linear actuator 21 to push the workpiece 7.

[0041] Reference Figure 4 、 Figure 6-Figure 8 : The transmission assembly 42 includes a second transmission rod 421, a first movable rod 422 and a movable shaft 423; the first transmission rod 413 is provided with a connecting ring 4132, and the second transmission rod 421 is connected to the first transmission rod 413 through the connecting ring 4132; the first movable rod 422 is slidably installed on the splint 31, and the first movable rod 422 is provided with a second elastic member 4222 connected to the splint 31, and the first movable rod 422 is transmission-connected to the control assembly 23; the second extension rod 412 is provided with a second straight groove 4122 extending in the horizontal direction, and the first movable rod 422 is provided with a third straight groove 4221 extending in the vertical direction; the movable shaft 423 slides with the second straight groove 4122 and the third straight groove 4221.

[0042] The present invention achieves the function of transmitting applied force to the control assembly 23 through the second transmission rod 421, the first movable rod 422, and the movable shaft 423. When the operator clamps the workpiece 7 using the clamping plate 31, the elastic pad 311 at the bottom of the clamping plate 31 contacts the buffer plate 321. At this time, the second transmission rod 421 connected to the first transmission rod 413 abuts the movable shaft 423. When the buffer plate 321 is pushed by the deformation of the workpiece 7, the first fixed shaft 4121 on the second extension rod 412 pushes the first transmission rod 413, which in turn rotates the second transmission rod 421 via the connecting ring 4132. The second transmission rod 421 then pushes the movable shaft 423, which pushes the wall of the third straight slot 4221, further moving the first movable rod 422. The second elastic member 4222 extends under the tensile force, and then transmits torque to the control assembly 23 through the first movable rod 422, performing the subsequent dynamic compensation action.

[0043] Reference Figure 3 and Figure 9 : The limiting component 22 includes a connecting block 221 and a bracket 222; the connecting block 221 is arranged on the adjusting part 11, and a second fixed shaft 2211 is provided on the connecting block 221; the bracket 222 is arranged on the supporting part 1, and a limiting block 2221 is slidably installed on the bracket 222, and the control component 23 is used to control the limiting block 2221 to slide along the bracket 222.

[0044] The present invention achieves the function of limiting the movement of the adjustment portion 11 through the connecting block 221 and the bracket 222. In the working state, the operator first fixes the workpiece 7 with the clamping plate 31, and then applies a preload force to the adjustment portion 11 through the linear drive 21. At this time, the limiting component 22 will limit the extension of the adjustment portion 11. During the welding process, when the workpiece 7 is deformed due to heat accumulation, the inclination angle of the buffer plate 321 increases under the action of pressure. In addition, the buffer plate 321 transmits torque through the trigger component 41 and the transmission component 42, causing the first movable rod 422 to move. The first movable rod 422 drives the control component 23, and the control component 23 adjusts the position of the limit block 2221, causing the limit block 2221 to move away from the support portion 1. Under the action of the preload force applied by the linear drive 21, the adjustment portion 11 always abuts against the limit block 2221. The adjustment portion 11 then extends, and then applies pressure to the workpiece 7 through the adjustment portion 11 to perform dynamic compensation.

[0045] Reference Figure 3 and Figure 9 : The control component 23 includes a first screw 231, a first worm wheel 232, a first worm 233, a rotating gear 234 and a rack 235; the first screw 231 is rotatably set on the bracket 222, and the first screw 231 is threadedly connected to the limit block 2221; the first worm wheel 232 is sleeved on the first screw 231; the first worm 233 is rotatably set on the support part 1, and the first worm 233 is meshed with the first worm wheel 232; the rotating gear 234 is sleeved on the first worm 233, and the rack 235 is slidably installed on the support part 1, the rotating gear 234 is meshed with the rack 235, and the rack 235 is transmission connected to the transmission mechanism 4.

[0046] The present invention utilizes the first screw 231, the first worm gear 232, the first worm 233, the rotating gear 234, and the rack 235 to control the movement of the stop block 2221. During welding, when the buffer plate 321 moves under the pressure of the workpiece 7, the first movable rod 422, under the transmission action of the trigger assembly 41 and the transmission assembly 42, pulls the rack 235 as it moves, and the rack 235 drives the rotating gear 234 meshed with it to rotate. The rotating gear 234 drives the first worm 233 to rotate, which in turn drives the first worm gear 232 meshed with it to rotate. The first worm gear 232 drives the first screw 231 to rotate, which in turn drives the stop block 2221 threadedly connected thereto to move, thereby adjusting the position of the stop block 2221.

[0047] Reference Figure 3 、 Figure 6 and Figure 10: The adjustment assembly 33 includes a support 331, a first guide rod 332, a second screw 333 and a rotating handle 334; the support 331 is set on the side panel 3; the first guide rod 332 is installed on the support 331, and the splint 31 slides with the first guide rod 332; the second screw 333 is rotatably set on the support 331, and the splint 31 is threadedly connected to the second screw 333; the rotating handle 334 is rotatably set on the splint 31, and the rotating handle 334 is used to drive the second screw 333 to rotate.

[0048] The present invention realizes the function of adjusting the position of the splint 31 through the support 331, the first guide rod 332, the second screw rod 333 and the rotating handle 334. The support 331 is provided with a second movable rod 424 and a second guide rod 425, and the second movable rod 424 and the second guide rod 425 are slidably matched. The second movable rod 424 is provided with a fourth straight groove 4241, and the first movable rod 422 is provided with a third fixed shaft 4222 that slidably matches the fourth straight groove 4241. The second movable rod 424 is connected to the rack 235. When the first movable rod 422 slides, it drives the third fixed shaft 4222 to move, and the second movable rod 424 is pulled by the third fixed shaft 4222, and the second movable rod 424 drives the rack 235 to move, and then the position of the limit block 2221 is adjusted by the control component 23, and the adjustment part 11 is extended under the push of the linear drive 21. A second worm gear 335 is rotatably mounted on the clamping plate 31 and slidably sleeved onto the second screw 333. A second worm 336 is rotatably mounted on the clamping plate 31 and meshes with the second worm gear 335. A rotating handle 334 sleeves onto the second worm 336. When clamping the workpiece 7, the operator rotates the rotating handle 334, which rotates the second worm 336. The second worm 336 then rotates the second worm gear 335 meshed with it, which in turn rotates the second worm gear 335, which in turn rotates the second screw 333. The rotation of the second screw 333 drives the clamping plate 31, which is threadedly connected thereto, to rise and fall. The clamping plate 31 then moves the buffer plate 321 to clamp the workpiece 7.

[0049] Reference Figure 1 : A laser welding pad includes a welding robot 6 for welding a workpiece 7.

[0050] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A laser welding pad, characterized in that: The device comprises a support portion (1), an adjustment portion (11) being provided on the support portion (1), and a lifting mechanism (2) for controlling the extension and retraction of the adjustment portion (11) being provided on the support portion (1); The support portion (1) is provided with two side plates (3), the side plates (3) are provided with clamping plates (31) for fixing the workpiece (7), and the clamping plates (31) are provided with a buffer assembly (32); A transmission mechanism (4) is provided on the side plate (3). When the buffer assembly (32) is compressed and contracts, the buffer assembly (32) transmits the pressure to the lifting mechanism (2) through the transmission mechanism (4), and the lifting mechanism (2) controls the adjustment portion (11) to extend.

2. A laser welding pad according to claim 1, characterized in that: The buffer assembly (32) includes a buffer plate (321) and a first elastic member (322); The buffer plate (321) is arranged on the clamping plate (31), and the buffer plate (321) is transmission-connected to the transmission mechanism (4); An elastic pad (311) is provided at the bottom of the splint (31); The first elastic member (322) is disposed on the clamping plate (31), and the first elastic member (322) is connected to the buffer plate (321); An adjustment assembly (33) for adjusting the position of the clamping plate (31) is provided on the side plate (3).

3. The laser welding pad according to claim 2, characterized in that: The transmission mechanism (4) includes a trigger assembly (41) and a transmission assembly (42); The clamping plate (31) is connected to the buffer plate (321) via the trigger assembly (41); The trigger assembly (41) is connected to the lifting mechanism (2) through the transmission assembly (42).

4. The laser welding pad according to claim 1, characterized in that: The lifting mechanism (2) includes a linear drive (21), a limiting component (22) and a control component (23); The linear drive (21) and the limiting assembly (22) are both arranged on the supporting portion (1), and the linear drive (21) applies a pre-tightening force to the adjusting portion (11); The limiting component (22) is used to limit the movement of the adjusting portion (11); The control component (23) is used to adjust the limiting range of the limiting component (22) on the regulating portion (11), and the control component (23) is connected to the transmission mechanism (4) in a transmission manner.

5. The laser welding pad according to claim 3, characterized in that: The trigger assembly (41) comprises a first extension rod (411), a second extension rod (412) and a first transmission rod (413); The first extension rod (411) and the second extension rod (412) are respectively connected to the clamping plate (31) and the buffer plate (321); A first fixed shaft (4121) is provided on the second extension rod (412); The first transmission rod (413) is rotatably arranged on the first extension rod (411), and a first straight groove (4131) is provided on the first transmission rod (413) for sliding engagement with the first fixed shaft (4121), and the first transmission rod (413) is transmission-connected to the transmission assembly (42).

6. The laser welding pad according to claim 5, characterized in that: The transmission assembly (42) includes a second transmission rod (421), a first movable rod (422) and a movable shaft (423); A connecting ring (4132) is provided on the first transmission rod (413), and the second transmission rod (421) is connected to the first transmission rod (413) via the connecting ring (4132); The first movable rod (422) is slidably mounted on the clamping plate (31), the first movable rod (422) is provided with a second elastic member (4222) connected to the clamping plate (31), and the first movable rod (422) is transmission-connected to the control assembly (23); A second straight groove (4122) extending in the horizontal direction is formed on the second extension rod (412), and a third straight groove (4221) extending in the vertical direction is formed on the first movable rod (422); The movable shaft (423) is slidably engaged with the second straight groove (4122) and the third straight groove (4221).

7. The laser welding pad according to claim 4, characterized in that: The limiting assembly (22) includes a connecting block (221) and a bracket (222); The connecting block (221) is arranged on the adjusting portion (11), and a second fixed shaft (2211) is provided on the connecting block (221); The bracket (222) is arranged on the support portion (1), a limit block (2221) is slidably mounted on the bracket (222), and the control component (23) is used to control the limit block (2221) to slide along the bracket (222).

8. The laser welding pad according to claim 7, characterized in that: The control assembly (23) includes a first screw (231), a first worm gear (232), a first worm (233), a rotating gear (234) and a rack (235); The first screw rod (231) is rotatably disposed on the bracket (222), and the first screw rod (231) is threadedly connected to the limiting block (2221); The first worm gear (232) is sleeved on the first screw rod (231); The first worm (233) is rotatably arranged on the support portion (1), and the first worm (233) is meshingly connected with the first worm wheel (232); The rotating gear (234) is sleeved on the first worm (233), the rack (235) is slidably mounted on the support portion (1), the rotating gear (234) is meshedly connected with the rack (235), and the rack (235) is transmission-connected with the transmission mechanism (4).

9. The laser welding pad according to claim 2, characterized in that: The adjustment assembly (33) includes a support (331), a first guide rod (332), a second screw rod (333) and a rotating handle (334); The support (331) is arranged on the side plate (3); The first guide rod (332) is mounted on the support (331), and the clamping plate (31) is slidably engaged with the first guide rod (332); The second screw rod (333) is rotatably arranged on the support (331), and the clamping plate (31) is threadedly connected to the second screw rod (333); The rotating handle (334) is rotatably disposed on the clamping plate (31), and the rotating handle (334) is used to drive the second screw (333) to rotate.

10. An intelligent welding device for an optical cable junction box, using a laser welding pad according to any one of claims 1 to 9, characterized in that: It comprises a welding robot (6) for welding a workpiece (7).

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