Intelligent leak-proof device of laser spot welding fixture for clutch assembly

Abstract

The present application is suitable for clutch accessory processing technical field, provide a kind of intelligent leakage-proof device of clutch accessory laser spot welding fixture, including welding frame, its bottom is provided with shock-absorbing trestle;Laser welding module and clamping module are arranged on the welding frame;Laser welding module integrates double-mode laser welding system;The present application not only ensures the high efficiency and precision of welding process, adapts to various welding needs and material characteristics, and the unique design of clamping pad effectively prevents the leakage of clamping surface, combined with the double monitoring of laser displacement sensor and industrial camera, provides solid security for welding operation;In addition, the height adjustment function of fixed frame and its clamping plate, and the introduction of six-degree-of-freedom articulated arm, further expand the operating range of welding system, so that it can flexibly cope with different sizes and complex shape clutch accessories, significantly improve the flexibility and adaptability of welding operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of clutch accessory processing, and particularly relates to an intelligent leakage-proof device of a clutch accessory laser spot welding clamp. BACKGROUND

[0002] In the manufacturing process of clutch accessories, laser spot welding technology is widely used in the welding operation of various accessories due to its high precision, high efficiency and low energy consumption; however, there are still some problems to be solved in the actual application of traditional laser spot welding clamps, especially the clamping stability and the clamping surface leakage problem in the welding process, which not only affects the welding quality, but also may pose a potential threat to the operation safety.

[0003] Firstly, clamping stability is a key factor in laser spot welding operation; clutch accessories often have complex shapes and sizes, and traditional clamp design often fails to achieve stable clamping of various accessories, resulting in displacement or shaking of the accessories during welding, thereby affecting the welding precision and weld quality; in addition, uneven or excessive clamping force of the clamp may also cause damage to the accessories, reducing the pass rate of products.

[0004] Secondly, due to the differences in material, structure and welding process of clutch accessories, traditional clamps often fail to form an effective sealing structure during welding, and the sealing fails due to thermal expansion or vibration during welding, which cannot adapt to the sealing needs of complex curved workpieces, resulting in leakage of gas or slag from the clamping surface during welding, which not only affects the cleanliness of the welding environment, but also may adversely affect the welding quality. SUMMARY

[0005] The present application provides an intelligent leakage-proof device of a clutch accessory laser spot welding clamp, which aims to solve the problems of insufficient clamping stability during spot welding of existing clutch accessories, difficulty in adapting to accessories with complex shapes and sizes, easy displacement or shaking during welding, affecting welding precision and quality, and even damaging the accessories; secondly, there is a leakage problem during welding, and due to the ineffective sealing structure of the clamp, gas or slag may leak from the clamping surface, affecting the cleanliness of the welding environment and the welding quality.

[0006] The present application is implemented as follows: an intelligent leakage-proof device of a clutch accessory laser spot welding clamp, comprising a welding frame, the bottom of which is provided with a shock-absorbing foot stand;

[0007] A laser welding module and a clamping module are arranged on the welding frame.

[0008] The laser welding module integrates a dual-mode laser welding system.

[0009] The clamping module comprises:

[0010] The welding table is arranged on the welding frame, and the cross section of the welding table is in rectangular distribution;

[0011] A group of fixed plates are arranged at both sides of the upper surface of the welding table;

[0012] One of the fixed plates is matched with the sliding table of the welding table;

[0013] An electric push rod is arranged on the welding table, and the end of the piston rod of the electric push rod is connected with the side wall of the slidable fixed plate through a universal ball hinge;

[0014] Fixed frames are arranged on the two fixed plates;

[0015] The clamping plates are arranged on the opposite sides of the two fixed frames through bearings, and the inner side of the clamping plate is provided with a fiber grating sensor;

[0016] The outer side of the clamping plate is provided with a clamping pad, and the clamping pad is integrated with a pressure sensing film;

[0017] The middle part of the clamping surface of the clamping pad is a concave structure, and the two sides are convex structures;

[0018] The concave structure is provided with an array of elastic micro-cone protrusions;

[0019] The convex structure is provided with a honeycomb-shaped concave contact groove, and the micro-cone protrusions and the honeycomb-shaped concave contact groove form a dynamic sealing structure.

[0020] Preferably, the laser welding module comprises:

[0021] A longitudinal screw rod sliding table is arranged on the welding frame and is vertically distributed with the welding frame;

[0022] A transverse screw rod sliding table is arranged at the moving end of the longitudinal screw rod sliding table, and the transverse screw rod sliding table is vertically distributed with the longitudinal screw rod sliding table;

[0023] An installation frame is arranged at the moving end of the transverse screw rod sliding table;

[0024] A six-degree-of-freedom articulated arm is arranged outside the installation frame;

[0025] A fixed seat is arranged at the wrist of the six-degree-of-freedom articulated arm, and the side wall of the fixed seat is provided with a laser displacement sensor;

[0026] A dual-mode laser welding system is arranged at the bottom side of the fixed seat.

[0027] Preferably, the dual-mode laser welding system comprises: a main laser arranged at the bottom of the fixed seat, and an auxiliary laser arranged on the lateral wall of the fixed seat.

[0028] Preferably, the outer wall of the fixed frame away from the other side of the electric push rod is provided with a servo motor, and the power output end of the servo motor is rigidly connected with the end of the corresponding clamping plate through an elastic coupling.

[0029] Preferably, a set of hydraulic cylinders vertically to the horizontal plane are symmetrically distributed on both sides of the two fixing frames, and a connecting plate is arranged outside the two fixing frames, and the ends of the two hydraulic cylinder piston rods are connected to the connecting plate through a universal ball hinge.

[0030] Preferably, the main laser and the auxiliary laser adopt a coaxial double optical path design.

[0031] Preferably, the pressure sensing film is connected to an external control system through a laser etched micro via array.

[0032] Preferably, the fiber grating sensors are distributed in a matrix along the length direction of the clamping plate, and at least 3 grating units are arranged in each row.

[0033] Preferably, an industrial camera is arranged on the side wall away from the auxiliary laser of the fixing seat.

[0034] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0035] Firstly, the clamping pad of the present application not only significantly enhances the stability of clamping, but also effectively prevents the leakage problem of the clamping surface during welding, improves the sealing performance, and at the same time, through the double monitoring system of the laser displacement sensor and the industrial camera, the displacement change and image information during the welding process can be captured and analyzed accurately in real time, so as to ensure the accuracy of the welding position and the high controllability of the operation process, and provide a solid and reliable guarantee for the safe and smooth operation of welding.

[0036] Secondly, the fixing frame and the clamping plate thereon can be precisely adjusted in height to adapt to different sizes and shapes of accessories, and the introduction of the six-degree-of-freedom articulated arm greatly expands the operation range of the laser welding system, so that it can easily cope with the welding requirements of complex shape clutch accessories, and exhibits excellent flexibility and adaptability.

[0037] Thirdly, the present application combines the double-mode laser welding module with the clamping module to ensure that the welding operation is not only efficient but also accurate. The double-mode laser welding module can easily cope with various welding requirements and different material characteristics due to its flexibility. At the same time, the clamping module realizes stable and precise clamping and adjustment of the clutch accessory. The organic combination of the two not only significantly improves the welding quality, but also greatly improves the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0039] Figure 2 is a schematic diagram of the three-dimensional structure of the present application;

[0040] Figure 3 is a schematic diagram of the perspective structure of the present application;

[0041] Figure 4 is a schematic diagram of the front structure of the present application;

[0042] Figure 5 is a schematic diagram of the left view of the present application;

[0043] Figure 6 is a schematic diagram of the top view of the present application;

[0044] Figure 7 is a schematic diagram of the right view of the present application;

[0045] Figure 8 is a schematic diagram of the enlarged structure at A of the present application; Figure 4

[0046] In the figure: 1, welding frame; 2, shock-absorbing foot; 3, welding table; 4, fixed plate; 5, electric push rod; 6, fixed frame; 7, clamping plate; 8, fiber grating sensor; 9, clamping pad; 10, micro-cone protrusion array; 11, honeycomb-shaped concave contact groove; 12, longitudinal screw sliding table; 13, transverse screw sliding table; 14, mounting frame; 15, six-degree-of-freedom articulated arm; 16, fixed seat; 17, laser displacement sensor; 18, main laser; 19, auxiliary laser; 20, servo motor; 21, hydraulic cylinder; 22, connecting plate; 23, industrial camera. DETAILED DESCRIPTION

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings and detailed description which follows, and by way of non-limiting examples; the terms "comprise", "comprising", "include", "including", "have" and "having" as used herein are specifically intended to be open-ended terms i.e., the use of the terms "comprise", "comprising", "include", "including", "have" and "having" to describe a feature, characteristic, component, or process of the application should not be taken to suggest that there are no further features, characteristics, components, or processes that are also needed to embody the application, and that the features, characteristics, components, or processes are not essential to the application.

[0048] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all referring to a common set of embodiments.

[0049] The embodiment of the present application provides an intelligent leakage-proof device of a laser spot welding clamp for a clutch assembly, as shown in Figures 1-8 ​As shown, including welding frame 1, its bottom is provided with shock absorbing legs 2;

[0050] The laser welding module and clamping module provided on the welding frame 1;

[0051] The laser welding module integrates a dual-mode laser welding system;

[0052] The clamping module comprises:

[0053] The welding table 3 provided on the welding frame 1, the cross section of the welding table 3 is rectangular distribution;

[0054] A group of fixed plates 4 are arranged on the upper surface of the welding table 3;

[0055] One of the fixed plates 4 cooperates with the sliding table of the welding table 3;

[0056] The welding table 3 is provided with an electric push rod 5, and the piston rod end of the electric push rod 5 is connected with the side wall of the slidable fixed plate 4 through a universal ball hinge;

[0057] The fixed frame 6 provided on the two fixed plates 4;

[0058] The opposite side of the two fixed frames 6 is provided with a clamping plate 7 through a bearing, and the inner side of the clamping plate 7 is provided with a fiber grating sensor 8;

[0059] The outer side of the clamping plate 7 is provided with a clamping pad 9, and the clamping pad 9 is integrated with a pressure sensing film;

[0060] The middle part of the clamping surface of the clamping pad 9 is concave structure, and the two sides are convex structure;

[0061] The concave structure is provided with an elastic micro-cone array 10;

[0062] The convex structure is provided with a honeycomb concave contact groove 11, and the micro-cone and the honeycomb concave contact groove 11 cooperate to form a dynamic sealing structure.

[0063] It should be noted that, due to the lack of clamping stability of the existing clutch assembly spot welding, it is difficult to adapt to complex shape and size of the assembly, easy to lead to displacement or shaking in the welding process, affect the welding precision and quality, and even damage the assembly; second, there is a leakage problem in the welding process, because the sealing structure of the clamp is not effective, gas or slag may leak from the clamping surface, affecting the cleanliness of the welding environment and the welding quality. The design of the clamping pad 9 significantly enhances the clamping stability, effectively prevents the leakage problem in the welding process, and the double monitoring system of the laser displacement sensor 17 and the industrial camera 23 ensures the accuracy of the welding position and the high controllability of the operation process, providing a solid guarantee for the safe and smooth operation of the welding operation; in addition, the height adjustable function of the fixed frame 6 and its clamping plate 7, combined with the introduction of the six degrees of freedom joint arm 15, makes the laser welding system can easily cope with different sizes and complex shapes of clutch assembly, showing excellent adaptability and flexibility; most importantly, the combination of the dual-mode laser welding module and the clamping module not only significantly improves the welding quality and operation efficiency, but also makes the welding system flexible to adapt to various welding requirements and material characteristics, thus meeting the diversified and high-precision welding operation requirements.

[0064] Specifically, in the present embodiment, the present scheme mainly includes a welding frame 1, which serves as the main support structure, and is equipped with shock-absorbing legs 2 at the bottom to ensure stability and reduce vibration interference during welding; the laser welding module is integrated on the welding frame 1, which adopts an advanced dual-mode laser welding system and can flexibly switch between different working modes according to different welding requirements, achieving efficient and precise welding operation.

[0065] The clamping module mainly consists of a welding table 3, a fixed plate 4, an electric push rod 5, a fixed frame 6, a clamping plate 7, a fiber Bragg grating sensor 8, and a clamping pad 9; the welding table 3 provides a stable welding platform for the clutch assembly; two fixed plates 4 are arranged on the upper surface of the welding table 3, one of which is matched with the sliding table of the welding table 3 to realize the sliding adjustment function.

[0066] The electric push rod 5 serves as the power source, and its piston rod end is connected to the side wall of the slidable fixed plate 4 through a universal ball hinge. Through the extension and retraction movement of the electric push rod 5, the sliding fixed plate 4 can be driven to adjust the position, thereby adapting to the clamping of clutch assemblies of different sizes and shapes; two fixed frames 6 are respectively installed with clamping plates 7, which are installed on the fixed frames 6 through bearings and can rotate flexibly to adapt to the clamping requirements of different assemblies.

[0067] The optical fiber grating sensor 8 is embedded in the inner side of the clamping plate 7, which is used for monitoring the size of the clamping force in real time, and ensuring that the clamping process will not cause damage to the fittings; the clamping pad 9 is arranged on the outer side of the clamping plate 7, and the clamping pad 9 is integrated with a pressure sensing film, which can further accurately perceive the clamping pressure, and improve the stability and safety of clamping;

[0068] The middle part of the clamping surface of the clamping pad 9 is a concave structure, and the two sides are convex structures; the micro-cone-shaped protrusion array 10 is arranged in the concave structure, and the honeycomb-shaped concave contact groove 11 is arranged in the convex structure; the cone-shaped protrusion can be in high contact with the wall area through elastic deformation, and the thermal expansion of the fitting during welding is absorbed through the transverse deformation of the honeycomb hole, so that the sealing failure is avoided; the design makes the micro-cone-shaped protrusion and the honeycomb-shaped concave contact groove 11 cooperate with each other when the clamping pad 9 clamps the clutch fitting, so that a dynamic sealing structure is formed, the clamping surface leakage during the welding process is effectively prevented, and the welding quality and the long-term use effect of the clamp are ensured.

[0069] In the further preferred embodiment of the present application, as shown in Figures 1-4 The laser welding module comprises:

[0070] The longitudinal screw sliding table 12 is arranged on the welding frame 1 and is vertically distributed with the welding frame 1;

[0071] The transverse screw sliding table 13 is arranged at the moving end of the longitudinal screw sliding table 12, and the transverse screw sliding table 13 is vertically distributed with the longitudinal screw sliding table 12;

[0072] The mounting frame 14 is arranged at the moving end of the transverse screw sliding table 13;

[0073] The six-degree-of-freedom articulated arm 15 is arranged outside the mounting frame 14;

[0074] The fixing seat 16 is arranged at the wrist part of the six-degree-of-freedom articulated arm 15, and the side wall of the fixing seat 16 is provided with a laser displacement sensor 17;

[0075] The dual-mode laser welding system is arranged at the bottom side of the fixing seat 16.

[0076] In the further preferred embodiment of the present application, as shown in Figure 4 The dual-mode laser welding system comprises a main laser 18 arranged at the bottom of the fixing seat 16 and an auxiliary laser 19 arranged on the lateral wall of the fixing seat 16.

[0077] In the embodiment, the moving end of the longitudinal screw sliding table 12 can realize accurate movement in the vertical direction, so as to adjust the height of the laser welding system; at the same time, the moving end of the transverse screw sliding table 13 enables the laser welding system to further adjust the position in the horizontal direction, so as to realize accurate positioning in the two-dimensional plane;

[0078] Under the support of the mounting frame 14, the six-degree-of-freedom articulated arm 15 is arranged outside the moving end of the transverse screw sliding table 13; the six-degree-of-freedom articulated arm 15 is designed to be flexible in rotation and swing in three-dimensional space, so as to meet the welding requirements of the clutch assembly of complex shape; a fixed seat 16 is arranged at the wrist of the six-degree-of-freedom articulated arm 15, and the side wall thereof is provided with a laser displacement sensor 17; the laser displacement sensor 17 can monitor the displacement change in the welding process in real time, and ensure the accuracy of the welding position.

[0079] The dual-mode laser welding system is installed at the bottom side of the fixed seat 16, which can flexibly switch the working mode according to different welding requirements and material characteristics, and realize efficient and accurate welding operation.

[0080] As shown in the further preferred embodiment of the present application, Figure 6 The outer wall of the fixed frame 6 away from the electric push rod 5 is provided with a servo motor 20, and the power output end of the servo motor 20 is rigidly connected with the end of the corresponding clamping plate 7 through an elastic coupling.

[0081] In this embodiment, the servo motor 20 is started to transmit power to the clamping plate 7 through the elastic coupling, and drives the clamping plate 7 to rotate, so as to adapt to the clamping and welding requirements of the clutch assembly of different shapes and sizes; at the same time, due to the elastic deformation ability of the elastic coupling, the vibration or impact generated in the clamping process can be absorbed and alleviated, so as to protect the servo motor 20 and the clamping plate 7 from damage.

[0082] As shown in the further preferred embodiment of the present application, Figure 7 The two fixed frames 6 are symmetrically distributed with a group of hydraulic cylinders 21 whose axes are perpendicular to the horizontal plane, and the two fixed frames 6 are outwardly extended and provided with connecting plates 22, and the piston rods of the two hydraulic cylinders 21 are connected with the connecting plates 22 through universal ball hinges.

[0083] In this embodiment, the hydraulic cylinders 21 are connected with the connecting plates 22 through universal ball hinges, and this connection mode enables the hydraulic cylinders 21 to drive the connecting plates 22, and further drive the entire fixed frame 6 and the clamping plate 7 mounted thereon to be accurately adjusted in height; this design allows the assembly firmly fixed by the two clamping plates 7 to be flexibly adjusted in height during the welding process; therefore, when the assembly is turned over or adjusted in posture, the appropriate gap between the assembly and the welding table 3 can be ensured, the collision can be effectively avoided, and the integrity of the assembly and the welding table 3 can be protected, and the smooth welding operation can be ensured.

[0084] As shown in the further preferred embodiment of the present application, Figure 4 The main laser 18 and the auxiliary laser 19 adopt a coaxial double-light-path design.

[0085] In this embodiment, the main laser 18 light path is responsible for spot welding fusion, and the auxiliary laser 19 light path forms a ring-shaped spot through a wavelength-selective mirror to monitor the weld forming, which not only improves the efficiency and accuracy of welding, but also enhances the controllability and reliability of weld forming.

[0086] In further preferred embodiments of the present application, as shown in Figures 1-8 The pressure sensing film is connected to the external control system through a laser etched micro via array.

[0087] In this embodiment, when external pressure acts on the sensing film, the film will deform due to stress, which in turn affects the laser etched micro via array. The design of the micro via array allows them to sensitively capture the deformation of the film and convert it into an electrical signal to the external control system.

[0088] In further preferred embodiments of the present application, as shown in Figure 1 The fiber grating sensor 8 is distributed in a matrix along the length direction of the clamping plate 7, and at least 3 grating units are arranged in each row.

[0089] In this embodiment, since the grating units are distributed in a matrix on the clamping plate 7, simultaneous monitoring of multiple positions can be achieved, improving the accuracy and reliability of the measurement.

[0090] In further preferred embodiments of the present application, as shown in Figure 4 The industrial camera 23 is arranged on the side wall away from the auxiliary laser 19 of the fixed seat 16.

[0091] In this embodiment, when welding is performed, the industrial camera 23 can capture and record the image information of the area in real time. Through image analysis, the operator can clearly observe the process details of laser processing, including the positioning of the workpiece, size changes, and any possible abnormal conditions.

[0092] Working principle: The welding frame 1 of the present application serves as the main support structure of the entire welding system, and is equipped with shock-absorbing legs 2 at the bottom, which ensure stability during welding and effectively reduce vibration interference; a dual-mode laser welding module is integrated on the welding frame 1, which can flexibly switch between different working modes according to different welding requirements and material properties, thereby achieving efficient and precise welding operations.

[0093] In order to ensure the stability and accuracy of the clutch assembly during the welding process, a clamping module is designed on the welding frame 1; the welding table 3 provides a stable welding platform for the clutch assembly, and a fixed plate 4 is arranged on the upper surface of each side of the welding table 3, one of which is matched with the sliding table of the welding table 3 to realize the sliding adjustment function, and the electric push rod 5 is connected with the side wall of the slidable fixed plate 4 through the universal ball hinge as the power source to drive the sliding fixed plate 4 to adjust the position to adapt to the clamping process of clutch assemblies of different sizes and shapes;

[0094] The clamping plate 7 is installed on the fixed frame 6 through the bearing and can rotate flexibly, and after the servo motor 20 is started, the elastic coupling transmits the power to the clamping plate 7 to drive it to rotate to meet the clamping and welding requirements of clutch assemblies of different shapes and sizes; at the same time, the elastic deformation ability of the elastic coupling can absorb and relieve the vibration or impact that may be generated during the clamping process to protect the servo motor 20 and the clamping plate 7 from damage;

[0095] On the inside of the clamping plate 7, the fiber grating sensor 8 is embedded for real-time monitoring of the clamping force to ensure that the assembly is not damaged during clamping; and a clamping pad 9 is arranged on the outside of the clamping plate 7, which integrates a pressure sensing film to further accurately perceive the clamping pressure and improve the stability and safety of clamping; the clamping pad 9 is designed uniquely, with a concave structure in the middle of the clamping surface and convex structures on both sides, a micro-cone-shaped protrusion array 10 is arranged in the concave structure, and a honeycomb-shaped concave contact groove 11 is arranged in the convex structure; this design allows the clamping pad 9 to form a dynamic sealing structure when clamping the clutch assembly, effectively preventing leakage of the clamping surface during welding;

[0096] In addition, the hydraulic cylinder 21 is connected with the connecting plate 22 through the universal ball hinge to drive the connecting plate 22 to drive the entire fixed frame 6 and the clamping plate 7 installed thereon to make accurate height adjustment; this design allows flexible height adjustment of the assembly firmly fixed by the two clamping plates 7 during welding to ensure that the assembly and the welding table 3 maintain an appropriate gap to avoid collision;

[0097] In order to realize the accurate positioning of the laser welding system in the two-dimensional plane, the moving end of the longitudinal screw rod sliding table 12 can realize accurate movement in the vertical direction, and the moving end of the transverse screw rod sliding table 13 allows the laser welding system to further adjust the position in the horizontal direction; under the support of the mounting frame 14, the six-degree-of-freedom articulated arm 15 is arranged outside the moving end of the transverse screw rod sliding table 13 and can rotate and swing flexibly in three-dimensional space to meet the welding requirements of complex-shaped clutch assemblies;

[0098] A fixed seat 16 is arranged at the wrist of the six-degree-of-freedom articulated arm 15, and the side wall thereof is equipped with a laser displacement sensor 17 for monitoring displacement changes in real time during the welding process to ensure the accuracy of the welding position; a dual-mode laser welding system is installed on the bottom side of the fixed seat 16, the main laser 18 is responsible for spot welding melting, and the auxiliary laser 19 forms a ring-shaped spot through a wavelength-selective mirror to monitor the weld forming; this design not only improves the efficiency and accuracy of welding, but also enhances the controllability and reliability of weld forming.

[0099] When performing welding operations, the industrial camera 23 can capture and record image information of the welding area in real time; through image analysis, the operator can clearly observe the process details of laser processing, including the positioning of the workpiece, size changes, and any possible abnormal conditions, thereby ensuring the smooth progress of the welding operation.

[0100] It should be noted that for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the order of the described actions, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0101] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented by other means. For example, the device embodiments described above are only schematic; for example, the division of the above units can have another division manner during actual implementation; for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or communication connection between the displayed or discussed mutual units can be indirect coupling or communication connection through some interface, device or unit, which can be electrical or other form.

[0102] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. they can be located in one place, or can be distributed on multiple network units. According to actual needs, some or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0103] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Obviously, the described examples are only some of the embodiments of the present application, but not all the embodiments. Based on these examples, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. Although the present application is described in detail with reference to the above examples, those of ordinary skill in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative work, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also fall within the scope of the present application.

Claims

1. An intelligent leak-proof device for a laser spot welding fixture for clutch pack assemblies, characterized by, The utility model relates to a laser welding device, comprising: a welding frame provided with shock-absorbing legs at the bottom; a laser welding module and a clamping module arranged on the welding frame; the laser welding module integrates a dual-mode laser welding system; the clamping module comprises: a welding table arranged on the welding frame, the cross section of the welding table being rectangularly distributed; a set of fixed plates arranged on both sides of the upper surface of the welding table; one of the fixed plates is matched with a sliding table of the welding table; an electric push rod is arranged on the welding table, and the piston rod of the electric push rod is connected to the side wall of the slidable fixed plate through a universal ball hinge; fixed frames arranged on the two fixed plates; a clamping plate is arranged on the opposite side of each of the two fixed frames through a bearing, and a fiber bragg grating sensor is arranged on the inner side of the clamping plate; a clamping pad is arranged on the outer side of the clamping plate, and a pressure sensing film is integrated in the clamping pad; the middle part of the clamping surface of the clamping pad is concave, and the two sides are convex; the concave structure is provided with an array of elastic micro-cone-shaped protrusions; the convex structure is provided with a honeycomb-shaped concave contact groove, and the micro-cone-shaped protrusions and the honeycomb-shaped concave contact groove form a dynamic sealing structure in cooperation; the laser welding module comprises: a longitudinal screw rod sliding table arranged on the welding frame, which is vertically distributed with the welding frame; a transverse screw rod sliding table arranged at the moving end of the longitudinal screw rod sliding table, which is vertically distributed with the longitudinal screw rod sliding table; a mounting frame arranged at the moving end of the transverse screw rod sliding table; a six-degree-of-freedom articulated arm arranged on the outer side of the mounting frame; a fixed seat arranged on the wrist of the six-degree-of-freedom articulated arm, and a laser displacement sensor is arranged on the side wall of the fixed seat; a dual-mode laser welding system arranged at the bottom side of the fixed seat; the dual-mode laser welding system comprises:

2. An intelligent leak-proof device for a laser spot welding fixture of a clutch pack as set forth in claim 1, characterized in that, a main laser arranged at the bottom of the fixed seat, and an auxiliary laser arranged on the lateral wall of the fixed seat; 3. An intelligent leak-proof device for a laser spot weld fixture of a clutch pack as set forth in claim 2, wherein, the side wall of the fixed seat away from the auxiliary laser is provided with an industrial camera.

4. An intelligent leak-proof device for a laser spot weld fixture of a clutch pack as set forth in claim 1, wherein, the outer wall of the fixed frame away from the other side of the electric push rod is provided with a servo motor, and the power output end of the servo motor is rigidly connected to the end of the corresponding clamping plate through an elastic coupling.

5. An intelligent leak-proof device for a laser spot weld fixture for clutch pack assemblies as defined in claim 1, wherein, a set of hydraulic cylinders whose axial direction is perpendicular to the horizontal plane are symmetrically arranged on both sides of the two fixed frames, and the two sides of the fixed frame are outwardly extended to be provided with a connecting plate, and the piston rod of the two hydraulic cylinders is connected to the connecting plate through a universal ball hinge.

6. An intelligent leak-proof device for a laser spot weld fixture for clutch pack assemblies as defined in claim 1, wherein, the main laser and the auxiliary laser adopt coaxial double-light-path design. the pressure sensing film is connected to the external control system through a laser etching micro-via array. the fiber bragg grating sensors are arranged in a matrix along the length direction of the clamping plate, and at least three grating units are arranged in each row.

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