Automatic polymer diffusion welding

Abstract

The utility model provides an automatic macromolecule diffusion welding device which comprises a rack and a welding device, the rack is provided with a bearing platform and an auxiliary rack, the welding device comprises an upper welding head and a lower welding head, the bearing platform is fixedly provided with the lower welding head and a polishing device, the polishing device comprises a polishing mechanism and a moving device, and the auxiliary rack is movably provided with a moving body through a crossed sliding rail. An upper welding head is fixedly installed on the moving body. The upper welding head and the lower welding head are matched to extrude and clamp a welding workpiece, the welding workpiece is heated through large current, the macromolecule diffusion welding process is completed, after the graphite welding face of the welding head is oxidized, an oxide layer of the graphite welding face is ground through the grinding device, and the grinding device comprises a grinding mechanism and a moving device. The moving device comprises a first moving table, a second moving table and a translation sliding rod, the grinding mechanism is fixedly installed at one end of the translation sliding rod, the grinding mechanism is controlled to move in the X-Y-Z axis direction in cooperation with the driving device, the grinding mechanism is rapidly controlled to grind an oxide layer of the graphite welding face, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diffusion welding, and particularly relates to an automatic polymer diffusion welding. Background Art

[0002] Polymer diffusion welding, also known as diffusion welding, refers to a solid-state welding method in which workpieces are pressurized at high temperatures without visible deformation and relative movement.

[0003] Diffusion welding machines are used to press-weld the ends of workpieces (copper / aluminum foil soft connections) into shape. The prior art generally adopts the principle of resistance welding: the pressing device presses the workpiece between the upper and lower graphite electrodes (welding heads), and a large current is passed between the two electrodes, causing the workpiece to conduct electricity and heat up to 60% to 80% of the melting point temperature of the base material, and maintaining temperature and pressure to press-weld each layer of foil together.

[0004] During the operation of the existing diffusion welding, the temperature of the graphite welding head reaches 600 - 650 degrees Celsius. The high temperature oxidizes the surface of the graphite, affecting the welding effect. The graphite welding head needs to be disassembled and polished, and the graphite welding head also needs to be leveled during installation, which greatly affects the work efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automatic polymer diffusion welding to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an automatic polymer diffusion welding, comprising a frame and a welding device. The frame is equipped with a bearing platform and a sub-frame. The welding device includes an upper welding head and a lower welding head. The bearing platform is fixedly installed with the lower welding head and a grinding device. The grinding device includes a grinding mechanism and a moving device. The sub-frame is movably installed with a moving body through a cross slide rail, and the moving body is fixedly installed with the upper welding head.

[0007] Preferably, the moving device includes a base plate, a first moving table, a second moving table, and a translation slide bar. The base plate is movably connected to the first moving table, the first moving table is movably connected to the second moving table, the second moving table is movably connected to the translation slide bar, and the translation slide bar is fixedly installed with the grinding mechanism.

[0008] Preferably, the base plate is driven and connected to the first moving table by a first driving device, the first moving table is driven and connected to the second moving table by a second driving device, and the second moving table is driven and connected to the translation slide bar by a third driving device.

[0009] Preferably, the first driving device, the second driving device, and the third driving device are all motors.

[0010] Preferably, a pressing motor is fixedly installed on the auxiliary frame, and the pressing motor is drivingly connected to the moving body through a lead screw.

[0011] Preferably, the cross slide rail includes a first rail, a second rail and a sliding body.

[0012] Preferably, the first rail is slidably connected to the second rail through the sliding body. The sliding body includes a sliding plate and rollers, and the sliding plate is provided with sliding holes.

[0013] Preferably, both the first rail and the second rail are provided with V-shaped grooves.

[0014] Preferably, the V-shaped groove of the first rail is movably connected to the V-shaped groove of the second rail through the rollers.

[0015] Preferably, a dust-proof housing is fixedly installed on the frame, and the dust-proof housing is provided with a dust suction port.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, the welding workpiece is squeezed and clamped by the cooperation of the upper welding head and the lower welding head, and then the welding workpiece is heated by a large current to complete the polymer diffusion welding process. When the graphite welding surface of the welding head is oxidized, the oxide layer on the graphite welding surface is polished by a polishing device. Specifically, the polishing device includes a polishing mechanism and a moving device. The moving device includes a first moving table, a second moving table and a translation slide bar. The first driving device drives the first moving table to move in the X-axis direction, the second driving device drives the second moving table to move in the Z-axis direction, and the third driving device drives the translation slide bar to move in the Y-axis direction. The polishing mechanism is fixedly installed at one end of the translation slide bar, and the driving device is cooperated to control the polishing mechanism to move in the X-Y-Z axis directions, quickly controlling the polishing mechanism to polish the oxide layer on the graphite welding surface and improving the working efficiency. Description of the Drawings

[0018] Figure 1 It is a structural view of the first perspective of the present utility model.

[0019] Figure 2 It is a structural view of the second perspective of the present utility model.

[0020] Figure 3 It is an internal structural view of the present utility model.

[0021] Figure 4 It is a structural view of the first perspective of the polishing device of the present utility model.

[0022] Figure 5 It is a structural view of the second perspective of the polishing device of the present utility model.

[0023] Figure 6It is a structural view of the initial state of the pressing mechanism of the present utility model.

[0024] Figure 7 It is a structural view of the first perspective of the pressing state of the pressing mechanism of the present utility model.

[0025] Figure 8 It is a structural view of the second perspective of the pressing state of the pressing mechanism of the present utility model.

[0026] Figure 9 It is a structural view of the first perspective of the cross slide rail of the present utility model.

[0027] Figure 10 It is a structural view of the first and second perspectives of the cross slide rail of the present utility model.

[0028] Figure 11 It is an exploded structural view of the cross slide rail of the present utility model.

[0029] Figure 12 It is a structural view of the sliding body of the present utility model.

[0030] In the figure: frame 1, welding device 2, bearing platform 3, auxiliary frame 4, upper welding head 5, lower welding head 6, grinding device 7, grinding mechanism 8, moving device 9, cross slide rail 10, moving body 11, substrate 12, first moving table 13, second moving table 14, translation slide bar 15, first driving device 16, second driving device 17, third driving device 18, pressing motor 19, lead screw 20, first rail 21, second rail 22, sliding body 23, slide plate 24, roller 25, slide hole 26, dust-proof housing 27, dust suction port 28. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0032] Embodiment 1:

[0033] An automatic polymer diffusion welding provided by the utility model includes a frame 1 and a welding device 2. The frame 1 is installed with a bearing platform 3 and a secondary frame 4. The welding device 2 includes a lower welding head 5 and an upper welding head 6. The bearing platform 3 is fixedly installed with the lower welding head 5 and a grinding device 7. The grinding device 7 includes a grinding mechanism 8 and a moving device 9. The secondary frame 4 is movably installed with a moving body 11 through a cross slide rail 10, and the moving body 11 is fixedly installed with the upper welding head 6. The moving device 9 includes a substrate 12, a first moving table 13, a second moving table 14 and a translation slide bar 15. The substrate 12 is movably connected with the first moving table 13, the first moving table 13 is movably connected with the second moving table 14, the second moving table 14 is movably connected with the translation slide bar 15, and the translation slide bar 15 is fixedly installed with the grinding mechanism 8. The substrate 12 is drivingly connected with the first moving table 13 through a first driving device 16, the first moving table 13 is drivingly connected with the second moving table 14 through a second driving device 17, and the second moving table 14 is drivingly connected with the translation slide bar 15 through a third driving device 18. The first driving device 16, the second driving device 17 and the third driving device 18 are all motors. The secondary frame 4 is fixedly installed with a pressing motor 19, and the pressing motor 19 is drivingly connected with the moving body 11 through a lead screw 20. The cross slide rail 10 includes a first rail 21, a second rail 22 and a sliding body 23. The first rail 21 is slidably connected with the second rail 22 through the sliding body 23. The sliding body 23 includes a slide plate 24 and a roller 25, and the slide plate 24 is provided with a slide hole 26. Both the first rail 21 and the second rail 22 are provided with V-shaped grooves. The V-shaped groove of the first rail 21 is movably connected with the V-shaped groove of the second rail 22 through the roller 25. The frame 1 is fixedly installed with a dust-proof housing 27, and the dust-proof housing 27 is provided with a dust suction port 28.

[0034] Through the above technical solution, the utility model squeezes and clamps the welding workpiece through the cooperation of the upper welding head 5 and the lower welding head 6, and then makes the welding workpiece heat up through a large current to complete the polymer diffusion welding process. When the graphite welding surface of the welding head is oxidized, the oxidation layer of the graphite welding surface is polished by the grinding device 7. Specifically, the grinding device 7 includes a grinding mechanism 8 and a moving device 9. The moving device 9 includes a first moving table 13, a second moving table 14 and a translation slide bar 15. The first driving device 16 drives the first moving table 13 to move in the X-axis direction, the second driving device 17 drives the second moving table 14 to move in the Z-axis direction, and the third driving device 18 drives the translation slide bar 15 to move in the Y-axis direction. The grinding mechanism 8 is fixedly installed at one end of the translation slide bar 15, and the driving device is cooperated to control the grinding mechanism 8 to move in the X-Y-Z axis directions, quickly controlling the grinding mechanism 8 to polish the oxidation layer of the graphite welding surface and improving the working efficiency.

[0035] Embodiment 2:

[0036] The frame of the utility model is made of steel materials, having good stability and load-bearing capacity, and improving the stability during equipment operation. The frame is equipped with a mounting platform and a sub-frame. The mounting platform is a bearing platform fixed on the frame, used for installing the upper welding head and the grinding device; the sub-frame is located above the mounting platform, used for supporting and guiding the movement of the moving body. The welding device includes an upper welding head and a lower welding head. The welding device is the core component of this equipment, including the upper welding head and the lower welding head. The lower welding head is fixedly installed on the mounting platform, remaining stable without movement; the upper welding head is installed on the moving body and can move up and down, facilitating workers to pick up and place welding workpieces. Both the upper welding head and the lower welding head are made of graphite materials, having good electrical conductivity. To solve the problem that the graphite welding head is prone to oxidation, the utility model installs a grinding device on the mounting platform, beside the lower welding head. The grinding device includes two parts: a grinding mechanism and a moving device. The grinding mechanism consists of a grinding wheel that can rotate at high speed and a driving motor, capable of quickly grinding the oxide layer on the surface of the graphite welding head. The moving device is controlled by a precise motor drive system and can move the grinding mechanism in the X-Y-Z three-axis directions to ensure uniform grinding of the entire surface of the welding head. This design enables the surface of the welding head to remain smooth and flat, improving the welding quality. The moving device is driven by a servo motor, having the characteristics of high precision and fast response. It can accurately control the position and speed of the grinding mechanism, ensuring the stability and consistency of the grinding process. At the same time, the moving device is also equipped with limit switches and encoders, which can accurately locate the starting point and ending point of grinding, preventing the welding head from being damaged due to over-grinding. The sub-frame is movably installed with a moving body through a cross slide rail, and the cross slide rail is a precise and stable linear guide rail structure. The cross slide rail enables the moving body to make precise linear movement in the up and down directions, thereby adjusting the up and down position of the lower welding head, facilitating workers to pick up and place welding workpieces, and also enabling the equipment to adapt to welding workpieces of different sizes and thicknesses. The moving body is fixedly installed on the cross slide rail. Cooperating with the cross slide rail, the moving body can make precise linear movement in the up and down directions. The moving body is made of high-strength steel materials, ensuring its sufficient rigidity, which is beneficial to improving the movement performance and precision of the equipment. The drive of the moving body adopts a high-precision servo motor system, cooperating with a precise lead screw transmission mechanism, and can achieve a positioning accuracy of the micron level. The lower welding head is fixedly installed on the moving body and can be precisely positioned together with the moving body. The size and shape of the lower welding head match those of the upper welding head to ensure uniform pressure distribution during welding. The lower welding head is also equipped with an independent temperature control system, which can precisely control the welding temperature, avoiding workpiece deformation or a decline in welding quality caused by overheating. To further improve the grinding effect, the grinding device is also equipped with a dust suction system. The graphite dust generated during the grinding process will be sucked away in a timely manner, keeping the working environment clean and also avoiding the influence of dust on the welding quality.

[0037] To further improve the welding efficiency and quality, this equipment also integrates an advanced control system. The control system uses an industrial-grade PLC (Programmable Logic Controller) as the core and is equipped with a touch-screen human-machine interface to achieve intelligent operation and management of the equipment.

[0038] The main functions of the control system include:

[0039] 1. Welding parameter setting: Operators can easily set parameters such as welding current, pressure, temperature, and time through the touch screen, and the system will automatically recommend the optimal parameters according to different materials and workpiece sizes.

[0040] 2. Grinding control: The system can automatically trigger the grinding program according to the number of welds or running time without manual intervention. During the grinding process, the system will monitor the grinding depth and uniformity in real time to ensure the best state of the welding head.

[0041] 3. Position adjustment: By precisely controlling the movement of the moving body, the system can automatically adjust the position of the lower welding head to adapt to workpieces of different sizes. This automatic alignment function reduces the time and error of manual adjustment.

[0042] 4. Real-time monitoring: During the welding process, the system will monitor key parameters such as current, temperature, and pressure in real time. Once an abnormality is detected, it will immediately alarm and take corresponding measures, such as stopping welding or adjusting parameters.

[0043] 5. Data recording and analysis: The system will automatically record the parameters and results of each welding, which is convenient for subsequent quality traceability and process optimization. Through big data analysis, the system can also continuously optimize welding parameters to improve product quality.

[0044] In addition, this equipment also takes a number of measures to improve safety and reliability:

[0045] 1. Safety protection: An optoelectronic protection device is set in the welding area. Once a foreign object intrusion is detected, the system will immediately stop working to prevent accidents.

[0046] 2. Cooling system: To prevent the equipment from overheating during long-term operation, this equipment is equipped with an efficient water-cooling system that can dissipate heat quickly to ensure the stable operation of the equipment.

[0047] 3. Emergency stop: Emergency stop buttons are set at multiple positions on the equipment, and operators can quickly stop the equipment operation under any circumstances.

[0048] 4. Fault diagnosis: The system has a self-diagnosis function that can detect potential faults in a timely manner and give maintenance suggestions to improve the reliability and service life of the equipment.

[0049] 5. Remote Monitoring: The device supports remote monitoring and diagnostic functions. Technicians can remotely view the device status through the network, conduct fault diagnosis and software upgrades, improving the maintenance efficiency of the device.

[0050] Embodiment Three:

[0051] The reference datum plane of this embodiment: The X-Y plane is parallel to both the bearing platform and the substrate, and the Z-axis is in the axial direction perpendicular to the X-Y plane.

[0052] The design of the moving device of the present utility model adopts a multi-stage moving structure. The moving device includes a substrate, a first moving table, a second moving table, and a translation slide bar to achieve precise positioning and movement of the grinding mechanism in three directions, namely, movement in the X-Y-Z axis directions. The substrate serves as the basis of the entire moving device and is fixedly installed on the bearing platform to provide stable support. The first moving table is connected to the substrate through a precise linear guide rail and ball screw mechanism to achieve movement in the X-axis direction. This connection method ensures that the first moving table can slide smoothly and precisely on the substrate and has a high load-bearing capacity. The second moving table forms a moving mechanism in the Z-axis direction with the first moving table. Similarly, a combination of a linear guide rail and a ball screw is used, enabling the second moving table to move in a direction perpendicular to the X-Y plane on the first moving table (i.e., in the Z-axis direction, sliding up and down). This design allows the moving device to adjust the vertical position of the grinding mechanism and the distance between the grinding mechanism and the surface of the welding head, and can control the thickness of the surface of the grinding welding head. The translation slide bar and the second moving table constitute a moving mechanism in the Y-axis direction. Driving methods such as cylinders, electric push rods, and transmission belts can be used to drive the translation slide bar, enabling the translation slide bar to expand and contract in a direction perpendicular to the X-Z plane. In cooperation with the X-axis of the first moving table, the moving device can control the movement of the grinding mechanism in the X-Y plane to ensure the flatness of the grinding welding head. The grinding mechanism is fixedly installed at the end of the translation slide bar and moves up and down with the movement of the translation slide bar. The grinding mechanism includes a high-speed rotating grinding wheel and a driving motor, which can quickly remove the oxide layer on the surface of the welding head. Each moving axis of the entire moving device is equipped with a high-precision servo motor and an encoder system to ensure the accuracy and repeatability of the movement. At the same time, limit switches are provided at the end of each axis to prevent equipment damage caused by over-travel. The control system can achieve the positioning of the grinding mechanism at any position in three-dimensional space by coordinating the movement of the three axes, thereby ensuring the comprehensive and uniform grinding of the surface of the welding head. In addition, each component of the moving device is made of high-strength and low-deformation materials, such as steel, to ensure high precision even under high-speed movement and frequent use. The entire system is also equipped with dust-proof and lubrication devices to extend the service life of the equipment and reduce the maintenance frequency.

[0053] In this embodiment, the mobile device employs three independent driving devices, namely the first mobile stage, the second mobile stage, and the translation slide bar, which respectively control the movement in the X, Z, and Y axes, achieving precise three-dimensional positioning of the grinding mechanism. The first driving device is responsible for driving the first mobile stage to move along the X-axis direction on the substrate. This driving device consists of a high-precision servo motor, a reducer, and a ball screw. The servo motor provides rotational motion at a precise angle, the speed is reduced and the torque is increased through the reducer, and then the rotational motion is converted into linear motion through the ball screw. This transmission method features high precision, high rigidity, and low backlash, ensuring that the movement accuracy of the first mobile stage in the X-axis direction reaches the micron level. The second driving device is responsible for driving the second mobile stage to move along the Z-axis direction on the first mobile stage. The structure of this driving device is similar to that of the first driving device, also adopting the combination of a servo motor, a reducer, and a ball screw. However, since the Z-axis direction needs to overcome gravity, a motor with a larger power or a balancing device is selected to ensure the smoothness and precision of the up and down movement. This design enables the grinding mechanism to precisely adjust the distance from the surface of the welding head, thereby controlling the grinding depth. The third driving device is responsible for driving the translation slide bar to move along the Y-axis direction on the second mobile stage. Considering that the movement range in the Y-axis direction is relatively small, this driving device can adopt a cylinder, an electric push rod, or a synchronous belt drive system. Using a cylinder or an electric push rod can achieve rapid telescopic movements; using a synchronous belt drive can obtain higher positioning accuracy and a larger stroke. These three driving devices are all equipped with high-resolution encoders for real-time monitoring of the position information of each axis. The signals of the encoders are fed back to the control system to form a closed-loop control, ensuring the movement accuracy and position repeatability of each axis. At the same time, limit switches are set at the end of the stroke of each driving device to prevent damage caused by excessive movement of the mechanism. The control system can achieve the positioning of the grinding mechanism at any position in the three-dimensional space by coordinating the movements of these three driving devices. The system can automatically control the grinding mechanism to move along a specific path according to the preset grinding program to ensure comprehensive and uniform grinding of the surface of the welding head. In addition, to improve the reliability and service life of the system, all driving devices adopt a dust-proof design and are equipped with an automatic lubrication system. This not only protects the precision components from dust pollution but also reduces the workload of daily maintenance and improves the overall efficiency of the equipment. Through this multi-axis linkage driving design, the mobile device of the present utility model can achieve high-precision positioning and flexible movement of the grinding mechanism, providing a reliable technical guarantee for the precise grinding of the welding head.

[0054] To further improve the grinding effect, the control system can dynamically adjust the motion parameters of each axis according to the actual condition of the welding head. For example, by integrating a vision inspection system, the oxidation degree and flatness of the welding head surface can be monitored in real time, and then the position, pressure and speed of the grinding mechanism can be automatically adjusted to achieve intelligent and precise grinding. In addition, this multi-axis drive system can also achieve complex grinding paths. For example, spiral grinding, cross grinding or other specific mode grinding paths can be programmed to adapt to welding heads of different shapes and materials, improving the grinding efficiency and quality.

[0055] The first driving device x, the second driving device z, and the third driving device y of the present utility model are all motors, and this design has advantages in many aspects. First of all, the motor drive system has high precision, high response speed, and good controllability, and is very suitable for scenarios of precision positioning and continuous motion control. The motor used in the first driving device is responsible for the motion control in the X-axis direction. This is a high-precision servo motor, which can achieve a positioning accuracy of micron level when combined with a precision reducer and a ball screw. The characteristic of the servo motor is that it has closed-loop control and can adjust the output in real time according to the feedback information of the encoder to ensure the accuracy and repeatability of the motion. For applications that require frequent reciprocating motion in the X-axis, the low-inertia characteristic of the servo motor can ensure quick start and stop, improving the overall working efficiency. The motor used in the second driving device is responsible for the vertical motion in the Z-axis direction. Considering that the Z-axis needs to overcome gravity and support the weight of the grinding mechanism, a servo motor or a stepper motor with a relatively large power may be selected here. If a stepper motor is used, its advantage lies in having a relatively large holding torque, which can maintain the position even in the power-off state, and this is very beneficial for the motion control in the vertical direction. At the same time, the open-loop control characteristic of the stepper motor makes the system structure simpler. However, in some applications with extremely high precision requirements, a closed-loop stepper motor or a servo motor equipped with an encoder may still be selected. The motor of the third driving device is responsible for the motion in the Y-axis direction. Since the motion range in the Y-axis direction is relatively small, a servo motor or a stepper motor with a relatively small power can be selected here. If a synchronous belt drive is adopted, the rotation of the motor can be directly converted into the linear motion of the translation slide bar through the synchronous belt, and this transmission method has the characteristics of simple structure and stable transmission. All these motors are equipped with high-resolution encoders for accurately measuring the rotation angle and speed of the motors. This information is fed back to the control system to form a closed-loop control, ensuring the motion accuracy and position repeatability of each axis. For stepper motors, even in the open-loop control mode, the position can be verified through the encoder, improving the reliability of the system. The control system adopts an advanced multi-axis coordinated control algorithm, which can control the motion of the three motors simultaneously to achieve the complex trajectory motion of the grinding mechanism. The system also has overload protection, overcurrent protection, and overheat protection functions for the motors to ensure timely shutdown in case of abnormalities and protect the safety of the equipment. In order to improve the accuracy and service life of the system, all motors adopt a dust-proof design and are equipped with a heat dissipation system. This not only protects the motors from dust pollution but also ensures the stability during long-term operation. At the same time, the motor selection takes into account sufficient power margin to cope with possible load fluctuations and performance degradation caused by long-term use.

[0056] Embodiment 4:

[0057] The pressing motor of the utility model is fixedly installed on the auxiliary frame and connected to the moving body through a lead screw, achieving precise control of the moving body. This design provides a precisely controllable power source for the pressing operation during the welding process, ensuring the pressure accuracy during welding. The pressing motor uses a high-precision servo motor, which has excellent positioning accuracy and response speed. The selection of the servo motor takes into account the maximum pressure, moving speed, and the inertia of the entire system required during the welding process. A motor with sufficient power margin is selected to ensure stable performance under various working conditions. The lead screw drive mechanism uses a high-precision ball screw, which has the characteristics of low friction, high efficiency, and high precision. The ball screw can accurately convert the rotational motion of the motor into the linear motion of the moving body. The lead of the lead screw (i.e., the linear displacement of the nut when the lead screw rotates one circle) is selected according to the welding requirements to achieve a balance among pressure, precision, and speed. A smaller lead can provide higher pressure and more accurate positioning, but will reduce the moving speed; a larger lead can increase the moving speed, but may sacrifice some pressure and precision. To further improve the positioning accuracy, high-precision bearings are installed at both ends of the lead screw to reduce radial and axial runout. At the same time, a coupling or a reducer is installed between the lead screw and the pressing motor to eliminate the clearance during transmission and improve the system rigidity. The pressing motor and the lead screw drive system are equipped with high-resolution encoders for real-time monitoring of the position and speed of the moving body. This information is fed back to the control system to form a closed-loop control, ensuring the accuracy and repeatability of the pressing process. The control system can adjust the output of the motor in real time according to the feedback information of the encoder to compensate for possible mechanical errors or external disturbances. To protect the safety of the system and operators, limit switches are set at both ends of the stroke of the moving body. When the moving body approaches the stroke limit, the limit switch will be triggered, and the control system will immediately stop the motor operation to prevent mechanical collisions. In addition, the system is also equipped with an overload protection device, which automatically cuts off the power when the pressure exceeds the preset value to prevent damage to the workpiece or equipment due to excessive pressure.

[0058] Example Five:

[0059] The cross slide rail of the present utility model is a precise and stable linear guide rail structure, which includes three main components: a first rail, a second rail, and a sliding body. This design enables the moving body to perform precise linear movement in the up and down directions, preventing the upper welding head from tilting and ensuring the structural stability of the upper welding head during the downward pressing process. The first rail is fixedly installed on the auxiliary frame and serves as the basis for the entire cross slide rail system. When installing the first rail, its levelness and parallelism should be ensured to ensure the movement accuracy of the entire system. At this time, the moving body is installed on the second rail. When welding with the present utility model, the moving body is driven downward by a downward pressing motor to squeeze and fix the welding workpiece between the upper welding head and the lower welding head. Then, by inputting a large current, the welding workpiece is heated until the welding of the welding workpiece is completed. During the downward pressing process, due to the different placement positions of the welding workpiece, the moving body will be subjected to a lateral force (i.e., a force with an angle to the direction of the downward pressure). The lateral force received by the moving body will directly act on the cross slide rail. The cross guide rail of the present utility model has the performance of resisting lateral force to ensure the stability performance when the moving body is pressed downward. Specifically, the first rail and the second rail are made of high-strength and high-hardness alloy steel, and are precision machined and heat-treated to ensure their excellent straightness, parallelism, and load-bearing capacity.

[0060] The first rail and the second rail are symmetric structures with the same functions. The sliding body is installed between the first rail and the second rail. When the cross slide rail slides, the first rail slides relative to the second rail. The function of the sliding body is similar to the ball structure of a bearing, which is used to reduce the friction when the first rail and the second rail slide. At the same time, when the cross slide rail receives a lateral force, the sliding body can maintain the structural stability of the first rail and the second rail, prevent the displacement change of the first rail and the second rail, and ensure the stability during the process of the upper welding head pressing the welding workpiece. The sliding body is the core component of the entire cross slide rail system, and it forms a sliding fit with the first rail and the second rail. The sliding body is made of a material with high strength and low expansion coefficient, such as high-quality aluminum alloy or engineering plastic, to ensure high precision even under frequent use. The rolling element between the sliding body and the rail is a roller, which improves the lateral force resistance performance of the cross rail, reduces friction, and improves the smoothness and accuracy of movement. The roller can be made of high-strength steel or ceramic material to ensure good roundness and surface finish after long-term use.

[0061] The first rail of the present utility model is slidably connected to the second rail through a slider. The slider includes a slide plate and rollers. The slide plate is provided with slide holes, and there are multiple slide holes. The slide plate is the main structure of the slider, and the surface of the slide plate is precisely polished to reduce the sliding friction between the first rail and the second rail. The slide holes are key structures on the slide plate, and they are arranged in a straight line along the length direction of the slide plate. The rollers are the core components of the entire sliding system. The rollers are installed in the slide holes (specifically, they pass through the slide holes and are located within the slide holes. Since the thickness of the slide plate is relatively thin and the radius of the rollers is relatively large, the depth of the slide holes is equal to the thickness of the slide plate. When the rollers are installed in the slide holes, the rollers will protrude and act on the first rail and the second rail to form a cross slide rail), which plays a role in reducing friction and bearing loads. The rollers are made of high-strength bearing steel or ceramic materials, and these materials have excellent wear resistance and anti-deformation ability. The surface of each roller is ground with high precision to ensure its extremely high roundness and surface finish.

[0062] The most unique design lies in the cross arrangement of adjacent rollers (the meaning of a cross slide rail is the cross arrangement of adjacent rollers to improve the anti-lateral force performance of the slide rail). Specifically, the axes of two adjacent rollers are perpendicular to each other (not intersecting, perpendicular in space). This arrangement brings several significant advantages:

[0063] 1. Enhance anti-lateral force ability: The cross-arranged rollers can disperse and bear lateral forces in multiple directions, improving the rigidity and stability of the entire system. This is particularly important for the uneven pressures that may occur during the welding process.

[0064] 2. Improve motion accuracy: The cross-arranged rollers can more effectively limit the relative motion between the first rail and the second rail, reducing any possible wobbling or offset, thus ensuring the precise positioning of the upper welding head.

[0065] 3. Even force distribution: This arrangement allows the load to be more evenly distributed on all rollers, extending the service life of the rollers and the slide rails and reducing the maintenance requirements.

[0066] 4. Automatic adjustment ability: Under the action of force, the cross-arranged rollers can automatically adjust their positions to adapt to minor deformations or unevenness, ensuring the smoothness of the motion.

[0067] In addition, this design also takes into account the requirements of lubrication and dust prevention. An appropriate gap is left between the slide holes and the rollers, which can accommodate lubricating oil to ensure the lubrication effect during long-term operation.

[0068] This cross-rail design performs excellently in practical applications. When the moving body presses down during the welding process, even if the lateral force is generated due to the different placement positions of the welded workpieces, the cross-arranged rollers can effectively disperse and absorb these forces, maintaining the stability of the moving body. This ensures that the upper welding head always remains vertical during the pressing process without tilting or shifting, thus guaranteeing the consistency of welding quality.

[0069] Both the first rail and the second rail of the utility model are provided with V-shaped grooves, the angle of the V-shaped groove is 90 degrees, the roller has three surfaces, namely two end surfaces (the first end surface, the second end surface) at both ends and a cylindrical side surface on the side, the end surface and the side surface are perpendicular to each other, the V-shaped groove has two inclined surfaces (the first inclined surface, the second inclined surface), and the two inclined surfaces are perpendicular to each other.

[0070] When assembling the cross rails:

[0071] When the first end surface of the first ball contacts the first inclined surface of the first rail, the cylindrical side surface of the roller contacts the second inclined surface of the first rail and the first inclined surface of the second rail respectively, and the second end surface of the roller contacts the second inclined surface of the second rail;

[0072] At this time:

[0073] The first end surface of the next ball contacts the second inclined surface of the first rail, the cylindrical side surface of the roller contacts the first inclined surface of the first rail and the second inclined surface of the second rail respectively, and the second end surface of the roller contacts the first inclined surface of the second rail.

[0074] That is, the cross-arrangement mode of adjacent rollers. The rollers are assembled in this cross-arrangement mode to improve the anti-lateral force performance of the cross rails.

[0075] The 90-degree V-shaped groove can fit and install the rollers, ensuring that the two end surfaces (the first end surface, the second end surface) of the balls and the cylindrical side surface on the side can respectively fit with the two inclined surfaces of the V-shaped groove, maintaining high contact precision. At the same time, the two mutually perpendicular inclined surfaces can also form a stable support structure, which can effectively resist lateral forces.

[0076] The three surfaces of the roller (two end surfaces and a cylindrical side surface) enable the roller to form multi-point contact with the inclined surface of the V-shaped groove. This multi-point contact improves the stability and load-bearing capacity of the system. The design that the end surface and the side surface are perpendicular to each other ensures that the roller can maintain the correct position and direction in the V-shaped groove, preventing tilting or shifting.

[0077] This cross-arrangement mode brings many significant advantages:

[0078] 1. Improve the lateral force resistance performance: The cross arrangement enables each roller to provide support in multiple directions, enhancing the ability of the entire system to resist lateral forces. This is particularly important for the uneven pressures that may occur during the welding process.

[0079] 2. Uniform force distribution: The cross arrangement ensures that the load is evenly distributed among all the rollers, avoiding the situation where some rollers bear excessive pressure while others are underloaded.

[0080] 3. Improve the motion accuracy: Since each roller contacts different inclined surfaces of the two tracks, this structure effectively restricts any possible wobbling or deviation, ensuring high-precision motion.

[0081] 4. Enhance the system rigidity: The cross arrangement structure forms a highly stable support network, significantly enhancing the rigidity of the entire system. This enhanced rigidity not only improves the load-bearing capacity of the system but also ensures stability under high-speed motion or heavy loads.

[0082] 5. Adaptive ability: During the motion process, if there are minor deformations or unevenness, the cross-arranged rollers can automatically adjust their positions to adapt to these changes, ensuring smooth and precise motion.

[0083] 6. Improve the operation stability: The cross arrangement structure can effectively absorb and disperse the vibrations generated during the motion process, enabling the entire system to maintain higher stability during high-speed operation.

[0084] During the actual assembly process, technicians need to pay special attention to the correct placement of the rollers. Each roller must be accurately positioned according to the designed cross arrangement to ensure that its contact points with the V-grooves fully meet the design requirements.

[0085] To further improve the performance of the system, the contact surfaces of the rollers and the V-grooves are both precision machined and surface treated. The surface of the roller is ground and polished with high precision to obtain extremely high surface finish. The inclined surfaces of the V-grooves are also precision machined to ensure that their contact area with the rollers is minimized, thereby reducing friction and improving motion accuracy.

[0086] Example Six:

[0087] A dust-proof housing is fixedly installed on the frame of the utility model to isolate the dust generated when the grinding device grinds the welding head. The dust-proof housing covers the entire grinding area, effectively preventing the dust from spreading to the production workshop and keeping the working environment clean. The design of the housing takes into account the sealing performance and durability to ensure that it can still effectively isolate the dust during long-term use. There is a dust suction port on the dust-proof housing, which is a key part of the entire dust-proof system. The dust suction port is designed to connect to an external vacuum cleaner. Through the dust suction port, the external vacuum cleaner can timely suck away the dust accumulated in the dust-proof housing to prevent the dust from accumulating inside. This design not only prevents dust pollution but also facilitates daily maintenance and cleaning. The operator can regularly connect the vacuum cleaner through the dust suction port to remove the accumulated dust without frequently disassembling the dust-proof housing, improving work efficiency. The entire dust-proof system effectively protects other components of the equipment by isolating and timely removing the dust. Dust is a major enemy of precision machinery. If allowed to accumulate, it may cause accelerated wear of moving parts, decreased accuracy, and even cause malfunctions. By controlling the dust, the service life of the equipment can be significantly extended and the maintenance frequency can be reduced. At the same time, this design also protects the health of the operator. The fine particles generated during the grinding process may cause harm to the respiratory system if inhaled. Through the dust-proof housing and the dust suction system, the opportunity for the operator to come into contact with harmful dust is reduced. In addition, maintaining the cleanliness of the welding head surface is crucial for improving the welding quality. If the dust generated during grinding remains on the surface of the welding head, it may affect the welding effect. By timely removing the dust, the cleanliness of the welding head surface is ensured, which is beneficial to improving the welding precision and strength. Through this design, the automatic polymer diffusion welding equipment can not only complete high-quality welding work but also maintain a clean and safe working environment. This has a positive effect on improving production efficiency, ensuring product quality, and protecting the health of workers.

[0088] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0089] The above are only used to illustrate the technical solution of the present utility model rather than to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present should be covered within the scope of the claims of the present as long as they do not depart from the spirit and scope of the technical solution of the present.

Claims

1. An automatic polymer diffusion welding machine, comprising a frame and a welding device. The frame is equipped with a bearing platform and a secondary frame. The welding device includes an upper welding head and a lower welding head, and is characterized in that, The bearing platform fixedly installs a lower welding head and a grinding device. The grinding device includes a grinding mechanism and a moving device. The auxiliary frame is movably installed with a moving body through a cross slide rail, and the moving body fixedly installs an upper welding head.

2. The automatic polymer diffusion welding according to claim 1, characterized in that, The moving device includes a base plate, a first moving table, a second moving table, and a translation slide rod. The base plate is movably connected to the first moving table, the first moving table is movably connected to the second moving table, the second moving table is movably connected to the translation slide rod, and the translation slide rod fixedly installs the grinding mechanism.

3. An automatic polymer diffusion welding method according to claim 2, characterized in that, The base plate is drivingly connected to the first moving table through a first driving device, the first moving table is drivingly connected to the second moving table through a second driving device, and the second moving table is drivingly connected to the translation slide rod through a third driving device.

4. An automatic polymer diffusion welding according to claim 3, characterized in that The first driving device, the second driving device, and the third driving device are all motors.

5. An automatic polymer diffusion welding according to claim 1, characterized in that, The auxiliary frame fixedly installs a pressing motor, and the pressing motor is drivingly connected to the moving body through a lead screw.

6. An automatic polymer diffusion welding according to claim 1, characterized in that, The cross slide rail includes a first rail, a second rail, and a sliding body.

7. An automatic polymer diffusion welding according to claim 6, characterized in that, The first rail is slidably connected to the second rail through the sliding body. The sliding body includes a slide plate and rollers, and the slide plate is provided with a slide hole.

8. An automatic polymer diffusion welding according to claim 7, characterized in that, Both the first rail and the second rail are provided with V-shaped grooves.

9. An automatic polymer diffusion welding according to claim 8, characterized in that, The V-shaped groove of the first rail is movably connected to the V-shaped groove of the second rail through the rollers.

10. An automatic polymer diffusion welding according to claim 1, characterized in that, The frame fixedly installs a dust-proof housing, and the dust-proof housing is provided with a dust suction port.

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