A middle rail loading device and a slide rail laser welding machine

Abstract

The utility model relates to drawer slide rail processing equipment technical field more specifically, it relates to a middle rail feeding device and slide rail laser welding machine, including frame, conveyer belt, material blocking piece, pushing mechanism, the frame is provided with the welding station for middle rail and baffle piece welding, the conveyer belt is assembled on the frame and is used for conveying middle rail, the material blocking piece is assembled on the frame and is located the end in the advancing direction of conveyer belt, the pushing mechanism is assembled with the frame, the pushing mechanism is located above the material blocking piece and is used for pushing middle rail to the welding station, when middle rail moves to the material blocking piece, the pushing mechanism pushes middle rail and moves to the welding station, so that middle rail can keep consistent in initial position before being pushed into the welding station every time, provides stable benchmark for subsequent laser welding, helps to promote the welding position precision of middle rail.

Description

Technical Field

[0001] This utility model relates to the technical field of drawer slide rail processing equipment, and in particular to a middle rail feeding device and a slide rail laser welding machine. Background Technology

[0002] Concealed drawer slides are widely used in furniture drawers due to their aesthetic appeal and high space utilization. Among them, three-section drawer slides are the most common. They typically consist of an outer rail, a middle rail, and an inner rail, forming the core sliding structure. The relative sliding between the rails is achieved through sliding components, which are usually composed of ball bearings and rollers. This allows the drawer to be pulled out and pushed in smoothly. To improve the stability of the drawer under load, current technology generally adopts a reinforcement solution by adding a baffle to the middle rail. This baffle is welded to the bottom of the ball bearing between the middle rail and the inner rail. Through physical support, it effectively supports the ball bearing, thereby ensuring that the sliding components of the middle rail and the inner rail can slide stably and reducing the risk of abnormal sliding when the drawer is under load.

[0003] Currently, the baffle and the middle rail are mainly connected by resistance welding. First, the baffle is placed at the predetermined welding point on the middle rail. Then, pressure is applied and a strong current is passed through the electrodes of the resistance welding mechanism. Instantaneous fusion is achieved using Joule heat generated by the contact surface resistance. However, as a contact welding method, resistance welding has inherent drawbacks that become apparent in the connection of these precision components. On the one hand, the heat is highly concentrated and the temperature rises rapidly during welding, easily leading to localized thermal deformation in the welding area between the middle rail and the baffle. On the other hand, the mechanical pressing of the electrodes and the workpiece further exacerbates the risk of deformation. Furthermore, the middle rail, as an intermediate transition component of the slide rail, needs to simultaneously connect with the external... The inner and outer rails, connected by rolling elements, bear the primary load-bearing responsibility. Even minor deformations in the middle rail caused by welding affect its straightness and flatness, leading to two key issues: first, assembly precision issues – a deformed middle rail can interfere with the inner and outer rails during assembly, causing installation difficulties or uneven insertion; second, smooth sliding issues – deformation alters the precise geometry of the ball bearing raceway, disrupting the rolling trajectory, increasing sliding resistance, causing jamming, abnormal noise, and even accelerating wear on the balls and carriers, ultimately severely impacting drawer lifespan and user experience. Compared to resistance welding, laser welding uses a high-energy laser beam to weld workpieces, offering advantages such as a narrow heat-affected zone and minimal deformation. It is particularly suitable for welding small, precision parts like baffles. Furthermore, laser welding is a non-contact process, avoiding mechanical stress and helping to maintain the original shape and dimensional accuracy of the workpiece. Therefore, it is necessary to design a laser welding machine for the middle rail and baffles.

[0004] However, as a long strip of metal, the structural design of the feeding and conveying device of the middle rail directly affects the welding efficiency and quality. Since the specifications of the three-section concealed rails vary and the length of the middle rail has different requirements, the feeding device needs to be compatible. Therefore, it is necessary to design a middle rail feeding device and a sliding rail laser welding machine to solve the above problems. Utility Model Content

[0005] To achieve the feeding of the middle rail, this application provides a middle rail feeding device and a slide rail laser welding machine.

[0006] Firstly, the technical solution adopted by the present invention for a middle rail feeding device is as follows: A middle rail feeding device includes a base, a conveyor belt, a baffle, and a pushing mechanism. The base is provided with a welding station for welding the middle rail to the baffle. The conveyor belt is mounted on the base and is used to transport the middle rail. The baffle is mounted on the base and is located at the end of the conveyor belt in the forward direction. The pushing mechanism is mounted on the base and is located above the baffle and is used to push the middle rail to the welding station. When the middle rail moves to the baffle, the pushing mechanism pushes the middle rail to the welding station.

[0007] Preferably, the top wall of the baffle is set at the same height as the top wall of the conveyor belt, and the baffle has a vertically protruding baffle portion on the side away from the conveyor belt.

[0008] Preferably, the device further includes a transition member connected to the longitudinal sidewall of the baffle and located between the baffle and the conveyor belt. The transition member has an arc-shaped portion at one end facing the conveyor belt that is adapted to the conveyor belt.

[0009] Preferably, it further includes a guide member, which is assembled at one end of the stop member near the welding station, and the guide member is recessed from top to bottom to provide a guide space that matches the shape of the middle rail.

[0010] Preferably, the pushing mechanism includes a pushing component and a pushing bracket. The pushing bracket is mounted on the machine base. The pushing component is slidably mounted to the pushing bracket and moves back and forth along the lateral side of the pushing bracket. The pushing component is used to push the lateral end face of the middle rail.

[0011] Preferably, the pushing mechanism further includes a pushing screw, a pushing screw slider, a pushing screw motor, and a pushing transverse block. The pushing screw is rotatably assembled with the pushing bracket. The pushing screw motor is connected to the pushing bracket and is used to rotate the pushing screw. The pushing screw slider is threadedly connected to the pushing screw. The pushing transverse block is connected to the pushing screw slider. The pushing transverse block is connected to the pushing bracket via a slide rail slider. The pushing component is assembled with the pushing transverse block.

[0012] Preferably, the pushing mechanism further includes a vertical pushing cylinder and a vertical pushing block. The vertical pushing block and the horizontal pushing block are slidably connected by a slide rail slider. The vertical pushing cylinder is connected to the horizontal pushing block and is used to push the vertical pushing block to move back and forth vertically. The pushing component is connected to the vertical pushing block.

[0013] Preferably, the system includes a guide bar, a guide rod, an adjusting bar, an adjusting slide, and a linear bearing with a clamping handle. Two sets of guide bars are provided and connected to the top of each of the transverse ends of the conveyor belt. The guide rod is connected between the two sets of guide bars. The adjusting slide is slidably assembled with the guide rod via the linear bearing. The adjusting bar is connected to the adjusting slide and located on the top wall of the conveyor belt. When the adjusting slide moves axially along the guide rod, the transverse distance between the adjusting bar and the guide bar changes to accommodate center rails of different lengths.

[0014] Preferably, the pushing mechanism further includes a key bar, a mounting block, a pushing position sensor, and a sensing block. The key bar is connected to the top wall of the pushing bracket and is arranged parallel to the axis of the pushing screw. The sensing block is connected to the pushing transverse block. The mounting block is slidably assembled with the key bar and fixed by a set screw. The pushing position sensor is connected to the mounting block and is used to sense the sensing block.

[0015] Secondly, the sliding rail laser welding machine provided by this utility model adopts the following technical solution: A sliding rail laser welding machine includes a baffle feeding device for feeding baffles, a welding device for laser welding a middle rail and baffles, and the aforementioned middle rail feeding device. The baffle feeding device is mounted on the machine base and located on one longitudinal side of the welding station, and the welding device is mounted on the machine base and located on the other longitudinal side of the welding station.

[0016] The beneficial effects of this utility model are as follows: The conveyor belt automatically transports the center rail from the loading end to the positioning point in the stop, achieving automated continuous feeding and seamlessly connecting with the subsequent laser welding process. This reduces equipment waiting time and makes the entire welding process more rhythmic and efficient, suitable for mass production. Secondly, the stop, as the end point of the conveyor belt, provides precise and consistent physical limits for the center rail, ensuring that its initial position remains consistent before each push into the welding station. This provides a stable benchmark for subsequent laser welding and helps improve the welding position accuracy of the center rail. Furthermore, the conveyor belt transports materials along the longitudinal direction of the machine base, and the pushing mechanism pushes materials along the longitudinal direction of the machine base, effectively utilizing the machine base space and optimizing the structural layout.

[0017] By loosening the linear bearing with the clamping handle, the adjusting bar can move along the axis of the guide rod, thereby changing the distance between the adjusting bar and the guide bar to adapt to different lengths of center rails. After adjustment, the linear bearing with the clamping handle is locked to fix the distance between the adjusting bar and the guide bar, improving the compatibility of feeding center rails of different lengths. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the concealed slide rail in the embodiments of this application; Figure 2 This is a front perspective view of the slide rail laser welding machine in the embodiments of this application; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a rear-view perspective view of the slide rail laser welding machine in the embodiments of this application; Figure 5 This is a perspective view of the baffle feeding in Embodiment 1 of this application; Figure 6 yes Figure 5 A magnified view of a section at point B in the middle; Figure 7 This is a partial front view in an embodiment of this application; Figure 8 This is a partial perspective view of an embodiment of this application; Figure 9 This is a perspective view of the baffle feeding in embodiment 2 of this application; Figure 10 yes Figure 9 A magnified view of a section at point C; Figure 11 This is a schematic diagram of the baffle feeding structure in Embodiment 2 of this application; Figure 12 This is a rear perspective view of the welding apparatus in Embodiment 3 of this application; Figure 13This is a front perspective view of the welding apparatus in Embodiment 3 of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Machine base; 101. Center rail; 102. Baffle plate; 201. Conveyor belt; 2011. Guide bar; 2012. Guide rod; 2013. Adjusting bar; 2014. Adjusting slide; 2015. Linear bearing; 211. Transition piece; 2111. Arc section; 221. Stopper piece; 2211. Stopper section; 2212. Through hole; 231. Guide piece; 2311. Guide space; 3. Pushing mechanism; 301. Pushing piece; 302. Pushing bracket; 303. Pushing screw; 304. Pushing screw slider; 305. Pushing screw motor; 306. Pushing... 307. Horizontal moving block; 308. Horizontal pushing slide rail; 311. Vertical pushing cylinder; 312. Vertical pushing block; 313. Vertical pushing slide rail; 314. Vertical pushing slider; 321. Key bar; 322. Mounting block; 323. Pushing position sensor; 325. Reset position sensor; 4. Vibratory feeder; 401. Baffle plate channel; 402. Straight vibrator; 501. Feeding component; 5011. Sliding part; 5012. Feeding cylinder; 511. Baffle plate seat; 5111. Slide groove; 5112. Sliding groove; 5113. Feeding hole; 5114. Baffle plate groove; 6 601. Clamping mechanism; 602. Clamping bracket; 603. Clamping jaw; 604. Clamping screw; 605. Clamping screw slider; 606. Clamping screw motor; 617. Clamping longitudinal movement block; 628. Clamping vertical movement cylinder; 629. Clamping vertical movement block; 620. Clamping vertical movement slide rail; 621. Clamping vertical movement slider; 702. Limiting component; 7011. Limiting groove; 7012. Longitudinal positioning groove; 711. End positioning component; 7111. End positioning cylinder; 7112. Positioning groove; 721. Longitudinal positioning component 7211, Longitudinal positioning cylinder; 731, Material feeding slide; 8, Laser welding mechanism; 801, Laser welding gun; 802, Welding bracket; 803, Welding screw; 804, Welding screw slider; 805, Welding screw motor; 807, Welding transverse slide rail; 808, Welding transverse slider; 811, Square bar; 812, Assembly block; 813, Welding position sensor; 814, Sensing plate; 9, Adjustment mechanism; 901, Fixed bracket; 902, Adjusting bracket; 903, Rotating shaft; 904, Adjusting block; 905, Adjusting screw; 906, Adjusting nut; 907, Clamping block. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0021] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0022] In the description of this application, where directional descriptions are involved, the directions or positional relationships indicated by "horizontal," "longitudinal," "vertical," etc., are based on the appendix. Figure 2 The orientation or positional relationship shown is represented by the X-axis (horizontal), Y-axis (vertical), and Z-axis (vertical).

[0023] In the description of this application, the term "several" means one or more, and "more than" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0024] Furthermore, unless otherwise defined, the technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and not for limiting the application. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0025] Example 1: As Figure 1-6As shown, a middle rail 101 feeding device includes a base 1, a conveyor belt 201, a stopper 221, and a pushing mechanism 3. The base 1 is provided with a welding station for welding the middle rail 101 and the stopper 102. The conveyor belt 201 is mounted on the base 1 and is used to transport the middle rail 101. The stopper 221 is mounted on the base 1 and is located at the end of the conveyor belt 201 in the forward direction, and is used to position and stop the middle rail 101 of the conveyor belt 201. The pushing mechanism 3 is mounted on the base 1 and is located above the stopper 221 and is used to push the middle rail 101 along its length to the welding station. When the middle rail 101 moves to the stopper, the pushing mechanism 3 pushes the middle rail 101 to the welding station.

[0026] During operation, the middle rail 101 with its opening facing upward is placed sequentially at the end of the conveyor belt 201 away from the stop 221, i.e., the feeding end of the conveyor belt 201. Driven by the conveyor belt 201, the middle rail 101 moves toward the stop 221. The stop 221 blocks and positions the middle rail 101. Then, the pushing mechanism 3 pushes the middle rail 101 located in the stop 221 to the welding station, thereby completing the feeding of the middle rail 101. It should be noted that since the baffle 102 is welded to the surface of the middle rail 101 with its opening facing upward, the feeding direction of the middle rail 101 is unified. The conveyor belt 201 automatically transports the center rail 101 from the loading end to the positioning point in the stop 221, realizing automated continuous feeding and connecting with the subsequent laser welding process. This reduces equipment waiting time and makes the entire welding process more rhythmic and efficient, suitable for mass production. Secondly, the stop 221, as the end point of the conveyor belt 201, provides precise and consistent physical limits for the center rail 101, ensuring that the initial position of the center rail 101 remains consistent before each push into the welding station. This provides a stable reference for subsequent laser welding and helps improve the welding position accuracy of the center rail 101. Furthermore, the conveyor belt 201 transports materials along the longitudinal direction of the machine base 1, and the pushing mechanism 3 pushes materials along the longitudinal direction of the machine base 1, effectively utilizing the space of the machine base 1 and optimizing the structural layout.

[0027] Regarding the specific structural design of the baffle 221, the top wall of the baffle 221 is set at the same height as the top wall of the conveyor belt 201. That is, the vertical distance between the top wall of the baffle and the base 1 is equal to the vertical distance between the top wall of the conveyor belt 201 and the base 1. The side of the baffle away from the conveyor belt 201 has a vertically protruding baffle part 2211, which makes the baffle have an L-shaped longitudinal section. When the middle rail 101 moves forward under the push of the conveyor belt 201, it can smoothly slide onto the top wall of the baffle 221, improving the smoothness of the feeding process of the middle rail 101. The L-shaped baffle 221 provides vertical obstruction and horizontal support. When the conveyor belt 201 delivers the middle rail 101 to the end point, the side wall of the middle rail 101 is blocked by the baffle part 2211, and its main body is supported by the top wall of the baffle 221, so that the middle rail 101 maintains a stable posture while waiting to be pushed into the welding station.

[0028] The baffle 2211 has a through hole 2212 along its longitudinal direction. A sensor is installed in the through hole 2212 to sense whether the middle rail 101 is located in the baffle 221. The sensor is electrically connected to the processor to input the position signal of the middle rail 101 to the processor so that the processor can process and issue control commands to the actuator.

[0029] Since the end of the conveyor belt 201 is arc-shaped, while the stop member 221 has an L-shaped structure, a gap exists between the stop member 221 and the conveyor belt 201. To improve the smoothness of the conveyor belt 201 moving to the stop member, this embodiment also includes a transition member 211. The transition member 211 is connected to the longitudinal side wall of the stop member 221. The top wall of the transition member 211 is on the same plane as the top wall of the stop member 221, and the transition member 211 is located between the stop member 221 and the conveyor belt 201. The end of the transition member 211 facing the conveyor belt 201 has an arc portion 2111 adapted to the conveyor belt 201. The transition member 211 passes through... Its top wall is flush with the top wall of the retainer 221, and its end arc 2111 matches the contour of the conveyor belt 201, bridging the gap between the conveyor belt 201 and the retainer 221, forming a continuous and smooth transition plane, so that the middle rail 101 can smoothly slide from the conveyor belt 201 onto the retainer 221. Since there are multiple sets of side-by-side middle rails 101 on the conveyor belt 201, the middle rails 101 can push each other under the drive of the conveyor belt 201, so that the middle rail 101 in front can be pushed by the middle rail 101 located on the moving conveyor belt 201, so that the transition piece 211 in the middle rail 101 moves onto the retainer 221.

[0030] When the pushing mechanism 3 pushes the middle rail 101 on the stop 221, the bottom wall of the middle rail 101 fits against the top wall of the stop 221 and slides along the top wall of the stop 221. To improve the positional accuracy of the middle rail 101 when it slides out of the stop 221 and into the welding station, this embodiment also includes a guide 231. The guide 231 is assembled at the end of the stop 221 near the welding station. The guide 231 is recessed from top to bottom and has a guide space 2311 that matches the shape of the middle rail 101. The bottom wall of the guide space 2311 is at the same level as the top of the stop 221. On a horizontal plane, when the pushing mechanism 3 pushes the middle rail 101 forward, the middle rail 101 slides from the stop 221 into the guide space 2311. The guide space 2311 guides and aligns the shape of the middle rail 101, reducing the deviation of the middle rail 101 during the process of sliding into the welding station, improving the straightness of the pushing direction of the middle rail 101, and helping to improve the consistency of the welding position of the middle rail 101. Secondly, the guide 231 is assembled with the stop 221, and the corresponding guide 231 can be replaced according to the different shapes and specifications of the middle rail 101, thereby improving the compatibility of the feeding device.

[0031] Regarding the specific structure of the pushing mechanism 3, the pushing mechanism 3 includes a pushing component 301 and a pushing bracket 302. The pushing bracket 302 is mounted on the machine base 1. The pushing component 301 is slidably mounted with the pushing bracket 302 and moves back and forth along the lateral side of the pushing bracket 302. The pushing component 301 is used to push the lateral end face of the middle rail 101.

[0032] Regarding the specific structure of the sliding assembly between the pusher component 301 and the pusher bracket 302, the pusher mechanism 3 further includes a pusher screw 303, a pusher screw slider 304, a pusher screw motor 305, a pusher transverse block 306, a pusher transverse slide rail 307, and a pusher transverse slider 308. The pusher screw 303 is rotatably assembled with the pusher bracket 302. The pusher screw motor 305 is connected to the pusher bracket 302 and is used to rotate the pusher screw 303. Specifically, the fixed end of the pusher screw motor 305 is connected to the pusher bracket 302, the rotating end of the motor of the pusher screw 303 is shaft-connected to the pusher screw 303, the pusher screw slider 304 is threadedly connected to the pusher screw 303, and the pusher transverse block 306 is connected to the pusher screw slider 304. The pusher bracket 302 is connected to the pusher bracket 306 via a slide rail slider. Specifically, the pusher transverse slide rail 307 is parallel to the axis of the pusher screw 303 and is located above the pusher screw 303. The pusher transverse slide rail 307 is connected to the pusher bracket 302. One end of the pusher transverse slide rail 307 is connected to the pusher transverse block 306. The other end of the pusher transverse slider 308 is slidably assembled with the pusher transverse slide rail 307. The pusher component 301 is assembled with the pusher transverse block 306. The pusher screw motor 305 rotates, driving the pusher screw 303 to rotate, thereby causing the pusher transverse block 306 to move back and forth along the axis of the pusher screw 303, thereby driving the pusher component 301 to move back and forth to push the middle rail 101 located on the stop component 221 laterally.

[0033] When the pusher 301 pushes the middle rail 101 on the stop 221 to the welding station, the moving conveyor belt 201 continuously pushes the middle rail 101 toward the stop 221. This means that once the middle rail 101 on the stop 221 is pushed away by the pusher 301, the middle rail 101 on the conveyor belt 201 will move back into the stop 221. If the pusher 301, after completing the push, continues to return along the axis of the pusher screw 303, it will interfere with the subsequently added middle rail 101. Therefore, to... To solve the above-mentioned technical problems, the pushing mechanism 3 also includes a pushing vertical movement cylinder 311, a pushing vertical movement block 312, a pushing vertical movement slide rail 313, and a pushing vertical movement slider 314. The pushing vertical movement block 312 and the pushing horizontal movement block 306 are slidably connected through the slide rail and slider. Specifically, the pushing vertical movement slide rail 313 is connected to the pushing horizontal movement block 306, one end of the pushing vertical movement slider 314 is connected to the pushing vertical movement block 312, and the other end of the pushing vertical movement slide rail 313 is slidably assembled with the pushing vertical movement slide rail 313. The pushing vertical movement cylinder 311 and the pushing horizontal movement block 314 are connected to the pushing vertical movement block 312. The pusher cylinder 311 is connected to the pusher horizontal block 306 and used to push the pusher vertical slider 312 to move vertically back and forth. Specifically, the fixed end of the pusher vertical cylinder 311 is connected to the pusher horizontal block 306, and the pushing end of the pusher vertical cylinder 311 is connected to the pusher vertical block 312. The pusher component 301 is connected to the pusher vertical block 312. When the pusher screw motor 305 drives the pusher component 301 to move to the end of the middle rail 101 away from the welding station, the pusher vertical cylinder 311 pushes out, causing the pusher component 301 to move downward. Then, the pusher screw motor 305 rotates, moving the middle rail 101... 01. Push into the welding station. Then, the vertical moving cylinder 311 resets, causing the pusher 301 to move upward. Then, the pusher screw motor 305 rotates, driving the pusher 301 to reset. The pusher 301 is driven by the vertical moving cylinder 311 to move upward before returning, so that it avoids the subsequently replaced middle rail 101 on the horizontal return path, reducing the risk of mechanical interference. This allows the pusher mechanism 3 to return to the starting point without obstruction, preparing for the next push, improving the continuity of continuous automated welding, and helping to improve the overall operating efficiency of the machine.

[0034] To achieve stable conveying of center rails 101 of different lengths by the conveyor belt 201, this embodiment also includes guide bars 2011, guide rods 2012, adjusting bars 2013, adjusting slides 2014, and linear bearings 2015 with clamping handles. Two sets of guide bars 2011 are provided and connected to the top of both transverse ends of the conveyor belt 201. The guide rods 2012 are connected between the two sets of guide bars 2011. The adjusting slides 2014 are slidably assembled with the guide rods 2012 via the linear bearings 2015. The adjusting bars 2013 are connected to the adjusting slides 2014 and located on the top wall of the conveyor belt 201. When the adjusting slide 2014 moves along the axial direction of the guide rod 2012, the lateral distance between the adjusting strip 2013 and the guide strip 2011 changes to adapt to the different lengths of the center rail 101. By loosening the linear bearing 2015 with the clamping handle, the adjusting strip 2013 can move along the axis of the guide rod 2012, thereby changing the distance between the adjusting strip 2013 and the guide strip 2011 to adapt to the different lengths of the center rail 101. After the adjustment is completed, the linear bearing 2015 with the clamping handle is locked to fix the distance between the adjusting strip 2013 and the guide strip 2011.

[0035] To accommodate the feeding requirements of different lengths of the center rail 101, the feeding mechanism 3 also includes a square key bar 321, a mounting block 322, a feeding position sensor 323, and a sensing block. The key bar 321 is connected to the top wall of the feeding bracket 302 and is arranged parallel to the axis of the feeding screw 303. The sensing block is connected to the feeding transverse block 306. The mounting block 322 is slidably assembled with the key bar 321 and fixed by a set screw. The feeding position sensor 323 is connected to the mounting block 322 and is used to sense the sensing block. The feeding position sensor 323 is electrically connected to the processor and is used to input the feeding component 3 to the processor. The pusher position signal 01 is connected to the pusher screw motor 305 via an electrical connection. This signal controls the start and stop of the pusher screw motor 305. By sliding the mounting block 322 and the square key bar 321 together and fixing them with set screws, the position of the pusher position sensor 323 can be adjusted according to the length of different center rails 101, allowing the end position of the pusher 301 to be set quickly. Combined with the adjustment of the distance between the adjusting bar 2013 and the guide bar 2011, the versatility of the feeding device is improved, enabling it to flexibly meet the production needs of multiple varieties and small batches, and reducing tooling costs.

[0036] It also includes a reset position sensor 325. The mounting block 322 is provided with two sets, one set is connected to the pusher position sensor 323, and the other set is connected to the reset position sensor 325. The reset position sensor 325 is electrically connected to the processor and is used to input the reset position signal of the pusher component 301 of the processor. By adjusting the position of the reset position sensor 325, the reset start position of the pusher component 301 is controlled to match the pusher requirements of the middle rail 101 of different lengths.

[0037] Example 2: As Figure 1-4 , Figure 7-11 As shown, a baffle plate 102 feeding device includes a base 1, a vibratory feeder 4, a feeding component 501, and a clamping mechanism 6. The base 1 is provided with a welding station for welding the middle rail 101 and the baffle plate 102, a unloading station for discharging the baffle plate 102, and a material picking station for clamping and feeding the baffle plate 102. The vibratory feeder 4 is mounted on the base 1 and is used for sorting and conveying the baffle plate 102. The discharge end of the vibratory feeder 4 is connected to the unloading station. The feeding component 501 is used to move the baffle plate 102 from the unloading station to the material picking station. The clamping mechanism 6 is mounted on the base 1 and is located above the material picking station and is used to clamp and transport the baffle plate 102 on the material picking station to the welding station.

[0038] During operation, the baffle 102 is sorted by the vibratory feeder 4 and moved from the discharge end of the vibratory feeder 4 to the unloading station. The feeding component 501 moves the baffle 102 on the unloading station to the picking station. After the clamping mechanism 6 picks up the material from the picking station, it is transported to the welding station, thereby completing the feeding of the baffle 102. This allows the thin baffle 102 to be placed at the predetermined welding position on the surface of the middle rail 101, realizing the automatic sorting, conveying, gripping and positioning of the baffle 102, providing an assembly foundation for subsequent laser welding.

[0039] To simplify the movement path of the baffle 102, the welding station, unloading station, and unloading station are located on the same longitudinal straight line of the machine base 1. This linear layout allows the baffle 102 to move in a straight line from unloading to unloading and welding. The feeding component 501 pushes the baffle 102 from the unloading station to the unloading station along the longitudinal direction of the machine base 1, making the movement of the baffle 102 direct and efficient. This directly improves the production cycle and overall efficiency of the equipment, enhances the positional stability of the baffle 102 during movement and placement, and provides a guarantee for subsequent laser welding.

[0040] To improve the stability of the movement of the feeding component 501, this embodiment also includes a baffle seat 511. The baffle seat 511 is mounted on the machine base 1. The baffle seat 511 has a sliding groove 5111 for sliding assembly with the feeding component 501. The sliding groove 5111 of the baffle seat 511 provides a sliding channel for the feeding component 501, so that the feeding component 501 slides along a preset path, which helps to improve the consistency of the position of the baffle 102 from the loading station to the unloading station.

[0041] Furthermore, the transverse sidewall of the feeder 501 has a protruding sliding portion 5011 for limiting movement, and the sidewall of the slide groove 5111 has a recessed sliding groove 5112. The sliding portion 5011 slides in the sliding groove 5112. The cooperation between the sliding portion 5011 and the sliding groove 5112 limits the vertical movement of the feeder 501, thereby improving the accuracy of the movement of the baffle 102.

[0042] Regarding the specific structure of the movement of the baffle 102 from the vibratory feeder 4 to the baffle seat 511, this embodiment also includes a baffle material channel 401 for conveying the baffle 102. The side wall of the baffle seat 511 is provided with a feeding hole 5113 that connects to the sliding groove 5111. The feeding hole 5113 is correspondingly provided to the feeding station and is adapted to the shape of the baffle 102. The baffle material channel 401 connects the discharge end of the vibratory feeder 4 and the feeding hole 5113, and is used to convey the baffle 102 after it has been sorted by the vibratory feeder 4 through the feeding hole. 5113 is fed to the feeding component 501, and then the feeding component 501 transports the baffle 102 to the picking station, directly and continuously conveying the baffle 102 arranged by the vibrating plate 4 to the loading hole 5113 of the baffle seat 511, improving the continuity of the movement of the baffle 102 to the loading station. The loading hole 5113 is adapted to the shape of the baffle 102, allowing one baffle 102 to pass through, reducing the direction of quality abnormalities caused by multiple stacked baffles 102 entering the welding station at the same time, and improving the stability and reliability of the baffle 102 loading.

[0043] To improve the smooth entry of the baffles 102 on the baffle material channel 401 into the feeding station, this embodiment also includes a vertical vibrator 402. The vertical vibrator 402 is mounted on the machine base 1 and located below the material channel. The baffle material channel 401 receives the baffles 102 that have been oriented and arranged from the vibrating plate 4. The vertical vibrator 402 is used to smoothly transport the baffles 102 on the baffle material channel 401 to the feeding station. The vertical vibrator 402 provides a continuous and forward force to the baffles 102 on the baffle material channel 401 through high-frequency micro-amplitude vibration, ensuring that the baffles 102 move smoothly one after another towards the feeding hole 5113 and cooperate with the feeding hole 5113 to reduce the possibility of baffles 102 stacking and realize the continuous and stable conveying of a single baffle 102.

[0044] To improve the stability of the feeding component 501 in moving relative to the baffle 102, this embodiment further includes a feeding cylinder 5012 in terms of the specific structure of the feeding component 501. The feeding cylinder 5012 is mounted on the machine base 1 and is used to push the feeding component 501 to move back and forth along the longitudinal direction of the machine base 1. Specifically, the fixed end of the feeding cylinder 5012 is connected to the machine base 1, and the movable end of the feeding cylinder 5012 is connected to the feeding component 501. The feeding component 501 has a recessed area from top to bottom for placing the baffle 102. When the feeding component 501 is at the loading station, the placement groove is connected to the loading hole 5113, allowing the baffle on the material channel to slide into the placement groove after passing through the loading hole 5113. This enables the feeding component 501 to convey the baffle 102. The placement groove provides space for the baffle 102. After the baffle 102 falls from the loading hole 5113, it moves to the bottom wall of the placement groove, where the inner wall of the placement groove positions it horizontally, contributing to the stability of the feeding component 501's conveying of the baffle 102. Notably, the bottom wall of the loading hole 5113 and the bottom wall of the placement groove are on the same plane, allowing the baffle 102 to slide smoothly from the loading hole 5113 into the placement groove.

[0045] To ensure that the clamping mechanism 6 can clamp both lateral ends of the baffle 102 when it is moved from the placement slot to the picking station by the feeder 501, a portion of the baffle 102 needs to be exposed beyond the lateral sidewall of the placement slot. To ensure the stability of the sliding fit between the feeder block and the baffle seat 511, the mating area of ​​the groove 5111 between the feeder block and the baffle seat 511 needs to be as large as possible. Therefore, to solve the above technical problem, baffle grooves 5114 are provided on both lateral sidewalls of the groove 5111. The lateral distance between the inner sidewalls of the two sets of baffle grooves 5114 is adapted to the lateral length of the baffle 102. It should be noted that, in order for the baffle grooves 5114 to function as a centering and aligning element for the baffle 102, the distance between the two sets of baffle grooves 5114 is equal to the lateral length of the baffle 102. However, considering the possibility of machining errors in practical applications, the distance between the two sets of baffle grooves is... The lateral depths of the slots 5114 are equal, and the distance between the two sets of slots 5114 is greater than 1-2 mm of the lateral length of the baffle 102. The set of slots 5114 near the feed channel is connected to the feed hole 5113. By opening slots 5114 on both sides of the slide 5111, sliding space is provided for the exposed baffle 102 to avoid collision. This allows the feed block to maintain a large area of ​​contact with the slide 5111 to obtain high stability, while also allowing the two lateral ends of the baffle 102 to be exposed on the feed block when the baffle 102 reaches the picking position. This provides the necessary operating space for the gripper 602 of the clamping mechanism 6. Secondly, the lateral distance between the inner sidewalls of the two sets of slots 5114 is adapted to the length of the baffle 102. When the baffle 102 moves with the feed block in the slide 5111, the two ends of the baffle 102 will slide in the two slots 5114. This allows the inner wall of the baffle groove 5114 to perform secondary lateral limiting and centering of the baffle 102, ensuring that the baffle 102 remains in the same position when it reaches the material picking station, further improving the repeatability of the clamping position.

[0046] The material picking station is located on the longitudinal outer side of the baffle groove 5114, so that the baffle 102 leaves the baffle groove 5114 when it is in the material picking station, which makes it easier for the clamping mechanism 6 to clamp the baffle 102.

[0047] The feeding component 501 slides and feeds the baffle 102. To improve the longitudinal position of the baffle 102 when it reaches the picking station, the baffle 102 continues to move forward due to inertia while moving longitudinally along the machine base 1, causing a shift in its longitudinal position. In this embodiment, a positioning block is also included. The positioning block is mounted on the machine base 1. When the feeding component 501 moves to the picking station, the baffle on the feeding component 501 contacts the positioning block. The positioning block can block the forward movement of the baffle 102, ensuring that the baffle 102 stops at a preset longitudinal position each time for the clamping mechanism 6 to clamp, reducing the positional deviation of the baffle 102 and improving the consistency of the feeding. Of course, to buffer the baffle 102, a silicone buffer layer is provided on the side of the positioning block near the baffle 102.

[0048] Since the baffle 102 is thin, in order to improve the stability of the clamping mechanism 6 in clamping the baffle 102, the clamping mechanism 6 includes a clamping bracket 601, a jaw 602, and a clamping cylinder 603. The clamping bracket 601 is mounted on the machine base 1. The jaw 602 is slidably mounted with the clamping bracket 601 and moves back and forth along the longitudinal direction of the clamping bracket 601, thereby sliding the baffle 102 back and forth between the material picking station and the welding station. The jaw 602 is provided in two sets and is located on the transverse sides of the baffle 102 respectively. At the end, the lateral sidewall of the gripper 602 is provided with a gripping groove 6021. The gripping cylinder 603 is used to drive the two sets of grippers 602. When the gripping cylinder 603 is in the clamping state, the two lateral ends of the baffle 102 are respectively located in the gripping grooves 6021 of the two sets of grippers 602. For the thin baffle 102, the inner wall of the gripping groove 6021 matches the shape of the end of the baffle 102, so that the clamping force is evenly distributed on the contact surface, effectively improving the stability and reliability of the baffle 102 during the transfer process.

[0049] During resistance welding of the baffle 102 and the middle rail 101, to ensure welding quality, the position of the baffle 102 on the middle rail 101 needs to be maintained. Specifically, the clamp 602 needs to hold the baffle 102 against the middle rail 101 until welding is complete. The baffle 102 is clamped in the clamping groove 6021 of the clamp 602, resulting in a height difference between the bottom surface of the baffle 102 and the bottom surface of the clamp 602. However, the opening of the middle rail 101 faces upwards. Therefore, through structural design of the clamp 602, the bottom surface of the baffle 102 can be made to fit against the top surface of the middle rail 101. Regarding the specific structure of the gripper 602, the gripper 602 has a longitudinally protruding gripping part 6022, and a gripping groove 6021 is located in the gripping part 6022. The longitudinal width of the gripping part 6022 is smaller than the longitudinal width of the opening of the middle rail 101. By making the longitudinal width of the gripping part 6022 smaller than the width of the opening of the middle rail 101, when the gripper 602 descends to the position, the protruding gripping part 6022 can move into the opening of the middle rail 101, so that the bottom surface of the baffle 102 held by the gripper 602 can contact the upper surface of the middle rail 101, which helps to improve the welding quality.

[0050] To enable the gripper 602 to move vertically, thereby picking up the baffle 102 from the material handling station and moving it to the welding station to fit against the central rail 101, the gripping mechanism 6 further includes a gripping screw 604, a gripping screw slider 605, a gripping screw motor 606, a gripping longitudinal transfer block 611, a gripping longitudinal transfer rail, and a gripping longitudinal transfer slider in terms of the specific structure of the longitudinal and vertical movement of the gripper 602. The gripping screw 604 is rotatably assembled with the gripping bracket 601, and the gripping screw motor 606 is connected to the gripping bracket 601 and used to rotate the gripping screw 604. Specifically, the fixed end of the gripping screw motor 606 is connected to the gripping bracket 601, the rotating end of the motor of the gripping screw 604 is shaft-connected to the gripping screw 604, and the gripping screw slider 605 is threaded to the gripping screw 604. The clamping longitudinal transfer block 611 is connected to the clamping screw slider 605. The clamping longitudinal transfer block 611 is connected to the clamping bracket 601 via a slide rail slider. Specifically, the clamping longitudinal transfer slide rail is parallel to the axis of the clamping screw 604 and is located above the clamping screw 604. The clamping longitudinal transfer slide rail is connected to the clamping bracket 601. One end of the clamping longitudinal transfer slide rail is connected to the clamping longitudinal transfer block 611. The other end of the clamping longitudinal transfer slider is slidably assembled with the clamping longitudinal transfer slide rail. The gripper 602 is assembled with the clamping longitudinal transfer block 611. The clamping screw motor 606 rotates, driving the clamping screw 604 to rotate, thereby causing the clamping transverse transfer block to move back and forth along the axis of the clamping screw 604, thereby driving the gripper 602 to move back and forth to clamp the baffle 102 located at the material picking station and push it longitudinally.

[0051] The clamping mechanism 6 further includes a clamping vertical movement cylinder 621, a clamping vertical movement block 622, a clamping vertical movement slide rail 623, and a clamping vertical movement slider 624. The clamping vertical movement block 622 and the clamping longitudinal movement block 611 are slidably connected via the slide rail and slider. Specifically, the clamping vertical movement slide rail 623 is connected to the clamping longitudinal movement block 611, one end of the clamping vertical movement slider 624 is connected to the clamping longitudinal movement block 611, and the other end of the clamping vertical movement slide rail 623 is connected to the clamping vertical movement slide rail 624. The material clamping vertical movement cylinder 621 is connected to the material clamping longitudinal movement block 611 and is used to push the material clamping vertical movement block 622 to move vertically back and forth. Specifically, the fixed end of the material clamping vertical movement cylinder 621 is connected to the material clamping longitudinal movement block 611, the pushing end of the material clamping vertical movement cylinder 621 is connected to the material clamping vertical movement block 622, the fixed end of the clamping cylinder 603 is connected to the material clamping vertical movement block 622, and the movable end of the clamping cylinder 603 is connected to the gripper 602. When the material clamping screw motor 6... When the clamping jaw 602 moves to the clamping station, the clamping vertical movement cylinder 621 drives the clamping jaw 602 to move downwards. The clamping cylinder 603 drives the two sets of clamping jaws 602 to clamp the lateral ends of the baffle 102. Then, the clamping vertical movement cylinder 621 drives the clamping jaw 602 to move upwards. When the clamping screw motor 606 drives the clamping jaw 602 to move to the welding station, the clamping vertical movement cylinder 621 drives the clamping jaw 602 to move downwards, so that the baffle 102 fits against the surface of the middle rail 101. The welding device welds the connection between the baffle 102 and the middle rail 101. After welding, the clamping cylinder 603 drives the two sets of grippers 602 to release the baffle 102. The clamping vertical movement cylinder 621 drives the grippers 602 to move upward. At this time, the feeding cylinder 5012 pushes the feeding component 501 to move, moving the next baffle 102 from the loading station to the clamping station. The clamping screw motor 606 drives the grippers 602 to move back to the clamping station, thus completing the loading of the baffle 102.

[0052] Example 3: As Figure 1-4 , Figure 7-8 , Figure 12-13 As shown, a welding device for a middle rail 101 and a baffle 102 includes a base 1, a limiting member 701, and a laser welding mechanism 8. The base 1 is provided with a welding station for welding the middle rail 101 and the baffle 102. The limiting member 701 is mounted on the base 1 and is positioned relative to the welding station. The limiting member 701 is recessed from top to bottom with a limiting groove 7011. The inner wall of the limiting groove 7011 is adapted to the shape of the middle rail 101. The limiting groove 7011 is connected to the guide space 2311 of the guide member 231. The bottom wall of the limiting groove 7011 and the inner bottom wall of the guide space 2311 are on the same horizontal plane. The laser welding mechanism is mounted on the base 1 and is located on the longitudinal side of the limiting member 701. When both the middle rail 101 and the baffle 102 are located on the limiting member 701 at the welding station, the laser welding mechanism 8 welds the middle rail 101 and the baffle 102.

[0053] During operation, the middle rail 101 feeding device pushes the middle rail 101 into the limiting groove 7011 of the limiting member 701. The baffle 102 feeding device clamps the baffle 102 onto the top wall of the middle rail 101 and holds it on the middle rail 101. The laser welding mechanism 8 welds the connection between the baffle 102 and the middle rail 101. After welding is completed, the gripper 602 of the baffle 102 feeding device resets and retracts to clamp the next baffle 102. The pusher 301 of the middle rail 101 feeding device pushes the next middle rail 101 toward the limiting groove 7011, thereby moving the middle rail 101 on the welding station. The middle rail 101 with the welded baffle 102 is pushed out of the limiting groove 7011, thus completing the unloading. Laser welding is a non-contact processing method. Laser welding has a small heat input and a narrow heat-affected zone, which reduces the thermal deformation of the middle rail 101 caused by the heating during welding. By setting the limiting component 701, the middle rail 101 is positioned during welding, so that the position and posture of the middle rail 101 are consistent at the welding station. This reduces the welding position deviation of the baffle 102 caused by the inaccurate position and posture of the middle rail 101, improves the stability of the welding quality of the middle rail 101 and the baffle 102, and helps to improve the quality of the slide rail product.

[0054] Since the middle rail 101 is pushed by the pusher 301 of the middle rail 101 feeding device during feeding, and the middle rail 101 has inertia when moving forward, it is easy to cause longitudinal deviation when it reaches the welding station. In order to solve the above technical problem, this embodiment also includes an end positioning component 711 and an end positioning cylinder 7111. The end positioning cylinder 7111 is assembled with the machine base 1 and is used to drive the end positioning component 711 to move back and forth toward the limiting groove 7011. Specifically, the fixed end of the end positioning cylinder 7111 is connected to the machine base 1, and the movable end of the end positioning cylinder 7111 is connected to the end positioning component 711. When the pusher 301 of the feeding device pushes the middle rail 101 toward the limiting member 701, the end positioning member 711 is used to limit the middle rail 101 on the welding station and align it with the lateral end of the limiting member 701. Since the end positioning member 711 can move back and forth toward the limiting member 701, after the middle rail 101 and the baffle 102 are welded, the end positioning member 711 retracts, which facilitates the unloading of the middle rail 101 after welding. Through the cooperation of the pusher 301 and the end positioning member 711, the positional consistency of the middle rail 101 on the welding station is maintained, thereby improving the consistency of the welding quality of the baffle 102.

[0055] Since the middle rail 101 needs to slide out of the limiting groove 7011 of the limiting member 701 after welding, and the middle rail 101 is a long strip structure, the arrangement of the end positioning member 711 needs to be designed. The end positioning member 711 is inclinedly set on one side of the lateral end of the limiting member 701. The end positioning member 711 has a positioning groove 7112. The side wall of the positioning groove 7112 is used to contact the side wall of the limiting member 701 and the end wall of the middle rail 101. Similarly, the end positioning cylinder 7111 is inclined relative to the end positioning member 711, thereby ensuring the smoothness of the end positioning cylinder 7111 pushing the end positioning member 711. With the inclined design of the end positioning member 711, after positioning is completed, its backward path is to exit to the side, thereby opening the longitudinal movement channel of the middle rail 101 in the limiting groove 7011 and improving the smoothness of material unloading.

[0056] Specifically, the center line of the end positioning member 711 is set at an angle to the center line of the limiting groove 7011, with an angle of 30°±2°, which improves the rationality of the position design of the end positioning member 711.

[0057] To ensure smooth sliding of the middle rail 101 within the limiting groove 7011, a longitudinal assembly allowance is provided between the middle rail 101 and the limiting groove 7011. However, this allowance can cause fluctuations in the landing position of the middle rail 101 during processing, affecting the welding quality between the middle rail 101 and the baffle 102. To address this technical problem, this embodiment further includes a longitudinal positioning component 721 and a longitudinal positioning cylinder 7211. The longitudinal sidewall of the limiting component 701 has a longitudinal positioning groove 7012 communicating with the limiting groove 7011. The longitudinal positioning component 721 moves back and forth toward the longitudinal positioning groove 7012. The longitudinal positioning cylinder 7211 is assembled with the machine base 1 and used for longitudinal positioning. The component 721 moves back and forth toward the limiting groove 7011. Specifically, the fixed end of the longitudinal positioning cylinder 7211 is connected to the machine base 1, and the movable end of the longitudinal positioning cylinder 7211 is connected to the longitudinal positioning component 721. When the middle rail 101 is located at the welding station, the longitudinal positioning component 721 is used to push the middle rail 101 at the welding station to fit against the inner wall of the limiting groove 7011. The positioning component is driven by the longitudinal positioning cylinder 7211 to push the middle rail 101 toward and fit tightly against the inner wall of the limiting groove 7011, eliminating the longitudinal position fluctuation of the middle rail 101 in the limiting groove 7011 caused by the assembly allowance. This makes the position of the middle rail 101 consistent at the welding station.

[0058] The longitudinal positioning component 721 has a silicone buffer layer on the side wall facing the middle rail 101 to reduce the possibility of the longitudinal positioning component 721 causing damage to the outer wall of the middle rail 101.

[0059] Among them, there are two sets of longitudinal positioning components 721, and the two sets of longitudinal positioning components 721 are arranged at a lateral interval along the limiting component 701. Correspondingly, the limiting component 701 has two sets of longitudinal positioning grooves 7012, and there are two sets of longitudinal positioning cylinders 7211.

[0060] Regarding the specific structure of the laser welding mechanism 8, the laser welding mechanism 8 includes a laser welding gun 801 and a welding bracket 802. The welding bracket 802 is mounted on the base 1. The laser welding gun 801 is slidably mounted on the welding bracket 802 and moves back and forth along the lateral side of the welding bracket 802. The laser welding gun 801 is directed toward the connection between the central rail 101 and the baffle 102 on the welding station. By mounting the laser welding gun 801 on the laterally sliding welding bracket 802, the continuity and uniformity of the welding process are improved, which helps to improve the consistency of product welding quality.

[0061] Regarding the specific structure of the sliding assembly between the laser welding gun 801 and the welding bracket 802, the laser welding mechanism 8 also includes a welding screw 803, a welding screw slider 804, a welding screw motor 805, a welding transverse block, a welding transverse slide rail 807, and a welding transverse slider 808. The welding screw 803 is rotatably assembled with the welding bracket 802. The welding screw motor 805 is connected to the welding bracket 802 and is used to rotate the welding screw 803. Specifically, the fixed end of the welding screw motor 805 is connected to the welding bracket 802, the rotating end of the motor of the welding screw 803 is shaft-connected to the welding screw 803, the welding screw slider 804 is threadedly connected to the welding screw 803, the welding transverse block is connected to the welding screw slider 804, and the welding transverse block is connected to the welding bracket. The components 802 are connected by a slide rail and slider. Specifically, the welding transverse slide rail 807 is parallel to the axis of the welding screw 803 and is located above the welding screw 803. The welding transverse slide rail 807 is connected to the welding bracket 802. One end of the welding transverse slide rail 807 is connected to the welding transverse block. The other end of the welding transverse slider 808 is slidably assembled with the welding transverse slide rail 807. The laser welding gun 801 is assembled with the welding transverse block. The welding screw motor 805 rotates, which drives the welding screw 803 to rotate, thereby causing the welding transverse block to move back and forth along the axis of the welding screw 803. This drives the laser welding gun 801 to push laterally along the connection between the middle rail 101 and the baffle 102, thereby completing the welding of the baffle 102 and the middle rail 101.

[0062] The laser welding mechanism 8 also includes a square bar 811, an assembly block 812, a welding position sensor 813, and a sensing plate 814. The square bar 811 is connected to the top wall of the welding bracket 802 and is arranged parallel to the axis of the welding screw 803. The sensing plate 814 is connected to the welding transverse block. The assembly block 812 is slidably assembled with the square bar 811 and fixed by a set screw. The welding position sensor 813 is connected to the assembly block 812 and is used to sense the sensing plate 814. Two sets of welding position sensors 813 are arranged at intervals along the longitudinal direction of the square bar 811. The welding position sensor 813 is electrically connected to the processor and is used to input the welding position signal of the laser welding gun 801 of the processor. The processor is electrically connected to the welding screw motor 805 and is used to control the start and stop signals of the push screw motor 305 so that welding can be performed at the contact point between the baffle 102 and the middle rail 101.

[0063] The tilt angle between the laser welding torch 801 and the surface of the workpiece to be welded has a decisive influence on the stability of the welding process and the quality of the weld formation. Therefore, in order to enable the adjustment of the laser welding mechanism 8, this embodiment also includes an adjustment mechanism 9 for adjusting the tilt angle of the laser welding mechanism 8. The adjustment mechanism 9 and the laser welding mechanism 8 are located on the same side of the limiting member 701. The adjustment mechanism 9 includes a fixed bracket 901 and an adjustment bracket 902. The fixed bracket 901 is mounted on the base 1, and the adjustment bracket 902 is rotatably assembled with the fixed bracket 901. The welding bracket 802 is connected to the adjustment bracket 902. Through the adjustment mechanism 9, during the welding quality debugging and testing process, technicians can adjust the angle of the laser welding torch 801 relative to the workpiece surface to optimize the weld formation quality.

[0064] To improve the stability of the adjustment bracket 902, the adjustment mechanism 9 also includes a rotating shaft 903, an adjusting block 904, and an adjusting screw 905. The adjusting bracket 902 is connected to the rotating shaft 903 and is used for rotatable assembly with the fixed bracket 901. The adjusting block 904 is connected to the outer ring wall of the rotating shaft 903. The adjusting screw 905 is threadedly connected to the fixed bracket 901 and is used to abut against the adjusting block 904. Two sets of adjusting screws 905 are provided and are arranged at intervals along the longitudinal direction of the adjusting block 904. By rotating the adjusting screw 905, the abutment length between the adjusting screw 905 and the adjusting block 904 changes, thereby adjusting the fixed bracket 901.

[0065] The longitudinal length of the adjusting block 904 is greater than the diameter of the rotating shaft 903. When the rotating shaft 903 and the adjusting screw 905 are projected onto the top wall of the adjusting block 904, the two sets of adjusting screws 905 are located on the longitudinal sides of the rotating shaft 903 respectively. This allows the two sets of adjusting screws 905 to rotate the rotating shaft 903 by means of different extension amounts and by force transmission through the adjusting block 904.

[0066] To ensure the stability of the position of the adjusting screw 905 after adjustment, the adjusting mechanism 9 also includes adjusting nuts 906. Each set of adjusting screws 905 is provided with two sets of adjusting nuts 906. The two sets of adjusting nuts 906 are located on the upper and lower vertical sides of the fixed bracket 901, respectively, to fix the adjusting screw after adjustment. A self-locking effect is formed between the threads of the nut and the screw, which improves the stability and reliability of the laser welding mechanism 8 in adjusting the angle.

[0067] Furthermore, to reduce the axial movement of the rotating shaft 903, the adjusting mechanism 9 also includes two sets of clamping blocks 907. A U-shaped frame is provided on the top wall of the fixed bracket 901. The two sets of clamping blocks 907 are connected to the rotating shaft 903 and located inside the U-shaped frame. The outer lateral wall of the clamping blocks 907 abuts against the inner lateral wall of the U-shaped frame. The U-shaped frame has a slot, which is tightened or loosened by screws to lock or release the rotating shaft 903. The two sets of clamping blocks 907 are tightly against the inner wall of the U-shaped frame, effectively limiting the possible axial movement of the rotating shaft 903. Simultaneously, by tightening the slot of the U-shaped frame with screws, the rotating shaft 903 can be radially clamped, improving the stability and reliability of the laser welding mechanism 8's angle adjustment.

[0068] Regarding the specific structure for unloading the middle rail 101 after welding the baffle 102, this embodiment also includes an unloading slide 731. The unloading slide 731 is connected to the transverse side wall of the limiting member 701 and is located away from the guide member 231. The unloading slide 731 is gradually inclined downward from the limiting member 701. The end positioning member 711 and the end positioning cylinder 7111 are located on the longitudinal side of the unloading slide 731. After the slide rail on the welding station is welded to the baffle 102, the pusher 301 pushes the next middle rail 101 to move towards the welding station. The next middle rail 101 pushes the welded product so that it slides along the unloading slide 731 for unloading.

[0069] Example 4: Figure 1-13 As shown, a sliding rail laser welding machine includes a middle rail 101 feeding device for feeding the middle rail 101 in Embodiment 1, a baffle 102 feeding device for feeding the baffle 102 in Embodiment 2, and a welding device for welding the middle rail 101 and the baffle 102 in Embodiment 3. The baffle 102 feeding device is mounted on the machine base 1 and located on one longitudinal side of the welding station, and the welding device is mounted on the machine base 1 and located on the other longitudinal side of the welding station.

[0070] The guide member 231 is connected to the baffle member 221 and the limiting member 701 on its two lateral sides, and the middle rail 101 moves from the baffle member 221 toward the limiting member 701.

[0071] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A medium-rail feeding device, characterized in that: The device includes a base, a conveyor belt, a stop, and a pushing mechanism. The base has a welding station for welding the middle rail and the stop plate. The conveyor belt is mounted on the base and is used to transport the middle rail. The stop is mounted on the base and is located at the end of the conveyor belt in the forward direction. The pushing mechanism is mounted on the base and is located above the stop and is used to push the middle rail to the welding station. When the middle rail moves to the stop, the pushing mechanism pushes the middle rail to the welding station.

2. The middle rail feeding device according to claim 1, characterized in that: The top wall of the baffle is set at the same height as the top wall of the conveyor belt, and the baffle has a vertically protruding baffle portion on the side away from the conveyor belt.

3. The middle rail feeding device according to claim 1, characterized in that: It also includes a transition piece, which is connected to the longitudinal sidewall of the baffle and is located between the baffle and the conveyor belt. The transition piece has an arc portion at one end facing the conveyor belt that is adapted to the conveyor belt.

4. The middle rail feeding device according to claim 1, characterized in that: It also includes a guide component, which is assembled at one end of the stop component near the welding station. The guide component is recessed from top to bottom and has a guide space that matches the shape of the middle rail.

5. The middle rail feeding device according to claim 1, characterized in that: The pushing mechanism includes a pushing component and a pushing bracket. The pushing bracket is mounted on the machine base. The pushing component is slidably mounted to the pushing bracket and moves back and forth along the lateral side of the pushing bracket. The pushing component is used to push the lateral end face of the middle rail.

6. The middle rail feeding device according to claim 5, characterized in that: The pushing mechanism further includes a pushing screw, a pushing screw slider, a pushing screw motor, and a pushing transverse block. The pushing screw is rotatably assembled with the pushing bracket. The pushing screw motor is connected to the pushing bracket and is used to rotate the pushing screw. The pushing screw slider is threadedly connected to the pushing screw. The pushing transverse block is connected to the pushing screw slider. The pushing transverse block is connected to the pushing bracket via a slide rail slider. The pushing component is assembled with the pushing transverse block.

7. The middle rail feeding device according to claim 6, characterized in that: The pushing mechanism further includes a vertical pushing cylinder and a vertical pushing block. The vertical pushing block and the horizontal pushing block are slidably connected by a slide rail slider. The vertical pushing cylinder is connected to the horizontal pushing block and is used to push the vertical pushing block to move back and forth vertically. The pushing component is connected to the vertical pushing block.

8. The middle rail feeding device according to claim 1, characterized in that: The system includes guide bars, guide rods, adjusting bars, adjusting slides, and linear bearings with clamping handles. Two sets of guide bars are provided and connected to the top of each of the transverse ends of the conveyor belt. The guide rods are connected between the two sets of guide bars. The adjusting slides are slidably assembled with the guide rods via the linear bearings. The adjusting bars are connected to the adjusting slides and located on the top wall of the conveyor belt. When the adjusting slides move axially along the guide rods, the transverse distance between the adjusting bars and the guide bars changes to accommodate center rails of different lengths.

9. A middle rail feeding device according to claim 7, characterized in that: The feeding mechanism further includes a key bar, a mounting block, a feeding position sensor, and a sensing block. The key bar is connected to the top wall of the feeding bracket and is arranged parallel to the axis of the feeding screw. The sensing block is connected to the feeding transverse block. The mounting block is slidably assembled with the key bar and fixed by a set screw. The feeding position sensor is connected to the mounting block and is used to sense the sensing block.

10. A slide rail laser welding machine, comprising a baffle feeding device for feeding baffles and a welding device for laser welding the middle rail and the baffles, characterized in that: It also includes a middle rail feeding device as described in any one of claims 1 to 9, wherein the baffle feeding device is mounted on the machine base and located on one longitudinal side of the welding station, and the welding device is mounted on the machine base and located on the other longitudinal side of the welding station.

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