Leaf spring assembly apparatus

Abstract

This application discloses a leaf spring assembly device, including a support assembly, a drive device, a material picking device, a feeding device, and a top-pressing fixing device. The support assembly includes a frame box, two columns, and an assembly platform. The frame box is vertically positioned relative to the ground, and the two columns are arranged side-by-side and vertically within the frame box. The assembly platform is fixedly mounted on the bottom wall of the inner cavity of the frame box and is equipped with a limiting mechanism for limiting the position of the spring plates. The drive device is mounted on the side wall of the frame box. The material picking device is vertically mounted on the two columns and is connected to the drive device. The feeding device is located on one side of the frame box, and its output end extends into the frame box. This device can replace manual labor in aligning and stacking multiple leaf springs of different lengths, effectively improving assembly efficiency, reducing labor intensity, decreasing reliance on a large workforce, and thus lowering labor costs.

Description

Technical Field

[0001] This application relates to the technical field of leaf spring processing, and more particularly to a leaf spring assembly device. Background Technology

[0002] Automotive leaf springs, as classic elastic elements in automotive suspension systems, are widely popular due to their superior reliability, simple structure, short manufacturing process, and low cost. They consist of several stacked leaf springs of varying lengths. In the suspension system, besides providing cushioning, automotive leaf springs are also responsible for transmitting forces and torques, as well as determining the trajectory of the wheels.

[0003] Chinese patent CN201420377176.4 discloses an automotive leaf spring assembly machine, which consists of hydraulic pipelines, hydraulic cylinders, piston rods, bolts, a material support platform, a sliding rod, a gantry frame, a base one, a support frame, a baffle, a base two, an unloading switch, a loading switch, screws, and a hydraulic station. Its key feature is that a gantry frame is installed on the upper side of base one, and a hydraulic cylinder is fixedly installed at the center of the upper end of the gantry frame by bolts. A material support platform is installed at the center of the lower end of the gantry frame, and a loading switch and an unloading switch are installed in the middle of the material support platform. Support frames are symmetrically installed on both sides of the material support platform, and one end of the sliding rod is fixedly connected to the upper end of the support frame. A baffle is installed at the other end of the sliding rod.

[0004] However, during the assembly of leaf springs, workers need to manually place multiple leaf spring plates of different lengths onto the support platform for stacking and assembly. Each time a plate is placed, the center hole must be checked to ensure it is inserted into the center bolt. This assembly method is inefficient, and because the leaf spring plates are heavy, handling and alignment are inconvenient, requiring a significant amount of manpower and resulting in a waste of resources. This not only increases the workload for workers but also affects assembly efficiency. Summary of the Invention

[0005] This application aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, one objective of this application is to provide a leaf spring assembly device that can replace manual labor in aligning and stacking multiple leaf spring plates of different lengths, effectively improving assembly efficiency, reducing the labor intensity of workers, reducing reliance on a large number of manpower, and thus reducing labor costs.

[0007] To achieve the above objectives, a first aspect of this application provides a leaf spring assembly device, including a support assembly, a drive device, a material handling device, a feeding device, and a pressing and fixing device. The support assembly includes a frame box, two columns, and an assembly platform. The frame box is vertically arranged relative to the ground, and the two columns are arranged side-by-side and vertically within the frame box. The assembly platform is fixedly mounted on the bottom wall of the inner cavity of the frame box, and a limiting mechanism is provided on the assembly platform to limit the spring plate. The drive device is mounted on the side wall of the frame box. The material handling device has two columns that can be vertically and vertically mounted. The material handling device is connected to the drive device on the column, wherein the drive device is used to drive the material handling device to move up and down; the feeding device is located on one side of the frame box, and the output end of the feeding device extends into the frame box; wherein the feeding device is used to feed the spring plate to the material handling device; the material handling device is used to place the spring plate centrally on the limiting mechanism for stacking and assembly; the top pressing and fixing device is vertically and vertically mounted on the top wall of the frame box, wherein the top pressing and fixing device is used to apply pressure to the stacked spring plates and fix them to obtain a leaf spring.

[0008] The leaf spring assembly equipment of this application embodiment can replace manual labor in aligning and stacking multiple leaf spring plates of different lengths one by one, effectively improving assembly efficiency, reducing the labor intensity of workers, reducing reliance on a large number of manpower, and thus reducing labor costs.

[0009] In addition, the leaf spring assembly equipment proposed in this application may also have the following additional technical features:

[0010] In one embodiment of this application, the limiting mechanism includes two strip plates, two V-shaped plates, and two sets of limiting posts. The two strip plates are arranged side by side and horizontally fixed on the assembly table. The two V-shaped plates are symmetrically arranged between the two strip plates, and the two V-shaped plates and the two strip plates form a hexagonal groove for limiting the hexagonal bolts. The two sets of limiting posts are symmetrically and vertically arranged on the corresponding strip plates, and each set of limiting posts includes two symmetrically distributed limiting posts.

[0011] In one embodiment of this application, the driving device includes two sprockets, a chain, and a first driving mechanism, wherein the two sprockets are arranged longitudinally side by side and rotatably on the inner wall of the frame box; the chain is sleeved on the two sprockets; the first driving mechanism is arranged on the outer wall of the frame box, and the output end of the first driving mechanism is connected to one end of the shaft of one of the sprockets.

[0012] In one embodiment of this application, the material handling device includes a support frame, a support block, a drive assembly, and two material handling components. The support frame is vertically mounted on the two columns. The support block is movably disposed within the support frame and is pivotally connected to the chain. The drive assembly is disposed on the support block. The two material handling components are disposed side by side and movably disposed on the drive assembly.

[0013] In one embodiment of this application, the drive assembly includes a support base, a bidirectional threaded rod, and a second drive mechanism. The support base is fixedly mounted on the support block and has a groove. The bidirectional threaded rod is rotatably mounted in the groove. The second drive mechanism is located at one end of the support base, and its output end is connected to one end of the bidirectional threaded rod.

[0014] In one embodiment of this application, the material handling assembly includes a support plate, a pressure sensor, a U-shaped frame, a top pressure rod, two guide rods, a roller, and a third drive mechanism. One end of the support plate is threaded onto the bidirectional threaded rod, and the support plate is slidably connected to the slide groove. The pressure sensor is mounted on the support plate and connected to a controller. The U-shaped frame is movably mounted on the support plate. The top pressure rod is vertically fixed on the bottom wall of the support plate, and its bottom end abuts against the pressure sensor. The two guide rods are symmetrically arranged on both sides of the top pressure rod, with their top ends fixedly connected to the bottom wall of the support plate, and their bottom ends movably penetrating the support plate. The roller is rotatably mounted within the U-shaped frame. The third drive mechanism is mounted on the U-shaped frame, its output end connected to one end of the roller's rotating shaft, and connected to the controller.

[0015] In one embodiment of this application, the feeding device includes a feeding frame, multiple conveying rollers, multiple belt drive mechanisms, and a fourth drive mechanism. The feeding frame is disposed on one side of the frame box, and the output end of the feeding frame extends into the frame box. The side wall of the feeding frame is provided with a discharge port facing the chain. The multiple conveying rollers are equidistantly arranged side by side and rotatably disposed on the feeding frame, and one end of the rotating shaft of the multiple conveying rollers is connected in series through the multiple belt drive mechanisms. The fourth drive mechanism is disposed on the feeding frame, and the output end of the fourth drive mechanism is connected to the other end of the rotating shaft of one of the conveying rollers.

[0016] In one embodiment of this application, the top-pressing fixing device includes a U-shaped pressure plate, two guide rods, a telescopic mechanism, a fifth drive mechanism, a spline shaft, a spring, and an internal hexagon head. The U-shaped pressure plate is positioned above the assembly table. The two guide rods are arranged side-by-side and vertically fixed on the U-shaped pressure plate, with their top ends movably penetrating the top wall of the frame box. The telescopic mechanism is located on the top wall of the frame box, and its output end is fixedly connected to the U-shaped pressure plate. The fifth drive mechanism is located within the U-shaped pressure plate, and its output end has a spline groove. The spline shaft is movably disposed within the spline groove. The spring is disposed within the spline groove, with one end connected to the end wall of the spline groove and the other end connected to one end of the spline shaft. The internal hexagon head is fixedly connected to the other end of the spline shaft.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of a leaf spring assembly device according to an embodiment of this application;

[0020] Figure 2 for Figure 1 A magnified structural diagram of part A in the diagram;

[0021] Figure 3 This is a schematic diagram of a leaf spring assembly device according to another embodiment of this application;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part B in the diagram;

[0023] Figure 5 This is a schematic diagram of a leaf spring assembly device according to another embodiment of this application;

[0024] Figure 6 This is a schematic diagram of a leaf spring assembly device according to another embodiment of this application;

[0025] Figure 7 This is a partial structural schematic diagram of a leaf spring assembly device according to an embodiment of this application.

[0026] As shown in the figure: 10. Support assembly; 11. Frame box; 12. Column; 13. Assembly table; 14. Limiting mechanism; 141. Strip plate; 142. V-shaped plate; 143. Limiting post; 20. Drive device; 21. Sprocket; 22. Chain; 23. First drive mechanism; 30. Material handling device; 31. Support frame; 32. Support block; 33. Drive assembly; 331. Support seat; 332. Bidirectional threaded rod; 333. Second drive mechanism; 301. Slide groove; 34. Material handling assembly; 341. Support Support plate; 342, pressure sensor; 343, U-shaped frame; 344, top pressure rod; 345, guide rod; 346, idler roller; 347, third drive mechanism; 40, feeding device; 41, feeding frame; 42, conveyor roller; 43, belt drive mechanism; 44, fourth drive mechanism; 401, discharge port; 50, top pressure fixing device; 51, U-shaped pressure plate; 52, guide rod; 53, telescopic mechanism; 54, fifth drive mechanism; 55, splined shaft; 56, spring; 57, internal hexagonal head; 501, spline groove. Detailed Implementation

[0027] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0028] The leaf spring assembly equipment of this application embodiment will now be described with reference to the accompanying drawings.

[0029] like Figures 1-7 As shown, the leaf spring assembly equipment of this application embodiment may include a support assembly 10, a drive device 20, a material picking device 30, a feeding device 40, and a top pressing and fixing device 50.

[0030] The support component 10 may include a frame box 11, two columns 12 and an assembly platform 13. The frame box 11 is set vertically relative to the ground, and the two columns 12 are arranged side by side and vertically inside the frame box 11.

[0031] Assembly table 13 is fixedly mounted on the bottom wall of the inner cavity of frame box 11. Assembly table 13 is provided with limiting mechanism 14, wherein limiting mechanism 14 is used to limit the spring plate. It should be noted that the spring plate described in this embodiment has a central hole.

[0032] The drive device 20 is installed on the side wall of the frame box 11. The material picking device 30 is vertically mounted on the two columns 12 and is connected to the drive device 20. The drive device 20 is used to drive the material picking device 30 to move vertically.

[0033] The feeding device 40 is located on one side of the frame box 11, and the output end of the feeding device 40 extends into the frame box 11. The feeding device 40 is used to feed the spring plate to the picking device 30.

[0034] It should be noted that the spring plate conveyed by the feeding device 40 to the picking device 30 in this embodiment has a certain curvature, and the curved opening of the spring plate is conveyed upwards during the conveying process.

[0035] The material handling device 30 is used to place the spring plates in the center on the limiting mechanism 14 for stacking and assembly. The top pressing and fixing device 50 is movably mounted on the top wall of the frame box 11. The top pressing and fixing device 50 is used to apply pressure to the stacked spring plates and fix them to obtain the leaf spring.

[0036] Specifically, when it is necessary to assemble leaf springs of different lengths into leaf springs, the relevant personnel first need to set up the leaf spring assembly equipment at the location of the leaf spring to be assembled (this location can be inside the leaf spring processing workshop). Then, the personnel place the leaf springs of different lengths on the feeding device 40 in sequence. At this time, the personnel control the feeding device 40 to transport multiple leaf springs of different lengths to the picking device 30 in sequence (it should be noted that the feeding device 40 transports multiple leaf springs of different lengths in the order from shortest to longest).

[0037] Subsequently, the staff controlled the drive device 20 to drive the material picking device 30 to move up and down, so that the material picking device 30 would take the spring plate out of the feeding device 40 and place it in the center on the limiting mechanism 14 for stacking and assembly.

[0038] After multiple leaf spring plates of different lengths are sequentially stacked by fitting their center holes onto a central bolt (hexagonal bolt), the worker pre-screws the hexagonal nuts onto the central bolt. Then, the top-pressing fixing device 50 applies pressure to the stacked spring plates, making them more compact. Simultaneously, the hexagonal nuts are tightened onto the central bolt, locking and fixing the stacked leaf spring plates, thus forming a leaf spring. This method replaces manual assembly of multiple leaf spring plates of different lengths one by one, effectively improving assembly efficiency, reducing the labor intensity of workers, decreasing reliance on a large workforce, and consequently lowering labor costs.

[0039] In one embodiment of this application, such as Figure 3 and Figure 5As shown, the limiting mechanism 14 may include two strip plates 141, two V-shaped plates 142 and two sets of limiting posts 143, wherein the two strip plates 141 are arranged side by side and horizontally fixed on the assembly table 13.

[0040] Two V-shaped plates 142 are symmetrically arranged between two strip plates 141, and the two V-shaped plates 142 and the two strip plates 141 form a hexagonal groove for limiting the position of the hexagonal bolts.

[0041] Two sets of limiting posts 143 are symmetrically and vertically arranged on the corresponding strip plates 141, and each set of limiting posts 143 may include two symmetrically distributed limiting posts. It should be noted that the top surface of the two symmetrically distributed limiting posts in each set of limiting posts 143 described in this embodiment may be an inclined surface, and the inclined surfaces on the two limiting posts 143 are symmetrically arranged.

[0042] Understandably, before multiple leaf spring plates of different lengths need to be stacked and fixed into a leaf spring, the workers first need to place the hexagonal bolts in the hexagonal groove formed by two V-shaped plates 142 and two strip plates 141 to limit the movement of the hexagonal bolts when the hexagonal nuts are rotated. The spring plates are placed between two symmetrically distributed limit posts in each set of limit posts 143.

[0043] In one embodiment of this application, such as Figure 6 As shown, the feeding device 40 may include a feeding frame 41, multiple conveying rollers 42, multiple belt drive mechanisms 43 and a fourth drive mechanism 44. The feeding frame 41 is disposed on one side of the frame box 11, and the output end of the feeding frame 41 extends into the frame box 11. The side wall of the feeding frame 41 is provided with a discharge port 401 facing the chain 22.

[0044] It should be noted that the conveying roller described in this embodiment is H-shaped, and the width of the spring plate can be the same as the groove width of the H-shaped conveying roller, which facilitates the positioning and conveying of the spring plate.

[0045] Multiple conveying rollers 42 are equidistantly arranged side by side and rotated on the feeding frame 41, and one end of the rotating shaft of the multiple conveying rollers 42 is connected in series through multiple belt drive mechanisms 43.

[0046] It should be noted that the belt drive mechanism described in this embodiment may include two pulleys and a belt. The two pulleys are respectively connected to one end of the shaft of two adjacent conveyor rollers 42, and the belt is sleeved on the two pulleys.

[0047] The fourth drive mechanism 44 is mounted on the feed rack 41, and the output end of the fourth drive mechanism 44 is connected to the other end of the shaft of one of the conveying rollers 42. It should be noted that the fourth drive mechanism 44 described in this embodiment may be a servo motor.

[0048] Specifically, the operator can drive one of the conveying rollers 42 to rotate by controlling the fourth drive mechanism 44. The rotating conveying roller 42 drives the other conveying rollers to rotate synchronously through multiple belt drive mechanisms 43, thereby conveying multiple sheet spring plates of different lengths to the output end of the feeding frame 41 (i.e., the discharge port 401) so that the material picking device 30 can pick up the materials.

[0049] In one embodiment of this application, such as Figure 5 and Figure 6 As shown, the drive device 20 may include two sprockets 21, a chain 22 and a first drive mechanism 23, wherein the two sprockets 21 are arranged longitudinally side by side and rotatably on the inner wall of the frame box 11.

[0050] The chain 22 is fitted onto two sprockets 21. The first drive mechanism 23 is set on the outer wall of the frame box 11, and the output end of the first drive mechanism 23 is connected to one end of the shaft of one of the sprockets 21.

[0051] It should be noted that the first drive mechanism 23 described in this embodiment may be a servo motor.

[0052] Understandably, the operator can control the first drive mechanism 23 to drive the sprocket 21 to rotate the chain 22, and the rotating chain will drive the material handling device 30 to move up and down in a cyclical manner.

[0053] In one embodiment of this application, such as Figures 1-3 , Figure 5 and Figure 7 As shown, the material handling device 30 may include a support frame 31, a support block 32, a drive assembly 33, and two material handling assemblies 34, wherein the support frame 31 is movably mounted on two columns 12.

[0054] The support block 32 is movably disposed within the support frame 31 and is pivotally connected to the chain 22. The drive assembly 33 is disposed on the support block 32, and two material picking assemblies 34 are disposed side by side and movably disposed on the drive assembly 33.

[0055] To clearly illustrate the previous embodiment, in one embodiment of this application, as follows: Figure 3 , Figure 5 and Figure 7 As shown, the drive assembly 33 may include a support base 331, a bidirectional threaded rod 332, and a second drive mechanism 333. The support base 331 is fixedly mounted on the support block 32, and a sliding groove 301 is provided on the support base 331. It should be noted that the second drive mechanism 333 described in this embodiment is connected to the controller.

[0056] The bidirectional threaded rod 332 is rotatably disposed within the slide groove 301, and the second drive mechanism 333 is disposed at one end of the support base 331, with the output end of the second drive mechanism 333 connected to one end of the bidirectional threaded rod 332. It should be noted that the second drive mechanism 333 described in this embodiment can be a bidirectional motor, meaning the motor's output shaft can rotate in both forward and reverse directions.

[0057] It should be noted that the bidirectional threaded rod 332 described in this embodiment is a threaded rod with two threads in opposite directions. That is, when the second drive mechanism drives the bidirectional threaded rod 332 to rotate in both directions, it can drive the two material handling components 34 to move towards or away from each other.

[0058] Furthermore, to clearly illustrate the above embodiment, in one embodiment of this application, as follows: Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, the material handling assembly 34 may include a support plate 341, a pressure sensor 342, a U-shaped frame 343, a top pressure rod 344, two guide rods 345, a roller 346, and a third drive mechanism 347. One end of the support plate 341 is threaded onto the bidirectional threaded rod 332, and the support plate 341 is slidably connected to the slide groove 301.

[0059] Pressure sensor 342 is mounted on support plate 341 and is connected to controller. U-shaped frame 343 is movably mounted on support plate 341. Top pressure rod 344 is vertically fixed on bottom wall of support plate 341 and bottom end of top pressure rod 344 abuts against pressure sensor 342.

[0060] Two guide rods 345 are symmetrically arranged on both sides of the top pressure rod 344, and the top ends of the two guide rods 345 are fixedly connected to the bottom wall of the support plate 341, while the bottom ends of the two guide rods 345 can movably penetrate the support plate 341.

[0061] The idler roller 346 is rotatably mounted inside the U-shaped frame 343. The third drive mechanism 347 is mounted on the U-shaped frame 343. The output end of the third drive mechanism 347 is connected to one end of the rotating shaft of the idler roller 346, and the third drive mechanism 347 is connected to the controller.

[0062] It should be noted that the third drive mechanism 347 described in this embodiment can be a bidirectional stepper motor, that is, the output shaft of the stepper motor can switch between forward and reverse rotation.

[0063] Specifically, when the spring plate conveyed to the output end of the feeder 41 needs to be placed on the limiting mechanism 14 for stacking and assembly, the operator can control the first drive mechanism 23 to drive the chain 22 to move the support block 32 in a counterclockwise cyclic reciprocating motion along the movement trajectory of the chain 22, referring to... Figure 3As shown, the moving support block 32 drives the support block frame 31 to move up and down along the two columns 12, and when the support block 32 turns with the chain 22, the support block 22 moves within the support frame 31.

[0064] As the support frame 31 rises, the rising support frame 31 drives the drive assembly 33 and the two picking assemblies 34 to rise synchronously through the support block 32. The two picking assemblies 34, which rise and move, pass through the output end of the feed rack 41 and pick up the spring plate. At this time, the spring plate is located between the rollers 346 in the two picking assemblies 34. Since the arc of the spring plate faces upward, the spring plate can move between the two rollers 346 under its own gravity to correct the deviation, so that the spring plate is centered between the two rollers 346.

[0065] If the spring plate located between the two idler rollers 346 is not centered and corrected, the pressure exerted by the offset spring plate on the two idler rollers 346 will be different. Simultaneously, the pressed idler rollers 346 exert pressure on the U-shaped frame 343, which in turn exerts pressure on the pressure sensor 342 via the top pressure rod 344. Because the offset spring plate exerts different pressures on the two idler rollers 346, the two pressure sensors 342 send control signals to the controller when they experience different pressures. Upon receiving the control signals, the controller sends control commands to the corresponding third drive mechanism 347. The third drive mechanism 347 drives the idler rollers 346 to rotate according to the control commands. The rotating idler rollers 346 cause the spring plate to move and correct between the two idler rollers 346 until the spring plate is centered between the two idler rollers 346, ensuring that the two idler rollers 346 experience equal pressure.

[0066] At the same time, the spring plate, which is centered between the two idler rollers 346, moves along the movement trajectory of the chain 22 with the support block 32 and is transported between the two sets of limit posts 143. As the two idler rollers 346 drive the spring plate to move down, the center hole on the spring plate is fitted onto the center bolt for stacking and assembly.

[0067] Subsequently, the controller controls the second drive mechanism 333 to drive the bidirectional threaded rod 332 to rotate. The rotating bidirectional threaded rod 332 drives the two support plates 341 to move in opposite directions, causing the two support plates 341 to move to both sides of the assembly table 13 and move downwards, passing under the assembly table 13 in a cyclical movement. This sequentially conveys the sheet spring plates of different lengths from the output end of the feeding rack 41 to the central bolt between the two sets of limiting posts 143 for stacking and assembly. This replaces manual labor in aligning and stacking multiple spring plates of different lengths one by one, effectively improving assembly efficiency, reducing the labor intensity of workers, reducing reliance on a large number of manpower, and thus reducing labor costs.

[0068] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, the top pressure fixing device 50 may include a U-shaped pressure plate 51, two guide rods 52, a telescopic mechanism 53, a fifth drive mechanism 54, a spline shaft 55, a spring 56, and an internal hexagon head 57, wherein the U-shaped pressure plate 51 is disposed above the assembly table 13.

[0069] Two guide rods 52 are fixedly mounted side by side and vertically on the U-shaped pressure plate 51, and the top ends of the two guide rods 52 can move through the top wall of the frame box 11. The telescopic mechanism 53 is mounted on the top wall of the frame box 11, and the output end of the telescopic mechanism 53 is fixedly connected to the U-shaped pressure plate 51.

[0070] It should be noted that the telescopic mechanism 53 described in this embodiment can be a cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0071] The fifth drive mechanism 54 is located inside the U-shaped pressure plate 51, and the output end of the fifth drive mechanism 54 is provided with a spline groove 501, and the spline shaft 55 is movably located inside the spline groove 501.

[0072] It should be noted that the fifth drive mechanism 54 described in this embodiment may be a drive motor.

[0073] Spring 56 is disposed in spline groove 501, and one end of spring 56 is connected to the end wall of spline groove 501, and the other end of spring 56 is connected to one end of spline shaft 55. Hex socket head 57 is fixedly connected to the other end of spline shaft 55.

[0074] Understandably, after multiple spring plates of different lengths are aligned and stacked on the center bolt, the operator can pre-screw the hexagonal nut onto the center bolt, then control the output end of the telescopic mechanism 53 to extend, and through the U-shaped pressure plate 51, drive the fifth drive mechanism 54, spline shaft 55, spring 56, and internal hexagon head 57 to move downwards synchronously. The downward-moving U-shaped pressure plate 51 applies pressure to the spring plates stacked on the center bolt, making the stacked spring plates more compact. At the same time, the internal hexagon head 57 engages with the hexagonal nut. At this point, the operator controls the fifth drive mechanism 54 to drive the spline shaft 55 to rotate the internal hexagon head 57, and tightens the hexagonal nut onto the center bolt, locking and fixing the stacked multiple leaf spring plates, thus obtaining the leaf spring.

[0075] In summary, the leaf spring assembly equipment of this application embodiment can replace manual labor in aligning and stacking multiple leaf spring plates of different lengths, effectively improving assembly efficiency, reducing the labor intensity of workers, reducing reliance on a large number of manpower, and thus reducing labor costs.

[0076] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A leaf spring assembly device, characterized in that, It includes a support assembly, a drive unit, a material handling unit, a feeding unit, and a top-pressing fixing unit, among which, The support assembly includes a frame box, two columns, and an assembly platform, wherein... The frame box is set vertically relative to the ground, and the two columns are set side by side and vertically inside the frame box; The assembly platform is fixedly installed on the bottom wall of the inner cavity of the frame box. The assembly platform is provided with a limiting mechanism, wherein the limiting mechanism is used to limit the spring plate. The drive unit is mounted on the side wall of the frame box; The material handling device is vertically mounted on the two columns, and the material handling device is connected to the driving device, wherein the driving device is used to drive the material handling device to move vertically. The feeding device is located on one side of the frame box, and the output end of the feeding device extends into the frame box; wherein, The feeding device is used to deliver the spring plate to the picking device; The material handling device is used to place the spring plate in the center on the limiting mechanism for stacking and assembly; The top-pressing fixing device is movably mounted on the top wall of the frame box, wherein the top-pressing fixing device is used to apply pressure to the stacked spring plates and fix them to obtain a leaf spring; The drive device includes two sprockets, a chain, and a first drive mechanism, wherein, The two sprockets are arranged longitudinally side by side and rotatably on the inner wall of the frame box; The chain is fitted onto the two sprockets; The first drive mechanism is disposed on the outer wall of the frame box, and the output end of the first drive mechanism is connected to one end of the shaft of one of the sprockets; The material handling device includes a support frame, a support block, a drive assembly, and two material handling components, wherein... The support frame is detachably mounted on the two columns; The support block is movably disposed within the support frame, and the support block is pivotally connected to the chain; The drive component is mounted on the support block; The two material handling components are arranged side by side and movably mounted on the drive component; The material handling assembly includes a support plate, a pressure sensor, a U-shaped frame, a top pressure rod, two guide rods, a roller, and a third drive mechanism. One end of the support plate is threaded onto a bidirectional threaded rod, and the support plate is slidably connected to the slide groove. The pressure sensor is mounted on the support plate and is connected to the controller; The U-shaped frame is movably mounted on the support plate; The top pressure rod is vertically fixed on the bottom wall of the support plate, and the bottom end of the top pressure rod abuts against the pressure sensor; The two guide rods are symmetrically arranged on both sides of the top pressure rod, and the top ends of the two guide rods are fixedly connected to the bottom wall of the support plate, while the bottom ends of the two guide rods can movably penetrate the support plate. The idler roller is rotatably mounted inside the U-shaped frame; The third drive mechanism is mounted on the U-shaped frame. The output end of the third drive mechanism is connected to one end of the rotating shaft of the idler roller, and the third drive mechanism is connected to the controller.

2. The leaf spring assembly equipment according to claim 1, characterized in that, The limiting mechanism includes two strip plates, two V-shaped plates, and two sets of limiting posts, wherein, The two strip plates are arranged side by side and horizontally fixed on the assembly table; The two V-shaped plates are symmetrically arranged between the two strip plates, and the two V-shaped plates and the two strip plates form a hexagonal groove for limiting the position of the hexagonal bolts; The two sets of limiting posts are symmetrically and vertically arranged on the corresponding strip plates, and each set of limiting posts includes two symmetrically distributed limiting posts.

3. The leaf spring assembly equipment according to claim 1, characterized in that, The feeding device includes a feeding frame, multiple conveying rollers, multiple belt drive mechanisms, and a fourth drive mechanism, wherein... The feeding rack is located on one side of the frame box, and the output end of the feeding rack extends into the frame box, and the side wall of the feeding rack is provided with a discharge port facing the chain. Multiple conveying rollers are equidistantly arranged side by side and rotatably mounted on the feeding frame, and one end of the rotating shaft of the multiple conveying rollers is connected in series through multiple belt drive mechanisms; The fourth drive mechanism is mounted on the feeding frame, and the output end of the fourth drive mechanism is connected to the other end of the shaft of one of the conveying rollers.

4. The leaf spring assembly equipment according to claim 1, characterized in that, The top-pressure fixing device includes a U-shaped pressure plate, two guide rods, a telescopic mechanism, a fifth drive mechanism, a splined shaft, a spring, and an internal hexagonal head. The U-shaped pressure plate is positioned above the assembly table; The two guide rods are fixedly mounted side by side and vertically on the U-shaped pressure plate, and the top ends of the two guide rods can be moved through the top wall of the frame box. The telescopic mechanism is installed on the top wall of the frame box, and the output end of the telescopic mechanism is fixedly connected to the U-shaped pressure plate. The fifth drive mechanism is disposed inside the U-shaped pressure plate, and the output end of the fifth drive mechanism is provided with a spline groove; The spline shaft is movably disposed within the spline groove; The spring is disposed in the spline groove, and one end of the spring is connected to the end wall of the spline groove, and the other end of the spring is connected to one end of the spline shaft. The internal hex head is fixedly connected to the other end of the splined shaft.

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