Full-automatic solid tire press-fitting machine

Abstract

This utility model discloses a fully automatic solid tire pressing machine, aiming to solve the technical problems of poor versatility, excessive manual intervention, and insufficient pressing efficiency and accuracy of existing solid tire pressing equipment. The pressing machine includes a conveyor roller conveyor, a four-column tire press, a lower cylinder displacement sensor, a lower tire pressing fixture, a solid tire, a solid tire rim, a rim positioning fixture, a lower lifting cylinder pin, a pin cylinder, a lower fixture lifting cylinder, a tire rim transfer arm, a pressing cylinder displacement sensor, a tire pressing cylinder, an upper tire pressing fixture, a tire centering arm, a roller conveyor motor, a lower lifting cylinder pin shaft, and an electrical control system. The self-adaptive clamping structure of the tire rim transfer arm adapts to workpieces of different specifications, and the dual displacement sensors achieve precise control of pressing force and displacement. Combined with the automated transfer and loading / unloading mechanism, the entire process is automated.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing equipment technology, specifically relating to a fully automatic solid tire pressing machine. Background Technology

[0002] In the field of heavy vehicle manufacturing and repair, the assembly of solid tires and rims is one of the key processes, and its assembly quality directly affects the vehicle's driving safety and stability. Currently, the industry commonly uses a four-post press-fitting machine with specialized tooling to complete the press-fitting operation; however, this approach has the following problems in practical applications:

[0003] First, the equipment lacks versatility. Different specifications of solid tires require different pressing fixtures, and tooling needs to be disassembled and replaced when switching product types, resulting in low efficiency. Second, the pressing process is cumbersome. Most equipment requires manual loading and unloading, and manual pressing operation. Pressing displacement needs to be observed and judged manually, which not only increases labor intensity but also easily affects assembly accuracy due to excessive pressing force or displacement deviation, and may even damage the tire. At the same time, manual operation carries the risk of workpieces falling and getting injured, making it difficult to meet the needs of batch and high-precision assembly.

[0004] Therefore, there is a need to propose a solid tire pressing machine that is highly versatile, automated, and has excellent pressing accuracy and efficiency to solve the existing technical problems. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of existing solid tire pressing equipment and provide a fully automatic solid tire pressing machine. This machine solves the technical problems of poor versatility, excessive manual intervention, and insufficient pressing efficiency and accuracy of existing solid tire pressing equipment. It enables universal pressing of solid tires and rims of different specifications without the need for manual loading and unloading or manual operation, thus balancing pressing efficiency, accuracy, and operational safety.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A fully automatic solid tire pressing machine includes a conveyor roller (1), a four-post tire press (2), a lower cylinder displacement sensor (3), a lower tire pressing fixture (4), a solid tire (5), a solid tire rim (6), a rim positioning fixture (7), a lower lifting cylinder pin (8), a pin cylinder (9), a lower fixture lifting cylinder (10), a tire rim transfer arm (11), a pressing cylinder displacement sensor (12), a tire pressing cylinder (13), an upper tire pressing fixture (14), a tire centering arm (15), a roller conveyor motor (16), a lower lifting cylinder pin shaft (17), and an electrical control system.

[0008] The press fitting machine also includes a feeding centering mechanism and a press fitting centering mechanism; the feeding centering mechanism includes an automatic conveying centering box (18), a feeding slide (21), a feeding cylinder (22), and a feeding arm (23), which are used for precise centering during the workpiece loading stage; the press fitting centering mechanism includes an automatic solid tire press fitting centering box (45), a solid tire press fitting cylinder (47), and a press fitting centering arm (48), which work together with the tire centering arm (15) to achieve tire centering before press fitting;

[0009] The conveyor roller (1) is connected to the roller conveyor motor (16) for automatic loading and unloading of workpieces; the four-column tire press (2) provides a support frame for the press machine, and is equipped with a tire pressing cylinder (13) and a lower tooling lifting cylinder (10); the tire rim transfer arm (11) adopts an adaptive clamping structure for transferring solid tires (5) and solid tire rims (6) of different diameters.

[0010] The lower tire pressing fixture (4) is fixedly connected to the top of the piston rod of the lower fixture lifting cylinder (10) by high-strength bolts, and rises and falls synchronously with the piston rod; the lower lifting cylinder pin shaft (17) is nested in the end positioning hole of the lower lifting cylinder pin (8) to form a detachable transmission fit, ensuring the coaxiality of the pin extension and retraction action; the lower end of the piston rod of the tire pressing cylinder (13) is connected to the upper tire pressing fixture (14) to provide pressing power;

[0011] The tire centering arm (15) is set above the pressing area of ​​the four-post tire press (2) to assist the solid tire (5) in centering before pressing; the pressing cylinder displacement sensor (12) is connected to the tire pressing cylinder (13), and the lower cylinder displacement sensor (3) is connected to the lower tooling lifting cylinder (10). The two are used to monitor the displacement data of the corresponding cylinders in real time; the lower lifting cylinder pin (8) is connected to the pin cylinder (9) for locking the working position of the lower tooling lifting cylinder (10); the rim positioning fixture (7) is fixedly connected to the output end of the lower tooling lifting cylinder (10) to realize the positioning support of the solid tire rim (6);

[0012] The electrical control system is electrically connected to the roller conveyor motor (16), the pin cylinder (9), the lower tooling lifting cylinder (10), the tire pressing cylinder (13), the pressing cylinder displacement sensor (12), and the lower cylinder displacement sensor (3), respectively. It is used to receive sensor feedback data and control the actions of each actuator. The electrical control system has a built-in PID control algorithm. Based on the real-time feedback data of the pressing cylinder displacement sensor (12) and the lower cylinder displacement sensor (3), it dynamically adjusts the output force of the tire pressing cylinder (13) and the lifting speed of the lower tooling lifting cylinder (10) to realize closed-loop control of the pressing process.

[0013] In a preferred embodiment of this utility model, the tire rim transfer arm (11) is installed on one side of the top crossbeam of the four-post tire press (2). The clamping range of the tire rim transfer arm (11) can be automatically adjusted by the electronic control system. It is suitable for solid tires (5) and solid tire rims (6) with a diameter range of 300mm-900mm. It can cover the solid tire specifications of the mainstream models of heavy engineering vehicles and forklifts. There is no need to change special tooling, and the changeover efficiency is improved by more than 90%.

[0014] In a preferred embodiment of this utility model, the pressing force adjustment range of the tire pressing cylinder (13) is 300kN-1000kN, which can match the assembly requirements of solid tires with different hardness. The displacement measurement accuracy is 0.01mm, which can avoid tire cracking or rim deformation caused by pressing deviation, and the assembly qualification rate is increased to more than 99%.

[0015] In a preferred embodiment of this utility model, the conveying speed of the conveying roller (1) can be adjusted by an electronic control system. The conveying speed adjustment range of 0.1m / s-0.5m / s can be adapted to the conveying needs of workpieces of different weights. Heavy workpieces (weight ≥500kg) are conveyed at low speed to ensure stability, while light workpieces are conveyed at high speed to improve overall efficiency.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) High versatility and reduced production costs: This utility model, through the adaptive clamping structure of the tire and rim transfer arm, combined with the parameterized adjustment of clamping amplitude, pressing force and sensor threshold by the electronic control system, can realize the pressing operation of solid tires and rims of different specifications within the diameter range of 300mm-900mm without disassembling and replacing special tooling. This not only realizes the pressing of solid tires and rims of different specifications, but also reduces equipment investment costs and changeover time.

[0018] (2) Highly efficient and precise pressing, improving product quality: The equipment adopts a fully automated process design. Through the coordinated operation of the conveyor rollers and the tire rim transfer arm, the automatic loading and unloading of workpieces is achieved without manual intervention, which greatly improves the operating efficiency and meets the needs of mass production. At the same time, the tire pressing cylinder, together with the pressing cylinder displacement sensor and the lower cylinder displacement sensor, realizes dual closed-loop control of pressing force and displacement, achieving dual precise control of pressing force and displacement, avoiding damage to the tire, and improving the assembly qualification rate.

[0019] (3) Convenient and safe operation, reducing labor intensity: The fully automated operation process completely changes the traditional manual handling and manual operation mode. Operators only need to complete parameter setting and equipment start-up through the electrical control system to achieve continuous production, which significantly reduces labor intensity. In addition, the positioning support of the rim positioning fixture, the locking of the lower lifting cylinder pin, and the clamping and positioning of the tire centering arm ensure the stability of the workpiece during the pressing process, effectively avoiding the safety risk of workpiece falling and causing injury, and providing a safe working environment for operators. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view of a fully automatic solid tire pressing machine provided in an embodiment of the present invention.

[0022] Figure 2 This is a front structural diagram of a fully automatic solid tire pressing machine provided in an embodiment of the present invention.

[0023] Figure 3 This is a side view of the feeding and clamping mechanism of a fully automatic solid tire pressing machine according to an embodiment of the present invention.

[0024] Figure 4 This is a top view schematic diagram of the feeding and clamping mechanism of a fully automatic solid tire pressing machine provided in this embodiment of the present invention.

[0025] Figure 5 This utility model provides a schematic diagram of the feeding frame and feeding clamping mechanism of a fully automatic solid tire pressing machine.

[0026] Figure 6 This invention provides a schematic diagram of the pressing and clamping mechanism of a fully automatic solid tire pressing machine according to an embodiment of the present invention.

[0027] Figure 7 This invention provides a schematic diagram of the upper hydraulic cylinder component of a fully automatic solid tire pressing machine.

[0028] Figure 8 This is a full sectional view of the upper cylinder component of a fully automatic solid tire pressing machine provided in this embodiment of the utility model.

[0029] Figure 9 This invention provides a schematic diagram of the lower lifting component with tire wheel rim of a fully automatic solid tire pressing machine according to an embodiment of the present invention.

[0030] Figure 10 This invention provides a schematic diagram of the lower lifting component of a fully automatic solid tire pressing machine.

[0031] Figure 11 This invention provides a schematic diagram of the pin component of a fully automatic solid tire pressing machine according to an embodiment of the present invention.

[0032] Figure reference numerals: 1. Conveyor roller conveyor; 2. Four-column tire press; 3. Lower cylinder displacement sensor; 4. Lower tire pressing fixture; 5. Solid tire; 6. Ridge of solid tire; 7. Ridge positioning fixture; 8. Lower lifting cylinder pin; 9. Pin cylinder; 10. Lower fixture lifting cylinder; 11. Tire rim transfer arm; 12. Pressing cylinder displacement sensor; 13. Tire pressing cylinder; 14. Upper tire pressing fixture; 15. Tire centering arm; 16. Roller conveyor motor; 17. Lower lifting cylinder pin shaft; 18. Conveyor... 18. Automatic centering box; 19. Feeding hinge bracket; 20. Feeding centering cylinder hinge seat; 21. Feeding slide; 22. Feeding cylinder; 23. Feeding arm; 24. Arm clamp; 25. Arm bearing sleeve; 26. Feeding arm roller; 27. Feeding self-centering shaft; 28. Feeding hinge plate; 29. ​​Feeding connecting rod hinge; 30. First feeding hinge connecting rod; 31. Second feeding hinge connecting rod; 32. Feeding arm hinge shaft; 33. Self-centering shaft cover; 34. Feeding arm cylinder shaft; 35. Feeding shaft. 35. Loading box connecting seat, 36. Feeding cylinder shaft pressure plate, 37. Feeding clamping bracket spacer, 38. Feeding roller shaft pressure cover, 39. Displacement sensor bracket, 40. Feeding machine frame, 41. Cable chain, 42. Feeding frame connecting beam, 43. Feeding cylinder connector seat, 44. Buffer seat, 45. Solid tire press-fitting automatic centering box, 46. Press-fitting centering hinge bracket, 47. Solid tire press-fitting cylinder, 48. Press-fitting centering arm, 49. Press-fitting self-centering rotating shaft, 50. Tensioning sleeve, 51. Press-fitting centering hinge, 52. Lubricating clamp. Arm shaft cover 52, hinge seat 53, press-fit arm gearbox spacer 54, solid tire press-fit upper mold 55, semi-circular ring 56, anti-rotation clamping plate 57, press-fit hydraulic cylinder anti-collision shaft 58, oil-free bearing 59, solid tire upper mold washer 60, upper hydraulic cylinder rod 61, solid tire press-fit lower mold 62, lower mold guide post 63, guide post oil-free bearing cover 64, press-fit bearing guide sleeve 65, pressure plate 66, lifting hydraulic cylinder mounting plate 68, pin plate 69, pin side guide 70, insert plate cylinder seat 72. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The terms "upper," "lower," "front," "rear," "left," and "right," etc., used when describing the installation position or direction of the structure or components in this embodiment are based on the orientation shown in the accompanying drawings. They are merely for convenience of description, used to distinguish the relative positions of various components or directions, and do not represent the orientation of the device or functional component in this embodiment during use.

[0034] like Figures 1-11As shown, this utility model embodiment provides a fully automatic solid tire pressing machine, including a conveyor roller conveyor 1, a four-column tire press 2, a lower cylinder displacement sensor 3, a lower tire pressing fixture 4, a solid tire 5, a solid tire rim 6, a rim positioning fixture 7, a lower lifting cylinder pin 8, a pin cylinder 9, a lower fixture lifting cylinder 10, a tire rim transfer arm 11, a pressing cylinder displacement sensor 12, a tire pressing cylinder 13, an upper tire pressing fixture 14, a tire centering arm 15, a roller conveyor motor 16, a lower lifting cylinder pin shaft 17, and an electrical control system.

[0035] The conveyor roller conveyor 1 is horizontally positioned at the inlet and outlet ends of the equipment. Its internal rollers are connected to the conveyor motor 16 via chains. In other words, the conveyor roller conveyor 1 and the conveyor motor 16 provide power to the conveyor roller conveyor 1, enabling automatic loading and unloading of workpieces. The conveying speed of the conveyor roller conveyor 1 can be adjusted via an electronic control system, with an adjustment range of 0.1 m / s to 0.5 m / s. This adapts to the conveying needs of workpieces of different weights. Heavy workpieces (weight ≥ 500 kg) are conveyed at low speed to ensure stability, while light workpieces are conveyed at high speed to improve overall efficiency.

[0036] The four-post tire press 2 has a frame structure, consisting of four uprights, an upper crossbeam, and a lower crossbeam, forming a stable pressing work space. The four-post tire press 2 provides the mounting support frame for the pressing machine, and internally it is equipped with a tire pressing cylinder 13 and a lower tooling lifting cylinder 10. The lower end of the piston rod of the tire pressing cylinder 13 is connected to the upper tire pressing tool 14 to provide pressing power. Its pressing force adjustment range is 300kN-1000kN, which can be precisely set according to the assembly requirements of different tire specifications. It can match the assembly requirements of solid tires of different hardness. The displacement measurement accuracy of 0.01mm avoids tire cracking or rim deformation caused by pressing deviations, increasing the assembly qualification rate to over 99%.

[0037] The tire and rim transfer arm 11 is installed on one side of the top crossbeam of the four-post tire press 2. It adopts a pneumatic clamping structure, and its inner side is equipped with an elastic anti-slip pad. The opening and closing range of the arm can be automatically adjusted by the electronic control system. It is used to transfer solid tires 5 and solid tire rims 6 with a diameter range of 300mm-1200mm, achieving stable transfer of workpieces of different specifications. It can cover the solid tire specifications of mainstream models such as heavy engineering vehicles and forklifts, without the need to change special tooling, improving changeover efficiency by more than 90%. This press machine can adapt to the following solid tire specifications: diameter 300mm-900mm, width 150mm-300mm, weight 300kg-1000kg; and the following solid tire rim specifications: diameter 300mm-900mm, thickness 150mm-300mm, material Q235 or 45# steel, covering more than 80% of the assembly needs of solid tires and rims for heavy vehicles.

[0038] The lower tire pressing fixture 4 is installed below the pressing operation area of ​​the four-post tire press 2, specifically at the top of the piston rod of the lower fixture lifting cylinder 10, forming a corresponding or cooperative support structure with the rim positioning fixture 7. Its installation height is adjusted synchronously with the extension and retraction of the lower fixture lifting cylinder 10, always positioned below the reference position for the pressing fit between the solid tire 5 and the solid tire rim 6, directly corresponding to the tire pressing cylinder 13 and the upper tire pressing fixture 14, ensuring the vertical transmission of pressing force.

[0039] The lower tire pressing fixture 4 is connected to the lower fixture lifting cylinder 10. In this embodiment, the lower tire pressing fixture 4 is fixedly connected to the top of the piston rod of the lower fixture lifting cylinder 10 by bolts or welding, and rises and falls synchronously with the extension and retraction of the piston rod. This rigid connection ensures that the power of the lower fixture lifting cylinder 10 can be directly transmitted to the lower tire pressing fixture 4, and its lifting action adjusts the initial alignment height between the rim and the tire, adapting to workpieces of different thicknesses.

[0040] The lower tire pressing fixture 4 is used to support the solid tire rim 6, and the upper tire pressing fixture 14 is used to apply downward pressure to the solid tire 5. The two are aligned vertically to ensure that the pressing force is transmitted vertically and to avoid workpiece displacement during the pressing process.

[0041] The tire centering arms 15 are symmetrically arranged on both sides of the tire pressing cylinder 13, and are fixedly connected to the upper crossbeam of the four-post tire press 2 via a bracket. They employ a symmetrical clamping structure, and after the solid tire 5 is moved to directly above the rim, the opposing clamping action assists in centering the tire, ensuring the assembly alignment accuracy between the tire and the rim. In this embodiment, the tire centering arms 15 are positioned above the pressing area of ​​the four-post tire press 2 to assist in centering the solid tire 5 before pressing.

[0042] The press-fit cylinder displacement sensor 12 is connected to the tire press-fit cylinder 13, and the lower cylinder displacement sensor 3 is connected to the lower tooling lifting cylinder 10. Both are used to monitor the displacement data of the corresponding cylinders in real time. The displacement measurement accuracy of the press-fit cylinder displacement sensor 12 and the lower cylinder displacement sensor 3 is not less than 0.01mm. The lower lifting cylinder pin 8 is connected to the pin cylinder 9 for transmission, and is used to lock the working position of the lower tooling lifting cylinder 10. The rim positioning fixture 7 is fixedly connected to the output end of the lower tooling lifting cylinder 10, and is used to realize the positioning support of the solid tire rim 6.

[0043] Specifically, the press-fit cylinder displacement sensor 12 is fixedly installed on the outside of the cylinder body of the tire press-fit cylinder 13 via a flange, and its detection end is connected to the piston rod of the cylinder to monitor the displacement of the tire press-fit cylinder 13 in real time. The lower cylinder displacement sensor 3 is installed on one side of the lower tooling lifting cylinder 10, and its detection end is connected to the piston rod of the lower tooling lifting cylinder 10 to monitor the lifting displacement of the lower tooling lifting cylinder 10. The displacement measurement accuracy of both is not less than 0.01mm, and the real-time acquired displacement data can be transmitted to the electronic control system to form a closed-loop control.

[0044] The lower tooling lifting cylinder 10 is vertically installed at the center of the lower crossbeam of the four-post tire press 2. The upper end of its piston rod is fixedly connected to the rim positioning fixture 7. The top of the rim positioning fixture 7 is provided with a positioning groove that matches the solid tire rim 6, which is used to achieve precise positioning support for the rim. The lower lifting cylinder pin 8 is horizontally set on one side of the cylinder body of the lower tooling lifting cylinder 10 and is connected to the piston rod of the pin cylinder 9. When the rim positioning fixture 7 rises to the set height, the pin cylinder 9 drives the lower lifting cylinder pin 8 to extend and insert into the positioning hole of the piston rod of the lower tooling lifting cylinder 10, thereby locking the position of the lower tooling lifting cylinder 10 and ensuring stability during the pressing process.

[0045] The lower lifting cylinder pin shaft 17 is installed in the lower crossbeam area of ​​the four-post tire press 2, specifically on the side near the cylinder body of the lower tooling lifting cylinder 10. It forms a cooperative assembly structure with the lower lifting cylinder pin 8 and pin cylinder 9. The installation orientation of the lower lifting cylinder pin shaft 17 is horizontally aligned with the piston rod of the lower tooling lifting cylinder 10, ensuring precise alignment with the pre-set positioning hole on the piston rod of the lower tooling lifting cylinder 10. The connection between the lower lifting cylinder pin shaft 17 and the lower lifting cylinder pin 8 is the direct component for achieving the positioning and locking function.

[0046] The press fitting machine also includes a feeding centering mechanism and a press fitting centering mechanism; the feeding centering mechanism includes an automatic conveying centering box 18, a feeding slide 21, a feeding cylinder 22, and a feeding arm 23, which are used for precise centering during the workpiece loading stage; the press fitting centering mechanism includes an automatic solid tire press fitting centering box 45, a solid tire press fitting cylinder 47, and a press fitting centering arm 48, which work together with the tire centering arm 15 to achieve tire centering positioning before press fitting.

[0047] The electrical control system integrates a PLC controller, a touch screen operation panel, and a drive module. These are electrically connected to the roller conveyor motor 16, pin cylinder 9, lower tooling lifting cylinder 10, tire pressing cylinder 13, pressing cylinder displacement sensor 12, and lower cylinder displacement sensor 3, respectively. This system receives sensor feedback data and controls the actions of each actuator. Operators can input workpiece specifications and preset pressing force and displacement thresholds through the electrical control system. The system automatically controls the actions of each actuator based on sensor feedback data, achieving automated operation of the pressing process. The system incorporates a PID control algorithm, dynamically adjusting the output force of the tire pressing cylinder 13 and the lifting speed of the lower tooling lifting cylinder 10 based on real-time feedback data from the pressing cylinder displacement sensor 12 and the lower cylinder displacement sensor 3, thus achieving closed-loop control of the pressing process.

[0048] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the fully automatic solid tire press includes a feeding and centering mechanism (labeled 18-44). The feeding and centering mechanism works in conjunction with the conveyor roller 1 and the tire rim transfer arm 11 to achieve precise conveying and centering of the workpiece during the loading stage, ensuring the stability of the transfer process.

[0049] The automatic centering box 18 is bolted to the top of the feeding carriage 21. Internally, it forms a transmission connection with the feeding self-centering shaft 27 and the feeding clamp 23, and simultaneously communicates with the electrical control system. Its function is to serve as the core control unit for feeding and centering. It receives commands from the electrical control system and drives the feeding clamp 23 through its internal transmission structure to achieve adaptive centering and clamping, ensuring that the solid tire 5 or solid tire rim 6 remains centered during transport.

[0050] The feeding hinge bracket 19 is welded to the crossbeam of the feeding machine frame 40, and is rotatably connected to the feeding arm 23 through the feeding hinge plate 28 and the feeding arm hinge shaft 32. Its function is to provide a stable support point for the feeding arm 23, ensuring the structural rigidity of the arm during opening and closing movements and preventing deformation due to the weight of the workpiece.

[0051] The feeding arm cylinder hinge seat 20 is fixed to the side of the feeding slide 21 and is hinged to the cylinder body of the feeding cylinder 22 via a pin. The cylinder piston rod is linked to the feeding arm 23 via the feeding arm cylinder shaft 34. Function: It serves as the installation reference for the feeding cylinder 22 and adapts to the opening and closing angle changes of the feeding arm 23 through the hinge structure, ensuring efficient transmission of cylinder power.

[0052] The feeding carriage 21 is slidably connected to the feeding frame 40 via guide rails, fixed at the bottom to the drag chain 41, and equipped with components such as the automatic centering box 18 and the feeding arm 23 at the top, forming a power collaboration with the roller conveyor motor 16. Its function is to enable the feeding mechanism to move horizontally along the feeding frame 40, cooperating with the conveyor roller 1 to complete the precise transfer of workpieces, while the drag chain 41 simultaneously collects the cables during the movement.

[0053] The feeding cylinder 22 is fixed by the feeding clamp cylinder hinge seat 20, and the piston rod is locked to the feeding arm cylinder shaft 34 by the feeding cylinder shaft pressure plate 36 and electrically connected to the electrical control system. Function: To provide the power source for clamping and releasing the feeding arm 23, and to adjust the output force according to the instructions of the electrical control system to adapt to the clamping requirements of workpieces of different specifications.

[0054] The feeding arm 23 is hinged to the feeding hinge bracket 19 via the feeding arm hinge shaft 32. The arm clamping block 24 is fixed to the inside by bolts, and the end is equipped with a feeding arm roller 26, which is connected to the feeding self-centering shaft 27 for transmission. Function: Directly contacts and clamps the workpiece. The elastic anti-slip design of the arm clamping block 24 avoids workpiece damage, and the feeding arm roller 26 reduces frictional resistance during workpiece transfer.

[0055] The clamping block 24 is detachably fixed to the inside of the feeding arm 23 by bolts, and is made of elastic wear-resistant rubber. Its function is to increase the friction with the workpiece surface and at the same time buffer the clamping force to prevent the solid tire 5 or solid tire rim 6 from being scratched or deformed during the clamping process.

[0056] The arm bearing sleeve 25 is nested in the connection between the feeding arm 23 and the feeding arm hinge shaft 32, with a clearance fit between its inner side and the shaft body. Its function is to reduce frictional loss during the rotation of the feeding arm 23, improve the smoothness of the opening and closing action, and extend the service life of the component.

[0057] The feeding arm with roller 26 is mounted on the end of the feeding arm 23 via a rotating shaft and can rotate freely. Its function is to convert sliding friction into rolling friction when the workpiece is transferred between the arms, reducing transfer resistance and preventing workpiece surface wear.

[0058] The self-centering feed shaft 27 passes through the automatic centering box 18 and is sealed at both ends by the self-centering shaft cover 33. It forms a linkage structure with the feed arm 23, the first feed hinge connecting rod 30, and the second feed hinge connecting rod 31. Function: To transmit the power of the automatic centering box 18 and drive the feed arms 23 on both sides to open and close synchronously, ensuring the centering accuracy of the workpiece.

[0059] One end of the feeding hinge plate 28 is hinged to the feeding hinge bracket 19 via a pin, and the other end is connected to the first feeding hinge connecting rod 30 via the feeding connecting rod hinge 29. Function: As an intermediate component for power transmission, it coordinates the movements of the feeding arm 23 and the first feeding hinge connecting rod 30, ensuring the synchronicity of the arm's opening and closing.

[0060] The feeding connecting rod hinge 29 is hinged to the feeding hinge plate 28, the first feeding hinge connecting rod 30, and the second feeding hinge connecting rod 31, providing a rotation fulcrum for multi-bar transmission. Its function is to eliminate angular deviations during transmission, ensure the stability of power transmission, and prevent component jamming.

[0061] The first feeding hinge connecting rod 30 and the second feeding hinge connecting rod 31 are connected at both ends to the feeding hinge plate 28 and the feeding arm 23 respectively via the feeding connecting rod hinge 29, forming a symmetrical transmission structure. Function: To realize the symmetrical transmission of power from the feeding cylinder 22, ensure that the opening and closing amplitudes of the feeding arms 23 on both sides are consistent, and improve the centering accuracy of the workpiece.

[0062] The feeding arm hinge shaft 32 passes through the feeding arm 23 and the feeding hinge bracket 19, and is positioned at both ends by bearings. Its function is to serve as the rotation axis of the feeding arm 23, ensuring precise positioning of the arm's movement and improving structural stability.

[0063] The self-centering shaft cover 33 is fixed to both ends of the automatic centering box 18 by bolts, forming a sealed fit with the feeding self-centering shaft 27. Its function is to prevent dust and oil from entering the shaft transmission parts, protect the internal structure, and extend the service life of the shaft.

[0064] One end of the feeding arm cylinder shaft 34 is threadedly connected to the piston rod of the feeding cylinder 22, and the other end is fixed to the feeding arm 23 via the feeding cylinder shaft pressure plate 36. Function: To transmit the power of the feeding cylinder 22 and drive the feeding arm 23 to complete the opening and closing action. Its rigid structure ensures that the power transmission is lossless.

[0065] The feeding bearing housing connecting seat 35 is welded to the top of the feeding slide 21 and bolted to the bottom of the automatic centering box 18. It contains a bearing assembly. Its function is to fix and support the automatic centering box 18, and to reduce rotational friction of the feeding self-centering shaft 27 through the internal bearing.

[0066] The feeding cylinder shaft pressure plate 36 locks the feeding arm cylinder shaft 34 to the feeding arm 23 with bolts, providing axial positioning for the shaft. Function: To prevent axial movement of the feeding arm cylinder shaft 34 during power transmission and ensure connection stability.

[0067] The feeding clamping bracket spacer 37 is fitted in the middle of the feeding arm hinge shaft 32, between the two feeding arms 23, and controls the initial distance between the arms. Its function is to limit the minimum opening and closing range of the feeding arms 23, preventing excessive clamping and damage to the workpiece, while also ensuring structural symmetry.

[0068] The feed roller shaft cover 38 is fixed to the end of the feed arm 23 by bolts, covering the end of the rotating shaft of the feed arm roller 26. Function: To axially position the rotating shaft of the feed arm roller 26, preventing it from falling off, and also to provide a dustproof seal.

[0069] The displacement sensor bracket 39 is welded to the side of the feeder frame 40, and the top is fixed with bolts to the displacement sensor (electrically connected to the electrical control system). Its function is to provide an installation reference for the displacement sensor, ensuring accurate monitoring of the movement distance of the feed carriage 21, and achieving closed-loop control of the conveying position.

[0070] The feeding frame 40 is fixed to the ground with anchor bolts. The top-mounted guide rail is slidably connected to the feeding slide 21, and it is fixed to the main frame of the equipment through the feeding frame connecting beam 42. Function: As the overall support frame of the feeding mechanism, it ensures the installation accuracy and movement stability of each component, and forms a collaborative working space with the four-column tire press 2.

[0071] One end of the cable chain 41 is fixed to the bottom of the feeding carriage 21, and the other end is fixed to the end of the feeding frame 40. It internally houses the cables and air hoses. Its function is to extend and retract synchronously with the movement of the feeding carriage 21, protecting the cables and air hoses from wear and preventing them from becoming entangled and interfering with equipment operation.

[0072] The feeding frame connecting beam 42 is welded between the feeding machine frame 40 and the uprights of the four-column tire press 2, and is reinforced with bolts. Its function is to enhance the connection rigidity between the feeding machine frame 40 and the main body of the equipment, preventing positioning deviations caused by vibration during the feeding process.

[0073] The feeding cylinder connector 43 is fixed to the air inlet of the feeding cylinder 22 and is connected to the air source pipeline via a quick connector. Function: To enable quick connection between the air source pipeline and the feeding cylinder 22, facilitating equipment maintenance and air pipe replacement.

[0074] The buffer seat 44 is fixed to both ends of the feeder frame 40, and is equipped with a buffer inside, corresponding to the end of the feed carriage 21. Function: When the feed carriage 21 moves to the end of its stroke, the buffer absorbs the impact force, avoids damage to components caused by hard collisions, and improves the stability of equipment operation.

[0075] like Figure 6 and Figure 7As shown, the fully automatic solid tire press machine includes a pressing centering mechanism (reference numerals 45-54). This pressing centering mechanism is installed above the pressing area of ​​the four-post tire press 2 and works in conjunction with the tire centering arm 15 to achieve precise centering positioning of the solid tire 5 before pressing, ensuring the alignment accuracy between the tire and the rim.

[0076] The solid tire press-fit automatic centering box 45 is bolted to the top of the press-fit centering hinge bracket 46. Internally, it is connected to the press-fit self-centering shaft 49 and the press-fit centering arm 48, and communicates with the electronic control system. Function: Receives commands from the electronic control system, drives the press-fit centering arm 48 to complete symmetrical clamping action, achieves the centering positioning of the solid tire 5, and ensures that the center axis of the tire coincides with that of the solid tire rim 6.

[0077] The press-fit centering hinge bracket 46 is welded to the bottom of the upper crossbeam of the four-post tire press 2, and is fixed to the solid tire press-fit automatic centering box 45 and the solid tire press-fit cylinder 47 by bolts. Function: To provide overall support for the press-fit centering mechanism, ensure the installation accuracy of each component, and withstand the clamping force during the press-fit centering process.

[0078] The cylinder body of the solid tire press-fit cylinder 47 is fixed to the press-fit centering hinge bracket 46 by bolts. The piston rod is connected to the press-fit centering hinge 51 by a pin and is electrically connected to the electronic control system. Function: To provide clamping power to the press-fit centering arm 48, and to adjust the output force according to the tire specifications to avoid excessive clamping force that could damage the tire.

[0079] The pressing and centering arm 48 is connected to the solid tire pressing automatic centering box 45 via the pressing and centering shaft 49. The centering arm is linked to the solid tire pressing cylinder 47 via the pressing and centering hinge 51. Anti-slip pads are attached to the inner side. Function: It directly clamps the side of the solid tire 5, correcting tire position deviations through symmetrical clamping actions to achieve precise centering, laying the foundation for subsequent pressing operations.

[0080] The self-centering shaft 49 passes through the automatic centering box 45 for solid tire pressing, and is fixed at both ends by tension sleeves 50, forming a rigid connection with the pressing centering arm 48. Its function is to transmit power to the automatic centering box 45 for solid tire pressing, ensuring that the pressing centering arms 48 on both sides open and close synchronously, thus guaranteeing centering accuracy.

[0081] The tensioning sleeve 50 is nested at the connection between the press-fitted self-centering shaft 49 and the press-fitted centering arm 48, and is tightened with bolts to achieve an interference fit. Function: To enhance the connection rigidity between the shaft and the arm, prevent relative slippage during transmission, and improve the response accuracy of the centering action.

[0082] The press-fit centering hinge 51 is hinged to the piston rod of the solid tire press-fit cylinder 47 and the press-fit centering arm 48, forming a power transmission link. Function: It converts the linear motion of the cylinder into the rotational motion of the arm, adapts to the changes in the opening and closing angle of the arm, and ensures smooth power transmission.

[0083] The lubricating arm shaft cover 52 is fixed to the end of the rotating shaft of the press-fitted arm 48 by bolts and is filled with grease. Its function is to seal and lubricate the end of the press-fitted self-centering shaft 49, reducing rotational friction and extending the service life of the component.

[0084] The hinge seat 53 is welded to the bottom of the press-fit hinge bracket 46 and is hinged to the press-fit hinge 51 via a pin. Its function is to provide a fixed fulcrum for the press-fit hinge 51, ensuring the stability of the hinge's movement and preventing offset during power transmission.

[0085] The press-fitting clamping arm gearbox spacer 54 is installed in the middle of the press-fitting self-centering shaft 49, located between the solid tire press-fitting automatic centering box 45 and the press-fitting clamping arm 48. Its function is to limit the installation spacing of the press-fitting clamping arm 48, ensure symmetrical distribution of the clamping arms on both sides, and isolate the lubricating oil inside the gearbox from external dust.

[0086] The fully automatic solid tire press machine includes an upper hydraulic cylinder press mechanism (reference 55-61), which is directly connected to the tire press cylinder 13. The core function is to transmit the press power and execute the press action precisely, ensuring the controllability of the press force and displacement.

[0087] The solid tire pressing upper mold 55 is fixed to the lower end of the upper cylinder rod 61 by bolts, corresponding vertically to the solid tire pressing lower mold 62, and is positioned on the inside by a semi-circular ring 56 and an anti-rotation clamping plate 57. Function: It directly contacts the top of the solid tire 5, and evenly transmits the pressure of the tire pressing cylinder 13 to the tire surface to achieve pressing and bonding of the tire and the rim.

[0088] The semi-circular ring 56 is nested at the connection between the solid tire press-fit upper mold 55 and the upper cylinder rod 61, and cooperates with the anti-rotation clamping plate 57 to form circumferential positioning. Function: To assist in positioning the installation angle of the solid tire press-fit upper mold 55, ensure that the reference surfaces of the upper mold and the lower mold are parallel, and improve the press-fit accuracy.

[0089] The anti-rotation clamp 57 is bolted to the side of the solid tire pressing mold 55, forming a snap-fit ​​with the semi-circular ring 56 to restrict the circumferential rotation of the upper mold. Function: To prevent the solid tire pressing mold 55 from rotating due to friction during the pressing process, avoiding tire misalignment and ensuring assembly accuracy.

[0090] The anti-collision shaft 58 of the press-fit cylinder is fixed to the bottom of the cylinder body of the tire press-fit cylinder 13, located outside the upper cylinder rod 61, and corresponding to the top of the solid tire press-fit upper mold 55. Function: When the piston rod of the tire press-fit cylinder 13 extends excessively, it contacts the solid tire press-fit upper mold 55 to form a mechanical limit, preventing the cylinder from being damaged by overload.

[0091] The oilless bearing 59 is nested in the piston rod guide section of the tire pressing cylinder 13, and has a clearance fit with the upper cylinder rod 61. Its function is to reduce the frictional resistance during the lifting and lowering of the upper cylinder rod 61, improve the smoothness of the pressing action, and prevent lubricating oil from contaminating the workpiece.

[0092] A solid tire upper mold washer 60 is placed between the solid tire press-fit upper mold 55 and the upper cylinder rod 61, and is made of elastic metal. Its function is to buffer the impact force during the press-fit process, compensate for machining errors in the connecting surfaces, and ensure uniform pressure transmission.

[0093] The upper cylinder rod 61 serves as the piston rod of the tire pressing cylinder 13. Its upper end is fixed to the piston inside the cylinder, and its lower end is bolted to the solid tire pressing mold 55, and it is linked to the detection end of the pressing cylinder displacement sensor 12. Its function is to transmit the output force of the tire pressing cylinder 13, driving the solid tire pressing mold 55 to complete the lifting and pressing action. Its displacement is monitored in real time by the pressing cylinder displacement sensor 12, achieving closed-loop control.

[0094] like Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, the fully automatic solid tire pressing machine includes a lower lifting and positioning mechanism (reference numerals 62-68). This lower lifting and positioning mechanism works in conjunction with the lower tooling lifting cylinder 10 to achieve the positioning support and height adjustment of the solid tire rim 6, and works with the upper cylinder mechanism to complete the pressing operation.

[0095] The solid tire pressing lower mold 62 is fixed to the top of the piston rod of the lower tooling lifting cylinder 10 by bolts. The top is provided with a positioning groove that matches the solid tire rim 6 and slides in cooperation with the lower mold guide post 63. Function: Support the solid tire rim 6 and achieve precise positioning. It cooperates with the solid tire pressing upper mold 55 to form a pressing reference, ensuring the assembly alignment of the tire and the rim.

[0096] The lower mold guide post 63 is symmetrically fixed to the top of the pressure plate 66, passes through the guide hole of the solid tire press-fit lower mold 62, and is sealed at the top by the guide post oilless bearing cap 64. Function: To provide guidance for the lifting and lowering movement of the solid tire press-fit lower mold 62, prevent the lower mold from shifting, ensure the coaxiality of the upper and lower molds, and improve the press-fit accuracy.

[0097] The guide post oilless bearing cap 64 is fixed to the top of the lower mold guide post 63 by bolts, and an oilless bearing is installed inside to mate with the guide hole of the solid mold 62. Its function is to seal the top of the guide post, preventing dust from entering the guide area, and to reduce friction during the lifting and lowering of the lower mold via the oilless bearing.

[0098] The press-fit bearing guide sleeve 65 is nested within the guide hole of the solid tire press-fit lower die 62, and has a clearance fit with the lower die guide post 63. Function: To further improve the guiding accuracy of the lower die lifting, reduce direct friction between the guide post and the lower die, and extend the service life of the components.

[0099] The pressure plate 66 is fixed to the top of the lifting cylinder mounting plate 68 by bolts, and the top supports the lower mold guide column 63 and the cylinder body of the lower tooling lifting cylinder 10. Function: To withstand the reaction force during the pressing process, its high-strength material prevents deformation due to excessive pressure, and ensures the structural stability of the lower lifting mechanism.

[0100] The lower tooling lifting cylinder 10 is bolted between the pressure plate 66 and the lifting cylinder mounting plate 68. The top of the piston rod is fixed to the solid tire pressing lower mold 62 and is linked to the detection end of the lower cylinder displacement sensor 3, and electrically connected to the electronic control system. Its function is to provide power for lifting the lower mold, adjust the height of the solid tire rim 6 according to the instructions of the electronic control system, and cooperate with the upper cylinder to complete the pressing operation. Its displacement is monitored in real time by the lower cylinder displacement sensor 3.

[0101] The lifting cylinder mounting plate 68 is welded to the center of the lower crossbeam of the four-column tire press 2 and fixed to the cylinder body of the lower tooling lifting cylinder 10 by bolts. The bottom of the plate is in contact with the ground through a shock-absorbing pad. Function: To fix the lower tooling lifting cylinder 10 and provide stable support; the shock-absorbing pad absorbs vibrations during the pressing process and prevents overall equipment resonance.

[0102] The fully automatic solid tire pressing machine includes a pin locking mechanism (reference numerals 69-72). This pin locking mechanism works in conjunction with the lower lifting cylinder pin 8 and the pin cylinder 9 to lock the working position of the lower tooling lifting cylinder 10, ensuring the stability of the pressing process.

[0103] The pin plate 69 is fixed to the side of the piston rod of the lower tooling lifting cylinder 10 by bolts, and has a positioning hole adapted to the lower lifting cylinder pin 8, which slides in cooperation with the pin side guide 70. Function: After the lower tooling lifting cylinder 10 rises to the set height, the lower lifting cylinder pin 8 is inserted into its positioning hole to lock the position of the piston rod and prevent the rim from shifting during the pressing process.

[0104] The pin side guide 70 is fixed to the side of the insert plate cylinder seat 72 and slides with the side of the pin plate 69. Its function is to provide guidance for the lifting and lowering movement of the pin plate 69, ensuring precise alignment between the positioning hole and the lower lifting cylinder pin 8, and guaranteeing the reliability of the locking action.

[0105] The pin cylinder 9, also known as the pin-type cylinder 9, has its cylinder body fixed to the insert plate cylinder seat 72 by bolts. Its piston rod is fixed to the lower lifting cylinder pin 8 and is electrically connected to the electronic control system. Its function is to provide extension and retraction power for the lower lifting cylinder pin 8, and to perform locking or unlocking actions according to commands from the electronic control system, responding to the rhythm requirements of the pressing process.

[0106] The insert cylinder seat 72 is welded to the side of the lower crossbeam of the four-post tire press 2, adjacent to the lifting cylinder mounting plate 68, and the top of which fixes the pin cylinder 9 and the pin side guide 70. Function: To provide an installation reference for the various components of the pin locking mechanism, ensure the coaxiality of the cylinder and the pin, and ensure precise and efficient locking action.

[0107] To ensure the safety of equipment operation and the reliability of workpiece assembly, this fully automatic solid tire press machine is equipped with a triple safety protection mechanism, as follows:

[0108] Hardware emergency stop protection: Red emergency stop buttons are installed on both the front and rear operating sides of the four-column tire press 2. The emergency stop buttons are designed to be waterproof and dustproof. When pressed, they can immediately cut off the power to the roller conveyor motor 16, the pin cylinder 9, the lower tool lifting cylinder 10, and the tire pressing cylinder 13. All actuators will stop moving instantly to avoid equipment collisions or personal injury in emergency situations.

[0109] Intelligent overload protection: The electronic control system has a built-in safety threshold algorithm with two preset core safety parameters: First, the upper limit of pressing force, the maximum output force of the tire pressing cylinder 13 does not exceed 500kN (which is consistent with the upper limit of the medium pressing force adjustment range of the tire pressing cylinder 13). When the pressure data fed back by the pressing cylinder displacement sensor 12 exceeds the limit, the system automatically triggers the piston rod of the tire pressing cylinder 13 to retract and displays a "pressure overload" alarm on the operation panel; Second, the displacement deviation threshold, during the pressing process, the real-time displacement difference between the lower cylinder displacement sensor 3 and the pressing cylinder displacement sensor 12 does not exceed ±0.02mm. If it exceeds this range (such as tire misalignment causing uneven pressing force), the system immediately stops the pressing action and controls the conveyor roller 1 to stop to prevent tire cracking or rim deformation.

[0110] Physical area protection: At the feed end and discharge end of conveyor roller 1 and around the pressing area of ​​the four-column tire press 2, detachable guardrails with a height of 1.2m are installed (made of φ20mm round steel welded with a spacing of ≤150mm). The guardrail door lock is linked to the equipment start circuit - the equipment can only enter the running state when the guardrail door lock is closed; if the guardrail is opened during operation, the system will immediately stop and alarm to prevent personnel from accidentally entering the pressing danger area.

[0111] The specific pressing operation steps of the fully automatic solid tire pressing machine of this utility model are as follows:

[0112] Step 1, Equipment Preparation Stage: The operator starts the electrical control system and inputs the specifications of the solid tire 5 and solid tire rim 6 to be pressed, including diameter and width. Based on the input parameters, the pressing force parameter setting range of the tire pressing cylinder 13 is preset in the system to 50kN-500kN. At the same time, the displacement thresholds of the pressing cylinder displacement sensor 12 and the lower cylinder displacement sensor 3 are set to ensure that the pressing process is carried out within the preset displacement range. Subsequently, the system self-checks the operating status of each component, including the rotational flexibility of the conveyor roller 1, the clamping reliability of the tire rim transfer arm 11, the signal transmission stability of each sensor, and the sealing performance of the cylinders and air cylinders. After confirming that there are no abnormalities, the system enters the ready-to-operate state.

[0113] Step 2, Workpiece Loading Stage: Place the solid tire rim 6 at the feed end of the conveyor roller 1, start the conveyor roller 1, and the roller conveyor motor 16 drives the roller shaft to rotate, conveying the rim to the pressing area inside the four-post tire press 2. At this time, the electrical control system controls the tire rim transfer arm 11 to move above the rim. The arm automatically opens and closes to adjust to the appropriate range and clamps the rim, then moves it directly above the rim positioning fixture 7. Next, the piston rod of the lower fixture lifting cylinder 10 extends upward, driving the rim positioning fixture 7 to rise, so that the rim falls into the positioning groove to complete the positioning. After the rim is positioned, the tire rim transfer arm 11 releases the rim and moves to the storage position of the solid tire 5, clamps the tire, and moves it directly above the positioned rim. At this time, the tire clamping arms 15 clamp each other in opposite directions, assisting the tire in centering and positioning, ensuring that the tire and the center axis of the rim coincide. After positioning is completed, the tire rim transfer arm 11 releases the tire and returns it to the initial position.

[0114] Step 3, Pressing Execution Stage: The electronic control system issues a command, driving the pin cylinder 9 to extend the lower lifting cylinder pin 8 horizontally, inserting it into the positioning hole of the piston rod of the lower tooling lifting cylinder 10, locking the position of the lower tooling lifting cylinder 10 to prevent rim displacement during pressing. Subsequently, the piston rod of the tire pressing cylinder 13 slowly extends downward, driving the upper tire pressing tool 14 to press the solid tire 5, achieving pressing and fitting between the tire and the rim. During the pressing process, the pressing cylinder displacement sensor 12 and the lower cylinder displacement sensor 3 collect the displacement data of the corresponding cylinders in real time and transmit the data to the electronic control system. The electronic control system analyzes and processes the data. When the displacement reaches a preset threshold or the pressing force fluctuates abnormally, the system automatically adjusts the running speed of the tire pressing cylinder 13 or stops the operation to ensure pressing accuracy and workpiece safety.

[0115] Step 4, Material Feeding and Cycling Stage: When the pressing operation reaches the preset displacement threshold and the pressing force is stable, the pressing is considered complete. The electrical control system issues commands sequentially. The piston rod of the tire pressing cylinder 13 retracts upward to its initial position, the lower lifting cylinder pin 8 retracts under the drive of the pin cylinder 9, and the piston rod of the lower tooling lifting cylinder 10 retracts downward, driving the rim positioning tool 7 to descend, so that the assembled tire rim assembly falls onto the conveyor roller 1. The conveyor roller 1 operates, transporting the finished product to the discharge end, completing one pressing cycle. When it is necessary to change to workpieces of different specifications, the operator only needs to re-enter the specification parameters of the new workpiece into the electrical control system. The system automatically adjusts the clamping range of the tire rim transfer arm 11, the pressing force of the tire pressing cylinder 13, and the displacement thresholds of each sensor. Without disassembling or replacing any parts, the pressing process for the new specification workpiece can be started, realizing continuous production.

[0116] This invention effectively solves the technical pain points of existing solid tire pressing equipment through reasonable structural design and automated control, taking into account versatility, precision and safety, and provides an efficient and reliable solution for the assembly of solid tires for heavy vehicles, with broad market application prospects.

[0117] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fully automatic solid tire pressing machine, characterized in that, Includes conveyor rollers (1), four-post tire press (2), lower cylinder displacement sensor (3), lower tire pressing fixture (4), solid tire (5), solid tire rim (6), rim positioning fixture (7), lower lifting cylinder pin (8), pin cylinder (9), lower fixture lifting cylinder (10), tire rim transfer arm (11), pressing cylinder displacement sensor (12), tire pressing cylinder (13), upper tire pressing fixture (14), tire centering arm (15), roller conveyor motor (16), lower lifting cylinder pin shaft (17), and electrical control system; The press fitting machine also includes a feeding centering mechanism and a press fitting centering mechanism; the feeding centering mechanism includes an automatic conveying centering box (18), a feeding slide (21), a feeding cylinder (22), and a feeding arm (23), which are used for precise centering during the workpiece loading stage; the press fitting centering mechanism includes an automatic solid tire press fitting centering box (45), a solid tire press fitting cylinder (47), and a press fitting centering arm (48), which work together with the tire centering arm (15) to achieve tire centering before press fitting; The conveyor roller (1) is connected to the roller conveyor motor (16) for automatic loading and unloading of workpieces; the four-column tire press (2) provides a support frame for the press machine, and is equipped with a tire pressing cylinder (13) and a lower tooling lifting cylinder (10); the tire rim transfer arm (11) adopts an adaptive clamping structure for transferring solid tires (5) and solid tire rims (6) of different diameters. The lower tire pressing fixture (4) is fixedly connected to the top of the piston rod of the lower fixture lifting cylinder (10) by high-strength bolts, and rises and falls synchronously with the piston rod; the lower lifting cylinder pin shaft (17) is nested in the end positioning hole of the lower lifting cylinder pin (8) to form a detachable transmission fit, ensuring the coaxiality of the pin extension and retraction action; the lower end of the piston rod of the tire pressing cylinder (13) is connected to the upper tire pressing fixture (14) to provide pressing power; The tire centering arm (15) is set above the pressing area of ​​the four-post tire press (2) to assist the solid tire (5) in centering before pressing; the pressing cylinder displacement sensor (12) is connected to the tire pressing cylinder (13), and the lower cylinder displacement sensor (3) is connected to the lower tooling lifting cylinder (10). The two are used to monitor the displacement data of the corresponding cylinders in real time; the lower lifting cylinder pin (8) is connected to the pin cylinder (9) for locking the working position of the lower tooling lifting cylinder (10); the rim positioning fixture (7) is fixedly connected to the output end of the lower tooling lifting cylinder (10) to realize the positioning support of the solid tire rim (6); The electrical control system is electrically connected to the roller conveyor motor (16), the pin cylinder (9), the lower tooling lifting cylinder (10), the tire pressing cylinder (13), the pressing cylinder displacement sensor (12), and the lower cylinder displacement sensor (3), respectively. It is used to receive sensor feedback data and control the actions of each actuator. The electrical control system has a built-in PID control algorithm. Based on the real-time feedback data of the pressing cylinder displacement sensor (12) and the lower cylinder displacement sensor (3), it dynamically adjusts the output force of the tire pressing cylinder (13) and the lifting speed of the lower tooling lifting cylinder (10) to realize closed-loop control of the pressing process.

2. The fully automatic solid tire pressing machine according to claim 1, characterized in that, The tire rim transfer arm (11) is installed on one side of the top crossbeam of the four-post tire press (2). The clamping range of the tire rim transfer arm (11) can be automatically adjusted by the electronic control system. It is suitable for solid tires (5) and solid tire rims (6) with a diameter range of 300mm-900mm. It can cover the solid tire specifications of the mainstream models of heavy engineering vehicles and forklifts. There is no need to change special tooling, and the changeover efficiency is improved by more than 90%.

3. The fully automatic solid tire pressing machine according to claim 1, characterized in that, The pressing force adjustment range of the tire pressing cylinder (13) is 300kN-1000kN, which can match the assembly requirements of solid tires with different hardness. The displacement measurement accuracy is 0.01mm, which can avoid tire cracking or rim deformation caused by pressing deviation, and the assembly qualification rate is increased to more than 99%.

4. The fully automatic solid tire pressing machine according to claim 1, characterized in that, The conveying speed of the conveying roller (1) can be adjusted by the electronic control system. The conveying speed adjustment range is 0.1m / s-0.5m / s, which can be adapted to the conveying needs of workpieces of different weights. Heavy workpieces are conveyed at low speed to ensure stability, while light workpieces are conveyed at high speed to improve overall efficiency.

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