Hydraulic cylinder assembly line automatic centering system
Patent Information
- Application Number
- CN202521684393.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-08-08
AI Technical Summary
[0011] The beneficial effects of this utility model are as follows: This utility model sets a platform plate on the lifting and adjusting mechanism inside the centering base, and then sets a first support and a second support that can move in opposite directions on the platform plate. After the first support and the second support move in opposite directions, they can support piston rods of different lengths, making the centering system of this utility model highly flexible in use. The first support and the second support can raise two points to support the piston rod, which can ensure the stability of the piston rod's centering movement and help improve centering efficiency.
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Figure CN224750595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic cylinder assembly technology, and in particular to an automatic centering system for hydraulic cylinder assembly lines. Background Technology
[0002] A hydraulic cylinder is an important actuator in a hydraulic system. It is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). A hydraulic cylinder typically consists of components such as a cylinder barrel, piston, piston rod, sealing device, cylinder head, and guide sleeve.
[0003] During the assembly of a hydraulic cylinder, one end of the piston rod needs to be inserted into the cylinder barrel and connected to the piston inside. During this process, the piston rod must be kept aligned within the cylinder barrel; otherwise, if one end of the piston rod impacts the cylinder barrel, it can cause damage or deformation to either the cylinder barrel or the piston rod, leading to insufficient sealing later and affecting the normal operation of the hydraulic cylinder. Existing alignment systems have relatively fixed structures and mostly only have one alignment point. For longer piston rods, one end needs to be manually lifted during assembly to ensure the piston rod is stably placed on the alignment system, resulting in poor stability and affecting the alignment effect to some extent. Therefore, this invention proposes an automatic alignment system for hydraulic cylinder assembly lines to address the shortcomings of existing technologies. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this invention is to provide an automatic centering system for hydraulic cylinder assembly lines. The first and second supports, moving in opposite directions, can support piston rods of different lengths, making the centering system highly flexible. The first and second supports raise two points to support the piston rod, ensuring the stability of the piston rod's centering movement and improving centering efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic centering system for a hydraulic cylinder assembly line includes a centering base, a lifting and adjusting mechanism, a first support, and a second support. The centering base has a lifting and adjusting mechanism inside, a platform plate on the lifting and adjusting mechanism, and a guide rail on the top of the platform plate. The first support and the second support are slidably connected to the guide rail via a first slide and a second slide, respectively. Supports are symmetrically arranged on the platform plate, and a drive rod is rotatably arranged between the two supports. The drive rod is driven by a self-locking motor and has a gear. The first slide has a first rack, and the second slide has a second rack. Both the first rack and the second rack mesh with the gear. Both the first and second supports are provided with centering and moving guide components on their inner walls.
[0006] A further improvement is that the lifting and adjusting mechanism includes an electric telescopic rod and a sliding groove. The centering base is equipped with an electric telescopic rod, the output end of which is connected to the bottom of the platform plate. The centering base has sliding grooves on both sides inside, and the two ends of the platform plate are slidably connected to the sliding grooves.
[0007] A further improvement is that: the centering base is provided with movable wheels at the four corners of the bottom, and the movable wheels are provided with brake pads.
[0008] A further improvement is that: a fixing plate is provided on both sides of one end of the centering base, and fixing bolts are provided on the fixing plate.
[0009] A further improvement is that the centering and moving guide assembly includes a groove and a guide roller. The first support and the second support are both provided with grooves on their inner walls. The guide roller is rotatably arranged inside the groove. There are multiple sets of guide rollers, and one side of each set of guide rollers extends out of the groove.
[0010] A further improvement is that the cross-sections of the first and second supports are inverted isosceles trapezoidal structures.
[0011] The beneficial effects of this utility model are as follows: This utility model sets a platform plate on the lifting and adjusting mechanism inside the centering base, and then sets a first support and a second support that can move in opposite directions on the platform plate. After the first support and the second support move in opposite directions, they can support piston rods of different lengths, making the centering system of this utility model highly flexible in use. The first support and the second support can raise two points to support the piston rod, which can ensure the stability of the piston rod's centering movement and help improve centering efficiency. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a schematic diagram of the lifting and adjusting mechanism of this utility model; Figure 3 This is a side view of the meshing structure of the gear with the first rack and the second rack of this utility model; Figure 4 This is a schematic diagram illustrating the working principle and structure of this utility model.
[0013] The components include: 1. Centering base; 2. Lifting and adjusting mechanism; 201. Electric telescopic rod; 202. Slide groove; 3. First support; 4. Second support; 5. Platform plate; 6. Guide rail; 7. First slide; 8. Second slide; 9. Support; 10. Drive rod; 11. Self-locking motor; 12. Gear; 13. First rack; 14. Second rack; 15. Moving wheel; 16. Fixing plate; 17. Fixing bolt; 18. Groove; 19. Guide roller. Detailed Implementation
[0014] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0015] Example 1 according to Figure 1-4 As shown, this embodiment proposes an automatic centering system for a hydraulic cylinder assembly line, including a centering base 1, a lifting and adjusting mechanism 2, a first support 3, and a second support 4. The centering base 1 is equipped with the lifting and adjusting mechanism 2, and a platform plate 5 is provided on the lifting and adjusting mechanism 2. A guide rail 6 is provided on the top of the platform plate 5. The first support 3 and the second support 4 are slidably connected to the guide rail 6 through a first slide 7 and a second slide 8, respectively. Supports 9 are symmetrically provided on the platform plate 5, and a drive rod 10 is rotatably provided between the two supports 9. The drive rod 10 is driven by a self-locking motor 11, and a gear 12 is provided on the drive rod 10. A first rack 13 is provided on the first slide 7, and a second rack 14 is provided on the second slide 8. Both the first rack 13 and the second rack 14 mesh with the gear 12. Centering moving guide components are provided on the inner walls of the first support 3 and the second support 4.
[0016] When using the automatic alignment system for hydraulic cylinder assembly lines of this utility model, the alignment base 1 is moved to a designated position, and then the platform plate 5 is adjusted to a designated height by the lifting adjustment mechanism 2, so that the piston rod of the hydraulic cylinder supported by the first support 3 and the second support 4 is concentrically set with the cylinder barrel clamped in a fixed position. Then, by pushing the piston rod on the first support 3 and the second support 4, one end of it is extended into the cylinder barrel to complete the alignment assembly.
[0017] The lifting and adjusting mechanism 2 includes an electric telescopic rod 201 and a sliding groove 202. The electric telescopic rod 201 is provided inside the centering base 1. The output end of the electric telescopic rod 201 is connected to the bottom of the platform plate 5. The sliding grooves 202 are provided on both sides of the inner side wall of the centering base 1. The two ends of the platform plate 5 are slidably connected to the sliding grooves 202. When the electric telescopic rod 201 is activated and its output end is extended, the platform plate 5 is driven to rise on the sliding groove 202; conversely, when it is deactivated, the platform plate 5 is driven to descend on the sliding groove 202.
[0018] The centering and guiding assembly includes a groove 18 and a guide roller 19. Grooves 18 are provided on the inner walls of both the first support 3 and the second support 4. A guide roller 19 is rotatably mounted inside each groove 18. Multiple sets of guide rollers 19 are provided, with one side of each set extending out of the groove 18. The first support 3 and the second support 4 have an inverted isosceles trapezoidal cross-section. This inverted isosceles trapezoidal cross-section allows the first support 3 and the second support 4 to support piston rods of different diameters. The guide roller 19 facilitates the movement of the piston rod, allowing one end to extend into the cylinder.
[0019] This invention features a platform plate 5 mounted on a lifting and adjusting mechanism 2 inside a centering base 1. A first support 3 and a second support 4, which can move in opposite directions, are then mounted on the platform plate 5. The reverse movement of the first support 3 and the second support 4 allows for the support of piston rods of different lengths, resulting in a highly flexible centering system. The first support 3 and the second support 4 raise two points to support the piston rod, ensuring the stability of the piston rod's centering movement and improving centering efficiency.
[0020] Example 2 according to Figure 1-4 As shown, this embodiment proposes an automatic centering system for a hydraulic cylinder assembly line, including a centering base 1, a lifting and adjusting mechanism 2, a first support 3, and a second support 4. The centering base 1 is equipped with the lifting and adjusting mechanism 2, and a platform plate 5 is provided on the lifting and adjusting mechanism 2. A guide rail 6 is provided on the top of the platform plate 5. The first support 3 and the second support 4 are slidably connected to the guide rail 6 through a first slide 7 and a second slide 8, respectively. Supports 9 are symmetrically provided on the platform plate 5, and a drive rod 10 is rotatably provided between the two supports 9. The drive rod 10 is driven by a self-locking motor 11, and a gear 12 is provided on the drive rod 10. A first rack 13 is provided on the first slide 7, and a second rack 14 is provided on the second slide 8. Both the first rack 13 and the second rack 14 mesh with the gear 12. Centering moving guide components are provided on the inner walls of the first support 3 and the second support 4.
[0021] The centering base 1 is equipped with four movable wheels 15 at its bottom corners, and each movable wheel 15 has a brake pad. By providing the movable wheels 15, the centering base 1 can be easily moved to a designated position, and the brake pads can lock the movable wheels 15 in place.
[0022] The centering base 1 has fixing plates 16 on both sides of one end, and fixing bolts 17 are provided on the fixing plates 16. By setting the fixing plates 16 and fixing bolts 17, the centering base 1 can be fixed to the fixed foundation after it is moved to the designated position.
[0023] 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 illustrative of the principles of this 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. An automatic centering system for a hydraulic cylinder assembly line, characterized by: The device includes a centering base (1), a lifting and adjusting mechanism (2), a first support (3), and a second support (4). The centering base (1) is equipped with a lifting and adjusting mechanism (2), and a platform plate (5) is provided on the lifting and adjusting mechanism (2). A guide rail (6) is provided on the top of the platform plate (5). The first support (3) and the second support (4) are slidably connected to the guide rail (6) through a first slide (7) and a second slide (8), respectively. Supports (9) are symmetrically provided on the platform plate (5). A drive rod (10) is rotatably provided between the two supports (9). The drive rod (10) is driven by a self-locking motor (11), and a gear (12) is provided on the drive rod (10). A first rack (13) is provided on the first slide (7), and a second rack (14) is provided on the second slide (8). Both the first rack (13) and the second rack (14) mesh with the gear (12). The first support (3) and the second support (4) are both provided with centering and moving guide components on their inner walls.
2. The automatic alignment system for hydraulic cylinder assembly lines according to claim 1, characterized in that: The lifting adjustment mechanism (2) includes an electric telescopic rod (201) and a sliding groove (202). The centering base (1) is provided with an electric telescopic rod (201). The output end of the electric telescopic rod (201) is connected to the bottom of the platform plate (5). The two sides of the centering base (1) are provided with sliding grooves (202). The two ends of the platform plate (5) are slidably connected to the sliding grooves (202).
3. The automatic alignment system for hydraulic cylinder assembly lines according to claim 1, characterized in that: The centering base (1) is provided with four movable wheels (15) at the bottom corners, and the movable wheels (15) are provided with brake pads.
4. The automatic alignment system for hydraulic cylinder assembly lines according to claim 1, characterized in that: The centering base (1) has a fixing plate (16) on one side wall and a fixing bolt (17) on the fixing plate (16).
5. The automatic alignment system for hydraulic cylinder assembly lines according to claim 1, characterized in that: The centering and moving guide assembly includes a groove (18) and a guide roller (19). The first support (3) and the second support (4) are both provided with grooves (18). The guide roller (19) is rotatably provided inside the groove (18). Multiple sets of the guide roller (19) are provided, and one side of each set of the guide roller (19) extends out of the groove (18).
6. The automatic alignment system for a hydraulic cylinder assembly line according to claim 5, characterized in that: The first support (3) and the second support (4) have an inverted isosceles trapezoidal cross-section.