Cylinder multi-section type self-centering mechanism

Abstract

The utility model discloses a cylindrical multi-section type self-centering mechanism. Comprising a plurality of supporting assemblies which are arranged in a row separately. The supporting assembly comprises a lifting mechanism, and a supporting base is fixed to the lifting end of the lifting mechanism. A linear guide rail is fixed on the supporting base; a movable base is mounted on the linear guide rail in a sliding manner; the two ends of the movable base are each fixedly provided with a carrier roller frame, and carrier rollers used for supporting workpieces are installed on the carrier roller frames in a rotating mode. The supporting assemblies in the self-centering mechanism can be relatively and transversely adjusted, carrier rollers on the supporting assemblies can be adjusted in the longitudinal direction and the height direction, the axis supporting position of the axis of a large cylindrical workpiece can be conveniently adjusted according to the axis of the large cylindrical workpiece, and self-adaptive supporting of the axis of the cylindrical workpiece is achieved; the self-centering mechanism is high in use flexibility and universality, can adapt to cylindrical workpieces with different diameters, and can adapt to the rotating action of the workpieces.

Description

Technical Field

[0001] The utility model relates to a supporting rotation mechanism, in particular to a cylindrical multi-section self-centering mechanism. Background Art

[0002] When clamping, processing, assembling, transporting, storing and assembling accessories of large or heavy cylindrical workpieces, it is often difficult to clamp the workpiece and perform related operations due to the high height, heavy weight, large size or unreasonable operation position of the workstation. At the same time, there are operational risks and low construction efficiency during the assembly or processing process. Other lifting equipment or special machines are required for construction and operation, which greatly increases the construction cost; especially when the workpiece has poor external dimensions, the workpiece axis has poor straightness, which makes it difficult to support and cannot be placed directly, and there are certain safety hazards. Utility Model Content

[0003] The utility model aims to provide a cylindrical multi-section self-centering mechanism, which is used for the axis adaptive support of large or heavy cylindrical workpieces.

[0004] The utility model adopts the following technical scheme: a cylindrical multi-section self-centering mechanism, including a plurality of support assemblies arranged in a row; the support assembly includes a lifting mechanism, and a support base is fixed to the lifting end of the lifting mechanism; a linear guide is fixed on the support base; a mobile base is slidably installed on the linear guide; a roller frame is fixed at both ends of the mobile base, and rollers for supporting workpieces are rotatably installed on the roller frame.

[0005] Preferably, two rollers are installed on each of the roller frames, and the four rollers are arranged in a "V" shape.

[0006] Preferably, the roller comprises a rotating shaft, and both ends of the rotating shaft are rotatably mounted on the roller frame through bearings; and a plurality of rubber rollers are mounted on the rotating shaft.

[0007] Preferably, shaft sleeves are arranged between adjacent rubber rollers and between the rubber roller and the roller frame.

[0008] Preferably, it also includes a frame, on which a pair of linear slide rails are fixed, and both ends of the moving beam are slidably mounted on the two linear slide rails respectively; and one of the supporting assemblies is mounted on each of the moving beams.

[0009] Preferably: the lifting mechanism includes an oil cylinder, the oil cylinder is fixed on the moving beam, and the end of the oil cylinder piston rod is fixed on the lower side of the support base; the lower side of the support base is also fixed with two sliding rods parallel to the oil cylinder, and the sliding rods are slidably connected to the moving beam.

[0010] Preferably: a row of positioning holes is provided on the frame on one side of the linear slide rail; and a positioning pin cooperating with the positioning hole is installed at the end of the movable beam.

[0011] The beneficial effects of the utility model are that the support assemblies in the self-centering mechanism can be adjusted laterally relative to each other, and the rollers on the support assembly can be adjusted in the longitudinal and height directions. For the axis of a large cylindrical workpiece, it is convenient to adjust the axis support position to achieve adaptive support of the axis of the cylindrical workpiece; the self-centering mechanism is highly flexible and versatile, can adapt to cylindrical workpieces of different diameters, and can adapt to the rotation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 The utility model is a three-dimensional schematic diagram of a cylindrical multi-section self-centering mechanism.

[0014] Figure 2 It is a front view of a cylindrical multi-section self-centering mechanism of the utility model.

[0015] Figure 3 It is a left view of a cylindrical multi-section self-centering mechanism of the utility model.

[0016] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0017] Figure 5 for Figure 1 Enlarged view of point B in the middle.

[0018] Explanation of the reference numerals: 1. lifting mechanism; 101. oil cylinder; 102. slide rod; 103. guide sleeve; 2. support base; 3. linear guide rail; 4. movable base; 401. longitudinal limit pin; 5. roller frame; 6. roller; 601. rotating shaft; 602. bearing; 603. rubber roller; 604. bushing; 7. frame; 701. positioning hole; 702. transverse limit pin; 8. linear guide rail; 9. movable beam; 901. positioning pin. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] Combination Figures 1 to 3 As shown, a cylindrical multi-stage self-centering mechanism is provided, wherein a row of separately arranged moving beams 9 are slidably mounted on a frame 7, and a supporting assembly is mounted on each moving beam 9, and each supporting assembly can be laterally moved and adjusted.

[0022] Recombination Figure 5 As shown, a pair of linear slide rails 8 are fixed on the frame 7, and sliders are fixed on the lower sides of both ends of the moving beam 9. The sliders are slidably installed on the corresponding linear slide rails 8, and a transverse limit pin 702 is fixed on one side of the end of the linear slide rail 8. The position of the moving beam 9 is limited by the transverse limit pin 702 to prevent the moving beam 9 from slipping out of the linear slide rail 8. A row of positioning holes 701 is provided on the frame 7 on one side of the linear slide rail 8, and a positioning pin 901 matching the positioning hole 701 is installed at the end of the moving beam 9. After the moving beam 9 adjusts its position, the positioning pin 901 is inserted into the positioning hole 701 to achieve the positioning of the moving beam 9.

[0023] Combination Figures 1 to 4 As shown, the support assembly includes a support base 2, and a lifting mechanism 1 is installed between the support base 2 and the moving beam 9, and the height of the support base 2 is controlled by the lifting mechanism 1. The lifting mechanism 1 includes an oil cylinder 101, the cylinder body of the oil cylinder 101 is fixed on the moving beam 9, and the upper end of the piston rod of the oil cylinder 101 is fixed to the lower side of the support base 2. Two sliding rods 102 parallel to the oil cylinder 101 are also fixed to the lower side of the support base 2, and guide sleeves 103 are fixed at both ends of the moving beam 9. The sliding rods 102 and the guide sleeves 103 are slidably connected in a one-to-one correspondence. The height of the support base 2 is adjusted by the extension and contraction of the oil cylinder 101.

[0024] A roller assembly with longitudinally adjustable position is installed on the support base 2. A pair of linear guide rails 3 are fixed on the support base 2, and sliders are fixed at both ends of the mobile base 4, and the sliders are slidably mounted on the linear guide rails 3. A longitudinal limit pin 401 is fixed to one side of the end of the linear guide rail 3. The position of the mobile base 4 is limited by the longitudinal limit pin 401 to prevent the mobile base 4 from escaping from the linear guide rail 3. The mobile base 4 can slide longitudinally to adapt to the axis deviation of the cylindrical workpiece; when the axis of the cylindrical workpiece deviates, the mobile base 4 automatically moves to adapt to the axis of the cylindrical workpiece, thereby playing a better supporting role.

[0025] A pair of roller frames 5 are fixed at both ends of the mobile base 4. Four symmetrical rollers 6 for supporting the workpiece are rotatably mounted on the roller frame 5. The four rollers 6 are arranged in a "V" shape to accommodate cylindrical workpieces of different diameters. The rollers 6 include a rotating shaft 601. Both ends of the rotating shaft 601 are rotatably mounted in corresponding mounting holes on the roller frame 5 through bearings 602. Two sections of rubber rollers 603 are mounted on the rotating shaft 601. A shaft sleeve 604 is provided between the rubber roller 603 and the roller frame 5. The two rubber rollers 603 are separated by a step on the rotating shaft 601.

[0026] Working principle:

[0027] Before use, adjust the lateral position of the moving beam 9 according to the length of the workpiece, and then insert the positioning pin 901 into the positioning hole 701 to achieve the limit of the moving beam 9; the cylindrical workpiece is hoisted on the "V"-shaped roller 6 on the moving base 4. When the axis of the cylindrical workpiece deviates, the cylindrical workpiece will push the moving base 4 to move in the longitudinal direction to adapt to the axis of the cylindrical workpiece; adjust the height of the roller 6 through the lifting mechanism 1 to ensure that each roller 6 contacts the cylindrical workpiece to achieve stable support of the cylindrical workpiece;

[0028] The self-centering mechanism provided by the utility model realizes stable support and flexible adjustment of large or heavy cylindrical workpieces through reasonable design and coordinated work of multiple components, thereby improving production efficiency and processing quality.

[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cylindrical multi-stage self-centering mechanism, Features: It includes a plurality of separately arranged support assemblies in a row; The support assembly comprises a lifting mechanism (1), a lifting end of the lifting mechanism (1) being fixed with a support base (2); a linear guide rail (3) being fixed on the support base (2); a movable base (4) being slidably mounted on the linear guide rail (3); a roller frame (5) being respectively fixed at both ends of the movable base (4), and a roller (6) for supporting a workpiece being rotatably mounted on the roller frame (5).

2. A cylindrical multi-stage self-centering mechanism according to claim 1, characterized in that: Two rollers (6) are mounted on each of the roller frames (5), and the four rollers (6) are arranged in a "V" shape.

3. The cylindrical multi-stage self-centering mechanism according to claim 1, characterized in that: The roller (6) comprises a rotating shaft (601), and both ends of the rotating shaft (601) are rotatably mounted on the roller frame (5) via bearings (602); a plurality of rubber rollers (603) are mounted on the rotating shaft (601).

4. The cylindrical multi-stage self-centering mechanism according to claim 3, characterized in that: Axle sleeves (604) are provided between adjacent rubber rollers (603) and between the rubber rollers (603) and the roller support frame (5).

5. The cylindrical multi-stage self-centering mechanism according to claim 1, characterized in that: It also includes a frame (7), a pair of linear slide rails (8) being fixed on the frame (7), and two ends of a moving beam (9) being slidably mounted on the two linear slide rails (8) respectively; and one of the support assemblies is mounted on each of the moving beams (9).

6. A cylindrical multi-stage self-centering mechanism according to claim 5, characterized in that: The lifting mechanism (1) comprises an oil cylinder (101), the oil cylinder (101) being fixed on the moving beam (9), and the piston rod end of the oil cylinder (101) being fixed on the lower side of the support base (2); two sliding rods (102) parallel to the oil cylinder (101) are also fixed on the lower side of the support base (2), and the sliding rods (102) are slidably connected to the moving beam (9).

7. The cylindrical multi-stage self-centering mechanism according to claim 5, characterized in that: A row of positioning holes (701) is provided on the frame (7) on one side of the linear slide rail (8); and positioning pins (901) matching the positioning holes (701) are installed at the end of the movable beam (9).

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