Automatic press-fitting device for collar on mechanical pipe column

Abstract

The utility model provides a kind of automatic press mounting device of collar on mechanical tubular column, it is related to collar installation technical field, including ring seat and several clamping sleeve pieces, one end of clamping sleeve piece is connected with ring seat, flexible deformation can be generated when clamping sleeve piece is stressed;Sleeve, limit in rack, elastic mouthpiece and sleeve coaxial arrangement;Expansion piece, for pushing elastic mouthpiece moves along the axis of sleeve, several clamping sleeve pieces slide with the outer wall of sleeve;Wherein, sleeve includes circular platform section, collar is placed on circular platform section, expansion piece promotes clamping sleeve piece movement, collar is moved towards the clamping groove opened on sleeve by the action of thrust force while several clamping sleeve pieces are opened synchronously, circular platform shape elastic mouthpiece of multiple inclined elastic materials, utilize elastic deformation characteristics, evenly disperse contact stress in the process of collar push pressure, self-adapting deformation ability can be compatible with different bevel angles or size deviation sleeve, improve assembly accuracy and application range.

Description

Technical Field

[0001] This utility model relates to the field of retainer installation technology, and in particular to an automatic retainer pressing device for mechanical tubing. Background Technology

[0002] In the field of mechanical assembly, the snap-fit ​​connection between retaining rings and sleeve grooves is a common connection method, especially widely used in the manufacturing of bearings, pipes, and precision equipment. Traditionally, retaining ring installation relies on hydraulic drive or rigid mechanical structures, such as applying pressure via a hydraulic cylinder or using a multi-link mechanism for positioning. However, these methods have significant drawbacks: rigid actuating components easily cause deformation of the retaining ring or sleeve due to localized stress concentration, affecting assembly accuracy and product lifespan; some complex structures require frequent adjustments to fixtures or molds, resulting in low operational efficiency. Furthermore, existing technologies have high requirements for the compatibility between the sleeve's bevel and the retaining ring, making it difficult to adapt to working conditions of different sizes or angles, thus limiting their applicability. Utility Model Content

[0003] To overcome the aforementioned shortcomings of the prior art, embodiments of this utility model provide an automatic clamping device for mechanical tubing sleeves. The technical problem to be solved by this utility model is: how to design a device that can adaptively push the clamping ring along the inclined surface of the sleeve to accurately clamp it into the groove through elastic deformation, thereby solving the problems of clamping ring deformation, low installation efficiency, and limited applicability caused by traditional rigid pushing components.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic clamping device for a mechanical tube column, comprising an elastic opening member, including a ring seat and several clamping plates, one end of which is connected to the ring seat, and the clamping plates can undergo flexible deformation when subjected to force; a sleeve, which is positioned on the frame, with the elastic opening member and the sleeve coaxially arranged; and a telescopic member, used to push the elastic opening member to move along the axis of the sleeve, with the several clamping plates sliding against the outer wall of the sleeve; wherein, the sleeve includes a frustum section, the clamping ring is placed on the frustum section, the telescopic member pushes the clamping plates to move, and the clamping ring moves towards the clamping groove opened on the sleeve under the action of thrust, while the several clamping plates open synchronously.

[0005] In a preferred embodiment, the end of the sleeve piece that contacts the retaining ring is a pushing end, and the pushing end has a rounded chamfer near the sleeve.

[0006] In a preferred embodiment, the end of the sleeve piece that contacts the retaining ring is a pushing end, and the pushing end has a groove in which the retaining ring is placed.

[0007] In a preferred embodiment, the end of the sleeve piece that contacts the retaining ring is a pushing end, and the end of the pushing end is bent inward, with the retaining ring placed at the bend.

[0008] In a preferred embodiment, the pushing end includes a limiting arc and a shovel surface. The limiting arc is recessed inward along the radial direction of the elastic opening member. The retaining ring is placed on the outer surface of the limiting arc. The end of the bending of the limiting arc is the shovel surface, which is placed at the bottom of the retaining ring.

[0009] In a preferred embodiment, the top of the limiting arc is higher than the top of the retaining ring.

[0010] In a preferred embodiment, the lowest point of the retaining ring is located on the outer side of the shovel face.

[0011] In a preferred embodiment, the telescopic component is a telescopic cylinder, the cylinder seat of which is fixed to the frame, and the telescopic rod of which is connected to the ring seat.

[0012] In a preferred embodiment, two telescopic members are located on the left and right sides of the elastic opening member, the two telescopic rods are fixed to the same base plate, and the elastic opening member is fixed to the base plate.

[0013] In a preferred embodiment, the sleeve and the workpiece are connected, the workpiece is confined on the fixture, and the fixture is fixed on the frame.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This application employs a frustum-shaped elastic opening component composed of multiple inclined elastic materials. Utilizing the elastic deformation characteristics, it evenly distributes contact stress during the pressing process of the retaining ring, significantly reducing the risk of deformation between the retaining ring and sleeve due to localized compression. Simultaneously, the adaptive deformation capability of the elastic structure is compatible with sleeves of different inclined angles or dimensional deviations, improving assembly accuracy and applicability. Furthermore, the integrated welding design simplifies the traditional complex drive mechanism, reduces adjustment steps, and greatly improves the installation efficiency of inserting the retaining ring into the slot. The high fatigue resistance of the elastic material ensures the reliability of the component under long-term, high-frequency use, comprehensively solving the problems of poor adaptability, low efficiency, and short lifespan associated with rigid structures. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0017] Figure 1 This is a structural diagram of the pressing device of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of section A.

[0019] Figure 3 This is a structural diagram of the elastic opening component in this utility model.

[0020] Figure 4 This is a structural diagram of several jacket pieces in this utility model.

[0021] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0022] Figure 6 This is a structural diagram of another form of the jacket plate in this utility model.

[0023] Figure 7 for Figure 6 Enlarged view of section C.

[0024] Figure 8 This is a side view of the jacket piece with bending in this utility model.

[0025] Figure 9 This is a side view of the sleeve piece with a groove in this utility model.

[0026] The attached figures are labeled as follows: 10, elastic opening element; 11, ring seat; 12, clamping plate; 13, pushing end; 131, limiting arc; 132, shovel face; 20, sleeve; 30, telescopic element; 40, base; 50, workpiece. Detailed Implementation

[0027] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0028] Example

[0029] like Figures 1-9 This device mainly consists of several parts, including an elastic opening component 10, a sleeve 20, a telescopic component 30, and a base 40.

[0030] The base 40 and the machine base are fixed together by bolts and fasteners, and the telescopic component 30 is installed on the base 40.

[0031] The telescopic component 30 is a type of telescopic cylinder, which can be an electric cylinder, a pneumatic cylinder, a hydraulic cylinder, etc. In this embodiment, a pneumatic cylinder is selected. It mainly includes a cylinder seat, a telescopic rod, and a control unit. The cylinder seat and the base 40 are fixed by a flange. The telescopic rod is slidably connected inside the cylinder seat. The control unit is installed inside the cylinder seat. The control unit and the controller are electrically connected and are used to drive the telescopic rod to extend or retract from the cylinder seat under the command of the controller. Since the telescopic method of the telescopic component 30 is existing technology and is not the main improvement point of this embodiment, it will not be described in detail.

[0032] Preferably, two telescopic members 30 are arranged on the base 40, and the ends of the telescopic rods of the two telescopic members 30 are fixed to the same base plate.

[0033] The elastic opening member 10 is connected to the substrate.

[0034] A clamp is also connected to the base 40 by bolts and fasteners. The workpiece 50 is placed in the clamp, which is used to stably limit the workpiece 50 above the base 40. A sleeve 20 is detachably connected to one end of the workpiece 50 near the elastic opening member 10. Since the workpiece 50 and the clamp that matches it are not improvements in this embodiment, and are different in different processes, the structure of the workpiece 50 and the clamp will not be described in detail.

[0035] like Figure 2 As shown, the sleeve 20 includes at least one frustum section and at least one cylindrical section. The retaining ring needs to enter from the minor diameter of the frustum section, slide / roll along the gradually changing slope to the major diameter of the frustum section, and then move a distance to enter the retaining groove opened in the cylindrical section of the sleeve 20.

[0036] like Figure 2 The elastic opening member 10 includes a ring seat 11 and clamping plates 12. The ring seat 11 is fixed to a base plate by a threaded component. Several clamping plates 12 are welded onto the ring seat 11. Among the clamping plates 12, one clamping plate 12 is selected as the object, and the axis of the ring seat 11 is used as a reference to form a circumferential array. The several clamping plates 12 together form a frustum shape. The end of the frustum facing the ring seat 11 is the larger diameter, and the smaller diameter is fitted onto the frustum section of the sleeve 20. The ends of the several clamping plates 12 abut against the surface of the frustum section of the sleeve 20.

[0037] In use, the telescopic member 30 drives its own telescopic rod to move, allowing the clamping plate 12 to move along the axis of the sleeve 20. When the elastic opening member 10 and the sleeve 20 are separated, a retaining ring is fitted onto the frustum section of the sleeve 20. Then, the elastic opening member 10 and the sleeve 20 are brought closer together, and the elastic opening member 10 pushes the retaining ring along the surface of the sleeve 20, expanding and moving until the retaining ring enters the retaining groove.

[0038] The following are the optional materials for the jacket plate 12.

[0039] Metallic materials: spring steel or stainless steel.

[0040] Non-metallic materials: PEEK or carbon fiber composite materials.

[0041] Hybrid solutions: such as metal skeleton + polyurethane coating.

[0042] like Figure 4 , Figure 5In the first case of this embodiment, the end of the sleeve piece 12 is rounded to form the pushing end 13. The rounded chamfer can fit the outer wall of the sleeve piece 12 better. In this state, the stiffness coefficient of the sleeve piece 12 needs to be increased to prevent the pushing end 13 from accidentally moving to the outside of the retaining ring when pushing the retaining ring due to the excessive deformation capacity of the sleeve piece 12.

[0043] like Figure 9 In the second case of this embodiment, the end of the sleeve piece 12 is cut into a groove to form a pushing end 13, and the retaining ring can be stuck in the groove, which further improves the stability of the pushing end 13 pushing the retaining ring.

[0044] like Figure 6 , Figure 7 , Figure 8 In the third case of this embodiment, the end of the sleeve piece 12 is bent inward toward the axis of the ring seat 11 to form the pushing end 13. The bent part can also serve as a limit for the retaining ring, but the processing difficulty is lower than that of the second case. Furthermore, the pushing end 13 can be flattened before bending to improve the smoothness of the retaining ring entering the bending point.

[0045] like Figure 8 In the third case, for easier explanation, the pushing end 13 includes a limiting arc 131 and a shovel surface 132. The bent limiting arc 131 is recessed to limit the movement of the retaining ring. The top of the limiting arc 131 is higher than the highest point of the retaining ring to improve the limiting ability of the retaining ring. The shovel surface 132 is inserted into the bottom of the retaining ring. The end of the shovel surface 132 does not touch the position of the lowest point of the retaining ring, so that the retaining ring can move quickly into the retaining groove located in the sleeve 20.

[0046] This embodiment employs a frustum-shaped elastic opening component 10 composed of multiple inclined elastic materials. Utilizing its elastic deformation characteristics, it evenly distributes contact stress during the pressing process of the retaining ring, significantly reducing the risk of deformation between the retaining ring and the sleeve 20 due to localized compression. Simultaneously, the adaptive deformation capability of the elastic structure is compatible with sleeves 20 of different inclined plane angles or dimensional deviations, improving assembly accuracy and applicability. Furthermore, the integrated welding design simplifies the traditional complex drive mechanism, reduces adjustment steps, and significantly improves the installation efficiency of the retaining ring entering the slot. The high fatigue resistance of the elastic material ensures the reliability of the component under long-term, high-frequency use, comprehensively solving the problems of poor adaptability, low efficiency, and short lifespan associated with rigid structures.

[0047] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An automatic pressing device for clamping rings on a mechanical tubing column, characterized in that, include: The elastic opening member (10) includes a ring seat (11) and several clamping pieces (12). One end of the clamping piece (12) is connected to the ring seat (11). The clamping piece (12) can produce flexible deformation when subjected to force. The sleeve (20) is located on the frame, and the elastic opening element (10) and the sleeve (20) are coaxially arranged; Telescopic component (30) is used to push the elastic opening component (10) to move along the axis of the sleeve (20), and several clamping pieces (12) slide against the outer wall of the sleeve (20); The sleeve (20) includes a frustum section, the retaining ring is placed on the frustum section, the telescopic member (30) pushes the clamping piece (12) to move, and the retaining ring moves toward the groove opened on the sleeve (20) under the action of the thrust, while several clamping pieces (12) open synchronously.

2. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 1, characterized in that, The end of the sleeve piece (12) that is in contact with the retaining ring is the pushing end (13), and the pushing end (13) has a rounded chamfer near the sleeve (20).

3. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 1, characterized in that, The end of the sleeve piece (12) that is in contact with the retaining ring is the pushing end (13), and the end of the pushing end (13) has a groove, in which the retaining ring is placed.

4. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 1, characterized in that, The end of the sleeve piece (12) that contacts the retaining ring is the pushing end (13), and the end of the pushing end (13) is bent inward, with the retaining ring placed at the bend.

5. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 4, characterized in that, The pushing end (13) includes a limiting arc (131) and a shovel surface (132). The limiting arc (131) is recessed inward along the radial direction of the elastic opening member (10). The retaining ring is placed on the outer surface of the limiting arc (131). The end of the bending of the limiting arc (131) is the shovel surface (132), which is placed at the bottom of the retaining ring.

6. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 5, characterized in that, The top of the limiting arc (131) is higher than the top of the retaining ring.

7. An automatic pressing device for clamping rings on a mechanical tubing column according to claim 5 or 6, characterized in that, The lowest point of the retaining ring is located on the outside of the shovel surface (132).

8. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 1, characterized in that, The telescopic component (30) is a telescopic cylinder. The cylinder seat of the telescopic cylinder is fixed on the frame, and the telescopic rod of the telescopic cylinder is connected to the ring seat (11).

9. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 8, characterized in that, The two telescopic members (30) are located on the left and right sides of the elastic opening member (10), and the two telescopic rods are fixed to the same base plate. The elastic opening member (10) is fixed to the base plate.

10. The automatic pressing device for clamping rings on a mechanical tubing column according to claim 1, characterized in that, The sleeve (20) is connected to the workpiece (50), the workpiece (50) is confined on the fixture, and the fixture is fixed on the frame.

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