Depth-keeping pressing sleeve device

Abstract

The utility model provides a depth-keeping sleeve pressing device. The depth-keeping pressing sleeve device comprises a connecting rod, a pressing plate, a mounting block, gaskets and a mounting base, the pressing plate, the mounting block, the gaskets and the mounting base are sequentially arranged on the connecting rod, one end of the connecting rod abuts against the outer surface of the pressing plate, the other end of the connecting rod is in threaded connection with the mounting base, the number of the gaskets is n, and n is larger than or equal to 1; the pressing plate and the mounting block are arranged at an interval, so that a mounting depth L is formed between the nth gasket and the pressing plate. The shaft sleeve press-in device can accurately control the press-in depth of the shaft sleeve, can meet the requirement for installation depth of different reaming inner diameter sizes, and can overcome impact inertia during assembly knocking, so that the phenomenon that the shaft sleeve assembly depth is too large is reduced or avoided, the pressed depth of the shaft sleeve can meet the drawing design requirement, and the assembly quality and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts assembly technology, and in particular to a fixed-depth pressing sleeve device. Background Technology

[0002] like Figure 2 As shown, part 9 has a hinge hole 91 with an internal stepless design, and a bushing (limiting sleeve) 10 is installed in the hinge hole 91. The existing assembly method uses... Figure 1 The integrated T-section compression sleeve device shown includes a first shaft portion 100, a second shaft portion 200, and a third shaft portion 300 connected in sequence with gradually decreasing diameters. In use, the sleeve is fitted onto the third shaft portion 300 and contacts the step of the second shaft portion 200. Then, the sleeve is inserted into the reamed hole by tapping the outer surface of the first shaft portion 100.

[0003] Because the assembly clearance between the bushing and the reaming hole is very small, the design tolerance for the assembly depth of the bushing within the reaming hole after assembly is generally 0-0.2mm. During the hammering installation process, the bushing's actual installation position exceeds the designed depth due to impact inertia. Furthermore, because there is no step (a through-hole reaming hole) within the reaming hole, the bushing assembly fails to meet design requirements. In addition, the inner diameter specifications of the reaming holes and the bushing installation depth requirements vary for different vehicle parts, necessitating the machining of various specifications and models of integrated T-section reaming devices. This results in higher tooling processing and maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a fixed-depth pressure sleeve device that can be applied to different reamed hole inner diameters and installation depth requirements.

[0005] The technical solution of this utility model is: a fixed-depth pressing sleeve device, including a connecting rod and a pressure plate, a mounting block, a gasket, and a mounting base sequentially disposed on the connecting rod. One end of the connecting rod abuts against the outer surface of the pressure plate, and the other end of the connecting rod is threadedly connected to the mounting base. The number of gaskets is n, where n≥1. The pressure plate and the mounting block are spaced apart, so that the nth gasket and the pressure plate form an installation depth L.

[0006] In the above scheme, the fixed-depth pressing device is designed as a split structure including a pressure plate, a mounting block, a gasket, and a mounting base. The L value of the installation depth is related to the number of gaskets. That is, by increasing or decreasing the number of gaskets, the pressing depth of the bushing can be precisely controlled, which can be applied to the installation depth requirements of different reamed hole inner diameters. The spaced pressure plate and mounting block are used to position the bushing. The pressure plate and mounting block are connected by a connecting rod, which can overcome the impact inertia during assembly hammering, thereby reducing or avoiding the phenomenon of excessive bushing installation depth. This ensures that the bushing is pressed to the required depth as per the drawing design, greatly improving assembly quality and efficiency.

[0007] Preferably, the mounting block includes a pressure block and a guide block connected together, the gasket is disposed on the side of the pressure block away from the guide block, and the pressure block extends to the outside of the guide block to form a mounting surface.

[0008] Preferably, the mounting base and the mounting block are circular plates, and the diameter of the mounting base is larger than the diameter of the mounting block.

[0009] Preferably, the pressure plate is a long rectangular plate with rounded chamfers around its edges.

[0010] Preferably, the mounting base is provided with a screw hole, one side of which is connected to the connecting rod, and the other side of which forms a pull-out space.

[0011] Preferably, the connecting rod is a hexagonal bolt.

[0012] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0013] 1. The fixed-depth pressing device is designed as a split structure including a pressure plate, a mounting block, a gasket, and a mounting base. The L value of the installation depth is related to the number of gaskets. That is, by increasing or decreasing the number of gaskets, the depth of the bushing can be precisely controlled, which can be applied to the installation depth requirements of different reamed hole inner diameters.

[0014] 2. The fixed-depth pressing device positions the bushing by using spaced pressure plates and mounting blocks. The pressure plates and mounting blocks are connected by connecting rods, which can overcome the impact inertia during assembly and hammering, thereby reducing or avoiding the phenomenon of excessive bushing assembly depth. This ensures that the bushing is pressed to the required depth as per the design drawings, greatly improving assembly quality and efficiency.

[0015] 3. The diameter of the mounting base is larger than that of the mounting block. During hammer assembly, the mounting base can abut against the end face of the part to limit the installation depth of the bushing, effectively avoiding excessive installation depth of the bushing and meeting the design requirements.

[0016] IV. The mounting base is provided with screw holes for installing connecting rods. The screw holes are provided with a pull-out space. The bushing and the fixed-depth pressure sleeve device can be removed together by pulling out the bushing in the pull-out space or by striking the pressure plate, thus realizing a simple and convenient way to remove the bushing.

[0017] Fifth, the fixed-depth pressing device is a split structure. It can be adapted to various specifications and sizes of bushings by simply replacing the pressing block, guide block, and pressing plate. At the same time, when assembling bushings of similar sizes, the washer set, pressing block, guide block and pressing plate can be shared, which greatly improves the versatility of the fixed-depth pressing device, increases the tooling reuse rate, and reduces the number of special tooling developments and maintenance costs. Attached Figure Description

[0018] Figure 1 A schematic diagram of the existing integrated T-section compression sleeve device;

[0019] Figure 2 A schematic diagram of the structure of the fixed-depth pressing sleeve device provided by this utility model during use;

[0020] Figure 3 This is a schematic diagram of the structure of the fixed-depth pressing sleeve device provided by this utility model;

[0021] Figure 4 A schematic diagram of the structure of the fixed-depth pressure sleeve device provided by this utility model after the bushing is installed.

[0022] In the attached diagram: 1. Mounting base; 101. Screw hole; 102. Pull-out space; 2. Shim; 3. Pressure block; 31. Mounting surface; 4. Guide block; 5. Pressure plate; 6. Connecting rod; 7. Mounting block; 8. Mounting space; 9. Part; 91. Reamed hole; 10. Bushing; 11. Copper rod; 100. First shaft part; 200. Second shaft part; 300. Third shaft part. Detailed Implementation

[0023] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0024] like Figure 2 , Figure 3 As shown, the fixed-depth pressing sleeve device provided in this embodiment includes a connecting rod 6 and a pressure plate 5, a mounting block 7, a gasket 2 and a mounting base 1 sequentially disposed on the connecting rod 6.

[0025] The mounting base 1, the gasket 2, and the mounting block 7 are all cylindrical. The thickness of the mounting base 1 is greater than the thickness of the mounting block 7, and the thickness of the mounting block 7 is greater than the thickness of a single gasket 2. A through screw hole 101 is provided in the middle of the mounting base 1.

[0026] The number of gaskets 2 is n, where n ≥ 1. The mounting block 7 can be designed as an integral structure with a single step, or as a separate structure with a pressure block 3 and a guide block 4. The diameter of the pressure block 3 is larger than the diameter of the guide block 4, so that the pressure block 3 extends to the outside of the guide block 4 to form a mounting surface 31. The gasket 2 is located on the side of the pressure block 3 away from the guide block 4. The mounting base 1 is located on the side of the gasket 2 away from the pressure block 3.

[0027] The pressure plate 5 is a long rectangular plate with rounded chamfers around its edges. The connecting rod 6 is a standard hexagonal screw. The pressure plate 5 is connected to the guide block 4 and the two are spaced apart to form an installation space 8 for mounting the bushing 10. The axial distance of the installation space 8 is adapted to the axial length of the bushing 10 (e.g., ...). Figure 4 (As shown). The connecting rod 6 passes sequentially through the pressure plate 5, guide block 4, pressure block 3, and gasket 2 to connect with the screw hole 101. The number of gaskets 2 is such that the installation depth L between the nth gasket 2 and the pressure plate 5 meets the installation depth distance of the bushing 10, and at the same time, it is also necessary to form a pull-out space 102 on the other side of the screw hole 101. The nth refers to the one furthest from the mounting base 1.

[0028] like Figure 1 As shown, the method for assembling a bushing using the fixed-depth pressure sleeve device provided by this utility model includes the following steps:

[0029] S1. Based on the design requirements of the installation depth of the bushing 10, convert it to the corresponding installation depth L value. Based on this L value, install an appropriate number of shims 2, pressure blocks 3 and guide blocks 4 on the mounting base 1 in sequence, and align the mounting hole in the middle through which the connecting rod 6 passes.

[0030] S2, then pass the bushing 10 through the guide block 4 and fit it against the mounting surface 31;

[0031] S3, install the pressure plate 5 at the end of the bushing 10 away from the mounting surface 31, then insert the connecting rod 6 into the screw hole 101 and tighten the connecting rod 6;

[0032] S4. Align the fixed-depth pressure sleeve device with the assembled bushing 10 with the reamed hole 91, tap the back of the mounting base 1 with the copper rod 11, and insert the bushing 10 into the reamed hole 91 until the end face of the mounting base 1 contacts the end face of the part 9 to complete the assembly.

[0033] S5, remove the connecting rod 6 at the end of the hinge hole 91 away from the mounting base 1, take out the pressure plate 5, then tap the guide block 4 with a thin copper rod, and take out the mounting block 7, the gasket 2 and the mounting base 1; complete the assembly of the bushing 10.

[0034] If the outer diameter of the bushing 10 to be installed next time is different, simply replace the pressure block 3, guide block 4 and pressure plate 5, and repeat the above steps to complete the assembly of bushings 10 with different outer diameters.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fixed-depth pressing sleeve device, characterized in that, It includes a connecting rod (6) and a pressure plate (5), a mounting block (7), a gasket (2) and a mounting base (1) arranged sequentially on the connecting rod (6). One end of the connecting rod (6) abuts against the outer surface of the pressure plate (5), and the other end of the connecting rod (6) is threadedly connected to the mounting base (1). The number of gaskets (2) is n, where n≥1. The pressure plate (5) and the mounting block (7) are spaced apart, so that the nth gasket (2) forms an installation depth L between it and the pressure plate (5).

2. The fixed-depth pressing sleeve device according to claim 1, characterized in that, The mounting block (7) includes a pressure block (3) and a guide block (4) connected together. The pressure block (3) has the gasket (2) disposed on the side away from the guide block (4). The pressure block (3) extends to the outside of the guide block (4) to form a mounting surface (31).

3. The fixed-depth pressing sleeve device according to claim 1, characterized in that, The mounting base (1) and the mounting block (7) are circular plates, and the diameter of the mounting base (1) is larger than the diameter of the mounting block (7).

4. The fixed-depth pressing sleeve device according to claim 1, characterized in that, The pressure plate (5) is a long rectangular plate with rounded chamfers around its perimeter.

5. The fixed-depth pressing sleeve device according to claim 1, characterized in that, The mounting base (1) is provided with a screw hole (101), one side of the screw hole (101) is connected to the connecting rod (6), and the other side of the screw hole (101) forms a pull-out space (102).

6. The fixed-depth pressing sleeve device according to claim 1, characterized in that, The connecting rod (6) is a hexagonal bolt.

Images