Single-angle shaft head interference press-fitting equipment

Abstract

The utility model relates to the technical field of mechanical installation, in particular to a single-angle shaft head interference press-fitting device which comprises a torsion shaft and a hydraulic machine, the torsion shaft comprises a torsion arm, a half shaft with the top end inserted into a shaft hole in one end of the torsion arm, a shaft head and a square flange plate fixedly sleeved at the position, close to the middle, of the shaft head. The positioning assembly comprises a bottom plate, a vertical plate detachably fixed to the rear end of the top face of the bottom plate, a guide block detachably fixed to the front wall of the vertical plate, a second guide plate detachably fixed to the front end of the bottom plate and a positioning mandrel detachably and fixedly arranged on the front side of the center of the top face of the bottom plate in a sleeving mode, and a right-angle clamping groove matched with the square flange plate in a clamped mode is formed in the front wall of the guide block. A square groove clamped and matched with the half shaft is formed in the front end of the guide plate II; the positioning mandrel is sleeved and matched with a shaft hole in one end, far away from the half shaft, of the torque arm; when the torsion shaft is pressed, rapid and accurate positioning can be achieved, and the pressing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical installation, in particular to a single-angle shaft head interference press-fitting device. Background Art

[0002] In the towed RV and trailer industry, torsion axles are widely used due to load and road conditions. Due to different design axle loads, the axle tube is in a horizontal state, so the assembly direction of the torsion shaft and the axle tube needs to be installed at multiple angles, and the torsion shaft itself also has fixed angle requirements.

[0003] The torque shaft includes a half shaft, a torque arm, a shaft head and a square flange. One end of the half shaft and the shaft head are respectively interference fit in the shaft holes at both ends of the torque arm, and the square flange is fixedly fit on the shaft head. When the shaft head and the torque arm are fitted, the angle of the square flange and the torque arm must be matched. When manual press-fitting is used, it is difficult to position quickly and accurately, which can easily result in batches of unqualified products, is time-consuming and labor-intensive, and greatly affects production efficiency. In order to solve this problem, it is urgent to design a standard single-angle press-fitting device to quickly locate the press-fitting angle. Utility Model Content

[0004] The utility model aims to provide a single-angle shaft head interference press-fitting device, which is used to solve the problem that it is difficult to quickly and accurately position the torsion shaft when the torsion shaft is press-fitted in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-angle shaft head interference pressing device, including a torque shaft and a hydraulic press, the torque shaft including a torque arm, a half shaft with the top end inserted into the shaft hole at one end of the torque arm, a shaft head and a square flange fixedly sleeved on the shaft head near the middle position, the positioning assembly including a base plate, a vertical plate detachably fixed to the rear end of the top surface of the base plate, a guide block detachably fixed to the front wall of the vertical plate, a guide plate 2 detachably fixed to the front end of the base plate and a positioning core shaft detachably fixedly sleeved on the front side of the center of the top surface of the base plate, the front wall of the guide block is provided with a right-angle groove that is clip-fitted with the square flange, the front end of the guide plate 2 is provided with a square groove that is clip-fitted with the half shaft, and the positioning core shaft is sleeved and matched with the shaft hole of the torque arm away from one end of the half shaft.

[0006] Preferably, a guide plate 1 is detachably fixed on the top surface of the guide block, a semicircular groove is provided in the middle of the front end of the guide plate 1, and a pressing sleeve is detachably mounted on the top of the shaft head, and the pressing sleeve is snap-fitted and matched with the semicircular groove.

[0007] Preferably, a card slot for matching the second rear end of the guide plate is provided at the front end of the top surface of the bottom plate.

[0008] Preferably, a circular groove is provided on the front center of the top surface of the base plate, a threaded hole is provided at the center of the bottom surface of the circular groove, the positioning core shaft includes a shaft body sleeved in the circular groove and a hexagon socket bolt whose bottom end is threadedly sleeved with the threaded hole, a groove is provided at the center of the top surface of the shaft body to accommodate the end of the hexagon socket bolt, and a through hole is provided at the center of the bottom surface of the groove to match the hexagon socket bolt screw sleeve.

[0009] Preferably, the hydraulic press includes a base plate whose top surface is used to support the bottom plate, columns whose bottom ends are vertically fixed to both sides of the top surface of the base plate, support plates whose two ends are respectively fixed to the top ends of the columns, and a telescopic cylinder vertically fixed to the top surface of the support plate and the telescopic rod passes through the support plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model relates to a single-angle shaft head interference press-fitting device which has a simple structure, is convenient for assembly and disassembly, is easy to operate, and can realize rapid and accurate positioning during the press-fitting process of the torsion shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the torsion shaft of the utility model;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the positioning component of the utility model;

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the bottom plate of the utility model;

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the vertical plate of the utility model;

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the guide plate 1 of the utility model;

[0018] Figure 7 It is a three-dimensional structural schematic diagram of the guide block of the utility model;

[0019] Figure 8 It is a three-dimensional structural schematic diagram of the guide plate 2 of the utility model;

[0020] Fig. 9 It is a schematic diagram of the exploded structure of the positioning mandrel of the utility model.

[0021] In the figure: 1-torque shaft; 1.1-torque arm; 1.2-semi-shaft; 1.3-shaft head; 1.4-square flange;

[0022] 2-positioning assembly; 2.1-base plate; 2.1.1-slot; 2.1.2-round groove; 2.1.3-threaded hole; 2.2-vertical plate; 2.3-guide plate 1; 2.3.1-semicircular groove; 2.4-guide block; 2.4.1-right-angle slot; 2.5-guide plate 2; 2.5.1-square groove; 2.6-positioning mandrel; 2.6.1-shaft body; 2.6.1.1-groove; 2.6.1.2-perforation; 2.6.2-hexagon socket head bolt;

[0023] 3-Hydraulic press; 3.1-Base plate; 3.2-Column; 3.3-Support plate; 3.4-Hydraulic cylinder;

[0024] 4- Press sleeve. DETAILED DESCRIPTION

[0025] 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 in 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.

[0026] See also Figure 1-9 The utility model provides a technical solution, a single-angle shaft head interference press-fitting device, including a torque shaft 1 and a hydraulic press 3. The torque shaft 1 includes a torque arm 1.1, a half shaft 1.2 with the top inserted into the shaft hole at one end of the torque arm 1.1, a shaft head 1.3 and a square flange 1.4 fixedly mounted on the shaft head 1.3 near the middle.

[0027] The positioning assembly 2 comprises a bottom plate 2.1, a vertical plate 2.2 detachably fixed to the rear end of the top surface of the bottom plate 2.1, a guide block 2.4 detachably fixed to the front wall of the vertical plate 2.2, a second guide plate 2.5 detachably fixed to the front end of the bottom plate 2.1, and a positioning mandrel 2.6 detachably fixedly sleeved on the front side of the center of the top surface of the bottom plate 2.1, the front wall of the guide block 2.4 is provided with a right angle slot 2.4.1 for clamping and matching with the square flange 1.4, the front end of the second guide plate 2.5 is provided with a square slot 2.5.1 for clamping and matching with the half shaft 1.2, and the positioning mandrel 2.6 is sleeved and matched with the shaft hole of the torque arm 1.1 away from the half shaft 1.2. Among them, a slot 2.1.1 for clamping and matching with the rear end of the second guide plate 2.5 is provided at the front end of the top surface of the bottom plate 2.1, and the bottom plate 2.1 and the second guide plate 2.5 are assembled by screws and cylindrical pins. The rear wall of the guide block 2.4 and the vertical plate 2.2 are assembled by screws and cylindrical pins. A circular groove 2.1.2 is provided at the front center of the top surface of the bottom plate 2.1, and a threaded hole 2.1.3 is provided at the center of the bottom surface of the circular groove 2.1.2. The positioning mandrel 2.6 includes a shaft body 2.6.1 sleeved in the circular groove 2.1.2 and a hexagon socket bolt 2.6.2 whose bottom end is threadedly sleeved with the threaded hole 2.1.3. A groove 2.6.1.1 is provided at the center of the top surface of the shaft body 2.6.1 to accommodate the end of the hexagon socket bolt 2.6.2, and a through hole 6.1.1.2 is provided at the center of the bottom surface of the groove 2.6.1.1 to match the threaded sleeve of the hexagon socket bolt 2.6.2.

[0028] The hydraulic press 3 comprises a base plate 3.1 whose top surface is used to support the bottom plate 2.1, columns 3.2 whose bottom ends are vertically fixed to both sides of the top surface of the base plate 3.1, a support plate 3.3 whose two ends are respectively fixed to the top of the columns 3.2, and a hydraulic cylinder 3.4 whose telescopic cylinder is vertically fixed to the top surface of the support plate 3.3 and the telescopic rod passes through the support plate 3.3.

[0029] In summary, when assembling the torsion shaft 1, first fix the rear part of the bottom plate 2.1 to the front end of the middle part of the top surface of the base plate 3.1, then press the top end of the half shaft 1.2 into the shaft hole at one end of the torque arm 1.1, then clamp the top of the half shaft 1.2 into the square groove 2.5.1, and make the bottom end of the shaft hole at the other end of the torque arm 1.1 fit on the shaft body 2.6.1.

[0030] The bottom end of the shaft head 1.3 is sleeved into the corresponding shaft hole of the torque arm 1.1, and the square flange 1.4 is clamped in the right-angle clamping groove 2.4.1.

[0031] At this time, the bottom end of the telescopic rod of the hydraulic cylinder 3.4 is just opposite to the top end of the shaft head 1.3, and the telescopic rod of the hydraulic cylinder 3.4 is extended to accurately press the bottom of the shaft head 1.3 into the shaft hole of the torque arm 1.1.

[0032] The torsion shaft 1 is divided into a left torsion shaft and a right torsion shaft. When the torsion shafts 1 on different sides are pressed, two square grooves 2.5.1 are symmetrically provided on both sides of the center of the front end of the guide plate 2.5. The left one is used for pressing the left torsion shaft 1, and the right one is used for pressing the right torsion shaft 1. Correspondingly, the guide block 2.4 needs to be replaced so that it is suitable for the square flange 1.4 of the left or right torsion shaft 1. Since the guide block 2.4 is fixed on the vertical plate 2.2 with screws, it is easy to remove and install.

[0033] In order to avoid damage to the top of the shaft head 1.3 during press-fitting, a guide plate 2.3 is detachably fixed on the top of the guide block 2.4, a semicircular groove 2.3.1 is provided in the middle of the front end of the guide plate 2.3, and a press sleeve 4 is detachably mounted on the top of the shaft head 1.3, and the press sleeve 4 is snap-fitted with the semicircular groove 2.3.1. That is, during the press-fitting process, the telescopic rod of the hydraulic cylinder 3.4 directly applies force to the top of the press sleeve 4, avoiding direct pressure on the top of the shaft head 1.3.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-angle shaft head interference press-fitting device, comprising a torque shaft (1) and a hydraulic press (3), wherein the torque shaft (1) comprises a torque arm (1.1), a half shaft (1.2) with a top end inserted into a shaft hole at one end of the torque arm (1.1), a shaft head (1.3), and a square flange (1.4) fixedly sleeved on the shaft head (1.3) near the middle, characterized in that: Also includes: A positioning assembly (2), the positioning assembly (2) comprising a bottom plate (2.1), a vertical plate (2.2) detachably fixed to the rear end of the top surface of the bottom plate (2.1), a guide block (2.4) detachably fixed to the front wall of the vertical plate (2.2), a second guide plate (2.5) detachably fixed to the front end of the bottom plate (2.1), and a positioning mandrel (2.6) detachably fixedly sleeved on the front side of the center of the top surface of the bottom plate (2.1), the front wall of the guide block (2.4) is provided with a right-angle slot (2.4.1) that is snap-fitted with the square flange (1.4), the front end of the second guide plate (2.5) is provided with a square slot (2.5.1) that is snap-fitted with the half shaft (1.2), and the positioning mandrel (2.6) is sleeved and matched with an axial hole of the torque arm (1.1) away from the half shaft (1.2).

2. The single-angle shaft head interference press-fitting device according to claim 1, characterized in that: A guide plate 1 (2.3) is detachably fixed to the top surface of the guide block (2.4), and a semicircular groove ( 2.3.1), a top detachable sleeve of the shaft head (1.3) is provided with a pressing sleeve (4), and the pressing sleeve (4) is snap-fitted and matched with the semicircular groove (2.3.1).

3. The single-angle shaft head interference press-fitting device according to claim 1, characterized in that: The front end of the top surface of the bottom plate (2.1) is provided with a slot (2.1.1) for clipping and matching the rear end of the second guide plate (2.5).

4. The single-angle shaft head interference press-fitting device according to claim 1, characterized in that: A circular groove (2.1.2) is provided at the front center of the top surface of the bottom plate (2.1), and a threaded hole (2.1.2) is provided at the center of the bottom surface of the circular groove (2.1.2). 2.1.3), the positioning mandrel (2.6) comprises a shaft body (2.6.1) sleeved in the circular groove (2.1.2) and a hexagon socket bolt (2.6.2) whose bottom end is threadedly sleeved with the threaded hole (2.1.3), a groove (2.6.1.1) for accommodating the end of the hexagon socket bolt (2.6.2) is provided at the center of the top surface of the shaft body (2.6.1), and a through hole (2.6.1.1) is provided at the center of the bottom surface of the groove (2.6.1.1) for sleeved with the screw of the hexagon socket bolt (2.6.2) 6.1.1.2）。 5. The single-angle shaft head interference press-fitting device according to claim 1, characterized in that: The hydraulic press (3) comprises a base plate (3.1) whose top surface is used to support the bottom plate (2.1), columns (3.2) whose bottom ends are vertically fixed to both sides of the top surface of the base plate (3.1), a support plate (3.3) whose two ends are respectively fixed to the top ends of the columns (3.2), and a hydraulic cylinder (3.4) whose telescopic cylinder is vertically fixed to the top surface of the support plate (3.3) and whose telescopic rod passes through the support plate (3.3).

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