A differential case clamping structure for assembly

Abstract

The utility model provides a differential mechanism shell clamping structure for assembly relates to differential mechanism processing technical field, including the locating sleeve and the mounting disc of fixed in the outer circle of locating sleeve lower extreme, locating sleeve inside has with the locating step of adapting differential mechanism shell's small diameter end, locating sleeve upper end outside fixedly seted up has one mounting block, mounting block inside has two parallel guide grooves, guide groove and the snap spring groove on differential mechanism shell are in the same plane, mounting block inside slidingly connected has the locating block of U type, locating block has two and respectively with the plug -in rod of adapting guide groove, plug -in rod can be inserted in guide groove and snap spring groove simultaneously, locating block is driven through a linear motor. The utility model has advantages such as high assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of differential processing technology, and in particular to a differential housing clamping structure for assembly. Background Technology

[0002] When assembling the half-shaft gears, planetary gears, and related accessories onto the differential housing, the differential housing needs to be clamped and positioned. Current practices involve setting guide posts on the mounting platform that match the flange holes of the housing, and then inserting the housing into the flange holes via the guide posts to position it. Since the planetary gear shaft insertion holes are located on the circumference of the housing, it is necessary to select appropriate flange holes to match the guide posts when inserting the differential housing; otherwise, the external area of ​​the planetary gear shaft's through-hole will be obstructed, affecting the assembly process. Because the flange holes are needed when assembling the half-shaft gears at the opening of the differential housing (the driven gear disc is connected to the housing by bolts inserted into the flange holes), after assembling the four planetary gears and one half-shaft gear inside the differential housing, the clamping needs to be loosened, and the driven gear disc reassembled. Therefore, the above method is cumbersome and labor-intensive (due to the relatively large overall weight of the differential). Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention proposes a differential assembly tool that can easily clamp the differential housing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a differential housing clamping structure for assembly, characterized in that it includes a positioning sleeve and a mounting plate fixed to the lower outer ring of the positioning sleeve. The positioning sleeve has a positioning step that matches the small diameter end of the differential housing. A mounting block is fixedly provided on the outer side of the upper end of the positioning sleeve. The mounting block has two parallel guide grooves. The guide grooves and the snap ring grooves on the differential housing are in the same plane. A U-shaped positioning block is slidably connected in the mounting block. The positioning block has two insertion rods that are respectively matched with the guide grooves. The insertion rods can be inserted into the guide grooves and the snap ring grooves at the same time. The positioning block is driven by a linear motor.

[0005] Furthermore, the cross-section of the insertion rod is rectangular, and the front end of the insertion rod is wedge-shaped.

[0006] Because the cam disc and housing are limited in the axial direction by a positioning snap ring in the differential lock structure, the housing has a snap ring groove for mounting the snap ring. This solution uses this snap ring groove for positioning, while the positioning step is used to support the small diameter end of the differential housing in the positioning sleeve. Then, the insert rod is inserted into both the guide groove and the snap ring groove to limit the differential housing and the mounting block. This restricts the movement of the differential housing along the axial direction of the positioning sleeve, but does not restrict the rotation of the differential housing within the positioning sleeve. When assembling each gear, it can be rotated as needed to facilitate assembly. In addition, this clamping method does not occupy the flange hole on the differential housing. Therefore, the driven gear disc and each gear can be assembled on the differential housing at one time, requiring only one clamping of the housing. When releasing the differential housing, only the positioning block needs to be pulled back by a linear motor. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure when the clamping structure is fitted with the differential housing.

[0008] Figure 2 This is a three-dimensional schematic diagram of the clamping structure;

[0009] Figure 3 This is a cross-sectional view of the clamping structure.

[0010] Legend: 1. Positioning sleeve; 2. Mounting plate; 3. Positioning step; 4. Mounting block; 5. Guide groove; 6. Snap ring groove; 7. Insert rod; 8. Linear motor. Detailed Implementation

[0011] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] like Figure 1 , Figure 2 and Figure 3 As shown, the system includes a positioning sleeve 1 and a mounting plate 2 fixed to the lower outer ring of the positioning sleeve 1. The mounting plate 2 has mounting holes, allowing it to be fixed to the operating platform with bolts. The positioning sleeve 1 has a positioning step 3 that matches the small-diameter end of the differential housing. A mounting block 4 is fixedly installed on the upper outer side of the positioning sleeve 1. The mounting block 4 has two parallel guide grooves 5, which are in the same plane as the retaining ring groove 6 on the differential housing. A U-shaped positioning block is slidably connected inside the mounting block 4. The positioning block has two insertion rods 7 that are respectively adapted to the guide grooves 5. The insertion rods 7 can be inserted into both the guide grooves 5 and the retaining ring grooves 6 simultaneously. The positioning block is driven by a linear motor 8. The cross-section of the insertion rods 7 is rectangular, and the front end of the insertion rods 7 is wedge-shaped to avoid interference during insertion.

[0013] Since the cam disc and housing are limited in the axial direction by a positioning snap ring in the differential lock structure, the housing has a snap ring groove 6 for mounting the snap ring. This solution uses this snap ring groove 6 for positioning, while the positioning step 3 is used to place the small diameter end of the differential housing in the positioning sleeve 1. Then, the insert rod 7 is inserted into both the guide groove 5 and the snap ring groove 6 to limit the differential housing and the mounting block 4. This can restrict the movement of the differential housing along the axial direction of the positioning sleeve 1, but does not restrict the rotation of the differential housing in the positioning sleeve 1. When assembling each gear, it can be rotated as needed to facilitate assembly. In addition, this clamping method does not occupy the flange hole on the differential housing. Therefore, the driven gear disc and each gear can be assembled on the differential housing at one time. Only one clamping of the housing is required. When the differential housing is released, only the linear motor 8 needs to pull back the positioning block.

[0014] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A differential housing clamping structure for assembly, characterized in that, The device includes a positioning sleeve (1) and a mounting plate (2) fixed to the lower outer ring of the positioning sleeve (1). The positioning sleeve (1) has a positioning step (3) that is adapted to the small diameter end of the differential housing. A mounting block (4) is fixedly installed on the upper outer side of the positioning sleeve (1). The mounting block (4) has two parallel guide grooves (5). The guide grooves (5) and the snap ring grooves (6) on the differential housing are in the same plane. A U-shaped positioning block is slidably connected in the mounting block (4). The positioning block has two insertion rods (7) that are adapted to the guide grooves (5) respectively. The insertion rods (7) can be inserted into the guide grooves (5) and the snap ring grooves (6) at the same time. The positioning block is driven by a linear motor (8).

2. The differential housing clamping structure for assembly according to claim 1, characterized in that, The cross-section of the insertion rod (7) is rectangular, and the front end of the insertion rod (7) is wedge-shaped.

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