Internal expansion type collet chuck for machining differential shell

Abstract

The utility model provides an internal expansion type collet chuck for processing a differential shell, which relates to the technical field of machining clamps, and comprises an internal expansion type collet chuck component, the internal expansion type collet chuck component comprises a supporting seat, a shaft body penetrates through the supporting seat, one end of the shaft body is connected with a mounting ring, and the other end of the shaft body is connected with a clamping ring. A collet chuck is mounted on the side face of the mounting ring, and a plurality of mounting holes are formed in the mounting ring. According to the utility model, the collet chuck is aligned with the inner hole of the differential shell and is inserted into the inner hole of the differential shell, and then the inner expansion structure works, so that rapid expansion and fixation can be realized, the differential shell can be fixed and clamped favorably, workpiece deformation caused by non-uniform clamping force is effectively avoided, the machining precision of the differential shell is improved, and the machining efficiency is improved. And meanwhile, by adjusting the expansion degree, the clamping device is suitable for the differential shells with different inner diameters, the purchase cost of the clamp is reduced, meanwhile, the use flexibility of the collet chuck is also improved, and the differential shells with different models can be quickly switched and machined.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, and in particular to an internal expansion collet for machining differential housings. Background Technology

[0002] As a key component of the automotive transmission system, the differential plays a crucial role in vehicle operation. It enables the left and right (or front and rear) drive wheels to rotate at different speeds, thus meeting the power transmission needs of the vehicle during cornering and other driving conditions. The differential housing, as a vital component of the differential, directly affects the overall performance and reliability of the differential due to its machining quality. Reliable clamping is fundamental to ensuring machining accuracy during the differential housing machining process. Currently, a wide variety of fixtures are used in the field of differential housing machining, but several problems still need to be addressed.

[0003] Existing chucks for machining differential housings are not convenient for providing stable clamping of the differential housing during use. They are prone to loosening, which can lead to machining errors and reduce machining accuracy. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that existing chucks for machining differential housings are not convenient to provide stable clamping for the differential housing during use, and are prone to machining errors due to loosening of the chuck, which in turn leads to a reduction in machining accuracy. Therefore, an internal expansion collet chuck for machining differential housings is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an internal expansion collet for machining a differential housing, comprising an internal expansion collet assembly, the internal expansion collet assembly comprising a support base, a shaft penetrating through the interior of the support base, a mounting ring connected to one end of the shaft, a collet mounted on the side of the mounting ring, and multiple mounting holes formed inside the mounting ring.

[0006] Preferably, the side of the support base is provided with an internal expansion structure, and a transmission belt is connected to the outer side of the shaft.

[0007] Preferably, one end of the transmission belt is wound with an electric motor, and the electric motor is connected to the support base.

[0008] Preferably, the support base is provided with multiple heat dissipation fins.

[0009] Preferably, a connecting bushing is installed at one end of the support base, and the connecting bushing is located on the outside of the shaft.

[0010] Preferably, the support base has multiple bolt holes.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by aligning the collet with the inner hole of the differential housing and inserting it, and then working through the internal expansion structure, rapid expansion and fixing can be achieved. This facilitates the fixed clamping of the differential housing, effectively avoids workpiece deformation caused by uneven clamping force, and improves the machining accuracy of the differential housing. At the same time, by adjusting the degree of expansion, it is easy to adapt to various differential housings with different inner diameters, reducing the purchase cost of fixtures. It also improves the flexibility of the collet's use, enabling quick switching to process different models of differential housings, meeting diverse production needs. Furthermore, the entire process is simple to operate and short in time, which helps to improve overall production efficiency and reduce production costs.

[0013] 2. In this utility model, the mounting hole facilitates the installation of the collet on the shaft, which is beneficial for the installation and disassembly of the collet, and thus facilitates the maintenance and replacement of the collet. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of an internally expanding collet for machining a differential housing;

[0015] Figure 2 This utility model presents a schematic diagram of another angle of the internal expansion collet for machining differential housings;

[0016] Figure 3 This utility model provides a schematic diagram of another angle structure of an internal expansion collet for machining a differential housing;

[0017] Figure 4 This utility model presents an enlarged structural diagram of point A of an internal expansion collet for machining a differential housing.

[0018] Legend: 1. Internal expansion collet assembly; 101. Motor; 102. Drive belt; 103. Internal expansion structure; 104. Support base; 105. Connecting bushing; 106. Shaft; 107. Collet; 108. Mounting ring; 109. Mounting hole. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: an internal expansion collet for machining a differential housing, including an internal expansion collet assembly 1. The internal expansion collet assembly 1 includes a support base 104, a shaft 106 passing through the interior of the support base 104, a mounting ring 108 connected to one end of the shaft 106, a collet 107 mounted on the side of the mounting ring 108, a plurality of mounting holes 109 opened inside the mounting ring 108, an internal expansion structure 103 provided on the side of the support base 104, and a transmission belt 102 connected to the outer side of the shaft 106.

[0022] In this embodiment, the mounting hole 109 facilitates the installation of the collet 107 on the shaft 106, making it easier to install and remove the collet 107, and thus facilitating its maintenance and replacement. The collet 107 is aligned with the inner hole of the differential housing and inserted, then operates through the internal expansion structure 103, achieving rapid tightening and fixation. This effectively secures the differential housing, preventing workpiece deformation caused by uneven clamping force and improving the machining accuracy of the differential housing. Furthermore, by adjusting the tightening degree, it can be adapted to various differential housings with different inner diameters, reducing the cost of fixtures and enhancing the flexibility of the collet 107. It allows for quick switching between machining different models of differential housings, meeting diverse production needs. The entire process is simple to operate and quick, improving overall production efficiency and reducing production costs.

[0023] Example 2: As Figures 1-4 As shown, a motor 101 is wound around one end of the transmission belt 102. The motor 101 is connected to the support base 104. Multiple heat dissipation fins are provided on the support base 104. A connecting bushing 105 is installed on one end of the support base 104. The connecting bushing 105 is located on the outside of the shaft body 106. Multiple bolt holes are provided on the support base 104.

[0024] In this embodiment, the transmission belt 102 is driven to rotate by the electric motor 101, which in turn drives the shaft 106 to rotate, which in turn drives the collet 107 to rotate. The support seat 104 provides stable support, and the connecting bushing 105 is sleeved on the outside of the shaft 106 to provide support for the shaft 106.

[0025] The working principle of this embodiment is as follows: In use, the mounting hole 109 facilitates the installation of the collet 107 on the shaft 106, which is convenient for the installation and disassembly of the collet 107, and thus facilitates the maintenance and replacement of the collet 107. The collet 107 is aligned with the inner hole of the differential housing and inserted, and then the internal expansion structure 103 works to achieve rapid expansion and fixation, which is beneficial for fixing and clamping the differential housing. Disassembly is performed by reversing the operation. The electric motor 101 drives the transmission belt 102 to rotate, which in turn drives the shaft 106 to rotate, which in turn drives the collet 107 to rotate. The support seat 104 provides stable support, and the connecting bushing 105 is sleeved on the outside of the shaft 106 to provide support for the shaft 106.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An internal expansion collet for machining a differential housing, characterized in that: The device includes an internal expansion collet assembly (1), which includes a support base (104). A shaft (106) passes through the interior of the support base (104). One end of the shaft (106) is connected to a mounting ring (108). A collet (107) is mounted on the side of the mounting ring (108). The mounting ring (108) has multiple mounting holes (109) inside.

2. The internal expansion collet for machining a differential housing according to claim 1, characterized in that: The side of the support base (104) is provided with an internal expansion structure (103), and the outer side of the shaft (106) is connected with a transmission belt (102).

3. The internal expansion collet for machining a differential housing according to claim 2, characterized in that: One end of the transmission belt (102) is wound with an electric motor (101), and the electric motor (101) is connected to the support base (104).

4. The internal expansion collet for machining a differential housing according to claim 1, characterized in that: The support base (104) is provided with multiple heat dissipation fins.

5. The internal expansion collet for machining a differential housing according to claim 1, characterized in that: A connecting bushing (105) is installed at one end of the support base (104), and the connecting bushing (105) is located on the outside of the shaft body (106).

6. The internal expansion collet for machining a differential housing according to claim 1, characterized in that: The support base (104) has multiple bolt holes.

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