Punching and riveting tool for double-arm differential mechanism
By designing a double-arm differential rivet tooling, and using the rotary cylinder and the stamping cylinder to achieve simultaneous riveting at both ends, the problems of low assembly efficiency and poor consistency of the double-arm differential in the prior art are solved, and the working efficiency and product quality are significantly improved.
Patent Information
- Application Number
- CN202421879473.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-06
AI Technical Summary
When assembling the planetary wheel, the double-arm differential needs to be positioned multiple times for riveting, which is inefficient and the riveting pressure at both ends leads to poor consistency.
A double-arm differential punching and riveting tool is designed, including a base, a bracket, a support seat, a rotary cylinder, a mounting seat, a lower rivet punch, a stamping cylinder and an upper rivet punch. The rotation of the mounting seat is controlled by the rotary cylinder, and the stamping cylinder controls the upper rivet punch to press down, achieving riveting pressure at both ends at the same time.
The work efficiency is greatly improved, and the rivets at both ends ensure the consistency of processing and improve product quality.
Smart Images

Figure CN223000033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reducer processing, and particularly relates to a double-arm differential riveting tooling. Background Technique
[0002] When assembling the planet gears of a double-arm differential, it is necessary to rivet and fix both ends of the planet gear shaft to its double arms. In the past, after positioning the differential first, a riveting tool was used to rivet one end of it one by one first, and then after turning the differential over, it was positioned and riveted at the other end again. This method requires multiple positionings, with low efficiency, and the two ends are riveted separately, resulting in poor consistency. Therefore, improvement is still needed. Content of the Utility Model
[0003] The purpose of the utility model is to provide a double-arm differential riveting tooling to solve the problems mentioned in the background technique.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A double-arm differential riveting tooling includes a base, a bracket, a support seat, a rotary cylinder, a mounting seat, a lower riveting punch, a stamping cylinder, and an upper riveting punch; the support seat is fixed on the base; the mounting seat is rotatably connected above the support seat; the rotary cylinder is installed on the base and its power output end is connected to the mounting seat; a plurality of lower riveting punches are arranged and circumferentially distributed above the mounting seat; the bracket is fixed on the base; the stamping cylinder is installed above the bracket and its power output end is connected to the upper riveting punch; the upper riveting punch is located directly above one of the lower riveting punches.
[0006] For a further description of the utility model, the support seat is of an inverted U-shaped structure; a clearance hole is provided in the middle of the support seat; the rotary cylinder is located inside the support seat and its power output end is connected to the mounting seat through the clearance hole position.
[0007] For a further description of the utility model, six lower riveting punches are provided.
[0008] The beneficial effects of the utility model are as follows:
[0009] In this design, the double-arm differential is placed above the mounting seat, and the lower ends of its planet shafts are positioned and supported by the lower riveting punches. The rotary cylinder controls the rotation of the mounting seat. Each time it rotates by an angle, the stamping cylinder controls the upper riveting punch to press down. The upper riveting punch and the lower riveting punch simultaneously rivet both ends of the shaft until all the planet shafts are riveted. Then the double-arm differential is taken out to complete the processing of one product. This setting can greatly improve work efficiency, and the two ends are riveted simultaneously, with high processing consistency and improved product quality. Description of the Drawings
[0010] Figure 1 This is the overall structure diagram of the double-arm differential of the present utility model placed on the double-arm differential riveting tooling. Specific embodiments
[0011] The present utility model will be further described below in conjunction with the accompanying drawings:
[0012] As Figure 1 shown, a double-arm differential riveting tooling includes a base 1, a bracket 2, a support seat 3, a rotary cylinder 4, a mounting seat 5, a lower riveting punch 6, a stamping cylinder 7 and an upper riveting punch 8; the support seat 3 is fixed on the base 1; the mounting seat 5 is rotatably connected above the support seat 3; the rotary cylinder 4 is installed on the base 1 and the power output end is connected to the mounting seat 5; a plurality of lower riveting punches 6 are arranged and circumferentially distributed above the mounting seat 5; the bracket 2 is fixed on the base 1; the stamping cylinder 7 is installed above the bracket 2 and the power output end is connected to the upper riveting punch 8; the upper riveting punch 8 is located directly above one of the lower riveting punches 6; in this design, the double-arm differential 100 is placed above the mounting seat 5, the lower riveting punch 6 extends into the riveting hole at the bottom of the planetary shaft 101 to position and support the double-arm differential 100, the rotary cylinder 4 controls the rotation of the mounting seat 5, and every time it rotates a set angle, the stamping cylinder 7 controls the downward pressure of the upper riveting punch 8, and the upper riveting punch 8 and the lower riveting punch 6 simultaneously rivet both ends of the shaft until all the planetary shafts 101 are riveted, and then the double-arm differential 100 is taken out to complete the processing of one product. This setting can greatly improve the work efficiency, and the two ends are riveted simultaneously, with high processing consistency and improved product quality.
[0013] In this design, the support seat 3 is of an inverted U-shaped structure; a clearance hole is provided in the middle of the support seat 3; the rotary cylinder 4 is located inside the support seat 3 and the power output end is connected to the mounting seat 5 through the clearance hole position.
[0014] Six lower riveting punches 6 are provided. The double-arm differential 100 of this design is a six-axis differential, and six lower riveting punches 6 are provided corresponding to the six planetary shafts 101 respectively, and the rotary cylinder 4 controls the mounting seat 5 to rotate 60 degrees each time.
[0015] The above does not impose any limitation on the technical scope of the present model. Any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present model.
Claims
1. A double-arm differential riveting tool, characterized in that: It includes a base, a bracket, a support seat, a rotary cylinder, a mounting seat, a lower riveting punch, a stamping cylinder and an upper riveting punch; the support seat is fixed on the base; the mounting seat is rotatably connected above the support seat; the rotary cylinder is installed on the base and the power output end is connected to the mounting seat; a plurality of lower riveting punches are arranged and are circumferentially distributed and installed above the mounting seat; the bracket is fixed on the base; the stamping cylinder is installed above the bracket and the power output end is connected to the upper riveting punch; the upper riveting punch is located directly above one of the lower riveting punches.
2. The double-arm differential punching and riveting tool according to claim 1, characterized in that: The support seat is an inverted U-shaped structure; a clearance hole is provided in the middle of the support seat; the rotary cylinder is located inside the support seat and the power output end is connected to the mounting seat through the clearance hole.
3. The double-arm differential punching and riveting tool according to claim 1, characterized in that: The lower riveting punches are provided with six.