Machine tool special for riveting globe joint

Abstract

The invention discloses a machine tool special for riveting a globe joint. The machine tool comprises an installation base, a riveting head and a power head, wherein the riveting head is arranged over the installation base, and the riveting head is connected to the bottom of the power head and driven by the power head to rotate. The machine tool is characterized by further comprising a servo motor and a torque detecting device, the servo motor pushes the power head and the riveting head to conduct vertical adjustment during working, the torque detecting device pushes a ball rod of a globe joint workpiece to swing in a leftward-rightward reciprocating mode during working, the torque detecting device comprises a positioning ring, a connecting plate, a torque sensor and a push-pull part, the positioning ring is used for buckling the ball rod of the globe joint workpiece, one end of the connecting plate is connected with the positioning ring, the other end of the connecting plate is connected with the torque sensor, the other end of the torque sensor is connected with the push-pull part, and the output end of the torque sensor is electrically connected with the servo motor. By the adoption of the machine tool, the driving torque requirement of the globe joint workpiece can be met as soon as the globe joint workpiece is riveted and assembled, production efficiency is improved, reworking of products is avoided, and production cost is saved.

Description

technical field [0001] The invention relates to a ball joint riveting machine tool specially used for riveting and assembling ball joint products. Background technique [0002] Ball joint products are named for their flexible rotation like joints. Ball joint products are widely used in transmission machinery and construction machinery. For the ball joint used in the front and rear axles of the vehicle, its general structure is: including the ball joint, the ball seat, the backing plate, the shell and the upper cover, the ball head of the ball joint, the ball seat and the backing plate are located in the inner hole of the shell The upper cover is connected to the opening of the upper end of the shell, and the upper cover is riveted to form the upper cover riveting edge, and the upper cover riveting edge defines the ball head of the ball head, the ball head seat and the backing plate in the shell. The riveting edge of the upper cover has a pressing force on the backing plate....

AI Technical Summary

Problems solved by technology

The riveting edge of the upper cover has a pressing force on the backing plate. If the deformation of the riveting edge of the upper cover is too large when riveting the upper cover, the pressure on the backing plate will be large. If the contact pressure between the head seats is high, the rotation of the ball joint will be inflexible; on the contrary, if the deformation of the riveted edge of the upper cover is too small, then the pressure on the backing plate will be small, and the ball head of the ball head and the ball head seat will If the contact pressure between them is small, the rotation of the ball joint will be too loose and the gap will be too large

Therefore, the current method used is: firstly perform the riveting process on the ball joint product, and then take it to a special torque testing platform to detect the rotational torque of the ball joint, and the production efficiency is low; the more serious problem is that after the riveting process Finally, there will be a lot of ball joint products with unqualified torque, which will lead to rework and repair of a large number of products, and the production cost will be high

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