Pull rod device with central pipeline and cutter loosening and clamping method

Abstract

The invention discloses a pull rod device with a central pipeline. The pull rod device with the central pipeline comprises a rotor, wherein a pull rod, a front connecting rod, a support rod and a pullclaw seat are arranged in the rotor; the front connecting rod is fixed at the front end of the pull rod; the support rod is fixed at the front end of the front connecting rod; the front connecting rod is sleeved with and movably connected with the pull claw seat; the front end of the pull claw seat is provided with a pull claw surrounding the support rod; the front end of the rotor is provided with a cutter handle; the rear end of the cutter handle is inserted into the rotor and clamped between the pull claw and the rotor; the pull rod, the front connecting rod and the support rod are all hollow; an inner cooling pipe is fixed at the center of the rear end of the cutter handle; the inner cooling pipe is inserted at the front end of the support rod; a cutter handle air passage is formed inthe cutter handle; the pull rod, the front connecting rod, the support rod, the inner cooling pipe and the cutter handle air passage sequentially communicate to form the central pipeline; and a cutter handle air hole communicating with the cutter handle air passage is formed in the side portion of the cutter handle. By means of the pull rod device with the central pipeline, not only can the function of pushing the cutter handle and a cutter be achieved, but also the cutter handle and the cutter can be cooled.

Description

technical field [0001] 本发明涉及电主轴,尤其涉及一种具有中心管路的拉杆装置以及松夹刀方法。 Background technique [0002] 电主轴是应用于机床上,用于实现精密加工的机械设备,现有的电主轴,其换刀过程中会涉及松刀和夹刀步骤,松刀时需要借助中心气路的气流将刀柄清洁,但是在夹刀以后,由于气道关闭而无法吹出气流,由此可见,现有技术中的拉杆装置,其内部的中心气路只具有清洁刀柄的作用,而在夹刀以后,因气路关闭而导致中心气路内的气流未能发挥任何作用,所以气流的利用率较低。此外,刀柄和刀具部分在加工过程中将会产生大量热量,刀柄和刀具若得不到有效冷却降温,将严重影响主轴的加工精度,难以满足加工要求。 Contents of the invention [0003] 本发明要解决的技术问题在于,针对现有技术的不足,提供提供一种既能实现清洁刀柄的功能,又能对刀柄和刀具进行冷却降温的具有中心管路的拉杆装置以及松夹刀方法。 [0004] 为解决上述技术问题,本发明采用如下技术方案。 [0005] 一种具有中心管路的拉杆装置,其包括有转子,所述转子内设有拉杆、前连接杆、撑杆和拉爪座,所述前连接杆固定于所述拉杆的前端,所述撑 杆固定于所述前连接杆的前端,所述拉爪座套设于所述前连接杆的外侧且二者活动连接,所述拉爪座的前端设有拉爪,所述拉爪环绕于 所述撑杆,所述转子的前端设有刀柄,所述刀柄的后端插设于所述转子内,且所述刀柄的后端卡设于所述拉爪与所述转子之 Between; the pull rod, the front connecting rod and the strut are all hollow, and the center of the rear end of the handle is fixed with an internal cooling pipe, and the internal cooling pipe is inserted at the front end of the strut, and the handle There is an air channel for the handle, and the tie rod, the front connecting rod...

AI Technical Summary

Problems solved by technology

[0002] The electric spindle is a mechanical device used on machine tools to achieve precision machining. The existing electric spindle involves the steps of loosening and clamping the tool during the tool change process. When releasing the tool, the tool handle needs to be moved by the airflow of the central air circuit. Clean, but after the knife is clamped, the air flow cannot be blown out due to the closure of the air passage. It can be seen that the center air path inside the pull rod device in the prior art only has the function of cleaning the handle of the knife, and after the knife is clamped, because of The gas path is closed and the air flow in the central air path fails to play any role, so the utilization rate of the air flow is low

In addition, the tool holder and tool will generate a lot of heat during the machining process. If the tool holder and tool cannot be cooled effectively, it will seriously affect the machining accuracy of the spindle, making it difficult to meet the processing requirements.

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