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Mechanical limit transmission device of machine tool

A transmission device and mechanical technology, applied in the field of machine tool transmission, can solve the problems of difficult to meet requirements, high environmental requirements and high cost, and achieve the effects of safe and reliable failure rate, low failure rate and simple structure

Inactive Publication Date: 2015-02-25
王志雪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the machine tool sometimes needs to perform repeated actions with precise positioning. For example, it needs to repeatedly advance to a certain limited position. At present, limit switches or position sensors are generally used. When the actuator reaches the specified position, the limit switch or position sensor is touched. Then The actuator stops moving forward, waits for other devices to run or directly retreats, and repeatedly executes the above actions. Both the limit switch and the position sensor have delays and errors. It is difficult to meet the requirements in occasions with high precision requirements, or need to use expensive high-precision Sensors, but there are also disadvantages such as high cost and high environmental requirements

Method used

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  • Mechanical limit transmission device of machine tool
  • Mechanical limit transmission device of machine tool
  • Mechanical limit transmission device of machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 , figure 2 and image 3 As shown, a machine tool mechanical limit transmission device is provided with a torsion clutch between the power system 1 of the machine tool equipment and the equipment execution device 8 of the machine tool equipment.

[0022] The torsion clutch includes a power input shaft 2, a power output shaft 7, a torque output slider 6, a spring 4, a connecting ball 5 and a support seat 3;

[0023] One end of the power input shaft 2 is in transmission connection with the power system 1;

[0024] The power input shaft 2 is sequentially sleeved with the support base 3, the spring 4, the torque output slider 6 and the power output shaft 7 from one side of the power system 1 to the other side; the support base 3 is fixedly connected to On the power input shaft 2, the torque output slider 6 and the power output shaft 7 are slidably sleeved on the power input shaft 2;

[0025] The torque output slider 6 and the power input shaft 2 are pro...

Embodiment 2

[0032] The rest is the same as that of Embodiment 1, except that the contact surfaces between the bumps 9 are processed with arc chamfers. It can facilitate disengagement and engagement between the torque output slider 6 and the protrusion 9 of the power output shaft 7, and reduce impact and wear. The power output shaft 7 is connected to the power input shaft 2 through a bearing. Friction and wear can be reduced, and their mutual position can also be fixed.

Embodiment 3

[0034] The rest are the same as in Embodiment 1, except that the mechanical limit transmission device of the machine tool is also provided with a sensor for detecting the torque, the angle of rotation of the torque output slider 6 or the position of the torque output slider 6, and the sensor is connected with the power System electrical connection. When an obstacle is encountered, the sensor detects a relevant variable, and controls the power system 1 to stop running, so as to cooperate with other components to run or wait for the fault to be eliminated.

[0035] The beneficial effect of adopting this technical solution is: a torque clutch is arranged between the power system of the machine tool and the torque output shaft of the machine tool, so that when the torque output shaft of the equipment is blocked, the torque on the transmission shaft increases, Finally, the torsion clutch is released, and the torque output shaft of the equipment maintains harmless or required pressu...

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PUM

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Abstract

The invention discloses a mechanical limit transmission device of a machine tool, wherein a torsion clutch is arranged between the power system of the machine tool and the torque output shaft of the machine tool, so that the torque of a transmission shaft is increased when the torque output shaft of the equipment is blocked; eventually, torsion clutch is tripped; the torque output shaft of the equipment maintains harmless or desired pressure or clamping force; the motor cannot be burnt and is capable of providing relatively accurate pressure and clamping force in demanding situations; if repeated accurate positioning is needed, the transmission device can be adopted; when the transmission device reaches a limited position, the torsion clutch acts; at the moment, the motor rotates reversely to drive the transmission device to draw back, etc; therefore, accurate positioning is realized; and the transmission device is the mechanical limit transmission device, and is simple in structure, low in manufacture cost, low in fault rate, and safe and reliable.

Description

technical field [0001] The invention relates to the field of machine tool transmission, in particular to a machine tool mechanical limit transmission device. Background technique [0002] Many functions of mechanical equipment are realized through torque transmission. When the load end is overloaded or stuck, it will cause the motor that provides power to stall and heat up or even burn out. Therefore, a relay overcurrent protection device is generally used to cut off the power supply of the motor in time. , in order to achieve the purpose of protecting the motor. In practical applications, the motor is often burned due to the failure of the over-current protection device. Therefore, the over-current protection device cannot completely prevent accidents. In addition, some equipment needs to apply and maintain a certain pressure on the workpiece. At present, it is generally used to advance the executive components such as the pressing block or the workpiece fixture to the work...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H35/10F16D43/204B23Q3/00
Inventor 黄建辉
Owner 王志雪