阅读说明：本技术 一种自动控制的数控车床尾座进给方法 (Automatically-controlled numerical control lathe tailstock feeding method ) 是由 李慧晶 于 2019-03-07 设计创作，主要内容包括：本发明公开了数控车床加工技术领域的一种自动控制的数控车床尾座进给方法,具有以下步骤：步骤1,将工件安装在数控车床上；步骤2,对控制器预设定顶针顶紧力值；步骤3,对控制器预设定最大进给速度；步骤4,顶推电机旋转并驱动顶推杆,顶推杆带动顶针一同进给直到与工件接触；步骤5,顶推电机对工件按照预设值进行顶紧；步骤6,锁紧电极启动并将顶针锁紧；步骤7,顶推电机按照预设程序进行进给,车床进行加工；步骤8,加工完成顶推电机以最大速度反转,解除对工件的顶紧；步骤9,取下工件,本发明可以对压紧力进行控制,使得加工效果更好,在加工过程中出现一些扰动因素也能及时调整避,出现意外时可以避免零件损坏节约成本。(The invention discloses an automatically controlled tailstock feeding method of a numerical control lathe, which belongs to the technical field of numerical control lathe processing and comprises the following steps: step 1, mounting a workpiece on a numerically controlled lathe; step 2, presetting a thimble jacking force value for the controller; step 3, presetting a maximum feeding speed for the controller; step 4, the pushing motor rotates and drives a pushing rod, and the pushing rod drives a thimble to feed together until the thimble is contacted with a workpiece; step 5, the pushing motor tightly pushes the workpiece according to a preset value; step 6, starting the locking electrode and locking the thimble; step 7, feeding the pushing motor according to a preset program, and machining by a lathe; 8, reversing the pushing motor at the maximum speed after the machining is finished, and releasing the pushing of the workpiece; and 9, taking down the workpiece, controlling the pressing force to ensure that the machining effect is better, timely adjusting and avoiding disturbance factors in the machining process, avoiding the damage of parts when accidents occur and saving the cost.)

1. An automatically controlled numerically controlled lathe tailstock feeding method uses a lathe tailstock with a pressure sensor (5), and is characterized in that: the device comprises a thimble (1), a push rod (2), a push motor (3), a locking motor (4), a controller, a pressure sensor (5) and a tailstock main body (6), wherein one end of the thimble (1) is fixedly connected with the pressure sensor (5), one side of the pressure sensor (5) is fixedly arranged at the end part of the push rod (2), the push rod (2) is driven by a push electrode, and the push electrode and the locking electrode are controlled by the controller;

the method comprises the following operation steps:

step 1, mounting a workpiece on a numerically controlled lathe;

step 2, presetting a jacking force value of the thimble (1) for the controller;

step 3, presetting a maximum feeding speed for the controller;

step 4, the pushing motor (3) rotates and drives the pushing rod (2), and the pushing rod (2) drives the ejector pin (1) to feed together until the ejector pin is contacted with a workpiece;

step 5, the pushing motor (3) tightly pushes the workpiece according to a preset value;

step 6, starting the locking electrode and locking the thimble (1);

step 7, feeding the pushing motor (3) according to a preset program, and machining by a lathe;

8, reversing the pushing motor (3) at the maximum speed after the machining is finished, and releasing the jacking of the workpiece;

and 9, taking down the workpiece.

2. The automatically controlled numerically controlled lathe tailstock feeding method as claimed in claim 1, characterized in that: the specific operation process of the step 4 is as follows:

the controller transmits a rotation pulse to the pushing motor (3), the pushing motor (3) rotates by an angle, the pressure sensor (5) transmits the detected pressure to the controller, the controller detects the data of the pressure sensor (5), if the pressure is zero, the rotation pulse is continuously transmitted to the motor after a period of time delay according to the maximum speed preset value, the previous process is repeated, and if the pressure is greater than zero, the step 5 is carried out.

3. The automatically controlled numerically controlled lathe tailstock feeding method according to claim 1, characterized in that: the specific operation process of the step 5 is as follows:

the controller transmits a rotation pulse to the pushing motor (3), the pushing motor (3) rotates by an angle, the pressure sensor (5) transmits the detected pressure to the controller, the controller detects the data of the pressure sensor (5), if the pressure is smaller than a preset value, the controller delays for a period of time according to the maximum speed preset value and then continues to transmit a rotation pulse to the motor and repeats the previous process, and if the pressure is larger than the preset value, the controller enters step 6.

4. The automatically controlled numerically controlled lathe tailstock feeding method according to claim 1, characterized in that: the specific operation process of the step 7 is as follows:

the controller judges whether the preset feeding position is reached, if not, the pressure value of the pressure sensor (5) at the moment is read, if the pressure value is smaller than the preset value, the delay is carried out for a period of time according to the maximum speed preset value, and a rotating pulse is continuously transmitted to the motor, otherwise, the rotating pulse is kept unchanged, and the operation of the step 8 is executed when the preset feeding position is reached.

5. The automatically controlled numerically controlled lathe tailstock feeding method according to claim 1, characterized in that: the specific operation process of the step 8 is as follows:

the controller sends reverse rotation pulses to the pushing motor (3) at the fastest frequency which can be received by the pushing motor (3), and the pushing motor (3) rotates reversely at the maximum speed.

Technical Field

The invention relates to the technical field of numerical control lathe machining, in particular to an automatically controlled tailstock feeding method of a numerical control lathe.

Background

The numerical control machine tool automatically processes the processed parts according to a processing program programmed in advance. The machining process route, process parameters, motion track, displacement, cutting parameters and auxiliary functions of a part are compiled into a machining program list according to instruction codes and program formats specified by a numerical control machine, contents in the program list are recorded on a control medium and then input into a numerical control device of the numerical control machine, so that the machine is instructed to machine the part, and the numerical control lathe is composed of a numerical control device, a lathe bed, a main spindle box, a tool rest feeding system, a tailstock, a hydraulic system, a cooling system, a lubricating system, a chip cleaner and the like

The lathe tailstock can automatically feed and drill and bore shaft holes, and a large number of holes in the middle of the shaft need to be machined in shaft parts. The most common processing method of the shaft hole is to clamp a drill bit on a lathe tailstock and make the tailstock feed. However, the machining method used in the prior art can only carry out and set feeding amount of feeding speed, and cannot control pressing force, so that the machining effect is not good enough, and disturbance factors can not be adjusted in time in the machining process.

Disclosure of Invention

The invention aims to provide an automatically controlled tailstock feeding method of a numerical control lathe, and aims to solve the problems that the feeding speed and the feeding amount can only be set and the pressing force cannot be controlled in the machining method used in the prior art in the background art, so that the machining effect is not good enough, and disturbance factors can not be adjusted in time in the machining process.

In order to achieve the purpose, the invention provides the following technical scheme: an automatically controlled numerically controlled lathe tailstock feeding method uses a lathe tailstock with a pressure sensor, and is characterized in that: the device comprises a thimble, a push rod, a push motor, a locking motor, a controller, a pressure sensor and a tailstock body, wherein one end of the thimble is fixedly connected with the pressure sensor, one side of the pressure sensor is fixedly arranged at the end part of the push rod, the push rod is driven by a push electrode, and the push electrode and the locking electrode are controlled by the controller;

the method comprises the following steps:

step 1, mounting a workpiece on a numerically controlled lathe;

step 2, presetting a thimble jacking force value for the controller;

step 3, presetting a maximum feeding speed for the controller;

step 4, the pushing motor rotates and drives a pushing rod, and the pushing rod drives a thimble to feed together until the thimble is contacted with a workpiece;

step 5, the pushing motor tightly pushes the workpiece according to a preset value;

step 6, starting the locking electrode and locking the thimble;

step 7, feeding the pushing motor according to a preset program, and machining by a lathe;

8, reversing the pushing motor at the maximum speed after the machining is finished, and releasing the pushing of the workpiece;

and 9, taking down the workpiece.

Preferably, the step 4 comprises the following processes:

the controller transmits a rotation pulse to the pushing motor, the pushing motor rotates by an angle, the pressure sensor transmits the detected pressure to the controller, the controller detects the data of the pressure sensor, if the pressure is zero, the controller delays for a period of time according to the maximum speed preset value and then continues to transmit a rotation pulse to the motor and repeats the previous process, and if the pressure is greater than zero, the controller enters the step 5.

Preferably, the step 5 comprises the following processes:

the controller transmits a rotation pulse to the pushing motor, the pushing motor rotates by an angle, the pressure sensor transmits the detected pressure to the controller, the controller detects the data of the pressure sensor, if the pressure is smaller than a preset value, the controller delays for a period of time according to the maximum speed preset value and then continues to transmit a rotation pulse to the motor and repeats the previous process, and if the pressure is larger than the preset value, the controller enters step 6.

Preferably, the step 7 comprises the following processes:

and the controller judges whether the preset feeding position is reached, if not, the pressure value of the pressure sensor at the moment is read, if the pressure value is smaller than the preset value, the delay is carried out for a period of time according to the maximum speed preset value, a rotation pulse is continuously transmitted to the motor, otherwise, the rotation pulse is kept unchanged, and if the preset feeding position is reached, the step 8 is carried out.

Preferably, the step 8 comprises the following processes:

the controller sends reverse rotation pulses to the pushing motor at the fastest frequency which can be received by the pushing motor, and the pushing motor rotates reversely at the maximum speed.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the pressure sensor is additionally arranged at the bottom of the thimble, so that the pressure can be used as a parameter for program presetting, when the program runs, before the controller sends a pulse to the pushing motor each time, the data fed back by the pressure sensor is detected, so that the motion of the pushing motor can be timely adjusted according to the current workpiece turning condition, the pressing force is controlled, the machining effect is better, disturbance factors can be timely adjusted and avoided in the machining process, and when an accident occurs, the damage to parts can be avoided, and the cost is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a tailstock used in the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a thimble 1, a push rod 2, a push motor 3, a locking motor 4, a pressure sensor 5 and a tailstock main body 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: an automatically controlled numerically controlled lathe tailstock feeding method uses a lathe tailstock with a pressure sensor 5, and is characterized in that: the automatic control digital control lathe tailstock feeding method comprises an ejector pin 1, an ejector rod 2, an ejector motor 3, a locking motor 4, a controller, a pressure sensor 5 and a tailstock body 6, wherein one end of the ejector pin 1 is fixedly connected with the pressure sensor 5, one side of the pressure sensor 5 is fixedly arranged at the end part of the ejector rod 2, the ejector rod 2 is driven by an ejector electrode, and the ejector electrode and an automatic control digital control lathe tailstock feeding method locking electrode are controlled by the controller;

the method comprises the following steps:

step 1, mounting a workpiece on a numerically controlled lathe;

step 2, presetting a jacking force value of the thimble 1 for the controller;

step 3, presetting a maximum feeding speed for the controller;

step 4, the pushing motor 3 rotates and drives the pushing rod 2, and the pushing rod 2 drives the ejector pin 1 to feed together until the ejector pin contacts with the workpiece;

step 5, the pushing motor 3 tightly pushes the workpiece according to a preset value;

step 6, starting the locking electrode and locking the thimble 1;

step 7, the pushing motor 3 feeds according to a preset program, and a lathe processes the materials;

step 8, reversing the pushing motor 3 at the maximum speed after the machining is finished, and releasing the pushing of the workpiece;

and 9, taking down the workpiece.

The automatically controlled numerical control lathe tailstock feeding method comprises the following steps of 4:

the controller transmits a rotation pulse to the pushing motor 3, the pushing motor 3 rotates by an angle, the pressure sensor 5 transmits the detected pressure to the controller, the controller detects the data of the pressure sensor 5, if the pressure is zero, the rotation pulse is continuously transmitted to the motor after a period of time delay according to the maximum speed preset value, the previous process is repeated, and if the pressure is larger than zero, the step 5 is carried out.

An automatically controlled numerical control lathe tailstock feeding method step 5 comprises the following processes:

the controller transmits a rotation pulse to the pushing motor 3, the pushing motor 3 rotates by an angle, the pressure sensor 5 transmits the detected pressure to the controller, the controller detects data of the pressure sensor 5, if the pressure is smaller than a preset value, the controller delays for a period of time according to the maximum speed preset value and then continues to transmit a rotation pulse to the motor and repeats the previous process, and if the pressure is larger than the preset value, the controller enters step 6.

An automatically controlled numerically controlled lathe tailstock feeding method, step 7, comprises the following processes:

the controller judges whether the preset feeding position is reached, if not, the pressure value of the pressure sensor 5 at the moment is read, if the pressure value is smaller than the preset value, the delay is carried out for a period of time according to the maximum speed preset value, and the rotation pulse is continuously transmitted to the motor, otherwise, the rotation pulse is kept unchanged, and if the preset feeding position is reached, the step 8 is carried out.

An automatically controlled numerical control lathe tailstock feeding method step 8 comprises the following processes:

the controller sends reverse rotation pulses to the pushing motor 3 at the fastest frequency which can be received by the pushing motor 3, and the pushing motor 3 rotates reversely at the maximum speed.

One specific application of this embodiment is: the ejector pin control device controls the ejector motor 4 by using the controller to control the ejector pin, meanwhile, the pressure sensor is additionally arranged at the bottom of the ejector pin, so that the pressure can be used as a parameter to carry out program presetting, and when the program runs, before the controller sends a pulse to the ejector motor 4 every time, the data fed back by the pressure sensor 5 is detected, so that the motion of the ejector motor 4 can be timely adjusted according to the current workpiece turning condition, the pressing force is controlled, the machining effect is better, disturbance factors can be timely adjusted and avoided in the machining process, and when an accident occurs, the damage of parts can be avoided, and the cost can be saved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.