阅读说明：本技术 一种数控车床尾座进给控制系统 (Numerical control lathe tailstock feeding control system ) 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技术领域的一种数控车床尾座进给控制系统,其使用的是一种液压缸驱动车床尾座顶尖轴进给的驱动装置,包括顶尖轴、顶尖、尾座、顶尖筒、液压缸、液压杆、转动丝杠和手柄,液压缸内部的液压杆通过联轴器固定连接有顶尖轴,液压杆的另一端伸出液压缸固定连接有手柄,液压缸通过法兰盘固定安装在尾座端部,液压缸侧壁固定连接有液压集成阀,液压集成阀包括外壳体、换向摇杆、调速转扭、电磁控制开关和进给摇杆,液压集成阀底部固定连通有进油管道和出油管道,尾座顶部固定安装有位移传感器和显示器。本发明可以实现自动进给或自动退出,换向简单快捷,可以调整进给速度,可以实现定量进给。(The invention discloses a numerical control lathe tailstock feed control system in the technical field of numerical control lathes, which is used as a driving device for driving a lathe tailstock center shaft to feed by a hydraulic cylinder, and comprises a center shaft, a center, a tailstock, a center barrel, a hydraulic cylinder, a hydraulic rod, a rotary screw rod and a handle, wherein the hydraulic rod in the hydraulic cylinder is fixedly connected with the center shaft through a coupler, the other end of the hydraulic rod extends out of the hydraulic cylinder and is fixedly connected with the handle, the hydraulic cylinder is fixedly arranged at the end part of the tailstock through a flange plate, the side wall of the hydraulic cylinder is fixedly connected with a hydraulic integrated valve, the hydraulic integrated valve comprises an outer shell, a reversing rocker, a speed regulating knob, an electromagnetic control switch and a feed rocker, the bottom of the hydraulic integrated valve is fixedly communicated with an oil inlet pipeline and an oil outlet pipeline, and. The invention can realize automatic feeding or automatic quitting, has simple and quick reversing, can adjust the feeding speed and can realize quantitative feeding.)

1. The utility model provides a numerical control lathe tailstock feed control system, what its used is the drive arrangement that a hydraulic cylinder drive lathe tailstock center axle fed, including center axle (1), top (2), tailstock (3), center section of thick bamboo (4), pneumatic cylinder (5), hydraulic stem (6), rotation lead screw (7) and handle (8), top (2) axle (1) are passed through shaft coupling fixedly connected with in hydraulic cylinder (5) inside hydraulic stem (6), pneumatic cylinder (5) fixedly connected with handle (8) are stretched out to the other end of hydraulic stem (6), pneumatic cylinder (5) are through ring flange fixed mounting at tailstock (3) tip, its characterized in that: pneumatic cylinder (5) lateral wall fixedly connected with hydraulic pressure integrated valve (9), hydraulic pressure integrated valve (9) are including shell body (10), switching-over rocker (11), speed governing turn round (12), electromagnetic control switch (13) and feed rocker (14), switching-over rocker (11) and electromagnetic control switch (13) fixed mounting are in shell body (10) lateral wall, switch speed governing turn round (12) fixed mounting is at shell body (10) antetheca, feed rocker (14) fixed mounting at shell body (10) back wall, hydraulic pressure integrated valve (9) bottom fixed intercommunication has into oil pipe way (15) and goes out oil pipe way (16), tailstock (3) top fixed mounting has displacement sensor (17) and display (18).

2. The numerically controlled lathe tailstock feed control system according to claim 1, characterized in that: a main oil way and two auxiliary oil ways are fixedly arranged in the hydraulic integrated valve (9), the electromagnetic control switch (13) is an electromagnetic valve, the electromagnetic control switch (13) is installed on the main oil way, and the oil inlet pipeline (15) is communicated with the main oil way.

3. The numerically controlled lathe tailstock feed control system according to claim 1, characterized in that: the reversing rocker (11) consists of a rocker and a reversing valve, the reversing valve is installed on a main oil path, and the reversing valve is installed behind the electromagnetic control switch (13).

4. The numerically controlled lathe tailstock feed control system according to claim 1, characterized in that: the speed regulation knob (12) consists of a knob and a flow control valve, and the flow control valve is installed on one of the auxiliary oil paths.

5. The numerically controlled lathe tailstock feed control system according to claim 1, characterized in that: the feeding rocker (14) consists of a rocker and a fixed value control valve, and the fixed value control valve is arranged on the other auxiliary oil path.

6. The numerically controlled lathe tailstock feed control system according to claim 1, characterized in that: the tip shaft (1) end part is fixedly provided with a mounting rack (19), and the side wall of the mounting rack (19) is fixedly provided with a moving end of a displacement sensor (17).

Technical Field

The invention relates to the technical field of numerical control lathes, in particular to a tailstock feeding control system of a numerical control lathe.

Background

At present, the tailstock of a common lathe of various types is fixed on a lathe bed by a locking device and does not have an automatic feeding function. The main function of the tailstock is to perform centering or manually operate the hand wheel of the tailstock to feed to perform drilling processing at a common distance, so that the labor intensity of workers is high and the efficiency is not high. Because the deep hole processing can not be carried out on the common lathe, the processing range of the common lathe is limited, workpieces with deep holes which can be processed on the common lathe through one-time clamping can not be finished, the processing precision is influenced, the efficiency is low, and the processing cost is increased.

At present, chinese patent with application number CN201610592473.4 discloses a feeding control system for tailstock of a numerically controlled lathe, which comprises a rack, a cylinder, an electromagnetic directional valve, a rack guide groove, a reset switch and a controller, wherein the controller is installed in a machine tool power distribution cabinet and electrically connected with the numerically controlled system and the electromagnetic directional valve, the reset switch is installed in front of a saddle of the numerically controlled lathe and electrically connected with the controller, a driving motor is fixedly connected with the tailstock of the numerically controlled lathe and electrically connected with the controller, the rack is fixed at the front end of the cylinder, the rack is installed in the guide groove and is meshed with a large gear, the cylinder is a finger-shaped cylinder with adjustable stroke, and the electromagnetic directional valve controls the expansion and contraction of the cylinder. Although the device can control the feeding of the finished bed, the feeding is automatically controlled by a sensor, a specific program needs to be designed, the price is high when the device is set, the device is not suitable for small-batch workpieces, and the cost is increased.

Based on the above, the invention designs a numerical control lathe tailstock feeding control system to solve the above problems.

Disclosure of Invention

The invention aims to provide a tailstock feeding control system of a numerical control lathe, which aims to solve the problems that a tailstock provided in the background technology is fixed on a lathe body, does not have an automatic feeding function, cannot finish workpieces with deep holes which can be machined on a common lathe through one-time clamping, influences the machining precision, is low in efficiency, is automatically controlled by a sensor, is high in price, is not suitable for small-batch workpieces and improves the cost.

In order to achieve the purpose, the invention provides the following technical scheme: a numerical control lathe tailstock feed control system uses a hydraulic cylinder to drive a driving device for feeding a lathe tailstock center shaft, the driving device comprises the center shaft, a center, a tailstock, a center cylinder, a hydraulic rod, a rotary lead screw and a handle, the hydraulic rod in the hydraulic cylinder is fixedly connected with the center shaft through a coupler, the other end of the hydraulic rod extends out of the hydraulic cylinder and is fixedly connected with the handle, the hydraulic cylinder is fixedly arranged at the end part of the tailstock through a flange plate, the side wall of the hydraulic cylinder is fixedly connected with a hydraulic integrated valve, the hydraulic integrated valve comprises an outer shell, a reversing rocker, a speed-regulating turn knob, an electromagnetic control switch and a feed rocker, the reversing rocker and the electromagnetic control switch are fixedly arranged on the side wall of the outer shell, the switch speed-regulating turn knob is fixedly arranged on the front wall of the outer shell, the feed rocker is fixedly arranged on the rear wall, and a displacement sensor and a display are fixedly arranged at the top of the tailstock.

Preferably, a main oil way and three auxiliary oil ways are fixedly arranged in the hydraulic integrated valve, the electromagnetic control switch is an electromagnetic valve, the electromagnetic control switch is installed on the main oil way, and the oil inlet pipeline is communicated with the main oil way.

Preferably, the reversing rocker consists of a rocker and a reversing valve, the reversing valve is installed on the main oil path, and the reversing valve is installed behind the electromagnetic control switch.

Preferably, the speed regulation knob is composed of a knob and a flow control valve, and the flow control valve is installed on one of the auxiliary oil paths.

Preferably, the feed rocker consists of a rocker and a fixed-value control valve, and the fixed-value control valve is installed on the other auxiliary oil path.

Preferably, the tip shaft end part is fixedly provided with an installation frame, and the side wall of the installation frame is fixedly provided with a moving end of the displacement sensor.

Compared with the prior art, the invention has the beneficial effects that: the invention opens the main oil path channel by switching on the electromagnetic control switch, and then rotates the rocker of the reversing rocker leftwards or rightwards, thereby realizing automatic feeding or automatic exit, and the reversing is simple and quick. The feeding speed of the tip can be adjusted by increasing or reducing the oil inlet flow through the flow control valve through forward or backward rotation of the speed regulating knob, and the feeding speed can be adjusted manually, so that the operation is flexible and the adjustment is quick. The feeding rocker is rotated to a fixed position in the forward direction, the oil inlet flow is controlled to be at a specific value through a fixed value control valve in the hydraulic integrated valve, the center shaft is driven to obtain a stable uniform feeding speed, and automatic uniform feeding is achieved. Through fixing the removal end with the stay cord on the mounting bracket, displacement sensor shows the displacement distance of apical axis in real time through the display, sets for displacement distance cooperation solenoid electric switch through displacement sensor, can realize the ration and feed, and the precision is high, need not real-time manual measurement, has improved efficiency.

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 side view partially in section of the present invention;

FIG. 2 is a schematic diagram of a right view structure according to the present invention;

FIG. 3 is a schematic top view of the present invention.

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

1-a centre shaft, 2-a centre, 3-a tailstock, 4-a centre barrel, 5-a hydraulic cylinder, 6-a hydraulic rod, 7-a rotating lead screw, 8-a handle, 9-a hydraulic integrated valve, 10-an outer shell, 11-a reversing rocker, 12-a speed regulating torque, 13-an electromagnetic control switch, 14-a feeding rocker, 15-an oil inlet pipeline, 16-an oil outlet pipeline, 17-a displacement sensor, 18-a display and 19-a mounting rack.

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. 1-3, the present invention provides a technical solution: a numerical control lathe tailstock feed control system uses a hydraulic cylinder to drive a driving device for feeding a tailstock center shaft of a lathe tailstock, and comprises a center shaft 1, a center 2, a tailstock 3, a center cylinder 4, a hydraulic cylinder 5, a hydraulic rod 6, a rotary screw rod 7 and a handle 8, wherein the hydraulic rod 6 inside the hydraulic cylinder 5 is fixedly connected with the center 2 shaft 1 through a coupler, the other end of the hydraulic rod 6 extends out of the hydraulic cylinder 5 and is fixedly connected with the handle 8, the hydraulic cylinder 5 is fixedly arranged at the end part of the tailstock 3 through a flange plate, the side wall of the hydraulic cylinder 5 is fixedly connected with a hydraulic integrated valve 9, the hydraulic integrated valve 9 comprises a shell 10, a reversing rocker 11, a speed regulating knob 12, an electromagnetic control switch 13 and a feed rocker 14, the reversing rocker 11 and the electromagnetic control switch 13 are fixedly arranged on the side wall of the shell 10, the switch speed regulating knob 12 is fixedly arranged on the front wall, the bottom of the hydraulic integrated valve 9 is fixedly communicated with an oil inlet pipeline 15 and an oil outlet pipeline 16, and the top of the tailstock 3 is fixedly provided with a displacement sensor 17 and a display 18.

Wherein, a main oil way and two auxiliary oil ways are fixedly arranged in the hydraulic integrated valve 9, the electromagnetic control switch 13 is an electromagnetic valve, the electromagnetic control switch 13 is arranged on the main oil way, and the oil inlet pipeline 15 is communicated with the main oil way. The reversing rocker 11 consists of a rocker and a reversing valve, the reversing valve is installed on the main oil path, and the reversing valve is installed behind the electromagnetic control switch 13. The speed-regulating knob 12 is composed of a knob and a flow control valve, and the flow control valve is installed on one of the auxiliary oil paths. The feed rocker 14 consists of a rocker and a fixed-value control valve, which is mounted on the other secondary oil circuit. The tip shaft 1 is fixedly provided with a mounting rack 19 at the end part, and the side wall of the mounting rack 19 is fixedly provided with a moving end of the displacement sensor 17.

One specific application of the embodiment of the invention is as follows: when holes of shaft parts need to be machined, the center 2 at the center shaft 1 is replaced by a cutter according to a traditional center replacing method, then an electromagnetic control switch 13 is switched on, a main oil path channel is opened, an oil inlet channel 15 is communicated with a main oil path, then a rocker of a reversing rocker 11 is rotated leftwards, a hydraulic rod 6 of a hydraulic cylinder 5 extends forwards, a rotary screw 7 is pushed to drive the center shaft 1 to move forwards, and automatic feeding is achieved. When the center shaft 1 is withdrawn backwards, the reversing rocker 11 is rotated rightwards, so that the hydraulic rod 6 is withdrawn, the rotary screw rod 7 and the center shaft 1 are driven to move backwards, the withdrawal of the center shaft 1 is realized, and the reversing is simple and rapid.

In the feeding process, the speed regulating knob 12 is rotated in the forward direction, and the oil inlet flow is increased through the flow control valve, so that the extension speed of the hydraulic rod 6 is increased, the center shaft 1 is driven to move forwards quickly, and the feeding speed of the center 2 is increased. The speed regulating knob 12 is rotated reversely, the oil inlet flow is reduced through the flow control valve, so that the extension speed of the hydraulic rod 6 is reduced, the center shaft 1 is driven to move forwards at a low speed, the feeding speed of the center 2 is reduced, the feeding speed is adjusted manually, and the speed regulating knob is flexible to operate and quick to adjust.

The feeding rocker 14 is rotated to a fixed position in the forward direction, and the oil inlet flow is controlled to be a specific value through a fixed value control valve in the hydraulic integrated valve 9, so that the hydraulic rod 6 obtains a stable moving speed, the tip shaft 1 is driven to obtain a stable uniform feeding speed, and automatic uniform feeding is realized.

Displacement sensor 17 is stay cord displacement sensor, through fixing the removal end of stay cord on mounting bracket 19, the stay cord extension is driven when apical axis 1 moves forward, displacement sensor 17 shows the displacement distance of apical axis 1 through display 18 in real time, can set for the displacement distance through displacement sensor 17 in advance, when arriving the displacement distance of setting for, make solenoid electric control switch 13 disconnection through external control circuit, thereby cut off the main oil way, stop feeding of hydraulic stem 6, and then realize stopping feeding of apical axis 1, can realize the ration and feed, and the precision is high, need not real-time manual measurement, and the efficiency is improved.

Under the condition of not using the hydraulic cylinder 5, the traditional rotating handle 8 is reserved, the hydraulic rod 6 and the rotating lead screw 7 are driven to rotate, the feeding of the center shaft 1 is realized by rotating the threaded connection between the lead screw 7 and the inner wall of the center shaft 1, the energy is saved, the operation is flexible, and the application range is wide.

According to the invention, the electromagnetic control switch 13 is switched on to open the main oil path channel, so that the oil inlet channel 15 is communicated with the main oil path, and then the rocker of the reversing rocker 11 is rotated leftwards or rightwards to drive the rotary screw 7 and the center shaft 1 to move forwards or backwards, so that automatic feeding or automatic withdrawing is realized, and the reversing is simple and rapid. The speed regulating knob 12 is rotated forwards or backwards, and the oil inlet flow is increased or reduced through the flow control valve, so that the extension speed of the hydraulic rod 6 is increased or reduced, the center shaft 1 is driven to move forwards quickly or slowly, the feeding speed of the center 2 is adjustable, the feeding speed is adjusted manually, and the operation is flexible and the adjustment is quick. The feeding rocker 14 is rotated to a fixed position in the forward direction, and the oil inlet flow is controlled to be a specific value through a fixed value control valve in the hydraulic integrated valve 9, so that the hydraulic rod 6 obtains a stable moving speed, the tip shaft 1 is driven to obtain a stable uniform feeding speed, and automatic uniform feeding is realized. Through fixing the removal end with the stay cord on mounting bracket 19, displacement sensor 17 shows the displacement distance of apical axis 1 through display 18 in real time, sets for displacement distance cooperation electromagnetic control switch 13 through displacement sensor 17, can realize the ration and feed, and the precision is high, need not real-time manual work and measures, has improved efficiency, need not to set for complicated procedure, and is with low costs. The tailstock solves the problems that the tailstock is fixed on a lathe bed, does not have an automatic feeding function, cannot finish workpieces with deep holes which can be processed on a common lathe by one-time clamping, influences the processing precision, has low efficiency, is automatically controlled by a sensor, is high in price, is not suitable for small-batch workpieces, and increases the cost.

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.