阅读说明：本技术 双驱双工位伺服拉床 (Double-drive double-station servo broaching machine ) 是由 马骥 于 2020-08-24 设计创作，主要内容包括：本发明公开了一种双驱双工位伺服拉床,包括主机部分、提刀送刀机构和工作台移料伺服机构,在所述主机部分上安装有提刀送刀机构和工作台移料伺服机构。本发明实现了双伺服同步运行和精确的直线定位,增加了设备运行的安全性,机床在整个工作过程中基本处于无震动状态,充分保证了拉刀寿命和零件的表面粗糙度,有效提高了拉床使用寿命,能实现滑台前后移动速度的自由调节,通用性能好,通过配置机械手,能实现自动化连续生产,在提高生产效率的同时减轻了操作者劳动强度。(The invention discloses a double-drive double-station servo broaching machine which comprises a main machine part, a tool lifting and feeding mechanism and a workbench material moving servo mechanism, wherein the tool lifting and feeding mechanism and the workbench material moving servo mechanism are arranged on the main machine part. The invention realizes double-servo synchronous operation and accurate linear positioning, increases the safety of equipment operation, ensures the service life of the broach and the surface roughness of parts by ensuring that the machine tool is basically in a vibration-free state in the whole working process, effectively improves the service life of the broaching machine, can realize the free adjustment of the forward and backward movement speed of the sliding table, has good universality, can realize automatic continuous production by configuring the manipulator, and reduces the labor intensity of operators while improving the production efficiency.)

1. The utility model provides a two servo broaching machines of duplex position that drive which characterized in that: the automatic feeding device comprises a main machine part, a knife lifting and feeding mechanism and a workbench material moving servo mechanism, wherein the knife lifting and feeding mechanism and the workbench material moving servo mechanism are arranged on the main machine part;

the main machine part comprises a water tank (10) and a main screw rod (3), and a right upright post (7), a left upright post (11), a lower clamping seat part (9), a chip removal machine (19), a tool apron (21) and a large cover (22) are fixed on the water tank (10);

the inner side surfaces of the right upright post (7) and the left upright post (11) are both fixed with a main line rail (24), the upper ends of the right upright post and the left upright post are both provided with a speed reducer (2), a first servo motor (1) and a top cover (23), the upper end of a main lead screw (3) is connected with the speed reducer (2) and the first servo motor (1), and the lower end of the main lead screw is arranged in a lead screw tail seat (8);

sliding plates (4) are symmetrically arranged on the two main screw rods (3) through nuts (5), a workbench component (6) is fixedly connected between the two sliding plates (4), and the workbench component (6) moves up and down along the main line rail (24) along with the sliding plates (4);

the cutter lifting and feeding mechanism comprises an upper clamping part (12), a motor base (15), a second servo motor (16) and a T-shaped lead screw (17), the motor base (15) is installed on a cutter base (21), the second servo motor (16) is fixed on the motor base (15), a synchronous pulley A (14) is installed at one end of the second servo motor (16), a synchronous pulley B (18) is installed on the T-shaped lead screw (17), the synchronous pulley A (14) is connected with the synchronous pulley B (18) through a synchronous belt, and the upper clamping part (12) is installed on the T-shaped lead screw (17) and is connected with an upper clamping linear rail (13);

the workbench material moving servo mechanism comprises a bearing fixing seat (100), a gear box (101), a workbench (110) and a material moving lead screw (106), wherein the gear box (101) is fixed on the workbench (110), a third servo motor (105), a synchronous pulley C (102), a synchronous belt (113) and a synchronous pulley D (103) are arranged in the gearbox (101), one end of the material moving screw rod (106) is arranged in the bearing fixing seat (100) through a bearing (104), the other end of the material moving screw rod (106) is provided with a synchronous belt wheel C (102), the middle part of the material moving screw rod is connected with a nut seat (111) through a nut (107), a sliding table (112) is arranged on the working table (110), the lower end surface of the sliding table (112) is fixedly connected with a nut seat (111), the sliding table (112) moves back and forth on the workbench (110) along the material moving lead screw (106).

2. The double-drive double-station servo broaching machine according to claim 1, characterized in that: the nut (5) on the main screw (3) is provided with a centralized lubricating system.

3. The double-drive double-station servo broaching machine according to claim 1, characterized in that: and a steel belt protective sleeve is arranged outside the main lead screw (3).

4. The double-drive double-station servo broaching machine according to claim 1, characterized in that: and a lower cutter grabbing device is arranged on the lower clamping seat part (9).

5. The double-drive double-station servo broaching machine according to claim 1, characterized in that: an independent electric box (20) is arranged on the side surface of the tool apron (21).

6. The double-drive double-station servo broaching machine according to claim 5, wherein: the independent electrical box (20) is provided with an air conditioner.

The technical field is as follows:

the invention relates to the field of machining equipment, in particular to a double-drive double-station servo broaching machine.

Background art:

the broaching machine is a machine tool for processing through holes, planes and formed surfaces of workpieces by using a broaching tool as a cutter. The broaching can obtain higher dimensional accuracy and smaller surface roughness, has high productivity and is suitable for mass production.

With the development of automobile, military industry, ships and die manufacturing industry, the market demand of large-scale broaching machines begins to increase, the large-scale broaching machines are usually driven by hydraulic pressure at present, and are supported by complex hydraulic systems, so that the large-scale broaching machines have the advantages of large floor area, high energy consumption, oil pollution, inflexible operation and high operation noise.

The invention content is as follows:

in order to overcome the defects of the prior art, the double-drive double-station servo broaching machine is flexible and convenient to operate, stable and reliable in performance, has a self-locking function, reduces noise and saves space.

The purpose of the invention is realized by the following technical scheme: a double-drive double-station servo broaching machine comprises a main machine part, a cutter lifting and feeding mechanism and a workbench material moving servo mechanism, wherein the main machine part is provided with the cutter lifting and feeding mechanism and the workbench material moving servo mechanism;

the main machine part comprises a water tank and a main screw rod, and a right upright post, a left upright post, a lower clamping seat part, a chip removal machine, a tool apron and a large cover are fixed on the water tank;

the inner side surfaces of the right upright post and the left upright post are both fixed with main linear rails, the upper ends of the right upright post and the left upright post are both provided with a speed reducer, a first servo motor and a top cover, the upper end of a main screw rod is connected with the speed reducer and the first servo motor, the lower end of the main screw rod is arranged in a screw rod tail seat, and the right upright post and the left upright post are cast iron upright posts;

sliding plates are symmetrically arranged on the two main screw rods through nuts, a workbench component is fixedly connected between the two sliding plates, and the workbench component moves up and down along the main line rail along with the sliding plates;

the cutter lifting and feeding mechanism comprises an upper clamping part, a motor base, a second servo motor and a T-shaped lead screw, wherein the motor base is arranged on the cutter base, the second servo motor is fixed on the motor base, one end of the second servo motor is provided with a synchronous belt wheel A, the T-shaped lead screw is provided with a synchronous belt wheel B, the synchronous belt wheel A is connected with the synchronous belt wheel B through a synchronous belt, and the upper clamping part is arranged on the T-shaped lead screw and is connected with an upper clamping linear rail;

the workstation moves material servo mechanism includes bearing fixing base, gearbox, workstation and moves the material lead screw, the gearbox is fixed on the workstation be equipped with third servo motor, synchronous pulley C, hold-in range and synchronous pulley D in the gearbox, the one end of moving the material lead screw is passed through the bearing and is installed in the bearing fixing base, the other end of moving the material lead screw is equipped with synchronous pulley C, and the middle part is connected with the nut seat through the nut be equipped with the slip table on the workstation, the lower terminal surface and the nut seat looks fixed connection of slip table, the slip table is along moving the material lead screw back-and-forth movement on the workstation.

The invention is further improved in that: the nut on the main screw is provided with a centralized lubricating system.

The invention is further improved in that: and a steel belt protective sleeve is arranged outside the main screw rod.

The invention is further improved in that: and a lower cutter grabbing device is arranged on the lower clamping seat component. The broach fixing device is used for fixing the broach and fully ensures the stability of the broach in the broaching process.

The invention is further improved in that: and an independent electric box is arranged on the side surface of the tool apron.

The invention is further improved in that: the independent electric box is provided with an air conditioner.

Compared with the prior art, the invention has the following advantages:

1. through the symmetrically arranged double-upright-column double-servo drive, the synchronous operation and the accurate linear positioning of double servos are realized, and the operation safety of equipment is improved;

2. because the machine tool adopts servo motor transmission, the good motor acceleration and deceleration performance can greatly weaken the motion impact of the machine tool, and the bottom of the machine tool is provided with a plurality of shockproof sizing blocks, so that the machine tool is basically in a non-vibration state in the whole working process, and the service life of the broach and the surface roughness of parts are fully ensured;

3. the two independent cast iron stand columns are respectively and symmetrically arranged on the water tank along the broaching center, so that the rigidity of the broaching machine during workpiece broaching is improved, the broaching force is concentrated at the centers of the two main screw rods, the torque generated by the fact that the screw rods deviate from the broaching center is prevented, the abrasion of a linear rail is increased, and the service life of the broaching machine is effectively prolonged.

4. The double-station workbench adopts a material moving servo mechanism, can realize the free adjustment of the front-back movement speed of the sliding table, has good universality, can realize automatic continuous production by configuring a manipulator, and reduces the labor intensity of operators while improving the production efficiency.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a schematic view along the direction L-L;

FIG. 6 is a schematic view from direction I-I;

FIG. 7 is a schematic view of the direction K-K;

FIG. 8 is a schematic view from direction J-J;

FIG. 9 is a schematic structural diagram of a material moving servo mechanism of the workbench;

reference numerals: 1-a first servo motor, 2-a speed reducer, 3-a main screw rod, 4-a sliding plate, 5-a nut, 6-a workbench component, 7-a right upright post, 8-a screw rod tailstock, 9-a lower clamping seat component, 10-a water tank, 11-a left upright post, 12-an upper clamping component, 13-an upper clamping line rail, 14-a synchronous pulley A, 15-a motor base, 16-a second servo motor, 17-T type screw rod, 18-a synchronous pulley B, 19-a chip removal machine, 20-an electrical appliance box, 21-a tool base, 22-a large cover, 23-a top cover, 24-a main line rail, 100-a bearing fixing seat, 101-a gearbox 101, 102-a synchronous pulley C, 103-a synchronous pulley D, 104-a bearing, 105-a third servo motor, 106-material moving screw rod, 107-nut, 108-bearing, 109-bearing support seat, 110-workbench, 111-nut seat, 112-sliding table and 113-synchronous belt.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

Fig. 1 to 9 show a specific embodiment of a double-drive double-station servo broaching machine: the automatic feeding device comprises a main machine part, a knife lifting and feeding mechanism and a workbench material moving servo mechanism, wherein the knife lifting and feeding mechanism and the workbench material moving servo mechanism are arranged on the main machine part;

the main machine part comprises a water tank 10 and a main screw rod 3, and a right upright post 7, a left upright post 11, a lower clamping seat part 9, a chip removal machine 19, a tool apron 21 and a large cover 22 are fixed on the water tank 10;

the inner side surfaces of the right upright post 7 and the left upright post 11 are both fixed with a main linear rail 24, the upper ends of the right upright post and the left upright post are both provided with a speed reducer 2, a first servo motor 1 and a top cover 23, the upper end of a main screw rod 3 is connected with the speed reducer 2 and the first servo motor 1, the lower end of the main screw rod is arranged in a screw rod tail seat 8, and the right upright post 7 and the left upright post 11 are cast iron upright posts;

sliding plates 4 are symmetrically arranged on the two main screw rods 3 through nuts 5, a workbench component 6 is fixedly connected between the two sliding plates 4, and the workbench component 6 moves up and down along a main line rail 24 along with the sliding plates 4;

the knife lifting and feeding mechanism comprises an upper clamping component 12, a motor base 15, a second servo motor 16 and a T-shaped screw rod 17, wherein the motor base 15 is installed on a knife holder 21, the second servo motor 16 is fixed on the motor base 15, one end of the second servo motor 16 is provided with a synchronous belt wheel A14, the T-shaped screw rod 17 is provided with a synchronous belt wheel B18, the synchronous belt wheel A14 is connected with the synchronous belt wheel B18 through a synchronous belt, and the upper clamping component 12 is installed on the T-shaped screw rod 17 and is connected with an upper clamping line rail 13;

the workbench material moving servo mechanism comprises a bearing fixing seat 100, a gearbox 101, a workbench 110 and a material moving lead screw 106, wherein the gearbox 101 is fixed on the workbench 110, a third servo motor 105, a synchronous pulley C102, a synchronous belt 113 and a synchronous pulley D103 are arranged in the gearbox 101, one end of the material moving lead screw 106 is arranged in the bearing fixing seat 100 through a bearing 104, the other end of the material moving lead screw 106 is provided with the synchronous pulley C102, the middle part of the material moving lead screw is connected with a nut seat 111 through a nut 107, the workbench 110 is provided with a sliding table 112, the lower end surface of the sliding table 112 is fixedly connected with the nut seat 111, and the sliding table 112 moves back and forth on the workbench 110 along the material moving lead screw 106; a nut 5 on the main lead screw 3 is provided with a centralized lubricating system; a steel belt protective sleeve is arranged outside the main lead screw 3, so that scrap iron in the machining process is prevented from being adhered to the main lead screw, and the main lead screw 3 of the machine tool is fully ensured to run under a high-precision condition all the time; a lower cutter grabbing device is arranged on the lower clamping seat part 9 and used for fixing a broach, so that the stability of the broach in the broaching process is fully ensured; an independent electric box 20 is arranged on the side surface of the tool apron 21; the separate electrical box 20 is installed with an air conditioner.

The working process of the host machine is as follows:

when a workpiece is broached, the first servo motors 1 on the two stand columns drive the main screw rod 3 to rotate through the speed reducer 2, and the sliding plates 4 and the nuts 5 on the two sides, which are connected with the main screw rod 3, synchronously move upwards along the main linear rail 24 to realize the broaching action;

the machine tool adopts the transmission of a servo motor, is stable in work, can realize stepless speed regulation, has three operation modes of automatic circulation, semi-automatic circulation and adjustment, and can meet the requirements of different broaching modes;

the special oil pump is adopted for cooling and chip flushing, cooling cutting fluid needs to be sprayed in the broaching process and the returning process, the size and the direction of the cutting fluid can be adjusted by the annular spraying device, sufficient cooling is guaranteed, and the chip flushing is thorough. The machine tool is provided with a multi-direction scrap brushing device and a scrap flushing device, and scraps are brushed and flushed for the broach when the workbench returns, so that the cleanliness of the workpiece and the broach is ensured.

The working process of the knife lifting and feeding mechanism is as follows:

when a knife is lifted, the second servo motor 16 obtains a knife lifting signal, the T-shaped screw rod 17 is driven to rotate through the synchronous belt pulley A14, the synchronous belt and the synchronous belt pulley B18, and the upper clamping seat component 12 connected with the T-shaped screw rod 17 moves upwards along the upper clamping line rail 13 to realize the knife lifting action;

when the cutter is fed, the second servo motor 16 drives the upper clamping seat part 12 connected with the T-shaped screw rod 17 to move downwards along the upper clamping line rail 13, so that the cutter feeding action is realized.

The material moving process of the double-station workbench comprises the following steps:

when a workpiece is loaded, the third servo motor 105 obtains a loading signal of the workbench, the synchronous belt pulley D103 and the synchronous belt 113 which are arranged at the head of the motor drive the synchronous belt pulley C102 at the tail end of the material moving screw rod 106 and the material moving screw rod 106 to rotate, the nut 107 which is arranged on the material moving screw rod 106 immediately drives the nut seat 111 and the sliding table 112 to move forwards, and the servo motor can freely adjust the loading moving speed of the sliding table according to the loading and unloading rhythm of the workpiece;

the water tank 10, the left and right upright posts, the tool apron 21 and the like of the machine tool are all made of high-performance inoculated cast iron and are processed by aging treatment for many times, the inherent frequency of the machine tool casting is greatly improved by the high-numerical casting wall thickness, the rigidity is high, the precision retentivity of the machine tool is good, the performance is stable, the machine tool can be used for broaching through holes or splines with various geometric shapes, the production efficiency is high, and the machine tool is suitable for batch production and mass production.

The double-servo synchronous operation and accurate linear positioning are realized by the symmetrically arranged double-upright double-servo drive, so that the operation safety of equipment is improved;

because the machine tool adopts servo motor transmission, the good motor acceleration and deceleration performance can greatly weaken the motion impact of the machine tool, and the bottom of the machine tool is provided with a plurality of shockproof sizing blocks, so that the machine tool is basically in a non-vibration state in the whole working process, and the service life of the broach and the surface roughness of parts are fully ensured;

the two independent cast iron stand columns are respectively and symmetrically arranged on the water tank along the broaching center, so that the rigidity of the broaching machine during workpiece broaching is improved, the broaching force is concentrated at the centers of the two main screw rods, the torque generated by the fact that the screw rods deviate from the broaching center is prevented, the abrasion of a linear rail is increased, and the service life of the broaching machine is effectively prolonged.

The double-station workbench adopts a material moving servo mechanism, can realize the free adjustment of the front-back movement speed of the sliding table, has good universality, can realize automatic continuous production by configuring a manipulator, and reduces the labor intensity of operators while improving the production efficiency.

The applicant further states that the present invention is described in the above embodiments to explain the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it is not meant to imply that the present invention must rely on the above methods and structures to implement the present invention. It should be understood by those skilled in the art that any modifications to the present invention, the implementation of alternative equivalent substitutions and additions of steps, the selection of specific modes, etc., are within the scope and disclosure of the present invention.

The present invention is not limited to the above embodiments, and all the ways of achieving the objects of the present invention by using the structure and the method similar to the present invention are within the protection scope of the present invention.