CN202667731U - Drilling secondary work feeder of maglev rail machining machine - Google Patents

Abstract

The utility model discloses a drilling secondary work feeder of a maglev rail machining machine. The drilling secondary work feeder comprises a transverse moving frame, a lifting mechanism connected to the transverse moving frame, a lifting body connected with the lifting mechanism and a lifting drive source in transmission connection with the lifting mechanism. A drilling work feeder is fixedly connected with the lifting body and is in transmission connection with a cutting motor. The lifting mechanism comprises a screw rod and a screw rod nut, and the screw rod nut is connected to the screw rod in screw mode. The drilling secondary work feeder of the maglev rail machining machine not only can achieve drilling work consecutively and smoothly, but also is simple in operation and convenient to use.

Description

Drilling secondary feed device for magnetic levitation track processing machine

technical field

The utility model relates to a magnetic levitation track processing machine tool, in particular to a drilling feeding device used in the machine tool. the

Background technique

With the development of science and technology, the maglev train using clean magnetic energy has been highly valued by the country and has a tendency to be vigorously promoted due to its high-speed, comfortable, economical and environmentally friendly superior performance. The market prospect is very broad. In the maglev train system, the track matched with the train is an indispensable part. In order to realize the drilling of mounting holes and other holes on the vehicle rail, a drilling feed device arranged on the magnetic levitation track processing machine tool is indispensable. The drilling feeding device on a general-purpose machine tool mainly includes a traversing frame, a screw connected to the traversing frame, and a drilling mechanism with independent power that is fixed on the lifting body and connected with the screw nut. Driven by the screw, the screw nut can be fed axially along the axis of the screw, and the drilling of the hole is realized by the drill installed on the main shaft of the drilling mechanism. Though the drilling feeding device on this general machine tool can realize the drilling of the hole on the common workpiece, if the drilling feeding device on the general machine tool is directly used on the magnetic levitation track processing machine tool, because the single magnetic levitation car The shape of the rail is narrow and long (the actual length of the rail is more than ten meters, and the width is only about 30 centimeters). Therefore, the fixture should be used for multi-point clamping of the track on the working platform of the magnetic levitation track processing machine tool. And the jig itself has a certain height. When drilling holes near the jig during work, the jig often collides with the drilling feed device and interferes with the drilling and cutting feed. This will not only cause damage to the lead screw and the lead screw nut, but also cause the drill bit to not touch the surface of the rail and cannot form the drilling process on the rail, or the phenomenon that the drill bit cannot penetrate the rail. Not smooth defect. And the way to solve the above problems in the production process can only be to manually move the clamps continuously, so that the clamps avoid the drilling feed device, which has the defects of complicated operation and inconvenient use. Obviously, if the drilling feeding device on this general-purpose machine tool is not improved, it is difficult to be applied to the magnetic levitation track processing machine tool. the

Utility model content

Aiming at the deficiencies of the existing technology, the technical problem to be solved by the utility model is to provide a secondary feeding device for drilling of a magnetic levitation track processing machine, which can not only realize continuous and smooth drilling work, but also is easy to operate and easy to use. the

In order to solve the above-mentioned technical problems, the secondary feeding device for the drilling of the magnetic levitation track processing machine of the utility model includes a traversing frame, a lifting mechanism connected to the traversing frame, a lifting body connected with the lifting mechanism and a transmission connection with the lifting mechanism. The lifting drive source is fixedly connected to the drilling feeding device on the lifting body, and the drilling feeding device is connected to the cutting motor through phase transmission. the

After the above structure is adopted, since the lifting mechanism is connected to the traverse frame, the lifting body is connected to the lifting mechanism, and the lifting drive source is connected to the lifting mechanism by phase transmission, the lifting mechanism can be driven by the lifting driving source, thereby Drive the lifting body to make a certain stroke of lifting movement, which realizes the first stage feeding in the drilling work. The drilling feeding device is fixedly connected to the lifting body, so that the drilling feeding device can be used together with the lifting body for the first stage feeding in the drilling work, and the working feed of the drilling feeding device itself constitutes Secondary feed throughout the drilling job. During the drilling process, the drilling feeding device can be moved to the top of the fixture through the first stage feed to ensure a certain distance between the drilling feeding device and the fixture, and then connected to the drilling feeding device through phase transmission The drilling driving device (that is, the cutting motor) provides the drilling power, and the working feeding mechanism on the drilling feeding device completes the working feeding of the drilling, that is, the secondary feeding. In this way, there will be no collision between the drilling feed device and the fixture during the entire drilling process, which effectively avoids the defects of easy production blockage and unsmooth work that existed in the original single-stage feed, and not only has the ability to realize continuous and smooth drilling. Drilling work, and no need to manually move the fixture, has the advantages of simple operation and convenient use. the

A preferred embodiment of the present utility model is that the lifting mechanism includes a lead screw and a lead screw nut, and the lead screw nut is screw-connected to the lead screw. Using the lead screw and the lead screw nut as the lifting and feeding transmission mechanism has the advantages of simple structure and easy implementation. the

Description of drawings

The secondary feeding device for drilling of the magnetic levitation track processing machine of the utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. the

Fig. 1 is a schematic diagram of the working structure of a specific embodiment of the drilling secondary feed device of the magnetic levitation track processing machine of the present invention. the

In the figure, 1-first-stage driving wheel, 2-lifting drive source, 3-transmission belt, 4-lead screw, 5-driven wheel, 6-gland, 7-rotating upper shaft seat, 8-lead screw nut, 9- Lifting body, 10-cutting motor, 11-vertical slider, 12-cutting driving pulley, 13-cutting motor base, 14-cutting transmission belt, 15-hydraulic power head, 16-power head seat, 17-drill bit, 18 -Rotate the lower shaft seat, 19-vertical guide rail, 20-horizontal guide rail, 21-horizontal slide block, 22-transverse frame, 23-body horizontal frame. the

Detailed ways

In the secondary feeding device for drilling of the magnetic levitation track processing machine shown in the figure, the traverse frame 22 is slidably connected to the horizontal guide rail 20 and the horizontal slider 21 on the body horizontal frame 23, and the top inner side of the traverse frame 22 The lifting driving source 2 is installed, and the lifting driving source 2 is a servo motor, and the first-stage driving wheel 1 is fixedly installed at the output shaft end of the servo motor, and the inner hole provided on the top surface of the traversing frame 22 is installed. Rotate the upper shaft seat 7, a pair of angular contact ball bearings are installed in the rotating upper shaft seat 7, and a gland 6 is arranged on the rotating upper shaft seat 7, and the gland 6 acts as an axial limit for the angular contact ball bearings The upper journal of the lead screw 4 passes through the inner hole of the angular contact ball bearing and the gland 6 and extends outward, and is rotatably connected to the rotating upper shaft seat 7 through the lock nut, where the lock nut limits The axial movement of the lead screw 4 is fixedly connected with the driven wheel 5 on the journal at the upper extension of the lead screw 4, and the driven wheel 5 is connected with the driving wheel 1 of the first stage through the transmission belt 3. The driven wheel 5, the first stage The driving wheel 1 is a synchronous pulley, and the above-mentioned transmission belt 3 is a synchronous belt corresponding to the synchronous belt pulley. The transmission mode using the synchronous belt has the advantages of large transmission torque, stable transmission and low noise. The journal of the lower part of the screw 4 passes through the bearing inner hole arranged in the lower rotating shaft seat 18, which is arranged on the same axis as the upper rotating shaft seat 7 and is fixedly installed on the vertical direction side of the traversing frame 22. Two vertical guide rails 19 are installed in parallel on the vertical side of the traverse frame 22 , and the two vertical guide rails 19 are arranged symmetrically with respect to the leading screw 4 . A lead screw nut 8 is fixedly installed on the top surface of the lifting body 9, and the lead screw nut 8 is spirally connected with the lead screw 4 through a spiral groove inside it. Two rows of vertical sliders 11 are arranged on the side of the vertical direction of the lifting body 9, and the number of each row of vertical sliders 11 is two. Paired together, under the driving of the leading screw 4, the lift of a certain stroke can be obtained through the action of the leading screw nut 8 on the lifting body 9, that is, the first stage feed to the drilling operation is realized. During work, the lifting body 9 can be moved and kept above the fixture by the first-stage feed, so as to ensure that the lifting body 9 does not collide with the fixture. The lower part of the side surface on the other side in the vertical direction of the lifting body 9 is fixedly connected to the drilling feed device through the power head seat 16. The drilling feed device is a hydraulic power head 15. Tenon sleeve connection, the outer fixed sleeve of the main shaft is fixedly connected with the transmission pulley, the drill bit 18 is set in the inner hole of the inner main shaft shaft end, and the inner sliding sleeve is set in the hydraulic system of the hydraulic power head 15 itself. Under the action, it can make a feed slip of a certain stroke, realizing the secondary feed during drilling. The first-stage feed can be continued through the two-stage feed, which ensures the continuity and smoothness of machining each hole on the rail. The cutting motor 10 is adjustably installed on the upper side of the other side in the vertical direction of the lifting body 9 through the cutting motor seat 13. The cutting motor 10 is a frequency conversion motor, and the frequency conversion motor has constant output cutting torque and stepless adjustable cutting speed. advantage, the cutting drive pulley 12 is fixedly connected to the output shaft end of the frequency conversion motor, and the cutting drive pulley 12 is connected to the hydraulic power head 15 through the cutting drive belt 14. The driving pulley set on the head 15 is a synchronous belt pulley, and the corresponding cutting transmission belt 14 is a synchronous belt. The mode of using the synchronous belt for transmission has the advantages of large transmission torque, stable transmission and low noise. the

During operation, by controlling the lifting drive source 2, the lifting body 9 is moved to the top of the fixture to ensure a certain distance between the lifting body 9 and the fixture, thus completing the first-stage feed, and then controlling the speed of the variable frequency motor to make the hydraulic pressure The power head 15 obtains the required cutting speed, and controls the external oil circuit connected to the hydraulic control system inside the hydraulic power head 15 to obtain the working feed when the drill bit 17 is drilling. The whole operation process is simple and convenient, continuous and smooth. the

The above are just some preferred implementations of the secondary feeding device for drilling of the processing machine of the present invention, but are not limited thereto. Without violating the basic principles of the present invention, some transformations and improvements can also be made. For example, the selection of the lifting drive source is not limited to servo motors, but also stepping motors; the selection of cutting motors is not limited to frequency conversion motors, but also servo motors, and so on. As long as any modification of similar mechanism is made on the basis of the utility model, it is considered to fall into the protection scope of the utility model. the

Claims (5)

1. magnetic-levitation processing machine boring secondary feed arrangement, comprise transversely-moving rack (22), be connected in the elevating mechanism on the transversely-moving rack (22), the lifting body that links to each other with elevating mechanism (9) and the lifting drive source (2) that is in transmission connection mutually with elevating mechanism, it is characterized in that: at described lifting body (9) drilling feed device that is being fixedly connected, cutting blade motor (10) mutually is being in transmission connection on this drilling feed device.

2. magnetic-levitation processing machine according to claim 1 boring secondary feed arrangement, it is characterized in that: described elevating mechanism comprises leading screw (4) and feed screw nut (8), and feed screw nut (8) phase spiral is connected on the leading screw (4).

3. magnetic-levitation processing machine according to claim 1 boring secondary feed arrangement, it is characterized in that: described lifting drive source (2) is servomotor.

4. magnetic-levitation processing machine according to claim 1 boring secondary feed arrangement, it is characterized in that: described drilling feed device is hydraulic power head (15).

5. magnetic-levitation processing machine according to claim 1 boring secondary feed arrangement, it is characterized in that: described cutting blade motor (10) is variable-frequency motor.

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