CN222944968U - A mid-drive CNC double-head lathe - Google Patents

Abstract

The utility model discloses a medium-drive numerical control double-headed lathe, and belongs to lathe assembly technology. The lathe comprises a lathe base, wherein the lathe base is provided with a sliding table, clamping seats for clamping bars are symmetrically arranged at two ends of the sliding table, a floating supporting device for feeding assistance is further arranged on the sliding table, the lathe base controls movement of the clamping seats through a screw rod module, the screw rod module comprises a sliding table and a sliding plate, the sliding plate moves on the sliding table and is provided with a servo motor for control, the sliding plate is provided with the clamping seats, a tool rest, a push rod assembly and a tailstock, the tailstock comprises a dovetail sliding seat and a dovetail sliding table, the dovetail sliding seat is fixed on the sliding plate, the dovetail sliding table is controlled to move on the dovetail sliding seat through a second cylinder, the push rod assembly is arranged based on the dovetail sliding table, the push rod assembly comprises a first cylinder, and the first cylinder controls telescopic movement of the push rod and is used for limiting and fixing the end part of the bars located in the clamping seats.

Description

Well drive numerical control double-end lathe

Technical Field

The utility model belongs to a machining machine tool, and particularly relates to a medium-drive numerical control double-end lathe.

Background

The lathe is a machine tool for turning a rotating workpiece with a turning tool. The lathe can also be used for corresponding machining by using a drill bit, a reamer, a tap, a die, a knurling tool and the like. The double-end lathe is different from the traditional lathe in that product turning can be simultaneously carried out on two sides of a workpiece.

In the process of machining a workpiece by using a lathe, the workpiece is usually placed at the middle driving part, and the middle driving part clamps the workpiece and drives the workpiece to rotate, so that the double-head lathe can machine the workpiece.

When the intermediate drive drives the workpiece to rotate at a high speed, the end part of the workpiece may shake in the rotating process, so that the precision of the machining tool on the workpiece machining can be reduced when the machining tool contacts with the two ends of the workpiece, and poor machining of the end part of the workpiece may be caused.

Disclosure of utility model

The utility model aims to provide a medium-drive numerical control double-end lathe which can improve stability compared with the prior art, including support in the long bar machining process.

The technical scheme is that the medium-drive numerical control double-end lathe comprises a lathe base, wherein the lathe base is provided with a sliding table, clamping seats for clamping bars are symmetrically arranged at two ends of the sliding table, and a floating supporting device for feeding assistance is further arranged on the sliding table;

The machine tool base controls the movement of the clamping seat through the screw rod module, the screw rod module on the machine tool base comprises a sliding table and a sliding plate, the sliding plate moves on the sliding table, and a servo motor is arranged for control;

The sliding plate is provided with a clamping seat, a tool rest, a push rod assembly and a tailstock, the tailstock comprises a dovetail sliding seat and a dovetail sliding table, the dovetail sliding seat is fixed on the sliding plate, and the second cylinder is used for controlling the dovetail sliding table to move on the dovetail sliding seat;

the push rod assembly comprises a first cylinder, wherein the first cylinder controls telescopic movement of the push rod and is used for limiting and fixing the end part of the bar positioned in the clamping seat.

In the lathe mechanism, the screw rod module comprises a sliding rail and a sliding block, the sliding block is driven by a screw rod, and the screw rod is driven by a motor to rotate.

Further, the push rod assembly also comprises a screw rod module, a sliding cover plate is fixed through a sliding block positioned in the screw rod module, and a push rod and a first air cylinder are arranged on the sliding cover plate.

The floating support device comprises a sliding seat, wherein the sliding seat can move along a sliding table, a mounting frame is arranged on the sliding seat, a driving mechanism is arranged in the middle of the mounting frame and used for controlling lifting of a guide wheel frame, a guide wheel is arranged on the guide wheel frame, and a guide pillar is arranged between the driving mechanism and the guide wheel frame.

Furthermore, the guide wheel comprises a V-shaped or U-shaped guide wheel, and a ball is arranged on the surface, which is contacted with the surface of the bar, of the guide wheel, so that the bar can horizontally move on the floating support device or rotate under the action of the clamping seat.

The guide post is fixed at only one end, and the guide post is fixed with the guide wheel frame or the mounting frame.

Compared with the prior art, the lathe provided by the utility model has the beneficial effects that the double clamping seats are adopted, and the clamping seats, the tool rest, the push rod assembly and the tailstock are integrally assembled. Because the utility model adopts the double clamping seats and adopts the middle drive, the assembly precision and the linear type requirements are very high, otherwise, the clamping rotation of the two clamping seats to the bar is easy to generate distortion or the processing precision is not high, and the utility model adopts the modularized integrated installation and then the assembly on the machine tool base is convenient to calibrate. Secondly, the existing floating support frame is basically used for auxiliary feeding, the clamping seat is fixed and then descends and retracts, but certain deformation or distortion can exist for part of long-axis bar materials (metal or timber with soft materials) under the condition of high-speed rotation, particularly the middle part, the floating support frame can be used for auxiliary support under the condition, and the balls distributed on the surface of the guide wheel can realize bearing without influencing transverse or axial rotation.

Drawings

FIG. 1 is a schematic view of the overall structure of the lathe of the present utility model;

FIG. 2 is a schematic view of a sliding structure of the screw module;

FIG. 3 is a schematic view of the structure of an end of the lathe according to the present utility model;

FIG. 4 is a schematic view of the structure of the floating support;

FIG. 5 is a schematic structural view of a push rod assembly;

fig. 6 is a schematic diagram of the installation structure of the push rod assembly and the screw rod module.

Detailed Description

For a detailed description of the disclosed technical solutions, reference is made to the following description taken in conjunction with the accompanying drawings.

Firstly, as shown in fig. 1-6, the middle-drive numerically controlled double-end lathe provided by the utility model comprises a machine tool base 1, a sliding table 101 is arranged on the machine tool base 1, the sliding table 101 is used for installing a sliding plate 102, the sliding plate 102 comprises left and right ends arranged on the machine tool base 1, a clamping seat 2, a tool rest 4, a push rod assembly 5 and a tailstock 6 are arranged on the sliding plate 102 in a modularized integrated manner, and the specific arrangement of the mechanism is as follows.

The utility model relates to the application of a screw rod module, the structure of which can be combined with that shown in fig. 2, the screw rod module mainly comprises a slide rail 100, a slide block 200 and a motor 300 for driving the slide block to move, and the motor 300 controls the screw rod to rotate, so that the slide block 200 moves. In some other embodiments, the motor 300 may be disposed on the slider 200, where the slider 200 is connected to a bearing, the inner ring of the bearing is provided with threads and a gear located outside, and the motor 300 is meshed with the teeth on the outer ring of the bearing through the gear, and then walks under the condition of rotation.

Fig. 3 shows a side structure of the lathe according to the present utility model, which can be symmetrically arranged, and is provided with a slide plate 102 based on a slide table 101 on a machine base 1, wherein the slide plate 102 can slide through a slide block fixed on two sets of slide rails, and the stability of the slide plate is improved, and the slide plate 102 and the slide block connected and fixed are controlled by a servo motor at the end part. On slide 102, set up in tailstock 6, tailstock 6 is also a set of slidable mechanism, including fixing the forked tail slide that sets up on slide 102, be provided with forked tail slip table 601 based on the forked tail slide, through the second cylinder 602 drive that the tip set up, specifically the rotation of second cylinder 602 drives inside lead screw and rotates, and the lead screw rotates then controls the forked tail slip table 601 that sets up on it and removes, and the rotation accessible bearing frame and bearing of lead screw are fixed on the base at slide position, this technical means who knows that this is the person skilled in the art should. The present utility model employs a dovetail mechanism to enhance stability during longitudinal movement of the push rod assembly 5 (with the direction of movement of the dovetail stage 601 on the tailstock 6 being transverse).

Further, referring to fig. 5 and fig. 6, fig. 6 shows a schematic structural diagram of the push rod assembly 5 on the dovetail sliding table 601, which can be understood as a stacked arrangement, where the push rod assembly 5 is used for abutting a bar in the holder 2, the push rod assembly 5 includes a push rod barrel and a push rod 503 located in the push rod barrel, the push rod barrel is fixed on the screw rod module 504 and connected and fixed with the slidable sliding cover plate 501, and similarly, the push rod assembly 5 includes a driving mechanism, where the driving mechanism may be an air cylinder, an electric cylinder or an oil cylinder. The pushrod 503 is provided with a first cylinder 502 to control its expansion and contraction. In addition, the end of the push rod 503 is provided with a turntable or a bearing, the turntable or the swivel is directly abutted against the end of the workpiece, and the head can be rotatably mounted through the bearing.

For the machine tool base 1, the clamping seats 2 are symmetrically arranged at two ends of the machine tool base 1, the two ends can move in the mode, the machine tool base can be fixed after being debugged, and the machine tool base can be matched with the straight line alignment and collimation calibration work of the fixed end through the movement of the other end.

On the other hand, the utility model is also provided with a floating support device 3 on the sliding table 101, comprising a sliding seat 301, wherein the sliding seat 301 can move along the sliding table 101, a mounting frame 302 is arranged on the sliding seat 301, a driving mechanism 306 is arranged in the middle of the mounting frame 302, the driving mechanism 306 is used for controlling the lifting of the guide wheel frame 303, a guide wheel 304 is arranged on the guide wheel frame 303, a guide pillar 305 is arranged between the driving mechanism 306 and the guide wheel frame 303, and the driving mechanism comprises electric, pneumatic or hydraulic equipment. For the above-mentioned guide wheel 304, it can be seen from fig. 1 and fig. 4 that the guide wheel 304 is an arc surface (which can be understood as a U-shaped or V-shaped state) formed by two opposite conical surfaces, and the guide wheel 304 is fixed on the guide wheel frame 303 through a bearing at an end portion, so that the guide wheel 304 can move in a horizontal direction when supporting a cylindrical workpiece or a plate bar, so that two ends of the bar can penetrate into the clamping seat 2 one by one to be fixed, and the middle portion of the clamping seat 2 is a hydraulic chuck to realize clamping of the workpiece. The existing left and right floating support frames generally descend and are recycled after the workpiece is fixed, which belongs to the conventional processing requirement, but for the situations of soft metal pieces or timber and the like, a long-axis (ultra-long) workpiece is easy to bend under the action of rear gravity in the preliminary processing process, so that the floating support device 3 provided by the utility model can support the situation, and is realized by embedding a plurality of balls on the guide wheels 304, thereby realizing the rotary support of the long-axis workpiece in the initial processing process.

The lathe provided by the utility model has the advantages that the two ends of the lathe base 1 are provided with the same symmetrical structures, the symmetrical structures can be both in sliding arrangement, the symmetrical structures can be fixed after the setting is finished, and then the movable end is adjusted to finish the processing of workpieces (bars, cylinders and the like).

Claims (6)

1. The medium-drive numerical control double-end lathe comprises a lathe base (1) and is characterized in that the lathe base (1) is provided with a sliding table (101), clamping bases (2) for clamping bars are symmetrically arranged at two ends of the sliding table (101), and a floating supporting device (3) for feeding assistance is further arranged on the sliding table (101);

The machine tool base (1) controls the movement of the clamping seat (2) through a screw rod module, the screw rod module on the machine tool base (1) comprises a sliding table (101) and a sliding plate (102), the sliding plate (102) moves on the sliding table (101), and a servo motor is arranged for control;

Based on the sliding plate (102), a clamping seat (2), a tool rest (4), a push rod assembly (5) and a tailstock (6) are arranged, the tailstock (6) comprises a dovetail sliding seat and a dovetail sliding table (601), the dovetail sliding seat is fixed on the sliding plate (102), and the movement of the dovetail sliding table (601) on the dovetail sliding seat is controlled by a second cylinder (602);

Push rod assembly (5) are arranged on the basis of dovetail sliding table (601), push rod assembly (5) comprise first cylinder (502), and first cylinder (502) control push rod (503) telescopic movement is used for limiting and fixing bar ends located in clamping seat (2).

2. The medium-drive numerical control double-end lathe according to claim 1, wherein the screw rod module comprises a sliding rail (100) and a sliding block (200), the sliding block (200) is driven by a screw rod, and the screw rod is driven by a motor (300) to rotate.

3. The medium-drive numerically controlled double-headed lathe according to claim 1, wherein the push rod assembly (5) also comprises a screw rod module (504), a sliding cover plate (501) is fixed by a sliding block positioned in the screw rod module (504), and the push rod (503) and the first cylinder (502) are arranged on the sliding cover plate (501).

4. The medium-drive numerical control double-end lathe according to claim 1, wherein the floating support device (3) comprises a sliding seat (301), the sliding seat (301) can move along the sliding table (101), a mounting frame (302) is arranged on the sliding seat (301), a driving mechanism (306) is arranged in the middle of the mounting frame (302), the driving mechanism (306) is used for controlling lifting of a guide wheel frame (303), a guide wheel (304) is arranged on the guide wheel frame (303), and a guide pillar (305) is arranged between the driving mechanism (306) and the guide wheel frame (303).

5. The medium-drive numerically controlled double-headed lathe according to claim 4, wherein the guide wheel (304) comprises a V-shaped or U-shaped guide wheel, and the surface of the guide wheel, which is in contact with the surface of the bar, is provided with balls for realizing horizontal movement of the bar on the floating support (3) or rotation under the action of the clamping seat.

6. The medium drive numerically controlled double-ended lathe of claim 4, wherein said guide post (305) is fixed at only one end, said guide post (305) comprising a fixed with a guide frame (303) or mounting bracket (302).