CN211966651U - A rotary table of a CNC machine tool for cambered worm machining - Google Patents

Abstract

The utility model discloses a rotary worktable of a numerically controlled machine tool for cambered worm processing, comprising a rotary worktable support frame, a driving motor, a transmission worm, a worktable worm gear and a rotary worktable. The rotary table, the worm box is fixed on the back side of the rotary table support frame, the drive motor is installed on the side of the multi-gear box, and the inside of the worm box where the transmission worm is installed, the middle of the rotary table is fixed by bolts with a table rotating shaft , the sleeve is connected to the support seat through the bearing. The rotary table of the CNC machine tool for camber worm machining can complete any angle indexing within the range of 0°-360°, so that the table can be continuously rotated and fed, and can be used as a rotary coordinate axis of the machine tool. It is used to process various arcs or linear coordinate axes to process curved surfaces, and it can also be used as an indexing head to complete the indexing of workpieces.

Description

A rotary table of a CNC machine tool for cambered worm machining

technical field

The utility model relates to the field of camber worm processing, in particular to a rotary table of a numerically controlled machine tool for camber worm processing.

Background technique

A lathe is a machine tool that mainly uses turning tools to turn rotating workpieces. On a lathe, drills, reaming drills, reamers, taps, dies and knurling tools can also be used for corresponding processing. Lathes are also called machine tools, using lathes The workers are called "turners". In the machining industry, lathes are mainly used to process shafts, discs, sleeves and other workpieces with revolving surfaces, mainly cylinders, which are the most widely used in machinery manufacturing and repair factories. The machine tool, when working on the cambered worm, needs to adjust the tool, and needs to use a rotary worktable. The existing rotary worktable cannot be adjusted to effectively ensure the rotation index and rotation angle, which affects the processing efficiency.

Utility model content

The technical problem solved by the utility model is to overcome the problems proposed by the background technology and provide a rotary table of a numerically controlled machine tool for cambered worm processing.

In order to achieve the above purpose, the utility model provides the following technical solutions: a rotary table for a CNC machine tool for cambered worm processing, comprising a rotary table support frame, a drive motor, a transmission worm, a table worm gear and a rotary table, the A rotary table is installed on the upper end of the rotary table support frame, and six sets of tool installation grooves for installing tools are evenly opened on the rotary table. Bearing box, and a multi-gear box is fixed on the right side of the bearing box, a drive motor is installed on the side of the multi-gear box, and a drive gear is installed on the output shaft at the front end of the drive motor, and the drive gear meshes with the driven roller installed at the front end of the transmission worm, and The rear end of the transmission worm is installed inside the bearing box through the bearing, and the inside of the worm box where the transmission worm is installed, and the transmission worm meshes with the worm wheel fixed on the lower end of the rotary table;

A table rotating shaft is fixed in the middle of the rotary table by bolts, and a sleeve is sleeved on the outer side of the table rotating shaft.

Preferably, the rotary table support frame, the worm box and the bearing box are integrated, and the outer side of the bearing box is fixed with a cover plate by bolts, and a detachable cover plate is installed on the side of the middle of the worm box, and the transmission worm is installed at the same time. Lubricating oil is injected into the inner cavity of the multi-gear box.

Preferably, the upper end of the worm box is provided with a support block, and the upper end of the support block is inserted into the groove on the outer side of the lower end of the rotary table, and an L-shaped limit block is installed on the bottom of the worm box outside the support seat, and The lower end of the table worm gear fixed at the lower end of the rotary table is installed inside the limit block.

Preferably, the rear end of the transmission worm is rotatably installed inside the bearing box through a bearing, and the front end of the transmission worm is rotatably installed inside the worm box through a bearing, and the front end of the transmission worm extends out of the worm box and enters the rod body inside the multi-tooth box. Install the driven roller.

Preferably, a sleeve is sleeved on the outer side of the rotating shaft of the worktable, a limit nut is screwed on the rotating shaft of the worktable below the sleeve, and the sleeve is fixed on the rotary table by bolts.

Preferably, the upper end of the support seat is connected to the bottom plate of the rotary table through a vertical bearing, and the side surface of the support seat is connected to the worm gear of the table through a horizontal bearing, and the lower end of the rotating shaft of the table is fixed on the worm box body through a needle bearing, And the cover plate is fixed by bolts on the worm box at the lower end of the rotating shaft of the worktable.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The rotary table can complete the indexing of any angle within the range of 0°-360°, so that the table can be continuously rotated and fed, and can be used as a rotary coordinate axis of the machine tool for processing various arc or linear coordinates. The shaft can process the curved surface by linkage, and can also be used as an indexing head to complete the indexing and changing of the workpiece.

2. The rotary table adopts a servo drive system to realize rotation, indexing and positioning, and its positioning accuracy is determined by the control system. The rotary table is driven by a servo motor, and is driven by gears and worm gears for rotary feed motion. The number of pulses specified by the system determines the indexing angle, and the transmission precision of the rotary table is high.

Description of drawings

Fig. 1 is the top view schematic diagram of the utility model structure;

Fig. 2 is the side view development schematic diagram of the utility model structure;

FIG. 3 is a schematic diagram of the installation of the rotary table and the rotary shaft of the table according to the structure of the present invention.

In the figure: 1. Rotary table support frame; 2. Multi-gear box; 3. Driving gear; 4. Driving motor; 5. Driven roller; 6. Worm box; 7. Transmission worm; 8. Worktable worm; 9. Bearing box; 10. Tool installation groove; 11. Rotary table; 12. Table rotating shaft; 13. Sleeve; 14. Horizontal bearing; 15. Vertical bearing; 16. Support seat; 17. Needle roller Bearing; 18, limit block; 19, support block; 20, groove.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a rotary table of a CNC machine tool for cambered worm processing, comprising a rotary table support frame 1, a drive motor 4, a transmission worm 7, and a table worm wheel 8 And the rotary table 11, a rotary table 11 is installed on the upper end of the rotary table support frame 1, and six sets of tool installation grooves 10 for installing tools are evenly opened on the rotary table 11, and a worm screw is fixed on the rear side of the rotary table support frame 1 The box body 6, and the bearing box 9 is fixed on the left side of the worm box body 6, and the multi-tooth box 2 is fixed on the right side of the bearing box 9, and the drive motor 4 is installed on the side of the multi-tooth box 2. The drive motor 4 is a servo motor and drives A drive gear 3 is installed on the output shaft at the front end of the motor 4. The drive gear 3 meshes with the driven roller 5 installed at the front end of the transmission worm 7, and the rear end of the transmission worm 7 is installed inside the bearing housing 9 through a bearing. The worm installed by the transmission worm 7 Inside the box 6, the transmission worm 7 meshes with the table worm gear 8 fixed at the lower end of the rotary table 11; the middle of the rotary table 11 is fixed with a table rotating shaft 12 by bolts, and the outer side of the table rotating shaft 12 is sleeved with a sleeve The tube 13 and the sleeve 13 are connected to the support seat 16 through bearings, and the support seat 16 is fixed on the worm box 6 by bolts; when in use, the belt tool installed above the tool installation groove 10 can slide back and forth inside the tool installation groove 10 to drive the motor 4 can be replaced by the use of electro-hydraulic pulse motor or power stepper motor drive, power motor drive, driven by the drive motor 4 to drive the drive gear 3 to drive the driven roller 5 to rotate, and then to drive the table worm wheel 8 to rotate by rotating the transmission worm 7 to drive the rotation. The worktable 11 performs a rotary feed motion, and the indexing angle is determined according to the number of pulses specified by the servo control system, so the transmission accuracy of the rotary worktable is high.

The rotary table support frame 1, the worm box 6 and the bearing box 9 are integrated into one structure, and the outer side of the bearing box 9 is fixed with a cover plate by bolts, and a removable cover plate is installed on the side of the middle of the worm box 6 to facilitate the transmission of the worm 7 At the same time, lubricating oil is injected into the inner cavity of the transmission worm 7 and the multi-gear box 2, which reduces the wear caused by the meshing of the driving gear 3 and the driven roller 5, and reduces the friction between the transmission worm 7 and the table worm gear 8. Wear, the upper end of the worm box body 6 is provided with a support block 19, and the upper end of the support block 19 is inserted in the groove 20 outside the lower end of the rotary table 11, which has the effect of supporting the rotary table 11, while supporting the worm box outside the seat 16. An L-shaped limit block 18 is installed on the bottom of the body 6, and the lower end of the table worm gear 8 fixed at the lower end of the rotary table 11 is installed inside the limit block 18, and the inside of the limit block 18 has the effect of restricting the table worm gear 8 .

The rear end of the transmission worm 7 is rotated and installed inside the bearing box 9 through the bearing, and the front end of the transmission worm 7 is rotated and installed inside the worm box 6 through the bearing, and the front end of the transmission worm 7 extends out of the worm box 6 and enters the multi-gear box 2. The driven roller 5 is installed on the rod body, the drive motor 4 drives the transmission worm 7 to rotate inside the worm box 6, and then drives the rotary table 11 to rotate. The upper end of the support seat 16 is connected to the bottom plate of the rotary table 11 through the vertical bearing 15, and supports The side of the seat 16 is connected with the worm gear 8 of the worktable through the horizontal bearing 14, so that the rotary motion is flexible. The cover plate is fixed on the box body 6 by bolts to ensure the rotation accuracy and centering accuracy. A sleeve 13 is sleeved on the outer side of the worktable rotating shaft 12, and a limit nut is screwed on the worktable rotating shaft 12 below the sleeve 13 , and the sleeve 13 is fixed on the rotary table 11 by bolts to ensure the relative rotation of the table rotating shaft 12 and the support base 16 .

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a cambered surface worm processing is with workstation that circles round of digit control machine tool, includes workstation support frame (1), driving motor (4), transmission worm (7), workstation worm wheel (8) and workstation (11) of circling round, its characterized in that: the upper end of the rotary worktable support frame (1) is provided with a rotary worktable (11), six groups of cutter mounting grooves (10) for mounting cutters are uniformly formed in the rotary worktable (11), a worm box body (6) is fixed on the rear side of the rotary worktable support frame (1), a bearing box (9) is fixed on the left side of the worm box body (6), a multi-tooth box (2) is fixed on the right side of the bearing box (9), a driving motor (4) is arranged on the side surface of the multi-tooth box (2), and an output shaft at the front end of the driving motor (4) is provided with a driving gear (3), the driving gear (3) is meshed with a driven roller (5) arranged at the front end of a transmission worm (7), the rear end of the transmission worm (7) is arranged in the bearing box (9) through a bearing, the transmission worm (7) is arranged in the worm box body (6), and the transmission worm (7) is meshed with a workbench worm wheel (8) fixed at the lower end of the rotary workbench (11);

the middle part of the rotary workbench (11) is fixed with a workbench rotating shaft rod (12) through a bolt, the outer side of the workbench rotating shaft rod (12) is sleeved with a sleeve (13), the sleeve (13) is connected with a supporting seat (16) through a bearing, and the supporting seat (16) is fixed on the worm box body (6) through a bolt.

2. The rotary worktable of the numerically-controlled machine tool for machining the arc worm according to claim 1, characterized in that: the rotary worktable support frame (1), the worm box body (6) and the bearing box (9) are of an integral structure, a cover plate is fixed on the outer side of the bearing box (9) through bolts, the detachable cover plate is installed on the side face of the middle of the worm box body (6), and lubricating oil is injected into an inner cavity formed by installing the transmission worm (7) and the multi-tooth box (2).

3. The rotary worktable of the numerically-controlled machine tool for machining the arc worm according to claim 1, characterized in that: the worm box (6) upper end is provided with supporting shoe (19), and in supporting shoe (19) upper end assigns into the recess (20) of circling round workstation (11) lower extreme outside, installs stopper (18) of L type on worm box (6) bottom in supporting seat (16) outside simultaneously, and the workstation worm wheel (8) lower extreme that workstation (11) lower extreme was fixed of circling round installs inside stopper (18).

4. The rotary worktable of the numerically-controlled machine tool for machining the arc worm according to claim 1, characterized in that: the rear end of the transmission worm (7) is rotatably installed in the bearing box (9) through a bearing, the front end of the transmission worm (7) is rotatably installed in the worm box body (6) through the bearing, and the front end of the transmission worm (7) extends out of the worm box body (6) to enter the rod body in the multi-tooth box (2) and is provided with the driven roller (5).

5. The rotary worktable of the numerically-controlled machine tool for machining the arc worm according to claim 1, characterized in that: the outer side of the workbench rotating shaft rod (12) is sleeved with a sleeve (13), the workbench rotating shaft rod (12) below the sleeve (13) is connected with a limiting nut in a threaded mode, and the sleeve (13) is fixed on the rotary workbench (11) through a bolt.

6. The rotary worktable of the numerically-controlled machine tool for machining the arc worm according to claim 1, characterized in that: the upper end of the supporting seat (16) is connected with a base plate of the rotary workbench (11) through a vertical bearing (15), the side face of the supporting seat (16) is connected with a worm wheel (8) of the workbench through a horizontal bearing (14), meanwhile, the lower end of a rotating shaft rod (12) of the workbench is fixed on a worm box body (6) through a needle bearing (17), and a cover plate is fixed on the worm box body (6) at the lower end of the rotating shaft rod (12) of the workbench through a bolt.

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