CN105479190B - A worm gear two-stage control rotary table - Google Patents

Abstract

The invention discloses a worm and gear two-stage regulation rotary worktable, which comprises a worktable, a rotating shaft, a rotary base, a worktable base and a base, wherein the rotating shaft is arranged under the worktable, an external control end is used for controlling the rotary worktable to return to zero, firstly, a motor is controlled to rotate to drive a rotary gearbox to work, the rotary worm is driven to rotate, the rotary base and the worktable are driven to return to an original point, the rotary base and the worktable are driven to basically return to the original point, the rotary shaft gearbox is driven to work by controlling the servo motor to rotate, the rotary shaft worm is driven to rotate, the rotary shaft worm gear is driven to rotate, the rotating shaft is driven to rotate, the worktable is driven to rotate, fine adjustment and original point return are realized, and when indexing work is required during processing, the rotary worm and the worm and.

Description

A worm gear two-stage control rotary table

technical field

The invention relates to a machine tool accessory, in particular to a worm wheel and worm two-stage control rotary workbench.

Background technique

As the name suggests, the turntable is a rotatable work platform, which is used in various fields. In machining, the turntable is indispensable. The turntable is a rotatable table for clamping workpieces and A machine tool accessory that realizes rotary and indexing positioning, especially suitable for turning and milling compound processing machine tools that can rotate tools and workpieces. The rotary table usually includes two parts: the table and the rotary body installed under the table. The clamping device is used as a rotary machine tool. An important part of the workbench, it is used to keep the workbench in a locked state after the rotary workbench is precisely positioned or indexed, thereby ensuring the machining accuracy of the workpiece.

Now with the continuous progress of the industrial society, the processing technology is also constantly improving, and the processing accuracy is getting higher and higher. The ordinary rotary table cannot meet the increasing processing accuracy due to its large indexing error and inaccurate zero return position.

Contents of the invention

The object of the present invention is to provide a worm gear two-stage control rotary table to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A worm gear and worm two-stage control rotary worktable, including a worktable, a rotating shaft, a rotating base, a worktable base and a base, the rotating shaft is arranged directly below the working table, the lower surface of the rotating shaft is provided with a rotating shaft worm gear, and the rotating shaft worm gear One side is provided with a rotating shaft worm, the rotating shaft worm is installed in the rotating base, one end of the rotating shaft worm is provided with a rotating shaft gear, the rotating shaft gear is connected with the rotating shaft gearbox installed in the rotating base, and the rotating shaft gearbox is connected with the rotating shaft installed on the rotating base The servo motor in the center is connected, the lower part of the rotating shaft is installed in the base of the workbench, and the rotating shaft is sleeved in the rotating base. On the table, a rotating worm gear is provided on the middle surface of the rotating base, and a rotating worm is installed on one side of the rotating worm gear. The rotary gearbox in the table base is connected, the rotary gearbox is connected with the motor installed on the workbench base, the bottom of the rotary base is installed in the workbench base, and the two sides of the workbench base are connected with the shaft on the base Connection, a control motor is provided on one side of the base of the workbench, a fixed hydraulic cylinder is provided above the connecting shaft of the base, a claw-shaped push rod is arranged in the fixed hydraulic cylinder, and the front end of the claw-shaped push rod is arranged in an arc-shaped groove outside the shell middle.

As a further solution of the present invention: the rotating shaft is a hollow shaft, the upper end of the rotating shaft is provided with a connecting boss, the connecting boss is provided with a threaded hole, the rotating shaft is connected to the worktable through bolts, and the worm gear of the rotating shaft is fixedly connected to the rotating shaft. The lower end of the rotating shaft is installed in the rotating shaft seat in the workbench base through bearings.

As a further solution of the present invention: the rotating base is cylindrical, the rotating shaft gearbox and the servo motor are installed on the inner wall of the rotating base, and the rotating shaft worm is installed in the bearing seat on the inner wall of the rotating base through bearings , the load-bearing platform on the upper part of the rotating base is provided with a plurality of thrust bearing grooves, the rotating worm wheel is fixedly connected to the rotating base, and the lower end of the rotating base is installed in the rotating base groove in the workbench base through the thrust bearing .

As a further solution of the present invention: the base of the workbench is provided with a shell connecting seat, the shell connecting seat is provided with a shell, the upper end of the shell is connected to the retaining ring by screws, and the back of the rotating shaft seat of the workbench base is provided with an end cover , the two sides of the base of the workbench are provided with connecting grooves, the base of the workbench is connected to the connecting shaft on the base through the connecting grooves, the rotating worm is connected to the bearing seat in the base of the workbench through bearings, and the motor passes through The screw connection is on the outside of the table base.

As a further solution of the present invention: the upper surface of the workbench is provided with a plurality of slide grooves, the workbench is provided with a plurality of countersunk holes which are connected with the rotating shaft, and the lower surface of the workbench is provided with a boss matched with the thrust bearing .

As a further solution of the present invention: a control gearbox is provided inside the base, and the control gearbox is connected with the control motor on the outside and the connecting shaft, and the connecting shaft is a toothed connecting shaft.

Compared with the prior art, the beneficial effects of the present invention are: the present invention is novel in structure, and a dual control mechanism is designed through the set rotating base worm gear and rotating shaft worm gear, which can complete the indexing work with high precision and return to the zero position. Accurate, through the connection between the base and the base of the workbench, the invention can complete the tilting action, better cooperate with the machining work of the machine tool, improve the machining accuracy of the workpiece, and meet the use requirements.

Description of drawings

Figure 1 is a schematic structural diagram of a worm gear two-stage control rotary table.

Fig. 2 is a schematic diagram of the structure of the worm gear in the rotary table with two-stage control of the worm gear.

In the figure: 1-control motor; 2-base; 3-shell; 4-rotating worm gear; 5-screw; 6-stop ring; 7, 25-thrust bearing; 8-table; 9-chute; 10-thread ;11-rotating shaft gearbox; 12-rotating shaft; 13-connecting boss; 14-servo motor; 15-rotating base; 16-bearing platform; 17-rotating shaft worm gear; - table base; 21-rotary base slot; 22-shaft seat; 23-gland; 24, 40-bearing; 26-table base; 27-connecting slot; Arc groove; 2-2-claw push rod; 2-3-fixed hydraulic cylinder; 29-motor; 30-workbench base connection frame; 31-gear; 32-rotary gearbox; 33-rib; -Bearing housing; 35-rotating worm shaft; 37-rotating shaft worm shaft; 38-rotating shaft gear; 39-rotating gear.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, 2, in the embodiment of the present invention, a kind of worm gear two-stage control rotary workbench, comprises workbench 8, rotating shaft 12, rotating base 15, workbench base 26 and base 2, and rotating shaft 12 is arranged on Directly below the workbench 8, the lower surface of the rotating shaft 12 is provided with a rotating shaft worm gear 17, one side of the rotating shaft worm gear 17 is provided with a rotating shaft worm 19, the rotating shaft worm 19 is installed in the rotating base 15, and one end of the rotating shaft worm 19 is provided with a rotating shaft gear 38, the rotating shaft gear 38 is connected with the rotating shaft gearbox 11 installed in the rotating base 5, the rotating shaft gearbox 11 is connected with the servo motor 14 installed in the rotating base 15, the bottom of the rotating shaft 12 is installed in the workbench base 26, and the rotating shaft 12 is socketed In the rotating base 15, the upper part of the rotating base 15 is provided with a load-bearing platform 16, and the workbench 8 is installed on the bearing platform 16 through the thrust bearing 7, and the surface of the middle part of the rotating base 15 is provided with a rotating worm gear 18, and the rotating worm gear 18- The side is provided with a rotary worm 19, the rotary worm 19 is installed in the worktable base 26, and one end of the rotary worm 19 is provided with a rotary gear 39, and the rotary gear 39 is connected with the rotary gearbox 32 installed in the worktable base 26, and the rotation speed is changed. Box 32 is connected with the motor 29 that is installed on the workbench base 26, and the bottom of the rotating base 15 is installed in the workbench base 26, and the two sides of the workbench base 26 are connected with the connecting shaft 28 on the base 2, and the workbench base 26 one side is provided with control motor 1, is provided with fixed hydraulic cylinder 2-3 above the connecting shaft 28 of base 2, is provided with claw-shaped push rod 2-2 in fixed hydraulic cylinder 2-3, and the front end of claw-shaped push rod 2-2 Located in the arc groove 2-1 outside the shell, the rotating shaft 12 is a hollow shaft, the upper end of the rotating shaft 12 is provided with a connecting boss 13, and the connecting boss 13 is provided with a threaded hole, and the rotating shaft 12 is connected to the workbench 8 through a bolt 10, The rotating shaft worm wheel 17 is fixedly connected with the rotating shaft 12, and the lower end of the rotating shaft 12 is installed in the rotating shaft seat 22 in the workbench base 26 through the bearing 24. The rotating base 15 is cylindrical, and the rotating shaft gearbox 11 and the servo motor 14 are installed on the rotating base. On the inner wall of 15, the rotating shaft worm 4 is installed in the bearing seat 34 on the inner wall of the rotating base 15 through the bearing 40, and the supporting platform 16 on the rotating base 15 top is provided with a plurality of thrust bearing grooves, and the rotating worm gear 18 and the rotating base 15 is fixedly connected, and the lower end of the rotating base 15 is installed in the rotating base groove 21 in the workbench base 26 through the thrust bearing 25. 3. The upper end of the shell 3 is connected to the retaining ring 6 through the screw 5, the end cover 23 is provided on the back of the rotating shaft seat 22 of the workbench base 26, the two sides of the workbench base 26 are provided with connecting grooves 27, and the workbench base 26 passes through the connecting groove 27 is connected to the connecting shaft 28 on the base 2, the rotating worm 4 is connected in the bearing seat in the workbench base 26 through the bearing 40, the motor 29 is connected to the outside of the workbench base 26 by screws, and the upper surface of the workbench 8 is provided with multiple chute 9, the workbench 8 is provided with a plurality of countersunk holes that are connected with the rotating shaft 12, the lower surface of the workbench 8 is provided with a boss that matches the thrust bearing 7, and the inside of the base 2 is provided with a control variable Speed box, the control gearbox is connected with the control motor 1 on the outside and the connecting shaft 28, and the connecting shaft 28 is a toothed connecting shaft.

The working principle of the present invention is: first, the workpiece is clamped by the clamping tool on the slide rail of the workbench, and then the rotary table is controlled by the external control terminal to "return to zero". First, the motor rotates, drives the rotary gearbox to work, and drives the rotary worm to rotate , to drive the rotating base and the workbench to return to the original point. By controlling the rotation of the servo motor, it drives the shaft gearbox to work, drives the shaft worm to rotate, drives the shaft worm gear to rotate, drives the shaft to rotate, and drives the worktable to rotate to achieve fine-tuning and return to the origin , when indexing work is required during processing, by controlling the rotation of the rotating worm gear and the rotating shaft worm gear, two-stage regulation is realized, and the indexing accuracy is improved, so that the indexing requirements meet the processing conditions. The invention has a novel structure, and a double control mechanism is designed through the set rotating base worm gear and rotating shaft worm gear, which can complete the indexing work with high precision, and the zeroing position is accurate. , so that the invention can complete the tilting action, better cooperate with the machining work of the machine tool, improve the machining accuracy of the workpiece, and meet the use requirements.

It will be apparent to those skilled in the art that the invention is not limited to the details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (6)

1. a kind of worm and gear twin-stage regulates and controls rotary table, including workbench, rotating shaft, rotating basis, Workbench base and bottom Seat, it is characterised in that the rotating shaft is located at immediately below workbench, and the rotating shaft lower surface is provided with rotating shaft worm gear, rotating shaft worm gear Side is provided with rotating shaft worm screw, and the rotating shaft worm screw is arranged in rotating basis, and rotating shaft worm screw one end is provided with shaft gear, rotating shaft tooth Take turns and be connected with the rotating shaft gearbox in rotating basis, rotating shaft gearbox connects with the servomotor in rotating basis Connect, be arranged on below rotating shaft in Workbench base, the rotating shaft is socketed in rotating basis, and the rotating basis top is provided with and held Power platform, the workbench are arranged on force-bearing table by thrust bearing, and the rotating basis middle part surface is provided with rotation of worm gear, rotation Turn worm gear side and be provided with rotary worm, the rotary worm is arranged in Workbench base, and rotary worm one end is provided with rotation Rotating disk, rotation gear are connected with the rotation gearbox in Workbench base, and rotation gearbox is with being arranged on workbench Motor connection on pedestal, rotating basis lower section are arranged in Workbench base, and the Workbench base both sides on base with connecting Spindle connects, and Workbench base side is provided with controlled motor, and fixer cylinder pressure, fixer are provided with above the connecting shaft of the base Claw type push rod is provided with cylinder pressure, claw type push rod front end is located in the deep-slotted chip breaker of outer side.

2. worm and gear twin-stage according to claim 1 regulates and controls rotary table, it is characterised in that the rotating shaft is hollow Axle, rotating shaft upper end are provided with connection boss, and connection boss is provided with screwed hole, and the rotating shaft is connected by bolt with workbench, institute State that rotating shaft worm gear is affixed with rotating shaft, rotating shaft lower end is arranged in the shaft seat in Workbench base by bearing.

3. worm and gear twin-stage according to claim 1 regulates and controls rotary table, it is characterised in that the rotating basis is Tubular, the rotating shaft gearbox and servomotor are arranged on the inwall of rotating basis, and the rotating shaft worm screw is installed by bearing In bearing block on rotating basis inwall, the force-bearing table on the rotating basis top is provided with multiple thrust bearing grooves, the rotation Turn that worm gear is affixed with rotating basis, rotating basis lower end is arranged on the rotating basis groove in Workbench base by thrust bearing In.

4. worm and gear twin-stage according to claim 1 regulates and controls rotary table, it is characterised in that the Workbench base Cage connection seat is provided with, cage connection seat is provided with shell, and shell upper end is connected by screw baffle ring, the Workbench base The shaft seat back side be provided with end cap, the Workbench base both sides are provided with link slot, and Workbench base connects bottom by link slot Connecting shaft on seat, the rotary worm are connected in the bearing block in Workbench base by bearing, and the motor passes through spiral shell Nail is connected on the outside of Workbench base.

5. worm and gear twin-stage according to claim 1 regulates and controls rotary table, it is characterised in that the workbench upper table Face is provided with a plurality of chute, and workbench is engaged counter sink provided with multiple be connected with rotating shaft, and workbench lower surface is provided with and thrust The boss that bearing is engaged.

6. worm and gear twin-stage according to claim 1 regulates and controls rotary table, it is characterised in that the chassis interior is set There is control gearbox, control the controlled motor and connection axis connection of gearbox and outside, the connecting shaft is tooth form connecting shaft.