CN201020619Y - Workpiece built-in CNC rotary pendulum table - Google Patents

Abstract

The utility model provides a built-in workpiece numerical control swivel pendulum workbench. It is composed of a base, a lower swing table, an upper swing table and a turntable. The lower swing table is installed on the bracket on the base through the shafts on both sides, the upper swing table is installed on the lower swing table through the shafts on both sides, and the turntable is installed on the upper swing table. On the top, the turntable is provided with a transmission mechanism, a motor and a workpiece clamping tool, and the shaft ends of the upper swing table and the lower swing table are connected with a stepping motor and a reduction mechanism, and the base is fixed on the workbench of the machine tool. The utility model cooperates with the high-speed wire electric discharge machine tool to process all three-wire curved surfaces and most other space curved surface parts. In addition, this workbench can also turn the upper swing table by 90 degrees and use it as a CNC rotary table, or it can be used with other The machine tool is used as a three-axis linkage device.

Description

Workpiece built-in CNC rotary pendulum table

(1) Technical field

The utility model specifically relates to a main hardware device of a numerical control system for wire electric discharge machining of complex space curved surfaces.

(2) Background technology

Foreign slow-speed wire-cut wire-cutting machine tools are used to process space surfaces with special taper cutting devices, which is not applicable to domestic high-speed wire-cut wire-cut machine tools. At present, taper cutting and processing of some space curved surface parts can be realized by using additional devices on domestic high-speed wire electric discharge machine tools. The two-axis CNC rotary table developed by Harbin Institute of Technology can drive the processed parts to rotate around one fixed axis and swing around the other axis at the same time. It can process some complex shapes and irregular shapes on the upper and lower surfaces on the wire electric discharge machine tool. space surface parts. However, these devices can only realize two-axis CNC linkage, and can only process parts with complex curved surfaces in space. But it is powerless to process more complex space surface parts.

(3) Contents of the invention

The purpose of this utility model is to provide a built-in CNC rotary pendulum with a wide application range and simple and reasonable design, which can cooperate with the original high-speed wire electric discharge machine tool to process all three-wire curved surfaces and most other space curved surface parts. workbench.

The technical scheme adopted by the utility model to solve its technical problems is: it is composed of a base, a lower swing platform, an upper swing platform and a turntable, the lower swing platform is installed on the bracket on the base through the shafts on both sides, and the upper swing platform passes through the two sides The axis of the shaft is installed on the lower swing table, and the turntable is installed on the upper swing table. The turntable is equipped with a transmission mechanism, a motor and a workpiece clamping tool. The shaft ends on the side of the upper swing table and the lower swing table are connected with a stepping motor and a reduction mechanism. The base is fixed on the workbench of the machine tool.

The utility model also has some structural features:

1. Bearings are arranged between the two shaft ends of the lower swing table and the bracket, and between the two shaft ends of the upper swing table and the lower swing table, and the bearings are outer spherical ball bearings with seats;

2. The speed reduction mechanism is a worm gear mechanism;

3. The turntable is fixed on the upper swing table through two sets of bearings and the bottom cover, and the turntable bearing is a one-way thrust ball bearing;

4. The transmission mechanism on the turntable includes the large turntable gear and the turntable pinion meshed with the turntable large gear, the turntable pinion is connected with the turntable stepping servo motor, the turntable large gear and the turntable bushing are passed through the hexagon socket head bolts connect;

5. The inside of the turntable is provided with a boss and is matched with two sets of turntable bearings, and the bottom cover of the turntable is connected with the turntable bushing through bolts.

The utility model realizes the three-axis linkage of rotation, swing and swing through three transmission lines, and the axes of the upper and lower swing platforms are on the same plane. When the workbench is working, the stepping motor of the lower swing table is fixed on the base, and it realizes the swing of the lower swing table through the worm gear reducer; the stepping motor of the upper swing table is fixed on the lower swing table, and it is decelerated by another set of worm gear The device makes the upper swing table swing; the turntable stepper motor is fixed on the upper swing table, and it makes the turntable rotate through the gear transmission mechanism. The workpiece is clamped on the rotary table, so that the workpiece can realize the synthetic motion of one rotation and two swings, so as to achieve the purpose of three-axis linkage.

The utility model not only solves the shortage of existing complex space curved surface parts processing, but also can process all three-wire curved surfaces and most other space curved surface parts. On the plane, and realize three-axis combined movement at the same time. This workbench can be used in combination with high-speed wire electric discharge machine tool to process all three-wire curved surfaces and most other space surface parts. In addition, this workbench can also be used as a CNC rotary table with the upper swing table turned 90 degrees, or with other The machine tool is used as a three-axis linkage device.

The beneficial effect of the utility model is: while all three-conductor curved surfaces and most other space curved surface parts can be processed, the structure is simple and the cost is low. The utility model has good versatility when combined with a high-speed wire electric discharge machine tool. At the same time, the upper swing table can be rotated 90 degrees and used as a numerical control rotary table, or used as a three-axis linkage device in cooperation with other machine tools.

(4) Description of drawings

Fig. 1 is a structural principle diagram of the utility model;

Fig. 2-Fig. 3 are the structural diagrams of the turntable and the upper swing platform of the present utility model.

(5) Specific implementation methods

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

This embodiment consists of a base 1, a lower swing table 2, an upper swing table 4 and a turntable 5. The lower swing table 2 is installed on the bracket 8 on the base 1 through the shafts on both sides, and the upper swing table 4 is installed on the bearings through the shafts on both sides. On the seat 3, the turntable 5 is installed on the top swing table 4, and the turntable 5 is provided with a transmission mechanism, a motor and a workpiece clamping tool, and the shaft ends on the side of the top swing table 4 and the bottom swing table 2 are connected with a stepping motor and a speed reduction mechanism , the base 1 is fixed on the workbench of the machine tool. Combined with Figure 1, the base 1 is fixed on the workbench of the high-speed wire cutting machine tool, and the brackets 8 at both ends are fixed on the base to support the lower table, and the upper planes of the two brackets should be on the same plane to ensure the level of the lower table. The two shaft ends of platform 2 are respectively connected with worm gear reducer 9 and bearing seat 13, and the two shaft ends of upper swing platform 4 are connected with bearing seat 3 and worm gear reducer 11, so as to ensure the level of upper swing platform and at the same time Make sure that the axes of the upper and lower swing tables are on the same plane. The turntable gear 14 and the turntable pinion 6 form a transmission pair, and the turntable stepper motor 7 drives the turntable 5 to rotate. The swinging of the upper and lower swing tables is driven by stepping motors 10,12.

Combining Figure 2 and Figure 3, the turntable gear 14 is connected to the turntable bushing 15 through the hexagon socket head bolts, the turntable 5 is provided with a boss inside and cooperates with two sets of bearings 16 to ensure the rotation accuracy of the turntable, and the turntable bottom cover 17 is connected by bolts It is connected with the turntable bushing 15 to play the role of fixing the bearing 16 and the turntable 5 .

Claims (6)

1. pendulum pendulum workbench is changeed in the built-in numerical control of workpiece, it by base, set a table down, on set a table and turntable is formed, it is characterized in that: the axle by both sides of setting a table down is installed on the support on the base, on set a table by both sides the axle be installed in down set a table on, on turntable is installed in and sets a table, turntable is provided with transmission mechanism, motor and workpiece replacer, on set a table and descend the to set a table axle head of a side be connected with stepper motor and reducing gear, base is fixed on the workbench of lathe.

2. pendulum pendulum workbench is changeed in the built-in numerical control of workpiece according to claim 1, it is characterized in that: between described two axle heads and support of setting a table down, on two axle heads of setting a table and under be provided with bearing between setting a table, bearing is the roller bearing units of usheing to seat.

3. pendulum pendulum workbench is changeed in the built-in numerical control of workpiece according to claim 2, and it is characterized in that: described reducing gear is a worm-and-wheel gear.

4. pendulum pendulum workbench is changeed in the built-in numerical control of workpiece according to claim 3, it is characterized in that: turntable by two cover bearings and bottom be fixed on set a table on, the turntable bearing is a single direction thrust ball bearing.

5. pendulum pendulum workbench is changeed in the built-in numerical control of workpiece according to claim 4, it is characterized in that: the transmission mechanism on the described turntable comprises turntable gear wheel and the turntable pinion that is meshed with the turntable gear wheel, the turntable pinion links to each other with the turntable step-servo motor, and the turntable gear wheel is connected by interior hexagonal dormant bolt with the turntable lining.

6. pendulum pendulum workbench is changeed in the built-in numerical control of workpiece according to claim 5, it is characterized in that: described turntable inside is provided with boss and cooperates with two cover turntable bearings, and the turntable bottom links to each other with the turntable lining by bolt.