CN114871523A - A spiral groove workpiece rotating clamping mechanism and wire cutting processing equipment - Google Patents

Abstract

The invention discloses a spiral groove workpiece rotary clamping mechanism and a linear cutting machining device, wherein the rotary clamping mechanism comprises a base, a chuck for clamping and fixing a workpiece and a rotary driving mechanism for driving the chuck to rotate; the base is fixed on a workbench of the online cutting and machining equipment; the rotary driving mechanism is arranged on the base; the chuck is fixedly connected with the driving end of the rotary driving mechanism; the rotary driving mechanism is connected with the base through a mounting seat, the mounting seat is connected with the base through a hinge structure, and an angle adjusting mechanism used for adjusting the angle posture of the workpiece is arranged between the mounting seat and the base. The linear cutting machining equipment can machine the structure of the spiral groove, the cutting mode is diversified, and the adaptability is wide.

Description

A spiral groove workpiece rotating clamping mechanism and wire cutting processing equipment

technical field

The invention relates to a clamping mechanism and wire cutting processing equipment, in particular to a spiral groove workpiece rotating clamping mechanism and wire cutting processing equipment.

Background technique

Wire cutting is a kind of EDM wire cutting. It uses the continuous moving electrode wire as the electrode to perform pulse spark discharge on the workpiece to remove metal, cut and form. The roundness error, straight line error and dimensional error obtained by the wire cutting machine are all The faster wire cutting machine is much better and the speed is much faster, so the wire cutting machine has been widely used in the processing of various complex shapes and precision small workpieces.

For example, the utility model patent application publication number CN207735723U discloses a slow-moving wire cutting device. The slow-moving wire cutting device introduces the electrode wire into the pulse generator, which is used to generate electric sparks on the electrode wire, and the end of the electrode wire is fed through the wire. The device is led above the cutting die for cutting the workpiece.

The above-mentioned wire cutting machine has the following problems:

Only straight line cutting can be performed, the cutting method is too simple, and it cannot be cut for spiral products.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned problems, and to provide a spiral groove workpiece rotating clamping mechanism and wire cutting processing equipment, the wire cutting processing equipment can process the spiral groove structure, the cutting mode is diversified, and the adaptability is wide.

Another object of the present invention is to provide a wire cutting processing equipment.

The object of the present invention is achieved through the following technical solutions:

A spiral groove workpiece rotation clamping mechanism, comprising a base, a chuck for clamping and fixing the workpiece, and a rotary drive mechanism for driving the chuck to rotate;

The base is fixed on the worktable of the wire cutting processing equipment; the rotation driving mechanism is arranged on the base; the chuck is fixedly connected with the driving end of the rotation driving mechanism.

The working principle of the above-mentioned spiral groove workpiece rotating clamping mechanism is as follows:

The base is fixedly installed on the worktable of the wire cutting processing equipment, and the workpiece to be cut is installed on the chuck. Then start the wire cutting equipment and the rotary drive mechanism, and drive the workpiece to rotate through the chuck; at the same time or before, drive the electrode wire of the EDM device to approach the workpiece through the feed drive mechanism, and drive the worktable through the feed drive mechanism. The linear movement makes the electrode wire and the workpiece form a helical motion, and finally a helical groove is machined on the workpiece.

In a preferred solution of the present invention, the rotary drive mechanism includes a drive motor and a transmission shaft, one end of the transmission shaft is fixedly connected to the chuck, and the other end is connected to the output shaft of the drive motor. Through the above structure, under the driving of the driving motor, the transmission shaft drives the chuck to rotate.

Further, one end of the transmission shaft is connected with the output shaft of the driving motor through a coupling, and the other end of the transmission shaft is fixedly connected with the chuck.

Preferably, the transmission shaft is mounted on the mounting seat through a bearing set, and the bearing set includes a front bearing arranged at the front of the transmission shaft and a rear bearing arranged at the rear of the transmission shaft.

In a preferred solution of the present invention, the chuck is composed of a multi-jaw chuck.

In a preferred solution of the present invention, the rotary drive mechanism is connected to the base through a mounting seat, the mounting seat is connected to the base through a hinge structure, and an angle adjustment mechanism for adjusting the angular attitude of the workpiece is provided between the mounting seat and the base .

Further, the angle adjustment mechanism includes an adjustment handwheel, an adjustment transmission mechanism and a locking mechanism for locking the position of the mounting seat;

The adjusting handwheel is rotatably connected to the side plate of the base;

The adjustment transmission mechanism includes an adjustment shaft, a driving gear and an arc-shaped rack, and both ends of the adjustment shaft are respectively connected with the adjustment handwheel and the driving gear; the arc-shaped rack is engaged with the driving gear, and the arc-shaped rack is engaged with the driving gear. The rack is fixedly arranged at the lower end of the mounting seat;

The locking mechanism includes a locking plate and a locking screw, the locking plate is fixedly arranged on the front vertical plate of the base, and the locking screw is arranged on the locking plate through a threaded connection structure; There is a locking part at the bottom. Through the above structure, when the adjustment handwheel is shaken, the adjustment shaft connected to the adjustment handwheel will rotate, the rotation of the adjustment shaft will make the driving gear installed on it rotate, and the rotation of the driving gear will make the arc-shaped rack meshing with it rotate. Rotation, the rotation of the arc-shaped rack makes the mounting seat rotate around the hinge center of the hinge structure, so that the pitch angle of the workpiece to be cut can be adjusted. Next, tighten the locking screw, so that the locking screw moves in the direction of the locking portion and presses against the locking portion, so as to fix the position of the locking portion, that is, fix the position of the mounting seat. The position of the chuck on the mounting seat is also fixed, and the position of the workpiece to be cut clamped on the chuck is also fixed, so that the position between the workpiece and the electrode wire remains unchanged during operation.

Further, the adjustment handwheel is connected with the adjustment shaft through a harmonic reducer.

A wire cutting processing equipment includes the spiral groove workpiece rotation clamping mechanism and a wire cutting processing machine tool, the wire cutting processing machine tool includes a worktable, an electric spark cutting device and a feeding driving mechanism.

Further, the feeding driving mechanism includes a transverse driving mechanism for driving the table to move and a vertical driving mechanism for driving the wire electrode of the electric spark cutting device to move vertically.

Compared with the prior art, the present invention has the following beneficial effects:

The invention makes the workpiece to be cut rotate by setting the rotary drive mechanism, and drives the electrode wire to perform linear motion in combination with the feed drive mechanism. The linear motion and the rotary motion synthesize the helical motion, and finally the helical groove wire EDM is realized on the workpiece. processing.

Description of drawings

1-2 are schematic three-dimensional structural diagrams of two different viewing angles of the rotary clamping mechanism for the helical groove workpiece of the present invention.

Fig. 3 is a side view of the rotary clamping mechanism for the helical groove workpiece of the present invention.

FIG. 4 is a cross-sectional view of the spiral groove workpiece rotating clamping mechanism of the present invention.

Detailed ways

In order to make the technical solutions of the present invention well understood by those skilled in the art, the present invention will be further described below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

Referring to Figures 1-4, a wire EDM equipment of this embodiment includes a spiral groove workpiece rotating clamping mechanism and a wire EDM machine tool, the wire EDM machine tool includes a worktable 1, an EDM device and a feed drive Institution (not shown in the picture).

Further, the feeding driving mechanism includes a lateral driving mechanism for driving the table 1 to move and a vertical driving mechanism for driving the wire electrode 2 of the EDM device to move vertically.

1-4, the rotary clamping mechanism includes a base 3, a chuck 4 for clamping and fixing the workpiece, and a rotary drive mechanism for driving the chuck 4 to rotate; the base 3 is fixed for the wire cutting process On the table 1 of the equipment; the rotary drive mechanism is arranged on the base 3; the chuck 4 is fixedly connected with the driving end of the rotary drive mechanism; Jaw chuck or four-jaw chuck; of course, other clamps in the prior art can also be used.

1-4 , the rotary drive mechanism includes a drive motor 5 and a transmission shaft. One end of the transmission shaft is fixedly connected to the chuck 4 , and the other end is connected to the output shaft of the drive motor 5 . Through the above structure, under the driving of the driving motor 5, the transmission shaft drives the chuck 4 to rotate.

Further, one end of the transmission shaft is connected with the output shaft of the driving motor 5 through a coupling, and the other end of the transmission shaft is fixedly connected with the chuck 4 .

Further, the transmission shaft is mounted on the mounting seat 6 through a bearing set, and the bearing set includes a front bearing arranged at the front of the transmission shaft and a rear bearing arranged at the rear of the transmission shaft.

1-4, the drive motor 5 is connected to the base 3 through a mounting seat 6, the mounting seat 6 is connected to the base 3 through a hinged structure, and between the mounting seat 6 and the base 3 is provided with an angular posture for adjusting the workpiece. Angle adjustment mechanism.

Further, the angle adjustment mechanism includes an adjustment hand wheel 7, an adjustment transmission mechanism and a locking mechanism for locking the position of the mounting seat 6; the adjustment hand wheel 7 is rotatably connected to the side plate 3-1 of the base 3; The adjustment transmission mechanism includes an adjustment shaft 8, a driving gear 9 and an arc-shaped rack 10. The two ends of the adjustment shaft 8 are respectively connected with the adjustment handwheel 7 and the driving gear 9; the arc-shaped rack 10 is connected with the driving gear 9. The gear 9 is engaged, and the arc-shaped rack 10 is fixedly arranged on the lower end of the mounting seat 6; the locking mechanism includes a locking plate 11 and a locking screw 12, and the locking plate 11 is fixedly arranged on the front vertical plate of the base 3 3-2, the locking screw 12 is provided on the locking plate 11 through a threaded connection structure; the bottom of the mounting seat 6 is provided with a locking portion 6-1.

Through the above structure, when the adjusting handwheel 7 is shaken, the adjusting shaft 8 connected to the adjusting handwheel 7 will be rotated, the rotation of the adjusting shaft 8 will make the driving gear 9 mounted thereon rotate, and the rotation of the driving gear 9 will make the The meshed arc-shaped rack 10 rotates, and the rotation of the arc-shaped rack 10 makes the mounting seat 6 rotate around the hinge center of the hinge structure, so that the pitch angle of the workpiece to be cut can be adjusted. Next, tighten the locking screw 12, so that the locking screw 12 moves in the direction of the locking portion 6-1, and presses against the locking portion 6-1, thereby fixing the position of the locking portion 6-1, that is, the mounting seat 6-1 is fixed. In this way, the position of the collet 4 mounted on the mounting seat 6 through the transmission shaft is also fixed, and the position of the workpiece to be cut clamped on the collet 4 is also fixed, so that the workpiece and the electrode wire 2 Keep the same position while working.

Further, the adjustment handwheel 7 is connected to the adjustment shaft 8 through a harmonic reducer 13 .

Referring to Figures 1-4, the working principle of the helical groove workpiece rotating clamping mechanism in this embodiment is as follows:

The base 3 is fixedly mounted on the worktable 1 of the wire cutting processing equipment, and the workpiece to be cut is mounted on the chuck 4 . Then start the wire cutting processing equipment and the rotary drive mechanism, and drive the workpiece to rotate through the chuck 4; at the same time or before, drive the electrode wire 2 of the EDM device to approach the workpiece through the feed drive mechanism, and drive the work through the feed drive mechanism The table 1 moves linearly, so that the electrode wire 2 and the workpiece form a helical motion, and finally a helical groove is machined on the workpiece.

The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned content, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention, All should be equivalent replacement modes, which are all included in the protection scope of the present invention.

Claims (10)

1. A spiral groove workpiece rotary clamping mechanism is characterized by comprising a base, a chuck and a rotary driving mechanism, wherein the chuck is used for clamping and fixing a workpiece, and the rotary driving mechanism is used for driving the chuck to rotate;

the base is fixed on a workbench of the online cutting and machining equipment; the rotary driving mechanism is arranged on the base; the chuck is fixedly connected with the driving end of the rotary driving mechanism.

2. The spiral groove workpiece rotary clamping mechanism according to claim 1, wherein the rotary driving mechanism comprises a driving motor and a transmission shaft, one end of the transmission shaft is fixedly connected with the chuck, and the other end of the transmission shaft is connected with an output shaft of the driving motor.

3. The spiral groove workpiece rotary clamping mechanism according to claim 2, wherein one end of the transmission shaft is connected with the output shaft of the driving motor through a coupler, and the other end of the transmission shaft is fixedly connected with the chuck.

4. The spiral grooved workpiece rotary clamping mechanism of claim 2 wherein the drive shaft is mounted to the mounting block by a bearing set comprising a front bearing disposed at a front portion of the drive shaft and a rear bearing disposed at a rear portion of the drive shaft.

5. The spiral grooved workpiece rotary clamping mechanism of claim 1 wherein the collet is comprised of a multi-jaw chuck.

6. The spiral groove workpiece rotary clamping mechanism according to claim 2, wherein the rotary driving mechanism is connected with the base through a mounting seat, the mounting seat is connected with the base through a hinge structure, and an angle adjusting mechanism for adjusting the angular posture of the workpiece is arranged between the mounting seat and the base.

7. The spiral groove workpiece rotary clamping mechanism of claim 6, wherein the angle adjustment mechanism comprises an adjusting hand wheel, an adjusting transmission mechanism and a locking mechanism for locking the position of the mounting seat;

the adjusting hand wheel is rotationally connected to a side plate of the base;

the adjusting transmission mechanism comprises an adjusting rotating shaft, a driving gear and an arc-shaped rack, and two ends of the adjusting rotating shaft are respectively connected with an adjusting hand wheel and the driving gear; the arc-shaped rack is meshed with the driving gear and is fixedly arranged at the lower end of the mounting seat;

the locking mechanism comprises a locking plate and a locking screw, the locking plate is fixedly arranged on the front vertical plate of the base, and the locking screw is arranged on the locking plate through a threaded connection structure; the bottom of the mounting seat is provided with a locking part.

8. The spiral groove workpiece rotary clamping mechanism of claim 7, wherein the adjusting hand wheel is connected with the adjusting rotating shaft through a harmonic reducer.

9. A wire-cut machining apparatus comprising the spiral groove workpiece rotary clamping mechanism and a wire-cut machining tool according to any one of claims 1 to 8, the wire-cut machining tool comprising a table, an electric discharge cutting device, and a feed drive mechanism.

10. The wire-cut electrical discharge machining apparatus according to claim 9, wherein the feed drive mechanism includes a lateral drive mechanism for driving the table to move and a vertical drive mechanism for driving the wire electrode of the electrical discharge cutting device to move vertically.

Images