CN209811706U - High-precision small-aperture spinning machine - Google Patents

Abstract

The utility model relates to a small aperture spinning-lathe of high accuracy adopts the vice two rounds of spinning forming of control of positive and negative lead screw, adopts the mandrel device to guarantee the work piece shape. The utility model has the advantages that: the automatic processing machine has the advantages of simple and compact structure, automatic processing, improvement of processing quality, complete functions, labor saving, reduction of labor intensity and improvement of production efficiency; the main motion, the feeding motion and the tool changing are all simple and convenient to operate; the processing quality such as the shape, the surface roughness and the like of the workpiece is obviously improved.

Description

High-precision small-aperture spinning machine

Technical Field

The utility model relates to an air condition compressor reservoir processing domain particularly, relates to a little aperture spinning-lathe of high accuracy.

Background

Spinning is to fix a flat or hollow blank on a die of a spinning machine, and press the blank with a spinning wheel or a driving rod while the blank rotates along with a main shaft of the machine, so that the blank is locally plastically deformed. Under the combined action of the feeding motion of the rotary wheel and the rotating motion of the blank, the local plastic deformation is gradually expanded to the whole surface of the blank and is tightly attached to the die, and the spinning processing of the part is completed.

Spinning is a special forming method. The spinning method can be used for finishing the processes of deep drawing, flanging, necking, bulging, curling and the like of the rotating bodies with various shapes.

The prior full-automatic spinning machine adopts a spinning necking process when producing an air conditioner compressor reservoir or other similar workpieces, and generally adopts a processing mode of turning and trimming edges and turning and boring holes after single-wheel spinning forming. The single-wheel spinning is uneven in stress and low in working efficiency, and the defects of workpiece tension cracking or obvious wavy lines and the like can occur if the efficiency is improved; the cutter abrasion or cutter replacement machining size can be changed, and the sizes are difficult to unify; the tool changing needs debugging and size adjustment every time, so that the reject ratio is increased, and the production efficiency is reduced; when the small aperture is machined, the difficulty of turning and boring is increased or the machining cannot be performed due to the strength problem of the cutter, and the machining precision is difficult to guarantee.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem among the correlation technique, the utility model provides a little aperture spinning-lathe of high accuracy can improve processingquality, uses manpower sparingly, reduces intensity of labour, improves production efficiency.

In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows: a high-precision small-aperture spinning machine comprises a machine table and a core mold device, wherein a main shaft is arranged on one side of the machine table, a chuck is arranged at the end part of the main shaft, an X-axis slide rail is laid on the other side of the machine table, a movable X-axis slide plate is arranged on the X-axis slide rail, an X-axis lead screw is connected to the tail part of the X-axis slide plate, a tailstock is arranged on one side of the X-axis slide plate, the upper part of the tailstock is connected with a cutting tool through a cylinder, a Y-axis slide rail is laid on the other side of the X-axis slide plate, a movable Y-axis slide plate is arranged on the Y-axis slide rail, a Y-axis lead screw is connected to one side of the Y-axis slide plate, a roller is arranged on the Y-axis slide plate through a roller seat, the core mold device comprises a quick-locking nut, a core mold shaft, the other end of mandrel axle is located in the bearing frame of cover dress bearing, the bearing carries on spacingly through mandrel axle tip and nut threaded connection, be equipped with the packing ring between the bearing.

Further, the chuck and the roller are arranged oppositely.

Further, the core mold device is arranged in the middle of the roller.

Further, the core mold is arranged opposite to the chuck.

Further, the cutting tool comprises a tool rest, a tool handle and a forming blade, wherein one end of the tool rest is connected with a cylinder, and the other end of the tool rest is clamped with the forming blade through the tool handle.

Furthermore, the X-axis screw rod is connected with an X-axis servo motor through a belt pulley.

Furthermore, the Y-axis lead screw is connected with a Y-axis servo motor through a belt pulley.

Furthermore, the centers of the rollers are all located on the same horizontal plane, and the centers of the rollers are all located on the same vertical plane.

Furthermore, a plurality of cutting edges are arranged on the forming blade and are uniformly and symmetrically arranged along the center of the forming blade.

The utility model has the advantages that: the automatic processing machine has the advantages of simple and compact structure, automatic processing, improvement of processing quality, complete functions, labor saving, reduction of labor intensity and improvement of production efficiency; the main motion, the feeding motion and the tool changing are all simple and convenient to operate; the processing quality such as the shape, the surface roughness and the like of the workpiece is obviously improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a top view of a high precision small bore spinning machine according to an embodiment of the present invention;

fig. 2 is a side view of a high precision, small bore spinning machine according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a core mold device of a high-precision small-bore spinning machine according to an embodiment of the present invention;

fig. 4 is a schematic view of a cutter structure of a high-precision small-aperture spinning machine according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a workpiece of a high-precision small-aperture spinning machine according to an embodiment of the present invention;

fig. 6 is a schematic connection diagram of a core mold device of a high-precision small-bore spinning machine according to an embodiment of the present invention.

In the figure: 1. a machine platform; 2. a main shaft; 3. a chuck; 4. a roller; 5. a roller seat; 6. a Y-axis slide plate; 7. a cylinder; 8. an X-axis slide plate; 9. a tailstock; 10. an X-axis slide rail; 11. an X-axis lead screw; 12. an X-axis servomotor; 13. a Y-axis servomotor; 14. a Y-axis slide rail; 15. a Y-axis lead screw; 16. a tool holder; 17. a knife handle; 18. forming a blade; 19. a core mold device; 1901. a quick lock nut, 1902, a core mold; 1903. a mandrel shaft; 1904. a bearing seat; 1905. a bearing; 1906. a gasket; 1907. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

As shown in fig. 1-6, according to the embodiment of the present invention, a spindle 2 is connected to a machine table 1, a chuck 3 is connected to the spindle 2, the chuck clamps a workpiece during operation, and the spindle drives the chuck (workpiece) to rotate at a high speed;

an X-axis sliding plate 8 is connected with a machine table through two pairs of X-axis sliding rails 10 and an X-axis screw rod, an X-axis servo motor 12 is fixed on the machine table 1, the X-axis servo motor 12 is connected with an X-axis screw rod 11 through a synchronous belt and a synchronous belt pulley, a tailstock 9 is fixed above the X-axis sliding plate, an air cylinder 7 is connected above the tailstock 9, the air cylinder 7 is connected with a knife rest 16, the knife rest 16 is used for fixing a knife handle 17, and a forming blade 18 is fixed on the knife handle 17;

two Y-axis sliding plates 6 are connected with an X-axis sliding plate 8 through two pairs of Y-axis sliding rails 14 and Y-axis screw rods, a Y-axis servo motor 13 is fixed on the X-axis sliding plate 8, an X-axis servo motor 12 is connected with an X-axis screw rod 11 through a synchronous belt and a synchronous belt pulley, a roller 4 is connected with a roller seat 5 through a bearing, and the roller seat 5 is connected with the Y-axis sliding plate 6.

The core mold 1902 is connected to a core mold shaft 1903 by a quick lock nut 1901, and the core mold shaft 1903 is connected to the tailstock 9 by a bearing 1905 and a bearing housing 1904.

For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are explained in detail through specific use modes below.

1. Feeding: the workpiece is loaded into the main shaft chuck, and the main shaft chuck clamps the workpiece and then rotates at a high speed

2. Spinning: rotary extrusion forming of servo control spinning wheel for workpiece (workpiece inner core mould)

3. And (3) chamfering a plane: the air cylinder extends out of the control cutting tool to move to a corresponding position (limit), and the servo control cutting tool carries out turning on the opening part of the workpiece.

4. Returning and taking materials: after the retraction of the rear cylinder is finished, the cutting tool is lifted; servo returning; stopping the rotation of the main shaft; and loosening the chuck and taking out the workpiece.

The workpiece is characterized in that: the workpiece is in a metal tube shape, the opening part is reduced, and the end surface opening part is chamfered

The equipment is characterized in that:

1. a numerical control servo motor is adopted to control two extrusion wheels to synchronously spin a workpiece through a positive and negative screw rod pair, the two sides are simultaneously stressed, the stress is uniform, and the smoothness and the efficiency of spinning are improved;

2. the mouth part is chamfered by the forming cutter, the forming blade is provided with four cutting edges, the cutting edges can be replaced due to abrasion, and calibration is not needed after the forming cutter and the cutting edges are replaced;

3. when the equipment is used for spinning, the inner part of a workpiece is supported by placing a core die with a fixed size, so that the inner diameter of the opening part of the workpiece is stable and uniform in size, and debugging and calibration are not needed;

4. the device has lower requirement on the rigidity of the core mould and can process small-aperture workpieces.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a high accuracy aperture spinning-lathe, includes board (1) and mandrel device (19), its characterized in that, one side is equipped with main shaft (2) on board (1), main shaft (2) tip is equipped with chuck (3), X axle slide rail (10) have been laid to the opposite side on board (1), X axle slide (8) end connection has X axle lead screw (11), one side is equipped with tailstock (9) on X axle slide (8), tailstock (9) upper portion is connected with cutting tool through cylinder (7), Y axle slide rail (14) have been laid to the opposite side on X axle slide (8), be equipped with mobilizable Y axle slide (6) on Y axle slide rail (14), Y axle slide (6) one side is connected with Y axle lead screw (15), be equipped with on Y axle slide (6) and be provided with gyro wheel (4) through gyro wheel seat (5), tailstock (9) side is located in mandrel device (19), mandrel device (19) is including fast lock nut (1901), mandrel (1902), mandrel axle (1903), bearing frame (1904), bearing (1905), packing ring (1906) and nut (1907), mandrel (1902) one end joint is in the one end of mandrel axle (1903), mandrel (1902) and mandrel axle (1903) are through fast lock nut (1901) threaded connection, the other end of mandrel axle (1903) is located and is adorned in bearing frame (1904) of bearing (1905), bearing (1905) carry on spacingly through mandrel axle (1903) tip and nut (1907) threaded connection, be equipped with packing ring (1906) between bearing (1905).

2. A high precision small bore spinning machine according to claim 1, characterized in that the clamping head (3) and the roller (4) are oppositely arranged.

3. A spinning machine with high precision and small bore diameter according to claim 1, characterized in that the core mould means (19) is arranged in the middle of the roller (4).

4. A spinning machine with high precision and small bore diameter according to claim 1, characterized in that the core mold (1902) is disposed opposite to the chuck (3).

5. A high-precision small-bore spinning machine according to claim 1, characterized in that the cutting tool comprises a tool rest (16), a tool shank (17) and a forming blade (18), one end of the tool rest (16) is connected with the cylinder (7), and the other end of the tool rest (16) is clamped with the forming blade (18) through the tool shank (17).

6. A high precision small bore spinning machine according to claim 1, characterized in that the X-axis lead screw (11) is connected with an X-axis servo motor (12) through a belt pulley.

7. A high precision small bore spinning machine according to claim 1, characterized in that the Y-axis screw (15) is connected with a Y-axis servo motor (13) through a belt pulley.

8. A spinning machine with high precision and small aperture as claimed in claim 1, characterized in that the centers of the rollers (4) are all on the same horizontal plane, and the centers of the rollers (4) are all on the same vertical plane.

9. A spinning machine with high precision and small aperture according to claim 5 is characterized in that the forming blade (18) is provided with a plurality of cutting edges which are symmetrical and uniform along the center of the forming blade (18).