CN211331471U - Novel boring numerical control motor-driven radial feed structure - Google Patents

Abstract

The utility model discloses a novel boring numerical control machine-driven radial feed structure, belonging to the technical field of machining; the push rod shaft is pushed through a push rod which is arranged in the boring rod and is controlled by a servo motor in a closed-loop mode, a bearing on the shaft is driven to perform axial feeding, the bearing is in contact with the inclined surface of the sliding seat, the sliding seat is controlled to move in the radial direction, the sliding seat is connected with the tool holder through a key, and finally micro-feeding is achieved; the defects of low radial feed precision, complicated tool alignment and the like are overcome, the tool setting time is shortened, and the precision and the machining efficiency are improved.

Description

Novel boring numerical control motor-driven radial feed structure

Technical Field

The utility model relates to a novel dynamic radial feed structure of bore hole numerical control belongs to machining technical field.

Background

The radial feed during large-scale boring has the advantages of increasing the diameter range of the boring, being easy to operate and the like, but has the defects of low feed precision, complex cutter alignment and the like, directly influences the precision of a workpiece after being machined, prolongs the machining time and reduces the machining efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies that prior art exists, the utility model provides a novel dynamic radial feed structure of bore hole numerical control through installing the inside push rod by servo motor closed-loop control of boring bar, promotes the push rod axle, drives the epaxial bearing of axle and is the axial feed, and bearing and slide inclined plane contact control slide radial movement, slide and cutter holder pass through the key hookup, finally reach the micro-feed.

The utility model provides a technical scheme that its technical problem adopted is: a novel boring numerical control machine-driven radial feed structure comprises a tool rest body, step surfaces are arranged on two sides of the tool rest body, the upper end surface of the right step surface of the tool rest body is connected with a boring rod through a bolt, a cylindrical counter bore is arranged on the lower end surface of the right step surface and penetrates through the lower end surface of the left step surface, a dovetail is arranged on the upper end surface of the left step surface of the tool rest body, a slide seat is L-shaped, a dovetail boss is arranged on the inner side surface of the upper end of the slide seat, the tool rest body is connected with a slide seat through a dovetail structure, the slide seat can slide along the tool rest body through the dovetail structure, the upper surface of the bottom surface of the slide seat is an inclined plane, a hidden hole is formed in the lower surface of the bottom surface of the slide seat, a disc spring is arranged in the hidden hole, a screw shaft is arranged in the disc spring, the screw shaft is fixed on, the tool rest body is internally provided with a flange sleeve which is a T-shaped sleeve, the flange surface of the flange sleeve is fixed on the lower end surface of the left stepped surface of the tool rest body through a bolt, the flange sleeve is arranged in a cylindrical countersunk head hole of the tool rest body, a pressure spring is arranged outside the flange sleeve, a push rod shaft is arranged in the flange sleeve, the center of the front end surface of the push rod shaft is provided with a square groove, through holes are arranged on two sides of the square groove, the square groove of the push rod shaft is connected with a bearing through a pin shaft, the bearing is jointed with the inclined surface of a sliding seat, the tail end of the push rod shaft is provided with a convex shaft, the outer wall of the convex shaft is provided with a baffle ring, the end surface of the convex shaft is provided with a countersunk hole, an oil cup is arranged in the countersunk head, the side wall of the push rod shaft is provided with a blind hole communicated with the blind hole, the oil in the oil cup flows to the outer side through the inner part of the push, one end of a pressure spring is attached to the bottom surface of a cylindrical counter bore of the tool holder body, the other end of the pressure spring is attached to the inner end surface of a protruding shaft of a push rod shaft, the pressure spring and an adjusting pad keep the push rod shaft in a reset state, a push rod is arranged in a boring rod, the front end of the push rod is provided with a groove, the tail end of the push rod shaft and the front end of the push rod are fixed in a matched mode through a jackscrew and the push rod groove, the push rod is driven by a servo motor to move in the radial direction in the boring rod, the servo motor drives a ball screw to rotate through a reduction gearbox, a nut on the.

The utility model has the advantages that: the utility model relates to a novel dynamic radial feed structure of bore hole numerical control feeds servo motor closed-loop control's push rod axial, changes the inclined plane through the slide into radial motion, has solved that radial feed precision is low, alignment cutter shortcoming such as loaded down with trivial details, shortens the tool setting time, has promoted precision and machining efficiency.

Drawings

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Fig. 1 is a schematic structural diagram of the present invention.

Reference numbers in the figures:

1. the tool comprises a push rod, 2, a push rod shaft, 3, a pressure spring, 4, a bearing, 5, a sliding seat, 6, a disc spring, 7, a pin key, 8, a tool holder, 9, a boring rod, 10, a tool holder body, 11, an oil cup, 12, an adjusting pad, 13, a top plate, 14, a flange sleeve, 15 and a screw shaft.

Detailed Description

As shown in figure 1, a novel boring numerical control machine-driven radial feed structure, stepped surfaces are arranged on two sides of a tool holder body 10, the upper end surface of the right stepped surface of the tool holder body 10 is connected with a boring rod 9 through a bolt, the lower end surface of the right stepped surface is provided with a cylindrical counter bore which penetrates through the lower end surface of the left stepped surface, a dovetail groove is arranged on the upper end surface of the left stepped surface of the tool holder body 10, a sliding seat 5 is L-shaped, a dovetail boss is arranged on the inner side surface of the upper end of the sliding seat 5, the tool holder body 10 is connected with a sliding seat 5 through a dovetail structure, the sliding seat 5 can slide along the tool holder body 10 through the dovetail structure, the upper surface of the bottom surface of the sliding seat 5 is an inclined surface, a blind hole is arranged on the lower surface of the bottom surface of the sliding seat 5, a disc spring 6 is arranged in the blind hole, a wire shaft 15 is arranged in the disc spring 6, a pin key 7 is arranged in a cross groove between the sliding seat 5 and the cutter holder 8, the pin key 7 ensures that the sliding seat 5 and the cutter holder 8 do not shift, a flange sleeve 14 is arranged in the cutter holder body 10, the flange sleeve 14 is a T-shaped sleeve, the flange surface of the flange sleeve 14 is fixed on the lower end surface of the left step surface of the cutter holder body 10 through bolts, the flange sleeve 14 is arranged in a cylindrical countersunk hole of the cutter holder body 10, a pressure spring 3 is arranged outside the flange sleeve 14, a push rod shaft 2 is arranged in the flange sleeve 14, a square groove is arranged at the center of the front end surface of the push rod shaft 2, through holes are arranged at two sides of the square groove, a bearing 4 is connected with the square groove of the push rod shaft 2 through a pin shaft, the bearing 4 is attached to the inclined surface of the sliding seat 5, a convex shaft is arranged at the tail end of the push rod shaft 2, a baffle ring is arranged on the outer wall of the convex shaft, a countersunk hole is arranged, the side wall of the convex shaft is provided with a threaded hole, the outer wall of the convex shaft of the push rod shaft 2 is provided with a regulating pad 12, the regulating pad 12 is of a circular plate type, the outer wall of a baffle ring of the push rod shaft 2 is jointed with the inner end surface of the regulating pad 12, the regulating pad 12 is fixed on the lower end surface of a right stepped surface of the tool rest body 10 through a bolt, one end of a pressure spring 3 is jointed with the bottom surface of a cylindrical counter bore of the tool rest body 10, the other end of the pressure spring 3 is jointed with the inner end surface of the convex shaft of the push rod shaft 2, the pressure spring 3 and the regulating pad 12 keep the push rod shaft 2 in a reset state, a push rod 1 is arranged in the boring rod 9, the front end of the, the boring bar 9 moves radially, the servo motor drives the ball screw to rotate through the reduction box, the nut on the ball screw moves, and the nut is provided with a connecting piece connected with the push rod 1 to drive the nut and the push rod 1 to move synchronously.

The push rod 1 pushes the push rod shaft 2 to compress the compression spring 3 to move axially in the flange sleeve 14, the bearing 4 moves on the inclined plane of the sliding seat 5 to force the sliding seat 5 to compress the disc spring 6 to move downwards along the tool holder body 10, and then the tool holder 8 and a tool are driven to move downwards, so that micro-feed is realized, and the minimum feed amount is 0.003 mm.

Claims (1)

1. The utility model provides a novel dynamic radial feed structure of bore hole numerical control, characterized by: stepped surfaces are arranged on two sides of a tool rest body (10), the upper end surface of the right stepped surface of the tool rest body (10) is connected with a boring rod (9) through a bolt, the lower end surface of the right stepped surface is provided with a cylindrical counter bore which penetrates through the lower end surface of the left stepped surface, the upper end surface of the left stepped surface of the tool rest body (10) is provided with a dovetail groove, a sliding seat (5) is L-shaped, the inner side surface of the upper end of the sliding seat (5) is provided with a dovetail boss, the tool rest body (10) is connected with the sliding seat (5) through a dovetail structure, the upper surface of the bottom surface of the sliding seat (5) is an inclined plane, the lower surface of the bottom surface of the sliding seat (5) is provided with a blind hole, a disc spring (6) is arranged in the blind hole, a screw shaft (15) is arranged in the disc spring (6), the screw shaft (15) is fixed on a top plate (13), the, a pin key (7) is arranged in a cross groove of the sliding seat (5) and the tool holder (8), a flange sleeve (14) is arranged in the tool holder body (10), the flange sleeve (14) is a T-shaped sleeve, the flange surface of the flange sleeve (14) is fixed on the lower end surface of the left stepped surface of the tool holder body (10) through a bolt, the flange sleeve (14) is arranged in a cylindrical countersunk hole of the tool holder body (10), a pressure spring (3) is arranged outside the flange sleeve (14), a push rod shaft (2) is arranged in the flange sleeve (14), a square groove is arranged at the center of the front end surface of the push rod shaft (2), through holes are arranged on two sides of the square groove, a bearing (4) is connected in the square groove of the push rod shaft (2) through a pin shaft, the bearing (4) is attached to the inclined surface of the sliding seat (5), a convex shaft is arranged at the tail end of the push rod shaft (2), a baffle ring is arranged on the outer wall of the convex, the side wall of the protruding shaft is provided with a threaded hole, the outer wall of the protruding shaft of the push rod shaft (2) is provided with a regulating pad (12), the regulating pad (12) is of a circular plate type, the outer wall of the blocking ring of the push rod shaft (2) is attached to the inner end face of the regulating pad (12), the regulating pad (12) is fixed to the lower end face of the right stepped surface of the tool rest body (10) through a bolt, one end of a pressure spring (3) is attached to the bottom face of a cylindrical counter bore of the tool rest body (10), the other end of the pressure spring (3) is attached to the inner end face of the protruding shaft of the push rod shaft (2), a push rod (1) is arranged in the boring rod (9), the front end of the push rod (1) is provided with a groove.

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