CN212419681U

CN212419681U - Structure of radial automatic tool retraction device for inner hole boring

Info

Publication number: CN212419681U
Application number: CN202021127613.9U
Authority: CN
Inventors: 李滨; 刘天琪; 刘文翰宸; 吴佩聪; 刘雅妮
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-01-29
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a structure of a radial automatic tool retracting device for inner hole boring, which belongs to the technical field of machinery industry. The utility model is composed of a boring spindle, a boring bar, a piston rod, a pin shaft, a sliding wedge, a gland, a spring, an end cap, a boring head, a locking screw, a slider tool holder, a guide part of the boring bar, a supporting slide plate, etc. composition. The boring spindle is supported and installed on the rolling bearing, and is driven by the motor to drive the boring spindle to rotate through the belt drive; the boring bar is positioned and installed in the boring bar spindle through the taper surface and the end face key, and the guide part of the boring bar is supported and installed in the inner hole of the support slide plate; The slider tool holder is installed in the radial hole of the boring bar and can slide along the radial hole; the slider tool holder is equipped with a gland, a spring, an end cover, a boring head, and a locking screw; the piston rod and the sliding wedge are installed The block is connected by a pin and installed in the boring bar; the piston rod drives the sliding wedge to move axially under the action of the oil cylinder and the return spring, and the axial movement of the sliding wedge drives the slider tool holder to slide in the radial hole of the boring bar. , to achieve radial automatic tool retraction for inner hole boring.

Description

Radial automatic tool retracting device structure for inner hole boring

Technical Field

The utility model relates to a radial automatic tool retracting device structure of hole boring belongs to mechanical industry technical field.

Background

In the traditional inner hole boring process, when the inner hole boring is finished and the cutter shaft is withdrawn from a part, the cutter point of the cutter is contacted with the inner surface of the part due to certain tolerance of the inner hole of the part, so that the inner surface of the part is scratched, and the surface precision of the inner hole boring is influenced. At present, a radial automatic tool retracting device structure is configured for boring and machining an inner hole, and the problem that the machined surface is not damaged by radial automatic tool retracting after boring and machining the inner hole is effectively solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a radial automatic tool retracting device structure of inner hole boring processing configuration has effectively solved the difficult problem that the machined surface has not been destroyed to the radial automatic tool retracting after the hole boring.

The utility model adopts the technical proposal that: a radial automatic tool retracting device for boring an inner hole comprises a boring spindle, a boring rod, a piston pull rod, a pin shaft, a sliding wedge block, a gland, a spring, an end cover, a boring tool bit, a locking screw, a sliding block tool holder, a boring rod guide part, a supporting sliding plate and the like. The boring spindle is supported and mounted on a rolling bearing and is driven by a motor to drive the boring spindle to rotate through belt transmission; the boring bar is positioned and installed in the boring bar main shaft through a conical surface and an end face key, and the guide part of the boring bar is supported and installed in an inner hole of the supporting sliding plate; the slide block tool holder is arranged in a radial hole of the boring rod and can slide along the radial hole; a gland, a spring, an end cover, a boring cutter head and a locking screw are arranged in the tool holder of the sliding block; the piston pull rod is connected with the sliding wedge block through a pin shaft and is arranged in the boring rod; the piston pull rod drives the sliding wedge block to axially move under the action of the oil cylinder and the return spring, and the sliding wedge block axially moves to drive the sliding block cutter to be clamped in a radial hole of the boring rod to slidably move, so that radial automatic cutter withdrawal for boring the inner hole is realized.

The utility model has the advantages that: the problem that the machined surface is not damaged by radial automatic tool withdrawal after inner hole boring is effectively solved.

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.

In the figure: the boring spindle comprises a boring spindle 1, a boring rod 2, a piston pull rod 3, a pin shaft 4, a sliding wedge block 5, a gland 6, a spring 7, an end cover 8, a boring cutter head 9, a locking screw 10, a slider tool holder 11, a boring rod guide part 12 and a supporting sliding plate 13.

Detailed Description

Embodiments of the invention are described in further detail below with reference to the accompanying drawings:

[ example 1 ]

The inner hole boring radial automatic tool retracting device is composed of a boring main shaft 1, a boring bar 2, a piston pull rod 3, a pin shaft 4, a sliding wedge block 5, a gland 6, a spring 7, an end cover 8, a boring tool bit 9, a locking screw 10, a slide block tool holder 11, a boring bar guiding part 12, a supporting sliding plate 13 and the like. The boring spindle 1 is supported and mounted on a rolling bearing and is driven by a motor to drive the boring spindle 1 to rotate through belt transmission; the boring bar 2 is positioned and installed in the boring bar main shaft 1 through a conical surface and an end surface key, and the boring bar guide part 12 is supported and installed in an inner hole of a supporting sliding plate 13; the slide block tool holder 11 is arranged in a radial hole of the boring rod 2 and can slide along the radial hole; a gland 6, a spring 7, an end cover 8, a boring cutter head 9 and a locking screw 10 are arranged in the slider tool holder 11; the piston pull rod 3 is connected with the sliding wedge block 5 through a pin shaft 4 and is arranged in the boring bar 2; the piston pull rod 3 drives the sliding wedge block 5 to axially move under the action of an oil cylinder and a reset spring (not shown in a structural diagram), and the sliding wedge block 5 axially moves to drive the sliding block tool holder 11 to slidably move in a radial hole of the boring rod 2, so that radial automatic tool withdrawal for boring the inner hole is realized.

The inner hole boring radial automatic tool retracting device effectively solves the problem that the machined surface is not damaged by radial automatic tool retracting after inner hole boring.

Claims

1. A structure of an inner hole boring radial automatic tool retracting device, characterized in that: a boring spindle (1), a boring bar (2), a piston rod (3), a pin (4), a sliding wedge ( 5), gland (6), spring (7), end cover (8), boring head (9), locking screw (10), slider holder (11), boring bar guide part (12), The boring spindle (1) is supported and installed on the rolling bearing and is driven by the motor to drive the boring spindle (1) to rotate through the belt drive; the boring bar (2) is positioned and installed on the tapered surface and the end face key. The boring bar main shaft (1) and the boring bar guide part (12) are supported and installed in the inner hole of the support slide plate (13); the slider tool holder (11) is installed in the radial hole of the boring bar (2) and can be arranged in the radial direction The hole slides and moves; the slider holder (11) is equipped with a gland (6), a spring (7), an end cover (8), a boring head (9), and a locking screw (10); the piston rod (3) It is connected with the sliding wedge (5) through the pin (4) and installed in the boring bar (2); the piston rod (3) can drive the sliding wedge (5) to move axially, and the sliding wedge (5) moves axially The slider tool holder (11) is driven to slide and move in the radial hole of the boring bar (2), so as to realize radial automatic tool retraction for inner hole boring.