CN212351864U

CN212351864U - Extracting tool of machining center main shaft blind rivet

Info

Publication number: CN212351864U
Application number: CN202021559540.0U
Authority: CN
Inventors: 梁远
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-01-15
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a extracting tool of machining center main shaft blind rivet relates to the main shaft blind rivet and dismantles, and it is the big technical problem of current dismantlement mode intensity of labour to mainly solve, extracting tool includes clamp plate, torsion bar, and the one end of torsion bar is equipped with the hexagonal head with main shaft blind rivet looks adaptation, and other end activity is passed the clamp plate and is equipped with twists the portion of changing, and torsion bar periphery between hexagonal head and the clamp plate is equipped with the boss, be equipped with between boss and the clamp plate with the elastic component of the two contact, be equipped with the screw rod that is used for connecting the main shaft flange on the clamp plate of torsion bar both sides respectively, and the one end activity of screw rod is passed the. The utility model discloses a with screw rod locking at the main shaft flange, utilize lever principle lifting clamp plate's both ends in proper order and the nut that the precession corresponds, make the clamp plate through the elastic component with the hexagonal head top of torsion bar in going into the main shaft blind rivet realize dismantling, can reduce intensity of labour, use manpower sparingly, safe in utilization.

Description

Extracting tool of machining center main shaft blind rivet

Technical Field

The utility model relates to a main shaft blind rivet dismantles, and more specifically says that it relates to a extracting tool of machining center main shaft blind rivet.

Background

In the maintenance of a machining center, the main shaft blind rivet is required to be disassembled very often, and if the tool pulling force of the main shaft is small, the blind rivet is required to be disassembled and taken out of a main shaft broach mechanism for maintenance; when the machined product has vibration lines, ovality, ultra-poor dimensional precision, fast tool abrasion, abnormal sound, air leakage, liquid leakage, oil leakage and the like, the main shaft is required to be disassembled to overhaul parts on the main shaft. Before the parts on the main shaft are disassembled, the blind rivet must be disassembled first, and the clamping jaw must be taken out. The main shaft upper blind rivet is an internal thread connection blind rivet and is disassembled or assembled by adopting an inner hexagonal wrench. The main shaft high-pressure inner cooling pipe joint A penetrates through the blind rivet hexagon socket head B through compression spring force, extends out of the blind rivet hexagon socket head B, has certain spring force, and directly forms a compression seal with an inner cooling hole in the tool holder to transmit cooling media to the tool, as shown in figure 1. When the blind rivet is disassembled, the inner hexagonal wrench needs to overcome the spring force of the high-pressure inner cooling pipe of the main shaft to compress the high-pressure inner cooling pipe on the main shaft, and the inner hexagonal wrench can extend into the hexagonal hole of the blind rivet to be screwed out.

When the blind rivet is disassembled, 1 person is required to overcome the spring force of the high-pressure inner cooling pipe of the main shaft, the inner hexagonal wrench is forcibly pushed into the blind rivet, and the 1 person twists the inner hexagonal wrench with great force (more than 180 N.m). In the whole process of disassembling the blind rivet, the blind rivet needs more manpower, the time is long, the labor intensity is high, the positioning of the inner hexagonal wrench is inaccurate when stressed, the inner hexagonal wrench is stressed by spring force, the inner hexagonal wrench stretches into the blind rivet to be affected by elastic fluctuation, the blind rivet stretches into the blind rivet hexagonal hole deeply and shallowly, the blind rivet is not noticed slightly, the blind rivet head with the easily-twisted sliding angle causes larger faults, or the slip wrench causes personal safety accidents.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, the utility model aims at providing a extracting tool of machining center main shaft blind rivet that can reduce intensity of labour.

The technical scheme of the utility model is that: a dismounting tool for a main shaft blind rivet of a machining center comprises a pressing plate and a torsion bar, wherein a hexagonal head matched with the main shaft blind rivet is arranged at one end of the torsion bar, the other end of the torsion bar movably penetrates through the pressing plate and is provided with a twisting part, a boss is arranged on the periphery of the torsion bar between the hexagonal head and the pressing plate, an elastic part in contact with the boss and the pressing plate is arranged between the boss and the pressing plate, screw rods used for connecting a main shaft flange are respectively arranged on the pressing plates on two sides of the torsion bar, and one end of each screw rod movably penetrates through the pressing plate and is.

As a further improvement, the boss is an annular boss, and the elastic part is a spring sleeved on the periphery of the torsion bar.

Furthermore, the pressing plate is provided with a plane bearing sleeved on the periphery of the torsion bar, the torsion bar is in clearance fit with an inner hole of the plane bearing, and the elastic part is in contact with the plane bearing.

Furthermore, clearance fit is formed between the torsion bar and the pressing plate.

Further, the elastic force of the elastic piece is larger than the spring force of the spindle high-pressure inner cooling pipe.

Furthermore, the screw rod is in clearance fit with the pressure plate.

Furthermore, a handle is arranged on one side of the pressing plate, and the handle, the torsion bar and the two screw rods are positioned on the same straight line.

Advantageous effects

Compared with the prior art, the utility model, the advantage that has does: the utility model discloses a with screw rod locking at the main shaft flange, utilize lever principle lifting clamp plate's both ends in proper order and the nut that the precession corresponds, make the clamp plate through the elastic component with the hexagonal head top of torsion bar in going into the main shaft blind rivet realize dismantling, can reduce intensity of labour, use manpower sparingly, safe in utilization.

Drawings

FIG. 1 is a schematic structural view of a spindle;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic bottom view of the present invention;

fig. 4 is a schematic diagram of the practical application of the present invention.

Wherein: 1-pressing plate, 2-torsion bar, 3-main shaft rivet, 4-hexagonal head, 5-twisting part, 6-boss, 7-elastic part, 8-main shaft flange, 9-screw, 10-nut, 11-plane bearing, 12-handle and 13-main shaft high-pressure inner cooling pipe.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 2-4, a tool for removing a main shaft blind rivet in a machining center comprises a pressing plate 1 and a torsion bar 2, wherein one end of the torsion bar 2 is provided with a hexagonal head 4 matched with the main shaft blind rivet 3, the other end of the torsion bar movably penetrates through the pressing plate 1 and is provided with a twisting part 5, a boss 6 is arranged on the periphery of the torsion bar 2 between the hexagonal head 4 and the pressing plate 1, an elastic part 7 in contact with the boss 6 and the pressing plate 1 is arranged between the boss 6 and the pressing plate 1, screw rods 9 used for connecting a main shaft flange 8 are respectively arranged on the pressing plate 1 on two sides of the torsion bar 2, and one end of each screw rod. In the present embodiment, the screwing portion 5 is a hexagonal head.

In this embodiment, the boss 6 is an annular boss, and the elastic member 7 is a spring sleeved on the outer periphery of the torsion bar 2. The pressing plate 1 is provided with a plane bearing 11 which is sleeved on the periphery of the torsion bar 2, the torsion bar 2 is in clearance fit with an inner hole of the plane bearing 11, and the elastic part 7 is in contact with the plane bearing 11. The friction resistance between the spring and the pressing plate 1 can be reduced by utilizing the plane bearing, so that the torsion bar 2 is more labor-saving and more flexible to rotate. The torsion bar 2 is in clearance fit with the pressure plate 1, and the torsion bar 2 can move freely in the axial direction.

The elastic force of the elastic piece 7 is larger than the spring force of the spindle high-pressure inner cooling pipe 13. The screw 9 is in clearance fit with the pressure plate 1, and the screw 9 is a double-head screw. One side of the pressure plate 1 is provided with a handle 12, and the handle 12, the torsion bar 2 and the two screws 9 are positioned on the same straight line.

The working principle is as follows:

as shown in fig. 4, two screws 9 are locked in two screw holes of the spindle flange 8; the elastic piece 7 and the pressing plate 1 are sleeved into the torsion bar 2, the torsion bar 2 extends into the spindle, when the hexagonal head 4 is in contact with the spindle high-pressure inner cooling pipe 13, the two nuts 10 are screwed into the screw 9, and the pressing plate 1 is driven by the nuts 10 to move upwards; when the resistance is felt to screw in the nut 10, the handle 12 is pressed down, one end of the pressing plate 1 close to the handle 12 descends and the other end ascends by utilizing the lever principle, and the nut 10 at the ascending end is screwed in; then the handle 12 is lifted, one end of the pressure plate 1 close to the handle 12 rises, the other end falls, and the nut 10 at the rising end is screwed in at the moment; so operate repeatedly, interior cold tube 13 of main shaft high pressure is jacked up to the hexagonal head 4 of torsion bar 2, and get into in the main shaft blind rivet 3 completely, twist torsion bar 2 through twisting the portion of turning 5 and realize dismantling main shaft blind rivet 3, can reduce intensity of labour, use manpower sparingly, the elasticity of elastic component 7 is greater than the spring force of interior cold tube 13 of main shaft high pressure in the dismantlement process, make hexagonal head 4 get into in the main shaft blind rivet 3 completely all the time, can prevent to turn round the smooth angle blind rivet head and arouse bigger trouble, perhaps the slippage wrench arouses personal safety accident, safety in utilization.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. The utility model provides a extracting tool of machining center main shaft blind rivet, its characterized in that includes clamp plate (1), torsion bar (2), the one end of torsion bar (2) is equipped with hexagonal head (4) with main shaft blind rivet (3) looks adaptation, and the other end activity passes clamp plate (1) is equipped with twists portion (5), torsion bar (2) periphery between hexagonal head (4) and clamp plate (1) is equipped with boss (6), be equipped with between boss (6) and clamp plate (1) with elastic component (7) of the two contact, be equipped with respectively on clamp plate (1) of torsion bar (2) both sides and be used for connecting screw rod (9) of main shaft flange (8), the one end activity of screw rod (9) passes clamp plate (1) is equipped with nut (10).

2. The tool for removing a blind rivet of a machining center spindle according to claim 1, characterized in that the boss (6) is an annular boss, and the elastic member (7) is a spring sleeved on the periphery of the torsion bar (2).

3. The tool for disassembling a blind rivet of a main shaft of a machining center according to claim 2, characterized in that the pressure plate (1) is provided with a flat bearing (11) sleeved on the periphery of the torsion bar (2), the torsion bar (2) and an inner hole of the flat bearing (11) are in clearance fit, and the elastic member (7) is in contact with the flat bearing (11).

4. A tool for removing a blind rivet in a machining centre spindle according to claim 1, characterised in that the torsion bar (2) is a clearance fit with the pressure plate (1).

5. The tool for removing a blind rivet of a main shaft of a machining center according to claim 1, characterized in that the elastic force of the elastic member (7) is larger than the spring force of the high-pressure inner cooling tube (13) of the main shaft.

6. The tool for removing the blind rivet of the main shaft of the machining center according to claim 1, characterized in that the screw (9) is in clearance fit with the pressure plate (1).

7. A tool for removing a blind rivet in a machining centre spindle according to any one of claims 1 to 6, characterised in that a handle (12) is provided on one side of the pressure plate (1), said handle (12) being aligned with the torsion bar (2) and the two threaded rods (9).