CN217832974U

CN217832974U - Inner hole machining device suitable for long cylinder parts

Info

Publication number: CN217832974U
Application number: CN202222109016.9U
Authority: CN
Inventors: 陈文云; 俞凌云; 王辉宇
Original assignee: China Shipbuilding NDRI Engineering Co Ltd
Current assignee: China Shipbuilding NDRI Engineering Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-18
Anticipated expiration: 2032-08-11

Abstract

The utility model provides a hole processingequipment suitable for long section of thick bamboo class part, a serial communication port, include: the flexible connecting mechanism is connected between a machine tool spindle and a workpiece, and the limiting mechanism is used for limiting the workpiece; the flexible connecting mechanism comprises a universal joint input shaft, a universal joint core, a universal joint output shaft, a universal joint support screw, a spring, a gland and a compression screw; one end of the universal joint input shaft is connected with a main shaft of the machine tool, and the universal joint core is arranged in a first groove of the universal joint input shaft and is also positioned in a second groove of the universal joint output shaft; the universal joint support screws are arranged in the four screw holes of the first groove and the second groove, and the universal joint core and the universal joint support screws are in rotatable contact; the gland is installed at the head end of a workpiece through a compression screw, an extension shaft of the universal joint output shaft is inserted into a central through hole of the gland to transmit torque, and the spring sleeve is sleeved on the periphery of the extension shaft. The utility model discloses can effectively keep apart the power vibration of lathe and rotate the interference influence that brings to the work piece.

Description

Inner hole machining device suitable for long cylinder parts

Technical Field

The utility model relates to the technical field of machining, in particular to hole processingequipment suitable for long section of thick bamboo class part.

Background

The inner hole machining is usually carried out by adopting a grinding machine, clamping jaws are used for clamping a machine tool spindle and a workpiece in a rigid connection mode, the machine tool spindle is a rotary power shaft, the clamping jaws clamp the outer wall of one end of the workpiece to drive the workpiece to rotate, and the workpiece is influenced by the vibration of the machine tool spindle in the machining process. The inner hole of a long cylinder part is machined by adopting a general inner hole machining grinding machine, the cylindricity and the roughness of the inner hole are difficult to meet the high precision requirement all the time due to the influence of the vibration of a machine tool main shaft, and some high-precision inner hole machining grinding machines on the market are not only complex in structure, but also expensive in equipment, and the cost is difficult to bear for general factories. In view of the above, there is a need for an inner hole machining device that can meet the requirement of high grinding precision for machining inner holes of long cylindrical parts, has a simple structure, and can be applied to a common mechanical grinding machine.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve above-mentioned problem and go on, aim at provides an inner hole processingequipment suitable for long section of thick bamboo class part.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a hole processingequipment suitable for long section of thick bamboo class part, a serial communication port, include: the flexible connecting mechanism is connected between the machine tool spindle and the workpiece, and the limiting mechanism is used for limiting the workpiece; the flexible connecting mechanism comprises a universal joint input shaft, a universal joint core, a universal joint output shaft, a universal joint support screw, a spring, a gland and a compression screw; one end of the universal joint input shaft is fixedly connected with a main shaft of a machine tool, the other end of the universal joint input shaft is provided with a first groove, and the groove walls on two sides of the first groove are symmetrically provided with screw holes; one end of the universal joint output shaft is provided with a second groove, the groove walls on two sides of the second groove are symmetrically provided with screw holes, and the other end of the universal joint output shaft is provided with an extension shaft; the universal joint input shaft is arranged in a vertical state according to the groove wall of the first groove, the universal joint output shaft is arranged in a horizontal state according to the groove wall of the second groove, and the universal joint core is arranged in the first groove and is positioned in the second groove at the same time; the universal joint core is in a spherical structure, four universal joint support screws are arranged in four screw holes of the first groove and the second groove correspondingly through threaded connection, and the universal joint core is limited in a clearance space formed by the end parts of the four universal joint support screws and is in rotatable contact with the universal joint support screws; the gland passes through housing screw to be installed at the head end of work piece, and gland central through hole has been seted up at the middle part of gland, extends axle and grafting with gland central through hole, and the periphery at the extension axle is established to the spring housing.

Further, the utility model provides an in hole processingequipment suitable for long section of thick bamboo class part can also have such characteristic: the central through hole of the gland is any one of a triangular hole, a square hole, a triangular star-shaped hole, a rectangular star-shaped hole and a pentagonal star-shaped hole; the shape of the extension shaft is matched with that of the central through hole of the gland.

Further, the utility model provides an in the hole processingequipment suitable for long section of thick bamboo class part, can also have such characteristic: the limiting mechanism comprises two center frames and a stop block; the center frame is provided with a center ring, the outer wall of the center ring is connected with a plurality of extension frames, the extension frames are provided with through screw holes, the through screw holes are through the inner wall of the center ring, a plurality of adjusting bolts are correspondingly arranged in the through screw holes through threaded connection, and the end parts of the adjusting bolts extend into the inner side of the center ring; the workpiece is positioned in the central rings of the two central frames and limited in a gap space formed by the end parts of the plurality of adjusting bolts, and the workpiece and the adjusting bolts form rotatable contact; the stop block is fixed on a center frame positioned at the tail end of the workpiece and is contacted with the tail end face of the workpiece.

Further, the utility model provides an in the hole processingequipment suitable for long section of thick bamboo class part, can also have such characteristic: wherein, every centre frame is equipped with three extension frame, constitutes 120 degrees contained angles between the centre of a circle of adjacent extension frame and centre ring.

The utility model discloses an effect and effect:

the utility model discloses a hole processingequipment suitable for long section of thick bamboo class part adopts flexible connection structure to transmit lathe power moment of torsion and drives the work piece rotation, the work piece is spacing on double-center frame, the gland is withstood by the spring to the one end of work piece, the work piece other end leans on the dog all the time, when the work piece processing hole, the power vibration that can effectively keep apart the lathe rotates the interference influence of bringing to the work piece, a structure is simple, strong maneuverability has, safety and reliability, can install on conventional grinding machine lathe, the grinding precision of long section of thick bamboo class work piece hole processing has been promoted.

Drawings

Fig. 1 is a front view of an inner hole machining device suitable for long cylinder parts in an embodiment of the present invention;

fig. 2 is a view of the inner hole machining device suitable for long cylinder parts in the embodiment of the present invention, which is shown in fig. 1 in the direction of C;

fig. 3 is a sectional view of a section B-B shown in fig. 1 of an inner hole machining device suitable for long cylinder parts according to an embodiment of the present invention;

fig. 4 is a three-dimensional perspective view of the inner hole machining device suitable for long cylinder parts in the embodiment of the present invention.

Reference numerals are as follows: a universal joint input shaft 1; a main shaft mounting hole 11; a first groove 12; a gimbal core 2; a universal joint output shaft 3; a second groove 31; an extension shaft 32; gimbal bracket screws 4; a spring 5; a gland 6; a gland central through hole 61; a compression screw 7; a center frame 8; a center ring 81; an extension frame 82; a support frame 83; an adjustment bolt 84; a stopper 9; a bolt 10.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically illustrated with reference to the accompanying drawings.

< example >

The embodiment provides an inner hole machining device suitable for long cylinder parts, which is installed on a machine tool body of a conventional grinding machine and is used as a related structure for clamping and limiting a workpiece when the long cylinder parts (hereinafter referred to as workpieces) are machined in inner holes. Other structures on the grinding machine which are not described in the following text are regarded as corresponding structures in the grinding machine in the prior art, and are not described again.

Referring to fig. 1 to 4, the inner hole machining device for long cylinder type parts of the present embodiment includes: a flexible connecting mechanism connected between a machine tool spindle (not shown) and the workpiece 100, and a limiting mechanism for limiting the workpiece 100.

The flexible connection mechanism comprises a universal joint input shaft 1, a universal joint core 2, a universal joint output shaft 3, a universal joint support screw 4, a spring 5, a gland 6 and a compression screw 7.

One end of the universal joint input shaft 1 is provided with a main shaft mounting hole 11 for being mounted in a matched mode with a machine tool main shaft. The other end of the universal joint input shaft 1 is provided with a first groove 12, and screw holes are symmetrically formed in the groove walls of two sides of the first groove 12. One end of the universal joint output shaft 3 is provided with a second groove 31, screw holes are symmetrically formed in the groove walls of two sides of the second groove 31, and an extension shaft 32 is arranged at the other end of the universal joint output shaft 3. The universal joint input shaft 1 is arranged in a vertical state according to the groove wall of the first groove 12, the universal joint output shaft 3 is arranged in a horizontal state according to the groove wall of the second groove 31, and the universal joint core 2 is arranged in the first groove 12 and is simultaneously located in the second groove 31.

The gimbal core 2 has a spherical structure, and may be a whole sphere or a table as used in the present embodiment (as shown in fig. 4). Preferably, the joint core 2 is provided as a hollow structure.

The universal joint support screws 4 are four, the four universal joint support screws 4 are correspondingly installed in the four screw holes of the first groove 12 and the second groove 31 through threaded connection, the universal joint core 2 is limited in a gap space formed by the end portions of the four universal joint support screws 4, and the spherical surface of the universal joint core 2 can be in rotatable contact with the end portions of the universal joint support screws 4 by adjusting the insertion depth of the four universal joint support screws 4.

The lateral wall of the gland 6 is provided with a plurality of gland screw holes and is arranged at the head end of the workpiece through a compression screw 7. The gland screw holes are four in the embodiment and are uniformly distributed in an annular array, the compression screws 7 are in threaded connection with the gland screw holes, and the four compression screws 7 are compressed from the outer wall of the workpiece, so that the gland 6 is fixed at the end of the workpiece.

A gland central through hole 61 is formed in the middle of the gland 6, and the extension shaft 32 of the universal joint output shaft 3 is inserted into the gland central through hole 61. The gland center through hole 61 is any one of a triangular hole, a square hole, a triangular star-shaped hole, a quadrangular star-shaped hole and a pentagonal star-shaped hole, and the shape of the extension shaft 32 is matched with that of the gland center through hole 61. In the present embodiment, the central through hole 61 of the press cover is a square hole, and the extension shaft 32 is a square column. The universal joint output shaft 3 is connected with the gland central through hole 61 to transmit torque, but the extension shaft 32 is not limited to axial movement in the gland central through hole 61. When the universal joint output shaft 3 rotates, the universal joint output shaft 3 drives the gland to rotate, so that the workpiece is driven to rotate. The spring 5 is sleeved on the periphery of the extension shaft 32, and the end head of the spring 5 is contacted with the outer surface of the gland 6.

The limiting mechanism comprises two center frames 8 and a stop block 9.

The two center frames 8 are respectively fixed on the machine tool body. Referring to fig. 3 and 4, the center frame 8 includes a center ring 81, an extension frame 82, a support frame 83, and an adjustment bolt 84. The support frame 83 is connected below the center ring 81 and is used for supporting, and the center frame 8 is installed on the machine tool body through the bolt connecting support frame 83 when being installed. The periphery of center ring 81 is connected with three extension frame 82, constitutes 120 degrees contained angles between the adjacent extension frame 82 and the centre of a circle of center ring 81, and extension frame 82 has seted up the through screw hole, and the through screw hole link up the inner wall of center ring 81. In the center frame 8, the center ring 81, the extension frame 82, and the support frame 83 are integrally structured, and the adjusting bolt 84 is detachably structured. Three adjusting bolts 84 are correspondingly installed in the through screw holes by screw connection, and the ends of the adjusting bolts 84 protrude to the inside of the center ring 81. As shown in fig. 1 and 4, one of the two steady rests 8 is disposed as close as possible to the head end of the workpiece 100, and the other is disposed corresponding to the tail end of the workpiece 100. The workpiece is positioned in the center rings 81 of the two center frames and limited in a gap space formed by the ends of a plurality of adjusting bolts 84, and the workpiece can rotate around the axial line of the workpiece in the gap space by adjusting the inserting depth of the adjusting bolts, namely, the workpiece is in rotatable contact with the adjusting bolts 84. Further, can also be according to actual conditions at adjusting bolt 84's tip parcel soft material layer, for example sheathe in cloth cover, sponge cover etc. or paste sponge layer, cloth layer etc. and further play the guard action to the outer wall of work piece, prevent the friction scratch.

The stopper 9 is fixed to the center frame 8 at the rear end of the workpiece by two bolts 10 to be in contact with the end face of the rear end of the workpiece 100, and the stopper 9 serves to restrict the workpiece 100 from moving axially to the right as viewed in fig. 1. In this embodiment, the stopper 9 is a teflon stopper.

The utility model discloses a hole processingequipment suitable for long section of thick bamboo class part can effectively keep apart the power vibration of lathe and rotate the interference influence that brings to the work piece, and its simple structure has stronger maneuverability, safe and reliable, can install on conventional grinding machine lathe, has promoted the grinding precision of the hole of long section of thick bamboo class work piece.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inner hole processingequipment suitable for long section of thick bamboo class part which characterized in that includes: the flexible connecting mechanism is connected between a machine tool spindle and a workpiece, and the limiting mechanism is used for limiting the workpiece;

the flexible connecting mechanism comprises a universal joint input shaft, a universal joint core, a universal joint output shaft, a universal joint support screw, a spring, a gland and a compression screw;

one end of the universal joint input shaft is fixedly connected with the main shaft of the machine tool, the other end of the universal joint input shaft is provided with a first groove, and the groove walls on two sides of the first groove are symmetrically provided with screw holes;

a second groove is formed in one end of the universal joint output shaft, screw holes are symmetrically formed in the groove walls of the two sides of the second groove, and an extension shaft is arranged at the other end of the universal joint output shaft;

the universal joint input shaft is arranged in a vertical state according to the groove wall of a first groove, the universal joint output shaft is arranged in a horizontal state according to the groove wall of a second groove, and the universal joint core is arranged in the first groove and is simultaneously positioned in the second groove;

the universal joint core is limited in a clearance space formed by the end parts of the four universal joint support screws and is in rotatable contact with the universal joint support screws;

the gland passes through the housing screw installs the head end at the work piece, gland center through-hole has been seted up at the middle part of gland, extend the axle with gland center through-hole pegs graft, the spring housing is established extend the periphery of axle.

2. The inner hole machining device for the long cylinder part as claimed in claim 1, wherein:

the central through hole of the gland is any one of a triangular hole, a square hole, a triangular star-shaped hole, a rectangular star-shaped hole and a pentagonal star-shaped hole;

the shape of the extension shaft is matched with that of the central through hole of the gland.

3. The inner hole machining device for the long cylinder part as claimed in claim 1, wherein:

the limiting mechanism comprises two center frames and a stop block;

the center frame is provided with a center ring, the outer wall of the center ring is connected with a plurality of extension frames, the extension frames are provided with through screw holes, the through screw holes penetrate through the inner wall of the center ring, a plurality of adjusting bolts are correspondingly arranged in the through screw holes through threaded connection, and the end parts of the adjusting bolts extend into the inner side of the center ring;

the workpieces are positioned in the center rings of the two center frames and limited in a gap space formed by the ends of a plurality of adjusting bolts, and the workpieces are in rotatable contact with the adjusting bolts;

the stop block is fixed on a center frame positioned at the tail end of the workpiece and is contacted with the tail end face of the workpiece.

4. An inner hole machining device suitable for long cylinder parts as claimed in claim 3, wherein:

each center frame is provided with three extension frames, and an included angle of 120 degrees is formed between the adjacent extension frames and the circle center of the center ring.