CN220311977U

CN220311977U - Finish reaming tool

Info

Publication number: CN220311977U
Application number: CN202322085399.5U
Authority: CN
Inventors: 陈跃坤
Original assignee: Chongqing Taicang Technology Co ltd
Current assignee: Chongqing Taicang Technology Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-01-09
Anticipated expiration: 2033-08-04

Abstract

The utility model discloses a precision reaming tool which comprises a base structure, wherein the base structure comprises a bottom plate and a top plate, a constant-height pad is arranged between the edges of the bottom plate and the top plate, the bottom plate, the constant-height pad and the top plate are fixed through screws, at least one through hole is formed in the top plate, an air cylinder is fixed on the bottom surface of the top plate, a piston shaft of the air cylinder is positioned in the through hole, a hollow mandrel is arranged on the top surface of the top plate, a connecting rod connected with the piston shaft of the air cylinder is arranged at the center of the hollow mandrel, an upper taper sleeve with a large upper end and a small lower end is arranged at the top end of the connecting rod, and a tensioning sleeve is arranged between the upper part of the outer wall of the hollow mandrel and the upper taper sleeve. The utility model has reasonable structural arrangement, the tension sleeve is positioned by tension in the hole site of the motorcycle cylinder body through the upper taper sleeve and the upper part of the side wall of the hollow mandrel, so that the number of cylinders can be reduced, the processing cost can be reduced, the deflection or displacement of a processed workpiece can be effectively prevented, the follow-up processing precision can be improved, and the utility model has strong applicability and good practicability.

Description

Finish reaming tool

Technical Field

The utility model belongs to the technical field of motorcycle cylinder body machining, and particularly relates to a finish reaming tool.

Background

In the motorcycle engine cylinder body processing process, need use reaming frock, the reaming frock of prior art is comparatively complicated in its structure, and it needs many outer clamping structure to accomplish the centre gripping operation, centre gripping stationarity is limited, the applicant has filed patent application number CN202120597850.X boring and reaming frock before, it is through setting up the arch shell fragment on the loading board, the cooperation is with the loading board that the bottom plate is connected through the rotation axis, be favorable to improving the stationarity of centre gripping, however it also has certain technical deficiency, it needs at least two or three cylinders to cooperate and just can accomplish the centre gripping, the cost of centre gripping has been greatly increased, and it also can't prevent the off normal operation to the work piece, thereby in practical application process, the work piece is off normal or shifted easily, thereby cause machining precision relatively poor, so suitability and practicality are limited.

Disclosure of Invention

The utility model aims to provide a finish reaming tool which is reasonable in structural arrangement and beneficial to preventing deviation.

The technical scheme for achieving the purpose of the utility model is that the fine reaming tool comprises a base structure, wherein the base structure comprises a bottom plate and a top plate, a constant-height pad is arranged between the edges of the bottom plate and the top plate, the bottom plate, the constant-height pad and the top plate are fixed through screws, at least one through hole is formed in the top plate, a cylinder is fixed on the bottom surface of the top plate, a piston shaft of the cylinder is positioned in the through hole, a hollow mandrel is arranged on the top surface of the top plate, a connecting rod connected with the piston shaft of the cylinder is arranged in the center of the hollow mandrel, an upper taper sleeve with a large upper end and a small lower end is arranged at the top end of the connecting rod, a tensioning sleeve is arranged between the upper portion of the outer wall of the hollow mandrel and the upper taper sleeve, and the upper taper sleeve is driven by the cylinder to move downwards and is matched with the mandrel to clamp so that the tensioning sleeve is outwards tensioned to enable a machined piece to be positioned.

Further preferred are: the top of the outer wall of the hollow mandrel is provided with an inclined plane with a small upper end and a large lower end, and the tensioning sleeve is positioned between the upper taper sleeve and the inclined plane of the hollow mandrel.

Further preferred are: the tensioning sleeve comprises a sleeve body, an annular groove is formed in the middle of the outer wall of the sleeve body, two ends of the inner wall of the sleeve body are outwards inclined trumpet-shaped guide inclined planes, a buffer strip-shaped groove with one end open is formed in the side wall of the sleeve body, and the inclined planes of the upper taper sleeve and the hollow mandrel are attached to the trumpet-shaped guide inclined planes.

Further preferred are: the top surface center of going up the taper sleeve is provided with the screens recess, be provided with the packing ring in the screens recess, the packing ring passes through the fix with screw on the top of connecting rod, it is spacing on the top of connecting rod that go up the taper sleeve through the packing ring.

Further preferred are: the top surface of roof still is provided with a plurality of locating hole, the locating hole evenly sets up in the border department of dabber, the downthehole contour post that buckles of locating, the bottom surface border butt of machined part is spacing on the contour post.

Further preferred are: and a manual valve connected with the air cylinder is also fixed on the top plate.

The utility model has the positive effects that: the utility model has reasonable structural arrangement, is provided with the upper taper sleeve matched with the hollow mandrel and the tensioning sleeve, when in use, the hole site of the motorcycle cylinder body of the workpiece to be processed is sleeved on the surface of the hollow mandrel, then the cylinder is started to move the upper taper sleeve downwards, the tensioning sleeve is tensioned in the hole site of the motorcycle cylinder body to be positioned through the upper taper sleeve and the upper part of the side wall of the hollow mandrel, so that the number of the cylinders can be reduced, the processing cost can be reduced, the deflection or displacement of the workpiece to be processed can be effectively prevented, the follow-up processing precision can be improved, and the utility model has strong applicability and good practicability.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings, in which:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a view of the structure of FIG. 1, taken along line A-A;

FIG. 3 is a schematic view of the structure of the upper cone sleeve according to the present utility model;

FIG. 4 is a schematic view of a hollow mandrel according to the present utility model;

fig. 5 is a schematic structural view of the tension sleeve in the present utility model.

Reference numerals: the base structure 1, the bottom plate 11, the top plate 12, the equal-height pad 13, the through hole 14, the air cylinder 2, the hollow mandrel 3, the connecting rod 4, the upper taper sleeve 5, the tensioning sleeve 6, the sleeve body 61, the annular groove 62, the trumpet-shaped guide inclined plane 63, the buffer strip groove 64, the inclined plane 7, the workpiece 8, the clamping groove 9, the gasket 10, the equal-height column 15 and the manual valve 16.

Detailed Description

Example 1

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

See fig. 1 to 5, a finish reaming hole frock, including base structure 1, base structure includes bottom plate 11 and roof 12, be equipped with the contour gasket 13 and bottom plate, contour gasket and roof between the border of bottom plate and roof are fixed through the screw rod, offer at least one through-hole 14 on the roof, in this embodiment, its bottom plate and roof can be the metal structure body, and the contour gasket between its two mainly makes there is certain height between bottom plate and the roof, is convenient for install the cylinder of follow-up structure, and its contour gasket can set up as required. Meanwhile, in the embodiment, the through hole can be one through hole or two through holes, and different motorcycle cylinder body requirements can be processed.

The bottom surface of roof is fixed with cylinder 2, the piston shaft of cylinder is in the through-hole, the top surface of roof is provided with cavity dabber 3, the center of cavity dabber be provided with the connecting rod 4 that the piston shaft of cylinder is connected, the top of connecting rod is equipped with big lower extreme of upper end is little last taper sleeve 5, in this embodiment, the top surface center of going up the taper sleeve is provided with screens recess 9, be provided with packing ring 10 in the screens recess, the packing ring passes through the screw fixation on the top of connecting rod, it is spacing on the top of connecting rod that go up the taper sleeve passes through the packing ring. In the embodiment, the clamping groove is arranged on the top surface of the upper taper sleeve, so that the upper taper sleeve is convenient to limit by being connected with the connecting rod through the gasket, and the upper taper sleeve is prevented from loosening or falling off.

A tensioning sleeve 6 is arranged between the upper part of the outer wall of the hollow mandrel and the upper taper sleeve, and the upper taper sleeve is driven by the cylinder to move downwards and is matched with the mandrel to clamp and press so that the tensioning sleeve is tensioned outwards to position a workpiece 8. In this embodiment, the hollow shaft is fixed in position, and is matched with the upper taper sleeve to make the tension sleeve clamp the tension operation in the use process.

In the practical application process, the outer wall top of cavity dabber is the big inclined plane 7 setting of upper end little lower extreme, tight cover that rises is in between the inclined plane of taper sleeve and cavity dabber, and simultaneously in the practical application process, tight cover 6 that rises includes the cover body 61, the outer wall middle part of the cover body is provided with annular groove 62, the inner wall both ends of the cover body are outwards inclined tubaeform guide inclined plane 63, just set up one end open-ended buffering bar groove 64 on the lateral wall of the cover body, the inclined plane of taper sleeve and cavity dabber is attached on tubaeform guide inclined plane. In this embodiment, the tensioning sleeve may also be a metal structure, and when in use, the tensioning sleeve is guided by the trumpet-shaped guiding inclined plane, and when the upper taper sleeve and the hollow mandrel enter, the tensioning sleeve is outwards unfolded, and the width of the buffer strip-shaped groove is widened, so that the tensioning sleeve is abutted against the inner wall of the hole site of the workpiece to be positioned.

The top surface of roof still is provided with a plurality of locating hole, the locating hole evenly sets up in the border department of dabber, the downthehole contour post 15 that buckles of locating, the bottom surface border butt of machined part is spacing on the contour post. Different contour posts can be selected for insertion according to different conditions, and the contour post is mainly used for supporting the processed edge, preventing the edge position from being hollowed out, ensuring the supporting force during processing, and further ensuring the processing precision.

A manual valve 16 connected with the cylinder is also fixed on the top plate. The manual valve is mainly used for controlling the action of the air cylinder. In this embodiment, the cylinder is connected to an air pump or an external air pipe, which is common knowledge in the prior art.

The utility model has reasonable structural arrangement, is provided with the upper taper sleeve matched with the hollow mandrel and the tensioning sleeve, when in use, the hole site of the motorcycle cylinder body of the workpiece to be processed is sleeved on the surface of the hollow mandrel, then the cylinder is started to move the upper taper sleeve downwards, the tensioning sleeve is tensioned in the hole site of the motorcycle cylinder body to be positioned through the upper taper sleeve and the upper part of the side wall of the hollow mandrel, so that the number of the cylinders can be reduced, the processing cost can be reduced, the deflection or displacement of the workpiece to be processed can be effectively prevented, the follow-up processing precision can be improved, and the utility model has strong applicability and good practicability.

The standard components used in this embodiment may be purchased directly from the market, but the nonstandard structural components described in the specification may also be obtained directly by unambiguous processing according to the common general knowledge in the prior art, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that no specific description will be made here.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the utility model remain within the scope of the utility model.

Claims

1. The utility model provides a finish reaming hole frock, includes base structure, its characterized in that: the base structure comprises a bottom plate and a top plate, wherein an equal-height pad is arranged between the edges of the bottom plate and the top plate, the bottom plate, the equal-height pad and the top plate are fixed through screws, at least one through hole is formed in the top plate, an air cylinder is fixed on the bottom surface of the top plate, a piston shaft of the air cylinder is positioned in the through hole, a hollow mandrel is arranged on the top surface of the top plate, a connecting rod connected with the piston shaft of the air cylinder is arranged at the center of the hollow mandrel, an upper taper sleeve with a large upper end and a small lower end is arranged at the top end of the connecting rod, a tensioning sleeve is arranged between the upper portion of the outer wall of the hollow mandrel and the upper taper sleeve, and the upper taper sleeve is driven by the air cylinder to move downwards and is matched with the mandrel to clamp and press so that the tensioning sleeve is outwards tensioned to enable a workpiece to be positioned.

2. The finish reaming tool of claim 1, wherein: the top of the outer wall of the hollow mandrel is provided with an inclined plane with a small upper end and a large lower end, and the tensioning sleeve is positioned between the upper taper sleeve and the inclined plane of the hollow mandrel.

3. The finish reaming tool of claim 2, wherein: the tensioning sleeve comprises a sleeve body, an annular groove is formed in the middle of the outer wall of the sleeve body, two ends of the inner wall of the sleeve body are outwards inclined trumpet-shaped guide inclined planes, a buffer strip-shaped groove with one end open is formed in the side wall of the sleeve body, and the inclined planes of the upper taper sleeve and the hollow mandrel are attached to the trumpet-shaped guide inclined planes.

4. A finish reaming tool according to claim 3, wherein: the top surface center of going up the taper sleeve is provided with the screens recess, be provided with the packing ring in the screens recess, the packing ring passes through the fix with screw on the top of connecting rod, it is spacing on the top of connecting rod that go up the taper sleeve through the packing ring.

5. The finish reaming tool of claim 4, wherein: the top surface of roof still is provided with a plurality of locating hole, the locating hole evenly sets up in the border department of dabber, the downthehole contour post that buckles of locating, the bottom surface border butt of machined part is spacing on the contour post.

6. The finish reaming tool of claim 1, wherein: and a manual valve connected with the air cylinder is also fixed on the top plate.