CN215316084U

CN215316084U - Pinhole maintenance frock

Info

Publication number: CN215316084U
Application number: CN202121792922.2U
Authority: CN
Inventors: 季廷忠; 钟刚; 袁吉; 万晶晶; 孙春桃
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2021-12-28
Anticipated expiration: 2031-08-03

Abstract

The utility model discloses a pin hole maintenance tool, which comprises a transition plate, wherein the transition plate is integrally of an arc-shaped plate structure, and is provided with a positioning hole matched and positioned with a part and a stepped hole for placing a positioning sleeve; the positioning sleeve is connected with the transition plate through a first screw, and the positioning sleeve assists the reamer pair to align to the pin hole. The utility model has the advantages that the transition plate is connected with the part, the positioning sleeve is connected with the transition plate, and the positioning sleeve assists the reamer pair to align the pin hole, so that the reamer is prevented from inclining or deviating in the processing process, the positioning accuracy and reliability are improved, and the pin hole with high precision and high quality can be processed.

Description

Pinhole maintenance frock

Technical Field

The utility model relates to a technology of an auxiliary positioning tool for a machined part, in particular to a pin hole maintenance tool.

Background

When parts connected by high-precision pin holes are maintained, the pin holes are often damaged or pulled, and therefore the pin holes are required to be machined or polished after the parts are maintained so as to meet use requirements. The conventional tool for assisting in maintaining the pin hole is inaccurate in positioning, and no special machine tool is used for processing the pin hole in a maintenance field, so that the high-precision and high-quality pin hole is difficult to process in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pin hole maintenance tool to solve the problems that the conventional tool for assisting in maintaining a pin hole is inaccurate in positioning, and a special machine tool cannot be used for machining the pin hole on site, so that the high-precision and high-quality pin hole is difficult to machine on site.

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

A pin hole maintenance tool comprises a transition plate, wherein the transition plate is integrally of an arc-shaped plate structure, and is provided with a positioning hole matched with a part for positioning connection and a step hole for placing a positioning sleeve; the positioning sleeve is connected with the transition plate through a first screw, and the positioning sleeve assists the reamer pair to align to the pin hole.

According to the utility model adopting the technical scheme, the transition plate which is integrally arc-shaped is arranged to be matched with the pin hole position of the part to be processed, the positioning hole is arranged to be connected with the part in a positioning mode, the step hole is arranged on the transition plate, and the step hole is matched with the positioning sleeve for positioning, so that the positioning accuracy is improved; and the positioning sleeve is connected with the transition plate through the first screw, and the positioning sleeve assists the reamer in aligning the pin holes, so that the reamer has good position, the positioning accuracy and reliability are further improved, and the processing of the pin holes with high precision and high quality is facilitated.

Preferably, the transition plate is provided with a plurality of positioning holes and step holes, and each step hole corresponds to a pin hole in one part. The transition plate is connected with the parts in a positioning mode through the positioning holes, each step hole corresponds to the pin hole in one part, and positioning accuracy during machining is improved.

Preferably, the positioning sleeve is integrally of a circular structure, two steps are arranged on the periphery of the circular structure, a first positioning surface is formed on the outer circumference of the step at the top, the first positioning surface is matched and positioned with the step hole of the transition plate, two mounting holes are symmetrically formed in the step at the bottom, and the first screw penetrates through the mounting hole and is connected with the transition plate. The first screw fixes the locating sleeve on the transition plate through the mounting hole, so that the locating sleeve is convenient to replace or maintain, and the locating sleeve and the transition plate are accurately located after the first locating surface is matched with the transition plate locating surface.

Preferably, a guide hole with a circular step structure is formed in the axis of the positioning sleeve, the guide hole is used for the reamer to pass through and is aligned with the pin hole, and a second positioning surface is formed on the hole wall of the guide hole and is matched with the reamer for positioning through the second positioning surface. The second positioning surface is matched with the reamer, so that the reamer has good position precision and is beneficial to processing pin holes with high precision and high quality; and the processing of different pin holes of a single part can be realized by replacing the positioning sleeves of the guide holes with different sizes.

Preferably, the transition plate is connected with the part through a second screw for positioning. The transition plate is connected with the part through the second screw, and the transition plate is convenient to disassemble after the pin hole is machined.

The utility model has the beneficial effects that the transition plate which is integrally arc-shaped is arranged to be matched with the pin hole position of the part to be processed, the positioning hole is arranged to be connected with the part in a positioning way, the transition plate is provided with the step hole, and the step hole is matched with the positioning sleeve for positioning, so that the positioning accuracy is improved; through set up first locating surface and second locating surface on the position sleeve, make the position sleeve realize accurate location with crossing the cab apron position behind first locating surface and the cooperation of crossing the cab apron locating surface, the second locating surface cooperates with the reamer for the reamer has good position precision, is favorable to processing out high accuracy, high-quality pinhole.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a plan view of the present invention during the processing of multiple pin holes;

FIG. 3 is a plan view of the present invention during the machining of a single pin hole;

fig. 4 is a cross-sectional view of a locating sleeve of the present invention.

Detailed Description

The present invention is further described with reference to the accompanying drawings, but the utility model is not limited thereby within the scope of the described embodiments.

Reference numerals in the drawings of the specification include: the transition plate comprises a transition plate 1, a first screw 2, a locating sleeve 3, a reamer 4, a second screw 5, a part 6, a mounting hole 33, a first locating surface 31, a second locating surface 32 and a guide hole 34.

Referring to fig. 1 and 2, the pin hole maintenance tool comprises a transition plate 1, wherein the transition plate 1 is integrally of an arc-shaped plate structure, and is provided with a positioning hole matched and connected with a part 6 and a step hole for placing a positioning sleeve 3; the positioning sleeve 3 is connected with the transition plate 1 through a first screw 2, and the positioning sleeve 3 assists the reamer 4 to align to the pin hole.

Referring to fig. 1 to 3, the transition plate 1 is provided with a plurality of positioning holes and step holes, two positioning holes are symmetrically arranged near the outer circumference of each step hole, and each step hole corresponds to a pin hole on one part 6. The transition plate 1 is connected and positioned with a part 6 through a second screw 5.

Referring to fig. 4, the positioning sleeve 3 is integrally of a circular structure, two steps are arranged on the periphery of the circular structure, a first positioning surface 31 is formed on the outer circumference of the top step, the first positioning surface 31 is matched and positioned with a step hole of the transition plate 1, two mounting holes 33 are symmetrically arranged on the step at the bottom, and the first screw 2 penetrates through the mounting hole 33 and is connected with the transition plate 1.

Referring to fig. 1 and 4, a guide hole 34 with a circular step structure is formed at the axial center of the positioning sleeve 3, the guide hole 34 is used for the reamer 4 to pass through and is aligned with the pin hole, a second positioning surface 32 is formed on the hole wall of the guide hole 34, and the reamer 4 is positioned by the second positioning surface 32.

Detecting the position degree of a pin hole on the part 6, selecting the positioning sleeve 3 with the size of the guide hole 34 being the same as that of the pin hole of the part 6, fixing the positioning sleeve 3 on the transition plate 1 through the first screw 2, penetrating the transition plate 1 through the second screw 5, and not screwing the second screw 5. After the pin shaft slightly smaller than the size of the guide hole 34 is inserted into the pin holes of the positioning sleeve 3 and the part 6, the pin shafts with the same size are used for respectively checking whether the pin holes of other parts 6 can be inserted. The relative position degrees of different pin holes on the parts 6 are detected by the method, and whether the pin shaft can be connected with two matched parts 6 or not can be judged.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The pin hole maintenance tool is characterized by comprising a transition plate (1), wherein the transition plate (1) is integrally of an arc-shaped plate structure, and is provided with a positioning hole matched and connected with a part (6) and a step hole for placing a positioning sleeve (3); the positioning sleeve (3) is connected with the transition plate (1) through a first screw (2), and the auxiliary reamer (4) aligns to the pin hole through the positioning sleeve (3).

2. The pin hole repairing tool according to claim 1, wherein a plurality of positioning holes and step holes are formed in the transition plate (1), and each step hole corresponds to a pin hole in one part (6).

3. The pin hole maintenance tool according to claim 1, wherein the locating sleeve (3) is integrally of a circular structure, two steps are arranged on the periphery of the circle, a first locating surface (31) is formed on the outer circumference of the top step, the locating sleeve is matched and located with the step hole of the transition plate (1) through the first locating surface (31), two mounting holes (33) are symmetrically formed in the step at the bottom, and the first screw (2) penetrates through the mounting holes (33) to be connected with the transition plate (1).

4. The pin hole maintenance tool according to claim 1, characterized in that a guide hole (34) with a circular step structure is formed at the axis of the locating sleeve (3), the guide hole (34) is used for the reamer (4) to pass through and is aligned with the pin hole, a second locating surface (32) is formed on the hole wall of the guide hole (34), and the guide hole is matched and located with the reamer (4) through the second locating surface (32).

5. The pinhole repair tooling of any one of claims 1 to 4, characterized in that the transition plate (1) is connected with a part (6) by a second screw (5) for positioning.