CN221185672U

CN221185672U - Technological chuck

Info

Publication number: CN221185672U
Application number: CN202323202983.0U
Authority: CN
Inventors: 李振源; 赵晓云; 柴伟; 韩养; 方鹏; 胡阿林
Original assignee: AVIC Landing Gear Advanced Manufacturing Corp
Current assignee: AVIC Landing Gear Advanced Manufacturing Corp
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-06-21
Anticipated expiration: 2033-11-27

Abstract

The utility model provides a process chuck. The process chuck comprises a body, wherein an lug is arranged at the upper end of one side of the body in a first direction X, a blind hole extending along the first direction X is arranged at the lower end of the body, a through hole extending along a second direction Y is arranged on the lug, the first direction X and the second direction Y are perpendicular to each other on the same overlooking projection plane of the body, a bolt shaft is arranged in the through hole and is fixed through a nut, a pin shaft is inserted into the blind hole, and the pin shaft extends out of the body from the blind hole; the other side of the body in the first direction X is a clamping end. The utility model realizes the effective clamping of the cylindrical part, avoids the extension of process preparation time and ensures the processing quality of the outer circle of the part.

Description

Technological chuck

Technical Field

The utility model relates to the technical field of machining of mechanical parts, in particular to a process chuck which is applied to high-precision machining of cylindrical parts by turning and grinding.

Background

The outer circle precision requirement of a part of cylindrical parts is high, and the part is inconvenient to directly fix by a chuck of a machine tool in high-precision machining of turning and grinding the outer circle. The earplate with the hole is arranged at one end of the part, and the existing process chuck is difficult to accurately position and clamp the part because of lower shape and position precision. If the process clamping head is not suitable for the process clamping head, the parts are required to be adjusted and aligned each time when being positioned on a machine tool, the process preparation time is prolonged, and the processing quality of the excircle of the parts is difficult to ensure.

Therefore, a clamping position suitable for the structural part needs to be researched.

Disclosure of utility model

The utility model aims to provide a process chuck which can better clamp and position a part with a Kong Er plate, and avoid the extension of process preparation time.

The technical scheme of the utility model is as follows: the technical chuck comprises a body, wherein an ear piece is arranged at the upper end of one side of the body in a first direction X, a blind hole extending along the first direction X is arranged at the lower end of the body, a through hole extending along a second direction Y is arranged on the ear piece, the first direction X and the second direction Y are perpendicular to each other on the same overlook projection plane of the body, a bolt shaft is arranged in the through hole, the bolt shaft is fixed through a nut, a pin roll is inserted in the blind hole, and the pin roll extends out of the body from the blind hole; the other side of the body in the first direction X is a clamping end.

Preferably, the body is equipped with two lugs at the interval in second direction Y, forms the installation cavity between two lugs, the both ends of bolt axle all are equipped with the screw thread, and all are connected with the nut on the bolt at both ends.

Preferably, two lugs are provided with gaskets on one side close to each other, and the gaskets are sleeved on the bolt shaft.

Preferably, the nut is a shoulder nut.

Preferably, a bushing is arranged in the through hole, a gasket is sleeved on the bolt shaft, the bolt shaft is arranged in the bushing, and the nut and the gasket are clamped on two sides of the bushing.

Preferably, the pin shaft is in transition fit with the blind hole.

Preferably, the pin shaft is sleeved with a lining ring, and the lining ring is attached to the end face of the body.

Compared with the related art, the utility model has the beneficial effects that:

1. The process chuck is positioned with the hole on the part through the pin shaft, is fixed through the bolt shaft after the lug plate is inserted with the lug plate of the part, and the clamping end at the other side of the process chuck is fixed with the machine tool chuck, so that the existing lug plate end face and hole positioning on the part are fully utilized, the effective clamping of the part is realized, the extension of process preparation time is avoided, and the processing quality of the excircle of the part is ensured;

2. the utility model utilizes the inner hole of the main shaft of the part to position and utilizes the end face of the lug plate to assist in positioning and clamping the part, the mode can rapidly and accurately connect the part to be processed with the process chuck, and the over-positioning caused by the distance tolerance between the inner hole (Y axis) of the lug plate and the hole (X axis) is avoided.

Drawings

FIG. 1 is a schematic view of a process cartridge and part positioning structure provided by the present utility model;

fig. 2 is a schematic view of the structure taken along section A-A in fig. 1.

In the accompanying drawings: 1. a body; 12. ear pieces; 13. a through hole; 14. a blind hole; 15. a mounting cavity; 16. a clamping end; 2. a bolt shaft; 3. a gasket; 4. a bushing; 5. a nut; 6. a backing ring; 7. a pin shaft; 8. a part; 81. ear plates; 82. and (3) a hole.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 1 and 2, the process cartridge provided in this embodiment includes a body 1, a bolt shaft 2, a washer 3, a bushing 4, a nut 5, a bushing ring 6, and a pin 7.

The body 1 is a force bearing component, the upper end of one side of the body in the first direction X is provided with an ear piece 12, and the lower end of the body is provided with a blind hole 14 extending along the first direction X. The lugs 12 are provided with two in the second direction Y, and a mounting cavity 15 is formed between the two lugs 12. The tab 12 is provided with a through hole 13 extending in the second direction Y. The first direction X and the second direction Y are perpendicular to each other on the same top projection plane of the body 1. Both ends of the bolt shaft 2 are provided with threads, and nuts 5 are connected to bolts at both ends. The other side of the body 1 in the first direction X is a clamping end 16, and the clamping end 16 is used for being fixed with a machine tool chuck. The pin shaft 7 is inserted into the blind hole 14, and the pin shaft 7 extends out of the blind hole 14 to the outer side of the body 1. The pin shaft 7 is in transition fit with the blind hole 14.

The bushing 4 is arranged in the through hole 13, the gasket 3 is sleeved on the bolt shaft 2, the bolt shaft 2 is arranged in the bushing 4, and the nut 5 and the gasket 3 are clamped on two sides of the bushing 4. The nut 5 is a shoulder nut.

The bolt shaft 2 is used for fastening a process chuck and a part 8. The spacer 3 serves to eliminate the gap between the lug 81 of the part 8 and the end face of the tab 12 of the process cartridge. The bushing 4 serves to convert the inner bore positioning of the through bore 13 into end face positioning. The nut 5 is used for tightening the part 8 and eliminating the gap between the lug plate 81 and the end face of the lug plate 12. The backing ring 6 is used to eliminate the gap between the process cartridge and the part 8 on the end face. The pin 7 is used for positioning the process cartridge and the part 8 on the spindle.

When the pin is mounted, one end of the pin 7 extending to the outside is inserted into the hole 82 for positioning. The lug 81 of the part 8 is then mounted in said mounting cavity 15 and the spacer 3 is placed on the inner end side of the bushing 4, the hole in the lug 81 is aligned with the process cartridge through hole 13, and the bolt shaft 2 is passed through the bushing 4 and the spacer 3. The gaskets 3 are arranged between the two ends of the ear plate 81 and the ear pieces 12 at the corresponding positions. Finally, nuts 5 are fastened at the two ends of the bolt shaft 2, and the nuts 5 are pressed with the end faces of the bushings 4. The nut 5 and the gasket 3 are clamped on two sides of the bushing 4. The whole process only uses the inner hole 82 of the main shaft of the part 8 to position, and uses the end surface of the lug plate 81 to assist in positioning and clamping the part 8. This allows for a quick and accurate connection of the part 8 to be machined to the process cartridge, while avoiding over-positioning due to distance tolerances between the inner bore (Y axis) of the ear plate 81 and the bore 82 (X axis).

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The technical chuck is characterized by comprising a body (1), wherein an lug (12) is arranged at the upper end of one side of the body (1) in a first direction X, a blind hole (14) extending along the first direction X is arranged at the lower end of the body, a through hole (13) extending along a second direction Y is arranged on the lug (12), the first direction X and the second direction Y are perpendicular to each other on the same overlooking projection plane of the body (1), a bolt shaft (2) is arranged in the through hole (13), the bolt shaft (2) is fixed through a nut (5), a pin shaft (7) is inserted into the blind hole (14), and the pin shaft (7) extends out of the body (1) from the blind hole (14); the other side of the body (1) in the first direction X is a clamping end (16).

2. Process cartridge according to claim 1, characterized in that the body (1) is provided with two lugs (12) at intervals in the second direction Y, a mounting cavity (15) is formed between the two lugs (12), both ends of the bolt shaft (2) are provided with threads, and the bolts at both ends are connected with nuts (5).

3. Process cartridge according to claim 2, characterized in that the two lugs (12) are provided with a spacer (3) on each side close to each other, which spacer (3) is sleeved on the bolt shaft (2).

4. Process cartridge according to claim 1, characterized in that the nut (5) is a shoulder nut.

5. The process cartridge according to claim 1, wherein a bushing (4) is installed in the through hole (13), a gasket (3) is sleeved on the bolt shaft (2), the bolt shaft (2) is installed in the bushing (4), and the nut (5) and the gasket (3) are clamped on two sides of the bushing (4).

6. Process cartridge according to claim 1, characterized in that the pin (7) is in transition fit with a blind hole (14).

7. The process cartridge according to claim 1, wherein the pin shaft (7) is sleeved with a lining ring (6), and the lining ring (6) is attached to the end face of the body (1).