CN215510662U

CN215510662U - Tool for positioning piston

Info

Publication number: CN215510662U
Application number: CN202120654372.1U
Authority: CN
Inventors: 缪志桥; 杨超林; 黄云飞
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-01-14
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a tool for positioning a piston, which comprises a base, two piston clamps, a plastic positioning shaft and a shaft seat, wherein the two piston clamps are respectively and oppositely arranged at a first end and a second end of the base, a piston placing part is arranged in the center of the base and positioned between the two piston clamps, the shaft seat is arranged at a third end of the base, which is adjacent to the first end and the second end, the shaft seat is oppositely arranged with the center of the piston placing part, one end of the plastic positioning shaft is detachably arranged on the shaft seat in a manner of being adjustable from front to back, and the other end of the plastic positioning shaft is configured to be arranged on a piston pin hole in a penetrating manner, and the diameter of the plastic positioning shaft is matched with that of a piston pin hole. The tool for positioning the piston has the advantages that the piston is accurately positioned and conveniently clamped, and the problem that the piston is scratched is avoided.

Description

Tool for positioning piston

Technical Field

The utility model relates to the technical field of engine detection auxiliary tools, in particular to a tool for positioning a piston.

Background

The piston is the key spare part of engine, needs regular spot check size, and current piston measurement anchor clamps need manual equipment, and different people's equipment mode is different with the tight degree of clamp, has to appear getting off and pressing from both sides askew scheduling problem, influences the measurement accuracy, if the unqualified piston that is in critical state is measured qualified and releases, can produce very big quality risk problem. In addition, the problem that the piston is scratched by a positioning tool in the manual clamping process is also caused, the assembly sealing performance of the engine is influenced, and the engine fault is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool for positioning a piston, which has the advantages of realizing accurate positioning and convenient clamping of the piston and avoiding the problem of scratching the piston.

The tool for positioning the piston comprises a base, two piston clamps, a plastic positioning shaft and a shaft seat, wherein the two piston clamps are respectively arranged at the first end and the second end of the base in an opposite mode, a piston placing part is arranged in the center of the base and located between the two piston clamps, the shaft seat is arranged at the third end, adjacent to the first end and the second end, of the base, the shaft seat is arranged in the center of the piston placing part in an opposite mode, one end of the plastic positioning shaft is detachably arranged on the shaft seat in a vertically adjustable mode, the other end of the plastic positioning shaft is arranged on a piston pin hole in a penetrating mode, and the diameter of the plastic positioning shaft is matched with the diameter of a piston pin hole.

The tool for positioning the piston can also comprise:

the piston placing part is a profiling limiting groove matched with the bottom shape of the piston.

The plastic positioning shaft is made of a solid shaft made of nylon.

The shaft seat comprises a first limiting block and a second limiting block, the first limiting block is fixedly arranged on the third end, the second limiting block is adjustably arranged on the third end, and the first limiting block and the second limiting block are jointly configured to be capable of detachably clamping one end of the plastic positioning shaft.

The piston clamp comprises a driving block and a clamping block used for clamping the piston in a releasable mode, a threaded rod is arranged on the driving block, and one end of the threaded rod is rotatably connected with the clamping block.

The middle parts of the first end and the second end of the base are respectively provided with a guide groove, and the clamping block is arranged in the guide grooves and can slide along the guide grooves.

Compared with the prior art, the tool for positioning the piston has the advantages that: because the base is included, two piston anchor clamps, plastics location axle and axle bed, two piston anchor clamps set up respectively relatively and hold at the first end and the second of base, the central authorities of base are equipped with the piston and place the portion, the piston is placed the portion and is located between two piston anchor clamps, the axle bed sets up on the third end of base equal adjacent with first end and second end, and the axle bed sets up with the central authorities of piston placement portion relatively, the one end detachable and the upper-lower regulation ground setting in front and back of plastics location axle sets up on the axle bed, the other end of plastics location axle is configured to be used for wearing to establish on the piston pinhole in order to fix a position the piston, thereby both realized the accurate positioning and the convenient clamping of piston, still realized the effect of avoiding the fish tail piston.

Drawings

Fig. 1 is a schematic top view of a tool for positioning a piston according to the present invention.

Fig. 2 is a side view structural schematic diagram of a tool for positioning a piston according to the present invention.

Fig. 3 is another side view of the tooling for positioning the piston according to the present invention.

Description of the figures

1. A base; 11. a first end; 12. a second end; 13. a piston placing section; 14. a third end; 2. a piston clamp; 21. a drive block; 22. a clamping block; 3. a plastic positioning shaft; 4. a shaft seat; 41. a first stopper; 42. and a second limiting block.

Detailed Description

A tool for positioning a piston according to the present invention will be described in further detail with reference to fig. 1 to 3 of the drawings.

Referring to fig. 1 to 3, the tooling for positioning a piston of the present invention includes a base 1, two piston clamps 2, a plastic positioning shaft 3 and a shaft seat 4.

The two piston clamps 2 are respectively and oppositely arranged at the first end 11 and the second end 12 of the base 1, and the two piston clamps 2 are used for clamping pistons in a releasable mode through moving towards each other.

The base 1 is rectangular, a piston placing part 13 is arranged in the center of the base 1, and the piston placing part 13 is positioned between the two piston clamps 2.

The shaft seat 4 is provided on a third end 14 of the base 1 adjacent to both the first end 11 and the second end 12, and the shaft seat 4 is disposed opposite to the center of the piston placing portion 13, for example, the first end 11 and the second end 12 are both left and right ends of the base 1, and the third end 14 is a front end or a rear end of the base 1.

The plastic positioning shaft 3 is made of hard plastic, and the surface of the piston is prevented from being scratched due to the fact that the plastic positioning shaft is made of plastic. One end of the plastic positioning shaft 3 is detachably arranged on the shaft seat 4 in a way of being adjusted from front to back, and the other end of the plastic positioning shaft 3 is arranged at the upper part of the center of the piston placing part 13.

The working principle is as follows: the opening of the piston is placed on the piston placing portion 13 downwards with the top upward, the plastic positioning shaft 3 is arranged on the piston pin hole in a penetrating mode, one end of the plastic positioning shaft 3 is detachably fixed on the shaft seat 4, the piston is positioned in the center of the piston placing portion 13 by the plastic positioning shaft 3, and then the two piston clamps 2 are operated to move oppositely to clamp the piston.

The tool for positioning the piston comprises a base 1, two piston clamps 2, a plastic positioning shaft 3 and a shaft seat 4, wherein the two piston clamps 2 are respectively and oppositely arranged at a first end 11 and a second end 12 of the base 1, a piston placing part 13 is arranged in the center of the base 1, the piston placing part 13 is positioned between the two piston clamps 2, the shaft seat 4 is arranged at a third end 14 of the base 1 adjacent to the first end 11 and the second end 12, the shaft seat 4 is oppositely arranged with the center of the piston placing part 13, one end of the plastic positioning shaft 3 is detachably arranged on the shaft seat 4 in a front-back up-down adjustable mode, and the other end of the plastic positioning shaft 3 is arranged on a piston pin hole in a penetrating mode to position the piston, so that accurate positioning and convenient clamping of the piston are achieved, and the effect of avoiding scratching the piston is achieved.

Referring to fig. 1 to fig. 3, the tooling for positioning a piston according to the present invention may further include: the piston placing part 13 is a profiling limiting groove matched with the bottom shape of the piston, so that the effect of further improving the positioning accuracy is realized. For example, the piston is placed in the copying limiting groove, and the groove wall of the copying limiting groove limits the piston at a machining position. The diameter size of the profiling limiting groove is preferably matched with the piston with the largest diameter model, so that the plastic positioning shaft 3 can also position the piston with a relatively small size to the center of the profiling limiting groove, and the effect of positioning and clamping the pistons with various models is achieved.

Referring to fig. 1 to fig. 3, the tooling for positioning a piston according to the present invention may further include: the plastic positioning shaft 3 is a solid shaft made of nylon. The nylon material has the effects of high hardness, fatigue resistance and long service life.

Referring to fig. 1 to fig. 3, the tooling for positioning a piston according to the present invention may further include: the shaft seat 4 includes a first stopper 41 and a second stopper 42, the lower end of the first stopper 41 is fixedly disposed on the third end 14, the second stopper 42 is adjustably disposed on the third end 14, and the first stopper 41 and the second stopper 42 are jointly configured to releasably clamp one end of the plastic positioning shaft 3. For example, the lower end of the second limiting block 42 is detachably disposed at the third end 14 of the base 1 through a bolt, for example, after the plastic positioning shaft 3 is inserted into the piston pin hole, the first side of one end of the positioning shaft 3 abuts against the first limiting block 41, the second limiting block 42 abuts against the second side of the positioning shaft 3 opposite to the first side, and then the bolt at the lower end of the second limiting block 42 is screwed, so that the positioning shaft 3 is clamped tightly. When the clamping is released, the bolt at the lower end of the second stopper 42 is loosened.

Preferably, a plurality of grooves for limiting the positioning shaft 3 are formed in two opposite side surfaces of the first limiting block 41 and the second limiting block 42, and the first side and the second side of the positioning shaft 3 are respectively clamped in the groove of the first limiting block 41 and the groove of the second limiting block 42. A plurality of recesses on the first stopper 41 and a plurality of recesses on the second stopper 42 are all arranged from top to bottom to when not co-altitude piston location place with the recess of piston looks adaptation height with the adaptation ground, thereby realized can be to the effect of a plurality of model piston compatible location.

Referring to fig. 1 to fig. 3, the tooling for positioning a piston according to the present invention may further include: the piston clamp 2 comprises a driving block 21 and a clamping block 22 for releasably clamping the piston, wherein a threaded rod is arranged on the driving block 21, and one end of the threaded rod is rotatably connected with the clamping block 22. Of course, the driving manner of the clamping block 22 may also adopt an air cylinder, for example, the air cylinder is disposed on the base 1, the clamping block 22 is connected with the acting arm of the air cylinder, and a person skilled in the art can select the driving manner of the clamping block 22 according to actual needs.

Referring to fig. 1 to fig. 3, the tooling for positioning a piston according to the present invention may further include: the middle parts of the first end 11 and the second end 12 of the base 1 are provided with guide grooves, the clamping blocks 22 are arranged in the guide grooves and can slide along the guide grooves, and the guide grooves have the function of guiding the clamping blocks 22 to the middle parts of the piston placing parts 13.

The above description is only for the purpose of illustrating a few embodiments of the present invention, and should not be taken as limiting the scope of the present invention, in which equivalent changes, modifications, or scaling up or down, etc. made in accordance with the spirit of the present invention should be considered as falling within the scope of the present invention.

Claims

1. The tool for positioning the piston is characterized by comprising a base (1), two piston clamps (2), a plastic positioning shaft (3) and a shaft seat (4), wherein the two piston clamps (2) are respectively and oppositely arranged at a first end (11) and a second end (12) of the base (1), a piston placing part (13) is arranged in the center of the base (1), the piston placing part (13) is positioned between the two piston clamps (2), the shaft seat (4) is arranged at a third end (14) of the base (1) adjacent to the first end (11) and the second end (12), the shaft seat (4) is oppositely arranged with the center of the piston placing part (13), one end of the plastic positioning shaft (3) is detachably arranged on the shaft seat (4) in a manner that the shaft seat can be adjusted up and down, and the other end of the plastic positioning shaft (3) is configured to be arranged on a piston pin hole in a penetrating manner, the diameter of the plastic positioning shaft (3) is matched with the diameter of the piston pin hole.

2. The tool for positioning the piston as claimed in claim 1, wherein the piston placing portion (13) is a profiling limiting groove matched with the bottom shape of the piston.

3. The tooling for positioning the piston as claimed in claim 1, wherein the plastic positioning shaft (3) is a solid shaft made of nylon.

4. The tool for positioning the piston as claimed in claim 1, wherein the shaft seat (4) comprises a first limiting block (41) and a second limiting block (42), the first limiting block (41) is fixedly arranged on the third end (14), the second limiting block (42) is adjustably arranged on the third end (14), and the first limiting block (41) and the second limiting block (42) are jointly configured to releasably clamp one end of the plastic positioning shaft (3).

5. The tool for positioning the piston as claimed in any one of claims 1 to 4, wherein the piston clamp (2) comprises a driving block (21) and a clamping block (22) for releasably clamping the piston, a threaded rod is arranged on the driving block (21), and one end of the threaded rod is rotatably connected with the clamping block (22).

6. The tool for positioning the piston as recited in claim 5, characterized in that a guide groove is formed in the middle of each of the first end (11) and the second end (12) of the base (1), and the clamping block (22) is arranged in the guide groove and can slide along the guide groove.