CN219213005U

CN219213005U - Piston pin press-fitting tool

Info

Publication number: CN219213005U
Application number: CN202223320650.3U
Authority: CN
Inventors: 陈绪浩
Original assignee: Hubei Boying Precision Technology Co ltd
Current assignee: Hubei Boying Precision Technology Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-20
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a piston pin press-fitting tool which comprises a piston supporting seat, a connecting rod, a piston pin body and a base, wherein a first positioning mechanism is arranged above the base and comprises a bidirectional screw rod, one end of the bidirectional screw rod is fixedly connected with a cylindrical handle, the outer surface of the bidirectional screw rod is rotatably connected with a U-shaped supporting seat, the bottom surface of the U-shaped supporting seat is fixedly connected with the upper surface of the base, the bottom surface of the piston supporting seat is contacted with the upper surface of the U-shaped supporting seat, and a second positioning mechanism is arranged on the right side of the piston supporting seat. This frock can be when carrying out the pressure equipment to the wrist pin body, and the location is more accurate, improves pressure equipment precision and effectively improves product quality and work efficiency, through setting up arc slipmat, can be more stable fix the piston supporting seat.

Description

Piston pin press-fitting tool

Technical Field

The utility model relates to the technical field of piston pin press-fitting, in particular to a piston pin press-fitting tool.

Background

The piston connecting rod assembly is a central part of the engine, and the assembly quality of the piston connecting rod assembly has direct influence on the working tightness and the service life of the cylinder. The piston connecting rod assembly generally comprises a piston, a piston pin and a connecting rod, wherein the connecting rod comprises a connecting rod body, a connecting rod cover, a connecting rod bolt, a connecting rod bearing bush and other parts, the connecting rod body is divided into a connecting rod small end, a rod body and a connecting rod large end, the connecting rod small end is used for installing the piston pin, and the piston drives the output shaft to rotate through the piston pin, so that the linear reciprocating motion of the piston is converted into the rotary motion of a crankshaft.

At present, the assembly process of the piston, the connecting rod and the piston pin generally adopts manual operation, and the general steps are that firstly, the piston or the small end of the connecting rod is heated, then the piston is arranged on a positioning plate, the piston pin hole is cleaned, the piston pin is pushed into the piston pin hole by hands, the small end of the connecting rod is penetrated into the piston, the piston pin is aligned with the pin hole of the small end of the connecting rod, and then the wooden hammer is used for knocking one end of the piston pin to enable the piston pin to pass through the pin hole of the small end of the connecting rod until the edge of the pin hole at the other end of the piston pin.

At present, the problems of inaccurate positioning, high assembly difficulty, low yield and low working efficiency exist when the piston pin is pressed and assembled; therefore, the piston pin press-fitting tool solves the problems.

Disclosure of Invention

The utility model aims to make up the defects of the prior art and provides a piston pin press-fitting tool.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a wrist pin pressure equipment frock, includes piston supporting seat, connecting rod, wrist pin body and base, the top of base is provided with first positioning mechanism, first positioning mechanism includes two-way lead screw, the one end fixedly connected with cylinder handle of two-way lead screw, the surface rotation of two-way lead screw is connected with U-shaped supporting seat, the bottom surface of U-shaped supporting seat and the last fixed surface of base are connected, the bottom surface of piston supporting seat contacts with the upper surface of U-shaped supporting seat, the right side of piston supporting seat is provided with second positioning mechanism.

Further, the upper surface of the U-shaped supporting seat is fixedly connected with a positioning ring, and the inner wall of the positioning ring is contacted with the outer surface of the piston supporting seat.

Further, the surface threaded connection of two-way lead screw has two screw plates, two the equal fixedly connected with slider of upper surface of screw plate, two equal sliding connection of slider is in the inside of U-shaped supporting seat.

Further, two the slider is kept away from the equal fixedly connected with movable plate of one side of two screw boards, two the equal fixedly connected with arc grip block of one side that movable plate is close to each other.

Further, two the equal fixedly connected with arc slipmat of one side that arc grip block is close to each other, two the one side that arc slipmat is close to each other all contacts with the surface of piston supporting seat.

Further, the second positioning mechanism comprises a bolt, the outer surface of the bolt is in threaded connection with a supporting plate, and the bottom surface of the supporting plate is fixedly connected with the upper surface of the base.

Further, the surface rotation of bolt is connected with the rectangular plate, the bottom surface of rectangular plate and the upper surface sliding connection of base, one side fixedly connected with positioning tube of bolt is kept away from to the rectangular plate, the inside at the positioning tube is pegged graft to the one end of wrist pin body.

Compared with the prior art, the piston pin press-fitting tool has the following beneficial effects:

1. according to the utility model, through the cooperation between the first positioning mechanism and the second positioning mechanism, when the piston pin body is pressed, the positioning is more accurate, the pressing precision is higher, and the operation is more convenient, so that the product quality and the working efficiency are effectively improved.

2. According to the utility model, through the cooperation among the bidirectional screw rod, the U-shaped supporting seat, the positioning ring, the threaded plate, the sliding block, the moving plate, the arc-shaped clamping plate and the arc-shaped anti-slip pad, when the bidirectional screw rod rotates clockwise, the arc-shaped clamping plate and the arc-shaped anti-slip pad can be driven to move towards the direction of the piston supporting seat, so that the piston supporting seat can be clamped and fixed, and the piston supporting seat can be more stably fixed through the arc-shaped anti-slip pad.

Drawings

FIG. 1 is a schematic perspective elevation view of the present utility model;

FIG. 2 is a schematic perspective view of a base and a first positioning mechanism according to the present utility model;

FIG. 3 is a schematic perspective view of a first positioning mechanism of the present utility model with a hidden U-shaped support base and a positioning ring;

fig. 4 is a schematic perspective view of the piston pin body and the second positioning mechanism of the present utility model.

In the figure: the device comprises a piston supporting seat 1, a connecting rod 2, a piston pin body 3, a base 4, a first positioning mechanism 5, a two-way screw rod 501, a U-shaped supporting seat 502, a positioning ring 503, a threaded plate 504, a sliding block 505, a moving plate 506, an arc-shaped clamping plate 507, an arc-shaped anti-slip pad 508, a second positioning mechanism 6, a bolt 601, a supporting plate 602, a rectangular plate 603 and a positioning cylinder 604.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Referring to fig. 1-4, the piston pin press-fitting tool comprises a piston supporting seat 1, a connecting rod 2, a piston pin body 3 and a base 4, wherein a first positioning mechanism 5 is arranged above the base 4, the first positioning mechanism 5 comprises a bidirectional screw rod 501, one end of the bidirectional screw rod 501 is fixedly connected with a cylindrical handle, the outer surface of the bidirectional screw rod 501 is rotationally connected with a U-shaped supporting seat 502, the bottom surface of the U-shaped supporting seat 502 is fixedly connected with the upper surface of the base 4, the bottom surface of the piston supporting seat 1 is contacted with the upper surface of the U-shaped supporting seat 502, and a second positioning mechanism 6 is arranged on the right side of the piston supporting seat 1.

Through the cooperation between first positioning mechanism 5 and the second positioning mechanism 6, when carrying out the pressure equipment to piston pin body 3, the location is more accurate, and the pressure equipment precision is higher, and it is more convenient to operate to product quality and work efficiency have effectively been improved.

The upper surface of the U-shaped supporting seat 502 is fixedly connected with a positioning ring 503, the inner wall of the positioning ring 503 is contacted with the outer surface of the piston supporting seat 1, and the positioning ring 503 is arranged, so that the piston supporting seat 1 can be rapidly placed at a designated position when the piston supporting seat 1 is positioned.

Specifically, the outer surface threaded connection of two-way lead screw 501 has two screw plates 504, the equal fixedly connected with slider 505 of upper surface of two screw plates 504, the equal sliding connection of two sliders 505 is in the inside of U-shaped supporting seat 502, the inside of U-shaped supporting seat 502 has seted up the first spout with slider 505 looks adaptation, when clockwise screwing the cylinder handle, can drive two screw plates 504 and remove to its direction that is close to each other, when anticlockwise screwing the cylinder handle, can drive two screw plates 504 and remove to its direction that is kept away from each other.

The two slider 505 keeps away from the equal fixedly connected with movable plate 506 of one side of two thread plates 504, the equal fixedly connected with arc grip block 507 of one side that two movable plates 506 are close to each other, the equal fixedly connected with arc slipmat 508 of one side that two arc grip blocks 507 are close to each other, the one side that two arc slipmats 508 are close to each other all contacts with the surface of piston supporting seat 1, twist the cylinder handle clockwise, the cylinder handle can drive two-way lead screw 501 and rotate clockwise, two-way lead screw 501 can drive two thread plates 504, two arc grip blocks 507 and two arc slipmats 508 etc. to the direction removal of piston supporting seat 1, thereby can carry out the centre gripping to piston supporting seat 1 and fix, through setting up arc slipmat 508, can be more stable fix piston supporting seat 1.

In some specific embodiments, the second positioning mechanism 6 includes a bolt 601, an outer surface of the bolt 601 is in threaded connection with a supporting plate 602, a bottom surface of the supporting plate 602 is fixedly connected with an upper surface of the base 4, an outer surface of the bolt 601 is rotationally connected with a rectangular plate 603, a bottom surface of the rectangular plate 603 is slidably connected with the upper surface of the base 4, and a surface of the rectangular plate 603 away from the bolt 601 is fixedly connected with a positioning cylinder 604.

And, peg graft in the inside of a locating cylinder 604 in the one end of piston pin body 3, the second spout with rectangular plate 603 looks adaptation has been seted up to the upper surface of base 4, peg graft the one end of piston pin body 3 in the inside of a locating cylinder 604 and screw bolt 601 to the direction of piston supporting seat 1, bolt 601 can drive rectangular plate 603, a locating cylinder 604 and piston pin body 3 to the direction removal of piston supporting seat 1, thereby can make the one end of piston pin body 3 run through the inside pinhole of connecting rod 2 and peg graft in the inside of the inside piston pinhole of piston supporting seat 1.

When the device is used, the piston support seat 1 is firstly placed on the U-shaped support seat 502, the outer surface of the piston support seat 1 is contacted with the inner wall of the positioning ring 503, then the cylindrical handle is screwed clockwise, the cylindrical handle can drive the bidirectional screw rod 501 to rotate clockwise, the bidirectional screw rod 501 can drive the two thread plates 504, the two arc clamping plates 507, the two arc anti-slip pads 508 and the like to move towards the direction of the piston support seat 1, and the piston support seat 1 can be clamped and fixed;

then, one end of the connecting rod 2 for installing the piston pin body 3 is inserted into the piston supporting seat 1, and finally, one end of the piston pin body 3 is inserted into the positioning cylinder 604 and the bolt 601 is screwed in the direction of the piston supporting seat 1, and the bolt 601 can drive the rectangular plate 603, the positioning cylinder 604 and the piston pin body 3 to move in the direction of the piston supporting seat 1, so that one end of the piston pin body 3 can penetrate through a pin hole in the connecting rod 2 and be inserted into a piston pin hole in the piston supporting seat 1.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a wrist pin pressure equipment frock, includes piston supporting seat (1), connecting rod (2), wrist pin body (3) and base (4), its characterized in that: the top of base (4) is provided with first positioning mechanism (5), first positioning mechanism (5) are including two-way lead screw (501), the one end fixedly connected with cylinder handle of two-way lead screw (501), the surface rotation of two-way lead screw (501) is connected with U-shaped supporting seat (502), the bottom surface of U-shaped supporting seat (502) and the upper surface fixed connection of base (4), the bottom surface of piston supporting seat (1) contacts with the upper surface of U-shaped supporting seat (502), the right side of piston supporting seat (1) is provided with second positioning mechanism (6).

2. The wrist pin press-fit tooling of claim 1, wherein: the upper surface of the U-shaped supporting seat (502) is fixedly connected with a positioning ring (503), and the inner wall of the positioning ring (503) is contacted with the outer surface of the piston supporting seat (1).

3. The wrist pin press-fit tooling of claim 1, wherein: the outer surface threaded connection of two-way lead screw (501) has two thread boards (504), two the upper surface of thread board (504) is all fixedly connected with slider (505), two slider (505) are all sliding connection in the inside of U-shaped supporting seat (502).

4. The wrist pin press-fit tooling of claim 3, wherein: one surface of each slider (505) far away from each threaded plate (504) is fixedly connected with a movable plate (506), and one surface of each movable plate (506) close to each other is fixedly connected with an arc clamping plate (507).

5. The wrist pin press-fit tooling of claim 4, wherein: two arc grip blocks (507) are all fixedly connected with arc slipmat (508) in the one side that is close to each other, two arc slipmat (508) are all contacted with the surface of piston supporting seat (1) in the one side that is close to each other.

6. The wrist pin press-fit tooling of claim 1, wherein: the second positioning mechanism (6) comprises a bolt (601), the outer surface of the bolt (601) is in threaded connection with a supporting plate (602), and the bottom surface of the supporting plate (602) is fixedly connected with the upper surface of the base (4).

7. The wrist pin press-fit tooling of claim 6, wherein: the outer surface rotation of bolt (601) is connected with rectangular board (603), the bottom surface of rectangular board (603) and the upper surface sliding connection of base (4), one side fixedly connected with positioning tube (604) of bolt (601) is kept away from to rectangular board (603), the inside at positioning tube (604) is pegged graft to the one end of wrist pin body (3).