CN217020217U

CN217020217U - Crankshaft press-fitting tool

Info

Publication number: CN217020217U
Application number: CN202220914294.9U
Authority: CN
Inventors: 黄伟
Original assignee: Chongqing Weifu Machinery Co ltd
Current assignee: Chongqing Weifu Machinery Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-07-22
Anticipated expiration: 2032-04-15

Abstract

The utility model discloses a crankshaft press-fitting tool which comprises an upper clamp and a lower clamp which are arranged up and down, wherein the upper clamp is arranged below a press head of a press through an upper clamp seat, the lower clamp is arranged above the press base through a lower clamp seat, the upper clamp and the lower clamp are identical in structure and are arranged oppositely up and down, the upper clamp and the lower clamp respectively comprise a positioning pin and a base arranged on the corresponding clamp seat, the positioning pin is arranged on the corresponding clamp seat through a jacking cylinder and can move up and down in the base, a notch for inserting a half shaft is formed in the middle of the base, clamping cylinders capable of clamping the half shaft are arranged on either of the left side and the right side of the notch, and each clamping cylinder is connected with a control switch capable of controlling the action in series through an electric wire. During press fitting, the half shaft does not need to be held, so that the quality of press-fitting products can be effectively guaranteed, dangerous actions such as hand pressing and the like can be prevented, the operation is simple, and the requirement on workers is not high.

Description

Crankshaft press-fitting tool

Technical Field

The utility model belongs to the technical field of crankshaft machining equipment, and particularly relates to a crankshaft press-fitting tool.

Background

The crankshaft can be divided into three types, namely integral forging, integral casting and combination, according to the structural form, the combined crankshaft usually consists of an output half shaft, a crank pin and an input half shaft, and after the corresponding input half shaft, output half shaft and crank pin are processed, the crank pin is correspondingly pressed between the two half shafts through a press. In the prior art, during press mounting, a corresponding half shaft is placed on a press head and a press base of a press, then the half shaft placed at the upper end is supported by two hands, the press is started, and a crank pin is correspondingly pressed between the two half shafts. In the assembly process, the requirement on the workers who perform the operation is high, and dangerous actions of pressing hands occur due to irregular operation or reworking occurs when the sleeves are pressed into products.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide the crankshaft press-fitting tool, during press-fitting, a half shaft does not need to be held, so that the quality of press-fitted products can be effectively ensured, dangerous actions such as hand pressing and the like can be prevented, the operation is simple, and the requirement on workers is not high.

Therefore, the technical scheme adopted by the utility model is as follows: a crankshaft press-fitting tool comprises an upper clamp and a lower clamp which are arranged up and down, wherein the upper clamp is arranged below a press head of a press through an upper clamp seat, the lower clamp is arranged above the press base through a lower clamp base, the upper clamp and the lower clamp are the same in structure and are arranged oppositely up and down, the lower clamp and the upper clamp respectively comprise a positioning pin and a base arranged on the corresponding clamp base, the positioning pin is arranged on the corresponding clamp base through a jacking cylinder, and the positioning pin can move up and down in the base, the middle part of the base is provided with a notch for inserting the half shaft, clamping cylinders capable of clamping the half shafts are arranged on either side of the left side and the right side of the notch, each clamping cylinder is connected with a control switch capable of controlling the action in series through an electric wire, the control switch of the upper clamp is arranged on the front side face of the corresponding base, and the control switch of the lower clamp is arranged on the position, close to the lower end, of the front side face of the press base.

Preferably, the front side surface of the notch is opened, the control switch of the upper jig is disposed at a position close to the opening of the notch, and the positioning pin is disposed at a position close to the rear side of the notch.

Further preferably, the bottom surface of the upper clamp seat is rectangular and is provided with a guide sleeve, a guide post is arranged at a position corresponding to the guide sleeve on the lower clamp seat, and the guide sleeve is sleeved at the upper end of the guide post.

Further preferably, the base is provided with a rectangular equal-height seat for limiting the pressing distance of the press.

Further preferably, the base comprises a bottom plate and a cover plate, the bottom plate is installed on the corresponding clamp seat, and the clamping cylinder is arranged on the bottom plate and covered by the cover plate.

Further preferably, the upper side of the front side surface of the press base is provided with a shelf extending forwards.

Preferably, the press machine is further provided with proximity switches which are respectively connected with all the jacking cylinders and all the clamping cylinders in series through electric wires, and the proximity switches are arranged on the side face of the press machine base through a support.

The utility model has the beneficial effects that: inserting the position of the half shaft corresponding to the positioning pin into the notch groove, then pressing the control switch, pressing the half shaft in the notch groove by the driving clamping cylinder, clamping the other half shaft in the upper clamp in the same operation, then inserting the crank pin into the crank pin hole of the upper half shaft of the lower clamp, and finally starting the press to complete the press mounting of the crankshaft; during press fitting, the half shaft does not need to be held, so that the quality of press-fitting products can be effectively guaranteed, dangerous actions such as hand pressing and the like can be prevented, the operation is simple, and the requirement on workers is not high.

Drawings

FIG. 1 is a schematic view of the present invention.

Detailed Description

The utility model will be further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in figure 1, the crankshaft press-fitting tool mainly comprises an upper clamp A and a lower clamp B which are arranged up and down, wherein the upper clamp A is arranged below a press head 2 of a press through an upper clamp seat 1, and the lower clamp B is arranged above a press seat 4 through a lower clamp seat 3.

Go up anchor clamps A and lower anchor clamps B's the same and relative setting from top to bottom of structure, all include locating pin 6 and the base 5 of setting on corresponding anchor clamps seat, locating pin 6 sets up on the anchor clamps seat that corresponds through jacking cylinder 7, and locating pin 6 can reciprocate in base 5, be provided with at the middle part of base 5 and supply the inserted scarce groove 5a of semi-axis, arbitrary side is provided with the die clamping cylinder 8 that can press from both sides the semi-axis tight in the left and right sides of scarce groove 5a, every die clamping cylinder 8 all establishes ties through the electric wire has a control switch 9 that can control the action, the control switch 9 of going up anchor clamps A sets up on the leading flank that corresponds base 5, the control switch setting of lower anchor clamps B is close to lower extreme position department at the leading flank of press from top to bottom 4.

To facilitate the installation of the half shaft, the front side surface of the notch 5a is opened, the control switch 9 of the upper clamp a is arranged at the opening position near the notch 5a, and the positioning pin 6 is arranged at the position near the rear side of the notch 5 a.

In order to ensure that the upper clamp does not deviate when being pressed downwards, the bottom surface of the upper clamp seat 1 is rectangular, the guide sleeve 10 is arranged, the guide post 11 is arranged at the position, corresponding to the guide sleeve 10, on the lower clamp seat 1, and the guide sleeve is sleeved at the upper end of the guide post 11.

In order to prevent the upper clamp from being excessively pressed downwards when the upper clamp is pressed downwards under the action of the pressure head, equal-height seats 12 are arranged on the bases 5 of the upper clamp and the lower clamp in a rectangular mode, and the equal-height seats of the upper clamp and the equal-height seats of the lower clamp are arranged oppositely.

The concrete structure of base 5 includes that bottom plate 5b and apron 5c constitute, and bottom plate 5b installs on the anchor clamps seat that corresponds, and die clamping cylinder 8 sets up on bottom plate 5b and is covered by apron 5c, and the trachea and the electric wire that can realize the cylinder are covered by the apron, improve the security.

In order to facilitate the use of each half shaft nearby, a forward extending object placing plate 13 is arranged on the upper side of the front side surface of the press base 4. When the semi-axle clamp is used, a pair of corresponding semi-axles can be placed on the object placing plate, so that the semi-axles can be quickly pressed on corresponding clamps (the time for taking the semi-axles is shortened from two times to the time for placing the semi-axles, the time for taking the semi-axles is changed into one time, and the taking distance is shortened).

In order to facilitate the half shaft to be taken down when the press is not pressed, the press is also provided with a proximity switch 14 which is connected with all the jacking cylinders 7 and all the clamping cylinders 8 in series through electric wires respectively, the proximity switch 14 is arranged on the side surface of the press base 4 through a bracket 15, and the proximity switch 14 adopts a four-way normally closed switch and a proximity switch. All the jacking cylinders and the clamping cylinders can return through the metal sheet close to the contact switch, namely the half shaft is not clamped and the positioning pin is not retracted into the base.

The specific press fitting process of the tool is as follows:

1. firstly, mounting a half shaft on a lower clamp, enabling a crank of the half shaft to face upwards, enabling a crank pin hole to be aligned with a positioning pin and inserted into a slot of the lower clamp, then pressing the crank, then pressing a control switch of the lower clamp, enabling a clamping cylinder in the lower clamp to work, clamping the half shaft, then enabling a jacking cylinder of the lower clamp to work, and driving the positioning pin to retreat into a base;

2. installing the other half shaft on an upper clamp, enabling a crank of the half shaft to face downwards, enabling a crank pin hole to be aligned with a positioning pin and inserted into a notch of the upper clamp, then pressing the crank, then pressing a control switch of the upper clamp, enabling a clamping cylinder in the upper clamp to work, clamping the half shaft, then enabling a jacking cylinder of the upper clamp to work, and driving the positioning pin to retreat into a base;

3. the crank pin with the connecting rod is correspondingly inserted into a crank pin hole of an upper half shaft of the lower clamp, then a switch of the press is pressed, the upper clamp moves downwards under the action of the press head, after press fitting is completed, the upper clamp returns under the action of the press head, then a jacking cylinder in the lower clamp works, the positioning pin returns, the crankshaft is ejected out, and the jacking cylinder of the upper clamp drives the positioning pin to return.

Claims

1. The utility model provides a bent axle pressure equipment frock which characterized in that: comprises an upper clamp (A) and a lower clamp (B) which are arranged from top to bottom, wherein the upper clamp (A) is arranged below a press head (2) of a press through an upper clamp seat (1), the lower clamp (B) is arranged above a press base (4) through a lower clamp seat (3), the upper clamp (A) and the lower clamp (B) are identical in structure and are arranged oppositely from top to bottom, and respectively comprise a positioning pin (6) and a base (5) arranged on the corresponding clamp seat, the positioning pin (6) is arranged on the corresponding clamp seat through a jacking cylinder (7), the positioning pin (6) can move up and down in the base (5), a slot (5a) for half shaft insertion is formed in the middle of the base (5), a clamping cylinder (8) capable of clamping the half shaft is arranged on any one of the left side and the right side of the slot (5a), and each clamping cylinder (8) is connected in series through an electric wire with a control switch (9) capable of controlling the action, the control switch (9) of the upper clamp (A) is arranged on the front side face of the corresponding base (5), and the control switch of the lower clamp (B) is arranged on the front side face of the press base (4) close to the lower end.

2. A crankshaft press-fitting tool as claimed in claim 1, wherein: the front side surface of the notch (5a) is provided with an opening, the control switch (9) of the upper clamp (A) is arranged at the opening position close to the notch (5a), and the positioning pin (6) is arranged at the position close to the rear side of the notch (5 a).

3. The crankshaft press fitting tool according to claim 1, characterized in that: the bottom surface of going up anchor clamps seat (1) is the rectangle and has arranged uide bushing (10), the position department that corresponds uide bushing (10) on anchor clamps seat (3) down sets up guide post (11), and uide bushing (10) suit is in the upper end of guide post (11).

4. The crankshaft press fitting tool according to claim 1, characterized in that: the base (5) is provided with a rectangular equal-height seat (12) for limiting the pressing distance of the press.

5. The crankshaft press fitting tool according to claim 1, characterized in that: the base (5) comprises a bottom plate (5b) and a cover plate (5c), the bottom plate (5b) is installed on the corresponding clamp seat, and the clamping cylinder (8) is arranged on the bottom plate (5b) and covered by the cover plate (5 c).

6. The crankshaft press fitting tool according to claim 1, characterized in that: and the upper side of the front side surface of the press base (4) is provided with a storage plate (13) extending forwards.

7. A crankshaft press-fitting tool as claimed in claim 1, wherein: and the device is also provided with a proximity switch (14) which is respectively connected with all the jacking cylinders (7) and all the clamping cylinders (8) in series through electric wires, and the proximity switch (14) is arranged on the side surface of the press base (4) through a bracket (15).