CN218822136U

CN218822136U - Crankshaft forging balancing piece deformation checking fixture

Info

Publication number: CN218822136U
Application number: CN202223234580.XU
Authority: CN
Inventors: 廖德侃; 彭添; 李佳玲; 黎俞坚; 黄日晖
Original assignee: Guilin Fuda Heavy Industry Forging Co ltd
Current assignee: Guilin Fuda Heavy Industry Forging Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-04-07
Anticipated expiration: 2032-12-05

Abstract

The utility model belongs to bent axle production detection instrument field specifically is a bent axle forging balancing piece warp examines a serial communication port, including workstation, bent axle supporting component and detection seat, the workstation is equipped with the slide rail, and bent axle supporting component deploys at the middle part of workstation, and bent axle supporting component includes V-arrangement strut, horizontal saddle, and the V-arrangement strut is equipped with two, and along the front and back direction interval deployment, two detection seats deploy respectively on the slide rail on bent axle supporting component's left and right side, detect the seat including installing the detection piece on the pedestal, detect the piece and be equipped with two vertical recesses side by side, be equipped with 4 detection dogtooths on two lateral walls in the recess, four vertical recesses of detection seat are equipped with a benchmark recess, be equipped with the location in the benchmark recess and divide the device, should examine whether qualified detection to bent axle forging balancing piece deflection, have simple structure, easy to operate, the reliable advantage of testing result.

Description

Crankshaft forging balancing piece deformation checking fixture

Technical Field

The utility model belongs to bent axle production detection instrument field specifically is a bent axle forging balancing piece warp examines utensil.

Background

The crankshaft is a core component of an engine, the side surface position of a balance block of a crankshaft finished product needs to be machined, a blank surface is not allowed to exist after machining, but the crankshaft forge piece is formed through forging, and the wrong modulus, straightness, deformation and the like of the forge piece directly affect the forge piece machining. At present, the machining allowance design of the crankshaft forging is more and more fine, the machining allowance design on the side face of a balance block of the crankshaft forging is about 1mm, when the forging has die staggering, bending or deformation, the machining allowance is the minimum and the influence of deformation is the maximum at the top (tip parts of two sides) of the balance block, and the risk that machining cannot be carried out is the highest. And at present, the deformation size of the forged piece is generally checked by marking or three-coordinate sampling in the forging process, the detection mode is long in time, the forged piece cannot be 100% detected, and the quality of the crankshaft cannot be fully guaranteed.

Disclosure of Invention

The invention aims to provide a crankshaft forging balance block deformation detection tool which is simple in structure, rapid in detection and easy to operate.

The technical scheme for achieving the aim of the invention comprises the following contents.

A crankshaft forging balance block deformation detection tool comprises a workbench, two detection seats and a crankshaft support assembly, wherein slide rails are arranged on the top surface of the workbench along the left-right direction, the crankshaft support assembly is arranged in the middle of the workbench, the crankshaft support assembly comprises V-shaped brackets and horizontal brackets, the V-shaped brackets are arranged at intervals along the front-back direction, the horizontal brackets are arranged on the workbench between the two V-shaped brackets, the two detection seats are respectively arranged on the slide rails on the left side and the right side of the crankshaft support assembly, each detection seat comprises a seat body and a detection block arranged on the seat body, the seat body can be slidably arranged on the slide rails, the detection blocks are parallelly provided with two vertical grooves, the openings of the grooves face the middle of the workbench, 4 detection convex teeth are arranged on two side walls in the grooves, 1 detection convex tooth is respectively arranged at an upper interval and a lower interval on each side wall, the detection convex teeth of the two side walls are symmetrically arranged, the distance between the top ends of the two detection teeth corresponding to the two side walls is the maximum thickness designed for the positions of the balance block corresponding to the positions, four grooves of the detection seats correspond to four balance blocks, a groove is provided with a groove, a positioning device, the two guide blocks are arranged at intervals along the vertical direction, and the guide blocks are arranged on the top surface of the two guide blocks arranged on the two side walls of the two guide blocks; when detecting the bent axle forging, the bent axle forging level is placed, and its main journal is supported by two V-arrangement strut, connecting rod neck of horizontal saddle bearing, and the horizontality is personally submitted in the parting of the balancing piece relative with the benchmark recess, and the seat is detected in the promotion of bent axle forging, if the bent axle forging balancing piece is qualified, the direction inclined plane of two guide blocks is in the front and back side of the upper and lower difference butt balancing piece excircle of parting surface, and the detection dogtooth in all recesses can pass through two points of balancing piece simultaneously.

Further, the limiting block is further included and arranged on the workbench between the two V-shaped supporting frames. During detection, when the detection seat is abutted to the limiting block, the detection convex teeth pass through the upper tip part and the lower tip part of the balancing block, so that the detection seat without the reference groove is limited.

Furthermore, the slide rail is equipped with two, and two slide rails are the interval and set up side by side around.

When the crankshaft forging balance block deformation checking fixture is used, firstly, a crankshaft forging to be tested is placed on a crankshaft support assembly in the middle of a workbench, the crankshaft forging is moved in the axial direction, the balance block is approximately aligned with a reference groove, a detection seat with the reference groove is pushed towards the crankshaft forging along a sliding rail, one side of the excircle of the balance block is firstly contacted with a guide inclined plane of a guide block on one side wall in the reference groove, the crankshaft forging moves in the axial direction under the action of the guide inclined plane, and finally, if the size of the balance block is qualified, the other side of the excircle of the balance block is abutted to the guide inclined plane of the guide block on one side wall in the reference groove, so that the axial centering of the crankshaft is realized, when the detection seat moves towards the crankshaft forging piece, the detection convex teeth corresponding to the two side walls in the groove respectively detect the thicknesses of the upper tip part and the lower tip part of the balance block, if the thicknesses of the upper tip part and the lower tip part are smaller than the designed maximum thickness, the detection seat can be continuously pushed towards the center of the crankshaft until the front side and the rear side of the excircle of the balance block are respectively abutted against the guide inclined planes of the two guide blocks, at the moment, the upper detection convex teeth and the lower detection convex teeth pass through the upper tip part and the lower tip part of the balance block, so that the deformation of the two balance blocks detected by the detection seat with the reference groove meets the requirements, the rest balance blocks can be further detected, and otherwise, the deformation of the balance block of the crankshaft forging piece is unqualified; another detection seat is moved again to detect corresponding balancing piece, because the bent axle has been divided the centre in the axial and is fixed a position, should detect the seat and move the in-process towards bent axle forging center, as long as the detection convex tooth in the recess all can through the upper and lower two tip portions that correspond the balancing piece can, through, then can judge that this detects the balancing piece deflection that the seat corresponds meets the requirements, otherwise is unqualified.

The utility model discloses a whether the axial thickness that detects two points of balancing piece closes the rule and evaluates whole balancing piece and warp and meet the requirements, utilized balancing piece point portion in whole balancing piece warp its deflection biggest characteristics, whether can follow the audio-visual result that passes through between two detection dogtooths that have the fixed spacing with balancing piece point portion, judge whether the axial thickness of two points of balancing piece is qualified, it is reliable to have the result, easy to operate, the advantage that detection efficiency is high, can realize 100% detection to the product, thereby product quality has been guaranteed.

The maximum thickness of the design of the balance block corresponding to the position of the tip refers to the maximum axial thickness of the design of the tip of the balance block at the corresponding height by taking the distance between the detection convex tooth and the parting surface as reference.

Drawings

FIG. 1 is a schematic structural view of a crankshaft forging balance weight deformation inspection device of an embodiment;

FIG. 2 is a schematic diagram of a detection block with a reference groove according to an embodiment;

FIG. 3 is a top view of the crankshaft forging balance weight deformation gauge of the embodiment in a use state;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic structural view of a crankshaft forging.

In the figure, 1, a workbench; 1-1, sliding rail; 2. a detection seat; 2-1, detecting the block; 3. a V-shaped support frame; 4. a horizontal saddle; 5. a limiting block; 6. a groove; 6-1, a reference groove; 7. detecting the convex teeth; 8. a guide block; 8-1, guiding the inclined plane; 9. a crankshaft forging; 9-1. Balance weight tip.

Detailed Description

The present invention will be described in detail with reference to examples.

Referring to fig. 1 to 5, a crankshaft forging balance block deformation detection tool comprises a workbench 1, two detection seats 2, a crankshaft support assembly and a limiting block 5, wherein the top surface of the workbench 1 is provided with two parallel slide rails 1-1 along the left-right direction, the crankshaft support assembly is arranged in the middle of the workbench 1 and comprises two V-shaped brackets 3 and two horizontal brackets 4, the V-shaped brackets 3 are arranged at intervals along the front-rear direction, the horizontal brackets 4 are arranged on the workbench 1 between the two V-shaped brackets 3, the limiting block 5 is arranged on the workbench 1 between the two V-shaped brackets 3, the two detection seats 2 are respectively arranged on the slide rails 1-1 on the left side and the right side of the crankshaft support assembly, the detection seats 2 comprise seat bodies and detection blocks 2-1 arranged on the slide rails 1-1, the seat bodies are slidably arranged on the slide rails 1-1, the detection blocks 2-1 are provided with two vertical grooves 6 in parallel, the openings of the grooves 6 face the middle part of the

workbench

1, 4 detection convex teeth 7 are arranged on two side walls in the grooves 6, the detection convex teeth 7 of the embodiment are composed of steel columns and adjusting positioning pins connected with the steel columns, the adjusting positioning pins are arranged in through holes on the side walls, 1 detection convex tooth 7 is respectively arranged on each side wall at intervals from top to bottom, the detection convex teeth 7 of the two side walls are symmetrically arranged, the distance between the top ends of the two detection convex teeth 7 corresponding to the two side walls is the maximum thickness designed by the position of the tip part corresponding to the balance block, four vertical grooves 6 of the detection seat 2 correspond to the positions of the four balance blocks of the crankshaft forging 9, the groove close to the center on the right detection seat 2 of the embodiment is a reference groove 6-1, a positioning centering device is arranged in the reference groove 6-1, and comprises two guide blocks 8 respectively arranged on the two side walls, the two guide blocks 8 are arranged at intervals along the up-down direction, the guide blocks 8 become thinner gradually towards the opening direction of the groove 6, and the top surfaces of the guide blocks form guide inclined surfaces 8-1 which are inclined relative to the side walls; when detecting the crankshaft forging 9, the crankshaft forging 9 is horizontally placed, a main journal of the crankshaft forging is supported by the two V-shaped brackets 3, the horizontal bracket 4 supports a connecting rod neck, the parting surface of the balance block opposite to the reference groove 6-1 is in a horizontal state, the detection seat 2 is pushed towards the crankshaft forging 9, if the deformation of the balance block of the crankshaft forging 9 is qualified, the guide inclined planes 8-1 of the two guide blocks 8 are respectively abutted to the front side and the rear side of the excircle of the balance block above and below the parting surface, and meanwhile, the detection convex teeth 7 in all the grooves 6 can pass through the two tip parts of the balance block.

When the crankshaft forging balance block deformation checking fixture is used, firstly, a crankshaft forging 9 to be tested is horizontally placed on a crankshaft support assembly in the middle of a workbench 1, a V-shaped support 3 supports a main journal to complete radial positioning, a horizontal support 4 supports a connecting rod journal to complete circumferential positioning, the crankshaft forging piece 9 is moved along the axial direction, the balance block is approximately aligned with the reference groove 6-1, the right detection seat 2 is pushed towards the left along the slide rail 1-1, one side of the excircle of the balance block is firstly contacted with the guide inclined surface 8-1 of the guide block 8 on one side wall in the reference groove 6-1, under the action of the guide inclined plane 8-1, the crankshaft forging 9 moves axially (towards the guide block 8 on the other side wall) relatively towards the moving edge of the bottom of the groove, if the size of the balance block is qualified, finally the guide inclined planes 8-1 of the two guide blocks 8 are respectively abutted against the front side and the rear side of the excircle of the balance block at the upper part and the lower part of the parting plane, thereby realizing the axial centering and positioning of the crankshaft forging 9, when the right detection seat 2 moves towards the crankshaft forging 9, the thickness of the upper tip part and the lower tip part of the balance block are respectively detected by the detection convex teeth 7 corresponding to the two side walls in the vertical groove 6, if the thickness of the upper tip part and the lower tip part is smaller than the designed maximum thickness, the detection seat 2 can be continuously pushed towards the center of the crankshaft until the front side and the rear side of the excircle of the balance block are respectively abutted against the guide inclined surfaces 8-1 of the two guide blocks 8, the upper and lower detection convex teeth pass through the upper and lower tip parts of the balance blocks, which shows that the deformation of the two balance blocks detected by the right detection seat 2 meets the requirement, the remaining balance blocks can be further detected, otherwise, the deformation of the balance blocks of the crankshaft forging 9 is judged to be unqualified; promote the left side again and detect seat 2 and move right, because the bent axle is in the axial location of dividing, should detect seat 2 and move the in-process towards bent axle forging 9 center, as long as the detection dogtooth 7 in the recess 6 all can through the upper and lower two sharp portions that correspond the balancing piece can, detect dogtooth 7 and pass through balancing piece sharp portion 9-1 back, the seat body right edge butt stopper 5 that seat 2 was detected on the left side, it is spacing to detect seat 2 and is blocked, it states that two balancing piece deflection meet the requirements that left detection seat 2 detected, otherwise is unqualified.

The crankshaft forging balance block deformation inspection device can rapidly detect whether the deformation of the crankshaft forging 9 balance block is qualified or not, and has the advantages of simple structure, easiness in operation and reliable detection result.

Claims

1. A crankshaft forging balance block deformation checking fixture is characterized by comprising a workbench, two checking seats and a crankshaft support assembly,

the top surface of the workbench is provided with a slide rail along the left and right directions,

the crankshaft support assembly is arranged in the middle of the workbench and comprises two V-shaped brackets and two horizontal supporting platforms, the two V-shaped brackets are arranged at intervals along the front and back direction, the horizontal supporting platforms are arranged on the workbench between the two V-shaped brackets,

the detection seat comprises a seat body and detection blocks arranged on the seat body, the seat body can be arranged on the slide rail in a sliding mode, the detection blocks are provided with two vertical grooves in parallel, openings of the grooves face the middle of the workbench, 4 detection convex teeth are arranged on two side walls in the grooves, 1 detection convex tooth is arranged on each side wall at an upper interval and a lower interval, the detection convex teeth of the two side walls are symmetrically arranged, the distance between the top ends of the two detection convex teeth corresponding to the two side walls is the maximum thickness designed by the position of a tip corresponding to the balance weight, four vertical grooves of the detection seat correspond to the positions of four balance weights of the crankshaft forging and are provided with a reference groove, a positioning centering device is arranged in the reference groove and comprises two guide blocks respectively arranged on the two side walls, the two guide blocks are arranged at intervals in the upper direction and the lower direction, the guide blocks become thinner gradually towards the opening direction of the grooves, and the top surfaces of the guide blocks form inclined guide inclined opposite side walls;

when detecting the bent axle forging, the bent axle forging level is placed, and its main journal is supported by two V-arrangement strut, connecting rod neck of horizontal saddle bearing, and the horizontality is personally submitted in the parting of the balancing piece relative with the benchmark recess, and the seat is detected in the promotion of bent axle forging, if the bent axle forging balancing piece is qualified, the direction inclined plane of two guide blocks is in the front and back side of the upper and lower difference butt balancing piece excircle of parting surface, and the detection dogtooth in all recesses can pass through two points of balancing piece simultaneously.

2. The crankshaft forging balance block deformation inspection device according to claim 1, further comprising a limiting block, wherein the limiting block is arranged on the workbench between the two V-shaped brackets, and during detection, when the detection seat abuts against the limiting block, the detection convex teeth pass through the upper tip portion and the lower tip portion of the balance block, so that the detection seat without the reference groove is limited.

3. The crankshaft forging balance weight deformation checking fixture according to claim 1, wherein two slide rails are arranged, and the two slide rails are arranged in parallel at intervals in the front-back direction.