CN218495998U

CN218495998U - Crankshaft centering symmetry detection device

Info

Publication number: CN218495998U
Application number: CN202222395261.0U
Authority: CN
Inventors: 史金宇; 陈长兴
Original assignee: Xinchen Power Machinery Shenyang Co ltd
Current assignee: Xinchen Power Machinery Shenyang Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-02-17
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses a bent axle divides well symmetry detection device, examine utensil including the base with the measurement, measure and examine the utensil and include the body frame body, the big gauge stand of both ends difference fixedly connected with and little gauge stand of the body frame body, the first internal diameter table of the both ends of the body frame body respectively through big gauge stand and little gauge stand assembly and second internal diameter table, the middle part fixedly connected with fixed plate of the body frame body, the spacing axle of lateral wall fixedly connected with of fixed plate, the lateral wall fixed mounting of measuring arm has the gauge head, is equipped with the linkage subassembly between the lateral wall of the body frame body and two measuring arms. When examining the detection piece, earlier examine the size of utensil to standard shaft spare through measuring and measure, then the contrast is measured and is examined utensil to standard shaft spare and detection piece between the measured size difference, judges whether the detection piece accords with the standard requirement of product, through the utility model discloses symmetrical dimension detects in the branch of bent axle, and operation process is simple, convenient, has practiced thrift the time that detects, reduces the time cost that detects.

Description

Crankshaft centering symmetry detection device

Technical Field

The utility model relates to a bent axle detects technical field, concretely relates to bent axle divides well symmetry detection device.

Background

After the crankshaft is produced, the size of the crankshaft needs to be detected so as to determine whether the crankshaft meets the qualified standard of the product. When the traditional crankshaft dimension detection is carried out, the used detection method is to send the crankshaft into a precision measurement room and measure the distance between the third main journal rail of the crankshaft and the two end faces of the crankshaft through three coordinates, the measurement process is complicated, and more measurement time is wasted. Therefore, the crankshaft center-dividing symmetry detection device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a symmetry detection device in bent axle branch to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bent axle divides well symmetry detection device, includes the base and measures and examines a utensil, measure and examine a utensil and include the body frame body, the big gauge stand of fixedly connected with and little gauge stand respectively at the both ends of the body frame body, the first internal diameter table of big gauge stand and little gauge stand assembly and second internal diameter table are respectively passed through at the both ends of the body frame body, the middle part fixedly connected with fixed plate of the body frame body, the spacing axle of lateral wall fixedly connected with of fixed plate, the quantity of spacing axle is two, two the arm-measuring has been cup jointed respectively to the lateral wall of spacing axle, the lateral wall fixed mounting of arm-measuring has the gauge head, the lateral wall and two of the body frame body be equipped with the linkage subassembly between the arm-measuring.

Preferably, the linkage subassembly includes assembly jig and spacing, assembly jig and spacing fixed connection are at the lateral wall of the body frame body, the spacing groove has been seted up to the bottom of spacing, the spacing groove cup joints two outside the survey arm, sliding connection has the connecting rod that runs through to the spacing in the assembly jig, the bottom fixedly connected with conical head of connecting rod, fixed mounting has first spring, two between conical head and the spacing fixed mounting has the second spring between the survey arm.

Preferably, the top end of the connecting rod is fixedly connected with a handle block.

Preferably, the surface of the base is fixedly provided with a first placing frame, a second placing frame and a third placing frame.

Preferably, the outer walls of the two sides of the base are respectively and fixedly connected with a handle frame.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a bent axle divides well symmetry detection device, is provided with and is used for carrying out the base placed to standard axle spare and the detection piece that waits to detect, examines earlier through measuring to examine the size of utensil to standard axle spare and measure, then contrast measurement examines the size difference of examining measured between standard axle spare and the detection piece, judges whether the detection piece accords with the standard requirement of product, through the utility model discloses symmetrical size detects in the branch of bent axle, and operation process is simple, convenient, has practiced thrift the time that detects, reduces the time cost that detects.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a detailed view of fig. 1 at a.

Fig. 3 is a front view of the present invention.

Fig. 4 is a detailed view of fig. 3 at b.

In the figure: 1. the base, 2, measure and examine utensil, 21, the body frame, 22, big gauge stand, 23, little gauge stand, 24, first inside diameter table, 25, second inside diameter table, 26, fixed plate, 27, spacing axle, 28, survey arm, 29, gauge head, 3, first rack, 4, second rack, 5, third rack, 6, standard axle spare, 7, detection piece, 8, linkage subassembly, 81, assembly jig, 82, spacing, 83, spacing groove, 84, connecting rod, 85, cone head, 86, first spring, 87, second spring, 88, handle piece, 9, handle frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a technical solution: the utility model provides a bent axle divides well symmetry detection device, include base 1 and measure and examine utensil 2, welded fastening has handle frame 9 respectively at the both ends of base 1, conveniently remove base 1 through setting up handle frame 9, pass through the first rack 3 of fixing bolt fixedly connected with on the surface of base 1, second rack 4 and third rack 5, first rack 3, second rack 4 and third rack 5 adopt the V type piece of size difference to set up relatively respectively and form, first rack 3 is used for placing and examines utensil 2 to carry out the standard shaft spare 6 of zero calibration to the chi to measuring, second rack 4 is used for placing and measures and examines utensil 2, third rack 5 is used for placing and waits to detect a 7.

The standard shaft part 6 is a standard sample part manufactured according to the distance from the center of the width of the third main journal to the end face of the crankshaft finished product drawing, the distance from one end of the third main journal to the theoretical center of the crankshaft part is 212.99 +/-0.005 mm, and the distance from the other end of the third main journal to the end face of the third main journal is 194.77 +/-0.005 mm.

The measuring and detecting tool 2 comprises a main frame body 21, a large gauge seat 22 and a small gauge seat 23 at two ends of the main frame body 21 are respectively provided with a first inner diameter gauge 24 and a second inner diameter gauge 25, a fixing plate 26 is fixedly connected to the center of the main frame body 21 through a fixing bolt, a limiting shaft 27 is fixedly welded on the front side wall of the fixing plate 26, the number of the limiting shafts 27 is two, measuring arms 28 are respectively sleeved at the front ends of the two limiting shafts 27, the two measuring arms 28 are symmetrically arranged left and right, measuring heads 29 are respectively and fixedly installed on the outer side walls of the two measuring arms 28, in the using process, the third neck of a detecting piece 7 to be detected is respectively matched with the corresponding first inner diameter main gauge 24 and the second inner diameter gauge 25 through the two measuring heads 29 to measure the distance between the third neck and the two ends of the detecting piece 7, and whether the detecting piece 7 is a qualified product is judged.

The linkage assembly 8 is assembled between the front side wall of the main frame body 21 and the two measuring arms 28, the movement strokes of the two measuring arms 28 are controlled through the linkage assembly 8, the measuring head 29 arranged on the side wall of the measuring arm 28 is convenient to be attached to the side wall of the detection piece 7, and the matching measurement of the measuring head 29 with the first inner diameter gauge 24 and the second inner diameter gauge 25 is completed.

The linkage component 8 comprises an assembly frame 81 and a limiting frame 82, the assembly frame 81 and the limiting frame 82 are welded and fixed on the front side wall of the main frame body 21, a limiting groove 83 formed in the bottom of the limiting frame 82 is sleeved on the outer sides of the tops of the two measuring arms 28, the measuring arms 28 are limited in movement by arranging the limiting groove 83, a connecting rod 84 is inserted in the center of the assembly frame 81, the bottom end of the connecting rod 84 is fixedly connected with a conical head 85, a first spring 86 is fixedly assembled between the top of the conical head 85 and the limiting frame 82, a second spring 87 is fixedly assembled between the two measuring arms 28, the second spring 87 is positioned on the lower portions of the two measuring arms 28, as shown in fig. 4, the first spring 86 is in a compressed state, the second spring 87 is in a stretching state, the elastic force of the first spring 86 is greater than that of the second spring 87, downward pressure is generated on the conical head 85 through the first spring 86, the conical head 85 downwards extrudes the two measuring arms 82 to two sides respectively after being stressed, the two measuring heads 29 positioned on the outer sides of the measuring arms 28 are attached to the surface of the detection piece 7, the connecting rod 84 is pulled upwards to drive the conical head 85 to move upwards, the conical head 85 does not apply pressure on the measuring arms 28 any more, the two measuring arms 28 are retracted inwards due to the elastic force of the second spring 87 to be close, the measuring heads 29 are reset, and the measuring tool 2 can be conveniently separated from the standard shaft 6 or the detection piece 7.

In order to facilitate the upward pulling of the connecting rod 84, a handle block 88 is welded and fixed on the top of the connecting rod 84, and the handle block 88 is used to facilitate the movement of the connecting rod 84.

The working principle is as follows: in the using process, firstly, a standard shaft part 6 and a detection part 7 to be detected are respectively placed at the tops of a first placing frame 3 and a third placing frame 5, firstly, the measurement checking tool 2 is taken down, the measurement checking tool 2 is aligned with the standard shaft part 6 to perform zero calibration and ruler alignment once, a measuring head 29 of the measurement checking tool 2 is placed in an open slot at the middle part of the standard shaft part 6, then the positions of a first inner diameter gauge 24 and a second inner diameter gauge 25 are respectively adjusted, so that the first inner diameter gauge 24 and the second inner diameter gauge 25 respectively compress two ends of the standard shaft part 6, then zero calibration operation is performed on the first inner diameter gauge 24 and the second inner diameter gauge 25, then a connecting rod 84 is pulled upwards through a handle block 88 to separate a conical head 85 from a measuring arm 28, and the two measuring arms 28 are reset, then the measuring head 29 is placed at the third main journal stop of the detecting member 7, the handle block 88 is slowly released, the conical head 85 receives the elastic force from the first spring 86, the conical head 28 is squeezed towards two sides, the measuring head 29 is attached to the surface of the detecting member 7, the first inner diameter gauge 24 and the second inner diameter gauge 25 are respectively read, the distance between the center of the third main journal stop of the detecting member 7 and two ends is 212.99 +/-0.005 mm, the distance between the center of the third main journal stop of the detecting member 7 and the other end is 194.77 +/-0.005 mm, when the readings of the first inner diameter gauge 24 and the second inner diameter gauge 25 meet the standard, the quality of the detecting member 7 is qualified, and when the readings of the first inner diameter gauge 24 and the second inner diameter gauge 25 exceed the qualified standard, the quality of the detecting member 7 is unqualified.

Claims

1. The utility model provides a symmetry detection device in bent axle branch which characterized in that: the measuring and detecting tool comprises a base (1) and a measuring and detecting tool (2), wherein the measuring and detecting tool (2) comprises a main frame body (21), two ends of the main frame body (21) are fixedly connected with a large gauge stand (22) and a small gauge stand (23) respectively, two ends of the main frame body (21) are respectively provided with a first inner diameter gauge (24) and a second inner diameter gauge (25) through the large gauge stand (22) and the small gauge stand (23), a fixing plate (26) is fixedly connected to the middle of the main frame body (21), a limiting shaft (27) is fixedly connected to the side wall of the fixing plate (26), the number of the limiting shaft (27) is two, measuring arms (28) are respectively sleeved on the outer side wall of the limiting shaft (27), measuring heads (29) are fixedly installed on the outer side wall of the measuring arms (28), and linkage assemblies (8) are assembled between the side wall of the main frame body (21) and the measuring arms (28).

2. The crankshaft bisection symmetry detection apparatus according to claim 1, wherein: linkage subassembly (8) are including assembly bracket (81) and spacing (82), assembly bracket (81) and spacing (82) fixed connection are at the lateral wall of body frame body (21), spacing groove (83) have been seted up to the bottom of spacing (82), spacing groove (83) cup joint two survey arm (28) are outer, sliding connection has connecting rod (84) that runs through to spacing (82) in assembly bracket (81), the bottom fixedly connected with conical head (85) of connecting rod (84), fixed mounting has first spring (86), two between conical head (85) and spacing (82) survey fixed mounting has second spring (87) between arm (28).

3. The crankshaft bisecting symmetry detection apparatus as claimed in claim 2, wherein: the top end of the connecting rod (84) is fixedly connected with a handle block (88).

4. The crankshaft bisection symmetry detection apparatus according to claim 1, wherein: the surface of the base (1) is fixedly provided with a first placing frame (3), a second placing frame (4) and a third placing frame (5).

5. The crankshaft bisecting symmetry detection apparatus according to claim 1, wherein: the outer walls of two sides of the base (1) are respectively fixedly connected with a handle frame (9).