CN215413497U - Device for detecting coaxiality and size of inner frame and outer frame of scissor ascending truck - Google Patents

Abstract

The utility model discloses a device for detecting coaxiality and size of an inner frame and an outer frame of a scissor ascending vehicle. The coaxiality and size detection device for the inner frame and the outer frame of the scissor climbing vehicle can conveniently and rapidly detect the coaxiality condition of the inner frame and the outer frame, and meanwhile, the measurement accuracy is improved.

Description

Device for detecting coaxiality and size of inner frame and outer frame of scissor ascending truck

Technical Field

The utility model relates to the technical field of workpiece measurement, in particular to a coaxiality and size detection device for an inner frame and an outer frame of a scissor ascending truck.

Background

The scissor fork climbing vehicle is a common vehicle for high-class engineering, and is widely applied to construction sites, fire rescue and the like; due to the relative movement of the inner scissor and the outer scissor, if the size is in problem, the quality of the whole vehicle is abnormal, such as abnormal sound, clamping stagnation, stability, energy consumption and the like. Therefore, the size and the coaxiality of the inner frame and the outer frame have great influence on the assembly performance and the service performance of the whole vehicle. The existing method for measuring the coaxiality and the size of the inner frame and the outer frame is three-coordinate measurement. The three-coordinate measurement is to use a three-coordinate measuring machine to check and measure the form and position tolerance of the workpiece. The three-coordinate measurement needs to find a reference surface, and then the position of the inner frame shaft hole relative to the reference surface and the position of the outer frame shaft hole relative to the reference surface are measured respectively. Because the inner frame and the outer frame adopt factors such as machining before welding, blank surfaces and the like, certain errors exist by taking the bottom surfaces or the top surfaces of the inner frame and the outer frame as reference surfaces, the measuring result is not accurate enough, and the detection efficiency is lower.

How to improve the coaxiality detection efficiency of the inner frame and the outer frame of the scissor ascending vehicle becomes a technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for detecting coaxiality and size of an inner frame and an outer frame of a scissor ascending truck, which can improve the coaxiality detection efficiency and accuracy.

In order to achieve the purpose, the utility model provides a device for detecting coaxiality and size of an inner frame and an outer frame of a scissor ascending vehicle.

Optionally, at least three groups of equal-height brackets are arranged on the table top of the positioning base station, each group of equal-height brackets comprises two equal-height blocks which are oppositely arranged, and two ends of the positioning rod are respectively erected at the tops of the two equal-height blocks of one group of equal-height brackets.

Optionally, the longitudinal section of the equal-height block is in an i shape.

Optionally, the bottom of the contour block is horizontally attached to the positioning base.

Optionally, a pair of bushings is sleeved on the positioning rod, and each bushing is provided with a positioning boss for extending into an inner frame shaft hole or an outer frame shaft hole of the scissors ascending vehicle and a limiting base integrally arranged with the positioning boss.

Optionally, a dimension measuring component is further included to detect the position of the inner or outer axle hole.

Optionally, the dimensional measurement assembly comprises a height gauge and a vernier caliper.

Compared with the prior art, the coaxiality and size detection device for the inner frame and the outer frame of the scissor ascending vehicle provided by the utility model has the advantages that the reference surface is arranged by virtue of the positioning base station, then at least three groups of positioning rod pieces are respectively penetrated through the inner frame shaft hole and the outer frame shaft hole, two groups of positioning rod pieces penetrating through the inner frame shaft hole or the outer frame shaft hole can determine a straight line at the corresponding shaft holes (two points), and the third group of rod pieces can check the straightness of the inner frame/the outer frame; meanwhile, each group of rod pieces are parallelly positioned on the datum plane of the base station and erected at the same datum height, and can be used for checking the coaxiality of the inner frame shaft hole and the outer frame shaft hole.

In addition, the positioning base station is used as a reference surface, the positioning rod piece with the same reference height is used as a checking reference shaft to penetrate through the shaft hole, the blank surfaces of the inner frame and the outer frame do not need to be contacted, and the detection precision is improved. Only need during the detection with at least three group positioning rod piece pass respectively in inner tower shaft hole and outer tower shaft hole can, if the positioning rod piece wears to establish not smooth or be difficult to pass inner tower shaft hole and outer tower shaft hole simultaneously then indicate that the axiality in inner tower shaft hole and outer tower shaft hole is relatively poor, can carry out grinding and vibration damping to the shaft hole and repair, improve the axiality of inner tower and outer tower, guarantee to cut the stability that the fork ascended a height the car and move.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a working schematic diagram of a device for detecting coaxiality and size of an inner frame and an outer frame of a scissor ascending truck according to an embodiment of the utility model;

FIG. 2 is a schematic view of the positioning stage of FIG. 1;

FIG. 3 is a schematic view of the contour block of FIG. 1;

FIG. 4 is a schematic view of the positioning rod of FIG. 1;

fig. 5 is a schematic view of the bushing of fig. 1.

Wherein:

01-inner frame, 02-outer frame;

1-positioning base station, 2-equal-height block, 3-positioning rod piece, 4-lining, 41-positioning boss and 42-limiting base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, fig. 1 is a schematic diagram illustrating an operation principle of a device for detecting coaxiality and size of inner and outer frames of a scissors ascending truck according to an embodiment of the present invention, fig. 2 is a schematic diagram illustrating a positioning base in fig. 1, fig. 3 is a schematic diagram illustrating an equal-height block in fig. 1, fig. 4 is a schematic diagram illustrating a positioning rod in fig. 1, and fig. 5 is a schematic diagram illustrating a bushing in fig. 1.

The device for detecting the coaxiality and the size of the inner frame and the outer frame of the scissor ascending truck comprises a positioning base station 1 and at least three groups of positioning rod pieces 3, wherein all the positioning rod pieces 3 are parallel to the table top of the positioning base station 1 and are arranged at the same reference height, and all the positioning rod pieces 3 are arranged in parallel. The inner frame 01 and the outer frame 02 of the scissor ascending vehicle are welded in parallel, and shaft holes of the inner frame and the outer frame are oppositely arranged. Taking three groups of positioning rod members 3 as an example for explanation, two groups of positioning rod members 3 pass through two points at the axle hole of the inner frame to determine a straight line, the axle hole of the inner frame through which the third group of positioning rod members 3 pass is used for checking the straightness of the inner frame 01, and the same is true for checking the straightness of the outer frame 02. In addition, the positioning rod piece 3 is arranged at the same reference height above the table surface of the positioning base table 1, and the coaxiality of the inner frame shaft hole and the outer frame shaft hole is verified by penetrating the positioning rod piece 3 through the inner frame shaft hole and the outer frame shaft hole.

The positioning rod piece 3 is used as a reference shaft for checking the coaxiality, and the coaxiality detection can be completed only by penetrating a plurality of groups of rod pieces; compared with the method that the top surface or the bottom surface of the inner frame 01 and the bottom surface of the outer frame 02 are used as reference surfaces, the coordinates of the inner frame shaft hole and the outer frame shaft hole relative to the reference surfaces are detected respectively, and the coordinates are compared, the detection efficiency is improved remarkably, and the positioning rod piece 3 is used as a reference shaft, so that the positioning precision is higher. The problem that the reference surface is inconsistent due to burrs on the bottom surface or the surface of the inner frame 01 and the top surface or the bottom surface of the outer frame 02 does not exist, and the detection accuracy is improved.

The coaxiality and size detection device for the inner frame and the outer frame of the scissor climbing vehicle provided by the utility model is described in more detail with reference to the accompanying drawings and specific embodiments.

In the alternative embodiment provided by the utility model, the positioning base station 1 adopts a cuboid base station, supporting seats are arranged at four corners of the base station, and pulleys can be arranged at the bottoms of the supporting seats according to requirements. The upper table surface of the positioning base table 1 is used as a reference surface, and the flatness of the upper table surface is controlled within 2 filaments. It should be noted that the shape or the supporting structure of the positioning base 1 is not particularly limited in the present application, as long as the upper surface is a horizontal surface with good flatness.

In the present embodiment, the positioning rods 3 are arranged in three groups, and the positioning rods 3 may be piston rods. In order to support three groups of piston rods at the same height above the table top of the positioning base table 1, three groups of equal-height supports are arranged on the table top of the positioning base table 1, any group of equal-height supports comprises a pair of equal-height blocks 2 which are oppositely arranged at a preset interval, and two ends of a positioning rod piece 3 are respectively erected on the equal-height blocks 2 on two sides of one group of equal-height supports.

It should be noted that the preset distance should be greater than the width between the inner frame 01 and the outer frame 02 after welding, and smaller than the length of the positioning rod 3, so as to ensure that the positioning rod 3 can be erected between the pair of equal-height blocks 2 after penetrating through the inner frame shaft hole and the outer frame shaft hole, and the arrangement of the equal-height blocks 2 does not interfere with the bottom surfaces of the inner frame 01 and the outer frame 02.

The equal-height block 2 preferably adopts a metal block with an I-shaped section, and the equal-height block 2 is horizontally attached to the positioning base platform 1 at the bottom. Furthermore, mutually matched positioning screw holes can be formed in flange plates on two sides of the bottom edge of the equal-height block 2 and a table board of the positioning base table 1, and the equal-height block 2 can be fixed relative to the positioning base table 1. The height error caused when the equal-height block 2 is only placed on the positioning base platform 1 to turn over or welded on the positioning base platform 1 is avoided. The positioning screw holes arranged on the positioning base platform 1 can be strip-shaped holes or a plurality of groups along the connecting line direction of the pair of equal-height blocks 2, so that the distance between the pair of equal-height blocks 2 of the equal-height bracket can be conveniently increased.

In another alternative embodiment provided by the present invention, in order to ensure that the two ends of the plurality of sets of positioning rod members 3 are erected at the same reference height, not only the plurality of sets of equal-height brackets (equal-height blocks 2) installed on the top surface of the positioning base platform 1 as described in the above embodiment, but also two strip-shaped supporting blocks with the same height installed on the top surface of the positioning base platform 1 may be used. The two strip-shaped supporting blocks are arranged in parallel, and the distance between the two strip-shaped supporting blocks is larger than the width between the inner frame 01 and the outer frame 02 and is smaller than the length of the positioning rod piece 3.

In order to optimize the above embodiment, the reliability of the positioning rod 3 for the inner frame shaft hole and the outer frame shaft hole is improved. The device for detecting the coaxiality and the size of the inner frame and the outer frame of the scissor climbing vehicle further comprises a pair of bushings 4 sleeved on the positioning rod piece 3, the structure of the bushings 4 is shown in figure 5 and comprises a positioning boss 41 and a limiting base 42 which are integrally formed, and shaft holes for the positioning rod piece 3 to penetrate through are formed in the positioning boss 41 and the limiting base 42. After the positioning rod piece 3 passes through the inner frame shaft hole, the pair of bushings 4 are sleeved on the positioning rod piece 3 along the two ends of the inner frame 01 and the outer frame 02 respectively, the positioning bosses 41 of the pair of bushings 4 extend into the inner frame shaft hole and the outer frame shaft hole respectively, and the limiting base 42 is attached to the inner frame 01 and the outer frame 02 respectively. Through bush 4 and the cooperation of location member 3, location boss 41 and interior frame shaft hole and the cooperation of outrigger shaft hole, improve the positioning accuracy in interior frame shaft hole and outrigger shaft hole.

The device for detecting the coaxiality of the inner frame and the outer frame of the scissor climbing vehicle further comprises a size measuring assembly, and when the coaxiality of the shaft hole of the inner frame and the shaft hole of the outer frame is detected and found to have deviation through the positioning rod piece 3, the position information of the shaft hole of the inner frame and the shaft hole of the outer frame can be measured through the size measuring assembly, so that the shaft hole can be repaired conveniently. The size measuring assembly specifically comprises a height gauge, a vernier caliper, a conventional graduated scale and the like.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The device for detecting the coaxiality and the size of the inner frame and the outer frame of the scissor ascending truck provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a cut fork and ascend a height in car inside and outside frame axiality and size detection device which characterized in that, is including location base station (1) and parallel the mesa of location base station (1) just locates location base station (1) mesa top the same reference height of at least three group's location member (3), all location member (3) parallel arrangement each other.

2. The device for detecting the coaxiality and the size of the inner frame and the outer frame of the scissor climbing trolley according to claim 1, wherein at least three groups of equal-height supports are arranged on the table top of the positioning base table (1), each group of equal-height supports comprises two equal-height blocks (2) which are oppositely arranged, and two ends of the positioning rod piece (3) are respectively erected on the tops of the two equal-height blocks (2) of one group of equal-height supports.

3. The device for detecting the coaxiality and the size of the inner frame and the outer frame of the scissor climbing vehicle according to claim 2, wherein the longitudinal section of the equal-height block (2) is in an I shape.

4. The device for detecting the coaxiality and the size of the inner frame and the outer frame of the scissor climbing trolley according to claim 3, wherein the bottom of the equal-height block (2) is horizontally attached to the positioning base (1).

5. The inside and outside frame coaxiality and size detection device for the scissors ascending vehicle according to any one of claims 1 to 4, wherein a pair of bushings (4) are sleeved on the positioning rod member (3), and the bushings (4) are provided with positioning bosses (41) used for extending into an inside frame shaft hole or an outside frame shaft hole of the scissors ascending vehicle and limiting bases (42) integrally arranged with the positioning bosses (41).

6. The device for detecting coaxiality and size of the inner frame and the outer frame of the scissor climbing vehicle according to claim 5, further comprising a size measuring assembly for detecting the position of the shaft hole of the inner frame or the position of the shaft hole of the outer frame.

7. The scissors climbing vehicle inner and outer frame coaxiality and dimension detecting device according to claim 6, wherein the dimension measuring component comprises a height gauge and a vernier caliper.

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