CN220982170U

CN220982170U - Profile tolerance gauge

Info

Publication number: CN220982170U
Application number: CN202322578846.0U
Authority: CN
Inventors: 左佳立; 董阳
Original assignee: Gz Tooling Group Automobile Technology Co ltd
Current assignee: Gz Tooling Group Automobile Technology Co ltd
Priority date: 2023-09-22
Filing date: 2023-09-22
Publication date: 2024-05-17
Anticipated expiration: 2033-09-22

Abstract

The utility model discloses a profile tolerance gauge, which belongs to the technical field of inspection tools in the production auxiliary equipment technology and comprises a pin, wherein the pin consists of a handheld part, a connecting part and a guiding part, the cross section area of the handheld part is larger than that of the connecting part, and the cross section area of the connecting part is larger than that of the guiding part. The outside of connecting portion is equipped with the bush, is equipped with the screw hole in the lateral wall of bush, and the screw hole is equipped with the butterfly nut of mutually supporting, and the butterfly nut passes the screw hole and arranges in the recess on the connecting portion. And the shoulder-lifting bush is matched with the guide part. The clearance between the bushing and the hand-held portion end face is measured using a feeler gauge. The profile tolerance checking fixture is simple in structure, convenient to use, applicable to various profiles difficult to measure and extremely high in applicability.

Description

Profile tolerance gauge

Technical Field

The utility model belongs to the field of inspection tools in the production auxiliary equipment technology, and particularly relates to a profile tolerance inspection tool.

Background

With the continuous development of the automobile industry, automobile manufacturers continuously increase the requirements on the automobile quality, and in order to improve the production efficiency and control the product quality, whether all tolerances on the plate meet the design requirements is detected before the workpiece subjected to stamping enters the next working procedure or is delivered to users. The workpiece is subjected to a plurality of working procedures from raw materials to delivery, wherein the horizontal end face tolerance of the qualified workpiece meets the standard, otherwise, the workpiece is matched with the workpiece to generate gaps to generate defective products, and therefore the workpiece is required to be subjected to profile tolerance detection.

In the detection method in the prior art, a reference plane is required to be abutted against a measured plate, and then a specific value is determined by manually reading by using tools such as a feeler gauge and the like to judge whether the variation of a measured element relative to the reference in the direction is within a tolerance range or not. In practical applications, because the sheet metal parts of the automobile are irregular in shape, the sheet metal parts have a plurality of concave or convex overlapping surfaces, and the concave or convex overlapping surfaces are often positions where profile tolerances are more needed to be measured. And due to the limitation of shape or space, workers cannot provide a reference plane by using the original method and measure by using a feeler gauge.

There is a need in the art for a new solution to this problem.

Disclosure of utility model

The technical problems to be solved by the utility model are as follows: the utility model provides a profile tolerance gauge for solve among the prior art because the technical problem that reference plane and clearance gauge can't be used to survey profile tolerance of plate self space hindrance.

The technical scheme adopted by the utility model is to provide a profile tolerance gauge which comprises a pin, wherein the pin consists of a handheld part, a connecting part and a guiding part, the cross section area of the handheld part is larger than that of the connecting part, the cross section area of the connecting part is larger than that of the guiding part, and the connecting part is axially provided with a groove; the outside of the connecting part is provided with a bushing, the side wall of the bushing is internally provided with a threaded hole, the threaded hole is internally provided with a butterfly nut which is matched with each other, and the butterfly nut passes through the threaded hole and is arranged in the groove; the device comprises a workbench, a guide part and a plate, and is characterized by further comprising a shoulder bushing embedded in the workbench, wherein the guide part is matched with the shoulder bushing, and when the bushing abuts against the plate, a clearance between the upper end face of the bushing and the lower end face of the handheld part is measured by using a feeler gauge.

The top of the shoulder-lifting bush is flush with or lower than the table top of the workbench.

Through the design scheme, the utility model has the following beneficial effects: the clearance between the bushing and the end face of the hand-held part of the pin is measured by using the clearance gauge, and the clearance is compared with the reference value to determine whether the clearance of the profile of the plate is qualified or not. The profile tolerance gauge is simple and quick to use, reduces the working time and effectively improves the working efficiency; the device is suitable for the plate with the steric hindrance incapable of directly measuring the profile tolerance, converts the clearance incapable of being measured into the clearance capable of being measured randomly on the gauge, and has extremely strong applicability.

Drawings

FIG. 1 is a schematic diagram of an exploded structure of a profile tolerance test tool according to the present utility model;

FIG. 2 is a schematic diagram of a profile tolerance test tool according to the present utility model;

FIG. 3 is a schematic sectional view of a profile tolerance test tool according to the present utility model.

In the figure, 100-pins, 110-handholds, 120-connecting parts, 121-grooves, 130-guiding parts, 200-bushings, 300-wing nuts, 400-shoulder bushings, 500-plates and 600-tables are shown.

Detailed Description

The utility model is further described with reference to the drawings and detailed description which follow:

As shown in fig. 1-3, the profile tolerance testing tool of the present utility model includes a pin 100, wherein the pin 100 is composed of an upper portion, a middle portion and a lower portion, the upper portion is a hand-held portion 110, the middle portion is a connecting portion 120, and the lower portion is a guiding portion 130. Wherein the cross-sectional area of the hand-held portion 110 is larger than the cross-sectional area of the connection portion 120, and the cross-sectional area of the connection portion 120 is larger than the cross-sectional area of the guide portion 130. The connection portion 120 is provided with a groove 121 in the direction along the axis. The bushing 200 is provided on the outside of the connection portion 120, a threaded hole is provided in the sidewall of the bushing 200, and the wing nut 300 is placed in the groove 121 through the threaded hole, and the bushing 200 can move along the connection portion 120. The length of the connection portion 120 is greater than the sum of the length of the bush 200 and the thickness of the board to be measured. The bushing 200 may be locked by the wing nut 300 as it moves along the connection 120. The shoulder-lift bushing 400 is also embedded in the workbench 600, and the shoulder-lift bushing 400 is used as a reference plane for detection. The guide 130 mates with the shoulder-lift bushing 400. The guide 130 is inserted into the tub portion of the shoulder-up bushing 400 through the plate 500, and the step between the connection part 120 and the guide 130 abuts against the shoulder of the shoulder-up bushing 400. The length of the guide 130 is less than the height of the tub in the shoulder-lift bushing 400.

In use, the plate 500 is placed on the workbench 600, and the hole position of the plate 500 is used as a detection hole position, and the position corresponds to the shoulder bushing 400. The butterfly nut 300 is placed at the corresponding position of the threaded hole on the bushing 200, the bushing 200 is sleeved on the connecting part 120 of the pin 100, and the butterfly nut 300 is screwed in to enable the butterfly nut 300 to be placed in the groove 121, so that the butterfly nut 300 and the groove 121 are in a non-locking state. The hand-held portion 110 is held to insert the pin 100 into the shoulder-up bushing 400 so that the guide portion 130 is engaged with the shoulder-up bushing 400. At this time, the lower end of the bush 200 abuts against the plate 500, and the wing nut 300 is locked, so that the positional relationship between the bush 200 and the connecting portion 120 is locked. The clearance between the upper end surface of the bushing 200 and the lower end surface of the pin holding part 110 is measured by using the feeler gauge, and compared with a reference value (when the gauge is used for measuring a standard component, the feeler gauge can measure the theoretical clearance between the upper end surface of the bushing 200 and the lower end surface of the pin holding part 110), so that whether the profile tolerance of the plate is qualified can be known.

Claims

1. A profile tolerance gauge, characterized in that: the pin comprises a pin (100), wherein the pin (100) consists of a handheld part (110), a connecting part (120) and a guiding part (130), the cross section area of the handheld part (110) is larger than that of the connecting part (120), the cross section area of the connecting part (120) is larger than that of the guiding part (130), and the connecting part (120) is axially provided with a groove (121); the outside of the connecting part (120) is provided with a bushing (200), the side wall of the bushing (200) is internally provided with a threaded hole, the threaded hole is internally provided with a butterfly nut (300) which is matched with each other, and the butterfly nut (300) passes through the threaded hole and is arranged in the groove (121); the device further comprises a shoulder-lifting bush (400) embedded in the workbench (600), wherein the guide part (130) is matched with the shoulder-lifting bush (400), and when the bush (200) is propped against the plate (500), a clearance between the upper end surface of the bush (200) and the lower end surface of the handheld part (110) is measured by using a feeler gauge; the shoulder-lifting bush (400) is used as a reference plane for detection; the guide part (130) is inserted into the barrel part of the shoulder-up bushing (400) through the plate (500), and the step between the connecting part (120) and the guide part (130) is abutted against the shoulder of the shoulder-up bushing (400).

2. The profile tolerance test fixture of claim 1, wherein: the top of the shoulder-lifting bush (400) is flush with the table top of the workbench (600) or lower than the table top of the workbench (600).