CN201043887Y

CN201043887Y - Device for detecting straightness and roundness of rod bar

Info

Publication number: CN201043887Y
Application number: CNU2007200635999U
Authority: CN
Inventors: 李克西; 郭光富
Original assignee: Zhuzhou Cemented Carbide Group Co Ltd
Current assignee: Zhuzhou Cemented Carbide Group Co Ltd
Priority date: 2007-06-20
Filing date: 2007-06-20
Publication date: 2008-04-02
Anticipated expiration: 2017-06-20

Abstract

The utility model provides a mechanical device which can detect straightness and roundness of bar at the same time. The device comprises a micrometer gauge, a detecting platform, a gauge stand, a gauge bracket and two parts brackets. The micrometer gauge is fixed on the gauge stand by the gauge bracket; the detecting platform is provided with two sliding grooves which are parallel for sliding of the gauge stand and the parts brackets in the sliding grooves respectively; the gauge stand is provided with a sliding matching surface matching with the grooves; the parts brackets are provided with sliding matching surfaces matching with the grooves and V-shaped parts placing grooves. The utility model has simple structure, low manufacturing cost and convenient operation and is suitable to detecting of mass products. The utility model can improve the detection accuracy and efficiency greatly and reduce labor intensity of the worker. Simultaneously, the device is suitable to the detection of the surface straightness and roundness of other shaft parts.

Description

A kind of linearity of bar and circularity detection device

Technical field

The utility model relates to the linearity and the circularity mechanical detection means of geometric measurement technology, the especially bar of axial workpiece.

Background technology

Shape errors such as the linearity of detection axial workpiece, circularity, what adopt usually is the instrumentation with simple function.Adopt vernier caliper or outside micrometer pointwise to detect as the circularity of axial workpiece, linearity adopts edge of a knife chi or platform to see that the gap judges.As when detecting the elongated bar that diameter is little, length-diameter ratio is big, can only be bar to be placed on the dedicated platform surface roll, see that the gap between part axial and the platform judges, linearity needs the error that artificial experience is judged and existence is bigger like this, also can't detect concrete deviate, so that whether usually can not correctly judge the part straight-line degree qualified.And circularity and linearity can not detect simultaneously, brings great inconvenience for the detection of quality inspection personnel, when needs in enormous quantities one by one when spot check but not sampling, increased the workload of quality inspection personnel more greatly.Chinese patent 95238091.9 proposes a kind of portable shaped position degree detector, comprise activity V-type holder part, the measure portion that constitutes by travelling carriage, pit gauge, indicating gauge, spacing vernier etc., fixing V-type holder part, it can detect the geometric sense such as linearity, right alignment, length of mechanical component and member, adjust easier, but complex structure, parts are many, and cost is higher, and only adapt to detection short, finding.

The utility model content

The utility model provides a kind of mechanical hook-up that can detect bar part straight-line degree and circularity simultaneously at above-mentioned deficiency, and is simple in structure, cost of manufacture is low, and is easy and simple to handle, is fit to typical products in mass production and detects, can improve accuracy of detection and efficient greatly, reduce labor strength.

Bar linearity of the present utility model and circularity detection device comprise clock gauge, detection platform, it is characterized in that: it also comprises gauge stand, table support and two part supports; Described clock gauge is fixed on gauge stand by the table support; Design has two sliding trays parallel, that supply gauge stand and part rack to slide therein respectively on the described detection platform surface; Described gauge stand has the face that is slidingly matched that is complementary with sliding tray, and described part support has the face that is slidingly matched that is complementary with sliding tray and the V-type part standing groove relative with the face of being slidingly matched.

Described sliding tray is V-type groove, T type groove or dovetail groove.

When detecting the circularity of bar, bar is placed on the V-type part standing groove, the adjustment form support makes the clock gauge gauge head contact with the bar surface, and rotational parts can record the circularity of this position gently then, directly reads numerical value from clock gauge; Survey the axially circularity of each position, only need to get final product along the even mobile gauge stand of sliding tray to desired location.When measuring linearity, after the adjustment form support makes the clock gauge gauge head and the bar surface contacts, just can record exact value easily along the even mobile gauge stand of sliding tray.When surveying the circularity of bar linearity and axial each position, also can realize by mobile part support.The utility model structure is very simple, and parts are few, the making precision of only need to guarantee to be slidingly matched face and part supporting surface, and processing cost is low, and easy and simple to handle, is fit to typical products in mass production and detects, and can improve accuracy of detection and efficient greatly, reduces labor strength.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the right view of Fig. 1;

Fig. 3 be among Fig. 1 detection platform 5 dissect (part) structural representation;

Fig. 4 is the part support 4 structure enlarged diagrams among Fig. 1;

Fig. 5 is the structure enlarged diagram of gauge stand 3 among Fig. 1.

Embodiment

As shown in Figure 1 and Figure 2, bar linearity of the present utility model and circularity detection device comprise clock gauge 1, detection platform 5, and gauge stand 3, table support 2 and two part supports 4.Clock gauge 1 is fixed on gauge stand 3 by table support 2.As shown in Figure 1 to Figure 3, design is gone up on detection platform 5 surfaces two sliding

trays

51 and 52 parallel, that supply gauge stand 3 and part rack 4 to slide therein respectively, and sliding

tray

51 and 52 is the V-type groove, also can be T type groove or dovetail groove.Gauge stand 3 designs have the face that is slidingly matched 31 that is complementary with sliding tray 51, see Fig. 5; 4 designs of part support and the face that is slidingly matched 42 that sliding tray 52 is complementary have the V-type part standing groove 41 of placing bar in the face of being slidingly matched 42 relative one side designs, see Fig. 4 for details.

Bar with detection Ф 4, length 350 is an example.Adjust the spacing of two part supports 4 earlier, the bar two ends are placed on respectively on the V-type part standing groove 41 of two part supports 4; Adjustment form support 2 contacts clock gauge 1 gauge head and bar surface then, rotates bar gently and can directly read the circularity numerical value of this position from the clock gauge 1.When surveying the circularity of axial each position or bar linearity, only need along sliding tray 51 even mobile gauge stands 3 to the circularity numerical value that can directly read this position or bar linearity.The utility model structure is very simple, parts are few, have only 3 parts such as gauge stand, part support, platform to need processing, the making precision of face and part supporting surface can reach the higher detection precision as long as assurance is slidingly matched, cost is low, and easy and simple to handle, is fit to typical products in mass production and detects, can improve detection efficiency greatly, reduce labor strength.

Linearity and circularity that the utility model not only satisfies bar detect, and linearity and circularity that its principle adapts to other axial workpiece surfaces equally detect.

Claims

1. the linearity of a bar and circularity detection device comprise clock gauge (1), detection platform (5), it is characterized in that: it also comprises gauge stand (3), table support (2) and two part supports (4); Described clock gauge (1) is fixed on gauge stand (3) by table support (2); Design has two sliding trays (51,52) parallel, that supply gauge stand (3) and part support (4) to slide therein respectively on described detection platform (5) surface; Described gauge stand (3) has the face that is slidingly matched (31) that is complementary with sliding tray (51), and described part support (4) has the face that is slidingly matched (42) that is complementary with sliding tray (52) and the V-type part standing groove (41) relative with the face of being slidingly matched (42).

2. the linearity of bar as claimed in claim 1 and circularity detection device, it is characterized in that: described sliding tray (51,52) is V-type groove, T type groove or dovetail groove.