CN201754080U - Concentricity detector - Google Patents

Abstract

The utility model relates to a concentricity detection device comprising a dial indicator and a mandrel, wherein the dial indicator is fixed by a clamping device, and the clamping device includes a horizontal bar, a vertical bar, a slider and a chute, wherein, One end of the cross bar is connected with the measuring rod of the dial indicator through a locking mechanism, the vertical bar is movably connected with the cross bar, the slider and the chute are placed correspondingly, and the lower end of the vertical bar is connected to the slider; the mandrel is a round tube and It is fixed between the support and the support through locking screw rods, and the support and the support are fixed on the bottom plate. The utility model has the advantages of simple structure, convenient use, low production cost, low requirements on the working environment and quick and accurate product measurement in mass production.

Description

A concentricity detection device

technical field

The utility model relates to a concentricity detection device.

Background technique

When machining pipe fittings such as powder metallurgy sleeves, etc., the concentricity detection generally uses a high-precision special concentricity detector. This type of detector can accurately detect the concentricity of the processed metal casing with high precision, but the detector is cumbersome to operate, the instrument itself is expensive, and has high requirements for the working environment, which is not convenient for fast and accurate mass production to measure product specifications.

Contents of the invention

In order to solve the problems in the above-mentioned technologies, the utility model proposes a concentricity detection device that is easy to operate, low in production cost, and capable of quickly and accurately measuring products in large-scale production.

The concentricity detection device of the present utility model comprises a dial gauge and a core rod, and the dial gauge is fixed by a clamping device, and the clamping device includes a horizontal bar, a vertical rod, a slider and a chute, wherein the horizontal One end of the rod is connected with the measuring rod of the dial indicator through a locking mechanism, the vertical rod is movably connected with the horizontal rod, the slider and the chute are placed correspondingly, and the lower end of the vertical rod is connected to the slider; the mandrel is a round tube and passes through The locking screw is fixed between the support and the bracket, and the bracket and the support are fixed on the bottom plate. The axis line of the mandrel is in the same plane as the axis line of the measuring head of the dial indicator; the outer diameter of the mandrel is smaller than the inner diameter of the product to be tested, and the difference between the two is not more than 0.1 mm; the support For angle iron.

The utility model has the advantages of simple structure, convenient use, low production cost, low requirements on the working environment and quick and accurate product measurement in mass production.

Description of drawings

Accompanying drawing is the structural representation of the utility model.

In the figure, 1. bracket; 2. dial indicator; 3. locking screw; 4. cross bar; 5. vertical bar; 6. slider; 7. chute; 8. mandrel; , Base plate.

Detailed ways

Example 1

Below in conjunction with accompanying drawing, the utility model is described.

As shown in the figure, the concentricity detection device of the present utility model includes a dial indicator 2 and a mandrel 8, and the dial indicator 2 is fixed by a clamping device, and the clamping device includes a cross bar 4, a vertical bar 5, a slide block 6 and the chute 7, wherein one end of the cross bar 4 is connected with the measuring rod of the dial indicator 2 through a locking mechanism, the vertical bar 5 is movably connected with the cross bar 4, the slide block 6 is placed correspondingly to the chute 7, and the vertical bar 5 The lower end of the lower end is connected to the slider 6; the mandrel 8 is in the shape of a tube and is fixed between the support 9 and the support 1 through the locking screw 3, and the support 1 and the support 9 are fixed on the bottom plate 10. Wherein the axis line of the mandrel 8 is in the same plane as the axis line of the measuring head of the dial indicator 2, and the outer diameter of the mandrel is smaller than the inner diameter of the product to be tested, the difference between the two is not more than 0.1 mm, and the support 9 is angle iron.

The utility model is used to measure the concentricity of a hollow casing such as a powder metallurgy sleeve. When in use, first select a mandrel 8 matching the inner diameter of the casing to be measured, and then use the locking screw 3 to fix the mandrel 8 Between the angle iron and the bracket 1, insert the casing to be tested into one end of the mandrel 8, and place the dial gauge above the bushing so that the axis line of the mandrel 8 is aligned with the measuring head of the dial gauge 2. The axis line is in the same plane, adjust the crossbar 4 so that the measuring head of the dial gauge 2 just touches the surface of the casing under test, manually rotate or push and pull the pipe under test, during this action, observe the pointer of the dial gauge 2 For the swing situation, if the pointer swing range exceeds the allowable maximum value, it means that the concentricity of the tube under test does not meet the requirements; if the pointer swing range is less than the allowable maximum value, it means that the concentricity of the tube under test meets the specification requirements.

Claims (4)

1. concentricity pick-up unit, it is characterized in that: comprise dial gauge (2) and plug (8), described dial gauge (2) is fixed by a clamping device, described clamping device comprises cross bar (4), montant (5), slide block (6) and chute (7), wherein, an end of cross bar (4) is connected by the sounding rod of locking mechanism with dial gauge (2), and montant (5) flexibly connects with cross bar (4), slide block (6) and the corresponding placement of chute (7), the lower end of montant (5) is connected to slide block (6); Described plug (8) also is fixed between stilt (9) and the support (1) by tie down screw (3) for the pipe shape, and described support (1) and stilt (9) are fixed on the base plate (10).

2. concentricity pick-up unit according to claim 1 is characterized in that: the axial line of the measuring head of the axial line of described plug (8) and dial gauge (2) is in same plane.

3. concentricity pick-up unit according to claim 2 is characterized in that: the external diameter of described plug (8) is less than the internal diameter of test product, and both differ and are no more than 0.1mm.

4. concentricity pick-up unit according to claim 1 is characterized in that: above support (9) is an angle bar.

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