CN213874031U - Clamp for indicator verification instrument - Google Patents

Abstract

The utility model belongs to the aviation measurement technique relates to a special fixture that is used for full-automatic examination appearance of indicateing meter. The indicator verification instrument clamp comprises a limiting block (1), a sliding rail (3), a locking bolt (4), a main body (5), a base (6), a trapezoidal pressing plate and a V-shaped pressing plate. Wherein, main part (5) are L shape, and two cylindricality slide rails (3) pass L shape main part setting on base (6), and locking bolt (4) set up in main part (5) side to correspond in slide rail (3), V type clamp plate sets up the one end top that does not set up the slide rail in L shape main part (5), trapezoidal clamp plate sets up in base (6) below to with the instrument track phase-match is examined and determine to the instruction table. The utility model discloses anchor clamps can satisfy the axle sleeve diameter scope at the clamping of (4-30) mm instruction table, can realize the examination/calibration of the instruction table of axle sleeve diameter special case, and the operation is comparatively simple moreover, can effectively guarantee the measuring accuracy, has great practical application and worth.

Description

Clamp for indicator verification instrument

Technical Field

The utility model belongs to the aviation measurement technique relates to a special fixture that is used for full-automatic examination appearance of indicateing meter.

Background

The full-automatic calibrator for the indicator can realize calibration of various gauges, such as a dial indicator, an inner diameter gauge, a lever gauge, a digital display gauge, an English system gauge and the like, has high precision and high speed, and is generally applied at present. The clamp is a universal clamp, and can meet the clamping requirement of universal meters. The calibration instrument is simple to operate, a user only needs to install the indicating meter, select parameters such as the type, the division value, the measuring range and the like of the meter on software, and click the 'start calibration' key, so that the calibration instrument can drive the indicating meter to perform calibration according to national regulations.

Generally, the full-automatic calibrator is provided with parts such as a dial indicator, a dial indicator universal fixture, an inside diameter indicator lever indicator fixture, a ribbed workbench and the like, and the parts can finish calibration/calibration of standard appearance meters. In general, for an indicator with a nominal value of the diameter of the shaft sleeve being not phi 8mm, a universal fixture (a dial indicator or a dial indicator universal fixture) of a full-automatic indicator verification instrument cannot complete clamping, so that the situation that the quantity value tracing is difficult occurs. At present, novel indicators are more and more common, and the calibration requirement is more and more. For example, a calibration standard in a numerical control machine tool is a digital display indicator with a shaft sleeve diameter of phi 20mm, and a universal fixture (a dial indicator and a dial indicator universal fixture) of a full-automatic calibration instrument using the indicator cannot complete calibration. Two full-automatic verification instruments for the indicator used for magnitude tracing of a company are SJ2000 type and SJ2018 type, the shaft sleeves of the indicator are clamped by the aid of phi 10mm slotted holes (the inner linings in the holes are copper sleeves with the thickness of 1 mm) to fix the indicator, and verification/calibration cannot be achieved on the indicator with unmatched shaft sleeve diameters.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a simple structure, convenient operation, height-adjustable can satisfy the dial gauge examination appearance anchor clamps of the clamping of not many nonstandard diameter dial gauges.

The technical scheme of the utility model: the utility model provides an indicating meter examination appearance anchor clamps, its includes stopper 1, slide rail 3, locking bolt 4, main part 5, base 6, trapezoidal clamp plate, V type clamp plate, wherein, main part 5 is L shape, and two cylindricality slide rails 3 pass L shape main part and set up on base 6, and locking bolt 4 sets up in 5 sides of main part to correspond in slide rail 3, V type clamp plate sets up the one end top that does not set up the slide rail in L shape main part 5, trapezoidal clamp plate sets up in 6 below of base to with indicating meter examination appearance track phase-match.

And a V-shaped groove is formed above the end part of the L-shaped main body for mounting the V-shaped pressing plate.

The front surface or the back surface of the V-shaped pressing plate can be arranged above the end part of the L-shaped main body through a locking bolt.

The slide rail 3 is two side by side, and the tip passes through the screw installation on stopper 1.

A trapezoidal groove matched with the trapezoidal pressing plate in shape is formed below the base.

And a positioning bolt 8 is arranged on the base.

The utility model has the advantages that: the utility model discloses the full-automatic instruction table that instruction table examination appearance anchor clamps are suitable for with multiple model examines and determine the appearance and uses, if: SJ2000 type and SJ2018 type full-automatic indicator verification instruments. The use method of the pressing block can be selected according to the diameter of the shaft sleeve, the height of the main body of the clamp can be adjusted along the sliding rail, and the height position of the V-shaped groove can be adjusted according to the actual size of the calibrated indicator, so that the concentricity of the axis of the measuring head of the calibrated indicator and the axis of the measuring head of the full-automatic calibrator of the indicator is ensured, and the calibration result is accurate and reliable. The clamping problem of a series of indicators that the diameter of the axle sleeve is calibrated by a full-automatic indicator verification instrument and is incapable of being clamped in a special size or a special appearance can be effectively solved, the clamping of the indicator with the diameter of the axle sleeve being 4-30 mm is met, the clamp is simple in appearance and convenient to operate, and the clamp is used in SA, Z9 and ZM models on trial, so that the clamping problem of a numerical control machine tool in the quantity traceability process is solved, and the clamp has a great practical application value.

Drawings

FIG. 1 is a schematic view of a special fixture of the utility model of a dial gauge tester,

FIG. 2 is another schematic view of the special fixture for dial gauges of the present invention,

wherein 1 is the stopper, 2 is the screw, 3 is the slide rail, 4 is the locking bolt, 5 is the main part, 6 is the base, 7 is trapezoidal clamp plate, 8 is the locking bolt, 9 is the locking bolt, 10 is V type clamp plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1:

referring to fig. 1, it is a first embodiment of the present invention. A special fixture for indicating gauge examination appearance includes that main part 1, screw 4, slide rail 1, locking bolt 5, base 1, trapezoidal clamp plate 1, V type clamp plate 1. The main body 5 is L-shaped, one ends of the two cylindrical sliding rails 3 are mounted on the limiting block 1 through screws, the other ends of the two cylindrical sliding rails pass through the L-shaped main body and are arranged on the base 6, and the locking bolts 4 are arranged on the side face of the main body 5 and correspond to the sliding rails 3 and are used for locking the positions of the main body 5 on the sliding rails after the height of the main body is adjusted. The L-shaped main body 5 is provided with a V-shaped groove above the end without the slide rail, the front side or the back side of the V-shaped pressing plate can be arranged on the V-shaped groove at the end part of the L-shaped main body through a locking bolt for installing a non-standard indicating meter shaft sleeve, and the indicating meters with different diameters can be suitable for adjusting the V-shaped groove.

The base below is provided with the appearance assorted dovetail groove in trapezoidal clamp plate, trapezoidal clamp plate sets up in 6 below of base to with the instrument track phase-match is examined and determine to the instruction list, thereby install on the instrument is examined and determine to the instruction list, be provided with positioning bolt 8 on the base for the relative position between installation fixed trapezoidal clamp plate and the instrument is examined and determine to the instruction list.

In this embodiment, for the indicator with the shaft sleeve diameter of phi 20mm, the clamp is placed on a base slideway of the indicator full-automatic calibrating instrument, the calibrated indicator is placed on the V-shaped groove, the 9 and 10 are matched with the two threaded holes on the main body, the V-shaped pressing plate is placed on the V-shaped groove as shown in fig. 1, the locking bolt 9 is fixed, and the locking bolt 8 is fixed after the clamp is adjusted to a proper position. And (4) enabling the measuring rod of the indicating gauge to be in a horizontal state, and carrying out verification/calibration according to the JJG 34-2008 indicating gauge verification procedure.

Example 2:

referring to fig. 2, it is a second embodiment of the present invention. The special fixture for the dial gauge calibration instrument also comprises 1 main body, 4 screws, 1 sliding rail, 5 locking bolts, 1 base, 1 trapezoidal pressing plate and 1V-shaped pressing plate. The structure is similar to that of the first embodiment except that the V-shaped pressing plate is installed on the reverse side to fit the indicating watch case sleeves of different diameters.

In this embodiment, for the indicator with the shaft sleeve diameter of phi 6mm, the clamp is placed on a base slideway of the indicator full-automatic calibrating instrument, the calibrated indicator is placed on the V-shaped groove, the two threaded holes 9 and 10 are matched with the two threaded holes on the main body, the V-shaped pressing plate is placed on the V-shaped groove according to the diagram of fig. 2, the locking bolt 9 is fixed, and the locking bolt 8 is fixed after the clamp is adjusted to a proper position. And (4) enabling the measuring rod of the indicating gauge to be in a horizontal state, and carrying out verification/calibration according to the JJG 34-2008 indicating gauge verification procedure.

To sum up, the utility model discloses full-automatic examination appearance anchor clamps of instruction list have V type groove and height-adjustable festival, can effectively guarantee by the axle center of school instruction list gauge head and the gauge head axle center of full-automatic instruction list on a straight line, satisfy the clamping of axle sleeve diameter range at the instruction list of (4-30) mm, can realize the examination/calibration of the instruction list of axle sleeve diameter special conditions, operate comparatively simply moreover, can effectively guarantee the measuring accuracy, have great practical application and worth.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention, and in addition, the detailed parts of the present invention are the conventional techniques.

Claims (6)

1. The utility model provides an instruction table examination appearance anchor clamps, its characterized in that includes stopper (1), slide rail (3), locking bolt (4), main part (5), base (6), trapezoidal clamp plate, V type clamp plate, wherein, main part (5) are L shape, and two cylindricality slide rails (3) pass L shape main part and set up on base (6), and locking bolt (4) set up in main part (5) side to correspond in slide rail (3), V type clamp plate sets up the one end top that does not set up the slide rail in L shape main part (5), trapezoidal clamp plate sets up in base (6) below to with instruction table examination appearance track phase-match.

2. The fixture for a dial gage tester as claimed in claim 1, wherein a V-shaped groove is provided above an end of the L-shaped body for mounting the V-shaped pressing plate.

3. The prover clamp of claim 1 wherein the V-shaped pressure plate is mountable over the end of the L-shaped body by a locking bolt on either the front or back side.

4. The fixture for the dial gauge verification instrument according to claim 1, wherein the slide rails (3) are arranged side by side, and the end parts of the slide rails are mounted on the limiting block (1) through screws.

5. The fixture for a dial gauge tester as claimed in claim 1, wherein a trapezoidal groove matching with the shape of the trapezoidal pressure plate is provided under the base.

6. The fixture of claim 1, wherein the base is provided with a positioning bolt 8.

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