CN204421820U - A kind of small-bore chamfering measurement mechanism - Google Patents

Abstract

The utility model discloses a small-aperture chamfering measuring device, which comprises a base, a column, a support arm, an upper mandrel, a measuring mandrel, a mandrel standard chamfering gauge, and a dial gauge. The upright column is vertically fixed on the base , Racks are installed on both sides of the column, the column is embedded in the workbench, and the workbench is meshed with the rack. One side of the meshing part of the workbench and the rack is equipped with a lifting handle, and the other side is provided with a locking handle. , the workpiece is placed on the workbench, and the support arm is installed on the column above the workbench perpendicular to the column. The upper mandrel is sleeved on the support arm, and the extension line of the upper mandrel is vertical to the workbench. The inner part of the upper mandrel is hollow and the upper end is sleeved. Connected with a dial indicator, the dial indicator is fixed by the locking screw on the bracket arm, the measuring mandrel is threadedly connected to the lower end of the upper mandrel, and the integrated measurement of the mandrel standard chamfering gauge in the measuring mandrel The push rod is in contact with the dial indicator, and the mandrel standard chamfering gauge is in the shape of a cone. The advantages are: easy operation and suitable for batch testing.

Description

A Small Aperture Chamfering Measuring Device

technical field

The utility model relates to a measuring tool, in particular to a small-aperture chamfering measuring device.

Background technique

Measuring tool is the abbreviation of physical measuring tool, which is an instrument with a fixed shape when used to reproduce or provide one or more known quantities of a given quantity. There are many kinds of measuring tools in the machining industry, such as: vernier calipers, inner diameter micrometers, supports, micrometers, etc. There are measuring tools for each thickness and diameter. However, the measurement of small-diameter chamfering of the workpiece is complicated and needs to find the base point It is very complicated to measure and calculate, and a lot of time is wasted in mass production of small-diameter parts chamfering, and the measurement accuracy is not high. Professional chamfering measuring instruments are expensive, and it is very wasteful to buy and use them.

Utility model content

In order to solve the above problems, the purpose of this utility model is to provide a small aperture chamfering measuring device with simple structure, convenient operation, suitable for batch detection, convenient production, low manufacturing cost and accurate measurement.

In order to achieve the above object, the technical scheme of the utility model:

A small-aperture chamfering measurement device, including a base, a column, a workbench, a support arm, an upper mandrel, a measuring mandrel, a mandrel standard chamfering gauge, and a dial indicator. The column is vertically fixed on the base, and the column Racks are installed on both sides, the column is embedded in the workbench, and the workbench is meshed with the rack. There is a lifting handle on one side of the meshing part of the workbench and the rack, and a locking handle on the other side. The workpiece is placed on the table, and the support arm is installed perpendicular to the column on the column above the workbench. The upper mandrel is sleeved on the support arm. The extension line of the upper mandrel is vertical to the workbench. The upper mandrel is hollow inside and the upper end is sleeved with a Dial indicator, the dial indicator is fixed by the locking screw on the bracket arm, the measuring mandrel is threadedly connected to the lower end of the upper mandrel, and the measuring push rod is integrally set on the mandrel standard chamfering gauge in the measuring mandrel It is in contact with the dial indicator, and the mandrel standard chamfering gauge is in the shape of a circular cone.

Preferably, the workbench can move up and down on the rack.

As a preference, the size and inclination of the round table of the mandrel standard chamfering gauge can be replaced according to measurement requirements.

Preferably, the side slope of the mandrel standard chamfering gauge is the same as the slope of the chamfering on the workpiece.

The advantages are: convenient operation, suitable for batch detection, convenient manufacture, low manufacturing cost and high measurement accuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the measurement structure of the mandrel standard chamfering gauge and the workpiece of the present invention.

Detailed ways

As shown in Figures 1 and 2, a small-aperture chamfering measuring device includes a base 1, a column 2, a workbench 4, a support arm 8, an upper mandrel 9, a measuring mandrel 10, a mandrel standard chamfering gauge 11, Dial indicator 12, the column 2 is vertically fixed on the base 1, racks 3 are installed on both sides of the column 2, the column 2 is embedded in the workbench 4, and the workbench 4 is meshed with the rack 3, and the working There is a lifting handle 6 on one side of the meshing part of the table 4 and the rack 3, and a locking handle 7 on the other side. The workpiece 5 is placed on the workbench 4, and the column 2 above the workbench 4 is installed perpendicular to the column 2. Support arm 8, upper mandrel 9 is sleeved on the support arm 8, the extension line of upper mandrel 9 is vertical to workbench 4, the interior of upper mandrel 9 is hollow and the upper end is sleeved with dial indicator 12, and dial indicator 12 passes through the support The locking screw 13 on the arm 8 is fixed, and the lower end of the upper mandrel 9 is threadedly connected with the measuring mandrel 10, and the measuring push rod and the percentage of the integral setting on the mandrel standard chamfering gauge 11 in the measuring mandrel 10 are fixed. Table 12 is in contact, and the mandrel standard chamfering gauge 11 is in the shape of a cone. The workbench 4 can move up and down on the rack 3 . The size and inclination of the round table of the mandrel standard chamfering gauge 11 can be replaced according to the measurement requirements. The side slope of the mandrel standard chamfering gauge 11 is the same as the slope of the chamfering on the workpiece 5 . The size and inclination of the round table of the mandrel standard chamfering gauge 11 of the utility model can be replaced according to the measurement requirements. When measuring the round hole chamfering of different batches, the mandrel standard chamfer can be replaced by unscrewing the measuring mandrel 10. Angle gauge 11, when measuring the chamfering, press down the end of the dial indicator 12 when installing, so that the pressing length should be 3 mm to 4 mm. When measuring the chamfering of the workpiece, manually turn the lifting handle 6 to move the workbench 4, and pass through after the movement is completed. Tighten the locking handle 7, touch the lower end of the mandrel standard chamfering gauge 11 to the surface of the workpiece 5, record the reading, then move the mandrel standard chamfering gauge 11 to the measuring hole, and move the workpiece 5 so that it is in close contact with the chamfering , write down the reading, the theoretical value of chamfering can be calculated by the original degree, the current reading, the distance from the lower surface of mandrel standard chamfering gauge 11 to the round hole and the corner of the chamfering, such as the lower surface of mandrel standard chamfering gauge 11 The diameter of the circle is the same as the diameter of the processed round hole, so the difference between the original degree and the current reading is the chamfering reading. After the chamfering is measured, according to the current reading, the round hole in the later mass production can be measured, just lift the core Put the stick standard chamfering gauge 1 into the round hole, and compare it with the current reading to find out whether the chamfering of the round hole is standard, which is very convenient and the detection efficiency is very high.

Claims (4)

1. a small-bore chamfering measurement mechanism, comprise base (1), column (2), worktable (4), support arm (8), upper plug (9), measure-axis (10), plug standard chamfer gage (11), dial gauge (12), it is characterized in that, described column (2) is vertically fixed on base (1), column (2) two sides are all provided with tooth bar (3), column (2) is embedded in worktable (4), and worktable (4) and tooth bar (3) are connected with a joggle, worktable (4) is provided with lifting handle (6) with the side, position of engaging of tooth bar (3), opposite side is provided with set lever (7), worktable (4) is placed with workpiece (5), the column (2) of worktable (4) top is provided with support arm (8) perpendicular to column (2), support arm (8) is socketed with plug (9), the extension line vertical table (4) of upper plug (9), upper plug (9) boring and upper end is socketed with dial gauge (12), dial gauge (12) is fixed by the lock-screw (13) on support arm (8), upper plug (9) lower end screw-type is connected with measure-axis (10), the measurement push rod that integral type in plug standard chamfer gage (11) in measure-axis (10) is arranged contacts with dial gauge (12), and plug standard chamfer gage (11) is in round table-like.

2. a kind of small-bore according to claim 1 chamfering measurement mechanism, is characterized in that, described worktable (4) can move up and down on tooth bar (3).

3. a kind of small-bore according to claim 1 chamfering measurement mechanism, is characterized in that, round platform size and the degree of tilt of described plug standard chamfer gage (11) can be changed according to measurement demand.

4. a kind of small-bore chamfering measurement mechanism according to claim 1 or 3, is characterized in that, the side grade of described plug standard chamfer gage (11) is identical with the gradient of the upper chamfering of workpiece (5).