CN210108207U - Groove width measuring tool - Google Patents
Groove width measuring tool Download PDFInfo
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- CN210108207U CN210108207U CN201921141710.0U CN201921141710U CN210108207U CN 210108207 U CN210108207 U CN 210108207U CN 201921141710 U CN201921141710 U CN 201921141710U CN 210108207 U CN210108207 U CN 210108207U
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- measuring tool
- groove width
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Abstract
A groove width measuring tool comprises a handle (1), a set screw (2), a plug sheet group (3), a roller pin (4) and a step bolt (5), wherein the plug sheet group (3) consists of a plurality of plug sheets with different thicknesses, the plug sheet group (3) is installed at one end of the handle (1) and fixed by the step bolt (5), and the plug sheet group (3) can rotate around a step section of the step bolt; the rolling needle (4) is installed at one end of the handle (1) through the set screw (2), and the rolling needle (4) and the plug piece group (3) are installed at the same end of the handle (1). The utility model discloses because its cock piece is hugged closely when measuring and is surveyed the inslot wall, and simultaneously kingpin is tangent with surveying groove opposite side inner wall and cock piece, consequently uses the data that this measuring tool recorded and groove to perpendicular, and the accessible improves the precision that kingpin diameter and cock piece thickness improve this measuring tool, can effectively solve the erroneous judgement problem to the measurand product that leads to because of the measuring tool problem.
Description
Technical Field
The utility model belongs to the technical field of measuring tool, in particular to instrument that both can measure straight flute groove width and can measure curved surface groove width.
Background
At present, a measuring tool commonly used for measuring the groove width in China is a vernier caliper, and the measuring tool has the defect that the measuring direction of the vernier caliper cannot be ensured to be completely vertical to the groove direction in the measuring process, for example, when a straight groove is measured, the measuring result is larger than the actual groove width; for curved grooves such as circular groove holes, the vernier caliper cannot measure the maximum diameter, so that the measurement result is smaller than the actual groove width, and the precision of the vernier caliper is low, so that the measurement tool cannot actually measure the groove width, and the misjudgment on whether the measured product is qualified or not can be caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a measuring tool for measuring groove width, this instrument simple structure, convenient operation, measurement accuracy is high, can effectively solve the erroneous judgement problem to the measurand product that leads to because of the measuring tool problem.
The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. According to the utility model provides a groove width measuring tool, including handle, holding screw, stopper piece group, kingpin, step bolt, this stopper piece group comprises the stopper piece of multiple different thickness, the stopper piece group is installed in handle one end and is fixed with the step bolt, and this stopper piece group can rotate around the step section of step bolt; the rolling needle is installed at one end of the handle through a set screw, and the rolling needle and the plug piece group are installed at the same end of the handle.
Further, the plug sheet is made of a heat-treated 65Mn spring steel strip with good elastic deformation capacity.
Furthermore, the thicknesses of the adjacent plug sheets in the plug sheet group are sequentially increased, and the thickness difference of every two adjacent plug sheets is 0.01 millimeter.
Borrow by above-mentioned technical scheme, the utility model discloses owing to its cock piece is hugged closely by the survey inslot wall when measuring, simultaneously kingpin and by survey groove opposite side inner wall and cock piece tangent, consequently use the certain and groove of data that this measuring tool recorded to perpendicular, and the accessible improves the precision that this measuring tool was improved to the precision of kingpin diameter and cock piece thickness, can effectively solve the erroneous judgement problem to the measurand product that leads to because of the measuring tool problem.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
In the figure: 1. the handle 2, the set screw 3, the plug group 4, the rolling pin 5, the step bolt.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 and 2, a groove width measuring tool of the present invention includes a handle 1, a set screw 2, a plug set 3, a needle roller 4, and a stepped bolt 5; the plug sheet group 3 is composed of a plurality of plug sheets with different thicknesses, and the plug sheet group 3 is installed at one end of the handle 1 and fixed by a step bolt 5. The step bolt is prior art, and it includes bolt head, step section and the screw rod section that integrated into one piece connects gradually, and wherein each chock plug in chock plug group 3 stacks and overlaps and establish on the stage and can rotate for this step section, and the bolt head realizes spacing to spacing chock plug group 3 after the step bolt borrows screw rod section and handle locking. Preferably, the thickness of the plug sheet group 3 increases in sequence, for example, the thinnest plug sheet has a thickness of 0.01 mm, and the thickness difference between every two adjacent plug sheets is 0.01 mm. The needle roller 4 is arranged at one end of the handle 1 and is arranged at the same end of the handle 1 as the plug sheet group 3, the needle roller 4 is fixed by the set screw 2 so as to be convenient for the detachable replacement of the needle roller, and the needle roller 4 can be replaced with different diameter specifications according to the measured groove width.
Preferably, the plunger is made of a heat-treated spring steel strip with good elastic deformation, such as 65Mn, to ensure that the plunger can be tightly attached to the needle roller during measurement and can be completely reset to the state shown in fig. 2 after the measurement is finished.
During measurement, the rolling needle 4 and one of the plug pieces in the plug piece group 2 are plugged into a groove to be measured at the same time, and the rest plug pieces rotate towards two sides to be far away from the groove to be measured for standby; the diameter of the roller pin 4 is selected to be relatively close after the groove width is preliminarily compared, namely the diameter of the roller pin is roughly slightly smaller than the groove width after the preliminary tentative comparison with the groove width, so that the number of the plug pieces plugged into the groove to be measured can be reduced to improve the measurement precision and reduce the measurement procedures. Because the plug piece can deform, one end of the plug piece, which is far away from the step bolt, is tightly attached to the surface of the roller pin after being simultaneously plugged into the groove; referring to fig. 2, the plug is bent downward and deformed to be attached to the upper surface of the needle roller.
And then replacing the plug pieces with different thicknesses according to the measurement condition until one of the two plug pieces with adjacent thicknesses can be plugged in and the other plug piece cannot be plugged in, wherein the diameters of the roller pins and the sum of the thicknesses of the two plug pieces are in the groove width range. Because during the measurement the chock block hugs closely by survey inslot wall, simultaneously kingpin 4 is tangent with by survey groove opposite side inner wall and this chock block, consequently uses the utility model discloses the groove width data that record must be to perpendicular with the groove, just the utility model discloses the accessible improves the precision of kingpin diameter and chock block thickness and improves its measurement accuracy, can effectively solve the erroneous judgement problem to the measurand product that is surveyed that leads to because of the measuring tool problem.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art can easily modify, change or modify the above embodiments according to the technical spirit of the present invention without departing from the scope of the present invention.
Claims (3)
1. A slot width measuring tool, comprising: the novel plug piece set comprises a handle (1), a set screw (2), a plug piece set (3), a roller pin (4) and a step bolt (5), wherein the plug piece set (3) consists of a plurality of plug pieces with different thicknesses, the plug piece set (3) is installed at one end of the handle (1) and is fixed by the step bolt (5), and the plug piece set (3) can rotate around a step section of the step bolt;
the rolling needle (4) is installed at one end of the handle (1) through the set screw (2), and the rolling needle (4) and the plug piece group (3) are installed at the same end of the handle (1).
2. A slot width measuring tool according to claim 1, wherein: the plug sheet is made of a heat-treated 65Mn spring steel strip with elastic deformation capacity.
3. A groove width measuring tool according to claim 1 or 2, wherein: the thickness of the adjacent plug sheets in the plug sheet group (3) is increased gradually in sequence, and the thickness difference of every two adjacent plug sheets is 0.01 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921141710.0U CN210108207U (en) | 2019-07-19 | 2019-07-19 | Groove width measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921141710.0U CN210108207U (en) | 2019-07-19 | 2019-07-19 | Groove width measuring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210108207U true CN210108207U (en) | 2020-02-21 |
Family
ID=69567047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921141710.0U Active CN210108207U (en) | 2019-07-19 | 2019-07-19 | Groove width measuring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210108207U (en) |
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2019
- 2019-07-19 CN CN201921141710.0U patent/CN210108207U/en active Active
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