CN213714227U - Measuring needle frame of profile tolerance measuring instrument - Google Patents
Measuring needle frame of profile tolerance measuring instrument Download PDFInfo
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- CN213714227U CN213714227U CN202022512892.7U CN202022512892U CN213714227U CN 213714227 U CN213714227 U CN 213714227U CN 202022512892 U CN202022512892 U CN 202022512892U CN 213714227 U CN213714227 U CN 213714227U
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Abstract
The utility model relates to a volume appearance field, concretely relates to probe frame of profile tolerance measuring apparatu. The method comprises the following steps: the probe measuring device comprises a probe measuring frame base body, a connecting rod and a probe, wherein the connecting rod is Z-like, one end of the connecting rod is connected with the probe measuring frame base body, and the other end of the connecting rod is connected with the probe. The utility model discloses can realize the measurement to work pieces such as hidden fluting, trompil.
Description
Technical Field
The utility model relates to a volume appearance field, concretely relates to probe frame of profile tolerance measuring apparatu.
Background
With the continuous development of modern industrial technology, various complex parts continuously appear, and the requirements for measuring the surface profile of the part, particularly for measuring the surface profile in a large range and with high precision, are more and more urgent. Surface profile meters can be generally classified into two categories according to the measurement principle: contact pin type profile measuring instrument and non-contact pin type profile measuring instrument. The contact pin type contour measuring instrument has good measurement repeatability, large measurement range, stable and reliable measurement result and higher measurement precision, so the contact pin type contour measuring instrument is always used as the most basic and widely used surface contour detection method. However, when the stylus profilometer is performing profile measurement, the stylus cannot meet the detection condition for some workpieces due to structural limitations.
The probe contact type contourgraph is a measuring instrument for measuring parameters such as distance, angle, arc radius and the like of a two-dimensional shape on the surface of a workpiece by using a probe contact scanning method. For the workpiece which can not be directly measured by the contact of a measuring needle, such as a groove, an opening and the like, the given size of the pattern can not be measured due to the limited structure of the measuring needle frame of the profile measuring instrument. The phenomenon that the measuring needle scratches the measured surface of a workpiece easily occurs in the process of measuring the workpiece made of low-hardness materials by using the measuring needle contact type contourgraph.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: a probe frame of a profile tolerance measuring instrument is provided for measuring workpieces such as hidden grooves, holes and the like.
The technical scheme is as follows:
the utility model provides a survey needle holder of profile tolerance measuring apparatu, include: the probe measuring device comprises a probe measuring frame base body, a connecting rod and a probe, wherein the connecting rod is Z-like, one end of the connecting rod is connected with the probe measuring frame base body, and the other end of the connecting rod is connected with the probe.
Further, the connecting rod includes main measuring rod, switching pole, vice measuring rod, and wherein, switching pole one end and main measuring rod one end threaded connection, the switching pole other end and vice measuring rod one end threaded connection, main measuring rod and vice measuring rod, the main measuring rod other end and survey probe frame base member connection, the measuring needle is fixed at the vice measuring rod other end and vertical downwards.
Furthermore, the switching pole is perpendicular with main measuring staff and vice measuring staff.
Further, the needle point of the measuring needle is spherical.
Furthermore, the base body of the measuring needle frame is Z-shaped.
Furthermore, a force measuring adjusting weight is arranged on the main measuring rod.
Has the advantages that: the utility model discloses a class zigzag connecting rod can realize the measurement to work pieces such as hidden fluting, trompil.
Drawings
Fig. 1 is a schematic diagram of a probe holder of a profile measuring apparatus according to an embodiment of the present invention.
The device comprises a measuring needle frame base body 1, a main measuring rod 2, a switching rod 3, an auxiliary measuring rod 4, a measuring needle 5, a force measurement adjusting weight 6 and a nut 7.
Detailed Description
The probe contact type contourgraph is a measuring instrument for measuring parameters such as distance, angle, arc radius and the like of a two-dimensional shape on the surface of a workpiece by using a probe contact scanning method. For the workpiece which can not be directly measured by the contact of a measuring needle, such as a groove, an opening and the like, the given size of the pattern can not be measured due to the limited structure of the measuring needle frame of the profile measuring instrument. The phenomenon that the measuring needle scratches the measured surface of a workpiece easily occurs in the process of measuring the workpiece made of low-hardness materials by using the measuring needle contact type contourgraph. To prior art's defect, the utility model aims at providing a contact pin formula contourgraph survey needle frame realizes carrying out the purpose that the survey needle contact detected to work pieces such as fluting, trompil. And simultaneously, the measuring needle of the profile tolerance measuring instrument can reach the optimal contact condition.
The utility model provides a survey needle holder of profile tolerance measuring apparatu, include: the probe measuring device comprises a probe measuring frame base body, a connecting rod and a probe, wherein the connecting rod is Z-like, one end of the connecting rod is connected with the probe measuring frame base body, and the other end of the connecting rod is connected with the probe.
The utility model discloses a possible embodiment, the connecting rod includes main measuring rod, switching pole, vice measuring rod, wherein, switching pole one end and main measuring rod one end threaded connection, the switching pole other end and vice measuring rod one end threaded connection, main measuring rod and vice measuring rod, the main measuring rod other end and test probe frame body coupling, the test probe is fixed at the vice measuring rod other end and vertical downwards. The main measuring rod is provided with a force measuring adjusting weight.
Preferably, the adapter rod is perpendicular to the main measuring rod and the auxiliary measuring rod.
Preferably, the stylus is spherical at its tip.
Preferably, the stylus holder base is "Z" shaped.
The following detailed description is made with reference to the accompanying drawings.
As shown in fig. 1, a probe holder of a profile measuring apparatus comprises: survey needle frame base member 1, survey needle frame base member 1 be equipped with main measuring rod 2, main measuring rod 2 is equipped with switching pole 3, switching pole 3 passes through vice measuring rod 4 and connects the probe 5, main measuring rod 2 is equipped with dynamometry adjustment weight 6, assemble through nut 7 spiro union respectively between main measuring rod 2, switching pole 3, the vice measuring rod 4. The base body 1 of the measuring needle frame is Z-shaped, the main measuring rod 2, the adapter rod 3 and the auxiliary measuring rod 4 are assembled on a plane, the plane is parallel to the plane of a workbench of the profile tolerance measuring instrument, the main measuring rod 2, the adapter rod 3 and the auxiliary measuring rod 4 are assembled and then are Z-shaped, and the size of the force measurement is adjusted by moving a force measurement adjusting weight 6 on the main measuring rod.
In order to prevent the surface from being scratched, the end part of the measuring needle is provided with a ruby ball. The method for performing anti-injury measurement by using the probe contact type of the probe rack of the profile tolerance measuring instrument comprises the following steps: the measuring needle contacts a measured workpiece through the needle point ruby ball, and when the measuring needle generates displacement change, the sensing system or the grating system generates relative displacement, so that the measuring needle displacement is converted into an electric signal sent by the sensing system through the grating system; the electric signal extracts depth data through software, and the depth data is calculated through a formula to obtain the depth data of the actual workpiece to be measured.
The size length of switching pole can be adjusted and change, and the combination degree of freedom is high, can satisfy and measure all kinds of fluting, trompil etc. and can't directly contact measured work piece with the measuring pin. By preventing the ruby ball measuring needle from being damaged, the phenomenon that the surface of a workpiece is scratched by a measuring needle in the measuring process of a low-hardness material can be avoided. The utility model discloses can the free combination profile tolerance measuring apparatu survey needle frame, make the survey needle of profile tolerance measuring apparatu reach the best contact condition, its simple to use, efficient, with low costs, application scope are wide.
Claims (6)
1. A probe card holder of a profile tolerance measuring instrument is characterized by comprising: the probe measuring device comprises a probe measuring frame base body, a connecting rod and a probe, wherein the connecting rod is Z-like, one end of the connecting rod is connected with the probe measuring frame base body, and the other end of the connecting rod is connected with the probe.
2. The needle bar of claim 1, wherein the connecting rod comprises a main measuring rod, an adapter rod and a secondary measuring rod, wherein one end of the adapter rod is in threaded connection with one end of the main measuring rod, the other end of the adapter rod is in threaded connection with one end of the secondary measuring rod, the main measuring rod and the secondary measuring rod are connected with the other end of the main measuring rod and the base body of the needle bar, and the needle is fixed at the other end of the secondary measuring rod and faces vertically downwards.
3. A stylus holder according to claim 1, wherein the changeover bar is perpendicular to the primary and secondary bars.
4. A stylus holder according to claim 1, wherein the stylus is spherical at its tip.
5. The stylus holder of claim 1, wherein the stylus holder base is "zigzag" shaped.
6. The stylus holder according to claim 1, wherein the main measuring bar is provided with a force measuring adjusting weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022512892.7U CN213714227U (en) | 2020-11-03 | 2020-11-03 | Measuring needle frame of profile tolerance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022512892.7U CN213714227U (en) | 2020-11-03 | 2020-11-03 | Measuring needle frame of profile tolerance measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213714227U true CN213714227U (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022512892.7U Active CN213714227U (en) | 2020-11-03 | 2020-11-03 | Measuring needle frame of profile tolerance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213714227U (en) |
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2020
- 2020-11-03 CN CN202022512892.7U patent/CN213714227U/en active Active
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