Embedded quantitative grinding clamp for grinding CV probe

Abstract

The utility model discloses an inlay type quantitative grinding fixture for grinding a CV probe, which comprises an internal thread sleeve and an external thread base, the internal thread sleeve is in threaded connection with the external thread base, the external thread base is axially provided with a circular through hole for fixing a product, the adjusting size of the internal thread sleeve and the external thread base is 1mm after the internal thread sleeve and the external thread base are spirally rotated for a circle, and the adjusting size is 1mm. And the round through hole can accommodate a sample with the diameter of 2.7-3 cm. The utility model provides the embedded quantitative grinding clamp which is small in size and light in weight, and the accuracy and the stability of grinding precision are ensured. The grinding device is convenient to operate and suitable for manual operation of grinding the CV probe; the sub-damage problem caused by uneven polishing during wafer testing is reduced; the accuracy and the stability of the grinding precision are improved; the service life of the probe is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of accessories for a silicon carbide carrier concentration tester, and particularly relates to an inlaid quantitative grinding fixture for grinding a CV probe. Background Art

[0002] Common grinding fixtures are relatively large, heavy, have insufficiently fine scale adjustment, and are prone to moving during the working process, affecting the stability and accuracy of sample grinding. Summary of the Invention

[0003] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide an inlaid quantitative grinding fixture for grinding a CV probe.

[0004] The purpose of the utility model is achieved by the following technical solutions: an inlaid quantitative grinding fixture for grinding a CV probe, including an internal thread sleeve and an external thread base, the internal thread sleeve and the external thread base are screwed together, the axial direction of the external thread base is provided with a circular through hole for fixing the product, the adjustment dimension for one turn of spiral rotation of the internal thread sleeve and the external thread base is 1 mm, and the circular through hole can accommodate a sample with a diameter of 2.7 cm - 3 cm. The fixture is designed as an integral body, and the quantitative grinding accuracy of the fixture can be adjusted by up and down adjustment.

[0005] As an improvement of the inlaid quantitative grinding fixture for grinding a CV probe of the utility model, it further includes a sleeve positioning ring, the sleeve positioning ring is screwed on the external thread base, and the sleeve positioning ring is located below the internal thread sleeve.

[0006] As an improvement of the inlaid quantitative grinding fixture for grinding a CV probe of the utility model, it further includes a sleeve positioning screw, the sleeve positioning screw is arranged on the side of the internal thread sleeve, and after the internal thread sleeve and the external thread base are adjusted to the scale dimension, they are fixed with the sleeve positioning screw. After the scale is selected, it can be fixed for protection: the fixture is designed with a scale fixing protection device, which can be fixed after the scale adjustment is completed to prevent movement during work.

[0007] As an improvement of the inlaid quantitative grinding fixture for grinding a CV probe of the utility model, the axial surface of the external thread base is provided with scale values. The grinding size of the CV probe can be accurately controlled through the scale values.

[0008] As an improvement of the inlaid quantitative grinding fixture for grinding a CV probe of the utility model, when the external thread base rotates one turn clockwise, the grinding size of the CV probe increases by 1 mm, and when the external thread base rotates one turn counterclockwise, the grinding size of the CV probe decreases by 1 mm.

[0009] The beneficial effects of the present utility model are as follows: The present utility model provides a small and lightweight inlaid quantitative grinding fixture, ensuring the accuracy and stability of grinding accuracy. It is convenient to operate and suitable for manual operation of grinding CV probes; it reduces the problem of sub-damage during wafer testing caused by uneven grinding; it improves the accuracy and stability of grinding accuracy; it prolongs the service life of the probe. Brief Description of the Drawings

[0010] Figure 1 is a perspective view of the present utility model;

[0011] Figure 2 is the front view of the present utility model;

[0012] Figure 3 is Figure 2 the sectional view taken along A-A in

[0013] The reference numerals are: 1, internal thread sleeve; 2, external thread base; 3, circular through hole; 4, sleeve positioning ring; 5, sleeve positioning screw. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0015] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0016] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0017] Such as Figures 1 - 3As shown, an inlaid quantitative grinding fixture for grinding a CV probe includes an internal thread sleeve 1 and an external thread base 2. The internal thread sleeve 1 and the external thread base 2 are screwed together. An axial circular through-hole 3 for fixing the product is provided on the external thread base 2. The adjustment dimension for one turn of spiral rotation of the internal thread sleeve 1 and the external thread base 2 is 1 mm. The circular through-hole 3 can accommodate a sample with a diameter of 2.7 cm - 3 cm. The fixture is designed as an integral unit, and the quantitative grinding accuracy of the fixture can be adjusted by adjusting up and down.

[0018] Preferably, it further includes a sleeve positioning ring 4. The sleeve positioning ring 4 is screwed onto the external thread base 2 and is located below the internal thread sleeve 1. The sleeve positioning ring 4 can perform rough positioning on the internal thread sleeve 1.

[0019] Preferably, it further includes a sleeve positioning screw 5. The sleeve positioning screw 5 is arranged on the side of the internal thread sleeve 1. After the scale dimension of the internal thread sleeve 1 and the external thread base 2 is adjusted, it is fixed with the sleeve positioning screw 5. After the scale is selected, it can be fixed for protection: The fixture is designed with a scale fixing protection device, which can be fixed after the scale adjustment is completed to prevent displacement during work.

[0020] Preferably, scale values are provided on the axial surface of the external thread base 2. The grinding dimension of the CV probe can be accurately controlled through the scale values.

[0021] Preferably, when the external thread base 2 rotates clockwise by one turn, the grinding dimension of the CV probe increases by 1 mm. When the external thread base 2 rotates counterclockwise by one turn, the grinding dimension of the CV probe decreases by 1 mm.

[0022] During use, the CV probe to be ground is fixed on the circular through-hole 3 of the external thread base 2. The external thread base 2 is rotated to adjust the protruding dimension of the CV probe. After the dimension is adjusted, it is locked with the sleeve positioning screw 5 to prevent displacement of the internal thread sleeve 1. After positioning, the grinding operation can be carried out.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and structures of the present invention. The scope of the present invention is defined by the appended claims and their equivalent scope.

Claims

1. A mosaic quantitative grinding fixture for grinding a CV probe, characterized in that: It includes an internal threaded sleeve and an external threaded base, the internal threaded sleeve and the external threaded base are screwed together, the external threaded base is axially provided with a circular through hole for fixing the product, the adjustment size of the internal threaded sleeve and the external threaded base after one circle of spiral rotation is 1mm, and the circular through hole can accommodate samples with a diameter of 2.7cm-3cm.

2. The inlaid quantitative grinding fixture for grinding CV probe according to claim 1, characterized in that: It also includes a sleeve positioning ring, which is threaded on the external thread base and is located below the internal thread sleeve.

3. The inlaid quantitative grinding fixture for grinding CV probe according to claim 1, characterized in that: It also includes a sleeve positioning screw, which is arranged on the side of the internal thread sleeve. After the internal thread sleeve and the external thread base are adjusted to the scale size, they are fixed with the sleeve positioning screw.

4. The inlaid quantitative grinding fixture for grinding CV probe according to claim 1, characterized in that: The axial surface of the external thread base is provided with scale values.

5. The inlaid quantitative grinding fixture for grinding CV probe according to claim 1, characterized in that: The external thread base rotates one circle clockwise, and the grinding size of the CV probe increases by 1 mm. The external thread base rotates one circle counterclockwise, and the grinding size of the CV probe decreases by 1 mm.

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