CN211120919U

CN211120919U - Gear profile of tooth comprehensive testing rule

Info

Publication number: CN211120919U
Application number: CN201921990939.1U
Authority: CN
Inventors: 成钢; 楚浩; 杨阳
Original assignee: Jianglu Machinery and Electronics Group Co Ltd
Current assignee: Jianglu Machinery and Electronics Group Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-28
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a gear tooth profile comprehensive testing rule, detect rule and external tooth including the internal tooth and detect the rule, the internal tooth detects rule, external tooth and detects rule shape specification and wait to detect the external tooth respectively, wait to detect the shape specification of internal tooth the same, the internal tooth detects the rule and includes that Max internal tooth detects rule and Min internal tooth and detects the rule, the external tooth detects the rule and includes that Max external tooth detects rule and Min external tooth and detects the rule, Max internal tooth detects rule and Max external tooth and detects the rule's public normal line limit size and be M + a, Min internal tooth detects rule and Min external tooth and detects the public normal line limit size of rule and M-b, M is public normal line value, a is the deviation on the public normal line value, b is the deviation under the normal line public value. The gear tooth profile comprehensive detection gauge can replace a gear comprehensive detector to detect tooth profile errors and comprehensive accumulated errors, and is efficient and low in cost.

Description

Gear profile of tooth comprehensive testing rule

Technical Field

The utility model relates to a machine parts processing detects assists utensil technical field, indicates a gear profile of tooth comprehensive testing rule very much.

Background

In the existing gear manufacturing industry, the detection of the processes of hobbing and gear shaping is generally only to detect the common normal line, the tooth surface finish and the pitch circle run-out. For the manufacture of the high-precision carburized and hardened tooth surface gear, besides the grinding allowance is controlled by a common normal line, the uniformity of the grinding allowance is also influenced by tooth profile errors and comprehensive accumulated errors, and if the tooth profile errors and the comprehensive accumulated errors cannot be detected, the finish machining cannot be formed, and batch scrapping loss is caused. However, such errors can only be detected by a gear comprehensive detector, which is used for gears with accuracy of more than 6 levels, and if the gear comprehensive detector is used for detecting low-accuracy gears, equipment abrasion and great loss are caused. Therefore, an efficient and low-cost detection gauge is urgently needed to replace a gear comprehensive detector to reduce the enterprise cost.

Disclosure of Invention

The utility model aims at improving and innovating the shortcoming and the problem that exist among the background art, provide one kind and can replace the gear comprehensive testing appearance, and high-efficient cheap gear profile of tooth comprehensive testing rule.

The technical scheme of the utility model a construct a gear tooth profile comprehensive testing rule, detect rule and external tooth including the internal tooth and detect the rule, the internal tooth detects rule, external tooth and detects rule shape specification respectively with wait to detect the external tooth, wait to detect the shape specification of internal tooth the same, the internal tooth detects the rule and includes that the Max internal tooth detects rule and Min internal tooth and detects the rule, the external tooth detects the rule and includes that the external tooth detects rule and Min external tooth and detects the rule, the Max internal tooth detects the rule and Max external tooth and detects the rule's public normal line extreme dimension and be M + a, Min internal tooth detects rule and Min external tooth and detects the public normal line extreme dimension of rule and be M-b, M is public normal line value, a is the deviation on the public normal line value, b is the deviation under the public normal line.

Preferably, the manufacturing accuracy of the internal tooth detection gauge and the external tooth detection gauge is 2 grades higher than that of the external tooth to be detected and the internal tooth to be detected.

Preferably, the internal tooth detection gauge and the external tooth detection gauge are made of T10, T8, T12A, 9SiCr and CrWMn materials.

Preferably, a lifting cap is arranged at the surface center of the internal tooth detection gauge.

Preferably, the external tooth detection gauge is symmetrically provided with lifting lugs on two sides.

The utility model has the advantages and beneficial effect:

the gear tooth profile comprehensive detection gauge can replace a gear comprehensive detector to detect tooth profile errors and comprehensive accumulated errors, and is efficient and low in cost.

Drawings

Fig. 1 is a schematic structural view of the internal tooth detection gauge of the present invention.

Fig. 2 is an anatomical schematic view of the internal tooth detection gauge of the present invention.

Fig. 3 is a schematic structural diagram of the external tooth detection gauge of the present invention.

Fig. 4 is a schematic view of an external tooth detecting gauge according to the present invention.

Fig. 5 is a schematic view of the present invention during measurement.

Description of the figures:

1-internal tooth detection gauge, 2-external tooth detection gauge, 3-lifting cap, 4-lifting lug and 5-gear cycle error value.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, 2 and 3, a gear tooth profile comprehensive detection gauge comprises an internal tooth detection gauge 1 and an external tooth detection gauge 2, the shape specifications of the internal tooth detection gauge 1 and the external tooth detection gauge 2 are respectively the same as those of an external tooth to be detected and an internal tooth to be detected, the internal tooth detection gauge 1 comprises a Max internal tooth detection gauge and a Min internal tooth detection gauge, the external tooth detection gauge 2 comprises a Max external tooth detection gauge and a Min external tooth detection gauge, the limiting dimension of a common normal line of the Max internal tooth detection gauge and the Max external tooth detection gauge is M + a, the limiting dimension of a common normal line of the Min internal tooth detection gauge and the Min external tooth detection gauge is M-b, M is a common normal line value, a is an upper deviation of the common normal line value, and b is a lower deviation of the common normal line value.

The utility model discloses a working process and principle do:

when the gear comprehensive tooth profile detection gauge is used for detecting the gear circumferential error, the comprehensive tooth profile detection go-no go gauge is enabled to be attached to the tooth surface of the relief, when the first tooth is attached to the tooth surface of the product, the tooth surface of the last product and the tooth surface of the comprehensive tooth profile detection go-no go gauge have a tooth backlash difference, the backlash difference is the gear circumferential error value, a method for measuring by a feeler gauge can be adopted, when the gear circumferential error value is larger than 1/3 of the grinding amount, the quality problem can occur when the gear is ground after carburizing and quenching, and therefore the comprehensive tooth profile detection gauge can achieve the effect of detecting the gear. The internal tooth detection gauge 1 is used for detecting external teeth, the external tooth detection gauge 2 is used for detecting internal teeth, and the upper deviation of the common normal line value and the lower deviation of the common normal line value can be calculated by a calculation formula of the upper deviation and the lower deviation of the common normal line value, and are not explained in detail herein.

Example 2

On the basis of embodiment 1, as shown in fig. 1 and 2, the internal tooth detection gauge 1 and the external tooth detection gauge 2 are manufactured with higher accuracy than the external teeth to be detected and the internal teeth to be detected by 2 grades. The gear tooth profile comprehensive detection gauge with higher manufacturing precision is higher in detection precision, wherein the manufacturing precision is higher than that of the external teeth to be detected and the internal teeth to be detected by 2 grades, and the cost performance is higher.

Example 3

In addition to embodiment 1, as shown in fig. 1 and 2, the materials of the internal tooth detection gauge 1 and the external tooth detection gauge 2 are T10, T8, T12A, 9SiCr, CrWMn. Therefore, the hardness is higher, the wear resistance is higher, and the dimensional stability is better.

Example 4

In addition to embodiment 1, as shown in fig. 2 and 4, a lifting cap 3 is provided at the center of the surface of the internal tooth detection gauge 1, and lifting lugs 4 are symmetrically provided on both sides of the external tooth detection gauge 2. The use is more convenient due to the arrangement of the lifting cap 3 and the lifting lug 4.

Claims

1. The utility model provides a gear profile of tooth comprehensive testing rule, detects rule (2) including internal tooth detection rule (1) and external tooth, its characterized in that, internal tooth detection rule (1), external tooth detection rule (2) shape specification respectively with wait to detect the external tooth, wait to detect the shape specification of internal tooth the same, internal tooth detection rule (1) includes that Max internal tooth detects rule and Min internal tooth detection rule, external tooth detection rule (2) include that Max external tooth detects rule and Min external tooth and detects the rule, Max internal tooth detects rule and Max external tooth and detects the rule's public normal line limit size and be M + a, Min internal tooth detects rule and Min external tooth and detects the rule's public normal line limit size and be M-b, M is public normal line value, a is the deviation on the public normal line value, b is the deviation under the public normal line value.

2. The gear tooth profile comprehensive testing gauge of claim 1, characterized in that the internal tooth testing gauge (1) and the external tooth testing gauge (2) are manufactured with 2 grades higher precision than the external tooth to be tested and the internal tooth to be tested.

3. The gear tooth profile comprehensive detection gauge of claim 1, characterized in that the materials of the internal tooth detection gauge (1) and the external tooth detection gauge (2) are T10, T8, T12A, 9SiCr and CrWMn.

4. The gear tooth profile comprehensive detection gauge according to claim 1, characterized in that a lifting cap (3) is arranged at the surface center position of the internal tooth detection gauge (1).

5. The gear tooth profile comprehensive detection gauge according to claim 1, characterized in that the external tooth detection gauge (2) is symmetrically provided with lifting lugs (4) at both sides.