Tooth part excircle detection device for odd-number helical gear shaft part

Abstract

The utility model relates to the technical field of detection, in particular to a tooth part excircle detection device for odd helical gear shaft parts, which comprises a detection platform and a verification gauge block, a base upright post is arranged on the detection platform, a rotating arm is mounted on the base upright post, and a measuring meter is mounted at the extending end of the rotating arm. Compared with the prior art, the detection tool is scientific and practical in structure, the detection platform, the base stand column, the rotating arm, the measuring instrument, the standard gauge block and the like are used in cooperation, the detection effect that the detection tool is manufactured to replace three coordinates to detect the outer circle of the tooth portion of the odd-number helical gear shaft type part is achieved, the labor intensity is reduced, and the detection work efficiency is improved; the comprehensive error during detection is reduced, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a tooth outer circle detection device for odd-numbered helical gear shaft parts. Background Art

[0002] Inspection fixtures are a type of device used to detect whether parts are qualified. After the processing of gear shaft parts is completed, it is necessary to detect whether the outer diameter of the parts is qualified. At present, for gear shaft parts with even numbers of teeth, calipers, micrometers and other inspection instruments can be used for manual inspection, but for gear shaft parts with odd numbers of teeth, when using an outside diameter micrometer to detect the outside diameter of the tooth top diameter, because the odd number of teeth is an asymmetric structure, there is no solid outer circle at 180 degrees on the same section, so the outside diameter micrometer cannot be measured, so only a three-coordinate machine can be used to directly detect the outside diameter size. Because not every production site is equipped with a very expensive three-coordinate measuring machine, off-site inspection of parts will result in long measurement time and high cost, affecting production progress, etc.

[0003] Therefore, there is a need for a tooth outer circle detection device for odd-numbered helical gear shaft parts that has a simple structural design, accurate and reliable detection accuracy, and high on-site detection efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the above technical defects, the utility model provides a tooth outer circle detection device for odd-numbered helical gear shaft parts.

[0005] The technical solution adopted by the utility model is as follows: a device for detecting the outer diameter of the tooth part of odd-numbered helical gear shaft parts, the key is: comprising a detection platform and a calibration block, the detection platform is provided with a base column, the base column is installed with a rotating arm, and the extended end of the rotating arm is installed with a measuring meter. In this solution, the gear shaft parts are placed horizontally on the detection platform to determine whether the outer diameter of the parts is qualified.

[0006] Furthermore, the rotating arm includes a first horizontal arm and a second horizontal arm, the first horizontal arm is connected to the base column through a rotating member, the extended end of the first horizontal arm is connected to the second horizontal arm through a rotating member, and the extended end of the second horizontal arm is installed with the measuring table. In this solution, by adjusting the rotation angle of the first horizontal arm and the second horizontal arm, the measuring table can be adapted to the measurement of gear shaft parts with various outer diameter sizes.

[0007] Furthermore, the rotating member includes a base and a rotating seat, the middle of the base and the rotating seat are provided with a shaft mounting hole for mounting a central rotating shaft, the base and the rotating seat are fixed by the central rotating shaft, and rotate around the central rotating shaft, the rotating seat is provided with a mounting hole for mounting the first horizontal arm, and the base is connected to the base column or the second horizontal arm through a locking assembly. In this solution, when the base is fixed to the base column or the second horizontal arm, the rotating seat can be rotated in a vertical plane as needed.

[0008] Furthermore, the shaft mounting hole of the rotating seat is provided with internal teeth, the outer peripheral surface of the central rotating shaft is provided with a smooth surface and a toothed portion, the smooth surface of the central rotating shaft is inserted into the base and fixedly connected to the central rotating shaft, the toothed portion of the central rotating shaft is inserted into the rotating seat, and the toothed portion is meshed with the internal teeth of the rotating seat. In this solution, since the toothed portion of the central rotating shaft is meshed with the internal teeth in the rotating seat shaft mounting hole, the rotation is more stable, and it is convenient for the user to adjust the angular position of the rotating seat according to the use requirements.

[0009] Furthermore, the locking assembly includes an internal threaded tube, the tube mouth of the internal threaded tube is directly connected to a positioning rod, the two positioning rods are movably sleeved with a same slider, the other end of the positioning rod is fixedly connected to the base, and the internal threaded tube is threadedly connected to a handwheel. In this solution, when the base column / second horizontal arm is placed between the two positioning rods, by manually rotating the handwheel, the threaded rod of the handwheel passes through the internal threaded tube and abuts against the slider, which can drive the slider to approach the base along the positioning rod, thereby fixing the base on the base column / second horizontal arm.

[0010] Furthermore, the measuring gauge is a micrometer. In this solution, the outer diameter of the gear shaft part is quickly measured by bringing the calibrated micrometer into contact with the surface of the gear shaft part.

[0011] Beneficial effects: The device for detecting the outer circle of the tooth part of odd-numbered helical gear shaft parts provided by the utility model has a reasonable structure. Through the coordinated use of the detection platform, the rotating arm, the measuring table and the calibration block, and the principle of cylindrical plane envelope, the detection effect of the outer circle of the outer tooth part of the odd-numbered helical gear shaft parts can be achieved by making a checking fixture instead of three-coordinate detection, which reduces the labor intensity of manpower, improves the work efficiency of detection, reduces the comprehensive error during detection, saves production cost, and has high scientific and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a rotating part;

[0014] Figure 3 Another use state diagram of the rotating part;

[0015] Figure 4 for Figure 2 Schematic diagram of the decomposition of

[0016] Figure 5 It is a schematic diagram of the structure of the locking assembly. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model. It should be noted that all directional indications in the embodiments of the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the descriptions of "first", "second", etc. in the utility model are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0018] See also Figure 1 In one embodiment of the utility model, a tooth outer circle detection device for odd-numbered helical gear shaft parts is provided, comprising a detection platform 1 and a calibration block 7. The detection platform 1 is provided with a base column 2, a rotating arm 3 is mounted on the base column 2, and a measuring gauge 4 is mounted on the extended end of the rotating arm 3. The user first calibrates the measuring gauge with the calibration block, then places the gear shaft parts horizontally on the detection platform, and contacts the calibrated measuring gauge with the surface of the gear shaft parts, thereby determining whether the outer diameter of the parts is qualified.

[0019] In a specific embodiment, Figure 1As shown, the rotating arm 3 includes a first horizontal arm 31 and a second horizontal arm 32, the first horizontal arm 31 is connected to the base column 2 through a rotating member 33, the protruding end of the first horizontal arm 31 is connected to the second horizontal arm 32 through a rotating member 33, and the protruding end of the second horizontal arm 32 is installed with the measuring table 4; by adjusting the rotating angles of the first horizontal arm and the second horizontal arm, the measuring table can adapt to the measurement of gear shaft parts with various outer diameter sizes.

[0020] In a specific embodiment, Figure 2-3 As shown, the rotating member 33 includes a base 331 and a rotating seat 332. The middle parts of the base 331 and the rotating seat 332 are provided with a shaft mounting hole for installing the central rotating shaft 333. The base 331 and the rotating seat 332 are fixed by the central rotating shaft 333 and rotate around the central rotating shaft 333. The rotating seat 332 is provided with a mounting hole 5 for installing the first horizontal arm 31. The base 331 is connected to the base column 2 or the second horizontal arm 32 through a locking assembly 6; when the base is fixed on the base column or the second horizontal arm, the rotating seat can be rotated in a vertical plane as needed.

[0021] In a specific embodiment, Figure 4 As shown, the shaft mounting hole of the rotating seat 332 is provided with internal teeth, the outer peripheral surface of the central rotating shaft 333 is provided with a smooth surface and a toothed portion, the smooth surface of the central rotating shaft 333 is inserted into the base 331 and fixedly connected with the central rotating shaft 333, the toothed portion of the central rotating shaft 333 is inserted into the rotating seat 332, and the toothed portion is meshed with the internal teeth of the rotating seat 332. In this solution, since the toothed portion of the central rotating shaft is meshed with the internal teeth in the rotating seat shaft mounting hole, the rotation is more stable, and it is convenient for the user to adjust the angular position of the rotating seat according to the use requirements.

[0022] In a specific embodiment, Figure 3-4 As shown, the locking assembly 6 includes an internal threaded tube 64, the pipe mouth of the internal threaded tube 64 is directly connected to a positioning rod 61, the two positioning rods 61 are movably sleeved with the same slider 62, the other end of the positioning rod 61 is fixedly connected to the base 331, and the internal threaded tube 64 is threadedly connected to a handwheel 63; when the base column / second horizontal arm is placed between the two positioning rods, the handwheel can be manually rotated to drive the slider along the positioning rod to approach the base, thereby fixing the base on the base column / second horizontal arm.

[0023] In a specific embodiment, the measuring gauge 4 is a micrometer. In this solution, the outer diameter of a gear shaft part is quickly measured by bringing the calibrated micrometer into contact with the surface of the gear shaft part.

[0024] The present invention is further described below in conjunction with a specific application scenario:

[0025] The tooth outer circle detection device for odd-numbered helical gear shaft parts comprises a detection platform 1 and a calibration block (not shown in the figure), the detection platform 1 is provided with a base column 2, the base column 2 is mounted with a rotating arm 3, and the protruding end of the rotating arm 3 is mounted with a micrometer; the rotating arm 3 comprises a first horizontal arm 31 and a second horizontal arm 32, the first horizontal arm 31 is connected to the base column 2 through a rotating member 33, the protruding end of the first horizontal arm 31 is connected to the second horizontal arm 32 through a rotating member 33, the shaft mounting hole of the rotating seat 332 is provided with an inner tooth pattern, the outer peripheral surface of the central rotating shaft 333 is provided with a smooth surface portion 333a and a tooth pattern portion 333b, the smooth surface portion of the central rotating shaft 333 is inserted into the base 331 and fixedly connected to the central rotating shaft 333, the tooth pattern portion of the central rotating shaft 333 is inserted into the rotating seat 332, and the tooth pattern portion is connected to the inner surface of the rotating seat 332 The tooth pattern is meshed, and the protruding end of the second horizontal arm 32 is installed with the measuring table 4; the rotating member 33 includes a base 331 and a rotating seat 332, and the middle parts of the base 331 and the rotating seat 332 are provided with a shaft mounting hole for installing the central rotating shaft 333, the base 331 and the rotating seat 332 are fixed by the central rotating shaft 333, and rotate around the central rotating shaft 333, and a mounting hole 5 is opened on the rotating seat 332 for installing the first horizontal arm 31, and the base 331 is connected to the base column 2 or the second horizontal arm 32 through a locking assembly 6; the locking assembly 6 includes an internal threaded tube 64, and the pipe mouth of the internal threaded tube 64 is directly connected to the positioning rod 61, and the same slider 62 is movably sleeved on the two positioning rods 61, and the other end of the positioning rod 61 is fixedly connected to the base 331, and the internal threaded tube 64 is threadedly connected to the handwheel 63.

[0026] When inspecting an odd-numbered spiral gear shaft part a, the user will first calibrate the micrometer using the calibration block 7 by adjusting the angles of the first horizontal arm and the second horizontal arm, and then place the gear shaft part a to be tested horizontally on the inspection platform, and bring the calibrated micrometer into contact with the surface of the gear shaft part to quickly measure its outer diameter.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention. Such changes all fall within the protection scope of the present invention.

Claims

1. A device for detecting the outer circle of the tooth of odd-numbered helical gear shaft parts, characterized in that: The invention comprises a detection platform (1) and a calibration block (7); the detection platform (1) is provided with a base column (2); a rotating arm (3) is installed on the base column (2); and a measuring meter (4) is installed at the protruding end of the rotating arm (3).

2. The tooth outer circle detection device for odd-numbered helical gear shaft parts according to claim 1, characterized in that: The rotating arm (3) comprises a first horizontal arm (31) and a second horizontal arm (32); the first horizontal arm (31) is connected to the base column (2) via a rotating member (33); the protruding end of the first horizontal arm (31) is connected to the second horizontal arm (32) via the rotating member (33); the protruding end of the second horizontal arm (32) is equipped with the measuring meter (4).

3. The tooth outer circle detection device for odd-numbered helical gear shaft parts according to claim 2, characterized in that: The rotating member (33) comprises a base (331) and a rotating seat (332). The middle parts of the base (331) and the rotating seat (332) are provided with a rotating shaft mounting hole for mounting a central rotating shaft (333). The base (331) and the rotating seat (332) are fixed by the central rotating shaft (333) and rotate around the central rotating shaft (333). The rotating seat (332) is provided with a mounting hole (5) for mounting the first horizontal arm (31). The base (331) is connected to the base column (2) or the second horizontal arm (32) through a locking assembly (6).

4. The tooth outer circle detection device for odd-numbered helical gear shaft parts according to claim 3, characterized in that: The shaft mounting hole of the rotating seat (332) is provided with internal teeth, and the outer peripheral surface of the central rotating shaft (333) is provided with a smooth surface and a toothed surface. The smooth surface of the central rotating shaft (333) is inserted into the base (331) and is fixedly connected to the central rotating shaft (333). The toothed surface of the central rotating shaft (333) is inserted into the rotating seat (332), and the toothed surface is meshed with the internal teeth of the rotating seat (332).

5. The tooth outer circle detection device for odd-numbered helical gear shaft parts according to claim 3, characterized in that: The locking assembly (6) comprises an internally threaded tube (64), the tube mouth of the internally threaded tube (64) is directly connected to a positioning rod (61), the two positioning rods (61) are movably sleeved with a same sliding block (62), the other end of the positioning rod (61) is fixedly connected to the base (331), and the internally threaded tube (64) is threadedly connected to a hand wheel (63).

6. The tooth outer circle detection device for odd-numbered helical gear shaft parts according to claim 1 or 2, characterized in that: The measuring gauge (4) is a micrometer.

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