CN204649141U - Direct-type profile of tooth angle deviation check device - Google Patents

Abstract

The utility model discloses a direct tooth form center angle deviation inspection device, which relates to the field of tooth form center angle deviation measurement. It includes a base, a bracket fixedly installed on the side of the base, a pair of linear rolling guides fixed on the bracket, and a positioning top installed on the pair of linear rolling guides. It also includes a hand wheel lifting and rotating device fixed on the upper end of the support, a positioning turntable installed on the upper part of the base, the positioning turntable has a watch rod positioning hole, and the measuring meter is installed in the watch rod positioning hole. The bottom of the base has a set screw mounting hole, and the set screw is installed in the set screw mounting hole. Locate the center of the tooth shape of the tested part through the positioning screw and the dial indicator head, and determine the angular deviation of the center of the two tooth shapes of the double spline of the tested part by the deviation between the base and the base line of the positioning turntable. The detection data is intuitive, accurate, and the method is simple. , effectively avoiding the disadvantages of large measurement errors and cumbersome conversion calculations caused by the indirect measurement method, with high measurement efficiency and small size.

Description

Direct tooth shape center angle deviation inspection device

technical field

The utility model relates to the field of tooth shape center angle deviation measurement, in particular to a direct tooth shape center angle deviation inspection device.

Background technique

At present, there are two basic methods for detecting the angular deviation of the tooth profile center: photoelectric detection and indirect detection.

Photoelectric detection: special photoelectric measurement equipment is required, and there are high requirements for the measurement environment and operators. The measurement cost is high and the measurement cycle is long. It is not suitable for on-site mass production measurement, and is only suitable for sampling inspection.

Indirect detection: As shown in Figure 1, use the detection platform, the top of the tailstock, and the height gauge to detect the heights h1 and h2 of the two tooth profile pitch circles of the part in the same symmetrical axis from the base surface of the detection platform, as shown in Figure 3 Shown, calculate the height difference Δh=h1-h2≈C, and the angular deviation of the two tooth centers is Δα=2arcsinΔh/d, where d is the diameter of the toothed part.

The main disadvantages of indirect detection:

1. During detection, it is difficult to accurately locate the detection point of the tooth shape joint circle, and the measurement error is large;

2. The measurement data must be calculated and converted to obtain the tooth profile center angle deviation, and the steps are cumbersome;

3. The detection platform is large in size, which is not convenient for on-site installation and storage, and the auxiliary detection time is long.

Utility model content

The purpose of this utility model is to overcome the disadvantages of poor detection accuracy and cumbersome angle deviation conversion caused by the detection of the height of the joint in the prior art, and to solve the problems of high measurement cost and long measurement period in photoelectric detection. The utility model provides a A device for visually detecting the angular deviation of the tooth profile center of a part.

In order to solve the above-mentioned technical problems and achieve technical effects, the utility model adopts the following technical solutions: a direct tooth shape center angle deviation inspection device, which includes a base, a bracket, a linear rolling guide pair, a positioning top, and a hand wheel lifting and rotating device , Positioning turntable, measuring table, positioning screws and measured parts. The bracket is fixedly installed on the side of the base, the linear rolling guide pair is fixed on the bracket, and fixed on the inner side of the bracket relative to the base, the positioning top is installed on the linear rolling guide pair, and the center line of the positioning top is in line with the The centerlines of the parts under test are on the same datum line. The hand wheel lifting and rotating device is fixed on the upper end of the bracket, and is used to drive the positioning top to move up and down on the linear rolling guide rail pair, and lock the measured part. The positioning turntable is installed on the top of the base, and the positioning turntable has a watch rod positioning hole, and the measuring gauge is installed in the watch rod positioning hole. The bottom part of the base has a positioning screw mounting hole, and the positioning screw is installed in the positioning screw mounting hole; the centers of the watch rod positioning hole and the positioning screw mounting hole are on the same reference line. The above-mentioned linear rolling guide pair is composed of a guide rail, a slider, a steel ball, a reverser, a cage, a sealing end cover and a baffle, etc. When the guide rail and the slider move relatively, the steel balls roll along the four hardened and precision-ground raceways on the guide rail, and the steel balls at the end of the slider pass through the return device (return device) ) enters the return hole and then enters the raceway, and the steel ball rolls in circles like this. Both ends of the reverser are equipped with dust-proof sealing end covers, which can effectively prevent dust and chips from entering the inside of the slider.

A further technical solution is: the upper part of the base has a positioning notch, and the positioning turntable is installed on the positioning notch of the base.

A further technical solution is: the measuring gauge includes a table stem fixing press block matched with it, and the gauge stem fixing pressing block is used to lock the measuring gauge.

A further technical solution is that: the base has a fixed center matched with the measured part, and the center line of the fixed center is on the same reference line as the center line of the positioning center.

A further technical scheme is: the measuring table is a dial gauge.

Compared with the prior art, the utility model has the following beneficial effects:

Locate the center of the tooth shape of the tested part through the positioning screw and the dial indicator head, and determine the angular deviation of the center of the tooth shape of the double spline of the tested part by the deviation between the base and the base line of the positioning turntable. The detection data is intuitive and the detection method is simple. The measurement data is accurate, which effectively avoids the disadvantages of large measurement errors and cumbersome conversion calculations caused by the indirect measurement method. It has high measurement efficiency and small size.

Description of drawings

Fig. 1 is a structural diagram of indirect detection of tooth profile center angle deviation in the prior art;

Fig. 2 is a schematic diagram of the device shown in Fig. 1 to indirectly detect the angular deviation of the center of the tooth profile, where a and b are shown as being in the same axis line, and the tooth gap deviation is 25 degrees;

Fig. 3 is a conversion diagram of the device shown in Fig. 1 to indirectly detect the angle deviation of the center of the tooth shape;

Fig. 4 is a structural diagram of the utility model direct gear shape center angle deviation detection device;

Fig. 5 is a schematic diagram of the utility model direct gear center angle deviation detection, in which a and b are shown as being in the same axis line, and the tooth groove deviation is 25 degrees;

Fig. 6 is a schematic diagram of the reading of the direct tooth center angle deviation detection of the utility model.

Detailed ways

Below in conjunction with the embodiment of the utility model, the utility model is further elaborated and illustrated.

Example:

As shown in Figure 4, a direct tooth shape center angle deviation inspection device includes a base 8, a bracket 11, a linear rolling guide rail pair 2, a positioning top 3, a handwheel lifting and rotating device 1, a positioning turntable 5, and a measuring table 7 , table stem fixed pressure block 6, set screw 9, fixed top 10 and measured part 4. The bracket 11 is fixed on the side of the base 8 by screws, the linear rolling guide rail pair 2 is fixed on the bracket 11 by screws, and is fixed on the inner side of the bracket 11 relative to the base 8, and the positioning top 3 is installed on the linear rolling guide rail pair 2 , the centerline of the positioning tip 3 and the centerline of the measured part 4 are on the same reference line. The handwheel lifting and rotating device 1 is fixed on the upper end of the bracket 11 by screws, and is used to drive the positioning top 3 to move up and down on the linear rolling guide pair 2, and lock the measured part 4. The top of the base 8 has a positioning notch, and the positioning dial 5 is installed on the positioning notch of the base 8. The positioning dial 5 has a table rod positioning hole, and the measuring gauge 7 is installed in the table rod positioning hole. The above-mentioned measuring table is a dial indicator , the head of the dial indicator contacts the bottom of the toothed groove of the detected part 4, and is locked by the fixed pressure block 6 of the table rod. The bottom of the base 8 has a set screw mounting hole, and the set screw 9 is installed in the set screw mounting hole. The centers of the watch rod positioning hole and the positioning screw mounting hole are on the same reference line.

As shown in Figure 6, adjust the positioning screw 9 to lock the tooth center of the lower part of the detected part 4, and turn the adjustment positioning dial 5 to make the pointer of the dial indicator at the minimum position. The center of the groove, the difference between the circumferential scale of the base and the positioning turntable is the angular deviation of the upper and lower tooth profile centers of the tested part.

It can be understood that, the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present utility model, and these variations and improvements are also regarded as the protection scope of the present utility model.

Claims (5)

1. a direct-type profile of tooth angle deviation check device, is characterized in that: it comprises pedestal (8), support (11), straight-line rolling guide set (2), locating centre (3), handwheel lift rotating equipment (1), locating turntable (5), meter (7), dog screw (9) and tested part (4); Described support (11) is fixedly mounted on the side of pedestal (8), straight-line rolling guide set (2) is fixed on support (11), and be fixed on the inner side of support (11) relative to pedestal (8), locating centre (3) is arranged on straight-line rolling guide set (2), and the center line of described locating centre (3) and the center line of tested part (4) are positioned on same datum line; Described handwheel lift rotating equipment (1) is fixed on the upper end of support (11), for driving locating centre (3) to move up and down on straight-line rolling guide set (2), and locking tested part (4); Described locating turntable (5) is arranged on the top of pedestal (8), and locating turntable (5) has table bar pilot hole, and described meter (7) is installed in table bar pilot hole; The bottom of described pedestal (8) has dog screw mounting hole, and described dog screw (9) is arranged in dog screw mounting hole; The center of described table bar pilot hole and dog screw mounting hole is on same datum line.

2. direct-type profile of tooth angle deviation check device according to claim 1, it is characterized in that: the top of described pedestal (8) has positioning spigot, described locating turntable (5) is arranged on the positioning spigot of pedestal (8).

3. direct-type profile of tooth angle deviation check device according to claim 1 and 2, it is characterized in that: described meter (7) comprises the table bar matched with it and fixes briquetting (6), table bar fixes briquetting (6) for locking meter (7).

4. direct-type profile of tooth angle deviation check device according to claim 1 and 2, it is characterized in that: described pedestal (8) has the stationary center (10) matched with tested part (4), the center line of described stationary center (10) and the center line of locating centre (3) are positioned on same datum line.

5. direct-type profile of tooth angle deviation check device according to claim 1 and 2, is characterized in that: meter (7) is dial gauge.