CN202814309U - Parallelism and height dimension detecting device - Google Patents

Abstract

The utility model discloses a parallelism and height dimension detecting device. The parallelism and height dimension detecting device comprises an indication component and a measurement component, wherein the indication component is arranged on the outer side wall of the measurement component through a screw, and a reference calibrating block is arranged on an upper reference plane of the measurement component and used for calibration. In the abovementioned way, the parallelism and height dimension detecting device is simple and practical in design structure and can be used for conveniently, extensively, quickly and accurately detecting the parallelism and height dimension of an end face relative to the reference face in factory production; and moreover, the height error value can be read out directly, thereby greatly improving the production detection efficiency.

Description

A parallelism and height dimension detection device

technical field

The utility model relates to a detection device, in particular to a parallelism and height dimension detection device. the

Background technique

Parallelism refers to the degree to which two planes or two lines are parallel. It is one of the important parameters that need to be strictly inspected and controlled in the production process. It is related to the mutual positional relationship between parts after assembly and the operation stability of equipment, such as air-conditioning compressors. There is a requirement for the parallelism of the end face relative to the reference plane on the end cover. There are many general-purpose measuring tools for the measurement of parallelism, and different parts have different methods, such as using a micrometer to measure multiple point dimensions or using a dial indicator to slide on a flat plate The method of measurement, but it is often impossible to measure with general measuring tools and conventional methods due to the limitations of the part structure, and it is measured with a three-coordinate measuring machine. The disadvantage is that it takes a lot of measuring points during the measurement, which is time-consuming. High, high environmental requirements, and it is not convenient for continuous measurement of the production line. If it is a single piece or small batch trial production and inspection, use three-coordinate measurement. If it is mass production and online inspection, use three-coordinate measurement. Delay production and reduce production efficiency. the

Contents of the invention

The technical problem mainly solved by the utility model is to provide a parallelism and height dimension detection device, the design structure of which is simple and practical, which is convenient for large batches in factory production to quickly and accurately detect the parallelism and height dimension of a certain end surface relative to the reference plane, Moreover, the height error value can be read intuitively, which greatly improves the production detection efficiency. the

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a parallelism and height dimension detection device, the parallelism and height dimension detection device includes an indicating assembly and a measuring assembly, and the indicating assembly is installed on the On the outer wall of the measurement assembly, a reference calibration block for calibration is provided on the upper datum surface of the measurement assembly. the

Preferably, the indication assembly includes a dial gauge, a copper sleeve, and a watch frame, and the dial rod of the dial gauge is inserted into the mounting hole of the dial rack, and a dial indicator is installed between the dial rod of the dial gauge and the inner wall of the dial rack. There is a copper sleeve, and the copper sleeve is set on the dial indicator rod, and the dial indicator with the copper sleeve is fixed on the watch frame by screws, and the watch frame is also provided with a long waist avoidance hole A. the

Preferably, the measurement assembly includes a reference cylinder, a shaft sleeve, a movable shaft, a measuring head, a connecting rod and a spring, a sectional surface is provided on the outer wall of the reference cylinder, and a table frame is fixed on the sectional surface, and the reference cylinder A long waist avoidance hole B of the same shape and size is provided at the position corresponding to the long waist avoidance hole A on the cut surface; a shaft sleeve with an upward opening is fixed on the lower bottom surface of the reference cylinder, and a shaft sleeve is provided on the arc wall of the shaft sleeve. There is a long waist-shaped through hole in the direction, and the spring and the movable shaft are arranged in sequence from bottom to top in the bushing, and the upper end of the movable shaft is provided with a measuring head. The long waist-shaped through hole, the long waist-shaped escape hole B and the long waist-shaped avoidance hole A are behind the lower end of the measuring rod of the dial indicator, and the upper ring surface of the reference cylinder is the upper reference plane. the

Preferably, the reference calibration block includes a reference plate and two reference feet, the upper ends of the two reference feet are respectively fixed on the lower planes at both ends of the reference plate by screws, and the lower ends of the two reference feet are respectively against the bottom of the reference cylinder. upper datum. the

The beneficial effects of the utility model are: the utility model is a parallelism and height dimension detection device, its design structure is simple and practical, and it is convenient for large batches in factory production to quickly and accurately detect the parallelism and height dimension of a certain end surface relative to the reference plane , and can intuitively read the height error value, greatly improving the production detection efficiency. the

Description of drawings

Fig. 1 is a schematic diagram of the correction state structure of a parallelism and height dimension detection device of the present utility model;

Fig. 2 is a schematic diagram of workpiece measurement of a parallelism and height dimension detection device of the present invention;

Fig. 3 is a schematic diagram of a reference calibration block of a parallelism and height dimension detection device of the present invention.

Detailed ways

The preferred embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, so as to make a clearer definition of the protection scope of the utility model. the

See also shown in Fig. 1 to Fig. 3, the utility model embodiment comprises:

A parallelism and height dimension detection device, the parallelism and height dimension detection device includes an indicating assembly 1 and a measuring assembly 2, the indicating assembly 1 is installed on the outer side wall of the measuring assembly 2 by screws, the measuring assembly 2 The upper datum surface 5 is provided with a reference calibration block 3 for verification; the indicating assembly 1 includes a dial indicator 11, a copper sleeve 12, and a meter frame 13, and the meter rod of the dial indicator 11 is inserted into the installation of the meter frame 13. In the hole, a copper sleeve 12 is provided between the dial gauge 11 rod and the meter frame 13 installation inner wall, and the copper sleeve 12 is placed on the dial gauge 11 rod, and the dial gauge 12 is covered with a screw. The submeter 11 is fixed on the table frame 13 together, and the table frame 13 is also provided with a long waist-shaped avoidance hole A14; the measurement 2 assembly includes a reference cylinder 21, a shaft sleeve 22, a movable shaft 23, a measuring head 24, and a connecting rod. Rod 25 and spring 26, the outer wall of described reference cylinder 21 is provided with a sectional surface 27, and table frame 13 is fixed on the sectional surface 27, and the sectional surface of reference cylinder 21 is provided with the position corresponding to the long waist avoidance hole A14 of the same shape. The long waist-shaped avoidance hole B28 of the same size; the lower bottom surface in the reference cylinder 21 is fixed with an upward-opening shaft sleeve 22, and the arc wall of the shaft sleeve 22 is provided with an axial long waist-shaped through hole 29, and the shaft sleeve 22 A spring 26 and a movable shaft 23 are sequentially arranged inside from bottom to top. The upper end of the movable shaft 23 is provided with a measuring head 24, and the position of the lower end surface of the movable shaft 23 is fixedly connected with a connecting rod 25, and the connecting rod 25 passes through the long waist in turn. The through hole 29, the long waist-shaped avoidance hole B28 and the long waist-shaped avoidance hole A14 are behind the measuring rod lower end of the dial indicator 11, and the upper ring surface that also includes the reference cylinder 21 is the upper reference plane 5, and the upper reference plane and The lower reference surface of the air-conditioning compressor end cover contacts; the reference calibration block 4 includes a reference plate 41 and two reference feet 42, and the upper ends of the two reference feet 42 are respectively fixed on the lower plane at the two ends of the reference plate 41 by screws. The lower ends of the two reference feet 42 lean against the upper reference surface 5 of the reference cylinder 21 respectively.

The working method of a parallelism and height dimension detection device of the utility model is: the reference foot of the reference calibration block 3 is close to the upper reference surface of the reference cylinder, and at the same time, the lower plane of the reference plate of the reference calibration block compresses the measuring head to drive the movable shaft and the connection Move the rod downwards, adjust the position of the dial indicator in the indicating assembly, so that the pointer of the dial indicator is in a properly compressed state, and then reset the dial indicator; then put the reference surface of the workpiece close to the upper surface of the reference cylinder The reference plane, the measured surface presses the measuring head, and after turning the workpiece one circle, the variation of the dial indicator is the parallelism; the reference value plus the variation is the height dimension. the

The utility model is a parallelism and height dimension detection device, which has a simple and practical design structure, which is convenient for large batches in factory production to quickly and accurately detect the parallelism and height dimension of a certain end surface relative to a reference plane, and can intuitively read the height The error value greatly improves the production detection efficiency. the

The above descriptions are only embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way. the

Claims (4)

1. A parallelism and height dimension detection device is characterized in that: the parallelism and height dimension detection device comprises an indicating assembly and a measuring assembly, and the indicating assembly is mounted on the outer sidewall of the measuring assembly by screws, and the measuring assembly There is a reference calibration block for calibration on the upper reference surface. 2. A kind of parallelism and height dimension detection device according to claim 1, characterized in that: said indicating assembly comprises a dial indicator, a copper sleeve, and a watch frame, and the table rod of said dial indicator is inserted into the table frame In the installation hole, there is a copper sleeve between the dial indicator rod and the inner wall of the meter frame. Frame, also includes that the table frame is provided with a long waist avoidance hole A. 3. A parallelism and height dimension detection device according to claim 1, characterized in that: the measuring assembly comprises a reference cylinder, a bushing, a movable shaft, a measuring head, a connecting rod and a spring, and the reference cylinder A sectional surface is provided on the outer wall, and a table frame is fixed on the sectional surface, and a long waist-shaped avoidance hole B of the same shape and size is provided on the position corresponding to the long waist-shaped avoidance hole A of the reference cylinder; the lower part of the reference cylinder A shaft sleeve with an upward opening is fixed on the bottom surface, and an axial long waist-shaped through hole is provided on the arc wall of the shaft sleeve. A spring and a movable shaft are arranged in the shaft sleeve from bottom to top, and a measuring head is arranged on the upper end of the movable shaft. , the position of the movable shaft close to the lower end surface is fixedly connected with the connecting rod, and the connecting rod passes through the long waist-shaped through hole, the long waist-shaped escape hole B and the long waist-shaped avoidance hole A in turn, and then touches the lower end of the measuring rod of the dial indicator. The description also includes the upper annular surface of the reference cylinder as the upper reference surface. 4. A kind of parallelism and height dimension detecting device according to claim 1, characterized in that: said reference calibration block comprises a reference plate and two reference feet, and the upper ends of said two reference feet are respectively fixed on the The lower planes at both ends of the reference plate, and the lower ends of the two reference feet lean against the upper reference plane of the reference cylinder respectively.

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