CN204346328U - A kind of cubing of detection axis class part length - Google Patents

Abstract

The utility model discloses a kind of cubing of detection axis class part length, comprise base plate, rivet holder and dial framework, V-type tray is provided with between rivet holder and dial framework, dial framework is provided with the first dial gauge, base plate is provided with the thrust surface measuring seat that can slide along axis of workpiece direction to be measured, thrust surface measuring seat is provided with and measures switch block and the second dial gauge.This cubing can carry out fast accurate detection to the overall length of axial workpiece and thrust surface distance.

Description

A Checking Tool for Detecting the Length of Shaft Parts

technical field

The utility model relates to a checking tool, in particular to a checking tool for testing the total length of a shaft part and the distance from the thrust surface of the part to the other end surface.

Background technique

According to the requirements of the processing technology, when processing shaft parts as shown in Figure 4, it is necessary to ensure the total length A' of the part and the distance L' between the thrust surface on one side of the part and the end surface of the other end (hereinafter referred to as the thrust surface) distance) to meet the distance dimension requirements. At present, the above two distances are generally detected by vernier calipers or height gauges. This method has large detection errors, cannot guarantee the stability of product quality, and requires multiple measurements. The measurement efficiency is low, and the detection skills of the operator are required. higher.

Contents of the invention

The purpose of the utility model is to provide a checker for detecting the length of shaft parts, which can quickly and accurately detect the total length of the parts and the distance of the thrust surfaces of the parts.

The inspection tool for detecting the length of shaft parts described in the utility model includes a horizontally arranged bottom plate and a seat and a table frame respectively arranged at both ends of the bottom plate, and two V-shaped brackets are arranged at intervals between the seat and the table frame. A first dial indicator is provided on the table frame, and the measuring rod of the first dial indicator passes along the axis direction of the part to be measured, and passes through the guide rail on the bottom plate, and there is a device on the bottom plate that can slide along the axis direction of the part to be measured. The thrust surface measuring seat is provided with a measuring rotary block on the thrust surface measuring seat. The measuring rotary block has a first arm part and a second arm part perpendicular to the first arm part. The front end of the first arm part has Thrust surface measuring claw, a rotating shaft is provided at the junction of the two arms to rotatably connect the measuring rotary block to the thrust surface measuring seat, and a second dial indicator is also provided on the thrust surface measuring seat. The measuring rod of the second dial indicator is perpendicular to the rotating shaft of the measuring rotary block and the sliding direction of the thrust surface measuring seat, and the front end measuring head of the measuring rod is in contact with the second arm of the measuring rotary block.

Further, a return spring is provided between the thrust surface measuring seat and the measuring rotary block.

Further, an axial positioning pin is provided on the seat.

The inspection tool of the utility model detects the length and dimension of the part through the dial indicator, the reading is intuitive, the measurement accuracy can reach 0.01mm, the operation is simple, and the detection skill requirements for the detection personnel are reduced. In addition, the inspection tool only needs to carry out one part inspection operation, and can simultaneously judge whether its total length and thrust surface distance meet the requirements, which greatly improves the inspection efficiency.

Description of drawings

Fig. 1 is a top view of the utility model in use;

Fig. 2 is the structural representation of described thrust surface measuring seat;

Fig. 3 is the schematic diagram of parts to be tested in the utility model;

Fig. 4 is a schematic diagram of the calibration part of the utility model.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to explain the utility model, and do not constitute a limitation to the protection scope of the utility model.

As shown in Fig. 1 and Fig. 2, the inspection tool for detecting the length of shaft parts includes a horizontally arranged bottom plate 1 and abutments 2 and table frames 3 respectively arranged at both lateral ends of the bottom plate. Two V-shaped brackets 4 are arranged at intervals between the seat 2 and the watch frame 3 . An axial positioning pin 201 is arranged on the said seat 2, and a first dial indicator 5 for detecting the total length of the part is arranged on the table frame 3, and the measuring rod of the first dial indicator 5 is along the axis of the part to be measured. direction.

Through two transverse guide rails on the bottom plate, a thrust surface measuring seat 6 that can slide along the axis direction of the part to be measured 9 is provided on the bottom plate 1, and a measuring rotary block 7 and a second percentile are arranged on the thrust surface measuring seat. Table 8, the measuring turret 7 has a first arm portion 701 and a second arm portion 702 perpendicularly connected to the first arm portion, and the front end of the first arm portion 701 has a thrust surface measuring jaw 703 that contacts the thrust surface of the part , The front end measuring head of the measuring rod of the second dial gauge 8 is in contact with the second arm portion 702 of the measuring rotary block. A rotating shaft 704 is provided at the junction of the two arms to rotatably connect the measuring block 7 to the thrust surface measuring seat 6. In this embodiment, the rotating shaft is perpendicular to the base plate, that is, the measuring rotating block 7 is parallel to the base plate. 1 plane. The measuring rod of the second dial indicator 8 is perpendicular to the rotating shaft of the measuring rotary block and the sliding direction of the thrust surface measuring seat, that is, the measuring rod of the second dial indicator is along the radial direction of the part to be measured and parallel to the base plate. The function of the measuring rotary block 7 is to convert the dimensional deviation of the thrust surface in the axial direction to the radial direction by turning a certain angle.

In order to ensure that the thrust surface measuring claw 703 on the measuring rotary block 7 is always pressed against the thrust surface 901 of the part to be measured, a return spring is provided between the thrust surface measuring seat 6 and the measuring rotary block 7 (Fig. not shown).

When the above inspection tool is in use, the calibration piece 10 shown in FIG. 3 is placed on the two V-shaped brackets 4 . The total length A of the calibration piece is the basic size of the total length of the part to be tested, and the distance L between the large end face of the calibration piece and the step surface is the basic size of the distance from the thrust surface of the part to be tested.

The large end surface of the calibration piece 10 is in close contact with the axial positioning pin 201 of the seat, and the other end surface is in contact with the first dial gauge 5 measuring rod on the meter frame, and the thrust surface measuring seat 6 is adjusted to a suitable position so that the The thrust face claw 703 on the measuring rotary block is pressed against the stepped end face of the calibrator, and then the pointers of the two dial gauges are aligned to zero. At this time, the zero position on the first dial gauge and the second dial gauge refers to the total length A and distance L of the calibration piece.

Then remove the calibration piece and keep the parts on the bottom plate in place. In the same way as the calibration part, place the part 9 to be tested in the inspection tool, observe the values of the pointers of the two dial indicators at this time, the value of the first dial indicator is the difference between the actual total length of the part and the theoretical size , the value of the second dial indicator is the difference between the distance of the thrust surface of the part and the theoretical size, so as to judge whether the total length of the part and the distance of the thrust surface meet the requirements.

Claims (3)

1. A checking tool for detecting the length of shaft parts, which is characterized in that it includes a horizontally arranged bottom plate (1) and abutments (2) and table frames (3) respectively arranged at both ends of the bottom plate. There are two V-shaped brackets (4) at intervals, and a first dial indicator (5) is arranged on the table frame. The measuring rod of the first dial indicator passes through the The guide rail, on the base plate is provided with a thrust surface measuring seat (6) that can slide along the axis direction of the part to be measured, and a measuring rotary block (7) is arranged on the thrust surface measuring seat, and the measuring rotary block has a first The arm part (701) and the second arm part (702) vertically connected to the first arm part, the front end of the first arm part has a thrust surface measuring claw (703), and a rotating shaft (704) is set at the junction of the two arm parts The measuring rotary block is rotatably connected with the thrust surface measuring seat, and a second dial indicator (8) is also arranged on the thrust surface measuring seat, and the measuring rod of the second dial indicator is connected with the measuring rotary block The rotating shaft and the sliding direction of the thrust surface measuring seat are vertical, and the front end measuring head of the measuring rod is in contact with the second arm of the measuring rotary block. 2. The inspection tool for detecting the length of shaft parts according to claim 1, characterized in that: a return spring is provided between the thrust surface measuring seat (6) and the measuring rotary block (7). 3. The inspection tool for detecting the length of shaft parts according to claim 1 or 2, characterized in that: an axial positioning pin (201) is arranged on the seat (2).