CN212512813U

CN212512813U - Local length rapid detection device

Info

Publication number: CN212512813U
Application number: CN202021232880.2U
Authority: CN
Inventors: 韩智磊; 石传美
Original assignee: Shanghai Aolin Auto Safety System Co ltd
Current assignee: Shanghai Aolin Auto Safety System Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-09
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to a quick detection device for local length, which comprises a base station, a supporting tube, a dial indicator, a frame body and a servo motor, wherein the dial indicator is fixedly arranged on the supporting tube, and a measuring rod of the dial indicator is inserted in the supporting tube; the frame body is arranged on the base station, and a part fixing device is arranged on the frame body; the servo motor is arranged on the base station, an output shaft of the servo motor is connected with a telescopic rod, external threads are arranged on the telescopic rod, and an internal thread hole is formed in the frame body. Compared with the prior art, the utility model discloses a U type support body and part fixing device realize waiting to detect the vertical spacing of part to the vertical position adjustment of waiting to detect the part is realized to the fastening part among accessible U type support body and the part fixing device, with the multiple size of this adaptation wait to detect the part, can combine to realize local length short-term test with the percentage table accurately, realize the reading mark of standard value through photosensitive sensor, realize the quick check of member class part reading.

Description

Local length rapid detection device

Technical Field

The utility model belongs to the technical field of the part size detection device and specifically relates to a local length short-term test device is related to.

Background

Dial gauges are commonly used for length measurements of shape and position errors and small displacements. The dial plate of the dial indicator is printed with 100 equal division scales, namely each division value is equivalent to the movement of the measuring rod by 0.01 mm. The shape of the measuring head is changed and matched with a corresponding support, and deformation varieties of dial indicators, such as a thickness dial indicator, a depth dial indicator and an inner diameter dial indicator, can be manufactured. If the lever is used to replace rack, a lever dial indicator and a lever dial indicator can be made, and the indication range is small, but the sensitivity is high. In addition, the measuring heads can rotate in a certain angle, and the measuring head can adapt to measurement in different directions and has a compact structure. They are suitable for measuring the shape and position errors of excircle, small hole and groove, etc. which are difficult to measure by common dial indicator.

The member class part includes rods such as screw rod, smooth reducing rod, adopts the percentage table to carry out external diameter detection to member class part at present, only can realize the promotion displacement of member class part through simple spacing parts such as fixed stop for member class part supports and presses in the measuring stick lower surface, but simple limit structure and the manual level of operator promote can cause great error to the testing process, and this is the technical problem that needs to solve at present urgently. On the other hand, the outer diameter of the rod part needs to be recorded for many times in the detection process, so that whether the size standard of the rod part is met or not is checked, but the efficiency of the detection process is difficult to improve due to manual reading for many times.

SUMMERY OF THE UTILITY MODEL

This technical scheme realizes waiting to detect the vertical spacing of part through U type support body and part fixing device to the vertical position adjustment of waiting to detect the part is realized to fastening part among accessible U type support body and the part fixing device, with this adaptation multiple size wait to detect the part, can combine with the percentage table with the precision and realize local length short-term test, realizes the reading mark of standard value through photosensitive sensor, realizes the quick check of member class part reading.

The detailed technical scheme is as follows:

the utility model discloses well local length short-term test device, including base station, stay tube, percentage table, support body, servo motor, wherein specifically:

the supporting tube is vertically arranged on the base station, and a sample inlet hole of the part to be detected is formed in the supporting tube;

the dial indicator is fixedly arranged on the supporting tube, and a measuring rod of the dial indicator is inserted in the supporting tube;

the frame body is arranged on the base station, and a part fixing device is arranged on the frame body;

the servo motor is arranged on the base station, a telescopic rod is connected to an output shaft of the servo motor, external threads are arranged on the telescopic rod, an internal thread hole is formed in the frame body, when the output shaft of the servo motor rotates, the telescopic rod horizontally penetrates through the frame body and is pressed against the part to be detected along the axial direction, the part to be detected is pressed against the lower edge of the measuring rod along the axial direction and continuously displaces, and the dial indicator rotates to obtain the diameter change of the part to be detected.

Furthermore, the lower surface of the measuring rod is provided with an inclined chamfer.

Furthermore, the height of the bevel chamfer is 1/20-1/5 of the length of the measuring rod, preferably 1/15-1/6.

Furthermore, when the output shaft of the servo motor rotates, the part to be detected firstly abuts against the inclined chamfer of the measuring rod along the axial direction of the part to be detected, and then the measuring rod retreats and abuts against the lower edge of the measuring rod to carry out continuous displacement.

Further, the support body is U type structure, includes two horizontal poles and connects the montant between two horizontal poles.

Further, the part fixing device comprises a first fixing screw and a second fixing screw;

the two cross rods are provided with internal thread holes;

the first fixing screw and the second fixing screw respectively penetrate through the internal thread holes in the two cross rods and are abutted against the part to be detected, and vertical limiting of the part to be detected is achieved.

Furthermore, the first fixing screw and the second fixing screw are respectively provided with a first pressing plate and a second pressing plate which are abutted to one ends of the parts to be detected, and the parts to be detected are abutted and pressed for limitation through the first pressing plate and the second pressing plate.

Furthermore, the first pressing plate and the second pressing plate are provided with groove structures matched with the part to be detected.

Furthermore, a dial plate of the dial indicator is provided with a first photoresistor and a second photoresistor;

the first photoresistor and the second photoresistor are strip-type photoresistors;

the first photosensitive resistor and the second photosensitive resistor are detachably attached to the dial plate;

the first photoresistor and the second photoresistor can be arranged at any angle.

Furthermore, the local length rapid detection device is also provided with a microprocessor;

the microprocessor is electrically connected with the first photoresistor and the second photoresistor respectively.

Furthermore, an output shaft of the servo motor is connected with a gearbox, so that the output rotating speed is adjusted.

Compared with the prior art, the utility model has the advantages of it is following:

1) vertical spacing of waiting to detect the part is realized through U type support body and part fixing device among this technical scheme to the vertical position adjustment of waiting to detect the part is realized to fastening element among accessible U type support body and the part fixing device, with the part that waits to detect of this multiple size of adaptation.

2) Among the material pushing component among this technical scheme, accessible servo motor cooperation U type support body and part fixing device carry out the level of high accuracy and promote, and the structure is accurate and mutually support between the three, has guaranteed to detect the procedural level of detecting the part and has promoted.

3) This technical scheme has realized the teaching process of testing of setting for the reading range through the first photo resistance and the second photo resistance of strip type, and the diameter numerical value that first photo resistance and second photo resistance correspond is two test standard numerical values of waiting to detect the part promptly, can obtain corresponding signal when the pointer stops or passes through on the photo resistance, and the signal of telecommunication that obtains when stopping and passing through has apparent difference to this detects whether satisfies the standard size.

Drawings

Fig. 1 is the structure schematic diagram of the rapid detection device for the local length in the utility model.

1. Base station, 2, stay tube, 3, percentage table, 4, measuring stick, 5, inclined plane chamfer, 6, support body, 7, servo motor, 8, telescopic link, 9, wait to detect the part, 10, first clamping screw, 11, second clamping screw, 12, first clamp plate that supports, 13, second support clamp plate, 14, pointer, 15, first photo resistance, 16, second photo resistance.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

The quick detection device of local length in this embodiment includes base station 1, stay tube 2, percentage table 3, support body 6, servo motor 7, refers to fig. 1.

The supporting tube 2 is vertically arranged on the base platform 1, and a sample inlet hole of the part 9 to be detected is formed in the supporting tube.

The dial indicator 3 is fixedly arranged on the supporting tube 2, a measuring rod 4 of the dial indicator 3 is inserted in the supporting tube 2, and an inclined chamfer 5 is arranged on the lower surface of the measuring rod 4. The height of the bevel chamfer 5 is 1/20-1/5 of the length of the measuring rod 4, preferably 1/15-1/6.

The servo motor 7 is arranged on the base platform 1, an output shaft of the servo motor 7 is connected with a telescopic rod 8, an external thread is arranged on the telescopic rod 8, an internal thread hole is formed in the frame body 6, when the output shaft of the servo motor 7 rotates, the telescopic rod 8 horizontally penetrates through the frame body 6 and is pressed on the part 9 to be detected along the axial direction, the part 9 to be detected is pressed on the lower edge of the measuring rod 4 along the axial direction and continuously moves, and the pointer of the dial indicator 3 rotates to obtain the diameter change of the part 9 to be detected. When the output shaft of the servo motor 7 rotates, the part 9 to be detected firstly abuts against the inclined chamfer 5 of the measuring rod 4 along the axial direction, and then the measuring rod 4 retreats and abuts against the lower edge of the measuring rod 4 for continuous displacement. During specific implementation, the output shaft of the servo motor 7 is connected with a gearbox, so that the output rotating speed is adjusted. In the implementation process, the servo motor 7 can be matched with the U-shaped frame body 6 and the part fixing device to perform high-precision horizontal pushing, the three parts are precise in structure and matched with each other, programmed horizontal pushing of the part 9 to be detected is guaranteed, the servo motor 7 can be connected with the microprocessor, programmed operation is achieved, and the flow requirement of testing is met.

The support body 6 is arranged on the base station 1, and the support body 6 is provided with a part fixing device. The support body 6 is of a U-shaped structure and comprises two cross rods and a vertical rod connected between the two cross rods. The part fixing device comprises a first fixing screw rod 10 and a second fixing screw rod 11; internal thread holes are formed in the two cross rods; the first fixing screw 10 and the second fixing screw 11 respectively penetrate through the internal thread holes in the two cross rods and abut against the part 9 to be detected, so that the part 9 to be detected is vertically limited. One end of the first fixing screw 10 and one end of the second fixing screw 11, which are close to the part 9 to be detected, are respectively provided with a first pressing plate 12 and a second pressing plate 13, and the part 9 to be detected is pressed and limited by the first pressing plate 12 and the second pressing plate 13. The first pressing plate 12 and the second pressing plate 13 are provided with groove structures matched with the part 9 to be detected. The vertical limiting of the part 9 to be detected is realized through the U-shaped frame body 6 and the part fixing device, and the vertical position adjustment of the part 9 to be detected can be realized through the U-shaped frame body 6 and a fastening part in the part fixing device, so that the part 9 to be detected in various sizes can be adapted.

The dial plate of the dial indicator 3 is provided with a first light-sensitive resistor 15 and a second light-sensitive resistor 16. The first photo-resistor 15 and the second photo-resistor 16 are strip type photo-resistors. The first light-sensitive resistor 15 and the second light-sensitive resistor 16 are detachably attached to the dial plate; the first photo-resistor 15 and the second photo-resistor 16 may be arranged at any angle. The quick local length detection device is also provided with a microprocessor, and an ARM processor is preferably selected during specific implementation. The microprocessor is electrically connected to said first and second photoresistors 15 and 16, respectively. The teaching process of setting the reading range is realized through the first photosensitive resistor 15 and the second photosensitive resistor 16 of strip type, namely the diameter numerical values corresponding to the first photosensitive resistor 15 and the second photosensitive resistor 16 are two testing standard numerical values of the part 9 to be detected, corresponding signals can be obtained when a pointer stays or passes on the photosensitive resistors, the obtained signals are processed by the microprocessor, and the microprocessor detects whether the standard size is met or not so as to transmit the signals to an external man-machine interaction interface.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A local length rapid detection device, characterized by comprising:

a base (1);

the supporting tube (2) is vertically arranged on the base station (1), and is provided with a sample inlet hole of a part (9) to be detected;

the dial indicator (3) is fixedly arranged on the supporting tube (2), and a measuring rod (4) of the dial indicator (3) is inserted in the supporting tube (2);

the frame body (6) is arranged on the base station (1), and a part fixing device is arranged on the frame body (6);

servo motor (7) is located on base station (1), be connected with telescopic link (8) on the output shaft of servo motor (7), be equipped with the external screw thread on telescopic link (8), be equipped with the internal thread hole on support body (6), when the output shaft of servo motor (7) rotated, telescopic link (8) level was passed support body (6) and along the axial support to press on waiting to detect part (9) for wait to detect part (9) along its axial support to press in measuring stick (4) is followed down and is lasted the displacement, and percentage table (3) pointer rotates and obtains the diameter change of waiting to detect part (9).

2. The device for rapid detection of local length as claimed in claim 1, wherein the lower surface of the measuring rod (4) is provided with a bevel chamfer (5).

3. The device for rapidly detecting the local length as claimed in claim 2, wherein the height of the bevel chamfer (5) is 1/20-1/5 of the length of the measuring rod (4).

4. The device for rapidly detecting the local length as claimed in claim 2, wherein when the output shaft of the servo motor (7) rotates, the part (9) to be detected firstly abuts against the bevel chamfer (5) of the measuring rod (4) along the axial direction, and then the measuring rod (4) retracts and abuts against the lower edge of the measuring rod (4) to perform continuous displacement.

5. The device for rapidly detecting the local length as claimed in claim 1, wherein the frame body (6) is of a U-shaped structure and comprises two cross rods and a vertical rod connected between the two cross rods.

6. The local length rapid detection device according to claim 5, wherein the part fixing device comprises a first fixing screw (10) and a second fixing screw (11);

the two cross rods are provided with internal thread holes;

the first fixing screw (10) and the second fixing screw (11) respectively penetrate through the internal thread holes in the two cross rods and are abutted against the part (9) to be detected, and vertical limiting of the part (9) to be detected is achieved.

7. The device for rapidly detecting the local length according to claim 6, wherein a first pressing plate (12) and a second pressing plate (13) are respectively arranged at one end of the first fixing screw (10) and one end of the second fixing screw (11) close to the part (9) to be detected, and the part (9) to be detected is pressed and limited through the first pressing plate (12) and the second pressing plate (13).

8. The device for rapidly detecting the local length according to claim 7, wherein the first pressing plate (12) and the second pressing plate (13) are provided with groove structures matched with the part (9) to be detected.

9. The quick local length detection device as claimed in claim 1, wherein a dial plate of said dial indicator (3) is provided with a first light-sensitive resistor (15) and a second light-sensitive resistor (16);

the first photoresistor (15) and the second photoresistor (16) are strip-type photoresistors;

the first light-sensitive resistor (15) and the second light-sensitive resistor (16) are detachably attached to the dial plate;

the first photoresistor (15) and the second photoresistor (16) can be arranged at any angle.

10. The quick local length detection device as claimed in claim 9, wherein the quick local length detection device is further provided with a microprocessor;

the microprocessor is electrically connected with the first light-sensitive resistor (15) and the second light-sensitive resistor (16) respectively.