CN214620980U

CN214620980U - Digital display inspection device

Info

Publication number: CN214620980U
Application number: CN202120393148.1U
Authority: CN
Inventors: 王雷; 徐小明
Original assignee: Shanghai Boiler Works Co Ltd
Current assignee: Shanghai Boiler Works Co Ltd
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-11-05
Anticipated expiration: 2031-02-22

Abstract

The utility model relates to a digital display verifying attachment belongs to detection device technical field. The device comprises a main scale, a needle type fixed measuring head, a reading device, a displacement sensor, a measuring scale, a movable pointed measuring head and a pressing plate; one end of the main scale is provided with a needle type fixed measuring head, the scale surface of one side of the main scale, which is far away from the needle type fixed measuring head, is provided with a measuring scale, and two ends of the measuring scale are provided with pressing plates; a reading device is sleeved on the measuring scale, and a movable pointed measuring head is arranged on the reading device; and a displacement sensor is arranged between the reading device and the measuring scale. The utility model has convenient operation and visual reading; the measured data is accurate; the measuring time is short.

Description

Digital display inspection device

Technical Field

The utility model relates to a digital display verifying attachment belongs to detection device technical field.

Background

The coal-fired generating set usually needs to measure the welding deformation of quiet leaf in the fan, needs to measure the dimensional change between the corresponding appearance punching hole around the quiet leaf. The quiet leaf is the cambered surface structure, is located between the interior urceolus, and the space is narrow and small, and light is dark, and in the current actual operation process, can only bore into by the inspection personnel of thin and small stature and just can accomplish and measure inspection work. In a narrow space, the conventional vernier caliper is too heavy in mass and difficult in reading, the measuring jaw of the caliper is too wide and insufficient in size, and the size between sample punching holes for monitoring the deformation of the static blades cannot be directly measured. Therefore, the technical field needs to solve the problem of how to measure and control the dimension in the stationary blade welding process, and needs to develop a new and convenient detection device to solve the difficulty of dimension control in the welding process.

Disclosure of Invention

The utility model aims at solving the technical problem of how to measure the size between the punching holes of corresponding appearance around the quiet leaf conveniently, how to measure the control of size in the quiet leaf welding process.

In order to solve the above problems, the technical solution adopted by the present invention is to provide a digital display inspection device, which comprises a main scale, a needle type fixed measuring head, a reading device, a displacement sensor, a measuring scale, a movable tip measuring head and a pressing plate; one end of the main scale is provided with a needle type fixed measuring head, the scale surface of one side of the main scale, which is far away from the needle type fixed measuring head, is provided with a measuring scale, and two ends of the measuring scale are provided with pressing plates; a reading device is sleeved on the measuring scale, and a movable pointed measuring head is arranged on the reading device; and a displacement sensor is arranged between the reading device and the measuring scale.

Preferably, the displacement sensor is a linear capacitive sensor.

Preferably, one end of the main scale is provided with a positioning rod perpendicular to the side edge of the main scale, and the tail end of the positioning rod far away from the main scale is provided with a needle type fixed measuring head.

Preferably, the central axis of the positioning rod is parallel to the surface of the main scale and perpendicular to the side edge of the main scale.

Preferably, the side of the measuring ruler is parallel to the side of the main ruler; and two ends of the measuring scale are provided with press plates for limiting the moving position of the reading device.

Preferably, the measuring scale is provided with a reading device which moves along the side parallel to the main scale and is used for displaying the reading of the measurement.

Preferably, a connecting line between the end of the movable pointed measuring head and the end of the needle-type fixed measuring head is parallel to the side edge of the main scale.

Preferably, the other end of the main ruler, which is far away from the needle-type fixed measuring head, is provided with a protective rope connecting hole for penetrating a protective rope sleeve.

Preferably, the main scale is made of a light material.

Preferably, the main scale is made of a wood material.

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

the operation is convenient, and the reading is intuitive; secondly, the measured data is accurate; and measuring time is short.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the main scale of the present invention;

FIG. 3 is a schematic front view of the positioning rod structure of the present invention;

FIG. 4 is a schematic top view of the positioning rod structure of the present invention;

FIG. 5 is a schematic front view of the structure of the present invention;

reference numerals: 1. an inner barrel; 2. an outer cylinder; 3. a stationary blade; 4. a digital display inspection device; 5. a main scale; 6. a positioning rod fixing hole; 7. adjusting the positioning hole by the reading device; 8. a protective rope connecting hole; 9. a positioning rod; 10. a needle type fixed measuring head positioning hole; 11. a needle type fixed measuring head; 12. a reading device; 13. moving the pointed measuring head; 14. pressing a plate; 15. equal-height blocks; 16. protecting the rope sleeve; 17. and (6) measuring the scale.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:

as shown in fig. 1-5, the utility model provides a digital display inspection device 4, which comprises a main scale 5, a needle type fixed measuring head 11, a reading device 12, a displacement sensor, a measuring scale 17, a movable pointed measuring head 13 and a pressing plate 14; a needle type fixed measuring head 11 is arranged at one end of the main scale 5, a measuring scale 17 is arranged on the scale surface of one side of the main scale 5 far away from the needle type fixed measuring head 11, and pressing plates 14 are arranged at two ends of the measuring scale 17; a reading device 12 is sleeved on the measuring scale 17, and a movable pointed measuring head 13 is arranged on the reading device 12; a displacement sensor is arranged between the reading device 12 and the measuring scale 17. The displacement sensor is a linear capacitive grating sensor. One end of the main scale 5 is provided with a positioning rod 9 perpendicular to the side edge of the main scale 5, and the tail end of the positioning rod 9 far away from the main scale 5 is provided with a needle type fixed measuring head 11. The central axis of the positioning rod 9 is parallel to the surface of the main scale 5 and is perpendicular to the side edge of the main scale 5. The side of the measuring ruler 17 is parallel to the side of the main ruler 5; the measuring scale 17 is provided at both ends with pressure plates 14 which limit the displacement position of the reading device 12. The measuring scale 17 is provided with a reading device 12 for displaying the reading of the measurement, which is movable parallel to the side of the main scale 5. The line between the end of the moving pointed measuring head 13 and the end of the needle-type fixed measuring head 11 is parallel to the side of the main scale 5. The other end of the main ruler 5 far away from the needle type fixed measuring head 11 is provided with a protective rope connecting hole 8 for penetrating a protective rope sleeve 16. The main scale 5 is made of a light material, and the main scale 5 is made of a wooden material.

The utility model discloses a manufacture process:

1. and finding a scrapped marking compass, selecting a wood ruler of the marking compass, and cutting out the size of 600mm multiplied by 40mm to be used as a main ruler 5.

2. Drilling two through holes with the diameter of 4mm and the center distance of the two holes of 30mm on the left side of the main scale 5 to form positioning rod fixing holes 6 (the connecting line of the positioning rod fixing holes is vertical to the long side of the main scale 5), then respectively drilling two through holes with the diameter of 4mm and the center distance of the upper and lower holes of 30mm in the middle area of the main scale 5 and on the right side of the main scale, and adjusting positioning holes 7 for a reading device (the connecting line of the upper and lower hole centers is vertical to the long side of the main scale); and drilling a through hole with the diameter of 4mm on the rightmost side of the main ruler to form a protective rope connecting hole 8.

3. Find a bar copper for the locating rod 9, at the side of locating rod upper end, bore and attack two diameters and be 4mm, two hole center distance are 30 mm's through-hole, bore a diameter 3mm, the hole of degree of depth 5mm at the lower extreme of locating rod 9, for needle type fixed measuring head locating hole 10.

4. And finding a scrapped measuring head of the micrometer screw as a needle type fixed measuring head 11.

5. Then a scrapped digital display vernier caliper is found, the fixed measuring jaw is cut off to serve as a reading device 12, and the movable measuring jaw is cut in a linear mode to become a movable pointed measuring head 13.

6. Find the board with the thickness of 1mm, make 2 for the size is 38mm 8mm rectangle board and be clamp plate 14 to bore two diameters at both ends and be 4mm, two hole centre distance is 30 mm's through-hole.

7. Finding a plate with the thickness of 3mm, manufacturing 2 rectangular plates with the size of 40mm multiplied by 10mm into equal-height blocks 15, and drilling two through holes with the diameter of 4mm and the center distance of 30mm at two ends.

8. Find a rope with a length of 300mm to protect the rope sleeve 16.

9. The needle type fixing measuring head 11 is connected and fixed on the positioning rod 9 through the needle type fixing measuring head positioning hole 10, and the positioning rod 9 is fixed on the main scale 5 through the screw and the positioning rod fixing hole 6.

At this time, the positioning rod 9 is perpendicular to the long side of the main scale 5.

10. Two equal-height blocks 15 are respectively arranged in the middle and at the right side of the main scale 5, through holes in the equal-height blocks 15 are overlapped with the reading device adjusting positioning holes 7, the reading device 12 is arranged on the equal-height blocks 15, the reading device 12 is fixed on the main scale 5 through screws and the reading device adjusting positioning holes 7.

At this time, the movable pointed measuring head 13 is perpendicular to the long side of the main scale 5; the distance from the needle-type fixed measuring head 11 to the end face of the long edge 5 is equal to the distance from the movable pointed measuring head 13 to the end face of the long edge 5; the line between the needle-type fixed measuring head 11 and the movable pointed measuring head 13 is parallel to the long side of the main scale 5.

11. One end of the protective rope sleeve 16 passes through the through hole on the right side of the main ruler 5, and then the protective rope sleeve 16 is knotted.

The main scale 5, the positioning rod 9, the reading device 12, the equal-height block 15, the pressing plate 14, the needle type fixed measuring head 11, the movable pointed measuring head 13 and the protective rope sleeve 16 form the digital display inspection device 4.

The utility model discloses an use:

the inner shell of the generator set is complex in structure, comprises an inner cylinder and an outer cylinder and further comprises a plurality of static blades, and is complex in structure, high in technical requirement and difficult to control in a welding process.

When in detection:

1. the fixed size is confirmed. And (3) holding the digital display inspection device 4, pushing the movable pointed measuring head 13 leftwards, aligning the tops of the needle type fixed measuring head 11 and the movable pointed measuring head 13 to two ends of the reference ruler after the left side of the movable pointed measuring head 13 abuts against the left pressing plate 14, and reading and recording the fixed size between the needle type fixed measuring head 11 and the movable pointed measuring head 13.

2. The reading device 12 is set to zero. After the fixed data is recorded, the zero key of the reading device 12 is pressed to display the value on the reading device 12 as zero.

3. The measurements record the dimensions at the time of assembly. After the wrist of a measurer is sleeved in the protective rope sleeve 16, the digital display inspection device 4 is held by hand, the needle type fixed measuring head 11 is aligned to the center of the sample punching hole on the stationary blade 3, the movable pointed measuring head 13 is pulled outwards, the movable pointed measuring head 13 is aligned to the center of the sample punching hole on the inner cylinder 1 or the outer cylinder 2, and the size between the two sample punching hole centers at the moment is read and recorded (the size displayed on the reading device plus the fixed size is the size between the two sample punching hole centers).

4. Similarly, the measurements record the assembly dimensions of the other vanes 3.

5. The measurements were recorded as dimensions at the time of welding. Similarly, according to the method from step 2 to step 3, the dimension of the stator blade 3 during the welding process is measured and recorded. And providing the technology and welding personnel for the size change in time, and adjusting the welding sequence and the welding process in time.

6. The measurements recorded the dimensions after welding. Similarly, according to the method from step 2 to step 3, the dimension of the stator blade 3 after welding is measured and recorded.

The measurement of the welding deformation of the stationary blade requires measurement of dimensional changes between punches of corresponding samples around the stationary blade. The static blade is of a cambered surface structure and is positioned between the inner barrel and the outer barrel, the space is narrow, the light is dark, and measurement can be completed only when a small person drills in. In a narrow space, the conventional vernier caliper is too heavy in mass and difficult in reading, the measuring jaw of the caliper is too wide, the size is insufficient, and the sample punching hole for monitoring the deformation of the static blade cannot be directly measured.

The main ruler of the utility model adopts a wood structure (selecting the wood ruler for scrapping the scribing compasses to ensure the processing precision) which is not easy to deform, thereby reducing the weight; the reading device adopts a display screen of the digital caliper to directly display data; by utilizing the measuring principle of the vernier caliper, the measured data can be accurately reproduced when the device is damaged in use; the measuring heads at two ends adopt a needle-shaped structure, and can directly contact with a sample punching hole.

The utility model relates to a light-duty digital display inspection chi has greatly made things convenient for the manufacturing and the process control of product in the welding deformation monitoring of quiet leaf, has shortened check-out time greatly, can guarantee the product dress again and weld the quality, satisfies technical requirement. The method is convenient to implement, and can be popularized and applied in the manufacturing process of other products. The utility model has convenient operation and visual reading; the measured data is accurate; the measuring time is short.

The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the present invention in any way and in any way, and it should be understood that modifications and additions may be made by those skilled in the art without departing from the scope of the present invention. Those skilled in the art can make various changes, modifications and evolutions equivalent to those made by the above-disclosed technical content without departing from the spirit and scope of the present invention, and all such changes, modifications and evolutions are equivalent embodiments of the present invention; meanwhile, any changes, modifications and evolutions of equivalent changes to the above embodiments according to the actual technology of the present invention are also within the scope of the technical solution of the present invention.

Claims

1. A digital display inspection device, characterized by: the device comprises a main scale, a needle type fixed measuring head, a reading device, a displacement sensor, a measuring scale, a movable pointed measuring head and a pressing plate; one end of the main scale is provided with a needle type fixed measuring head, the scale surface of one side of the main scale, which is far away from the needle type fixed measuring head, is provided with a measuring scale, and two ends of the measuring scale are provided with pressing plates; a reading device is sleeved on the measuring scale, and a movable pointed measuring head is arranged on the reading device; and a displacement sensor is arranged between the reading device and the measuring scale.

2. A digital display inspection apparatus according to claim 1, wherein: the displacement sensor is a linear type capacitive grating sensor.

3. A digital display inspection apparatus according to claim 2, wherein: one end of the main scale is perpendicular to the side edge of the main scale and is provided with a positioning rod, and the tail end of the positioning rod, which is far away from the main scale, is provided with a needle type fixed measuring head.

4. A digital display inspection apparatus according to claim 3, wherein: the central axis of the positioning rod is parallel to the surface of the main scale and is perpendicular to the side edge of the main scale.

5. A digital display inspection apparatus according to claim 4, wherein: the side edge of the measuring scale is parallel to the side edge of the main scale; and two ends of the measuring scale are provided with press plates for limiting the moving position of the reading device.

6. A digital display inspection apparatus according to claim 5, wherein: the measuring scale is sleeved with a reading device which moves along the side parallel to the main scale and is used for displaying the measured reading.

7. A digital display inspection apparatus according to claim 6, wherein: and a connecting line between the tail end of the movable pointed measuring head and the tail end of the needle type fixed measuring head is parallel to the side edge of the main scale.

8. A digital display inspection apparatus according to claim 7, wherein: and a protection rope connecting hole for penetrating a protection rope sleeve is formed in the other end, far away from the needle type fixed measuring head, of the main ruler.

9. A digital display inspection apparatus according to claim 8, wherein: the main scale is made of light materials.

10. A digital display inspection apparatus according to claim 9, wherein: the main scale is made of a wood material.