CN212300178U

CN212300178U - Alignment frock

Info

Publication number: CN212300178U
Application number: CN202021758912.2U
Authority: CN
Inventors: 屈志; 陈佳明; 马小雄
Original assignee: Sichuan Weizhen Hi Tech Material Co ltd
Current assignee: Sichuan Weizhen Hi Tech Material Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-01-05
Anticipated expiration: 2030-08-20

Abstract

The utility model provides an alignment frock relates to vertical centrifuge mould alignment technical field. The alignment tool comprises a measuring fixing piece, a scale plate, a measuring swinging piece and a measuring rod. The scale plate is provided with scales and is fixed on the measuring fixing piece. The measurement swinging piece is provided with an indicating end and a mounting end, and a connecting part is arranged between the indicating end and the mounting end. The connecting part is rotationally connected with the measuring fixing part, and the indicating end is used for indicating scales. The measuring oscillating piece oscillates to form an oscillating surface. And one end of the measuring rod is fixed at the mounting end, and the other end of the measuring rod is used for contacting the object to be measured. The measuring rod is perpendicular to the measuring oscillating piece. Through measuring the setting of mounting, scale plate, measuring swing spare and measuring the stick, replace the percentage table under the abominable environment of high temperature, realize the alignment to vertical centrifuge mould. The alignment tool comprises a measuring fixing part, a scale plate, a measuring swinging part and a measuring rod, and has the advantages of simple structure, convenience in operation and higher reliability.

Description

Alignment frock

Technical Field

The utility model belongs to the technical field of vertical centrifuge mould alignment technique and specifically relates to an alignment frock is related to.

Background

Because the vertical centrifuge die is easy to deform, lack meat, crack and other defects after being poured for many times, the vertical centrifuge die needs to be aligned. At present, the alignment of a vertical centrifuge die is generally measured by a dial indicator. However, in actual production, the ambient temperature of the vertical centrifuge die during use can reach about 100 ℃. If the dial indicator is still used for measurement in a high-temperature environment, the dial indicator is a precise instrument and is extremely easy to damage in the high-temperature environment, so that the production cost is increased. Therefore, it is necessary to design a device capable of aligning the vertical centrifuge mold in a high temperature environment of about 100 ℃.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an alignment frock, it can realize the alignment to vertical centrifuge mould under high temperature environment.

In order to achieve the above object, the utility model provides a following technical scheme:

an alignment frock mainly can include: the measuring device comprises a measuring fixing piece, a scale plate, a measuring swinging piece and a measuring rod.

The measuring fixing piece has supporting and fixing functions.

The scale plate is provided with scales and is fixed on the measuring fixing piece.

The measurement swinging piece is provided with an indicating end and a mounting end, and a connecting part is arranged between the indicating end and the mounting end. The connecting part is rotationally connected with the measuring fixing part, and the indicating end is used for indicating scales. The measuring oscillating piece oscillates to form an oscillating surface.

And one end of the measuring rod is fixed at the mounting end, and the other end of the measuring rod is used for contacting the object to be measured. The measuring rod is perpendicular to the measuring oscillating piece.

What is different from prior art, the utility model discloses a measure mounting, scale plate, measure the setting of swing piece and measurement stick, replace the percentage table under the abominable environment of high temperature, realize the alignment to vertical centrifuge mould. Including measuring mounting, scale plate, measuring the alignment frock of swing spare and measurement stick, relatively accurate percentage table has simple structure, convenient operation and the higher advantage of reliability, and the alignment frock can use under the higher environment of temperature.

In some embodiments of the invention, the end of the measuring rod remote from the measuring oscillating member is tapered.

The end of the measuring rod far away from the measuring swing piece is conical so as to reduce the contact area between the measuring rod and the object to be measured, reduce the friction force between the measuring rod and the object to be measured, and avoid the friction force causing the swinging of the measuring rod, thereby influencing the measuring accuracy.

The utility model discloses an in some embodiments, above-mentioned middle part of measuring the mounting is seted up flutedly, and the recess internal fixation has the pivot, and connecting portion rotate continuously through the pivot with the measurement mounting. And springs are arranged on two sides of the measurement swinging piece, and two ends of each spring are respectively fixed on the measurement fixing piece and the measurement swinging piece.

The arrangement of the spring can ensure that the measuring swing piece is restored to the initial state under the action of the elastic force after the position of the measuring swing piece is changed; in the measuring process, the spring is stretched due to the position change of the measuring swinging piece, and the spring has acting force for keeping the measuring swinging piece to be restored to a natural state after being stretched, so that the measuring head is ensured to be always in contact with an object to be measured, and the accuracy of indicating scales of the indicating end is improved.

In some embodiments of the present invention, the two springs are symmetrically disposed on both sides of the measurement swing member.

Two springs are symmetrically arranged on two sides of the measurement swinging piece, so that the measurement swinging piece is kept vertical under the action of the two springs in a natural state, the indicating end can indicate the middle position of the scale plate at the moment, and the accuracy of indicating the scale by the indicating end 151 is further ensured.

In some embodiments of the present invention, the end of the measurement fixing member away from the measurement swinging member is provided with a first supporting member for supporting the measurement fixing member. The first supporting piece is perpendicular to the measuring fixing piece and parallel to the swinging surface.

By fixing the first supporting piece to the designated position and enabling the first supporting piece to be vertical to the ground, the measuring rod can be enabled to vertically contact the object to be measured, and the object to be measured is aligned.

In some embodiments of the present invention, the alignment fixture further includes a fixing seat. The fixing seat comprises a first fastening screw, a mounting plate and a sliding part. A plurality of mounting holes are formed in the mounting plate. The sliding part is fixed on the mounting plate and sleeved on the first supporting piece. The first fastening screw is in threaded connection with one side of the sliding part.

The setting of first fastening screw, mounting panel and sliding part is conveniently fixed the alignment frock to the assigned position through the mounting panel, can adjust the terrain clearance of first support piece through first fastening screw to adapt to the not object that awaits measuring of co-altitude.

In some embodiments of the present invention, a second supporting member is fixed to one end of the first supporting member, and the second supporting member is slidably connected to the measuring fixing member.

The second supporting piece is connected with the measuring fixing piece in a sliding mode, so that the distance between the measuring rod and the first supporting piece is adjustable, and the alignment tool can be suitable for objects to be measured with different sizes.

In some embodiments of the present invention, the second supporting member is slidably connected to a slider, the slider is fixed with a connecting member, and one end of the connecting member away from the slider is fixed on the measuring and fixing member.

In some embodiments of the present invention, the one end of the measuring fixing member close to the connecting member is provided with a notch. The breach has mutually perpendicular's first face and second face, and the connecting piece is fixed in the breach, first face and second face all with the connecting piece butt to make the connecting piece be on a parallel with and measure the mounting.

In some embodiments of the present invention, the connecting member is screwed with a second fastening screw, and the second supporting member is provided with a screw hole matching with the second fastening screw.

The setting of second fastening screw rod makes things convenient for after the position of adjusting the slider, and the fixed distance of measuring between stick and the first support piece to guarantee the accuracy that detects.

The embodiment of the utility model provides an at least, have following advantage or beneficial effect:

1. through measuring mounting, scale plate, measuring swing spare and measuring the setting of stick, replace the percentage table under the environment of high temperature, realize the alignment to vertical centrifuge mould. Including measuring mounting, scale plate, measuring the alignment frock of swing spare and measurement stick, relatively accurate percentage table has simple structure, convenient operation and the higher advantage of reliability, and the alignment frock can use under the higher environment of temperature.

2. Fastening screw, mounting panel and sliding part's setting, conveniently fix the alignment frock to the assigned position through the mounting panel, can adjust the terrain clearance of first support piece through fastening screw to the object that awaits measuring of adaptation co-altitude.

3. The second supporting piece is connected with the measuring fixing piece in a sliding mode, so that the distance between the measuring rod and the first supporting piece is adjustable, and the alignment tool can be suitable for objects to be measured with different sizes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an alignment fixture provided in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of an alignment fixture provided in embodiment 2 of the present invention;

fig. 3 is a schematic structural view along direction a of fig. 2.

Icon: 100-aligning the tooling; 110-measuring fixture; 111-grooves; 113-a rotating shaft; 115-a spring; 130-a scale plate; 150-measuring the pendulums; 151-indicating end; 153-a mounting end; 155-a connecting part; 170-measuring the stick; 300-aligning the tooling; 310-measuring a fixture; 311-a groove; 313-a rotating shaft; 315-a spring; 317-a first support; 319-second support; 321-a slide block; 322-screw hole; 323-connecting member; 324-a second fastening screw; 325-notch; 327-first side; 329-a second face; 330-scale plate; 350-measuring pendulums; 351-indicating end; 353-a mounting end; 355-a linker; 370-measuring stick; 390-a fixed seat; 391-a first fastening screw; 393-a mounting plate; 395-a slide; 397-mounting holes.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the embodiments of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "inner", and the like refer to the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of the description of the embodiments of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features through another feature not in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1, fig. 1 is a schematic structural view of an alignment fixture 100. The embodiment provides an alignment tool 100, which mainly includes: a measurement fixing member 110, a scale plate 130, a measurement swinging member 150, and a measurement bar 170.

The measuring fixture 110 has supporting and fixing functions.

The scale plate 130 has a scale (not shown), and the scale plate 130 is fixed to the measurement fixing member 110.

More specifically, the scale plate 130 has an arc shape.

The measurement swing member 150 has an indicating end 151 and a mounting end 153, and a connecting portion 155 is provided between the indicating end 151 and the mounting end 153. The connecting portion 155 is rotatably connected to the measuring fixture 110, and the indicating end 151 is used for indicating a scale. The measurement swing member 150 swings to form a swing plane.

And one end of the measuring rod 170 is fixed at the mounting end 153, and the other end is used for contacting the object to be measured. The measuring bar 170 is perpendicular to the measuring pendulum 150.

For a precise dial indicator, the structure of the alignment tool 100 is not easily damaged due to the high temperature of about 100 ℃, and the alignment tool 100 can be normally used in a high-temperature environment. More specifically, in order to ensure that the alignment fixture 100 can adapt to a high-temperature environment, the measurement fixing member 110, the scale plate 130, the measurement swinging member 150, and the measurement rod 170 may all be made of temperature-resistant materials such as 45 steel.

In particular, the end of the measuring rod 170 remote from the measuring pendulum 150 is tapered. The end of the measuring rod 170 away from the measuring swing member 150 is tapered to reduce the contact area between the measuring rod 170 and the object to be measured, reduce the friction force between the measuring rod 170 and the object to be measured, and prevent the measuring rod 170 from swinging due to the friction force, thereby affecting the measuring accuracy.

Specifically, a groove 111 is formed in the middle of the measurement fixing member 110, a rotating shaft 113 is fixed in the groove 111, and the connecting portion 155 is rotatably connected to the measurement fixing member 110 through the rotating shaft 113. Both sides of the measurement swing member 150 are provided with springs 115, and both ends of the springs 115 are fixed to the measurement fixing member 110 and the measurement swing member 150, respectively. The spring 115 is arranged to ensure that the measurement swing member 150 returns to the initial state (the natural state shown in fig. 1) under the action of the elastic force after the position is changed; during the measurement, the spring 115 is stretched due to the change of the position of the measurement swing member 150, and the spring 115 has a force for keeping the measurement swing member 150 in a natural state after stretching, so as to ensure that the measurement head always contacts with the object to be measured, thereby improving the accuracy of the indication scale of the indication end 151.

Specifically, two springs 115 are symmetrically disposed on both sides of the measurement swing 150. The two springs 115 are symmetrically arranged on two sides of the measurement swing member 150, so that the measurement swing member 150 is kept vertical under the action of the two springs 115 in a natural state (a state shown in fig. 1), and at the moment, the indicating end 151 can indicate the middle position of the scale plate 130, thereby ensuring the accuracy of indicating the scale by the indicating end 151.

The working principle of the alignment tool 100 is as follows:

when the alignment fixture 100 is used, the measurement fixing member 110 is fixed at a designated position, the measurement bar 170 is brought into contact with the object, and the eccentric direction and amplitude of the object are detected through the scale indicated by the indicating end 151. Through the arrangement of the measuring fixing part 110, the scale plate 130, the measuring swinging part 150 and the measuring rod 170, the die of the vertical centrifuge is aligned under the high-temperature environment instead of a dial indicator. The alignment tool 100 comprises a measuring fixing part 110, a scale plate 130, a measuring swinging part 150 and a measuring rod 170, has the advantages of simple structure, convenience in operation and high reliability in comparison with a precise dial indicator, and can be used in an environment with high temperature in the alignment tool 100.

Example 2

Referring to fig. 2 to 3, fig. 2 is a schematic structural view of an alignment fixture 300, and fig. 3 is a schematic structural view along direction a of fig. 2. The embodiment provides an alignment tool 300, which mainly comprises: a measurement fixture 310, a scale plate 330, a measurement swing 350 and a measurement stick 370.

The measuring fixture 310 has supporting and fixing functions.

The scale plate 330 has a scale (not shown), and the scale plate 330 is fixed to the measurement fixing member 310.

The measurement swing member 350 has an indicating end 351 and a mounting end 353, and a connecting portion 355 is provided between the indicating end 351 and the mounting end 353. The connecting portion 355 is rotatably connected to the measuring fixture 310, and the indicating end 351 is used for indicating a scale. The measuring oscillating piece 350 oscillates to form an oscillating plane.

And one end of the measuring rod 370 is fixed at the mounting end 353, and the other end is used for contacting the object to be measured. The measuring rod 370 is perpendicular to the measuring pendulum 350.

For a precise dial indicator, the structure of the alignment tool 300 is not easily damaged at a high temperature of about 100 ℃, and the alignment tool 300 can be normally used in a high-temperature environment. More specifically, in order to ensure that the alignment fixture 300 can adapt to a high-temperature environment, the measurement fixing member 310, the scale plate 330, the measurement swinging member 350, and the measurement rod 370 may all be made of temperature-resistant materials such as 45 steel.

In particular, the end of the measuring rod 370 remote from the measuring pendulum 350 is tapered. The end of the measuring rod 370 away from the measuring swing member 350 is tapered to reduce the contact area between the measuring rod 370 and the object to be measured, reduce the friction force between the two, and prevent the measuring rod 370 from swinging due to the friction force, thereby affecting the measuring accuracy.

Specifically, a groove 311 is formed in the middle of the measurement fixing member 310, a rotating shaft 313 is fixed in the groove 311, and the connecting portion 355 is rotatably connected to the measurement fixing member 310 through the rotating shaft 313. Both sides of the measurement swing member 350 are provided with springs 315, and both ends of the springs 315 are fixed to the measurement fixing member 310 and the measurement swing member 350, respectively. The spring 315 is arranged to ensure that the measuring oscillating piece 350 returns to its original state (the natural state shown in fig. 2) under the action of the elastic force after the position change; during the measurement process, the spring 315 is stretched due to the position change of the measurement swinging member 350, and the spring 315 has an acting force for keeping the measurement swinging member 350 in a natural state after stretching, so as to ensure that the measurement head always contacts with the object to be measured, and improve the accuracy of the indication scale of the indication end 351.

Specifically, two springs 315 are symmetrically disposed on both sides of the measurement swing 350. The two springs 315 are symmetrically disposed on two sides of the measurement swing member 350, so that the measurement swing member 350 is kept vertical under the action of the two springs 315 in a natural state (a state shown in fig. 2), and the indicating end 351 can indicate the middle position of the scale plate 330, thereby ensuring the accuracy of indicating the scale by the indicating end 151.

Specifically, the end of the measurement fixing member 310 remote from the measurement swinging member 350 may be further provided with a first support 317 for supporting the measurement fixing member 310. The first support 317 is perpendicular to the measurement fixing member 310 and parallel to the swing plane. By fixing the first supporting member 317 to a predetermined position and making it perpendicular to the ground, the measuring bar 370 can vertically contact the object to be measured, thereby aligning the object to be measured.

Specifically, the alignment fixture 300 may further include a fixing seat 390. The fixing base 390 includes a first fastening screw 391, a mounting plate 393, and a slider 395. The mounting plate 393 has a plurality of mounting holes 397. The sliding portion 395 is fixed to the mounting plate 393 and fits over the first support 317. The first fastening screw 391 is screw-coupled to one side of the sliding portion 395. The arrangement of the first fastening screw 391, the mounting plate 393 and the sliding portion 395 facilitates fixing the alignment fixture 300 to a designated position through the mounting hole 397 on the mounting plate 393, and after the ground clearance of the first support member 317 is adjusted, the first fastening screw 391 is screwed to fix the first support member 317 so as to adapt to objects to be measured with different heights.

More specifically, the first fastening screw 391 penetrates through the side surface of the sliding portion 395 and can be abutted against the first supporting member 317, and the friction between the first fastening screw 391 and the first supporting member 317 can be increased by tightening the first fastening screw 391, so as to achieve the purpose of fixing the first supporting member 317.

Specifically, a second supporting member 319 is fixed to one end of the first supporting member 317, and the second supporting member 319 is slidably connected to the measurement fixing member 310. The second supporting member 319 is slidably connected to the measuring fixing member 310, so that the distance between the measuring rod 370 and the first supporting member 317 is adjustable, and the alignment fixture 300 can be applied to objects to be measured with different sizes.

Specifically, a sliding block 321 is slidably connected to the second supporting member 319, a connecting member 323 is fixed to the sliding block 321, and an end of the connecting member 323 away from the sliding block 321 is fixed to the measurement fixing member 310.

More specifically, as shown in fig. 2, both sides of the second supporting member 319 are grooved along the length direction thereof, and the sliding blocks 321 are matched with the second supporting member 319, so that the sliding blocks 321 can only slide along the length direction of the second supporting member 319, and the sliding blocks 321 are prevented from falling off the second supporting member 319 when sliding.

Specifically, a notch 325 is formed at one end of the measurement fixing member 310 close to the connecting member 323. The notch 325 has a first face 327 and a second face 329 perpendicular to each other, the connecting member 323 is fixed in the notch 325, and both the first face 327 and the second face 329 abut against the connecting member 323 so that the connecting member 323 is parallel to the measurement fixing member 310.

Specifically, the connecting member 323 is threadedly connected with a second fastening screw 324, and the second supporting member 319 is provided with a screw hole 322 matching with the second fastening screw 324. The second fastening screw 324 is provided to fix the distance between the measuring rod 370 and the first supporting member 317 after adjusting the position of the sliding block 321, so as to ensure the accuracy of the detection.

More specifically, after the sliding block 321 is moved to a designated position on the second supporting member 319, the second fastening screws 324 are tightened, and the second fastening screws 324 are inserted into the corresponding screw holes 322 to fix the sliding block 321, and thus the distance between the measuring bar 370 and the first supporting member 317.

The working principle of the alignment tool 300 is as follows:

when the alignment fixture 300 is used, the fixing seat 390 is fixed at a designated position, the first fastening screw 391 is loosened, and the height of the first supporting member 317 above the ground is adjusted to adapt to objects to be measured with different heights. After the position of the sliding block 321 is adjusted, the second fastening screw 324 is screwed, and the distance between the measuring bar 370 and the first supporting member 317 is fixed, so as to adapt to objects to be measured with different sizes. The measuring stick 370 can contact the object to be measured, and detect the eccentric direction and amplitude of the object to be measured through the scale indicated by the indicating end 351. Through the arrangement of the measuring fixing part 310, the scale plate 330, the measuring swinging part 350 and the measuring rod 370, the alignment of the vertical centrifuge die is realized under the high-temperature environment instead of a dial indicator. The alignment tool 300 comprising the measuring fixing part 310, the scale plate 330, the measuring swinging part 350 and the measuring rod 370 has the advantages of simple structure, convenience in operation and high reliability in comparison with a precise dial indicator, and the alignment tool 300 can be used in an environment with high temperature.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an alignment frock, its characterized in that includes:

measuring the fixed part;

the scale plate is provided with scales and is fixed on the measuring fixing piece;

the measurement swinging piece is provided with an indicating end and a mounting end, and a connecting part is arranged between the indicating end and the mounting end; the connecting part is rotationally connected with the measuring fixing part, and the indicating end is used for indicating the scales; the measurement swinging piece swings to form a swinging surface;

one end of the measuring rod is fixed at the mounting end, and the other end of the measuring rod is used for contacting an object to be measured; the measuring bar is perpendicular to the measuring oscillating piece.

2. The alignment fixture of claim 1 wherein an end of the measurement rod distal from the measurement pendulum is tapered.

3. The alignment tool as claimed in claim 1, wherein a groove is formed in the middle of the measurement fixing member, a rotating shaft is fixed in the groove, and the connecting portion is rotatably connected with the measurement fixing member through the rotating shaft; the two sides of the measurement swinging piece are provided with springs, and two ends of each spring are fixed on the measurement fixing piece and the measurement swinging piece respectively.

4. The alignment fixture of claim 3, wherein the two springs are symmetrically disposed on opposite sides of the measurement pendulum.

5. The alignment tool as claimed in any one of claims 1 to 4, wherein a first supporting member for supporting the measurement fixing member is disposed at one end of the measurement fixing member away from the measurement swinging member; the first supporting piece is perpendicular to the measuring fixing piece and parallel to the swinging surface.

6. The alignment tool of claim 5, further comprising a fixing seat; the fixed seat comprises a first fastening screw, a mounting plate and a sliding part; the mounting plate is provided with a plurality of mounting holes; the sliding part is fixed on the mounting plate and sleeved on the first supporting piece; the first fastening screw is in threaded connection with one side of the sliding part.

7. The alignment tool as claimed in claim 5, wherein a second supporting member is fixed to one end of the first supporting member, and the second supporting member is slidably connected to the measurement fixing member.

8. The alignment tool according to claim 7, wherein a sliding block is slidably connected to the second support member, a connecting member is fixed to the sliding block, and one end of the connecting member, which is far away from the sliding block, is fixed to the measurement fixing member.

9. The alignment tool as claimed in claim 8, wherein a notch is formed at one end of the measurement fixing member close to the connecting member; the notch is provided with a first surface and a second surface which are perpendicular to each other, the connecting piece is fixed in the notch, and the first surface and the second surface are both abutted against the connecting piece so that the connecting piece is parallel to the measuring fixing piece.

10. The alignment tool according to claim 8, wherein the connecting member is threadedly connected with a second fastening screw, and the second support member is provided with a screw hole matched with the second fastening screw.