CN218329729U

CN218329729U - Parallelism detection device

Info

Publication number: CN218329729U
Application number: CN202222026110.8U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-01-17
Anticipated expiration: 2032-08-02

Abstract

The utility model relates to a depth of parallelism detection device is when carrying out the depth of parallelism detection, regards first axle class work piece as the benchmark to go into first axle class work piece and second axle class work piece card respectively and hold portion of holding and measuring department. Then, the connecting piece is moved along the axial direction of the first shaft workpiece, and the first measuring point and the second measuring point are always kept in contact with the second shaft workpiece. If the second shaft workpiece deviates in the first plane relative to the first shaft workpiece, the distance between the second shaft workpiece and the first shaft workpiece changes along the axial direction and can be measured by a distance meter; if the second shaft workpiece deviates in a second plane relative to the first shaft workpiece, the connecting piece rotates along the circumferential direction of the first shaft workpiece, so that the level gauge is driven to rotate to measure the deviation angle. Therefore, the parallelism detection device can detect the parallelism between the first shaft type workpiece and the second shaft type workpiece from two dimensions at the same time, so that the detection precision is higher.

Description

Parallelism detection device

Technical Field

The utility model relates to a detect instrument technical field, in particular to depth of parallelism detection device.

Background

In the production process, in order to ensure the machining precision, the parallelism between the shaft workpieces is generally required to be detected so as to be adjusted correspondingly, so that the high parallelism between the shaft workpieces is maintained. For example, in a die cutting machine or other equipment, in order to ensure the precision of the film material in the conveying process, the rollers are required to have high parallelism, so the parallelism between the rollers needs to be detected.

One common detection mode is that the distance between two rollers is measured through a dial indicator, and then the parallelism between the rollers is measured by matching the levelness of each roller; the other method is to adjust the planeness of the large plate before the equipment is assembled and then detect the verticality of the roller relative to the large plate. However, the above two methods are both perceived to have high uncertainty and single detection dimension, which results in low measurement accuracy.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a parallelism detecting apparatus having high detection accuracy.

A parallelism detecting apparatus, comprising:

the connecting piece is provided with clamping parts and measuring parts which are arranged at intervals, the first shaft type workpiece can be clamped into the clamping parts and is positioned by the clamping parts in the radial direction, and the second shaft type workpiece can be clamped into the measuring parts and is abutted with a first measuring point and a second measuring point in the measuring parts;

the level gauge is arranged on the connecting piece and can rotate along with the connecting piece; and

the distance measuring instrument is provided with a measuring end which can stretch out and draw back along a first direction, and the measuring end stretches into the measuring part to form a first measuring point;

the first measuring point abuts against the second shaft workpiece along the first direction to measure the distance between the first shaft workpiece and the second shaft workpiece, and the second measuring point abuts against the second shaft workpiece along a second direction perpendicular to the first direction.

In one embodiment, one end of the connecting piece is provided with a clamping block, the clamping block comprises two side plates which are perpendicular to each other, and the clamping part is formed between the two side plates.

In one embodiment, the distance between the catch and the measuring portion in the first direction is adjustable.

In one embodiment, a backup plate is arranged on the connecting piece, the distance measuring instrument is mounted on the backup plate, the second measuring point is arranged on the surface of the backup plate, and the backup plate can be switched in position along the first direction to adjust the distance between the clamping part and the measuring part.

In one embodiment, a mounting block extending perpendicularly relative to the surface of the backup plate is fixedly arranged on the backup plate, and the distance measuring device is mounted on the backup plate through the mounting block.

In one embodiment, the connecting member is plate-shaped, and the connecting member is sequentially provided with two grooves along the first direction to form the clamping part and the measuring part respectively.

In one embodiment, the openings of the holding portion and the measuring portion are located on the same side of the connecting member.

In one embodiment, the openings of the holding part and the measuring part are respectively positioned at two opposite sides of the connecting part.

In one embodiment, the level is rotatably mounted to the link to enable the level to be adjusted to an initial level.

In one embodiment, the distance meter is a dial indicator or a dial indicator.

Compared with the prior art, the parallelism detection device at least comprises the following beneficial effects:

for convenience of description, the first plane and the second plane are defined first. The first plane refers to a plane where central axes of the first shaft type workpiece and the second shaft type workpiece are located when the first shaft type workpiece and the second shaft type workpiece are in an ideal parallel state; the second plane is a plane perpendicular to the first plane and perpendicular to the central axis of the first axial workpiece.

When detecting the parallelism, the first shaft workpiece is taken as a reference, and the first shaft workpiece and the second shaft workpiece are respectively clamped into the clamping part and the measuring part. And then, the connecting piece moves along the axial direction of the first shaft type workpiece, and the first measuring point and the second measuring point are always kept in contact with the second shaft type workpiece. If the second shaft workpiece deviates in the first plane relative to the first shaft workpiece, the distance between the second shaft workpiece and the first shaft workpiece changes along the axial direction and can be measured by the distance measuring instrument; and if the second shaft workpiece deviates in a second plane relative to the first shaft workpiece, the connecting piece also rotates along the circumferential direction of the first shaft workpiece, so that the level gauge is driven to rotate to measure the deviation angle. Therefore, the parallelism detection device can detect the parallelism between the first shaft type workpiece and the second shaft type workpiece from two dimensions at the same time, so that the detection precision is higher.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a parallelism detecting apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of an application scenario of the parallelism detection apparatus shown in FIG. 1;

FIG. 3 is a front view of FIG. 2;

fig. 4 is a schematic structural view of a parallelism detecting apparatus according to another embodiment of the present invention;

FIG. 5 is a schematic view of an application scenario of the parallelism detection apparatus shown in FIG. 4;

FIG. 6 is a schematic view of a first axial workpiece and a second axial workpiece in an ideal parallel state;

FIG. 7 is a schematic diagram of a projection of a first axis-like workpiece and a second axis-like workpiece onto a first plane in one embodiment;

FIG. 8 is a schematic diagram illustrating a projection of a first axial workpiece and a second axial workpiece onto a second plane, according to one embodiment.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 8, the present invention provides a parallelism detecting apparatus 100, wherein the parallelism detecting apparatus 100 is used for detecting the parallelism between a first shaft workpiece 200 and a second shaft workpiece 300. Specifically, the first shaft workpiece 200 and the second shaft workpiece 300 may be shaft parts having high requirements for parallelism, such as a motor shaft, a roller, and a conveying roller.

When detecting the parallelism, it is necessary to detect whether or not the second axis-based workpiece 300 is parallel to the first axis-based workpiece 200 with reference to the first axis-based workpiece 200. For convenience of description, two reference planes, i.e., a first plane a and a second plane b, are defined.

As shown in fig. 6, the first plane a refers to a plane where the central axes of the first axis-based workpiece 200 and the second axis-based workpiece 300 are located when the first axis-based workpiece 200 and the second axis-based workpiece 300 are in an ideal parallel state; and the second plane b refers to a plane perpendicular to the first plane a and to the central axis of the first axial workpiece 200. Since the central axes of the first axial workpiece 200 and the second axial workpiece 300 in fig. 6 extend in a direction perpendicular to the plane of the drawing, the first plane a and the second plane b each indicate only one edge.

The offset of the second axial workpiece 300 relative to the first axial workpiece 200 can be decomposed into an offset in two dimensions, namely a "distance offset" in the first plane a and an "angle offset" in the second plane b. When the second axis-based workpiece 300 is "offset" with respect to the first axis-based workpiece 200, the projections of the second axis-based workpiece 300 and the first axis-based workpiece 200 on the first plane a are in a non-parallel state as shown in fig. 7, and the extension lines of the two intersect. When the second axis-type workpiece 300 is "angularly offset" with respect to the first axis-type workpiece 200, the projections of the second axis-type workpiece 300 and the first axis-type workpiece 200 on the second plane b are in an oblique state as shown in fig. 8.

The conventional parallelism detection method usually measures only the distance between the second axis-type workpiece 300 and the first axis-type workpiece 200. When the second axis workpiece 300 only has "distance offset" with respect to the first axis workpiece 200, the conventional detection method can also accurately detect the distance offset. However, when the second axis-based workpiece 300 still has an "angular offset" with respect to the first axis-based workpiece 200, the conventional detection method cannot detect the angular offset, and thus the accuracy of the parallelism detection is not high. The parallelism detecting apparatus 100 of the present invention can detect the distance offset of the second shaft workpiece 300 relative to the first shaft workpiece 200, and can also detect the angle offset.

Referring to fig. 1 to 3 again, the parallelism detecting apparatus 100 according to an embodiment of the present invention includes a connecting member 110, a level gauge 120, and a distance meter 130.

The connecting member 110 may be rod-shaped or plate-shaped, and is generally formed of metal and is not easily deformed. The connecting member 110 has a chucking part 101 and a measuring part 102 which are arranged at an interval, and the first shaft-like workpiece 200 and the second shaft-like workpiece 300 can be respectively chucked in the chucking part 101 and the measuring part 102. When the first shaft-like workpiece 200 is caught by the catch 101, it can be positioned in the radial direction by the catch 101. Moreover, the retainer 101 does not form a limit with the first shaft-like workpiece 200 in the axial direction and the circumferential direction of the first shaft-like workpiece 200, so that the retainer 101 can slide in the axial direction of the first shaft-like workpiece 200 and rotate in the circumferential direction.

The measuring unit 102 is provided with a first measuring point (not shown) and a second measuring point (not shown). When the second shaft-type workpiece 300 is clamped into the measuring part 102, the first measuring point can abut against the surface of the second shaft-type workpiece 300 along a first direction, and the second measuring point can abut against the surface of the second shaft-type workpiece 300 along a second direction perpendicular to the first direction. Alternatively, an extension of the first measuring point in the first direction passes through the axis of the second shaft-like workpiece 300. The first direction is substantially the up-down direction and the second direction is substantially the left-right direction (see fig. 3) for the first shaft-like workpiece 200 and the second shaft-like workpiece 300 arranged up and down, and the first direction is substantially the left-right direction and the second direction is substantially the up-down direction (see fig. 5) for the first shaft-like workpiece 200 and the second shaft-like workpiece 300 arranged horizontally.

In addition, the specific configuration of the connecting member 110 can be adaptively adjusted according to the arrangement of the first shaft-like workpiece 200 and the second shaft-like workpiece 300.

Specifically, in the present embodiment, the openings of the clamping portion 101 and the measuring portion 102 are respectively located at two opposite sides of the connecting member 110. At this time, the levelness detecting device 100 is more suitable for detecting the parallelism of the first shaft-like workpiece 200 and the second shaft-like workpiece 300 arranged up and down, and the first shaft-like workpiece 200 and the second shaft-like workpiece 300 can be respectively clamped with the connecting member 110 from two opposite sides, thereby being helpful for keeping the relative positions of the levelness detecting device 100 and the first shaft-like workpiece 200 and the second shaft-like workpiece 300 stable.

In another embodiment, as shown in fig. 5, the openings of the chucking part 101 and the measuring part 102 are located on the same side of the connecting part 110. In this case, the levelness detection apparatus 100 is more suitable for detecting the parallelism of the first shaft-like workpiece 200 and the second shaft-like workpiece 300 which are horizontally arranged.

The level 120 is disposed on the connecting member 110 and can rotate with the connecting member 110. The distance meter 130 has a measuring end 131 extending into the measuring section 102, and the measuring end 131 can extend and contract in the first direction. Specifically, in this embodiment, the distance meter 130 is a dial indicator or a dial indicator. The dial indicator and the dial indicator have simple structures, high accuracy and lower cost. Of course, the rangefinder 130 may also employ electronic rangefinder elements.

The measuring end 131 of the distance meter 130 constitutes a first measuring point of the measuring section 102. Furthermore, the first measuring point, i.e. the measuring end 131, is abutted against the second shaft workpiece 300 along the first direction to measure the distance between the first shaft workpiece 200 and the second shaft workpiece 300. When detecting the parallelism between the first shaft-like workpiece 200 and the second shaft-like workpiece 200, the joint 110 slides in the axial direction of the first shaft-like workpiece 200 as a reference. At this time, it can be determined whether the parallelism between the first axis workpiece 200 and the second axis workpiece 200 is within the allowable error range through the readings of the level gauge 120 and the distance gauge 130.

The operation of the parallelism detection apparatus 100 will be briefly described with reference to the accompanying drawings:

after the first shaft workpiece 200 and the second shaft workpiece 300 are respectively clamped into the clamping part 101 and the measuring part 102, the connecting piece 110 is driven to slide along the axial direction of the first shaft workpiece 200; the first measuring point, i.e. the measuring end 131, will also move along the extending direction of the second shaft workpiece 200; if the distance between the first axis-type workpiece 200 and the second axis-type workpiece 300 is d, measured by the distance meter 130 when the first measuring point is at the initial position ₁ And the distance measured by the distance meter 130 when the first measuring point moves to the other end is d ₂ Then, the parallelism of the first shaft-like workpiece 200 and the second shaft-like workpiece 300 in the first plane a is recorded as (d) ₁ -d ₂ ) H is the length of the first shaft-like workpiece 200 or the second shaft-like workpiece 300. When (d) ₁ -d ₂ ) If the value of/h is smaller than the preset value, it indicates that the parallelism of the first shaft workpiece 200 and the second shaft workpiece 200 in the first plane a is within the allowable error range.

At the same time, the second measuring point will also slide on the surface of the second axial workpiece 300 along the extension direction of the second axial workpiece 300. If the second shaft-like workpiece 300 is "angularly offset" with respect to the first shaft-like workpiece 200, the second measuring point needs to rotate the connecting member 110 in the circumferential direction of the first shaft-like workpiece 200 during sliding, so that the second measuring point can be kept in contact with the second shaft-like workpiece 300. When the second measuring point slides from the initial position to the other end, the connecting member 110 will drive the level gauge 120 to deflect by a certain angle, and the parallelism of the second axis-type workpiece 300 relative to the first axis-type workpiece 200 in the second plane b can be converted by the angle deflected by the level gauge 120. Generally, when the deflection angle of the level gauge 120 is less than 1 °, it is considered that the parallelism of the first axis-type workpiece 200 and the second axis-type workpiece 300 in the second plane b is within the allowable error range, and the requirement is satisfied.

As can be seen from this, when the parallelism detecting apparatus 100 detects the parallelism, it is only necessary to move the link 110 in the axial direction of the first shaft-based workpiece 200 as a reference, and the parallelism of the second shaft-based workpiece 300 with respect to the first shaft-based workpiece 200 in the first plane a and the second plane b can be obtained at the same time. Therefore, the parallelism detecting apparatus 100 is not only easy to operate and highly efficient, but also can detect the parallelism between the first shaft-based workpiece 200 and the second shaft-based workpiece 300 from two dimensions, and therefore the detection accuracy is also high.

In the initial stage of levelness detection, the level 120 is adjusted to the initial level state to obtain the maximum detection accuracy. In the present embodiment, the level gauge 120 is rotatably mounted to the connecting member 110, so that the level gauge 120 can be adjusted to an initial level state. Therefore, no matter what orientation the link 110 is in at the initial stage of detection, the level 120 can be adjusted to the initial level state by rotating the level 120 relative to the link 110, thereby ensuring the detection accuracy.

Specifically, the level 120 is rotatably mounted to the support 140, and the support 140 is fixedly mounted to the connecting member 110. Of course, the level 120 may also be directly mounted to the connecting member 110 through a rotating shaft, or may be mounted to the connecting member 110 through a rotating connection structure such as a ball joint.

It should be noted that in other embodiments, the level 120 may be fixedly mounted to the connecting member 110, provided that an electronic level is used.

Referring to fig. 1 again, in the present embodiment, the distance between the holding portion 101 and the measuring portion 102 in the first direction is adjustable. Thus, in different application scenarios, the distance between the clamping part 101 and the measuring part 102 can be adjusted according to the distance between the first shaft-like workpiece 200 and the second shaft-like workpiece 300, so that the first shaft-like workpiece 200 and the second shaft-like workpiece 300 can be smoothly clamped into the clamping part 101 and the measuring part 102 in a plurality of application scenarios, thereby improving the applicability of the parallelism detection apparatus 100.

Further, in this embodiment, the connecting member 110 is provided with a backup plate 112, the distance meter 130 is installed on the backup plate 112, the second measuring point is provided on the surface of the backup plate 112, and the backup plate 112 can be switched in position along the first direction to adjust the distance between the clamping portion 101 and the measuring portion 102.

Specifically, the connecting member 110 is rod-shaped and extends along a first direction, and the backup plate 112 may be mounted to the connecting member 110 by way of a rail and a slider, and locked by a locking screw. The distance between the clamping part 101 and the measuring part 102 can be adjusted by sliding the backup plate 112 after the locking screw is loosened, and the operation is convenient. Moreover, the surface of the backup plate 112 is smooth, and has a larger contact area when contacting with the surface of the second shaft-like workpiece 300, so that the second measuring point can be kept in contact with the surface of the second shaft-like workpiece 300 all the time during the sliding process.

Specifically, in the present embodiment, a mounting block 113 extending perpendicularly to the surface of the backup plate 112 is fixedly disposed on the backup plate 112, and the distance meter 130 is mounted on the backup plate 112 through the mounting block 113.

In the embodiment, one end of the connecting member 110 is provided with a clamping block 111, and the clamping block 111 includes two side plates (not shown) perpendicular to each other, and a clamping portion 101 is formed between the two side plates.

Specifically, the holding block 111 is L-shaped, and the two side plates extend along the first direction and the second direction respectively. The opening of the retaining part 101 formed by the L-shaped retaining block 111 is large, so that the first shaft-like workpiece 200 can be conveniently clamped. Moreover, the two side plates can press against the first shaft-like workpiece 200 from two directions perpendicular to each other, thereby positioning the first shaft-like workpiece 200 in the radial direction.

It should be noted that in other embodiments, the catch 101 may be in other forms. For example, the retaining portion 101 may be a semicircular snap ring.

In addition, referring to fig. 4 again, in another embodiment, the connecting element 110 is plate-shaped, and the connecting element 110 is sequentially provided with two grooves along the first direction to form the retaining portion 101 and the measuring portion 102, respectively. It can be seen that the connecting member 110 is an integrally formed structure, so that the volume is smaller and the structure is simpler.

In the parallelism detection apparatus 100, the first shaft-like workpiece 200 is used as a reference, and the first shaft-like workpiece 200 and the second shaft-like workpiece 300 are respectively engaged with the chucking unit 101 and the measuring unit 102. Next, the link 110 is moved in the axial direction of the first shaft-like workpiece 200, and the first measurement point and the second measurement point are always kept in contact with the second shaft-like workpiece 300. If the second axial workpiece 300 is offset in the first plane a relative to the first axial workpiece 200, the distance between the second axial workpiece 300 and the first axial workpiece 200 will vary in the axial direction and can be measured by the distance meter 130; if the second shaft-like workpiece 300 is offset in the second plane b relative to the first shaft-like workpiece 200, the connecting member 110 will also rotate along the circumferential direction of the first shaft-like workpiece 200, so as to drive the level gauge 120 to rotate to measure the offset angle. As can be seen, the parallelism detection apparatus 100 can simultaneously detect the parallelism between the first shaft-based workpiece 200 and the second shaft-based workpiece 300 from two dimensions, and therefore the detection accuracy is higher.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A parallelism detection apparatus (100), comprising:

the connecting piece (110) is provided with clamping parts (101) and measuring parts (102) which are arranged at intervals, the first shaft workpiece (200) can be clamped into the clamping parts (101) and is positioned by the clamping parts (101) along the radial direction, and the second shaft workpiece (300) can be clamped into the measuring parts (102) and is abutted to a first measuring point and a second measuring point in the measuring parts (102);

the level gauge (120) is arranged on the connecting piece (110) and can rotate along with the connecting piece (110); and

a distance meter (130) having a measuring end (131) that is extendable and retractable in a first direction, the measuring end (131) extending into the measuring section (102) and forming the first measuring point;

the first measuring point is abutted against the second shaft workpiece (300) along the first direction to measure the distance between the first shaft workpiece (200) and the second shaft workpiece (300), and the second measuring point is abutted against the second shaft workpiece (300) along a second direction perpendicular to the first direction.

2. The parallelism detection apparatus (100) according to claim 1, wherein one end of the connecting member (110) is provided with a holding block (111), and the holding block (111) comprises two side plates perpendicular to each other, and the holding portion (101) is formed between the two side plates.

3. The parallelism detection apparatus (100) according to claim 1, wherein a distance between the catch (101) and the measuring portion (102) in the first direction is adjustable.

4. The parallelism detection apparatus (100) according to claim 3, wherein a backup plate (112) is disposed on the connecting member (110), the distance meter (130) is mounted on the backup plate (112), the second measurement point is disposed on a surface of the backup plate (112), and the backup plate (112) can be switched in position along the first direction to adjust a distance between the holding portion (101) and the measurement portion (102).

5. The parallelism detection apparatus (100) according to claim 4, wherein a mounting block (113) extending perpendicularly to a surface of the backup plate (112) is fixedly provided on the backup plate (112), and the distance meter (130) is mounted to the backup plate (112) via the mounting block (113).

6. The parallelism detection apparatus (100) according to claim 1, wherein the connecting member (110) is plate-shaped, and two grooves are sequentially formed on the connecting member (110) along the first direction to form the holding portion (101) and the measuring portion (102), respectively.

7. The parallelism detection apparatus (100) according to claim 1, wherein the openings of the catch (101) and the measuring portion (102) are located on the same side of the connecting member (110).

8. The parallelism detection apparatus (100) according to claim 1, wherein the openings of the holding portion (101) and the measuring portion (102) are located on opposite sides of the connecting member (110).

9. The parallelism detection apparatus (100) according to claim 1, wherein the level (120) is rotatably mounted to the link (110) so that the level (120) can be adjusted to an initial level state.

10. The parallelism detection apparatus (100) according to claim 1, wherein the distance meter (130) is a dial gauge or a dial gauge.