CN112894703A - Arc-shaped plate mounting tool and arc-shaped plate mounting method - Google Patents

Abstract

The disclosure relates to an arc plate mounting tool and an arc plate mounting method. The arc plate installation tool comprises: a first mounting seat having a guide groove and a first mating cylindrical surface (11); the second mounting seat is in guiding fit with the first mounting seat through the guide groove and is provided with a second fit cylindrical surface (31); the cam (40) is pivoted on the first mounting seat and is positioned on one side, adjacent to the first mounting seat, of the second mounting seat; and the operating part (50) is connected with the cam (40) and is configured to drive the cam (40) to rotate when the first matching cylindrical surface (11) and the second matching cylindrical surface (31) are respectively aligned with two opposite arc-shaped plates in the wire-drawing forming device, so that the first matching cylindrical surface (11) and the second matching cylindrical surface (31) are far away from or close to each other. The embodiment of the disclosure can realize higher installation precision and reduce the installation difficulty.

Description

Arc-shaped plate mounting tool and arc-shaped plate mounting method

Technical Field

The disclosure relates to the field of tobacco machinery assembly, in particular to an arc-shaped plate mounting tool and an arc-shaped plate mounting method.

Background

In the field of tobacco processing, a cut tobacco forming device can be used for conveying cut tobacco. Referring to the cut tobacco suction forming device shown in fig. 1, cut tobacco is conveyed to a cut tobacco conveying belt from the rear part, cut tobacco on the cut tobacco conveying belt is conveyed between a lower arc-shaped plate a2 and a throwing roller a1 after being subjected to primary cut stem separation, the throwing roller a1 rotating at a high speed drives a throwing nail a11 to convey the cut tobacco upwards at a high speed to a cut tobacco suction channel a3 of an air chamber body, and the cut tobacco is conveyed by air flow emitted by an air chamber a 2. The gap between the throwing nail a11 of the throwing roller a1 and the lower arc-shaped plate a2 needs to be kept at 0.06mm, and the left end and the right end of the lower arc-shaped plate a2 need to be flush with the base.

The lower arc-shaped plate a2 is made of a stainless steel plate and has a thickness of only about 1 mm. Because the cut tobacco contacts with the lower arc-shaped plate a2, the throwing roller a1 rotating at high speed drives the cut tobacco and the lower arc-shaped plate a2 to move continuously and relatively, so that the lower arc-shaped plate a2 is worn and fails after being used for a period of time. In order to replace the lower arc-shaped plate a2, in the related art, in order to ensure that the lower arc-shaped plate a2 is installed in place, certain pressure needs to be applied to the arc-shaped plate, and due to the fact that no special tool is provided, local stress of the arc-shaped plate is too large and deformation is easily caused in the pressure application process, and therefore installation accuracy is affected. The installation process needs someone cooperation, and one person exerts pressure to the arc board, makes it be in correct position, and the locking screw is come by another person. This makes the installation degree of difficulty great, and the installation precision is lower.

Disclosure of Invention

In view of this, the embodiment of the present disclosure provides an arc plate installation tool and an arc plate installation method, which can achieve higher installation accuracy and reduce installation difficulty.

In one aspect of the present disclosure, there is provided an arc plate installation tool, including:

the first mounting seat is provided with a guide groove and a first matching cylindrical surface;

the second mounting seat is in guiding fit with the first mounting seat through the guide groove and is provided with a second fit cylindrical surface;

the cam is pivoted on the first mounting seat and is positioned on one side, adjacent to the first mounting seat, of the second mounting seat; and

the operating part is connected with the cam and is configured to drive the cam to rotate when the first matching cylindrical surface and the second matching cylindrical surface respectively face the two opposite arc-shaped plates in the wire-drawing forming device, so that the first matching cylindrical surface and the second matching cylindrical surface are far away from or close to each other.

In some embodiments, the first mount includes:

the first seat body is provided with a first U-shaped groove; and

and the T-shaped block is arranged at the bottom of the first U-shaped groove and forms two linear guide grooves with the groove walls on the two sides of the first U-shaped groove.

In some embodiments, the T-block comprises:

the bottom plate is fixedly connected with the bottom of the first U-shaped groove; and

two first upright posts which are parallel to each other are vertical to the bottom plate and are fixedly connected with the bottom plate,

wherein there is a gap between the two first uprights, the cam being located within the gap.

In some embodiments, the second mount includes:

the second seat body is provided with two second vertical columns which are parallel to each other;

the second seat body is inserted into the first U-shaped groove, and the T-shaped block is inserted between the two second upright posts.

In some embodiments, each second upright has a second U-shaped groove, the oscillation plane of the cam being located within the second U-shaped grooves of the two second uprights.

In some embodiments, the T-block comprises:

the bottom plate is fixedly connected with the bottom of the first U-shaped groove;

two first upright posts which are parallel to each other are vertical to the bottom plate and are fixedly connected with the bottom plate,

the arc-shaped plate mounting tool comprises a first stand column, a cam, a second stand column and a hinge hole, wherein a gap is formed between the two first stand columns, the cam is located in the gap, the hinge hole is formed in each first stand column, two guide through grooves are formed in two sides of a U-shaped groove of each second stand column, and the hinge hole and a hinge shaft of the guide through grooves at two ends of the hinge hole penetrate through the arc-shaped plate mounting tool.

In some embodiments, the guiding through groove is an oblong groove, and the length direction of the guiding through groove is parallel to the extending direction of the first upright post.

In some embodiments, the operating portion includes:

the rotating shaft penetrates through the T-shaped block and is fixedly connected with the cam; and

and the screwing head is fixedly connected with the end part of the rotating shaft.

In some embodiments, the first mating cylindrical surface is located on a side of the first seat far away from the second seat, and the second mating cylindrical surface is located on a side of the second seat far away from the first seat.

In an aspect of the present disclosure, there is provided an arc plate installation method based on the aforementioned arc plate installation tool, including:

placing a first arc-shaped plate to be installed on the opposite side of a second arc-shaped plate installed on the silk suction forming device;

placing the arc-shaped plate mounting tool between the first arc-shaped plate and the second arc-shaped plate, and enabling a first matching cylindrical surface of the first mounting seat to be opposite to the first arc-shaped plate and a second matching cylindrical surface of the second mounting seat to be opposite to the second arc-shaped plate;

driving a cam to rotate through an operating part of the arc plate mounting tool so as to enable the first matching cylindrical surface and the second matching cylindrical surface to be away from each other to respectively abut against the first arc plate and the second arc plate until the first arc plate reaches a correct mounting position;

locking the first arc-shaped plate through a connecting piece;

the operating part drives the cam to rotate reversely, so that the first matching cylindrical surface and the second matching cylindrical surface are close to each other until the first matching cylindrical surface is separated from the first arc-shaped plate or the second matching cylindrical surface is separated from the second arc-shaped plate;

removing the arcuate plate installation tool from between the first arcuate plate and the second arcuate plate.

Therefore, according to the embodiment of the present disclosure, the first mounting seat and the second mounting seat are mutually guided and matched, the cam is pivoted on the first mounting seat and abuts against the second mounting seat, and the first matching cylindrical surface on the first mounting seat and the second matching cylindrical surface on the second mounting seat are mutually far away or close to each other through the driving of the cam by the operating portion. Utilize first cooperation face of cylinder and second cooperation face of cylinder to support tightly respectively and inhale two relative arcs among the silk forming device to the top of second mount pad through the cooperation portion of cam leans on the fine setting that realizes interval between two cooperation faces of cylinder, and the cooperation face of cylinder can also realize good face contact with the arc, avoids making the local atress of thinner arc too big and warp in the installation, thereby has improved installation accuracy. In addition, in the installation process, the correct installation position of the arc-shaped plate can be maintained for a long time through the operation of the operation part, the locking of the arc-shaped plate can be completed through the connecting piece as soon as possible, the installation difficulty is low, and the cooperation operation of multiple persons is not needed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view showing an internal structure of a related-art suction forming apparatus;

FIG. 2 is a schematic view of an overall mounting arrangement according to some embodiments of the present disclosure;

FIG. 3 is a schematic view of the mounting structure of the T-block, cam and operator in some embodiments of the arcuate plate mounting tool according to the present disclosure;

FIG. 4 is a schematic structural view of a second mount in some embodiments of an arcuate plate installation tool according to the present disclosure;

fig. 5 is a schematic view of the structure of a hinge shaft in some embodiments of an arcuate plate setting tool according to the present disclosure;

FIG. 6 is a schematic view of a first seat in some embodiments of an arcuate plate setting tool according to the present disclosure;

fig. 7 is a flow diagram of some embodiments of an arcuate plate installation according to the present disclosure.

It should be understood that the dimensions of the various parts shown in the figures are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

As shown in fig. 2-6, the present disclosure provides an arc plate installation tool, which can achieve high installation accuracy when installing an arc plate, and reduce installation difficulty.

Referring to fig. 2, in some embodiments, an arcuate plate installation tool includes: a first mounting seat, a second mounting seat, a cam 40 and an operating part 50. The first mount has a guide groove and a first mating cylindrical surface 11. The second mounting seat is in guiding fit with the first mounting seat through the guide groove and is provided with a second fit cylindrical surface 31. The cam 40 is pivoted on the first mounting seat and is positioned on one side of the second mounting seat adjacent to the first mounting seat. The operating part 50 is connected to the cam 40, and configured to drive the cam 40 to rotate when the first mating cylindrical surface 11 and the second mating cylindrical surface 31 are respectively aligned with two opposite arc-shaped plates in the wire shaping device, so that the first mating cylindrical surface 11 and the second mating cylindrical surface 31 are far away from or close to each other.

In this embodiment, through setting up first mount pad and the second mount pad of mutual direction complex to make the pivot joint of cam on first mount pad, and support and lean on the second mount pad, thereby drive to the cam through the operating portion makes first cooperation face of cylinder on the first mount pad and second cooperation face of cylinder on the second mount pad keep away from each other or be close to each other.

Utilize first cooperation face of cylinder and second cooperation face of cylinder to support tightly respectively and inhale two relative arcs among the silk forming device to the top of second mount pad through the cooperation portion of cam leans on the fine setting that realizes interval between two cooperation faces of cylinder, and the cooperation face of cylinder can also realize good face contact with the arc, avoids making the local atress of thinner arc too big and warp in the installation, thereby has improved installation accuracy. In addition, in the installation process, the correct installation position of the arc-shaped plate can be maintained for a long time through the operation of the operation part, the locking of the arc-shaped plate can be completed through the connecting piece as soon as possible, the installation difficulty is low, and the cooperation operation of multiple persons is not needed.

Referring to fig. 2 and 6, in some embodiments, the first mount includes: a first housing 10 and a T-block 20. The first seat 10 is provided with a first U-shaped groove 13, and the T-shaped block 20 is installed at the bottom of the first U-shaped groove 13 and forms two linear guide grooves with the two side groove walls of the first U-shaped groove 13. The first matching cylindrical surface on the first mounting seat and the second matching cylindrical surface on the second mounting seat can be stably far away from or close to each other in the guiding direction of the guide groove through the guide groove.

Referring to fig. 2, 3 and 6, in some embodiments, the tee block 20 includes: a bottom plate 23 and two first uprights 21 parallel to each other. The bottom plate 23 is fixedly connected with the bottom of the first U-shaped groove 13. In fig. 1 and 6, the groove bottom of the first U-shaped groove 13 has a through hole 12 penetrating from the groove bottom to the first mating cylindrical surface 11 of the first seat 10. A connector (e.g., a bolt, etc.) may be inserted through the opening of the through hole 12 of the first mating cylindrical surface 11 and threaded through the opening of the groove bottom to be coupled with the bottom plate of the T-block 20.

The two first upright posts 21 are perpendicular to and fixedly connected with the bottom plate 23, a gap is formed between the two first upright posts 21, and the cam 40 is positioned in the gap. The two first posts 21 may constrain the position of the cam 40 in the axial direction, but do not constrain the rotation of the cam 40.

Referring to fig. 4, in some embodiments, the second mount includes: and a second seat 30. The second fastening structure 30 can have two second posts 32 parallel to each other. The second seat 30 is inserted into the first U-shaped groove 13, and the T-block 20 is inserted between the two second uprights 32. Thus, the two second upright posts 32 form a guiding fit with the two linear guide grooves formed by the T-shaped block 20 and the first U-shaped groove 13, so that the relative movement between the second mounting seat and the first mounting seat is more stable and accurate.

The cam 40 has a matching portion 41 abutting against the inner surface of the second seat 30, and as the cam 40 rotates, the distance between the matching portion 41 and the axis of the cam 40 in the guiding direction of the guiding groove changes, when the matching portion 41 is far away from the axis of the cam 40, the inner surface of the second seat 30 can be pushed away relative to the first seat 10, and when the matching portion 41 is close to the axis of the cam 40, the second seat 30 can be close to the first seat 10 under the action of its own gravity.

In order to avoid the influence of the second fastening structure 30 on the swing range of the cam 40, referring to fig. 3 and 4, in some embodiments, each second pillar 32 has a second U-shaped groove 34, and the swing plane of the cam 40 is located in the second U-shaped grooves 34 of the two second pillars 32. This allows the cam 40 to rotate into the second U-shaped groove 34 at a greater swing angle. By realizing a larger swing angle of the cam 40, a larger relative position adjustment of the second seat 30 with respect to the first seat 10 in the guiding direction of the guide groove can be realized.

Referring to fig. 3-5, in some embodiments, a hinge hole 22 is provided on each first upright 21, and each second upright 32 is provided with two guide through slots 34 on both sides of the second U-shaped groove 34, and the arc plate installation tool further includes a hinge shaft 60 passing through the hinge hole 22 and the guide through slots 34 at both ends of the hinge hole 22. The guiding function of the hinge shaft 60 to the moving direction of the second fastening body 30 can be realized by the movement of the hinge shaft 60 in the guiding through slot 34. In addition, the assembling of the arc plate mounting tool is more convenient. In some embodiments, the guiding through slot 34 is an oblong slot, and the length direction is parallel to the extending direction of the first upright 21.

The dimensions of the hinge shaft 60 may be matched to the dimensions of the hinge bore 22 (e.g., a transition fit or an interference fit therebetween) to provide a more stable mounting of the hinge shaft 60 relative to the tee block 20. And the hinge shaft 60 may be sized to mate (e.g., transition fit or clearance fit) with the opposing long side walls of the guide channel 34 such that the hinge shaft 60 can move smoothly within the guide channel 34 along the length of the guide channel 34.

In assembling, the two first vertical columns 21 of the T-block 20 can be inserted between the two second vertical columns 32 of the second seat body, and the hinge holes 22 of the two first vertical columns 21 are aligned with the guide through slots 34 on the two second vertical columns 32. Then, each hinge shaft 60 is sequentially passed through the guide through groove 34 of the second upright 32 located at one side of the first upright 21, the hinge hole 22, and the guide through groove 34 of the second upright 32 located at the other side of the first upright 21. Then, the T-shaped block 20, the second seat 30 and the hinge shaft 60 are placed in the first U-shaped groove 13 of the first seat 10, and the first seat 10 and the T-shaped block 20 are connected by the connecting member.

Referring to fig. 2 and 3, in some embodiments, the operating part 50 includes: a rotating shaft and a screwing head. A rotating shaft (hidden from view and not shown) passes through the T-block 20 and is fixedly connected to the cam 40. The screwing head is fixedly connected with the end part of the rotating shaft. The head may be of polygonal configuration, such as regular hexagonal, to facilitate the use of a tool, such as a wrench, by an operator to apply torque to the head. The rotating shaft can be rotated by rotating the screwing head, and the cam is driven to rotate, so that the second seat body 30 is pushed to move by the cam.

Referring to fig. 2, the first mating cylindrical surface 11 is located on a side of the first seat 10 away from the second seat 30, and the second mating cylindrical surface 31 is located on a side of the second seat 30 away from the first seat 10. When the arc plate installation tool is used, the first fitting cylindrical surface 11 may be provided at a lower side of the second fitting cylindrical surface 31, so that when the fitting portion 41 of the cam 40 rotates from a position far from the axis to a position close to the axis, the second seat 30 may move downward by the action of its own weight or the extrusion of the arc plate at the upper side thereof, thereby approaching the first seat 10. In other embodiments, an elastic element which enables the first mounting seat and the second mounting seat to have a tendency to approach each other can also be arranged between the first mounting seat and the second mounting seat.

Fig. 7 is a schematic flow diagram of some embodiments of an arcuate plate installation according to the present disclosure. Referring to fig. 7 and the aforementioned arc installation tool embodiments, the arc installation method of the present embodiment based on the aforementioned arc installation tool includes steps 100 to 600.

In step 100, a first curved plate to be installed is placed on the opposite side of a second curved plate that has been installed on the suction wire forming device. For example, a first arc as a lower arc is placed on the underside of the mounted upper arc (as a second arc).

In step 200, the arc-shaped plate installation tool is placed between the first arc-shaped plate and the second arc-shaped plate, and the first matching cylindrical surface 11 of the first installation seat is made to face the first arc-shaped plate, and the second matching cylindrical surface 31 of the second installation seat is made to face the second arc-shaped plate. For example, the first mating cylindrical surface 11 is positioned downward, and the second mating cylindrical surface 31 is positioned upward.

In step 300, the cam 40 is driven to rotate by the operating part 50 of the arc plate installation tool, so that the first matching cylindrical surface 11 and the second matching cylindrical surface 31 are far away from each other to abut against the first arc plate and the second arc plate respectively until the first arc plate reaches the correct installation position. The cam 40 can realize fine adjustment of the distance between the first matching cylindrical surface 11 and the second matching cylindrical surface 31 when rotating, and after the cam 40 is adjusted in place, the distance between the first matching cylindrical surface 11 and the second matching cylindrical surface 31 can be maintained unchanged.

In step 400, the first arcuate plate is locked via a connector. The operator can lock the first arc by means of the connecting piece when the first arc reaches the correct mounting position, which for example can keep the gap between the throwing pin of the throwing roller and the first arc at 0.06 mm.

In step 500, the cam 40 is driven by the operating part 50 to rotate in the opposite direction, and at this time, the second seat 30 can translate in a direction approaching the first seat 10 under the action of its own gravity or the pressing action of the second arc-shaped plate. So that the first mating cylindrical surface 11 and the second mating cylindrical surface 31 approach each other until the first mating cylindrical surface 11 is separated from the first arc-shaped plate or the second mating cylindrical surface 31 is separated from the second arc-shaped plate.

In step 600, the arcuate plate installation tool is removed from between the first arcuate plate and the second arcuate plate. The arc installation tool is easy to take out, since the first mating cylindrical surface 11 is disengaged from the first arc or the second mating cylindrical surface 31 is disengaged from the second arc.

Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims (10)

1. An arcuate plate installation tool, comprising:

a first mounting seat having a guide groove and a first mating cylindrical surface (11);

the second mounting seat is in guiding fit with the first mounting seat through the guide groove and is provided with a second fit cylindrical surface (31);

the cam (40) is pivoted on the first mounting seat and is positioned on one side, adjacent to the first mounting seat, of the second mounting seat; and

the operating part (50) is connected with the cam (40) and is configured to drive the cam (40) to rotate when the first matching cylindrical surface (11) and the second matching cylindrical surface (31) are respectively aligned with two opposite arc-shaped plates in the wire-drawing forming device, so that the first matching cylindrical surface (11) and the second matching cylindrical surface (31) are far away from or close to each other.

2. The arcuate plate installation tool of claim 1, wherein said first mounting block comprises:

the first seat body (10) is provided with a first U-shaped groove (13); and

the T-shaped block (20) is installed at the bottom of the first U-shaped groove (13) and forms two linear guide grooves together with the groove walls on the two sides of the first U-shaped groove (13).

3. The arcuate plate installation tool of claim 2, wherein said tee block (20) includes:

the bottom plate (23) is fixedly connected with the bottom of the first U-shaped groove (13); and

two first upright posts (21) which are parallel to each other and are vertical to the bottom plate (23) and fixedly connected with the bottom plate,

wherein there is a gap between the two first uprights (21), the cam (40) being located in the gap.

4. The arcuate plate installation tool of claim 2, wherein said second mounting block includes:

the second seat body (30) is provided with two second vertical columns (32) which are parallel to each other;

the second seat body (30) is inserted into the first U-shaped groove (13), and the T-shaped block (20) is inserted between the two second upright columns (32).

5. The arcuate plate installation tool according to claim 4, wherein each second upright (32) has a second U-shaped groove (34), the oscillation plane of the cam (40) being located within the second U-shaped grooves (34) of the two second uprights (32).

6. The arcuate plate installation tool of claim 5, wherein said tee block (20) includes:

the bottom plate (23) is fixedly connected with the bottom of the first U-shaped groove (13); and

two first upright posts (21) which are parallel to each other and are vertical to the bottom plate (23) and fixedly connected with the bottom plate,

wherein, there is the clearance between two first stands (21), cam (40) are located in the clearance, be equipped with hinge hole (22) on every first stand (21), every second stand (32) are equipped with two direction logical groove (34) in second U-shaped recess (34) both sides, the arc installation tool still includes and passes hinge hole (22) and be located articulated shaft (60) of the direction logical groove (34) at hinge hole (22) both ends.

7. The arcuate plate installation tool according to claim 6, wherein the guide through slot (34) is an oblong slot with a length direction parallel to the direction of extension of the first stud (21).

8. The arcuate plate installation tool of claim 2, wherein the operating portion (50) includes:

the rotating shaft penetrates through the T-shaped block (20) and is fixedly connected with the cam (40); and

and the screwing head is fixedly connected with the end part of the rotating shaft.

9. The arcuate plate installation tool according to claim 4, wherein said first mating cylindrical surface (11) is located on a side of said first seat (10) remote from said second seat (30), and said second mating cylindrical surface (31) is located on a side of said second seat (30) remote from said first seat (10).

10. An arc plate installation method based on the arc plate installation tool according to any one of claims 1 to 9, comprising:

placing a first arc-shaped plate to be installed on the opposite side of a second arc-shaped plate installed on the silk suction forming device;

placing the arc-shaped plate mounting tool between the first arc-shaped plate and the second arc-shaped plate, and enabling a first matching cylindrical surface (11) of the first mounting seat to be opposite to the first arc-shaped plate and a second matching cylindrical surface (31) of the second mounting seat to be opposite to the second arc-shaped plate;

driving a cam (40) to rotate through an operating part (50) of the arc-shaped plate mounting tool so as to enable a first matching cylindrical surface (11) and a second matching cylindrical surface (31) to be far away from each other to respectively abut against the first arc-shaped plate and the second arc-shaped plate until the first arc-shaped plate reaches a correct mounting position;

locking the first arc-shaped plate through a connecting piece;

the cam (40) is driven to rotate reversely by the operating part (50), so that the first matching cylindrical surface (11) and the second matching cylindrical surface (31) are close to each other until the first matching cylindrical surface (11) is separated from the first arc-shaped plate or the second matching cylindrical surface (31) is separated from the second arc-shaped plate;

removing the arcuate plate installation tool from between the first arcuate plate and the second arcuate plate.

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