KR20120008426U - Jaw structure of apparatus for attachable vertical plate without welding - Google Patents

Abstract

The present invention relates to a jaw structure of a non-welding vertical member mounting apparatus, the base is inclined top surface; An operating cylinder fixed to the top surface of the base and having a nipple for receiving a working fluid; An upper jaw fixed to an end portion of the piston rod provided to draw in and out at one end of the operation cylinder and having teeth formed on a surface contacting the vertical member; In the non-welding vertical member mounting apparatus comprising a lower jaw is fixed to the end of the piston rod provided to be drawn in and out at the other end of the operation cylinder and the teeth formed in contact with the main plate; When the thickness of the coating film formed on the main plate or the vertical member is in the range of 0-300 μm, the depth of the teeth formed in the lower jaw is made deeper to 1.55-2.95 mm as the thickness of the coating film increases. Tooth angle (incidence angle) of teeth is also increased to 25-40 °, the thickness of the coating / the depth ratio of the tooth is designed to be maintained below 20-30% (percentage of the length unit) It provides the jaw structure of the device.
According to the present invention, the jaw structure that provides the main supporting force of the mounting device is improved so that the sliding phenomenon does not occur for each film thickness, thereby improving work efficiency, improving workability and productivity, and reducing noise (warming loss prevention). In addition, the musculoskeletal diseases can be prevented and the convenience of work can be improved.

Description

JAW STRUCTURE OF APPARATUS FOR ATTACHABLE VERTICAL PLATE WITHOUT WELDING}

The present invention relates to a jaw structure of a non-welding vertical member mounting apparatus, and more particularly, when the vertical member is mounted on the main plate before welding the main plate and the vertical member during ship manufacture, the dog surface or the wedge piece is not used. The weld-free vertical member mounting device improves the workability by improving the structure of the jaws in the non-welded vertical member mounting device, which can eliminate vertical defects without damage. It's about the jaw structure.

In general, when assembling a block in a ship manufacturing process, a large block is assembled by assembling a small assembly / heavy assembly unit group.

In this block assembly process, various mounting angles are formed in each inner member.

In particular, for block construction, for example, a main plate (here, the 'abacus' is merely an illustrative description and includes a plate of a similar type such as iron plate or steel sheet) a vertical plate (Vertical Plate) When welding after installation, the verticality is maintained through the defect that the vertical member is not positioned correctly on the mounting line of the vertical member mounted on the abacus or the buckling deformation of the skirt line is severely caused by various internal and external factors. If not, it will cause mounting angle, and if it is out of control range, it will cause serious problem, so rework or correction is necessary.

For example, when it is mounted to weld the vertical member to the main plate to construct the block, buckling deformation or straightness defect is caused, resulting in a phenomenon that the weld quality is degraded.

In this case, conventionally, various kinds of pieces such as dogpieces or wedge pieces are used to correct buckling deformation and straightness defects.

At this time, the work using the piece was usually in the form of welding the piece to the main plate and put the wedge piece between the vertical member and the piece hammering or inserting the hydraulic cylinder to operate.

Therefore, after the work was inevitably required to remove the piece, and the grinding work due to the paint surface was inevitably involved.

As a result, the conventional calibration method adds unnecessary additional operations such as welding, hammering, grinding, etc., which not only increases work time but also increases productivity and manpower consumption due to the weight of the work load, and further damages the painted surface. As a result, local repainting is required to prevent product deterioration, resulting in many inconveniences, difficulties, and cost increases.

In addition, the worker's musculoskeletal diseases caused by hammering, aggravated the risk of safety accidents, causing severe noise also had a problem that worsens the working environment.

In order to improve this, the applicant has filed a patent application for a 'non-welding vertical member mounting device' and has been registered as a registered patent No. 0914439.

As disclosed in the patent application attached to Figure 1, in the mounting apparatus for correcting the mounting angle between the main plate 10 and the vertical member 20 used in the ship manufacturing; A base 100 having an inclined top surface; An operating cylinder 200 fixedly installed on an upper surface of the base 100 and having a nipple 210 to receive a working fluid; A piston rod 300 connected to one end of the operation cylinder 200 to be withdrawn; A flow stopper 400 fixed to an end of the piston rod 300 and having teeth formed on a surface in contact with the vertical member 20; The piston rod 300 is fixed to the other end of the operation cylinder 200 is installed on the opposite side, characterized in that it comprises a fixed stopper 500 having a tooth formed on the surface in contact with the main plate 10, wherein A guide ring 600 is further installed on the outer surface of the operation cylinder 200, and the piston rod 300 may be further provided with a guide bar 610 reciprocating while being fitted to the guide ring 600. will be.

In addition, the bracket 620 may be further provided for smooth fixing of the guide bar 610.

However, as illustrated in FIG. 2, when a coating film is formed on the bottom surface (eg, the main plate 10), the fixed stopper 500 having a tooth (see FIG. 1), that is, also called a jaw or a 'tooth jack' is used. ) Is a problem that can't be perfectly fixed due to the coating, making it impossible to work.

In order to prevent this, the worker tried to work with the foot stepped on the stationary stopper 500, but it was inadequate and could not solve the phenomenon of the pushing itself, and in the case where the coating film was formed, the mounting device itself became useless and work using the same. This is avoided, resulting in a problem that workability and productivity decrease.

The present invention was created in view of the above-described problems in the prior art, and is improved to the structure of the jaw so as to be supported on the bottom surface of the non-welding vertical member mounting apparatus so that sufficient support force and push are not generated. By doing so, even if a coating film is formed on the bottom surface, it is possible to use smoothly and efficiently to prevent the use avoidance phenomenon of the device, and to contribute to the improvement of productivity and workability.

The present invention is a means for achieving the above problem, the top surface is inclined base; An operating cylinder fixed to the top surface of the base and having a nipple for receiving a working fluid; An upper jaw fixed to an end portion of the piston rod provided to draw in and out at one end of the operation cylinder and having teeth formed on a surface contacting the vertical member; In the non-welding vertical member mounting apparatus comprising a lower jaw is fixed to the end of the piston rod provided to be drawn in and out at the other end of the operation cylinder and the teeth formed in contact with the main plate; As the thickness of the coating film formed on the main plate or the vertical member becomes thicker, the depth of the teeth formed in the lower jaw is further increased as the thickness of the coating film increases, and the angle of the teeth is designed to increase. The jaw structure of the welding vertical member mounting device is provided.

At this time, the outer jaw and the outer jaw is characterized in that the curved surface or that is.

In addition, the present invention is a means for achieving the above-described problem, the top surface is inclined base; An operating cylinder fixed to the top surface of the base and having a nipple for receiving a working fluid; An upper jaw fixed to an end portion of the piston rod provided to draw in and out at one end of the operation cylinder and having teeth formed on a surface contacting the vertical member; In the non-welding vertical member mounting apparatus comprising a lower jaw is fixed to the end of the piston rod provided to be drawn in and out at the other end of the operation cylinder and the teeth formed in contact with the main plate; When the thickness of the coating film formed on the main plate or the vertical member is in the range of 0-300 μm, the depth of the teeth formed in the lower jaw is made deeper to 1.55-2.95 mm as the thickness of the coating film increases. The angle of incidence (incidence angle) of the tooth is also increased to 25 to 40 °, but the thickness of the tooth / tooth depth ratio of the coating is designed to be maintained below 20-30% (percentage of the length unit). It provides the jaw structure of the device.

In this case, when the thickness (μm) of the coating film is 0-15㎛, the depth of the tooth is characterized in that the 1.55 ~ 1.65mm, the angle (incidence angle) is maintained at 25 ~ 35 °.

In addition, when the thickness (μm) of the coating film exceeds 15 μm and is 150 μm or less, the depth of the tooth is 2.65 to 2.75 mm, and the angle (incidence angle) is also maintained at 25 to 35 °.

In addition, when the thickness (μm) of the coating film exceeds 150㎛ and 300㎛ or less, the depth of the tooth is characterized in that the 2.85 ~ 2.95mm, the angle (incidence angle) is maintained at 30 ~ 40 °.

In addition, when the thickness (μm) of the coating film is greater than 300㎛, the depth of the tooth is 2.95mm or more, the angle (incidence angle) is 30 ~ 40 °, if the environment is more than 300㎛ depending on the conditions fluidity is have.

The present invention is not limited to the material of the steel sheet or steel plate of this type as described above other than the thick plate, it is obvious that there may be some variations depending on the material of the bottom surface.

In addition, it includes both curved and rectangular shapes according to the shape of the support including the tooth, jaws of the tooth type can be rounded or any other shape at any time, the effect varies depending on the angle of incidence regardless of the shape.

In addition, the teeth formed in the upper jaw is also characterized in that they are designed under the same conditions as the teeth formed in the lower jaw.

According to the present invention, the jaw structure that provides the main supporting force of the mounting device is improved so that the sliding phenomenon does not occur for each film thickness, thereby improving work efficiency, improving workability and productivity, and reducing noise (warming loss prevention). In addition, the musculoskeletal diseases can be prevented and the convenience of work can be improved.

1 is an exemplary perspective view showing an operation example of a non-welding vertical member mounting apparatus according to the prior art.
Figure 2 is an exemplary view for showing a problem generated during the field application by manufacturing a non-welded vertical member mounting apparatus according to the prior art.
3 is an exemplary sample photograph of a non-welded vertical member for explaining a jaw structure according to the present invention.
4 to 6 is an exemplary view showing a jaw structure of a non-welding vertical member mounting apparatus according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

First, the inventors tried to increase the load on the jaw, i.e. tonnage, in order to solve the prior art as described above.

This is due to the prediction that the load on the jaws supported on the floor is low and light, causing the phenomenon of rolling.Two times to 10 tons has been doubled from 5 tons.

However, the jungle phenomenon still occurred. On the other hand, when there was no coating on the bottom plate, even a load of 5 tons did not occur at all.

On the other hand, because the contact area of the jaw (Jaw) in contact with the floor surface may be small, the phenomena may be induced, it was also tested whether the phenomena can be prevented by increasing the contact area to increase the frictional force.

For example, since the jaw width was 10mm, the jaw was extended to 15mm and 20mm, and the jaw phenomenon was still induced in this case. It was also confirmed that it was independent of the contact area of the jaw.

Through this series of experiments, the inventors were convinced that the jaw's jungle was not caused by a simple underload or by the contact area of the jaw, that is, by its low frictional force. It is noted that the jungle phenomenon is remarkable when the coating film is formed on the surface, and various analysis results show that the sliding phenomenon is increased due to the sliding property.

In addition, the present invention includes the main configuration of the registered patent No. 0914439, which has been registered and filed by the applicant of the present application as it is, but when the coating film is formed on the bottom plate, that is, the main plate can completely prevent the jaw of the jaw during work The shape and structure of the jaw is improved.

However, only the term "fixed stopper" is replaced with "jaw".

In other words, the present invention, as illustrated in Figure 3, as a mounting apparatus for correcting the mounting angle between the main plate 10 and the vertical member 20 used in the manufacture of the vessel, the top surface is inclined base 40; An operating cylinder 30 fixedly installed at an upper surface of the base 40 and having a nipple 70 capable of receiving a working fluid; An upper jaw (50) having teeth formed on a surface of the piston rod which is fixed to an end of the piston rod provided at one end of the operation cylinder (30) and in contact with the vertical member (20); In the mounting apparatus including a lower jaw (60) having teeth on the surface contacting with the main plate 10 and fixed to the end of the piston rod provided to be drawn in and out at the other end of the working cylinder (30), the lower jaw (60) The tooth shape and structure of the) are improved.

In this case, the improved toothed structure according to the present invention can be applied to the lower jaw 60 and also to both the lower jaw 60 and the upper jaw 50.

For example, the upper jaw 50 and the lower jaw 60 according to the present invention, as shown, the one end surface of the rectangular-shaped member is diagonally cut in an oblique direction, and has a structure in which a saw tooth is formed on the cutting surface.

At this time, the tooth should be designed different in angle and depth according to the thickness of the coating film.

In the present invention, the optimum value was calculated by testing the tooth shape according to the thickness of the coating film, that is, the angle and depth. As a result, when the coating film is absent, that is, when the thickness of the coating film is zero, the coating film thickness up to 0.3 mm is obtained. It has been found that the angle of the tooth when it has to be increased from 25 ° to 40 ° and the depth of the tooth must be increased from 1.55 mm to 2.95 mm.

Of course, this could be accomplished by experimenting with finding the optimal value, but not by simply increasing the tooth angle or deepening the tooth depth.

Many studies have shown that there is a correlation between the angle and the depth of the tooth depending on the thickness of the coating, and all the results of the test according to the inference are satisfactory, that is, the lower jaw (60) is not pushed even with the coating. It can be confirmed that it is perfectly supported.

For this purpose, at least the thickness / tooth depth of the coating film must be present in the range of ≦ 10-20%, and is independent of the width of the lower jaw 60, that is, the frictional force.

Here, 10-20% means a percentage, which means that when the ratio of the thickness of the coating film and the depth of the tooth is converted to the same unit and the ratio is calculated, the depth of the tooth should have a larger value than the thickness of the coating film. This is because the tooth penetrates the coating film and penetrates to the surface of the bottom plate, that is, the main plate 10 itself rather than the coating layer, and in order to have sufficient fixed bearing force, the tooth must be pressed against the bottom plate itself. Say you have to have a great depth.

However, if the ratio is less than 10%, there is still a jungle phenomenon because it does not provide sufficient fixed bearing capacity, and if it exceeds 20%, only the tooth part is in contact with the sole plate under high load, and thus breakage occurs. And the durability is limited, so it must be limited to the above range.

For example, as shown in Figure 4, when the thickness (㎛) of the coating film applied to the bottom plate is 0-15㎛ the depth of the teeth 62 formed on the inclined surface of the lower jaw 60 is 1.55-1.65mm, angle (incidence angle) ) Was optimal at 25-35 °.

Particularly preferably, the best effect is maintained when the depth is maintained at 1.6 mm and the incident angle is 30 °.

As another example, as shown in FIG. 5, when the thickness (μm) of the coating film applied to the bottom plate is greater than 15 μm and less than or equal to 150 μm, the depth of the teeth 62 formed on the inclined surface of the lower jaw 60 is 2.65-2.75 mm. , The angle (incidence angle) was maintained at 25-35 ° optimum conditions.

Particularly preferably, the best effect was obtained when the depth was kept at 2.7 mm and the incident angle of 30 °.

As another example, as shown in FIG. 6, when the thickness (μm) of the coating film applied to the bottom plate is greater than 150 μm and less than or equal to 300 μm, the depth of the teeth 62 formed on the inclined surface of the lower jaw 60 is 2.85-2.95. mm and angle (incidence angle) were optimal conditions to keep at 30-40 degrees.

Particularly preferably, it showed the best effect when kept at a depth of 2.9 mm and an incident angle of 35 °.

Furthermore, there may be a case where the thickness (μm) of the coating film applied to the bottom plate is greater than 300 μm, but in most cases, the thickness of the coating film made in the ship manufacturing process is 300 μm or less, and if necessary, more than that Since it can be determined that the optimum conditions for the bar, the present invention will be limited to the above categories.

As a result of retesting by setting the lower jaw (60) according to the present invention made in such a condition according to the coating film thickness, the jaw of the lower jaw (60) did not occur at all, and effective mounting work was possible.

As a result, when the coating film is present on the bottom plate, it is confirmed that the lower jaw 60 is pushed by the coating layer. As a solution, the shape and structure of the lower jaw 60 are improved to lower the thickness of the lower jaw ( By adjusting the depth and angle (incidence angle) of the teeth 62 formed on the inclined surface of 60, it was possible to completely prevent the sliding phenomenon of the lower jaw (60).

Accordingly, workability is expected to be further improved.

In addition, the shape of the lower jaw (60) or the upper jaw (50), that is, the appearance is a round shape, the applicant has been registered after the filing of the present application, while the present invention takes a square shape, but this is what the present invention is intended to solve Since it is completely unrelated to the jungle phenomenon, there is no need to limit its shape, and only the structure of the tooth 62, that is, the angle of incidence and depth (groove depth) of the saw ratio 62 is related to the jungle phenomenon. Shall be.

10: abacus 20: vertical member
30: working cylinder 40: base
50: upper jaw 60: lower jaw
62: tooth 70: nipple

Claims (7)

A base 40 having an inclined top surface; An operating cylinder 30 fixedly installed at an upper surface of the base 40 and having a nipple 70 capable of receiving a working fluid; An upper jaw (50) having teeth formed on a surface of the piston rod which is fixed to an end of the piston rod provided at one end of the operation cylinder (30) and in contact with the vertical member (20); Non-welding vertical member mounting apparatus including a lower jaw (60) having teeth 62 formed on a surface contacting with the main plate 10 and fixed to the end of the piston rod provided to be drawn in and out at the other end of the operation cylinder (30) To;
As the thickness of the coating film formed on the main plate 10 or the vertical member 20 increases, the depth of the teeth 62 formed on the lower jaw 60 increases further as the thickness of the coating film increases. Jaw structure of a non-welding vertical member mounting apparatus, characterized in that the angle of the tooth 62 is designed to be large.
The method according to claim 1;
The outer jaw structure of the upper jaw (50) and the lower jaw (60) is a jaw structure of a non-welding vertical member mounting apparatus, characterized in that the curved surface or plane.
A base 40 having an inclined top surface; An operating cylinder 30 fixedly installed at an upper surface of the base 40 and having a nipple 70 capable of receiving a working fluid; An upper jaw (50) having teeth formed on a surface of the piston rod which is fixed to an end of the piston rod provided at one end of the operation cylinder (30) and in contact with the vertical member (20); Non-welding vertical member mounting apparatus including a lower jaw (60) having teeth 62 formed on a surface contacting with the main plate 10 and fixed to the end of the piston rod provided to be drawn in and out at the other end of the operation cylinder (30) To;
As the thickness of the coating film formed on the main plate 10 or the vertical member 20 increases from 0 to 300 μm, the depth of the teeth 62 formed on the lower jaw 60 increases from 1.55 to 2.95 mm. , The angle (incidence angle) of the tooth 62 is also increased from 25 ° to 40 °,
Jaw structure of a non-welded vertical member mounting apparatus, characterized in that the thickness ratio of the thickness of the coating / tooth depth is designed to be maintained at 20-30% (percentage of the length unit) or less.
The method according to claim 3;
When the thickness (μm) of the coating film is 0-15 μm, the depth of the tooth 62 is 1.55-1.65mm, the angle (incidence angle) is maintained at 25-35 °, characterized in that the non-welding vertical member mounting apparatus Jaw structure.
The method according to claim 3;
When the thickness (μm) of the coating film exceeds 15 μm and is 150 μm or less, the depth of the tooth 62 is 2.65-2.75 mm and the angle (incidence angle) is maintained at 25-35 °. Jaw structure of member mounting device.
The method according to claim 3;
When the thickness (μm) of the coating film exceeds 150 μm and is 300 μm or less, the depth of the tooth 62 is 2.85-2.95 mm, and the angle (incidence angle) is maintained at 30-40 °. Jaw structure of the mounting device.
The method according to any one of claims 1 to 6;
The jaw structure of a non-welding vertical member auxiliary device, characterized in that the teeth formed in the upper jaw (50) is designed under the same conditions as the teeth (62) formed in the lower jaw (60).

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