CN112157426A

CN112157426A - Assembly device and assembly method of structural member for port machinery product

Info

Publication number: CN112157426A
Application number: CN202011072575.6A
Authority: CN
Inventors: 韩文利; 管其刚; 张旭丁
Original assignee: Xuzhou Xugong Port Machinery Co ltd
Current assignee: Xuzhou Xugong Port Machinery Co ltd
Priority date: 2020-07-08
Filing date: 2020-10-09
Publication date: 2021-01-01
Anticipated expiration: 2040-10-09
Also published as: CN112157426B

Abstract

The invention discloses a device for assembling structural members for port machinery products, which has the advantages of simple form, convenient operation, high efficiency, low consumption, low labor intensity of workers and the like. The assembling device is applied to assembling the structural parts, so that the operation modularization and the process integration are realized, and the assembling method of the device is only needed to place each plate at the corresponding position for splicing and assembling. The assembling method is not easy to make mistakes, and realizes high precision of assembling points of the parts.

Description

Assembly device and assembly method of structural member for port machinery product

Technical Field

The invention relates to a device for assembling a structural member for a port mechanical product and a method for assembling the structural member by using the device, belonging to the technical field of structural member assembly.

Background

One of port machinery products belongs to a mobile port machine, and a front-lifting crane is most representative of the mobile port machine products. The main operation object of the front-lift spreader is a container, and the front-lift spreader needs to have a rotation function due to the restriction of factors such as port terrain, port logistics, port storage capacity and throughput. The workpiece is a main part of a rotating part of the lifting appliance, the part requires high tailor-welding precision, and meanwhile, in order to comprehensively consider the manufacturing cost of enterprises and reduce machining procedures as much as possible, part of high-precision holes and surfaces adopt boring-free and milling-free processes. Therefore, in the assembly splicing welding process, higher operation efficiency and higher assembly splicing point precision are required to ensure that the forming quality of the product structural member is qualified.

The traditional assembly point splicing process is manual line drawing and carries out point splicing, but the marking error of the mode is large, the precision of the structural member assembly point splicing is low, the forming quality is poor, and the precision can be ensured only through processing in the later stage.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, provides a combination device and a combination method of structural members for port machinery products, and solves the technical problem of low precision in the combination and point splicing process in the prior art.

In order to solve the technical problem, the invention provides a component assembly device of a structural component for a port mechanical product, which is characterized by comprising a base, a workpiece to be assembled is placed on the base,

the workpiece comprises a bottom plate, a mounting hole is formed in the middle of the bottom plate, inner vertical plates are symmetrically mounted on two sides of the mounting hole on the bottom plate, an outer vertical plate is symmetrically mounted on the outer side of each inner vertical plate, a rib plate I and a rib plate II are mounted between the two inner vertical plates, the rib plate I is located on the upper side of the mounting hole, the rib plate II is located on the lower side of the mounting hole, and hinge lug plates are mounted at two top corners of the lower end of the bottom plate;

the clamping device is arranged on the base and comprises a first base, a guide post is vertically arranged at one end of the first base, a pressing plate is sleeved on the guide post, a screwing device penetrates through the pressing plate, the bottom end of the screwing device is opposite to the upper surface of the first base, a spring is sleeved at the lower end of the screwing device, and one end of the spring abuts against the upper surface of the first base;

a jacking device for jacking the bottom plate is arranged above the base, and a backer for propping against the bottom plate is arranged below the base;

small limiting clamping seats are respectively arranged on two side edges of the base, which are positioned on the bottom plate, and each small limiting clamping seat comprises a third base, a clamping shaft assembly transversely penetrates through the third base and is used for limiting and clamping the bottom plate and the outer vertical plate of the workpiece, and a wedge-shaped plate is transversely inserted into the clamping shaft assembly;

the base is provided with main limiting clamping seats on two side edges of the bottom plate respectively, each main limiting clamping seat comprises a base IV, a limiting shaft is transversely fixed at the upper end of each base IV through a clamping assembly, a bushing is sleeved on each limiting shaft, a wedge hole is formed in each limiting shaft, a wedge block is installed in each wedge hole, and the wedge blocks are tightly matched with the wedge holes through friction force;

end retainers are respectively arranged at the end parts of the inner vertical plate and the outer vertical plate on the base, each end retainer comprises an end retainer body, each end retainer body is of an inverted M-shaped framework, two outer side support arms of each end retainer body are provided with jacking blocks, a middle support arm of each end retainer body is provided with two cushion blocks four matched with the jacking blocks, the two cushion blocks four are arranged back to back, and the jacking blocks are matched with the cushion blocks four for use;

a middle retainer is arranged between the two main limiting clamping seats on the base, the middle retainer comprises a fifth base, two V-shaped blocks are fixed on the upper end face of the fifth base side by side, a tightener is installed between the two V-shaped blocks, a pressing block is fixed on the tightener, and the pressing block is opposite to the two V-shaped blocks.

Further, the clamping device is provided with 5 groups, namely 2 groups are arranged on the lower side of the bottom plate, one group is arranged on the left side, one group is arranged on the right side, and 2 groups are arranged on the upper side, and the clamping device is used for clamping the corresponding sides of the bottom plate.

Furthermore, a first cushion block is movably arranged on the contact surface of the pressure plate and the bottom plate.

Furthermore, the jacking device comprises a second base, a first clamping shaft transversely penetrates through the second base, and a T-thread pair is arranged on the outer surface of the first clamping shaft.

Furthermore, the clamping shaft assembly comprises a second clamping shaft, one end of the second clamping shaft is provided with a handle used for driving the second clamping shaft to rotate, the second clamping shaft transversely penetrates through the third base, and an optical axis is matched and connected with the unthreaded hole between the second clamping shaft and the third base; and a wedge hole is formed in the second clamping shaft, a wedge-shaped plate is installed in the wedge hole, and the wedge-shaped plate is tightly matched with the wedge hole through friction force.

Further, the clamping assembly comprises a radial pressing plate, a radial rotary pressing device, an axial pressing plate and an axial rotary pressing device, the radial pressing plate is placed above the limiting shaft, the right end of the radial pressing plate is hinged with the base IV through a first hinge point shaft, the left end of the radial pressing plate is fixed with the base IV through the radial rotary pressing device, the lower end of the radial rotary pressing device is hinged with the base IV through a second hinge point shaft, the axial pressing plate is installed on the end face of the limiting shaft, and the lower end of the axial pressing plate is fixed with the base IV through the axial rotary pressing device.

Furthermore, hanging rings are installed at four corners of the base.

Correspondingly, the invention also provides a method for assembling the assembly device of the structural member for the port machinery product, which is characterized by comprising the following steps of:

the base is placed stably;

inserting a backer into the base;

putting the bottom plate in the state;

putting the jacking device in the state;

placing the clamping device in the above state;

putting the middle retainer, the main limiting clamping seat, the inner vertical plate and the outer vertical plate in the state;

the end part retainer and the small limiting clamping seat are placed under the state;

putting the first rib plate, the second rib plate and the lug hinging plate in the state;

integrally adjusting and checking the position of the workpiece;

the splice points position each piece.

Compared with the prior art, the invention has the following beneficial effects: the device has the advantages of simple form, convenient operation, high efficiency, low consumption, low labor intensity of workers and the like. The assembling device is used for assembling structural parts, operation modularization and process integration are achieved, and only the device is used for placing each plate at the corresponding position to perform point splicing and assembling. The assembling method is not easy to make mistakes, and the assembling point precision of the parts is high.

Drawings

FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention;

FIG. 2 is a schematic view of a workpiece;

FIG. 3 is a schematic view of the structure of the clamping device;

FIG. 4 is a schematic structural view of a small limit clamping seat;

FIG. 5 is a schematic structural view of the clamp shaft assembly;

FIG. 6 is a schematic structural view of the main limiting clamping seat;

FIG. 7 is a schematic structural view of the clamping assembly;

FIG. 8 is a schematic view of the construction of the jacking device;

FIG. 9 is a schematic structural view of the end retainer;

FIG. 10 is a schematic structural view of the center retainer;

FIG. 11 is a diagram illustrating the status of assembly step 2;

FIG. 12 is a diagram illustrating the status of the assembly step 4;

FIG. 13 is a diagram illustrating the state of assembly step 5;

FIG. 14 is a diagram illustrating the state of step 6;

fig. 15 is a schematic view of the state of the assembly step 7.

Reference numerals:

1. a base;

2. 2-1 parts of workpieces, 2-2 parts of bottom plates, 2-2 parts of inner vertical plates, 2-3 parts of outer vertical plates, 2-4 parts of rib plates I, 2-5 parts of rib plates II, 2-6 parts of hinge lug plates;

3. 3-1 parts of a clamping device, 3-1 parts of a base I, 3-2 parts of a spring, 3-3 parts of a screwing device, 3-4 parts of a pressing plate, 3-5 parts of a guide column, 3-6 parts of a cushion block I;

4. a backer;

5. 5-1 of a small limiting clamping seat, 5-2 of a base III, 5-2 of a clamping shaft assembly, 5-2-1 of a cushion block III, 5-2-2 of a clamping shaft II, 5-2-3 of a handle, 5-3 of a wedge-shaped plate;

6. the device comprises a main limiting clamping seat 6-1, a base four, 6-2, a clamping assembly 6-2-1, a radial pressing plate 6-2-2, a hinge point shaft I, 6-2-3, a radial spinning device 6-2-4, a hinge point shaft II, 6-2-5, an axial pressing plate 6-2-6, an axial spinning device 6-3, a limiting shaft 6-4, a bushing 6-5 and a wedge block;

7. the device comprises a jacking device 7-1, bases II, 7-2, clamping shafts I, 7-3 and a cushion block II;

8. the end retainer comprises an end retainer body 8-1, a jacking block 8-2, a jacking block 8-3 and a cushion block IV;

9. 9-1 parts of a middle retainer, 9-2 parts of a base, 9-3 parts of a V-shaped block, 9-4 parts of a pressing block and a tightener;

10. a lifting ring.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present patent application, it is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

In the description of the present patent, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present patent and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present patent. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present patent application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present patent can be understood in a specific case by those skilled in the art.

The invention relates to a device for assembling structural parts for port machinery products, which is shown in figure 1 and comprises a base 1, wherein a workpiece 2 (structural part) to be assembled is placed on the base 1. The base 1 is the basic platform for the implementation of the device of the invention. The base 1 is provided with functional mounting holes at appropriate positions, and devices such as a clamping device 3, a backer 4, a limiting clamping seat 5, a main limiting clamping seat 6, a jacking device 7, an end retainer 8 and an intermediate retainer 9 can be mounted through the mounting holes.

Referring to fig. 2, the workpiece structure of the assembly body is shown, wherein the workpiece 2 comprises a bottom plate 2-1, the bottom plate 2-1 is in an opposite quadrilateral shape, through holes are formed in two top corners of the upper end of the bottom plate 2-1, and mounting holes are formed in the middle of the bottom plate 2-1. When a workpiece is assembled, inner vertical plates 2-2 are symmetrically arranged on two sides of a mounting hole on a bottom plate 2-1, an outer vertical plate 2-3 is symmetrically arranged on the outer side of each inner vertical plate 2-2, a rib plate I2-4 and a rib plate II 2-5 are arranged between the two inner vertical plates 2-2, the rib plate I2-4 is located on the upper side of the mounting hole, the rib plate II 2-5 is located on the lower side of the mounting hole, and finally, hinge lug plates 2-6 are arranged at two top corners of the lower end of the bottom plate 2-1. That is to say, the installation sequence of the workpiece is that the bottom plate 2-1, the inner vertical plate 2-2, the outer vertical plate 2-3, the rib plate one 2-4, the rib plate two 2-5 and the hinge ear plate 2-6.

Referring to fig. 1, in order to fix a bottom plate 2-1 of a workpiece on a base 1, a clamping device 3 is installed on the base 1, and the clamping devices are provided with 5 sets, namely 2 sets at the lower side, one set at the left side, one set at the right side, and 2 sets at the upper side of the bottom plate 2-1, for clamping the corresponding side of the bottom plate 2-1. And corresponding quantity setting is carried out according to the requirement in the actual production process. The structure of the clamping device is shown in figure 3, the clamping device 3 comprises a base I3-1, the base I3-1 is quadrilateral, four vertex angles of the base I are fixedly installed on a base 1 through bolts, a guide post 3-5 is vertically installed at one end of the base I3-1, a pressing plate 3-4 is sleeved on the guide post 3-5, the guide post 3-5 can restrict the movement of the pressing plate 3-4 along the Z direction of the guide post, a screwing device 3-3 is further penetrated through the pressing plate 3-4, the bottom end of the screwing device 3-3 is opposite to the upper surface of the base I3-1, a spring 3-2 is sleeved at the lower end of the screwing device 3-3, and one end of the spring 3-2 abuts against the upper surface of the base I3-1. The screwing device 3-3 can adopt a screw. The clamping device 3 is used for clamping a bottom plate 2-1 of a workpiece, when the bottom plate 2-1 of the workpiece needs to be clamped, the clamping device 3 is arranged on the side edge of the bottom plate 2-1, one end of the pressure plate 3-4 is positioned above the bottom plate 2-1, and the screwing device 3-3 is screwed to enable the pressure plate 3-4 to move downwards along the guide column 3-5 so as to press the bottom plate 2-1.

In order to protect the workpiece from being damaged, a first cushion block 3-6 is movably assembled on the contact surface of the pressure plate 3-4 and the bottom plate, is in contact with the workpiece and can be replaced; the cushion block mainly plays a role in protection, is made of materials softer than steel materials, and is generally made of materials such as polyurethane, nylon and the like. The scratch on the surface of the workpiece can be effectively avoided. After being used for many times, the material can be replaced due to abrasion. The clamping shafts are also provided with spacers, the function of which is the same, as described below. The cushion block can be arranged or not arranged, but is preferably arranged to avoid scratches on the surface of the workpiece.

Referring to fig. 1, in order to fix the bottom plate 2-1, a jacking device 7 for jacking the bottom plate 2-1 is installed above the base 1, a backer 4 for propping against the bottom plate 2-1 is installed below the base 1, and the upper jacking device 7 and the lower backer 4 are matched for use, so that the upper position and the lower position of the bottom plate 2-1 can be fixed, and the workpiece can be limited and clamped in the y direction.

The structure of the jacking device is shown in figure 8, and is used for bearing the jacking of the bottom plate 2-1, and two groups of identical jacking devices 7 are arranged at the upper end of the base 1 in total, as shown in figure 1. The jacking device 7 comprises a second base 7-1, four vertex angles of the second base are fixedly arranged on the base 1 through bolts, the second base is used as a supporting piece of the jacking device, a first clamping shaft 7-2 transversely penetrates through the second base 7-1, and a T-thread pair is arranged on the outer surface of the first clamping shaft 7-2, so that the clamping bottom plate 2-1 can be screwed in effectively. And a second cushion block 7-3 is movably assembled on the end surface of the first clamping shaft 7-2 and is in contact with a workpiece, so that the clamping shaft can be replaced. When the jacking device 7 needs to be jacked into the upper end of the bottom plate 2-1, the jacking device 7 is placed at the upper end of the bottom plate 2-1, and the first clamping shaft 7-2 is screwed in, so that the second cushion block 7-3 at the front end of the first clamping shaft 7-2 is jacked against the bottom plate 2-1. The T-shaped thread has self-locking function. In the whole installation process, impact inevitably occurs to each plate of the workpiece in the positioning process, and frequent vibration exists in the collision and impact processes, so that the vibration can cause the thread pair to be loosened reversely. The T-shaped thread can effectively avoid the phenomenon.

The structure of the backer 4 referring to fig. 1, the backer 4 is used for limiting the movement of the bottom plate 2-1, and two groups of identical backer 4 are arranged at the lower end of the base 1 and are respectively arranged at two top corners of the lower end of the bottom plate.

Referring to fig. 1, in order to fix a bottom plate 2-1 of a workpiece on a base 1, 2 groups of small limiting clamping seats 5 are respectively arranged on two side edges of the bottom plate 2-1 on the base for limiting and clamping the workpiece in the y direction. The specific structure of the small limiting clamping seat is shown in fig. 4, the small limiting clamping seat 5 specifically comprises a base III 5-1, four vertex angles of the base III 5-1 are fixedly installed on the base 1 through bolts, the base III 5-1 is used as a supporting piece of the small limiting clamping seat, and a clamping shaft assembly 5-2, a bottom plate 2-1 for limiting and clamping a workpiece and an outer vertical plate 2-3 transversely penetrate through the base III 5-1. The clamping shaft assembly 5-2 is transversely inserted with a wedge-shaped plate 5-3, and the wedge-shaped plate mainly has the function of ensuring that the clamping shaft assembly does not move left and right so as to realize reliable positioning of a workpiece. When the small limiting clamping seat 5 is used for clamping a workpiece, the small limiting clamping seat 5 is placed on two side edges of the bottom plate, the wedge-shaped plate 5-3 is pressed on the bottom plate 2-1, the end part of the clamping shaft assembly abuts against the outer vertical plate 2-3, the bottom plate 2-1 is pressed and abuts against the outer vertical plate 2-3 at the same time, if the clamping shaft assembly 5-2 moves leftwards, the shaft shoulder is used for limiting, if the clamping shaft assembly 5-2 moves rightwards, the wedge-shaped plate 5-3 is used for limiting.

Structure of the clamping shaft assembly referring to FIG. 5, the clamping shaft assembly 5-2 includes a head block III 5-2-1, a clamping shaft II 5-2-2, and a handle 5-2-3. One end of the second clamping shaft 5-2-2 is provided with a handle 5-2-3 which is used for rotating to drive the second clamping shaft 5-2-2 to rotate, the second clamping shaft 5-2-2 transversely penetrates through the third base 5-1, and an optical axis is matched and connected with the unthreaded hole between the second clamping shaft and the third base. The second clamping shaft 5-2-2 is provided with a wedge hole, a wedge plate 5-3 is arranged in the wedge hole, and the wedge plate 5-3 is tightly matched with the wedge hole through friction force. One end of the second clamping shaft 5-2-2 is provided with a third cushion block 5-2-1 which is used for abutting against the outer vertical plate 2-3 to protect the end face of the second clamping shaft 5-2-2. The length of the clamp shaft assembly is calculated in advance to determine the length. When the outer vertical plate 2-3 is positioned, the second clamping shaft 5-2-2 penetrates through the base, then the wedge-shaped plate 5-3 is installed, and the wedge-shaped plate is close to the outer vertical plate 2-3.

Referring to fig. 1, in order to fix a workpiece on a base 1, main limiting clamping seats 6 are respectively arranged on two side edges of a bottom plate 2-1 on the base and are used for bearing y-direction limiting clamping of two groups of inner vertical plates and two groups of outer vertical plates of the workpiece. As shown in figure 6, the main limiting clamping seat 6 specifically comprises a base seat IV 6-1, four vertex angles of the base seat IV are fixedly installed on the base 1 through bolts, the base seat IV 6-1 serves as a supporting piece of the main limiting clamping seat, a limiting shaft 6-3 is transversely fixed at the upper end of the base seat IV 6-1 through a clamping assembly 6-2, the limiting shaft 6-3 is clamped on the base seat IV 6-1 through the clamping assembly 6-2, and the clamping assembly 6-2 is used for limiting radial movement and axial movement of the limiting shaft 6-3. The limiting shaft 6-3 is sleeved with a bushing 6-4 for compensating errors caused by the inconsistent hole diameters of the shaft neck, the inner vertical plate 2-2 and the outer vertical plate 2-3. A wedge hole is formed in the limiting shaft 6-3, a wedge block 6-5 is installed in the wedge hole, and the wedge block 6-5 is tightly matched with the wedge hole through friction force. The wedge-shaped block 6-5 mainly realizes the limitation of the axial movement of the limiting shaft 6-3, and the clamping component 6-2 performs auxiliary limiting. When the main limiting clamping seat 6 is used for clamping a workpiece, the main limiting clamping seat 6 is placed on two side edges of the bottom plate, the limiting shaft 6-3 penetrates through the circular holes on the outer vertical plate 2-3 and the inner vertical plate 2-2 and is clamped on the middle retainer 9, and the wedge-shaped block 6-5 is pressed tightly, so that the outer vertical plate 2-3 and the inner vertical plate 2-2 are pressed tightly.

The structure of the clamping assembly is shown in fig. 7, the clamping assembly 6-2 comprises a radial pressing plate 6-2-1, a radial spinning device 6-2-3, an axial pressing plate 6-2-5 and an axial spinning device 6-2-6, and the specific implementation manner of the clamping assembly 6-2 for clamping the limiting shaft on the base is as follows: the radial pressing plate 6-2-1 is placed above the limiting shaft 6-3, the right end of the radial pressing plate 6-2-1 is hinged with the base IV 6-1 through a hinge point shaft I6-2-2, the left end of the radial pressing plate 6-2-1 is fixed with the base IV 6-1 through a radial rotary press 6-2-3, and the lower end of the radial rotary press 6-2-3 is hinged with the base IV 6-1 through a hinge point shaft II 6-2-4. The end face of the limiting shaft 6-3 is provided with an axial pressing plate 6-2-5, and the lower end of the axial pressing plate 6-2-5 is fixed with a base IV 6-1 through an axial spinning device 6-2-6. When releasing: and (4) loosening the radial rotary press 6-2-3, and rotating the radial rotary press 6-2-3 leftwards around the second hinge point shaft 6-2-4 to release the left end of the radial press plate 6-2-1. The radial pressing plate 6-2-1 rotates rightwards around the first hinge point shaft 6-2-2 to release the radial limit of the limit shaft 6-3. Then the axial spinning device 6-2-6 is loosened, and the axial pressing plate 6-2-5 is released. After the axial pressing plate 6-2-5 is released, the radial and axial limiting of the limiting shaft 6-3 is released.

Referring to fig. 1, in order to fix a workpiece on a base 1, end retainers 8 are respectively arranged at the ends of an inner vertical plate 2-2 and an outer vertical plate 2-3 on the base and used for limiting the inner span of the inner vertical plate 2-2 and the outer vertical plate 2-3 of the workpiece. The structure of the end retainer 8 is shown in fig. 9, the end retainer 8 comprises an end retainer body 8-1, the end retainer body 8-1 is of an inverted M-shaped structure, two outer side support arms of the end retainer body 8-1 are provided with jacking blocks 8-2, a middle support arm of the end retainer body 8-1 is provided with two cushion blocks four 8-3 matched with the jacking blocks 8-2, the two cushion blocks four 8-3 are arranged back to back, and the jacking blocks 8-2 are matched with the cushion blocks four 8-3 for use. When the inner vertical plate 2-2 and the outer vertical plate 2-3 are clamped by using the retainer, only by taking the end retainer 8 arranged on the right side as an example, the end retainer body 8-1 is placed on the inner vertical plate 2-2 and the outer vertical plate 2-3, the inner vertical plate 2-2 is positioned between the jacking block 8-2 on the left side and the cushion block IV 8-3, the jacking block 8-2 is screwed to clamp the inner vertical plate 2-2 on the left side, the outer vertical plate 2-3 is positioned between the jacking block 8-2 on the right side and the cushion block IV 8-3, and the jacking block 8-2 is screwed to clamp the outer vertical plate 2-3 on the right side, so that the positions of the inner vertical plate 2-2 and the outer vertical plate 2-3 are kept.

Referring to fig. 1, in order to fix a workpiece on a base 1, a middle retainer 9 is arranged between two main limiting clamping seats on the base, and the middle retainer 9 is arranged at the middle position of the base 1, is not in contact with the workpiece and is used for supporting and clamping a limiting shaft 6-3 of the main limiting clamping seat so as to avoid radial movement of the limiting shaft. The structure of the middle retainer is shown in figure 10, the middle retainer 9 comprises a base five 9-1, four vertex angles of the base five 9-1 are fixedly installed on a base 1 through bolts, the base five 9-1 is used as a supporting piece of the middle retainer 9, two V-shaped blocks 9-2 are fixed on the upper end face of the base five 9-1 side by side, a screwing device 9-4 is installed between the two V-shaped blocks 9-2, a pressing block 9-3 is fixed on the screwing device 9-4, and the pressing block 9-3 is opposite to the two V-shaped blocks 9-2. When the middle retainer is used for clamping the limiting shaft 6-3, one ends of the two limiting shafts 6-3 are respectively clamped between the two V-shaped blocks 9-2 and the pressing block 9-3, the screwing device 9-4 is screwed in, and the limiting shaft 6-3 is clamped by the combined action of the pressing block 9-3 and the V-shaped block 9-2, so that radial movement is avoided.

In order to facilitate the movement of the device, slings 10 are mounted at the four corners of the base 1, and the device of the present invention can be moved by lifting the slings 10 with a lifting apparatus.

Correspondingly, the method for assembling the workpiece by applying the assembling device of the structural member for the port mechanical product comprises the following specific processes:

step 1: finding a suitable site, the base 1 is set down by lifting the lifting eye 10 with a lifting apparatus. Adjusting the height of the support legs of the base 1 to enable the upper surface of the base 1 to be horizontal;

step 2: as shown in fig. 11, a backer 4 is inserted into a base 1 in a shape substantially corresponding to a workpiece floor 2-1;

step 3, putting the bottom plate 2-1 in the state;

and 4, putting the jacking device 7 in the state, wherein the state is shown in figure 12.

Step 5, the clamping device 3 is put in the above state, as shown in fig. 13.

And 6, putting the middle retainer 9, the main limiting clamping seat 6, the inner vertical plate 2-2 and the outer vertical plate 2-3 in the above state, wherein the state is shown in figure 14.

Step 7, putting the end retainer 8 and the small limiting clamping seat 5 in the state shown in figure 15;

step 8, placing the rib plates I2-4, the rib plates II 2-5 and the hinge lug plates 2-6 in the state shown in the figure 1;

step 9, overall adjustment and position inspection; the process is an inspection process, and is mainly used for inspecting the relative positions of all the plates in the workpiece 2 and ensuring that the relative positioning size is consistent with the size required by a drawing.

Step 10, splicing and positioning each part: the points are spliced in sequence according to the sequence of the bottom plate 2-1, the inner vertical plate 2-2, the outer vertical plate 2-3, the rib plate I2-4, the rib plate II 2-5 and the hinge lug plate 2-6.

The device provided by the invention is used for clamping a workpiece to assemble the workpiece splicing points, so that the assembling process can be efficiently finished, the deformation problem does not need to be excessively considered in the assembling process, the assembling precision can be effectively guaranteed, and the product efficiency and the assembling quality are improved.

By applying the invention, the phenomena of low assembly precision, poor molding quality and waste of manufacturing procedures can be effectively avoided. The forming quality and the working efficiency of the parts are improved, and the labor intensity is reduced.

The invention has the beneficial effects that: the device has the advantages of simple form, convenient operation, high efficiency, low consumption, low labor intensity of workers and the like. The method for assembling the modules realizes operation modularization and process integration. The device of the invention is only needed to put each plate at the corresponding position to carry out the point splicing and the body assembling. The error is not easy to occur, and the precision of the assembly point of the parts is high.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A device for assembling structural parts for port machinery products is characterized by comprising a base, a workpiece to be assembled is placed on the base,

2. The assembly of structural members for port machinery according to claim 1, wherein said clamping means are provided in 5 sets, respectively 2 sets on the lower side, one set on the left side, one set on the right side, and 2 sets on the upper side of the bottom plate for clamping the corresponding sides of the bottom plate.

3. The assembly of structural members for harbor machinery according to claim 1, wherein a first spacer is movably mounted on the contact surface of the pressure plate and the bottom plate.

4. The assembly device of claim 1, wherein the jacking device comprises a second base, a first clamping shaft transversely penetrates through the second base, and a T-thread pair is arranged on the first clamping shaft.

5. The assembly device of the structural member for the harbor machinery product as claimed in claim 1, wherein the clamping shaft assembly comprises a second clamping shaft, one end of the second clamping shaft is provided with a handle for rotating and driving the second clamping shaft to rotate, the second clamping shaft transversely penetrates through the third base, and an optical axis is matched and connected with the unthreaded hole between the second clamping shaft and the third base; and a wedge hole is formed in the second clamping shaft, a wedge-shaped plate is installed in the wedge hole, and the wedge-shaped plate is tightly matched with the wedge hole through friction force.

6. The assembly device of claim 1, wherein the clamping assembly comprises a radial pressing plate, a radial pressing device, an axial pressing plate and an axial pressing device, the radial pressing plate is disposed above the limiting shaft, the right end of the radial pressing plate is hinged to the fourth base through a first hinge point shaft, the left end of the radial pressing plate is fixed to the fourth base through the radial pressing device, the lower end of the radial pressing device is hinged to the fourth base through a second hinge point shaft, the axial pressing plate is mounted on the end surface of the limiting shaft, and the lower end of the axial pressing plate is fixed to the fourth base through the axial pressing device.

7. The assembly of structural members for harbor machinery according to claim 1, wherein hanging rings are installed at four corners of the base.

8. The method for assembling a structural member for a port machinery product according to any one of claims 1 to 7, wherein the method comprises the following steps: