CN207119925U - Longitudinal merogenesis arc Men Menye transversal sectionals splice positioner - Google Patents

Abstract

The utility model discloses a horizontally segmented splicing and positioning device for door leaves of a longitudinally sectional arc door, which relates to the technical field of manufacturing super-large and super-heavy longitudinally sectional arc door leaves. The utility model comprises a splicing platform, several horizontal supports, a clamping mechanism and a splicing reinforcement; several vertical supports are fixed on the splicing platform, the lengths of the vertical supports are different, and the vertices of the several vertical supports are along the bottom of the workpiece. arc distribution; the transverse support is used for axial fixing of the workpiece, and the clamping mechanism is arranged at both ends of the transverse support for fixing between the transverse support and the side of the workpiece; The supports are fixed at the joints of the workpieces. The positioning device of the utility model can effectively guarantee the machining accuracy, avoid the reduction of the radius of curvature during welding, and prevent the deformation of the workpiece.

Description

Longitudinal sectional arc door door leaf transverse segment splicing positioning device

technical field

The utility model relates to the technical field of super-large and super-heavy vertical section arc door leaf manufacturing, and more specifically relates to a longitudinal section arc door leaf transverse segment splicing and positioning device.

Background technique

At present, most of the processing of large-scale arc door leaves is processed in sections. For example, the 11 sets of arc doors at the bottom of the main dam in Guangxi Datengxia Project have an outer edge radius of 33 meters and a maximum arc length of 22.16 meters. , 9 meters wide. The total weight is 254 tons per set. Since the door leaf structure of the arc door adopts the method of vertical section connection, the arc length of the panel of each door leaf reaches 22.16 meters. The heaviest section of the three-section door leaf reaches 97 tons, and the lightest section also reaches more than 60 tons. In the factory's production workshop, the maximum lifting capacity of the bridge crane is 50 tons, which cannot meet the lifting requirements of a single longitudinal section door leaf weighing 97 tons. The lifting requirements can be met by making each section of the longitudinal door leaf horizontally segmented. Furthermore, it lies in the processing capacity of the manufacturing plant. Since the entire arc surface needs to be processed, limited by the processing equipment of the manufacturing plant, the number of large-scale processing equipment is limited. The arc surface processing with an arc length of 22.16 meters has higher requirements for equipment. After the door leaf is horizontally segmented, more machine tools are suitable for the door. Arc surface processing meets the processing requirements of batch arc surfaces. And shorten the manufacturing cycle, improve economic efficiency.

Since the lifting equipment and processing equipment cannot meet the production needs of super-large and super-heavy workpieces, segmental processing is adopted. After the segmental processing is completed, the segments are welded together to form a whole workpiece after welding. However, at the welding section, due to welding shrinkage, the radius of curvature after the seam welding is completed will have a tendency to shrink, and after welding, the overall workpiece will also be deformed to a certain extent, which cannot meet the processing requirements and cannot guarantee processing. precision.

On November 30, 2011, the State Intellectual Property Office published a utility model patent with the publication number CN202053085U titled "A Special Fixture for Lathe Segmented Arc Surface Processing". This utility model patent mainly solves the problems of existing lathes A technical problem that cannot process segmented arcs. The technical solution of the utility model is: a special fixture for lathe segmented arc surface processing, including a processing bracket, a flat splint and a semicircular fixed splint. The processing bracket includes two flat splints, and a columnar connecting seat is fixed between the flat splints. The middle part of the fixed columnar connection seat is fixed with a lathe chuck clamping block, and the outer center of the flat splint is provided with a screw connection head, and the two ends of the flat splint are provided with bolt holes; the middle of the semicircular fixed splint is opened with a round hole for the screw connection head to pass through , There are fixed connection bolt holes corresponding to the bolt holes of the flat splint at both ends, the semicircular fixed splint is sleeved on the screw connection head, and the flat splint is installed outside and fixed with bolts through the bolt holes. The fixture can process radians on any irregular material.

The above-mentioned prior art can only solve the problem of segmental machining of the arc surface of the workpiece, but cannot solve the problem of changing the radius of curvature when the segments are welded together after the segmental processing is completed. Welding shrinkage, the radius of curvature after seam welding is completed will have a tendency to shrink, and after welding, the overall workpiece will also be deformed to a certain extent, which cannot meet the processing requirements and cannot guarantee processing accuracy.

Utility model content

In order to overcome the defects and deficiencies in the above-mentioned prior art, the utility model provides a longitudinally sectional arc door leaf transverse segment splicing and positioning device. In order to solve the problem of shrinking radius of curvature and deformation of workpiece caused by welding, the positioning device of the utility model can effectively ensure processing accuracy, avoid shrinking radius of curvature during welding, and prevent workpiece deformation.

In order to solve the problems in the above-mentioned prior art, the utility model is achieved through the following technical solutions:

The horizontal segment splicing and positioning device for longitudinally sectional arc door leaves is characterized in that it includes a splicing platform, several transverse supports, clamping mechanisms and splicing reinforcements; several vertical supports and oblique Supports, the vertical supports are distributed on the splicing platform, one end of the diagonal supports is fixed on the vertical support, and the other end is fixed on the splicing platform; the lengths of the several vertical supports are different, and several vertical supports The apex of the support is distributed along the arc at the bottom of the workpiece; the transverse support is used for axial fixing of the workpiece, the transverse support is arranged above the splicing platform, the transverse support is arranged along the axial direction of the workpiece, and several The transverse supports are distributed along the circumference of the workpiece; the clamping mechanisms are arranged at both ends of the transverse supports for fixing between the transverse supports and the sides of the workpiece; the splicing reinforcements are fixed at the joints of the workpieces through the transverse supports.

The clamping mechanism includes a pressing plate and a screw rod, one end of the screw rod is welded on the transverse support, and the pressing plate is fixed on the other end of the screw rod through a nut.

Several longitudinal reinforcing plates are arranged on the transverse support.

The splicing reinforcement includes a splicing reinforcement plate, and the splicing reinforcement plate is provided with a plurality of reinforcing ribs arranged in parallel along the radial direction of the workpiece.

Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:

1. The positioning device of the utility model can effectively ensure the machining accuracy, avoid the reduction of the radius of curvature during welding, and prevent the deformation of the workpiece. The vertical support of the utility model is used to support the workpiece, and the vertices of each vertical support are connected to form an arc surface matching the shape of the workpiece, which can play a very good role in fixing, and can also play a very good The supporting function ensures the uniformity of the splicing of two sections of workpieces. The oblique support provides support for the vertical support, strengthens the support strength of the vertical support, reinforces the vertical support, and ensures the stability of the vertical support. The function of the transverse support is to fix the workpiece along the axial direction of the workpiece, prevent the axial deformation of the workpiece, facilitate welding, and prevent the deformation of the workpiece in the axial direction during the welding process. The role of the splicing reinforcement is to further strengthen the connection between the two sections of the workpiece, which can effectively prevent welding deformation when the workpiece is welded in sections, and ensure the accuracy of the radius of curvature of the weld.

2. Through the application of the positioning device of the utility model in the factory, the deformation of the workpiece during welding is effectively prevented. Through the application of the positioning device of the utility model in the factory, the arc door of the main dam bottom hole of Guangxi Datangxia Project has reached the technical requirement of the panel outer edge curvature radius of 33 meters plus or minus 2 millimeters proposed in the drawings. When the door leaf and the support arm of the arc door are assembled, the technical requirement that the gap between the door leaf and the support arm is not greater than 0.3 mm is met. In the stand-up state, the overall dimension of the door leaf with a width of 9 meters and an arc length of 22.16 meters is twisted by 1.5 mm (the drawing design requirement is 2 mm), which meets the technical specification requirements. The application of the positioning device of the utility model greatly shortens the production cycle of the product, saves the production cost, and creates huge economic benefits for the enterprise.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic view of the structure of the utility model;

Fig. 3 is a structural schematic diagram of the clamping mechanism of the present invention;

Fig. 4 is a structural schematic diagram of the splicing reinforcement of the utility model;

Reference signs: 1, splicing platform, 2, horizontal support, 3, clamping mechanism, 4, splicing reinforcement, 5, vertical support, 6, oblique support, 7, workpiece, 8, pressure plate, 9 , screw rod, 10, longitudinal reinforcing plate, 11, splicing reinforcing plate, 12, reinforcing rib.

Detailed ways

Example 1

As a preferred embodiment of the present invention, with reference to accompanying drawings 1-4 of the description, this embodiment discloses:

The horizontal segment splicing and positioning device for longitudinally sectional arc door leaves includes a splicing platform 1, a number of transverse supports 2, a clamping mechanism 3 and a splicing reinforcement 4; several vertical supports 5 and 5 are fixed on the splicing platform 1 Diagonal support 6, the vertical support 5 is distributed on the splicing platform 1, one end of the oblique support 6 is fixed on the vertical support 5, and the other end is fixed on the splicing platform 1; The lengths of the vertical supports 5 are different, and the vertices of several vertical supports 5 are distributed along the arc at the bottom of the workpiece 7; , the transverse support 2 is arranged along the axial direction of the workpiece 7, and several transverse supports 2 are distributed along the circumference of the workpiece 7; the clamping mechanism 3 is arranged at both ends of the transverse support 2 for the transverse support 2 and the workpiece 7 Fixing between sides; the splicing reinforcement 4 is fixed at the splicing place of the workpiece 7 through the transverse support 2 .

Example 2

As another preferred embodiment of the present utility model, with reference to accompanying drawings 1-4 of the description, this embodiment discloses:

The horizontal segment splicing and positioning device for longitudinally sectional arc door leaves includes a splicing platform 1, a number of transverse supports 2, a clamping mechanism 3 and a splicing reinforcement 4; several vertical supports 5 and 5 are fixed on the splicing platform 1 Diagonal support 6, the vertical support 5 is distributed on the splicing platform 1, one end of the oblique support 6 is fixed on the vertical support 5, and the other end is fixed on the splicing platform 1; The lengths of the vertical supports 5 are different, and the vertices of several vertical supports 5 are distributed along the arc at the bottom of the workpiece 7; , the transverse support 2 is arranged along the axial direction of the workpiece 7, and several transverse supports 2 are distributed along the circumference of the workpiece 7; the clamping mechanism 3 is arranged at both ends of the transverse support 2 for the transverse support 2 and the workpiece 7. Fixation between the sides; the splicing reinforcement 4 is fixed at the joint of the workpiece 7 through the transverse support 2; the clamping mechanism 3 includes a pressure plate 8 and a screw 9, and one end of the screw 9 is welded on the transverse support 2 , the pressing plate 8 is fixed on the other end of the screw rod 9 by a nut.

Example 3

As another preferred embodiment of the present utility model, with reference to accompanying drawings 1-4 of the description, this embodiment discloses:

The horizontal segment splicing and positioning device for longitudinally sectional arc door leaves includes a splicing platform 1, a number of transverse supports 2, a clamping mechanism 3 and a splicing reinforcement 4; several vertical supports 5 and 5 are fixed on the splicing platform 1 Diagonal support 6, the vertical support 5 is distributed on the splicing platform 1, one end of the oblique support 6 is fixed on the vertical support 5, and the other end is fixed on the splicing platform 1; The lengths of the vertical supports 5 are different, and the vertices of several vertical supports 5 are distributed along the arc at the bottom of the workpiece 7; , the transverse support 2 is arranged along the axial direction of the workpiece 7, and several transverse supports 2 are distributed along the circumference of the workpiece 7; the clamping mechanism 3 is arranged at both ends of the transverse support 2 for the transverse support 2 and the workpiece 7. Fixation between the sides; the splicing reinforcement 4 is fixed at the joint of the workpiece 7 through the transverse support 2; the clamping mechanism 3 includes a pressure plate 8 and a screw 9, and one end of the screw 9 is welded on the transverse support 2 , the pressing plate 8 is fixed on the other end of the screw rod 9 by a nut; several longitudinal reinforcing plates 10 are arranged on the lateral support 2; the splicing reinforcing member 4 includes a splicing reinforcing plate 11, There are several reinforcing ribs 12 arranged in parallel along the radial direction of the workpiece 7 .

Claims (4)

1. The horizontal segment splicing and positioning device for longitudinally sectional arc door leaves is characterized in that it includes a splicing platform (1), several transverse supports (2), a clamping mechanism (3) and a splicing reinforcement (4); Several vertical supports (5) and oblique supports (6) are fixed on the splicing platform (1), and the vertical supports (5) are distributed on the splicing platform (1), and the oblique supports (6) One end is fixed on the vertical support (5), and the other end is fixed on the splicing platform (1); Arc distribution at the bottom of the workpiece (7); the transverse support (2) is used for axial fixing of the workpiece (7), the transverse support (2) is arranged above the splicing platform (1), and the transverse support (2) arranged along the axial direction of the workpiece (7), and several transverse supports (2) are distributed along the circumference of the workpiece (7); the clamping mechanism (3) is arranged at both ends of the transverse support (2), for Fixation between the lateral support (2) and the side of the workpiece (7); the splicing reinforcement (4) is fixed at the joint of the workpiece (7) through the lateral support (2). 2. The horizontally segmented splicing and positioning device for longitudinally sectional arc door leaves according to claim 1, characterized in that: the clamping mechanism (3) includes a pressing plate (8) and a screw (9), the screw (9) One end of it is welded on the transverse support (2), and the pressure plate (8) is fixed on the other end of the screw rod (9) by a nut. 3. The horizontally segmented splicing and positioning device for longitudinally sectional arc door leaves according to claim 1 or 2, characterized in that several longitudinal reinforcement plates (10) are arranged on the lateral support (2). 4. The horizontally segmented splicing and positioning device for longitudinally sectional arc door leaves according to claim 1 or 2, characterized in that: the splicing reinforcement (4) includes a splicing reinforcing plate (11), and the splicing reinforcing plate (11) is provided with a plurality of reinforcing ribs (12) arranged in parallel along the radial direction of the workpiece (7).