CN218016730U

CN218016730U - Automatic clamping device for curved beam

Info

Publication number: CN218016730U
Application number: CN202221953974.8U
Authority: CN
Inventors: 李妮; 陈盛鑫; 董峰; 王晓东; 李凌; 陈晨
Original assignee: CRRC Dalian Co Ltd
Current assignee: CRRC Dalian Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-12-13
Anticipated expiration: 2032-07-27

Abstract

The utility model provides a camber beam self-holding device relates to automobile body welding auxiliary assembly technical field, the on-line screen storage device comprises a base, base top symmetry is provided with two pairs of reference columns, be provided with outside movable block between the reference column, outside movable block links to each other with the reference column through first fixed pin and second fixed pin, first fixed pin sets up in second fixed pin upper portion, two the second fixed pin links to each other through inside movable block, be provided with the spring on the inside movable block. And a limiting groove used for limiting the moving position of the external movable block is arranged on the upper surface of the base between the pair of positioning columns. And a clamping block is arranged on the surface of the inner side of the upper part of the external movable block. The utility model discloses the camber beam assembly technique in the past in comparison changes the embedding point of looking for the camber beam to tight step of clamp changes self-holding into by the manual work, simplifies process flow, alleviates personnel's operation.

Description

Automatic clamping device for curved beam

Technical Field

The utility model relates to a car body welding auxiliary assembly technical field especially relates to a camber beam automatic clamping device.

Background

The camber beam is one of important parts in the assembly of urban railway vehicle bodies and ceilings, and the structural characteristics determine that the camber beam must be clamped and shaped in the welding process. The existing camber beam assembling technology mainly comprises two types, one type is to manufacture corresponding fixed chucks according to the overall dimensions of different camber beams, and the clamping of the fixed chuck assembling technology is completely realized by the clearance fit of the grooves on the chucks and the camber beams. Therefore, the requirement on the error of the bent beam is very strict, and the bent beam with small size generates shaking after being embedded, thereby influencing the assembly process flow. The size is bigger then can't imbed the recess, perhaps produces distortion after heavily imbedding, directly influences assembly quality. The edge of the chuck groove is easy to scratch the surface of the camber beam when the camber beam is loaded and taken, scratches are caused, the appearance quality of the assembled product is influenced, and the groove with the fixed width is difficult to take the camber beam. The camber beam is different according to the motorcycle type, and the width all has certain difference, and the fixation clamp is accomplished by laser cutting sheet material, in case the shaping just can not change again. Along with the change of production motorcycle type, only can make corresponding fixed chuck again, and required chuck quantity is hundreds during every motorcycle type production, scrapps and makes again at every turn, all can cause the very big waste of manpower and material resources. The fixed chuck is generally of a single-plate structure, has low strength, and is easy to deform and scrap due to collision and other reasons in use. The single-plate structure determines that the chuck can only be connected to other workpieces by welding or riveting and other fixing methods, and a convenient and technical means for flexible adjustment is lacked after installation.

The second prior art is a camber beam clamping device adjusted by bolts and the like, namely, an assembly technology that three pairs of bolts are arranged on a chuck of a welding structure and the camber beam is clamped and adjusted by adjusting the length of each bolt is adopted. The bolt adjusting type clamping device is usually a welding structural part, the reliability of manufacturing is difficult to guarantee, and when the bolt adjusting type clamping device is manufactured in batches, the defects of assembly distortion, welding defects, thread asymmetry and the like exist, so that the positioning standards between the bent beams are not uniform during production. The exposed thread is not protected, and the thread cannot be screwed due to collision damage or oil stain contamination in the working process, so that the adjusting and clamping function is lost. The welding structure enables the device to be fixed to other workpieces only in a bolt or welding mode, and the device is lack of a convenient and fast technical means for flexible adjustment after installation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a camber beam automatic clamping device has solved the problem that current camber beam clamping device size is single and can't be adjusted in a flexible way.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a camber beam self-holding device, includes the base, base top symmetry is provided with two pairs of reference columns, be provided with outside movable block between the reference column, outside movable block links to each other with the reference column through first fixed pin and second fixed pin, first fixed pin sets up in second fixed pin upper portion, the second fixed pin links to each other two with inside movable block be provided with the spring between the inside movable block.

Furthermore, a limiting groove used for limiting the moving position of the external movable block is formed in the upper surface of the base between the pair of positioning columns.

Furthermore, the front side and the rear side of the positioning column are respectively connected with a protection plate.

Further, a clamping block is arranged on the inner side surface of the upper part of the outer movable block.

Furthermore, the clamping block is fixedly connected with the external movable block through a plurality of bolts penetrating through the external movable block.

Further, the number of the bolts is two.

Furthermore, a groove is arranged on the inner side of the upper part of the external movable block.

Furthermore, the material of the clamping block is nylon or PLA.

Furthermore, the base is provided with a positioning hole, and the lower surface of the base is provided with a sliding rail.

The beneficial effects of the utility model reside in that:

the utility model discloses camber beam assembly technique in the past compares, changes the embedding point of looking for the camber beam to tight step of clamp changes self-holding into by the manual work, simplifies process flow, alleviates personnel's operation.

For avoiding prior art can be at the fish tail of clamping process to the camber beam, the utility model discloses use protection materials such as nylon or PLA with camber beam contact segment to provide convenient change means for protection material part.

The utility model discloses there is the compatibility to the size of camber beam, and the manufacturing of device self has controllable and reliability.

The utility model discloses device self has certain intensity, and movable part and tiny part have reliable safeguard measure.

The utility model discloses with the connection back of other work pieces, remain the convenience technical means of nimble adjustment.

Drawings

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

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is the normal situation schematic diagram of the limiting groove of the present invention.

Fig. 5 is a schematic view of the limit situation of the limit groove of the present invention.

Fig. 6 is a front view of the clamping device of the present invention.

Fig. 7 is a front view of the clamping device of the present invention.

Fig. 8 is a perspective view of the utility model after clamping.

The reference numbers illustrate:

1. a base; 2. an internal movable block; 3. an external movable block; 4. a clamping block; 5. a bolt; 6. a spring; 7. a first fixing pin; 8. a second fixing pin; 9. a positioning column; 10. a limiting groove; 11. a protection plate; 12. beveling; 13. positioning holes; 14. a slide rail.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc., are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be interpreted as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The utility model provides a technical scheme: the utility model provides a camber beam self-holding device, as shown in fig. 1, includes base 1, base 1 top symmetry is provided with two pairs of reference columns 9, be provided with outside movable block 3 between reference column 9, outside movable block 3 links to each other with reference column 9 through first fixed pin 7 and second fixed pin 7, first fixed pin 7 sets up in second fixed pin 7 upper portion, second fixed pin 7 links to each other two with inside movable block 2 be provided with spring 6 between inside movable block 2. A limiting groove 10 for limiting the moving position of the external movable block 3 is arranged on the upper surface of the base 1 between the pair of positioning columns 9. The front side and the rear side of the positioning column 9 are respectively connected with a protection plate 11. And a clamping block 4 is arranged on the inner side surface of the upper part of the outer movable block 3. The clamping block 4 is fixedly connected with the external movable block 3 through a plurality of bolts 5 penetrating through the external movable block 3. The inner side of the upper part of the external movable block 3 is provided with a groove 12. The clamping block 4 is made of nylon or PLA. The base 1 is provided with a positioning hole 13, and the lower surface of the base 1 is provided with a slide rail 14.

Base 1 is the installation basis of outside movable block 3, and inside is hollow, and hollow part is cylindrical for provide the guide effect for inside movable block 2 and spring 6, wrap up it simultaneously and provide reliable protection, compare with prior art, this structure can obviously improve the tightness of device. Base 1 the latter half design has spacing groove 10, is packing into the back with first fixed pin 7, under spacing groove 10's effect, just can restrict the scope activity of the shrink of outside movable block 3 to prevent the excess of the tight dynamics of clamp, be used for cooperating first fixed pin 7 to pin outside movable block 3 simultaneously. Compared with the prior art, the clamping force is controllable, and excessive manual operation is not needed during clamping operation. The second fixing pin 7 fixes the outer movable block 3 and the inner movable block 2 and also functions as a shaft. The external movable block 3 is clamped to the limiting groove 10 and locked by the force of the spring 6, so that the whole device becomes a stable whole. The reliability of the device assembly is improved compared to the prior art. Press from both sides tight piece 4 and be connected with outside movable block 3 through bolt 5, as the part with the camber beam contact, the groove 12 of top can help operating personnel's embedding point of more easy alignment camber beam, press from both sides tight piece and adopt protective material preparation such as nylon or PLA, can avoid the fish tail camber beam that prior art exists etc. to influence appearance quality's problem to through the detachable design, reach only need to change the tight piece of different shapes clamp, the purpose of the special camber beam of alright adaptation shape. The slide rail 14 and the locating hole 13 of general national standard type T type groove are arranged below the base 1, and can be actively connected with other workpieces or standard sectional materials, so that the convenient technical means that the device which cannot be achieved in the prior art can be flexibly adjusted at any time after being installed can be realized.

In the whole working process, when the device is not placed into the camber beam, the spring 6 arranged in the base 1 is in a static state, the tension is transmitted to the outer movable blocks 3 on the two sides of the device through the inner movable blocks 2 to realize left and right contraction, and the angle of the groove 12 of the clamping block 4 plays a role in guiding the installation of the camber beam during contraction.

When the device is installed in the curved beam, the external movable block 3 is driven to expand towards two sides under the action of the curved beam, and the tension is transmitted to the spring 6 from the internal movable block 2 to enable the spring to be in a compressed state, so that the fixed and automatic clamping effect on the curved beam is realized.

After the assembly work is finished, the bent beam can be directly taken down, the external movable block 3 contracts, the spring 6 restores to a static state, and extra manual operation is not needed.

If the method replaces the prior art, the assembly quality and the assembly speed of the urban railway vehicle ceiling camber beam are greatly improved, compared with the prior art, the assembly time of the method for the single camber beam can be reduced from 60 seconds to about 15 seconds, a train is provided with 400 camber beams, the labor hour can be saved by 3 hours, the cost is reduced by about 300 yuan, and the labor hour can be saved by 1200 hours according to 400 trains every year. Reduce this by 12 ten thousand yuan. The utility model discloses can not produce the fish tail to the work piece, cause extra loss. The utility model discloses the commonality is high, can the multiple size work piece of adaptation, reduces the follow-up input that is used for the adjustment of frock.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a camber beam self-holding device, its characterized in that, includes base (1), base (1) top symmetry is provided with two pairs of reference columns (9), be provided with outside movable block (3) between reference column (9), outside movable block (3) link to each other with reference column (9) through first fixed pin (7) and second fixed pin (8), first fixed pin (7) set up in second fixed pin (8) upper portion, second fixed pin (8) link to each other two with inside movable block (2) be provided with spring (6) between inside movable block (2).

2. The automatic clamping device for a bending beam according to claim 1, wherein: and a limiting groove (10) used for limiting the moving position of the external moving block (3) is formed in the upper surface of the base (1) between the pair of positioning columns (9).

3. The automatic clamping device for a bending beam according to claim 1, wherein: the front side and the rear side of the positioning column (9) are respectively connected with a protection plate (11).

4. The automatic clamping device for a bending beam according to claim 1, wherein: and a clamping block (4) is arranged on the inner side surface of the upper part of the outer movable block (3).

5. The automatic clamping device for a bending beam according to claim 4, wherein: the clamping blocks (4) are fixedly connected with the external movable block (3) through a plurality of bolts (5) penetrating through the external movable block (3).

6. The automatic clamping device for a bending beam according to claim 5, wherein: the number of the bolts (5) is two.

7. The automatic clamping device for a bending beam according to claim 1, wherein: and a groove (12) is arranged on the inner side of the upper part of the external movable block (3).

8. The automatic clamping device for a bending beam according to claim 4, wherein: the clamping block (4) is made of nylon or PLA.

9. The automatic clamping device for a bending beam according to claim 1, wherein: the positioning device is characterized in that a positioning hole (13) is formed in the base (1), and a sliding rail (14) is arranged on the lower surface of the base (1).