CN219074883U - Flexible rail capable of being suspended and fixed - Google Patents

Abstract

The utility model discloses a flexible rail capable of being fixed in a suspended manner in the field of automatic hole making equipment, which comprises a rail main body and vacuum chucks arranged below the rail main body, wherein the vacuum chucks are connected with the rail main body through a connecting frame, front connecting ends and rear connecting ends are respectively arranged at the front end and the rear end of the connecting frame along the extending direction of the rail, and the rear connecting ends of the connecting frames on the two vacuum chucks adjacent to each other in front and rear can be matched and butted with the front connecting ends and can be fixed together through connecting pieces. At the starting point and the end point of the track, the flexible track can be extended out of the workpiece, and the suspended connecting frame is fixed, so that rigid connection is formed, and the hole making equipment can be moved to the suspended section to make holes for the hole making dead zone. In addition, under the condition that a groove or a notch is formed in the middle of the workpiece, the connecting frame above the groove or the notch can be rigidly connected, so that the stability and the hole making precision of the hole making equipment are not affected when the hole making equipment moves above the groove or the notch.

Description

Flexible rail capable of being suspended and fixed

Technical Field

The utility model relates to the field of automatic hole making equipment, in particular to a flexible track capable of being fixed in a suspended manner.

Background

In the assembly process of large-sized products with irregular surfaces such as airplanes and ships, automatic hole making, welding and other operations are often required by utilizing an industrial robot. The specific mode is mainly that one or more flexible tracks are paved on the surface of the machine body, then the industrial robot is placed on the flexible tracks, the industrial robot moves along the flexible tracks, and corresponding hole making or welding operation is completed.

The current flexible track mainly comprises three parts, namely a track main body, a vacuum chuck and a vacuum source, wherein the track main body is formed by taking a flat and strip-shaped spring steel track as a main body, and a plurality of vacuum chucks connected with the vacuum source are connected below the track. When in operation, the sucker can be adsorbed on the workpiece, and the rail main body can generate corresponding bending along with the appearance of the workpiece.

The bottom of the automatic hole making equipment is provided with a plurality of groups of V-shaped rollers, the V-shaped rollers can be clamped at two sides of the flexible track, the rollers can roll on the flexible track, and meanwhile, the equipment is driven to move along the track. The V-roller is typically disposed on the outermost side of the apparatus and the hole making spindle of the apparatus is typically disposed in the center of the apparatus. Typically, the equipment hole making spindle is positioned at a distance of hundreds of millimeters from the outermost side of the equipment, and this area is generally called the hole making blind area of the equipment. The existing track is required to be adsorbed on a workpiece through a sucker, and the suspended track cannot be used because of lack of rigidity, which can influence the hole making quality of the equipment. The V-roller must also be on the track for the device to function properly. This causes the hole making spindle to be unable to reach the hole making blind areas at the two ends of the track for hole making. In addition, if part of the rail is suspended (a groove or a notch is formed in a workpiece below), other methods are needed to be adopted according to the situation to temporarily fill, otherwise, the equipment passes through or nearby hole making, and the risks of safety and unqualified hole making quality exist.

Disclosure of Invention

In order to overcome the defects that the existing flexible track cannot meet the requirement of hole making equipment in Kong Mangou and hole making at suspended parts, the utility model aims to solve the technical problems that: a flexible rail capable of being suspended and fixed, which can be kept rigid in a partially suspended state, is provided.

The technical scheme adopted for solving the technical problems is as follows:

the flexible track capable of being fixed in a suspended manner comprises a track main body and vacuum chucks arranged below the track main body, wherein the vacuum chucks are connected with the track main body through a connecting frame, front connecting ends and rear connecting ends are respectively arranged at the front end and the rear end of the connecting frame along the extending direction of the track, and the rear connecting ends of the connecting frames on the two front and rear adjacent vacuum chucks can be matched and butted with the front connecting ends and can be fixed together through connecting pieces. When the flexible track is paved, the connecting piece can not be inserted into the vacuum chuck with the middle part contacted with the workpiece, so that the track main body can bend along with the surface of the workpiece. At the starting point and the end point of the track, the part with a hole making blind area exists, the flexible track can be extended out of the workpiece, and then the suspended connecting frames are connected together by the connecting piece, so that rigid connection is formed, the rigidity of the suspended track main body is increased, and the hole making equipment can be moved to the suspended section, so that the hole making operation of the hole making blind area is realized. In addition, under the condition that a groove or a notch is formed in the middle of the workpiece, the connecting frame above the groove or the notch can be rigidly connected, so that the stability and the hole making precision of the hole making equipment are not affected when the hole making equipment moves above the groove or the notch.

For the specific structure of the front connecting end and the rear connecting end, the utility model preferably uses the connecting lug plates as the front connecting end and the rear connecting end, through holes are arranged on the connecting lug plates, when the track main body is in a straight state, the rear connecting ends on the connecting frames on the two adjacent vacuum sucking discs are attached to the side surfaces of the front connecting end, and the through holes on the connecting lug plates are aligned. The connecting lug plate is adopted as the connecting end, so that the structure is simple, the manufacture and the processing are convenient, and the precision is easy to ensure. Because the flexible track is usually assembled in a straight state, the installation and the positioning of each part are better realized, and the through holes on the connecting lug plates can be aligned when the track main body is in a completely straight state, so that the track main body of the suspended section is in a straight state, and the movement of the hole making equipment is convenient and the stability of the hole making equipment is ensured.

For the specific structure of the connector, the present application provides two schemes:

the connecting piece is a bolt which can be accurately matched with the through hole, the bolt is simple in structure, but poor in stability, easy to loose and fall off, and independent parts are inconvenient to store.

The other is that the connecting piece is a locking plug, the locking plug comprises a fixed sleeve and a plug, the plug is inserted into the fixed sleeve in a sliding and rotatable manner, a clamping groove is formed in the top of the fixed sleeve, a cap is arranged at the top of the plug, a protruding block capable of being inserted into the clamping groove is arranged at the lower end of the cap, and a spring is arranged between the middle of the plug and the fixed sleeve; the lower end of the fixed sleeve is fixed on the side face of the front connecting end or the rear connecting end, which is close to the outer side of the track main body, when the protruding block is positioned in the clamping groove, the lower end of the plug column can extend out of the lower end of the fixed sleeve under the action of the spring and is inserted into the through holes of the front connecting end and the rear connecting end, and when the protruding block moves out of the clamping groove, the plug column is retracted into the fixed sleeve. The locking plug is used in the process that when the connecting frame is required to be fixed, the lug pair Ji Kacao is inserted, the lower end of the plug is inserted into the through holes of the front connecting end and the rear connecting end under the action of the spring, and the locking plug plays a role in locking and fixing; when the fixed connection frame is not needed, the column cap can be pulled outwards to enable the protruding block to move out of the clamping groove, then the column cap is rotated for a certain angle, the protruding block cannot be inserted into the clamping groove, the lower end of the plug is retracted into the fixed sleeve, and meanwhile the plug is kept stable under the action of the spring. Therefore, the connecting piece is prevented from being separated from the whole flexible track, the operation and the management are convenient, and the installation and adjustment efficiency is improved.

In order to facilitate positioning and fixing the connecting piece, the lower end of the fixing sleeve extends into a through hole on the front connecting end or the rear connecting end close to the outer side of the track main body for fixing, and the end part of the fixing sleeve does not exceed the other side of the connecting lug plate.

The concrete mounting mode of fixed sleeve and connection otic placode can adopt welding or interference fit etc. this application is preferred, and the through-hole on the front junction end or the back junction end that are close to the track main part outside is the screw hole, fixed sleeve's lower extreme is equipped with the external screw thread and with screw hole threaded connection, be equipped with lock nut on the external screw thread. The lock nut can ensure the connection reliability of the fixed sleeve and the connecting lug plate, and can be well detached and replaced if the plug is worn.

In the long-term use, certainly can appear the wearing and tearing of different degree between plug and the connection otic placode, and the connecting piece is changed easily, but the connection frame is changed just more troublesome, so in order to reduce cost, be equipped with the locking bush in the through-hole on the front connection end or the rear connection end that are close to the track main part inboard, be equipped with on the locking bush with the accurate bush hole that matches of plug lower extreme. If the locking bush is worn, the locking bush can be directly replaced without disassembling the connecting frame, so that the cost is saved, the replacement efficiency is improved, and the equipment precision is ensured.

When not fixing the connection frame, the elastic force of the spring is overcome through the support of lug and fixed sleeve top to the cap, consequently, in order to make the atress balanced, draw-in groove and lug are two at least, and follow fixed sleeve and the axis rotational symmetry setting of cock stem respectively.

Further, two front connecting ends and two rear connecting ends are respectively arranged at the front end and the rear end of the connecting frame, and are symmetrically arranged along the axis of the track main body respectively, and connecting pieces are respectively arranged between the two front connecting ends and the two rear connecting ends of the two adjacent connecting frames. The two connecting ends are fixedly connected, so that the reliability of connection between adjacent connecting frames can be improved, the rigidity of the track main body is increased, and the track main body is prevented from being twisted and the like.

The stability of connecting before track main part, connection frame and vacuum chuck is the prerequisite of guaranteeing that the track main part can unsettled setting. Therefore, a plurality of fixing holes are formed in the periphery of the connecting frame, a hollow structure for installing the vacuum generator and the pneumatic pipeline is arranged in the middle of the connecting frame, a plurality of support columns are arranged on the vacuum chuck, and the support columns penetrate through the fixing holes and then are connected with the track main body, and the connecting frame is fixed between the vacuum chuck and the track main body.

The beneficial effects of the utility model are as follows: through setting up front connection end and rear connection end on the linking frame to available connecting piece is fixed to both, has both satisfied the requirement of ordinary flexible track to flexibility, can increase the rigidity of track main part through fixed connection frame again, makes its extensible outside the work piece or stride recess and breach etc. on the work piece, realizes unsettled arrangement, thereby satisfies the hole making operation of hole making equipment to the hole making blind area, also can guarantee that hole making equipment also does not influence its stability and hole making precision when removing recess or breach top. In addition, the locking plug is used as a connecting piece to be inserted in the through hole of the adjacent connecting frame to fix the connecting frame, so that the connecting piece is prevented from being separated from the whole flexible track, the operation and the management are convenient, and the installation and adjustment efficiency is improved. Meanwhile, the whole flexible track has high integration, small required space, small overall added weight and lower cost.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is a diagram of the operation of the locking plug of the present utility model;

the drawing shows 1-track body, 2-vacuum chuck, 3-connection frame, 4-connection piece, 5-vacuum generator, 21-support column, 31-front connection end, 32-rear connection end, 33-through hole, 34-locking bush, 35-fixing hole, 41-fixing sleeve, 42-plug, 43-clamping groove, 44-cap, 45-bump, 46-spring, 47-locking nut.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the flexible track capable of being fixed in a suspended manner comprises a track main body 1 and vacuum chucks 2 arranged below the track main body 1, wherein the vacuum chucks 2 are connected with the track main body 1 through a connecting frame 3, front connecting ends 31 and rear connecting ends 32 are respectively arranged at the front end and the rear end of the connecting frame 3 along the extending direction of the track, and the rear connecting ends 32 on the connecting frame 3 of the two vacuum chucks 2 adjacent in front and rear can be matched and butted with the front connecting ends 31 and can be fixed together through connecting pieces 4. When the flexible track is laid, the track main body 1 can bend along with the curvature of the surface of the workpiece, and the distance between the vacuum suction cups below can change along with the curvature, so that when the connecting piece 4 is not installed, the front connecting end 31 and the rear connecting end 32 are movably connected, and the flexibility of the track main body 1 can be ensured similar to that of a common flexible track.

For the starting point and the end point of the track, the positions with hole making dead zones exist, the flexible track can be extended to the outside of the workpiece, then the suspended connecting frames 3 are connected together by the connecting piece 4 to form rigid connection, and according to practical conditions, the moment can be balanced by additionally fixing a plurality of connecting frames 3 adjacent to the end part of the workpiece, so that the rigidity of the suspended track main body 1 is increased, and the hole making equipment can be moved to the suspended section and kept stable, so that the hole making operation of the hole making dead zones is realized. In addition, under the condition that a groove or a notch is formed in the middle of the workpiece, the connecting frame 3 above the groove or the notch can be only rigidly connected, so that the stability and the hole making precision of the hole making equipment are not affected when the hole making equipment moves above the groove or the notch.

For the specific structure of the front connection end and the rear connection end, it is preferable that the front connection end 31 and the rear connection end 32 are both connection lugs, through holes 33 are formed on the connection lugs, when the track main body 1 is in a straight state, the rear connection ends 32 on the connection frames 3 on the two adjacent vacuum chucks 2 are attached to the side surfaces of the front connection end 31, and the through holes 33 on the connection lugs are aligned. The connecting lug plate is adopted as the connecting end, so that the structure is simple, the manufacture and the processing are convenient, and the precision is easy to ensure. The two adjacent front and rear connecting lugs are attached together on the sides, the front connecting end 31 can be located on the outer side of the track main body 1, the rear connecting end 32 can be located on the inner side of the track main body 1, and the opposite arrangement can be adopted. Because the flexible track is usually assembled in a straight state, the installation and positioning of each component are better realized, and the through holes on the connecting lug plates can be aligned when the track main body 1 is in a completely straight state, so that the track main body 1 of the suspended section is in a straight state, and the movement of the hole making equipment is convenient and the stability of the hole making equipment is ensured. In addition, the relative positions of the through holes 33 on the two connecting ear plates should have enough precision, so as to avoid the condition that the connecting piece 4 cannot be inserted or the adjacent connecting frames 3 are loose after being connected.

For the specific structure of the connector, the present application provides two schemes:

one is that the connecting piece 4 is a pin which can be precisely matched with the through hole 33. The bolt is simple in structure, but stability is deficient, loosening and falling off are easy to occur, and independent parts are inconvenient to store.

Preferably, the connecting piece 4 is a locking plug, the locking plug comprises a fixed sleeve 41 and a plug 42, the plug 42 is slidably and rotatably inserted in the fixed sleeve 41, a clamping groove 43 is formed at the top of the fixed sleeve 41, a cap 44 is formed at the top of the plug 42, a bump 45 capable of being inserted into the clamping groove 43 is formed at the lower end of the cap 44, and a spring 46 is arranged between the middle of the plug 42 and the fixed sleeve 41; the lower end of the fixed sleeve 41 is fixed on the side surface of the front connection end 31 or the rear connection end 32 near the outer side of the track main body 1, when the protruding block 45 is positioned in the clamping groove 43, the lower end of the plug 42 can extend out of the lower end of the fixed sleeve 41 under the action of the spring 46 and be inserted into the through holes 33 of the front connection end 31 and the rear connection end 32, and when the protruding block 45 moves out of the clamping groove 43, the plug 42 is retracted into the fixed sleeve 41. Since the front connection end 31 and the rear connection end 32 have two overlapping modes, a locking plug is provided on the side of the front connection end 31 or the rear connection end 32 located outside the track body 1 for convenience of operation.

The use process of the locking plug is shown in fig. 3: when the connecting frame 3 needs to be fixed, the convex blocks 45 are inserted into the Ji Kacao pairs, and the lower ends of the plugs 42 are inserted into the through holes 33 of the front connecting end 31 and the rear connecting end 32 under the action of the springs 46, so that locking and fixing effects are achieved; when the connecting frame 3 is not required to be fixed, the post cap 44 can be pulled outwards to enable the protruding block 45 to move out of the clamping groove 43, then the post cap 44 is rotated for a certain angle, so that the protruding block 45 cannot be inserted into the clamping groove 43, the lower end of the plug 42 is retracted into the fixing sleeve 41, and meanwhile, the plug is kept stable under the action of the spring 46. Therefore, the connecting piece 4 is prevented from being separated from the whole flexible track, the operation and the management are convenient, and the installation and adjustment efficiency is improved.

For positioning and fixing the connecting piece 4 conveniently, the lower end of the fixing sleeve 41 extends into the through hole 33 on the front connecting end 31 or the rear connecting end 32 near the outer side of the track main body 1 for fixing, and the end of the fixing sleeve does not exceed the other side of the connecting lug plate. The fixing sleeve 41 extends into the through hole 33, so that coaxiality of the plug 42 and the through hole 33 can be ensured, and the plug can be conveniently and smoothly inserted into the through hole 33 of the other connecting lug plate.

The specific installation mode of the fixing sleeve 41 and the connecting lug plate can adopt welding or interference fit, etc., in the application, it is preferable to set the through hole 33 on the front connecting end 31 or the rear connecting end 32 close to the outer side of the track main body 1 as a threaded hole, the lower end of the fixing sleeve 41 is provided with external threads and is in threaded connection with the threaded hole through the external threads, and then the fixing sleeve 41 is locked and fixed on the connecting lug plate through a locking nut 47 on the external threads. This mounting ensures the reliability of the connection and also allows good disassembly and replacement if the plug 42 becomes worn.

In the long-term use process, different degrees of abrasion can be definitely generated between the plug 42 and the connecting lug plate, and the connecting piece 4 is easy to replace, but the connecting frame 3 is more troublesome to replace, so in order to reduce the cost, a locking bushing 34 is arranged in a through hole 33 near the front connecting end 31 or the rear connecting end 32 on the inner side of the track main body 1, and a bushing hole accurately matched with the lower end of the plug 42 is arranged on the locking bushing 34. The locking bushing 34 may be mounted in the through hole 33 by means of a threaded connection or an interference fit, etc. The locking bushing 34 may be made of a more wear resistant material to increase its useful life. If the locking bush 34 is worn, the locking bush 34 can be directly replaced without disassembling the connecting frame, so that the cost is saved, the replacement efficiency is improved, and the equipment precision is ensured.

When the connecting frame is not fixed, the cap overcomes the elasticity of the spring through the support of the protruding block and the top of the fixed sleeve, so that in order to balance the stress, the clamping grooves 43 and the protruding blocks 45 are at least two and are respectively and rotationally symmetrically arranged along the axes of the fixed sleeve 41 and the plug 42. The stress points can uniformly disperse stress, so that deformation and abrasion of the protruding blocks are reduced.

In order to further increase the reliability of connection and fixation between two adjacent connection frames 3, two front connection ends 31 and two rear connection ends 32 are respectively arranged at the front end and the rear end of the connection frame 3, and are respectively and symmetrically arranged along the axis of the track main body 1, and a connecting piece 4 is respectively arranged between the two front connection ends 31 and the two rear connection ends 32 of the two adjacent connection frames 3. The two connecting ends are fixedly connected, so that the reliability of connection between adjacent connecting frames can be improved, the rigidity of the track main body is increased, and the track main body is prevented from being twisted and the like.

The connection mode among the track main body 1, the connection frame 3 and the vacuum chuck 2 is that a plurality of fixing holes 35 are formed in the periphery of the connection frame 3, a hollow structure for installing the vacuum generator 5 and a pneumatic pipeline is arranged in the middle of the connection frame, a plurality of support columns 21 are arranged on the vacuum chuck 2, the support columns 21 penetrate through the fixing holes 35 and then are connected with the track main body 1, and the connection frame 3 is fixed between the vacuum chuck 2 and the track main body 1. The support fixing is carried out by utilizing the support columns 21, so that the stable and reliable connection among the track main body 1, the connecting frame 3 and the vacuum chuck 2 can be ensured, the stress is uniformly dispersed, the rigidity of the suspended part of the track main body is better improved, and the requirements of the hole making equipment on stability and accuracy are met.

Claims (10)

1. Can unsettled fixed flexible track, including track main part (1) and set up vacuum chuck (2) in track main part (1) below, characterized by: the vacuum chuck (2) is connected with the track main body (1) through the connecting frame (3), front connecting ends (31) and rear connecting ends (32) are respectively arranged at the front end and the rear end of the connecting frame (3) along the extending direction of the track, and the rear connecting ends (32) on the connecting frames (3) on the two vacuum chucks (2) adjacent front and rear can be matched and butted with the front connecting ends (31) and can be fixed together through the connecting piece (4).

2. The suspended fixable flexible rail of claim 1, wherein: the front connecting end (31) and the rear connecting end (32) are both connecting lug plates, through holes (33) are formed in the connecting lug plates, when the track main body (1) is in a straight state, the rear connecting ends (32) on the connecting frames (3) on the two adjacent vacuum sucking discs (2) are attached to the side faces of the front connecting end (31) together, and the through holes (33) on the connecting lug plates are aligned.

3. The suspended fixable flexible rail of claim 2, wherein: the connecting piece (4) is a bolt which can be precisely matched with the through hole (33).

4. The suspended fixable flexible rail of claim 2, wherein: the connecting piece (4) is a locking plug, the locking plug comprises a fixed sleeve (41) and a plug (42), the plug (42) is inserted into the fixed sleeve (41) in a sliding and rotatable mode, a clamping groove (43) is formed in the top of the fixed sleeve (41), a column cap (44) is arranged on the top of the plug (42), a bump (45) capable of being inserted into the clamping groove (43) is arranged at the lower end of the column cap (44), and a spring (46) is arranged between the middle part of the plug (42) and the fixed sleeve (41); the lower end of the fixed sleeve (41) is fixed on the side surface of the front connecting end (31) or the rear connecting end (32) close to the outer side of the track main body (1), when the protruding block (45) is positioned in the clamping groove (43), the lower end of the plug (42) can extend out of the lower end of the fixed sleeve (41) under the action of the spring (46) and is inserted into the through holes (33) of the front connecting end (31) and the rear connecting end (32), and when the protruding block (45) moves out of the clamping groove (43), the plug (42) is retracted into the fixed sleeve (41).

5. The suspended fixable flexible rail of claim 4, wherein: the lower end of the fixing sleeve (41) extends into a through hole (33) on the front connecting end (31) or the rear connecting end (32) close to the outer side of the track main body (1) to be fixed, and the end of the fixing sleeve does not exceed the other side of the connecting lug plate.

6. The suspended fixable flexible rail of claim 5, wherein: the through hole (33) on the front connecting end (31) or the rear connecting end (32) which is close to the outer side of the track main body (1) is a threaded hole, the lower end of the fixed sleeve (41) is provided with external threads and is in threaded connection with the threaded hole, and the external threads are provided with lock nuts (47).

7. The suspended fixable flexible rail of claim 4, wherein: a locking bushing (34) is arranged in a through hole (33) on the front connecting end (31) or the rear connecting end (32) close to the inner side of the track main body (1), and a bushing hole which is accurately matched with the lower end of the plug (42) is formed in the locking bushing (34).

8. The suspended fixable flexible rail of claim 4, wherein: the number of the clamping grooves (43) and the number of the protruding blocks (45) are at least two, and the clamping grooves and the protruding blocks are rotationally symmetrical along the axes of the fixed sleeve (41) and the plug (42) respectively.

9. A flexible rail for suspension fixation as claimed in any one of claims 1 to 8, wherein: the front end and the rear end of the connecting frame (3) are respectively provided with two front connecting ends (31) and two rear connecting ends (32), and are respectively and symmetrically arranged along the axis of the track main body (1), and connecting pieces (4) are respectively arranged between the two front connecting ends (31) and the two rear connecting ends (32) of the two adjacent connecting frames (3).

10. The suspended fixable flexible rail of claim 9, wherein: the connecting frame (3) is provided with a plurality of fixing holes (35) all around, the middle part is provided with a hollow structure for installing the vacuum generator (5) and the pneumatic pipeline, the vacuum sucker (2) is provided with a plurality of support columns (21), the support columns (21) penetrate through the fixing holes (35) and then are connected with the track main body (1), and the connecting frame (3) is fixed between the vacuum sucker (2) and the track main body (1).

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