CN220498301U

CN220498301U - Tensioning mechanism for inner diameter tensioning of pipe workpiece along axial direction

Info

Publication number: CN220498301U
Application number: CN202321373489.8U
Authority: CN
Inventors: 万晓鹏; 唐海琪; 陈全伟; 胡秀梅; 张前进
Original assignee: Shanghai Gongzhong Machinery Technology Co ltd
Current assignee: Shanghai Gongzhong Machinery Technology Co ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2024-02-20
Anticipated expiration: 2033-06-01

Abstract

The utility model discloses a tensioning mechanism for an inner diameter of a pipe workpiece in an axial direction, and particularly relates to the technical field of tool clamps, which comprises the pipe workpiece, wherein a clamping mechanism is connected below the pipe workpiece, the clamping mechanism comprises a connecting seat, and a proximity switch is arranged at the upper part of the outer wall of the connecting seat; through the device, the tensioning sleeve is extruded by the mandrel to tighten the fixed pipe workpiece, the guide rod is continuously contracted to ensure that the lower end of the pipe workpiece is contacted with the pipe end face positioning block, so that the tensioning fixation of the pipe workpiece can be completed, the cost is reduced, the structure is simple, and the action is sensitive.

Description

Tensioning mechanism for inner diameter tensioning of pipe workpiece along axial direction

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a tensioning mechanism for inner diameter tensioning of a pipe workpiece along an axial direction.

Background

The pipe fittings comprise an elbow (elbow), a flange, a three-way pipe, a four-way pipe (cross head), a reducing pipe (big and small heads) and the like. The elbow is used for a place where the pipeline turns; the flange is used for connecting the pipe and a part for connecting the pipes, the part is connected to the pipe end, and the three-way pipe is used for the joint of three pipes; the four-way pipe is used for collecting four pipes; the reducing pipe is used for connecting two pipes with different pipe diameters. Corresponding processing needs to be carried out according to the needs in the production and processing of the pipe fitting, and the common is welding of the pipe fitting, and the pipe fitting needs to be clamped and fixed by using a fixture when being welded so as to be welded. Frock, the technology equipment: refers to the generic term for various tools used in the manufacturing process. Including tools/jigs/dies/gauges/inspection tools/assistive tools/pliers tools/station tools, etc. The tool is a general abbreviation. The tools are divided into special tools/general tools/standard tools (similar to standard parts); and (3) clamping: as the name implies, means for clamping a workpiece (or guiding a tool); in the field of fixture, a welding channel and a welding gesture with excellent welding gun are needed for workpiece welding after many times, so that the production takt time and the welding quality of products are improved. The mechanism is simple, compact, stable and reliable, and is particularly important to the improvement of production takt and product welding quality.

At present, a plurality of tool clamps are designed to realize the functions of inner diameter tensioning and axial tensioning of pipe workpieces by additionally adding a linear motion cylinder, and the mode is high in cost, complex in structure, tedious in action, slow in beat and troublesome in subsequent maintenance; and meanwhile, the flange is required to be mounted through the bolts every time, so that the workpiece is limited and fixed, but the method is inconvenient to use, the flange and the bolts are required to be frequently dismounted, and the method is inconvenient to use.

Disclosure of Invention

The utility model aims to provide a tensioning mechanism for inner diameter tensioning of a pipe workpiece along an axial direction, so as to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a pipe class work piece internal diameter rises tightly and follows axis direction straining device, includes pipe class work piece, pipe class work piece below is connected with fixture, fixture includes the connecting seat, proximity switch is installed on connecting seat outer wall upper portion, the connecting seat bottom is equipped with the cylinder, the cylinder output is connected with the guide bar through the connector in the connecting seat, the guide bar outer wall is equipped with rectangle spring, guide base and tight cover apron that rises from bottom to top in proper order in the connecting seat, the guide bar upper end is connected with the plug in pipe class work piece, be equipped with tight cover adjusting gasket that rises between plug and the guide bar, tight cover apron top that rises is equipped with the tight cover that rises in the plug outside cover, the connecting seat top is equipped with the bush apron, the bush apron top is equipped with pipe end face locating piece in the pipe class work piece outside, pipe end face locating piece top is equipped with the flange in the pipe class work piece outside, be connected through fixed establishment between flange and the bush apron and the rectangle spring.

Further, fixed establishment includes the dead lever, and the dead lever inlays establishes to rotate and install on the flange, the dead lever lower extreme passes the through-hole of seting up on bush apron and the connecting seat, the cavity has been seted up to the dead lever lower extreme inside, the bull stick is installed to the cavity internal rotation, and the bull stick upper end is connected with the handle in the dead lever top, the bull stick outer wall is equipped with the mount in the cavity endotheca, the both ends of mount all have the fixed block through connecting rod swing joint, and the fixed block symmetry sets up, the spout has been seted up to the inner bottom symmetry of cavity, install the slide bar in the spout, slide bar outer wall cover is equipped with spring and baffle, and the baffle is located and is close to fixed block one side, baffle and fixed block bottom fixed connection through the fixed establishment who is equipped with, makes its convenient and fast ground connect fixedly between flange and bush apron and the connecting seat, also convenient dismantlement simultaneously, makes its use more convenient, has improved work efficiency, and the practicality is stronger.

Further, a bushing is sleeved on the outer wall of the guide base and the outer wall of the tensioning sleeve cover plate in the connecting base, and an adjusting gasket is arranged between the bushing cover plate and the pipe end face positioning block.

Furthermore, the guide bush is sleeved on the outer wall of the guide rod in the connecting seat, and is fixedly connected with the connecting seat, and the guide bush is positioned at the bottom of the rectangular spring so as to support and fix the guide rod through the guide bush and assist in rotating the guide rod.

Further, the bull stick passes through the bearing and rotates with the dead lever and be connected, the actuating groove has been seted up in the dead lever internal rotation pole outside, be equipped with the torsional spring in the bull stick outside actuating groove, and the lower extreme is fixed with bull stick and actuating groove inner wall respectively on the torsional spring to it is fixed to utilize the torsional spring to carry out spacing to the bull stick, avoids its unexpected rotation, improves the fixed little girth of restriction to the fixed block.

Further, the dead lever passes through the bearing and rotates with the flange to be connected, connecting rod both ends are articulated with mount and fixed block respectively and are connected, the fixed block is right trapezoid structure, through-hole and dead lever and fixed block integrated configuration looks adaptation are through directly pushing down the dead lever can utilize the logical inslot wall extrusion on bush apron and the connecting seat to promote the fixed block to the cavity and remove.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the fixing mechanism, the flange, the bushing cover plate and the connecting seat are conveniently connected and fixed by utilizing the cooperation between the fixing rod and the fixing block, so that the flange can be conveniently and rapidly installed, and when the flange is disassembled, the handle can be twisted to drive the rotating rod to rotate, so that the fixing frame is driven to drive the connecting rod to pull the fixing block to move into the cavity, and then the fixing rod can be pulled upwards to separate the fixing rod from the connecting seat and the bushing cover plate, thereby completing the disassembly, being convenient to use and improving the working efficiency;

2. according to the device, the pipe workpiece can be fixed in an expanding manner by pulling the core rod to extrude the tensioning sleeve, the guide rod is continuously contracted, so that the lower end of the pipe workpiece is contacted with the pipe end face positioning block, and the tensioning and fixing of the pipe workpiece can be finished.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

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

FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 at A-A in accordance with the present utility model;

FIG. 3 is a schematic view of a partial structure between a fixing rod and a flange according to the present utility model;

FIG. 4 is a schematic illustration of a partial cut-away structure between a fixed block and a fixed rod of the present utility model;

in the figure: 1. a tube-like workpiece; 2. a connecting seat; 3. a cylinder; 4. a proximity switch; 5. a connector; 6. a guide rod; 7. a guide base; 8. a tensioning sleeve cover plate; 9. adjusting the gasket; 10. a pipe end face positioning block; 11. a core rod; 12. adjusting the gasket of the tensioning sleeve; 13. a tensioning sleeve; 14. a rectangular spring; 15. a bushing; 16. a bushing cover plate; 17. a flange; 18. a guide bushing; 19. a fixed rod; 20. a rotating rod; 21. a fixing frame; 22. a connecting rod; 23. a fixed block; 24. a torsion spring; 25. a slide bar; 26. a spring; 27. and a baffle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The tensioning mechanism comprises a pipe workpiece 1, a clamping mechanism is connected below the pipe workpiece 1 and comprises a connecting seat 2, a proximity switch 4 is installed on the upper portion of the outer wall of the connecting seat 2, an air cylinder 3 is arranged at the bottom of the connecting seat 2, an output end of the air cylinder 3 is connected with a guide rod 6 through a connector 5 in the connecting seat 2, a rectangular spring 14, a guide base 7 and a tensioning sleeve cover plate 8 are sequentially sleeved on the outer wall of the guide rod 6 from bottom to top in the connecting seat 2, a core rod 11 is connected to the upper end of the guide rod 6 in the pipe workpiece 1, a tensioning sleeve adjusting gasket 12 is arranged between the core rod 11 and the guide rod 6, a tensioning sleeve 13 is sleeved on the top of the tensioning sleeve cover plate 8 outside the core rod 11, a lining cover plate 16 is arranged on the top of the connecting seat 2, a pipe end face positioning block 10 is arranged on the outer side of the pipe workpiece 1, a flange 17 is arranged on the outer side of the pipe end face positioning block 10, and the flange 17 is connected with the lining cover plate 16 and the rectangular spring 14 through a fixing mechanism.

In this example, fixed establishment includes dead lever 19, and dead lever 19 inlays establishes and rotates to install on flange 17, the through-hole of seting up on dead lever 19 lower extreme passed bush apron 16 and connecting seat 2, the cavity has been seted up to the inside chamber of dead lever 19 lower extreme, the bull stick 20 is installed to the cavity internal rotation, and bull stick 20 upper end is connected with the handle in dead lever 19 top, bull stick 20 outer wall is equipped with mount 21 in the cavity endotheca, the both ends of mount 21 all have fixed block 23 through connecting rod 22 swing joint, and fixed block 23 symmetry sets up, the spout has been seted up to the symmetry in the cavity, install slide bar 25 in the spout, slide bar 25 outer wall cover is equipped with spring 26 and baffle 27, and baffle 27 is located near fixed block 23 one side, baffle 27 and fixed block 23 bottom fixed connection, through the fixed establishment who is equipped with, make it convenient and fast ground connect and fix flange 17 with between bush apron 16 and the connecting seat 2, simultaneously also convenient dismantlement, make its use more convenient, work efficiency has been improved, the practicality is stronger. In the example, a bushing 15 is sleeved on the outer wall of the guide base 7 and the tensioning sleeve cover plate 8 in the connecting seat 2, and an adjusting gasket 9 is arranged between the bushing cover plate 16 and the pipe end face positioning block 10. In this example, the guide bush 18 is sleeved on the outer wall of the guide rod 6 in the connecting seat 2, the guide bush 18 is fixedly connected with the connecting seat 2, the guide bush 18 is located at the bottom of the rectangular spring 14, so that the guide rod 6 is supported and fixed through the guide bush 18, and meanwhile, the rotation of the guide rod 6 is assisted. In this example, bull stick 20 rotates through bearing and dead lever 19 to be connected, and the actuating groove has been seted up in the dead lever 19 internal rotation pole 20 outside, is equipped with torsional spring 24 in the actuating groove in the bull stick 20 outside, and the upper and lower extreme of torsional spring 24 respectively with bull stick 20 and actuating groove inner wall fixed connection to utilize torsional spring 24 to carry out spacing fixed to bull stick 20, avoid its unexpected rotation, improve the fixed little girl of restriction to fixed block 23. In this example, the fixing rod 19 is rotatably connected with the flange 17 through a bearing, two ends of the connecting rod 22 are respectively hinged with the fixing frame 21 and the fixing block 23, the fixing block 23 is in a right trapezoid structure, and the through hole is matched with the combined structure of the fixing rod 19 and the fixing block 23 so as to push the fixing block 23 to move towards the cavity by directly pushing down the fixing rod 19 and utilizing the inner walls of the through grooves on the bushing cover plate 16 and the connecting seat 2.

The working principle of the utility model is as follows: when the flange 17 is used, the pipe workpiece 1 is mounted on the bushing cover plate 16, the flange 17 is sleeved on the pipe workpiece 1, the lower ends of the fixing rods 19 are inserted into through holes on the bushing cover plate 16 and the connecting seat 2, the fixing blocks 23 on two sides are extruded by the inner walls of the through holes, so that the fixing blocks 23 move inwards in the cavity, the fixing blocks 23 push the connecting rods 22 to push the fixing frames 21 to drive the rotating rods 20 to rotate, meanwhile, the torsion springs 24 are twisted by the rotating rods 20, the baffle 27 is driven to slide along the sliding rods 25 while the fixing blocks 23 move, the spring 26 is extruded by the baffle 27 until the fixing blocks 23 move to the lower part of the upper end of the connecting seat 2, the baffle 27 performs reset motion under the elastic force of the spring 26, the baffle 27 drives the fixing blocks 23 to perform reset motion, one ends of the fixing blocks 23 move out of the cavity, and the fixing rods 19 are limited and the flange 17 can be mounted; when the flange 17 is disassembled, the handle can be twisted to drive the rotating rod 20 and then the fixing frame 21 to rotate, so that the fixing frame 21 pulls the connecting rod 22 and then drives the fixing block 23 to be retracted into the cavity, and then the flange 17 and the fixing rod 19 are pulled up to be disassembled; after the pipe workpiece 1 is installed and placed, the air cylinder 3 can be started to drive the connector 5 and then drive the guide rod 6 to enable the mandrel 11 to move downwards, so that the guide base 7 moves downwards to extrude the rectangular spring 14, the rectangular spring 14 can generate a force opposite to the stress direction to the guide base 7, meanwhile, the mandrel 11 is extruded and pushed to move outwards by the shrinkage of the guide rod 6, the flange 17 and the bushing cover plate 16 are matched to conduct expansion fastening on the pipe workpiece 1, then the air cylinder 3 is continuously started to pull down the guide rod 6 to move, meanwhile, the rectangular spring 14 is continuously compressed to work, the force for expanding and fastening the pipe workpiece 1 by the expansion sleeve 13 is enabled to be larger, the expansion fastening on the pipe workpiece 1 can be completed until the travel of the guide rod 6 is completely shrunk.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a pipe class work piece internal diameter tensioning and along axis direction straining device, includes pipe class work piece (1), its characterized in that: the utility model provides a pipe class work piece (1) below is connected with fixture, fixture includes connecting seat (2), proximity switch (4) are installed on connecting seat (2) outer wall upper portion, connecting seat (2) bottom is equipped with cylinder (3), cylinder (3) output is connected with guide bar (6) through connector (5) in connecting seat (2), guide bar (6) outer wall is equipped with rectangle spring (14), direction base (7) and tight cover apron (8) that rise by last cover in proper order in connecting seat (2), guide bar (6) upper end is connected with plug (11) in pipe class work piece (1), be equipped with tight cover regulating gasket (12) that rises between plug (11) and guide bar (6), tight cover apron (8) top is equipped with tight cover (13) that rises in plug (11) outside cover, connecting seat (2) top is equipped with bush apron (16), bush apron (16) top is equipped with pipe terminal surface (10) in pipe class work piece (1) outside by last cover, pipe locating piece (10) top is equipped with pipe locating piece (17) and flange (17) between pipe locating piece (1) outside flange (17) and fixed connection flange.

2. The mechanism for tensioning the inner diameter of a tubular workpiece in the axial direction and tensioning the tubular workpiece in the axial direction according to claim 1, wherein: the fixing mechanism comprises a fixing rod (19), the fixing rod (19) is embedded to rotate and installed on a flange (17), through holes are formed in the lower end of the fixing rod (19) through a bushing cover plate (16) and a connecting seat (2), a cavity is formed in the lower end of the fixing rod (19), a rotating rod (20) is rotatably installed in the cavity, a handle is connected to the upper end of the rotating rod (20) above the fixing rod (19), a fixing frame (21) is sleeved on the outer wall of the rotating rod (20) in the cavity, fixing blocks (23) are movably connected to two ends of the fixing frame (21) through connecting rods (22), fixing blocks (23) are symmetrically arranged, sliding grooves are symmetrically formed in the bottoms of the cavity, sliding rods (25) are installed in the sliding grooves, springs (26) and a baffle (27) are sleeved on the outer wall of the sliding rods, and the baffle (27) is located on one side close to the fixing blocks (23), and the bottoms of the baffle (27) are fixedly connected to the fixing blocks (23).

3. The mechanism for tensioning the inner diameter of a tubular workpiece in the axial direction and tensioning the tubular workpiece in the axial direction according to claim 1, wherein: the outer walls of the guide base (7) and the tensioning sleeve cover plate (8) are sleeved with a bushing (15) in the connecting seat (2), and an adjusting gasket (9) is arranged between the bushing cover plate (16) and the pipe end face positioning block (10).

4. The mechanism for tensioning the inner diameter of a tubular workpiece in the axial direction and tensioning the tubular workpiece in the axial direction according to claim 1, wherein: the outer wall of the guide rod (6) is sleeved with a guide bushing (18) in the connecting seat (2), the guide bushing (18) is fixedly connected with the connecting seat (2), and the guide bushing (18) is positioned at the bottom of the rectangular spring (14).

5. The mechanism for tensioning the inner diameter of a tubular workpiece in the axial direction according to claim 2, wherein: the rotary rod (20) is rotationally connected with the fixed rod (19) through a bearing, a driving groove is formed in the outer side of the rotary rod (20) in the fixed rod (19), a torsion spring (24) is arranged in the driving groove in the outer side of the rotary rod (20), and the upper end and the lower end of the torsion spring (24) are fixedly connected with the rotary rod (20) and the inner wall of the driving groove respectively.

6. The mechanism for tensioning the inner diameter of a tubular workpiece in the axial direction according to claim 2, wherein: the fixing rod (19) is rotationally connected with the flange (17) through a bearing, two ends of the connecting rod (22) are respectively hinged with the fixing frame (21) and the fixing block (23), the fixing block (23) is of a right trapezoid structure, and the through hole is matched with the combined structure of the fixing rod (19) and the fixing block (23).