CN214265316U

CN214265316U - Large-range inner hole centering expansion device

Info

Publication number: CN214265316U
Application number: CN202023337027.XU
Authority: CN
Inventors: 李锋; 张光权
Original assignee: Jiangsu Zena Equipment Technology Co ltd
Current assignee: Jiangsu Zena Equipment Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-24
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a hole centering tight device that expands on a large scale belongs to work piece processing field, comprising a base plate, the circular shell of top fixedly connected with of bottom plate, the both sides of circular shell all are provided with the arc post, the inboard fixedly connected with framework of arc post, the inboard of framework runs through to the inner chamber of circular shell. This tight device that expands of hole centering on a large scale, through setting up the bottom plate, the circular shell, the arc post, the framework, the spout, the traveller, first bracing piece, first round pin axle, the second bracing piece, the second round pin axle, first fixed block, the cylinder pushes away the post, the third round pin axle, the second fixed block, the spacing ring, spacing guide slot and spacing guide block mutually support, fixed effectual advantage has been reached, current hole centering tight device that expands has been solved, fixed effect is poor, when people are using the hole centering tight device that expands, can't fix the work piece hole, the phenomenon that drops appears easily, influence the processingquality of work piece.

Description

Large-range inner hole centering expansion device

Technical Field

The utility model belongs to the technical field of the work piece processing, concretely relates to hole centering tight device that expands on a large scale.

Background

Workpiece, a product part in a manufacturing process. Also called as a workpiece, a fabricated part, a courseware, a hardware part and the like, the workpiece refers to a processing object in the machining process, can be a single part or a combination of a plurality of fixed parts, the processing modes of the workpiece are various, such as turning, milling, planing, grinding, casting, forging and the like, the processing procedures of the workpiece are changed along with the change of the processing modes,

in the work piece course of working, need use the bloated tight device of hole centering to in bloated tight fixed to the work piece hole, present hole centering bloated tight device, fixed effect is poor, and when people were using the bloated tight device of hole centering, can't fix the work piece hole, the phenomenon that drops appears easily, influences the processingquality of work piece, inconvenient people use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hole centering tight device that expands on a large scale to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: hole centering tight device that expands on a large scale, comprising a base plate, the circular shell of top fixedly connected with of bottom plate, the both sides of circular shell all are provided with the arc post, the inboard fixedly connected with framework of arc post, the inboard of framework runs through to the inner chamber of circular shell, the spout has all been seted up with the top and the bottom at the back to the positive top of framework inner chamber and bottom, the inner chamber sliding connection of spout has the traveller, first bracing piece has been cup jointed on the surface of traveller, the surface of first bracing piece has the second bracing piece through first round pin axle swing joint, there is first fixed block in the inboard of second bracing piece through second round pin axle swing joint, the inboard fixedly connected with cylinder of first fixed block pushes away the post.

As a preferred embodiment, the inner side of the first supporting rod is movably connected with a second fixing block through a third pin shaft, and the back of the second fixing block is fixedly connected with the back of the inner cavity of the circular shell.

As a preferred embodiment, the bottom of the cylinder push column penetrates through to the bottom of the bottom plate and is fixedly connected with a connecting plate, and fixing holes are formed in two sides of the top of the connecting plate.

As a preferred embodiment, the top of the surface of the cylinder push column is sleeved with a limit ring, and the bottom of the limit ring is fixedly connected with the bottom of the inner cavity of the circular shell.

As a preferred embodiment, both sides of the top of the bottom plate are provided with limiting guide grooves, inner cavities of the limiting guide grooves are connected with limiting guide blocks in a sliding mode, and the tops of the limiting guide blocks are fixedly connected with the bottoms of the arc-shaped columns.

In a preferred embodiment, bolts are arranged on both sides of the second fixing block, and the back surfaces of the bolts are fixedly connected with the back surface of the inner cavity of the circular shell.

In a preferred embodiment, the material of the sliding column is alloy steel material, and the alloy steel material is manganese steel metal.

As a preferred embodiment, the first pin, the second pin and the third pin are made of stainless steel, and the first pin, the second pin and the third pin have the same shape and size.

Compared with the prior art, the beneficial effects of the utility model are that:

the large-range inner hole centering and expanding device has the advantages that the advantages of good fixing effect are achieved by the mutual matching of the bottom plate, the circular shell, the arc-shaped column, the frame body, the sliding groove, the sliding column, the first supporting rod, the first pin shaft, the second supporting rod, the second pin shaft, the first fixing block, the cylinder pushing column, the third pin shaft, the second fixing block, the limiting ring, the limiting guide groove and the limiting guide block, and the problems that the existing inner hole centering and expanding device is poor in fixing effect, when people use the inner hole centering and expanding device, the inner hole of a workpiece cannot be fixed, the workpiece is easy to fall off, the processing quality of the workpiece is affected, and the use of the workpiece is inconvenient are solved;

this hole centering tight device that expands on a large scale, through setting up spacing guide slot and spacing guide block, play the steady effect of removal when using to the arc post, the problem of arc post rocking appears easily when using has been solved, through setting up spout and traveller, play the effect that slides stably when using to first bracing piece, the problem of rocking appears easily when using in first bracing piece has been solved, through setting up the spacing ring, the effect of anti-shake has been played when using to the cylinder ejection of compact, the problem of shake appears easily when using in the cylinder ejection of compact.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the circular shell structure of the present invention;

fig. 3 is a schematic perspective view of the frame structure of the present invention.

In the figure: 1. a base plate; 2. a circular shell; 3. an arc-shaped column; 4. a frame body; 5. a chute; 6. a traveler; 7. a first support bar; 8. a first pin shaft; 9. a second support bar; 10. a second pin shaft; 11. a first fixed block; 12. a cylinder push post; 13. a third pin shaft; 14. a second fixed block; 15. a limiting ring; 16. a limiting guide groove; 17. and a limiting guide block.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Please refer to fig. 1-3, the utility model provides a hole centering tight device that expands on a large scale, comprising a base plate 1, the circular shell 2 of top fixedly connected with of bottom plate 1, the both sides of circular shell 2 all are provided with arc post 3, the inboard fixedly connected with framework 4 of arc post 3, framework 4's inboard runs through to the inner chamber of circular shell 2, spout 5 has all been seted up with the top and the bottom at the back to the positive top of framework 4 inner chamber and bottom, the inner chamber sliding connection of spout 5 has slide column 6, first bracing piece 7 has been cup jointed on slide column 6's surface, the surface of first bracing piece 7 has second bracing piece 9 through first round pin axle 8 swing joint, the inboard of second bracing piece 9 has first fixed block 11 through second round pin axle 10 swing joint, the inboard fixedly connected with cylinder pushing ram 12 of first fixed block 11.

Wherein, the inboard of first bracing piece 7 has second fixed block 14 through third round pin axle 13 swing joint, and the back of second fixed block 14 and the back fixed connection of 2 inner chambers of circular shell through setting up spacing guide slot 16 and spacing guide block 17, have played the steady effect of removal when using to arc post 3, have solved the problem that arc post 3 appears rocking easily when using.

Wherein, the bottom of cylinder support strut 12 runs through to bottom plate 1's bottom and fixedly connected with connecting plate, and the fixed orifices has all been seted up to the both sides at connecting plate top, through setting up spout 5 and traveller 6, has played the effect that slides stably when using to first bracing piece 7, has solved first bracing piece 7 and has appeared rocking problem easily when using.

Wherein, the top on cylinder pushing ram 12 surface has cup jointed spacing ring 15, and the bottom of spacing ring 15 and the bottom fixed connection of 2 inner chambers of round shell have played the effect of anti-shake to cylinder pushing ram 12 when using through setting up spacing ring 15, have solved the problem that cylinder pushing ram 12 appears the shake easily when using.

Wherein, spacing guide slot 16 has all been seted up to the both sides at bottom plate 1 top, and spacing guide block 17, the bottom fixed connection of the top of spacing guide block 17 and arc post 3 have been connected to the inner chamber sliding of spacing guide slot 16.

Wherein, the both sides of second fixed block 14 all are provided with the bolt, and the back fixed connection of circular shell 2 inner chamber of bolt.

The sliding column 6 is made of alloy steel material, and the alloy steel material is manganese steel metal.

Wherein the first pin shaft 8, the second pin shaft 10 and the third pin shaft 13 are made of stainless steel materials, the first pin shaft 8, the second pin shaft 10 and the third pin shaft 13 have the same shape and size, by arranging the bottom plate 1, the circular shell 2, the arc-shaped column 3, the frame body 4, the sliding chute 5, the sliding column 6, the first supporting rod 7, the first pin shaft 8, the second supporting rod 9, the second pin shaft 10, the first fixed block 11, the cylinder pushing column 12, the third pin shaft 13, the second fixed block 14, the limiting ring 15, the limiting guide groove 16 and the limiting guide block 17 to be matched with each other, the advantage of good fixing effect is achieved, the problems of poor fixing effect and the like of the existing inner hole centering and tensioning device are solved, when people use the inner hole centering and expanding device, the inner hole of the workpiece cannot be fixed, the phenomenon of falling easily occurs, the processing quality of the workpiece is affected, and the use by people is inconvenient.

The utility model discloses a theory of operation and use flow: people firstly put the circular shell 2 and the arc-shaped column 3 into an inner hole of a workpiece, then the cylinder push column 12 is connected with an external execution part, when the cylinder push column 12 moves upwards, the cylinder push column 12 pushes the first support rod 7 upwards through the first pin shaft 8, the second support rod 9, the second pin shaft 10 and the first fixed block 11, the first support rod 7 drives the slide column 6 to slide in the chute 5 through the third pin shaft 13 and the second fixed block 14, so that the slide column 6 drives the frame body 4 to open towards two sides through the chute 5, the frame body 4 drives the arc-shaped column 3 to open towards two sides, so that the inner hole of the workpiece is fixed, the advantage of good fixing effect is achieved, the problems that the existing inner hole centering and expanding device is poor in fixing effect, when people use the inner hole centering and expanding device, the inner hole of the workpiece cannot be fixed, the phenomenon of falling easily occurs, and the processing quality of the workpiece is affected are solved, is inconvenient for people to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Hole centering tight device that expands on a large scale, including bottom plate (1), its characterized in that: the top of the bottom plate (1) is fixedly connected with a circular shell (2), arc-shaped columns (3) are arranged on both sides of the circular shell (2), the inner side of the arc-shaped column (3) is fixedly connected with a frame body (4), the inner side of the frame body (4) penetrates through the inner cavity of the circular shell (2), the top and the bottom of the front surface of the inner cavity of the frame body (4) and the top and the bottom of the back surface are both provided with sliding chutes (5), the inner cavity of the sliding chute (5) is connected with a sliding column (6) in a sliding way, the surface of the sliding column (6) is sleeved with a first supporting rod (7), the surface of the first supporting rod (7) is movably connected with a second supporting rod (9) through a first pin shaft (8), the inner side of the second supporting rod (9) is movably connected with a first fixed block (11) through a second pin shaft (10), and the inner side of the first fixed block (11) is fixedly connected with a cylinder push column (12).

2. The wide range inner hole centering and tightening device according to claim 1, wherein: the inner side of the first supporting rod (7) is movably connected with a second fixing block (14) through a third pin shaft (13), and the back of the second fixing block (14) is fixedly connected with the back of the inner cavity of the circular shell (2).

3. The wide range inner hole centering and tightening device according to claim 1, wherein: the bottom of the cylinder pushing column (12) penetrates through the bottom of the bottom plate (1) and is fixedly connected with a connecting plate, and fixing holes are formed in the two sides of the top of the connecting plate.

4. The wide range inner hole centering and tightening device according to claim 1, wherein: the top of the surface of the cylinder push column (12) is sleeved with a limiting ring (15), and the bottom of the limiting ring (15) is fixedly connected with the bottom of the inner cavity of the circular shell (2).

5. The wide range inner hole centering and tightening device according to claim 1, wherein: limiting guide grooves (16) are formed in the two sides of the top of the bottom plate (1), limiting guide blocks (17) are connected to the inner cavities of the limiting guide grooves (16) in a sliding mode, and the tops of the limiting guide blocks (17) are fixedly connected with the bottoms of the arc-shaped columns (3).

6. The wide range inner hole centering and tightening device according to claim 2, wherein: bolts are arranged on two sides of the second fixing block (14), and the back of each bolt is fixedly connected with the back of the inner cavity of the circular shell (2).

7. The wide range inner hole centering and tightening device according to claim 1, wherein: the sliding column (6) is made of alloy steel material, and the alloy steel material is manganese steel metal.

8. The wide range inner hole centering and tightening device according to claim 1, wherein: the first pin shaft (8), the second pin shaft (10) and the third pin shaft (13) are made of stainless steel materials, and the first pin shaft (8), the second pin shaft (10) and the third pin shaft (13) are identical in shape and size.