CN217862907U - Hydraulic internal expansion chuck - Google Patents
Hydraulic internal expansion chuck Download PDFInfo
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- CN217862907U CN217862907U CN202222313549.9U CN202222313549U CN217862907U CN 217862907 U CN217862907 U CN 217862907U CN 202222313549 U CN202222313549 U CN 202222313549U CN 217862907 U CN217862907 U CN 217862907U
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- hydraulic
- section bar
- hollow pipe
- inner cavity
- cavity
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Abstract
The utility model provides a tight chuck expands in hydraulic pressure for solve among the prior art pull the chuck when removing the return stroke and produce the problem that the friction damaged the section bar between the section bar. The utility model comprises a hollow tube with an annular groove on the inner wall, and a gap is arranged between the hollow tube and the section bar in the hollow tube; the inner cavity is hermetically and fixedly connected in the annular groove, the inner cavity is attached to the section bar, a hydraulic cavity is formed between the inner cavity and the annular groove, hydraulic filler is filled in the hydraulic cavity, and the inner cavity is made of flexible material; one end of the oil inlet pipe is communicated with the hydraulic cavity, and the other end of the oil inlet pipe is communicated with the hydraulic oil pump; the reciprocating component drives the hollow pipe to reciprocate. When the section bar is positioned in the hollow pipe, the hydraulic filler is filled into the hydraulic cavity to enable the inner cavity to expand outwards, the section bar is clamped, the section bar is driven to move forwards through the reciprocating moving assembly, when the section bar needs to reset, the hydraulic filler in the hydraulic cavity is drawn out, a gap is formed between the section bar and the hollow pipe, and friction between the inner cavity and the section bar is avoided when the reciprocating moving assembly resets.
Description
Technical Field
The utility model belongs to pultrusion clamp field especially relates to a tight chuck that expands in hydraulic pressure.
Background
The pultrusion process is a process method which soaks the continuous fiber or the fabric thereof with resin, cures the resin by heating through a forming die, and then pulls the resin through a pulling device, thereby realizing the production of the composite material section. The traction chuck of the existing traction equipment is spliced into an upper inner cavity and a lower inner cavity by using polyurethane rubber blocks, the lower half part is fixed in position, and the upper half part is controlled by a hydraulic cylinder to move up and down. The upper half part is downward, the clamping head clamps the section bar to move in a traction way, the upper half part is upward, and the clamping head is reset. Because draw the chuck and use polyurethane to glue and carry out the centre gripping to the section bar, at the in-process of chuck return stroke, because the latter half of drawing the chuck is fixed, will produce hard friction with the section bar, will produce the wearing and tearing destruction to the section bar surface.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcoming of the prior art, the utility model aims at providing an bloated tight chuck in hydraulic pressure for solve among the prior art pull the chuck when removing the return stroke and produce the problem that the friction damaged the section bar between the section bar.
In order to achieve the above objects and other related objects, the present invention provides a hydraulic internal expansion chuck, comprising:
the inner wall of the hollow pipe is provided with an annular groove, a section bar is arranged in the hollow pipe, the axis of the section bar is coincided with the axis of the hollow pipe, and a gap is reserved between the hollow pipe and the section bar;
the inner cavity is positioned between the hollow pipe and the section bar, the inner cavity is fixedly connected in the annular groove in a sealing manner, the inner cavity is attached to the section bar, a hydraulic cavity is formed between the inner cavity and the annular groove, hydraulic fillers are filled in the hydraulic cavity, and the inner cavity is made of flexible materials;
one end of the oil inlet pipe penetrates through the hollow pipe and is communicated with the hydraulic cavity, and the other end of the oil inlet pipe is communicated with the hydraulic oil pump;
the hollow pipe is arranged on the reciprocating assembly, and the reciprocating direction of the reciprocating assembly is parallel to the axial direction of the hollow pipe.
Alternatively, the inner cavity is a rubber or plastic film or a waterproof cloth.
Alternatively, the hydraulic filler is hydraulic oil or water or lubricating oil.
Alternatively, the reciprocating assembly comprises a mounting seat, a guide rail, a sliding block and a driving module;
the guide rail is fixedly connected to the mounting seat, the guide direction of the guide rail is parallel to the axis direction of the hollow pipe, the sliding block is slidably mounted in the guide rail, and the hollow pipe is fixedly mounted on the sliding block through a connecting piece;
the driving module provides reciprocating power for the sliding block.
Alternatively, the driving module comprises a positive and negative motor and a lead screw;
the lead screw is rotationally arranged in the guide rail, the axis of the lead screw is parallel to the axis of the guide rail, and the lead screw is in threaded connection with the sliding block;
the lead screw is fixedly connected to a motor shaft of the positive and negative motor, and the positive and negative motor is fixedly mounted on the mounting seat.
As the alternative scheme, the chuck still includes oil pipe, oil pipe's one end run through the hollow tube and with hydraulic pressure intracavity intercommunication, oil pipe's the other end intercommunication hydraulic pressure filler bin, be provided with the valve on the oil pipe, hydraulic pressure filler has been deposited in the hydraulic pressure filler bin.
As an alternative scheme, the oil inlet end of the hydraulic oil pump is communicated with the interior of the hydraulic filler storage tank through a pipeline, and the oil outlet end of the hydraulic oil pump is communicated with the oil inlet pipe.
As above, the utility model discloses a tight chuck expands in hydraulic pressure has following beneficial effect at least:
1. when the flexible inner cavity is arranged to clamp the section, the uniform clamping force on the section can be ensured;
2. this application has been through setting up flexible interior cavity after the section bar has been accomplished in the centre gripping, when reseing, the back is taken out from the hydraulic pressure intracavity to the hydraulic pressure filler in the hydraulic pressure intracavity, is the clearance between cavity and the section bar to produce the friction with the section bar when having avoided reseing, avoided damaging the section bar.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 2 according to the present invention;
fig. 4 is a partial enlarged view of the present invention at B in fig. 3;
fig. 5 is a schematic structural view of the reciprocating assembly according to the present invention.
In the figure: 101. a hollow tube; 102. an annular groove; 103. an inner cavity; 104. a hydraulic chamber; 105. an oil inlet pipe; 106. a hydraulic oil pump; 107. an oil outlet pipe; 108. a hydraulic filler storage tank; 2. a section bar;
301. a mounting seat; 302. a guide rail; 303. a slider; 304. a positive and negative motor; 305. and a lead screw.
Detailed Description
The following description is given for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be apparent to those skilled in the art from the disclosure of the present invention.
Please refer to fig. 1 to 5. It should be understood that the structures, ratios, sizes, etc. shown in the drawings of the present application are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, change of the ratio relationship or adjustment of the sizes should still fall within the scope of the present invention without affecting the functions and the achievable purposes of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The following examples are for illustrative purposes only. Various embodiments may be combined, and are not limited to only those presented in the following single embodiment.
Referring to fig. 1 and 4, the present invention provides a hydraulic internal expansion chuck, which includes:
the hollow pipe 101 is provided with an annular groove 102 on the inner wall of the hollow pipe 101, a section bar 2 is arranged in the hollow pipe 101, the axis of the section bar 2 is coincident with the axis of the hollow pipe 101, and a gap is arranged between the hollow pipe 101 and the section bar 2;
the inner cavity 103 is positioned between the hollow tube 101 and the section bar 2, the inner cavity 103 is fixedly connected in the annular groove 102 in a sealing manner, the inner cavity 103 is attached to the section bar 2, a hydraulic cavity 104 is formed between the inner cavity 103 and the annular groove 102, and hydraulic filler is filled in the hydraulic cavity 104, wherein the type of the hydraulic filler in the hydraulic cavity 104 is not limited, mainly for expanding the inner cavity 103, so that uniform clamping force is provided for the section bar 2, and the hydraulic filler can be hydraulic oil or water or lubricating oil;
the inner cavity 103 is made of a flexible material, and the flexible material of the inner cavity 103 is not limited here, and mainly can be rubber, a plastic film or waterproof cloth in order to avoid scratching the section bar 2 in the clamping and traction processes;
one end of the oil inlet pipe 105 penetrates through the hollow pipe 101 and is communicated with the inside of the hydraulic cavity 104, and the other end of the oil inlet pipe 105 is communicated with a hydraulic oil pump 106;
the hollow pipe 101 is arranged on the reciprocating assembly, and the reciprocating direction of the reciprocating assembly is parallel to the axial direction of the hollow pipe 101.
The section bar 2 passes through the inner cavity 103 in the hollow pipe 101, and since the hydraulic cavity 104 is not filled with hydraulic filler, the flexible inner cavity 103 will be in a shriveled state, so that the section bar 2 can pass through the inner cavity 103, and then hydraulic oil is introduced into the hydraulic cavity 104 through the oil inlet pipe 105, so that the flexible inner cavity 103 is expanded, so that the flexible inner cavity 103 clamps the section bar 2, and the section bar 2 is pulled back and forth through the reciprocating movement assembly.
In this embodiment, referring to fig. 4 and 5, the reciprocating assembly includes a mounting base 301, a guide rail 302, a slider 303, and a driving module;
the guide rail 302 is fixedly connected to the mounting base 301, the guide direction of the guide rail 302 is parallel to the axial direction of the hollow tube 101, the sliding block 303 is slidably mounted in the guide rail 302, and the hollow tube 101 is fixedly mounted on the sliding block 303 through a connecting piece;
the driving module provides reciprocating power for the slider 303.
The driving module drives the sliding block 303 to reciprocate in the guide rail 302, so as to drive the hollow pipe 101 to reciprocate, and further drive the profile 2 to perform reciprocating traction.
In this embodiment, referring to fig. 2 and fig. 3, the driving module includes a forward and reverse motor 304 and a lead screw 305;
the lead screw 305 is rotatably installed in the guide rail 302, the axis of the lead screw 305 is parallel to the axis of the guide rail 302, and the lead screw 305 is in threaded connection with the sliding block 303; the lead screw 305 is fixedly connected to a motor shaft of the forward and reverse motor 304, and the forward and reverse motor 304 is fixedly installed on the installation base 301.
The forward and reverse motor 304 is started to drive the lead screw 305 to rotate, so as to drive the slide block 303 to slide along the guide rail 302, and the forward and reverse rotation of the forward and reverse motor 304 drives the slide block 303 to move back and forth, so as to drive the hollow pipe 101 to move back and forth.
In this embodiment, referring to fig. 3, the chuck further includes an oil outlet pipe 107, one end of the oil outlet pipe 107 penetrates through the hollow pipe 101 and is communicated with the inside of the hydraulic cavity 104, the other end of the oil outlet pipe 107 is communicated with a hydraulic filler storage tank 108, a valve is disposed on the oil outlet pipe 107, and hydraulic filler is stored in the hydraulic filler storage tank 108.
The oil inlet end of the hydraulic oil pump 106 is communicated with the hydraulic filler storage tank 108 through a pipeline, and the oil outlet end of the hydraulic oil pump 106 is communicated with the oil inlet pipe 105.
Can send the hydraulic oil pump 106 in the hydraulic pressure filler bin 108 to interior cavity 103 through hydraulic oil pump 106 in, return oil through oil outlet pipe 107, realize the cyclic utilization of hydraulic oil, close the valve, can guarantee the pressure in hydraulic pressure chamber 104, when hollow pipe 101 moved backward, open the valve to reduce the pressure in hydraulic pressure chamber 104 through hydraulic oil pump 106, also can be convenient for section bar 2 to pass interior cavity 103.
In this embodiment, referring to fig. 1, an oil inlet end of the hydraulic oil pump 106 is communicated with the hydraulic filler storage tank 108 through a pipeline, and an oil outlet end of the hydraulic oil pump 106 is communicated with the oil inlet pipe 105.
The hydraulic oil pump 106 is started to pump hydraulic oil from the hydraulic filler storage tank 108 through a pipeline and then into the oil inlet pipe 105, so that hydraulic oil can be pumped into the hydraulic chamber 104.
To sum up, the utility model discloses, section bar 2 passes interior cavity 103 in the hollow tube 101, because there is not the hydraulic pressure filler in the hydraulic pressure chamber 104, flexible interior cavity 103 will be the state of going flat, it passes interior cavity 103 to be convenient for section bar 2, section bar 2 passes interior cavity 103 back, lead to hydraulic oil in to hydraulic pressure chamber 104 through hydraulic pressure oil pump 106 with advance oil pipe 105, thereby make flexible interior cavity 103 inflation, thereby make flexible interior cavity 103 grasp section bar 2, lead screw 305 through corotation, drive the antedisplacement of slider 303, realize the antedisplacement of drawing of section bar 2, when needs rethread, reduce the pressure in the hydraulic pressure chamber 104 through hydraulic pressure oil pump 106, through the screw 305 of reversal, drive slider 303 rethread, thereby guaranteed once more to the drawing of section bar 2.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A hydraulic internal expansion clamp, comprising:
the inner wall of the hollow pipe is provided with an annular groove, a section bar is arranged in the hollow pipe, the axis of the section bar is coincided with the axis of the hollow pipe, and a gap is reserved between the hollow pipe and the section bar;
the inner cavity is positioned between the hollow pipe and the sectional material, the inner cavity is fixedly connected in the annular groove in a sealing manner, the inner cavity is attached to the sectional material, a hydraulic cavity is formed between the inner cavity and the annular groove, hydraulic filler is filled in the hydraulic cavity, and the inner cavity is made of flexible material;
one end of the oil inlet pipe penetrates through the hollow pipe and is communicated with the hydraulic cavity, and the other end of the oil inlet pipe is communicated with the hydraulic oil pump;
the hollow pipe is arranged on the reciprocating component, and the reciprocating direction of the reciprocating component is parallel to the axis direction of the hollow pipe.
2. The hydraulic internal expansion chuck according to claim 1, wherein the inner cavity is a rubber or plastic film or a tarpaulin.
3. A hydraulic expansion chuck according to claim 1, wherein said hydraulic filler is hydraulic oil or water or lubricating oil.
4. The hydraulic internal expansion collet according to claim 1, wherein the reciprocating assembly comprises a mounting base, a guide rail, a slider and a driving module;
the guide rail is fixedly connected to the mounting seat, the guide direction of the guide rail is parallel to the axis direction of the hollow pipe, the sliding block is slidably mounted in the guide rail, and the hollow pipe is fixedly mounted on the sliding block through a connecting piece;
the driving module provides reciprocating power for the sliding block.
5. The hydraulic internal expansion chuck according to claim 4, wherein the driving module comprises a forward and reverse motor and a lead screw;
the lead screw is rotatably arranged in the guide rail, the axis of the lead screw is parallel to the axis of the guide rail, and the lead screw is in threaded connection with the sliding block;
the lead screw is fixedly connected to a motor shaft of the positive and negative motor, and the positive and negative motor is fixedly mounted on the mounting seat.
6. The hydraulic internal expanding and tightening chuck according to claim 1, wherein the chuck further comprises an oil outlet pipe, one end of the oil outlet pipe penetrates through the hollow pipe and is communicated with the hydraulic cavity, the other end of the oil outlet pipe is communicated with a hydraulic filler storage tank, a valve is arranged on the oil outlet pipe, and hydraulic fillers are stored in the hydraulic filler storage tank.
7. The hydraulic internal expansion chuck according to claim 6, wherein the oil inlet end of the hydraulic oil pump is connected to the inside of the hydraulic filler storage tank through a pipe, and the oil outlet end of the hydraulic oil pump is connected to the oil inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222313549.9U CN217862907U (en) | 2022-09-01 | 2022-09-01 | Hydraulic internal expansion chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222313549.9U CN217862907U (en) | 2022-09-01 | 2022-09-01 | Hydraulic internal expansion chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217862907U true CN217862907U (en) | 2022-11-22 |
Family
ID=84081049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222313549.9U Active CN217862907U (en) | 2022-09-01 | 2022-09-01 | Hydraulic internal expansion chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217862907U (en) |
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2022
- 2022-09-01 CN CN202222313549.9U patent/CN217862907U/en active Active
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