CN218460908U - High-precision hydraulic chuck - Google Patents

High-precision hydraulic chuck Download PDF

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Publication number
CN218460908U
CN218460908U CN202221031579.4U CN202221031579U CN218460908U CN 218460908 U CN218460908 U CN 218460908U CN 202221031579 U CN202221031579 U CN 202221031579U CN 218460908 U CN218460908 U CN 218460908U
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China
Prior art keywords
hydraulic chuck
nut
joggle
chuck according
disc body
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CN202221031579.4U
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Chinese (zh)
Inventor
林海兵
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Wenling Dingchang Machinery Co ltd
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Wenling Dingchang Machinery Co ltd
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Priority to CN202221031579.4U priority Critical patent/CN218460908U/en
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Abstract

The utility model relates to a precision finishing frock technical field, in particular to high accuracy hydraulic chuck to it is poor to solve prior art structure rigidity, the great technical problem of repeated positioning error. The method comprises the following steps: a power connection space is formed from the second end of the disc body to the disc body; the connecting nut is used for connecting a power pull rod, the power pull rod is connected and driven by a rotary oil cylinder, and the driving direction is the circumferential direction of the disc body; the axial freedom degree limiting component is used for limiting a core sleeve clamped in the axial direction of the connecting nut to move along the axial direction when the rotary cylinder is driven; the joggle structure part is used for generating clamping force between the core sleeve and a slide block part which is connected on the disk body in a sliding mode, so that the clamping force of a soft claw connected when the slide block part moves along the axial direction can be controlled. The technical scheme has the advantages of simple structure, reliable repeated positioning and high precision.

Description

High-precision hydraulic chuck
Technical Field
The utility model relates to a precision finishing frock technical field, in particular to high accuracy hydraulic chuck.
Background
In the prior art, the hydraulic type chucks sold in the market have unified problems, namely when the clamping precision is required, the defects of poor structural rigidity and large repeated positioning error of the hydraulic chuck generally exist, particularly the conversion of axial force to radial clamping force is needed, so that the high-precision hydraulic chuck meeting the precision basis is needed to be provided in the precise clamping aspect of a clamp so as to increase the rigidity and the service life of a product.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the above-mentioned technical problem among the prior art, provide a high accuracy hydraulic chuck.
In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:
a high precision hydraulic chuck comprising:
a power connection space 300 is formed from the second end of the disc body 3 to the inside of the disc body 3;
the connecting nut 2 is arranged in the disc body 3 and is positioned in the power connecting space 300;
the connecting nut 2 is used for connecting a power pull rod, the power pull rod is driven by a rotary cylinder or an oil cylinder in a connecting mode, and the driving direction is the circumferential direction of the disc body 3;
an axial degree-of-freedom limiting member 10 for limiting an axial movement of a core sleeve 5, which is axially clamped to the coupling nut 2, when the rotary cylinder or the rotary cylinder is driven;
the joggle structure part 20 is used for generating clamping force between the core sleeve 5 and a slide block component 40 which is connected on the disk body 3 in a sliding mode, so that the clamping force of a soft claw 11 connected with the slide block component 40 moving along the axial direction can be controlled.
Specifically, the slider member 40 includes:
a slider 4 slidably mounted on the tray body 3;
and a tightening slide 41 connected to the slider 4 and having an inner side abutting against an outer periphery of the core barrel 5.
Specifically, the dovetail structure 20 includes:
a joggle block 21, the first end of which can be joggled with the slide block 4, the joggle block 21 forming a joggle inclination angle of 12 degrees.
Specifically, the tightening slide 41 is located between the tenon block 21 and the core barrel 5.
Specifically, the axial freedom degree limiting component 10 is a nut gland 9, and the nut gland 9 is arranged on the disc body 3.
Specifically, the sliding block 4 is connected with the soft claw 11 through a T-shaped nut 6.
Specifically, a dust cover 7 is arranged at the first end of the disc body 3, and a dust plug 8 is mounted on the dust cover 7.
Specifically, the second end of the disc body 3 is connected with a transition disc 1, and the transition disc 1 is used for connecting a spindle nose.
The utility model discloses following beneficial effect has:
on the first hand, the technical scheme has the advantages of simple structure, reliable repeated positioning and high precision.
In the second aspect, the tenon joint structure part is adopted, the axial force can be amplified to be radial force, and the clamping is firm.
In the third aspect, the chuck can be configured in a rotationally symmetrical manner, so that the inner support and the clamping of the chuck are stable during operation.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a first cross-sectional view of the present invention;
fig. 2 is a second cross-sectional view of the present invention;
fig. 3 is a third cross-sectional view of the present invention;
fig. 4 is a top view of the present invention.
The reference numerals in the figures denote:
an axial degree of freedom limit member 10, a joggle structure part 20; slider part 40
The device comprises a transition disc 1, a connecting nut 2, a disc body 3, a sliding block 4, a core sleeve 5, a T-shaped nut 6, a dustproof cover 7, a dustproof plug 8, a nut gland 9 and a soft claw 11;
a joggle block 21 and a sliding tight part 41.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention; for convenience of description, in the present application, the left side is a "first end", the right side is a "second end", the upper side is a "first end", and the lower side is a "second end" in the current view, so that the description is for the purpose of clearly expressing the technical solution, and should not be construed as an improper limitation to the technical solution of the present application.
Aiming at the unified problem of a hydraulic chuck sold in the market, namely when the chuck has the requirement of clamping precision, the defects of poor structural rigidity and large repeated positioning error of the hydraulic chuck generally exist, specifically, the conversion of axial force into radial clamping force is realized, and particularly, on the basis of meeting the requirements of repeated positioning and precision, the design idea of the application is that the high-precision hydraulic chuck is combined with the attached drawings 1-3, and the high-precision hydraulic chuck consists of a transition disc 1, a connecting nut 2, a disc body 3, a sliding block 4, a core sleeve 5, a T-shaped nut 6, a dustproof cover 7, a dustproof plug 8 and a nut gland 9;
the sliding block 4 is connected with the soft claw 11 through the nut 6, the soft claw can be bored by a main machine during machining at each time, the positioning precision of the tool is guaranteed, and the transition disc 1 is connected with the nose end of the main shaft. The connecting nut 2) is connected with a rotary oil cylinder through a power pull rod to drive the high-precision hydraulic chuck to work.
When the high-precision hydraulic chuck works, the connecting nut 2 moves downwards under the action of external force and passes through the screw cap 9 (the screw cap gland 9 moves downwards together with the core sleeve 5; the core sleeve 5 is connected with the slide block 4 through the joggle joint structure part 20 with 13 degrees;
specifically, because the slider 4 is mounted on the disk body 3, the freedom of movement along the direction of the nut gland 9 is limited, and the freedom of movement in the radial direction is not limited; the slide 4 will move in the axial direction when the core sleeve 5 is moved downwards together, and the circumferential force can greatly amplify the radial clamping force because of the 13 deg. dovetail structure 20. The sliding block 4 moves towards the axis to drive the soft claw 11 to move towards the axis, so that the clamping function is realized.
When needing to be explained, the disk body 3 is a base body of the chuck, and the disk bodies 3 and the transition disk 1 do not move relatively when working; the slider 4 corresponds to an actuator; the connecting nut 2 and the core sleeve 5 are driving parts which move along the axis under the action of external force to drive the chuck to work, and can be regarded as a whole without relative movement.
An oil guide hole is drilled in the sliding block 4 to lubricate a moving part; by adopting the 13-degree joggle joint structure part 20, the axial force can be amplified into radial force, and the clamping is firm.
Under the implementation of the configuration, the first aspect of the technical scheme has the advantages of simple structural configuration, reliable repeated positioning and high precision; in addition, the technical scheme preferably adopts the 12-degree joggle joint structural part 20, the axial force can be amplified into the radial force, and the clamping is firm; obviously, this angle forms a 12 ° joggle inclination for the joggle block 21; obviously, under the actual configuration of the technical scheme of the present application, the effect brought by replacing the angle index should be understood as the effect generated by the technical scheme, and belongs to the scope of the technical scheme.
Referring to fig. 4, a three-jaw rotationally symmetric form can be provided so that the chuck is stable in internal support and clamping during operation.
The following is a specific embodiment of the present technical solution in practical configuration, please refer to fig. 1-3, which includes: a power connection space 300 is formed from the second end of the disc body 3 to the disc body 3; the connecting nut 2 is arranged in the disc body 3 and is positioned in the power connecting space 300; the connecting nut 2 is used for connecting a power pull rod, the power pull rod is connected and driven by a rotary cylinder, and the driving direction is the circumferential direction of the disc body 3; an axial degree-of-freedom limiting member 10 for limiting a core sleeve 5, which is axially locked to the coupling nut 2, from moving in an axial direction when the rotary cylinder is driven; the joggle structure 20 is used for generating clamping force between the core sleeve 5 and a slide component 40 which is connected on the disc body 3 in a sliding mode, so that the clamping force of a soft claw 11 connected when the slide component 40 moves along the axial direction can be controlled.
In one particular embodiment, the slider member 40 includes: a slider 4 slidably mounted on the tray body 3; and a slide-tightening part 41 which is connected to the slider 4 and whose inner side abuts against the outer periphery of the core barrel 5.
In one particular embodiment, the dovetail structure 20 includes: a joggle block 21, the first end of which can be joggled with the slide block 4, the joggle block 21 forming a joggle inclination angle of 12 °.
In one specific embodiment, the sliding part 41 is positioned between the tenon block 21 and the core sleeve 5, the axial freedom degree limiting part 10 is a nut gland 9, the nut gland 9 is arranged on the disk body 3, and the sliding block 4 is connected with the soft claw 11 through a T-shaped nut 6.
In a specific embodiment, a first end of the disc body 3 is provided with a dustproof cover 7, a dustproof plug 8 is installed on the dustproof cover 7, and a second end of the disc body 3 is connected with a transition disc 1, wherein the transition disc 1 is used for connecting with a spindle nose.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (8)

1. A high accuracy hydraulic chuck, comprising:
the power connection structure comprises a tray body (3), wherein a power connection space (300) is formed from the second end of the tray body (3) to the tray body (3);
the connecting nut (2) is arranged in the disc body (3) and is positioned in the power connecting space (300);
the connecting nut (2) is used for connecting a power pull rod, the power pull rod is driven by a rotary cylinder or an oil cylinder in a connecting way, and the driving direction is the circumferential direction of the disc body (3);
the axial freedom degree limiting component (10) is used for limiting a core sleeve (5) clamped in the axial direction of the connecting nut (2) to move along the axial direction when the rotary cylinder or the rotary oil cylinder is driven;
the joggle structure part (20) is used for generating clamping force between the core sleeve (5) and a slide block component (40) which is connected on the disc body (3) in a sliding mode, so that the clamping force of a soft claw (11) connected when the slide block component (40) moves along the axial direction can be controlled.
2. The high precision hydraulic chuck according to claim 1, wherein said slider member (40) comprises:
a slider (4) slidably mounted on the disc (3);
and a tightening slide section (41) which is connected to the slider (4) and whose inner side abuts against the outer periphery of the core case (5).
3. The high precision hydraulic chuck according to claim 2, wherein the dovetail structure (20) comprises:
a joggle block (21) with a first end capable of joggling with the sliding block (4), wherein the joggle block (21) forms a joggle inclination angle of 12 degrees.
4. The high accuracy hydraulic chuck according to claim 3, wherein the tightening slide (41) is located between the joggle block (21) and the core sleeve (5).
5. The high accuracy hydraulic chuck according to claim 4, characterized in that the axial degree of freedom limiting member (10) is a nut cap (9), the nut cap (9) being provided on the plate body (3).
6. The high precision hydraulic chuck according to claim 2, characterized in that the slide (4) is connected to the soft jaws (11) by means of a T-nut (6).
7. The high accuracy hydraulic chuck according to claim 1, characterized in that the first end of the body (3) is provided with a dust cap (7), and the dust cap (7) is provided with a dust plug (8).
8. The high accuracy hydraulic chuck according to claim 1, wherein an over-dial (1) is attached to the second end of the body (3), the over-dial (1) being adapted to be attached to the spindle nose.
CN202221031579.4U 2022-04-29 2022-04-29 High-precision hydraulic chuck Active CN218460908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221031579.4U CN218460908U (en) 2022-04-29 2022-04-29 High-precision hydraulic chuck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221031579.4U CN218460908U (en) 2022-04-29 2022-04-29 High-precision hydraulic chuck

Publications (1)

Publication Number Publication Date
CN218460908U true CN218460908U (en) 2023-02-10

Family

ID=85134763

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221031579.4U Active CN218460908U (en) 2022-04-29 2022-04-29 High-precision hydraulic chuck

Country Status (1)

Country Link
CN (1) CN218460908U (en)

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