CN110315375B - Clamp with standard knife handle interface - Google Patents

Clamp with standard knife handle interface Download PDF

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Publication number
CN110315375B
CN110315375B CN201910656391.5A CN201910656391A CN110315375B CN 110315375 B CN110315375 B CN 110315375B CN 201910656391 A CN201910656391 A CN 201910656391A CN 110315375 B CN110315375 B CN 110315375B
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Prior art keywords
clamping
handle
tool
piston
wedge block
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CN201910656391.5A
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CN110315375A (en
Inventor
杜长林
王连炀
宫兴林
王峰
李迎华
李少智
张辉
胡丹
宋明山
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Dalian Kede Numerical Control Co Ltd
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Dalian Kede Numerical Control Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
  • Gripping On Spindles (AREA)

Abstract

The invention discloses a clamp with a standard tool shank interface, which comprises a clamping handle, an execution part and a clamping jaw, wherein the clamping handle is fixed on the execution part and is of a standard tool shank structure which can be connected with a machine tool spindle; the pneumatic clamping device comprises a clamping handle, a clamping jaw, a pneumatic execution component, a clamping handle and a tool spindle, wherein the clamping handle and the execution component are provided with gas channels, when the clamping handle is connected with the tool spindle, a tool loosening and blowing interface/a tool inner cooling interface of the tool spindle can drive the pneumatic execution component to move through the gas channels, and the pneumatic execution component drives the clamping jaw to move so as to clamp a workpiece. The fixture does not need an independent driving device, the structure of the machine tool can be simplified, and meanwhile, the fixture can be placed in a tool magazine when not working, so that the volume occupied by the fixture is reduced.

Description

Clamp with standard knife handle interface
Technical Field
The invention relates to the technical field of machine tool fixtures, in particular to a fixture with a standard tool shank interface.
Background
The jig is a device for fixing a machining object to occupy a correct position in a machine manufacturing process, and is broadly called a jig for quickly, conveniently and safely mounting a workpiece in any process. In particular, in the field of machine tools, a clamp is frequently used for conveying a machined workpiece, and an existing clamp for a machine tool needs an independent clamping and driving device for installing the clamp and driving the clamp to complete conveying and transferring of the workpiece, so that the machine tool is complex in structure, large in size and inconvenient to install and maintain.
Disclosure of Invention
The invention provides a clamp with a standard tool shank interface, which is used for solving the problems of complex machine tool structure, inconvenience in installation and maintenance caused by the fact that an independent driving device is needed in the existing machine tool clamp.
The technical means adopted by the invention are as follows:
a clamp with a standard tool shank interface comprises a clamping handle, an execution part and a clamping jaw, wherein the clamping handle is fixed on the execution part and is of a standard tool shank structure capable of being connected with a machine tool spindle; the pneumatic clamping device comprises a clamping handle, a clamping jaw, a pneumatic execution component, a clamping handle and a tool spindle, wherein the clamping handle and the execution component are provided with gas channels, when the clamping handle is connected with the tool spindle, a tool loosening and blowing interface/a tool inner cooling interface of the tool spindle can drive the pneumatic execution component to move through the gas channels, and the pneumatic execution component drives the clamping jaw to move.
Further, the executing component comprises a clamp body, a piston, a spring and a wedge structure;
the clamping handle is fixed at the middle position of the upper side of the clamp body, piston cavities are formed in two ends of the clamp body, the pistons are arranged in the piston cavities, and the gas channel is formed in the clamping handle and the clamp body;
the wedge block structure comprises a fixed wedge block and a movable wedge block, the fixed wedge block is fixed on a piston rod of the piston, the upper part of the movable wedge block is of a T-shaped structure, a cylindrical protrusion is arranged on the T-shaped structure, a T-shaped groove is formed in the lower side of the clamp body, the T-shaped structure is arranged in the T-shaped groove, the spring is arranged on the lower side of the clamp body, two ends of the spring are respectively sleeved on the cylindrical protrusion, and the clamping jaw is fixed on the movable wedge block;
when the clamping handle is connected with the machine tool spindle, the piston is driven by the tool loosening air blowing interface/the tool internal cooling interface of the machine tool spindle to move downwards through the gas channel, the piston drives the fixed wedge block to move downwards, the fixed wedge block drives the movable wedge block to move towards the middle of the clamp body through the wedge surface and compress the spring, so that the clamping jaws move oppositely to clamp a workpiece, when the piston is stopped being driven by the tool loosening air blowing interface/the tool internal cooling interface of the machine tool spindle, the movable wedge blocks at the two ends can be driven by the restoring force of the spring to move backwards, and the piston is driven to move upwards through the fixed wedge block, so that the piston is reset.
Further, the clamping jaw is a V-shaped clamping jaw.
Compared with the prior art, the clamp with the standard knife handle interface has the following beneficial effects: 1. this anchor clamps have standard handle of a knife structure can be convenient for be connected with the lathe main shaft, and the main shaft of lathe can directly snatch anchor clamps, and does not need the centre to add transition flange, and is more convenient, and labour saving and time saving has improved work efficiency simultaneously, owing to there is the standard handle of a knife, anchor clamps can be placed in the tool magazine, can be like the tool changing, snatch anchor clamps from the tool magazine, do not need to place alone, save space. 2. The whole clamp has no extra power source, an additional air connecting pipe is not needed, the only power is that when the main shaft grabs the clamp, the center in the main shaft is discharged with water, and the clamp is reset through a spring, so that the whole mechanism is simple, and the installation and maintenance are easier.
Drawings
FIG. 1 is an overall block diagram of the fixture with a standard tool shank interface disclosed in the present invention;
FIG. 2 is an internal structural view of the fixture with a standard tool shank interface disclosed in the present invention;
FIG. 3 is a structural view of a second driving block;
FIG. 4 is a view at C-C of FIG. 2, showing only the connection of the clamp body to the moving wedge.
In the figure: 1. a clamping handle; 2. the clamp comprises an execution part 20, a clamp body 200, a piston cavity 201, a T-shaped groove 202, a gas channel 21, a piston 22, a spring 23, a wedge structure 230, a fixed wedge 231, a movable wedge 232, a T-shaped structure 233, a cylindrical protrusion 3 and a clamping jaw.
Detailed Description
As shown in fig. 1 and 2, the clamp with a standard shank interface disclosed in the present invention includes a clamping shank 1, an actuating member 2, and a clamping jaw 3, in this embodiment, the clamping jaw 3 is a V-shaped clamping jaw, the specific form of the clamping jaw may be selected according to the requirement, the clamping workpieces are different, and the types of the clamping jaws are different.
The clamping handle 1 is a standard handle structure which can be connected with a machine tool spindle, the standard handle structure can be a BT handle structure or an HSK handle structure, and can also be other standard handle structures, and the standard handle structure can be selected specifically according to the form of the machine tool spindle.
The pneumatic clamping device is characterized in that the executing component 2 is a pneumatic executing component, the clamping jaw 3 is installed on the executing component 2, the clamping handle 1 and the executing component 2 are provided with gas channels 202, when the clamping handle 1 is connected with a machine tool spindle, a tool loosening and air blowing interface/a tool inner cooling interface (air which is discharged from the center of the spindle) of the machine tool spindle can drive the pneumatic executing component to move through the gas channels, and the pneumatic executing component drives the clamping jaw to move.
The working process of the machine tool with the clamp disclosed by the invention is as follows: when a machine tool processes a workpiece, a tool is arranged on a main shaft of the machine tool, and the clamping handle of the clamp disclosed by the invention is of a standard tool holder structure, so that the clamp can be placed in a tool magazine of the machine tool. When a workpiece (blank) needs to be conveyed by using the clamp, the machine tool spindle moves to the tool magazine to place a tool in the tool magazine, then the machine tool spindle is connected with the clamp, the clamp is moved to a processing area (to-be-processed area) by controlling the machine tool spindle, the movement of the pneumatic executive component is controlled by the tool loosening air blowing interface/tool internal cooling interface of the machine tool spindle, the movement of the clamping jaw is further driven, the clamping jaw can clamp the workpiece (blank), the workpiece (blank) is transferred to a finished product storage area (processing area) by the machine tool spindle, and then the clamp is placed in the tool magazine by the machine tool spindle. The clamp is provided with a standard tool shank structure, so that the clamp can be conveniently connected with a machine tool spindle; the clamping handle and the tool body are provided with air channels, so that the clamping jaw can be directly driven to work through a tool loosening air blowing interface/a tool inner cooling interface of a machine tool spindle without an additional driving device, and the machine tool structure is simplified; the clamp is provided with the standard tool shank interface, so that the clamp can be placed in a tool magazine of a machine tool when not in use, and the size of the machine tool is saved.
Further, the actuating component 2 comprises a clamp body 20, a piston 21, a spring 22 and a wedge structure 23; the clamping handle 1 is fixedly installed at the middle position of the upper side of the clamp body 20, a sealing ring is arranged between the clamping handle 1 and the clamp body 20 and used for preventing air leakage, piston cavities 200 are arranged at two ends of the clamp body 20, the piston 21 is arranged in the piston cavity 200, and the gas channel 202 (an air inlet hole is formed in the clamping handle) is arranged on the clamping handle 1 and the clamp body 20.
The wedge structure 23 includes a fixed wedge 230 and a movable wedge 231, the fixed wedge 230 is fixed on the piston rod of the piston 21 by a screw, the fixed wedge 230 and the movable wedge 231 contact with each other by wedge surfaces, as shown in fig. 3 and 4, the upper portion of the movable wedge 231 is a T-shaped structure 232, a cylindrical protrusion 233 is arranged on one side surface of the T-shaped structure 232 facing the middle portion of the clamp body, a T-shaped groove 201 is arranged on the lower side of the clamp body 20, the T-shaped structure 232 is arranged in the T-shaped groove 201, the spring 22 is arranged on the lower side of the clamp body 20, two ends of the spring are respectively sleeved on the cylindrical protrusion 233 of the movable wedge on two sides, and the clamp jaw 3 is fixed on the movable wedge 231 by a screw;
when the clamping handle 1 is connected with a machine tool spindle, air is supplied to a tool loosening air blowing interface/a tool internal cooling interface of the machine tool spindle and enters a piston cavity 200 through an air channel 202 to drive the piston 21 to move downwards, the piston 21 drives the fixed wedge block 230 to move downwards, the fixed wedge block 230 drives the movable wedge block 231 to move towards the middle direction (the direction shown by the arrow B-B in fig. 2) of the clamp body through a wedge surface and compress a spring, so that the clamping jaws move oppositely to clamp a workpiece, when the air supply to the tool loosening air blowing interface/the tool internal cooling interface of the machine tool spindle is stopped, the restoring force of the spring can drive the movable wedge blocks at two ends to move backwards (the direction shown by the arrow A-A in fig. 2), the movable wedge block pushes the fixed wedge block through the wedge surface and further drives the piston to move upwards, and the resetting of the piston is realized. Because the wedge block structure is arranged in the execution component, the wedge block has an increasing effect, and the clamping force of the clamping jaw is increased, so that the clamping jaw can obtain larger clamping force through a smaller force control piston.
Furthermore, both sides of the T-shaped structure on the upper portion of the movable wedge block are provided with cylindrical protrusions, the cylindrical protrusions close to one side of the spring can be used for clamping the spring, and the cylindrical protrusions on the other side can limit the movable wedge block when the movable wedge block moves.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (2)

1. The utility model provides a anchor clamps with standard handle of a knife interface, includes, centre gripping handle, executive component and clamping jaw, the centre gripping handle is fixed on the executive component, its characterized in that:
the clamping handle is a standard handle structure which can be connected with a machine tool spindle;
the pneumatic clamping device comprises a clamping handle, a clamping jaw, a pneumatic execution component, a clamping handle and a tool inner cooling interface, wherein the execution component is a pneumatic execution component, the clamping jaw is arranged on the execution component, gas channels are arranged on the clamping handle and the execution component, when the clamping handle is connected with a machine tool spindle, the pneumatic execution component can be driven to move by the tool loosening and blowing interface/the tool inner cooling interface of the machine tool spindle through the gas channels, and the clamping jaw is driven to move by the pneumatic execution component;
the executing component comprises a clamp body, a piston, a spring and a wedge block structure;
the clamping handle is fixed at the middle position of the upper side of the clamp body, piston cavities are formed in two ends of the clamp body, the pistons are arranged in the piston cavities, and the gas channel is formed in the clamping handle and the clamp body;
the wedge block structure comprises a fixed wedge block and a movable wedge block, the fixed wedge block is fixed on a piston rod of the piston, the upper part of the movable wedge block is of a T-shaped structure, a cylindrical protrusion is arranged on the T-shaped structure, a T-shaped groove is formed in the lower side of the clamp body, the T-shaped structure is arranged in the T-shaped groove, the spring is arranged on the lower side of the clamp body, two ends of the spring are respectively sleeved on the cylindrical protrusion, and the clamping jaw is fixed on the movable wedge block;
when the clamping handle is connected with the machine tool spindle, the piston is driven by the tool loosening air blowing interface/the tool internal cooling interface of the machine tool spindle to move downwards through the gas channel, the piston drives the fixed wedge block to move downwards, the fixed wedge block drives the movable wedge block to move towards the middle of the clamp body through the wedge surface and compress the spring, so that the clamping jaws move oppositely to clamp a workpiece, when the piston is stopped being driven by the tool loosening air blowing interface/the tool internal cooling interface of the machine tool spindle, the movable wedge blocks at the two ends can be driven by the restoring force of the spring to move backwards, and the piston is driven to move upwards through the fixed wedge block, so that the piston is reset.
2. The clamp with a standard tool shank interface of claim 1, wherein: the clamping jaw is a V-shaped clamping jaw.
CN201910656391.5A 2019-07-19 2019-07-19 Clamp with standard knife handle interface Active CN110315375B (en)

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Application Number Priority Date Filing Date Title
CN201910656391.5A CN110315375B (en) 2019-07-19 2019-07-19 Clamp with standard knife handle interface

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Application Number Priority Date Filing Date Title
CN201910656391.5A CN110315375B (en) 2019-07-19 2019-07-19 Clamp with standard knife handle interface

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CN110315375B true CN110315375B (en) 2021-04-06

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3215899A1 (en) * 1982-04-29 1983-11-03 Paul Forkardt GmbH & Co KG, 4000 Düsseldorf Power-operated swivel chuck
JPH08257965A (en) * 1995-03-29 1996-10-08 Nec Corp Absorption hand
JP2001150209A (en) * 1999-11-22 2001-06-05 Howa Mach Ltd Workpiece phase determining device and chuck
CN201432254Y (en) * 2009-04-16 2010-03-31 宁波永享铜管道有限公司 Self-centering clamp
CN202763554U (en) * 2012-08-20 2013-03-06 联德机械(杭州)有限公司 Hydraulic chuck
CN202963308U (en) * 2012-12-07 2013-06-05 广州华德汽车弹簧有限公司 Pneumatic sliding rail parallel clip used for clamping wire rods
CN103785873A (en) * 2014-02-14 2014-05-14 哈尔滨工业大学 Precise pneumatic chuck
CN105217305A (en) * 2015-10-16 2016-01-06 陈思奇 A kind of compact conformation failure-free clamping equipment
CN106395364A (en) * 2016-11-16 2017-02-15 南通职业大学 Transposition mechanical arm for hose body printing
CN207841356U (en) * 2017-12-13 2018-09-11 浙江梵煜电子科技有限公司 A kind of total closed type hydraulic pressure clamping jaw
CN208438350U (en) * 2018-06-23 2019-01-29 深圳环城自动化设备有限公司 A kind of vacuum gripping jaw of abnormal shape plug-in machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204725504U (en) * 2015-06-08 2015-10-28 邝锦富 A kind of mechanical paw
CN109015721B (en) * 2018-09-25 2020-09-29 深圳市伙伴气动精密机械有限公司 Micro clamping finger cylinder and driving method thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3215899A1 (en) * 1982-04-29 1983-11-03 Paul Forkardt GmbH & Co KG, 4000 Düsseldorf Power-operated swivel chuck
JPH08257965A (en) * 1995-03-29 1996-10-08 Nec Corp Absorption hand
JP2001150209A (en) * 1999-11-22 2001-06-05 Howa Mach Ltd Workpiece phase determining device and chuck
CN201432254Y (en) * 2009-04-16 2010-03-31 宁波永享铜管道有限公司 Self-centering clamp
CN202763554U (en) * 2012-08-20 2013-03-06 联德机械(杭州)有限公司 Hydraulic chuck
CN202963308U (en) * 2012-12-07 2013-06-05 广州华德汽车弹簧有限公司 Pneumatic sliding rail parallel clip used for clamping wire rods
CN103785873A (en) * 2014-02-14 2014-05-14 哈尔滨工业大学 Precise pneumatic chuck
CN105217305A (en) * 2015-10-16 2016-01-06 陈思奇 A kind of compact conformation failure-free clamping equipment
CN106395364A (en) * 2016-11-16 2017-02-15 南通职业大学 Transposition mechanical arm for hose body printing
CN207841356U (en) * 2017-12-13 2018-09-11 浙江梵煜电子科技有限公司 A kind of total closed type hydraulic pressure clamping jaw
CN208438350U (en) * 2018-06-23 2019-01-29 深圳环城自动化设备有限公司 A kind of vacuum gripping jaw of abnormal shape plug-in machine

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