CN107470704A - A kind of broaching tool structure - Google Patents
A kind of broaching tool structure Download PDFInfo
- Publication number
- CN107470704A CN107470704A CN201710773254.0A CN201710773254A CN107470704A CN 107470704 A CN107470704 A CN 107470704A CN 201710773254 A CN201710773254 A CN 201710773254A CN 107470704 A CN107470704 A CN 107470704A
- Authority
- CN
- China
- Prior art keywords
- broaching tool
- shafting
- pulling claw
- pull bar
- guide pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D43/00—Broaching tools
- B23D43/02—Broaching tools for cutting by rectilinear movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D39/00—Accessories for broaching machines or broaching devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses a kind of broaching tool structure, belongs to numerical control machine tool clamp field, including shafting and broaching tool component；Broaching tool component is coaxially disposed with shafting and includes pull bar and pulling claw with shafting synchronous axial system, broaching tool component；Axis of the pull bar along shafting is arranged in shafting and stretched out from shafting, and the external part and pulling claw are affixed, and pull bar can move back and forth along the axis of shafting, to drive pulling claw that shafting is stretched out or be resisted against from shafting；Pulling claw has the elastic stress shunk towards pull bar direction；Shafting is circumferentially with the broaching tool guide pad for pulling claw to be strutted toward remote shafting direction along pull bar, ensure the stability of structure, due to used part compared with existing broaching tool structure it is less, therefore the dimensional fits between part are also easier to meet uniformity, reduce the influence of loose broaching tool shaft precision, also reduce production cost and maintenance cost.
Description
Technical field
The present invention relates to a kind of numerical control machine tool clamp, more particularly to a kind of broaching tool structure.
Background technology
At present, using the shafting or lathe of HSK handle of a knifes, mainly realized using plunger tip, pulling claw, slide cores and tense handle of a knife.
But there is following defect in the existing broaching tool structure for being directed to HSK handle of a knifes：
(1) difficulty of processing is big, it is high to repeat maintenance cost, due to needing multiple parts to be engaged, it is necessary to while ensure multiple
The precision of part relevant position, and, it is necessary to which multiple part fit dimension respective changes could be really after shafting hole size changes
The tight handle of a knife in Paula；
(2) uniformity, stability are poor, only logical due to being moved each other by sizing limitation between multiple mating parts
Cross raising element precision and just may insure repetitive positioning accuracy and interchangeability, and after can not ensuring each loose broaching tool due to part
Part position does not change, thus can not ensure shafting performance.
(3) tool-broaching mechanism when the front and rear appearance of loose broaching tool is inconsistent, can cause as the rotary part inside main shaft or lathe
Shafting running accuracy changes, and can influence part life, equipment machining accuracy, and equipment has the wind of damage when shaking excessive
Danger.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of broaching tool structure, part material is utilized
Elastic deformation, positioning is contacted with handle of a knife by part after deformation, ensure the structure that handle of a knife tenses, so as to reduce difficulty of processing, protected
Demonstrate,prove repeatable accuracy.
The purpose of invention adopts the following technical scheme that realization：
A kind of broaching tool structure, including shafting and broaching tool component；The broaching tool component and the shafting be coaxially disposed and with
The shafting synchronous axial system, the broaching tool component include pull bar and pulling claw；Axis of the pull bar along the shafting is worn
Stretch out to form external part in shafting and from the shafting, the external part and the pulling claw are affixed, and the pull bar can be along the axle
The axis of system moves back and forth, to drive the pulling claw to be stretched out from the shafting or be resisted against the shafting；The pulling claw has
The elastic stress shunk towards the pull bar direction；The shafting is circumferentially with for the pulling claw is past away from institute along the pull bar
State the broaching tool guide pad that shafting direction struts.
Further, the termination of the broaching tool component is formed with unloading knife face, the pilot hole for unloading knife face and outside handle of a knife
Bottom is parallel.
Further, the broaching tool guide pad is conical structure, and the top of conical structure has round platform；The broaching tool is oriented to
Diameter of the block close to described pulling claw one end is less than diameter of the broaching tool guide pad away from described pulling claw one end.
Further, the pulling claw extends towards the pull bar length direction and end is provided with broaching tool face, the broaching tool face with
The conical surface of the broaching tool guide pad tilts tangent；The broaching tool face is used for the pilot hole phase clamping with outside handle of a knife.
Further, the pulling claw is broaching tool active face close to the one side of the broaching tool guide pad；The broaching tool active face
Move and coordinate with the male cone (strobilus masculinus) of the broaching tool guide pad.
Further, it is provided between the broaching tool active face and the pull bar and supplies at the top of the broaching tool guide pad what is supported
Limiting section.
Further, the outer rim of the shafting is additionally provided with the mounting hole for supplying outside handle of a knife insertion clamping；The pulling claw
And the broaching tool guide pad is in the mounting hole.
Further, the outer rim of the mounting hole is formed with butting section；The butting section is used to support outside handle of a knife.
Compared with prior art, the beneficial effects of the present invention are：
Pulling claw is made towards away from pull bar to drive pulling claw closer or far from broaching tool guide pad relative to shafting movement by pull bar
Direction open or shunk close to the direction of pull bar, to complete broaching tool or loose knife, using the pulling claw of flexible stress, make whole
During broaching tool, loose knife, only pulling claw deforms upon, and needs to be subjected to displacement without part in other shaftings, improves part in shafting
Fit precision, ensure the stability of structure, due to used part compared with existing broaching tool structure it is less, therefore part it
Between dimensional fits be also easier to meet uniformity, reduce the influence of loose broaching tool shaft precision, also reduce production cost
And maintenance cost.
Because pulling claw uses elastic material, therefore can be to outside handle of a knife after broaching tool by the elastic characteristic of pulling claw after broaching tool
Dimensional discrepancy between shafting compensates, and reduces the requirement to Dimension Measurement precision.
Brief description of the drawings
Fig. 1 is broaching tool structure of the present invention without outside handle of a knife view；
Fig. 2 is broaching tool structure broaching tool view of the present invention；
Fig. 3 is that broaching tool structure of the present invention unloads knife view.
In figure：10th, shafting；11st, broaching tool guide pad；111st, round platform；12nd, mounting hole；121st, butting section；20th, pull bar；21、
Unload knife face；30th, pulling claw；31st, broaching tool face；32nd, broaching tool active face；33rd, limiting section；40th, outside handle of a knife；41st, installation end；42nd, add
Work end；421st, pilot hole；422nd, flange；423rd, bottom hole.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
As Figure 1-3, the present invention provides a kind of broaching tool structure, for the assembling between HSK numerical controls handle of a knife and shafting 10
Relation, it is higher relative to existing broaching tool structural stability and uniformity, reduce the influence of the loose precision of broaching tool shaft 10,
The broaching tool structure includes shafting 10 and broaching tool component；Broaching tool component and shafting 10 be coaxially disposed and with the synchronous axial system of shafting 10,
Broaching tool component includes pull bar 20 and pulling claw 30；Axis of the pull bar 20 along shafting 10 is arranged in shafting 10 and stretched out from shafting 10
External part is formed, the external part and pulling claw 30 are affixed, and pull bar 20 can move back and forth along the axis of shafting 10, to drive pulling claw 30
Stretched out from shafting 10 or be resisted against shafting 10；Pulling claw 30 has the elastic stress shunk towards the direction of pull bar 20；Shafting 10 is along pull bar
20 are circumferentially with the broaching tool guide pad 11 for pulling claw 30 to be strutted toward the remote direction of shafting 10.
Relative to existing, for the broaching tool structure of HSK numerical control handle of a knifes, parts used by broaching tool structure of the invention
Less, production cost and maintenance cost are greatly reduced, using the pulling claw 30 of flexible stress, by pull bar 20 along shafting
10 axis directions move, to drive pulling claw 30 to be moved relative to broaching tool guide pad 11, by away from or close to broaching tool guide pad 11,
Pulling claw 30 is set to shrink or deploy toward the direction of pull bar 20, and the pilot hole 421 by deploying pulling claw 30 and outside handle of a knife 40 forms card
Connect, compared with the existing broaching tool structure combined by component assemblies such as plunger tip, pulling claw, slide cores, stability is more preferable, ensures identical
Part fit precision under, broaching tool infrastructure cost of the invention is lower, and after the completion of broaching tool, the elastic characteristic of pulling claw 30 is to outside
Gap size between handle of a knife 40 and shafting 10 compensates, and further improves structural stability, even across multiple loose broaching tool,
Also will not the internal accuracy of shaft 10 impact, improve the uniformity of shafting 10, ensure structure interchangeability.
In this example, outside handle of a knife 40 include installation end 41 and processing end 42, processing end 42 according to processing purpose difference and
With different shapes, material requirement is also different；Installation end 41 is provided with the pilot hole 421 for being used for being nested with broaching tool component,
Ring is provided with inwardly projecting flange 422 on the inside of the hole wall of pilot hole 421, and the flange 422 is used to be engaged by clamping with pulling claw 30；Position
In the bottom of pilot hole 421, formed with horizontally disposed bottom hole 423.
Formed with knife face 21 is unloaded, the bottom of pilot hole 421 for unloading knife face 21 with outside handle of a knife 40 is equal for the termination of broaching tool component
OK.Unload knife face 21 to be used to carry out Song Daoshi in broaching tool structure and outside handle of a knife 40, by driving pull bar 20 to support bottom hole 423
Top, to loose knife process power-assisted.
In order to optimize during pull bar 20 is driven, pulling claw 30 opens the switching with shrinking two states, broaching tool guide pad
11 be conical structure, and the top of conical structure has round platform 111；Diameter of the broaching tool guide pad 11 close to the one end of pulling claw 30, which is less than, to be drawn
Diameter of the knife guide pad 11 away from the one end of pulling claw 30, by the circular cone structure with taper, make pull bar 20 in driving pulling claw 30
During closer or far from broaching tool guide pad 11, pulling claw 30 moves along broaching tool guide pad 11 can be more smooth, switches the state of pulling claw 30
It is more smooth, improve stability.
Further, pulling claw 30 extends towards the length direction of pull bar 20 and end is provided with broaching tool face 31, and broaching tool face 31 is led with broaching tool
Tilted to the conical surface of block 11 tangent；Broaching tool face 31 is used for the phase clamping of pilot hole 421 with outside handle of a knife 40；Pulling claw 30 is close to broaching tool
The one side of guide pad 11 is broaching tool active face 32；Broaching tool active face 32 and the male cone (strobilus masculinus) movement of broaching tool guide pad 11 coordinate.
The limiting section 33 supported for the top of broaching tool guide pad 11 is provided between broaching tool active face 32 and pull bar 20, for working as
When pull bar 20 drives pulling claw 30 close to broaching tool guide pad 11, limiting section 33 is supported by the top of broaching tool guide pad 11,
So that the position of pulling claw 30 is relatively fixed, and the state being fully deployed in pulling claw 30.
The outer rim of shafting 10 is additionally provided with the mounting hole 12 for supplying outside handle of a knife 40 to be embedded in clamping, in broaching tool structure pair
When outside handle of a knife 40 carries out broaching tool, the installation end 41 of outside handle of a knife 40 is nested in the mounting hole 12 of broaching tool structure, to outside
Handle of a knife 40 fixes, and is formed with shafting 10 coaxial；Pulling claw 30 and broaching tool guide pad 11 are in mounting hole 12,
When broaching tool structure carries out broaching tool, pulling claw 30 and broaching tool guide pad 11 are located in the pilot hole 421 of outside handle of a knife 40 naturally.
As preferred embodiment, the outer rim of mounting hole 12 is formed with butting section 121；Butting section 121 is outer for supporting
Portion's handle of a knife 40, outside handle of a knife 40 is formed spacing.
It is in broaching tool structure without under the outside state of handle of a knife 40, pulling claw 30 is under the driving of pull bar 20, and pulling claw 30 is along pull bar
20 axis directions are mobile and continue close to broaching tool guide pad 11, and male cone (strobilus masculinus) of the broaching tool active face 32 along broaching tool guide pad 11 slides up
Move, make pulling claw 30 that elastic deformation occur, the expansion of pulling claw 30 makes broaching tool face 31 away from pull bar 20, until limiting section 33 is oriented to broaching tool
The top of block 11 is mutually supported, and reaches spacing requirement；
When broaching tool structure needs outside handle of a knife 40 to carry out broaching tool, during in broaching tool state, drive of the pulling claw 30 in pull bar 20
Under action is used, pulling claw 30 moves along the axis direction of pull bar 20 and continues remote broaching tool guide pad 11, and broaching tool active face 32 is along broaching tool
The outer cone of guide pad 11 is slid downwards, makes pulling claw 30 that elastic deformation occur, and pulling claw 30 is shunk close to pull bar 20 toward the direction of pull bar 20,
Distance reduces between making broaching tool face 31.Among outside handle of a knife 40 then is embedded in into mounting hole 12, due between broaching tool face 31 away from
From diminution, the flange 422 in mounting hole 12 can be penetrated smoothly between broaching tool face 31, until outside handle of a knife 40 and mounting hole 12 support
Relying part 121 support it is spacing after, pull bar 20 back drives, and drives pulling claw 30 to be moved along the axis direction of pull bar 20 and continues close to broaching tool
Guide pad 11, broaching tool active face 32 slide upwards along the male cone (strobilus masculinus) of broaching tool guide pad 11, make pulling claw 30 that elastic deformation, pulling claw 30 occur
Deploy toward the direction away from pull bar 20, until broaching tool face 31 is just supported with the phase of flange 422, complete broaching tool；
When broaching tool structure carries out unloading knife, under the driving of pull bar 20, pulling claw 30 moves pulling claw 30 along the axis direction of pull bar 20
Move and continue away from broaching tool guide pad 11, broaching tool active face 32 slides downwards along the outer cone of broaching tool guide pad 11, sends out pulling claw 30
Raw elastic deformation, pulling claw 30 are shunk close to pull bar 20 toward the direction of pull bar 20, broaching tool face 31 is separated with flange 422, and broaching tool face
Distance is contracted to be not enough to the state supported with flange 422 between 31, persistently drives pulling claw 30 to be led away from broaching tool with back stay 20
To block 11, persistently outside handle of a knife 40 is produced after knife face 21 is bonded with bottom hole 423 toward the work away from broaching tool structure direction until unloading
Firmly, until outside handle of a knife 40 departs from the mounting hole 12 of shafting 10, knife is unloaded in completion, then repeats the state step without outside handle of a knife 40
Suddenly.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (8)
1. a kind of broaching tool structure, including shafting and broaching tool component；The broaching tool component and the shafting be coaxially disposed and with institute
State shafting synchronous axial system, it is characterised in that：
The broaching tool component includes pull bar and pulling claw；Axis of the pull bar along the shafting is arranged in shafting and from described
Shafting stretches out to form external part, and the external part and the pulling claw are affixed, and the pull bar can be reciprocal along the axis of the shafting
It is mobile, to drive the pulling claw to be stretched out from the shafting or be resisted against the shafting；The pulling claw has towards the pull bar direction
The elastic stress of contraction；The shafting is circumferentially with for the pulling claw to be strutted toward away from the shafting direction along the pull bar
Broaching tool guide pad.
2. broaching tool structure as claimed in claim 1, it is characterised in that：The termination of the broaching tool component is formed with unloading knife face, institute
State that to unload knife face parallel with the pilot hole bottom of outside handle of a knife.
3. broaching tool structure as claimed in claim 1, it is characterised in that：The broaching tool guide pad is conical structure, conical structure
Top there is round platform；Diameter of the broaching tool guide pad close to described pulling claw one end is less than the broaching tool guide pad away from described
The diameter of pulling claw one end.
4. broaching tool structure as claimed in claim 3, it is characterised in that：The pulling claw extends towards the pull bar length direction and end
End is provided with broaching tool face, and the conical surface inclination of the broaching tool face and the broaching tool guide pad is tangent；The broaching tool face is used for and outside knife
The pilot hole phase clamping of handle.
5. broaching tool structure as claimed in claim 4, it is characterised in that：The pulling claw is close to the one side of the broaching tool guide pad
Broaching tool active face；The broaching tool active face and the male cone (strobilus masculinus) movement of the broaching tool guide pad coordinate.
6. broaching tool structure as claimed in claim 5, it is characterised in that：It is provided with and supplies between the broaching tool active face and the pull bar
The limiting section supported at the top of the broaching tool guide pad.
7. broaching tool structure as claimed in claim 1, it is characterised in that：The outer rim of the shafting is additionally provided with for supplying outside handle of a knife
The mounting hole of embedded clamping；The pulling claw and the broaching tool guide pad are in the mounting hole.
8. broaching tool structure as claimed in claim 7, it is characterised in that：The outer rim of the mounting hole is formed with butting section；It is described
Butting section is used to support outside handle of a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710773254.0A CN107470704B (en) | 2017-08-31 | 2017-08-31 | Broach structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710773254.0A CN107470704B (en) | 2017-08-31 | 2017-08-31 | Broach structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107470704A true CN107470704A (en) | 2017-12-15 |
| CN107470704B CN107470704B (en) | 2023-08-04 |
Family
ID=60603222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710773254.0A Active CN107470704B (en) | 2017-08-31 | 2017-08-31 | Broach structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107470704B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117515A (en) * | 1998-10-08 | 2000-04-25 | Makino Milling Mach Co Ltd | Tool clamping device |
| TW200740551A (en) * | 2006-04-26 | 2007-11-01 | Prec Machinery Res & Dev Ct | Champing mechanism for tool shank with pull stud |
| CN202506890U (en) * | 2012-03-12 | 2012-10-31 | 宁波海天精工机械有限公司 | Spindle pull cutter device of numerically controlled milling machine |
| CN204019231U (en) * | 2014-08-20 | 2014-12-17 | 江苏新瑞重工科技有限公司 | Machine tool accessories Extension Head broaching tool structure |
| CN207372408U (en) * | 2017-08-31 | 2018-05-18 | 广州市昊志机电股份有限公司 | A kind of broaching tool structure |
-
2017
- 2017-08-31 CN CN201710773254.0A patent/CN107470704B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117515A (en) * | 1998-10-08 | 2000-04-25 | Makino Milling Mach Co Ltd | Tool clamping device |
| TW200740551A (en) * | 2006-04-26 | 2007-11-01 | Prec Machinery Res & Dev Ct | Champing mechanism for tool shank with pull stud |
| CN202506890U (en) * | 2012-03-12 | 2012-10-31 | 宁波海天精工机械有限公司 | Spindle pull cutter device of numerically controlled milling machine |
| CN204019231U (en) * | 2014-08-20 | 2014-12-17 | 江苏新瑞重工科技有限公司 | Machine tool accessories Extension Head broaching tool structure |
| CN207372408U (en) * | 2017-08-31 | 2018-05-18 | 广州市昊志机电股份有限公司 | A kind of broaching tool structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107470704B (en) | 2023-08-04 |
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