CN105058164A - Force measuring device of cutter clamping system of machining center - Google Patents

Force measuring device of cutter clamping system of machining center Download PDF

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Publication number
CN105058164A
CN105058164A CN201510415936.5A CN201510415936A CN105058164A CN 105058164 A CN105058164 A CN 105058164A CN 201510415936 A CN201510415936 A CN 201510415936A CN 105058164 A CN105058164 A CN 105058164A
Authority
CN
China
Prior art keywords
force measuring
keeper
oil cylinder
cutters
displacement piece
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.)
Pending
Application number
CN201510415936.5A
Other languages
Chinese (zh)
Inventor
马俊韬
张维权
富贺
赵臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Aviation Power Co Ltd
Original Assignee
Xian Aviation Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xian Aviation Power Co Ltd filed Critical Xian Aviation Power Co Ltd
Priority to CN201510415936.5A priority Critical patent/CN105058164A/en
Publication of CN105058164A publication Critical patent/CN105058164A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/002Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
    • B23Q17/005Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
    • 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
    • B23Q2717/00Arrangements for indicating or measuring
    • B23Q2717/006Arrangements for indicating or measuring in milling machines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention discloses a force measuring device of a cutter clamping system of a machining center. The force measuring device of the cutter clamping system of the machining center comprises a force measuring part, a positioning part and a displacement part, wherein the positioning part is used for being positioned with a taper hole of a spindle; the displacement part is mounted at the front end of the positioning part; the taper of the positioning part is equal to that of a spindle cutter; the rear end of the positioning part is connected with the force measuring part; a hollow oil cylinder is arranged inside the force measuring part; a piston is arranged inside the oil cylinder; a piston rod penetrates through the positioning part to be connected with the rear end of the displacement part; a blind rivet for driving the displacement part to move is mounted at the front end of the displacement part; the rear end of the force measuring part is sealed through an end cover; a pressure gauge for displaying oil pressure in the oil cylinder is connected with the force measuring part. The force measuring device is used for detecting the clamping force of automatic cutter clamping systems of various machining centers and numerical control mill machines, avoiding usage safety problems caused by clamping force decrease of the clamping systems and meanwhile, bringing convenience to maintaining of the device.

Description

A kind of Cutters In Mc grasping system device for measuring force
[technical field]
The invention belongs to device for measuring force technical field, relate to a kind of Cutters In Mc grasping system device for measuring force.
[background technology]
CNC milling machine, numerical control machining center cutter accommodate, and generally adopt disk spring type mechanical grip mode, have structure simple, reliable clamping, popularize the advantages such as extensive.But after this structure Long-Time Service, easily there is tired generation and be out of shape or breakage in disk spring, this just causes disk spring pretightning force and declines, cutter accommodates mechanism and accommodates power deficiency, equipment adds makes cutter produce vibration man-hour, gently then causes product quality problem, heavy then can produce use safety problem.When processing this type of failure problems, which kind of degree the clamping device after repairing, should be tightened in advance by dish, stressedly to meet the requirements after cutter just can be made to clamp.As maintenance department of basic unit of enterprise, maintenance personal, for problems, owing to lacking instrumentation, keeps in repair substantially by rule of thumb, and pretightning force is often estimated inaccurate, and strength is excessive, and accommodating mechanism cannot open, strength deficiency impact safe handling.
[summary of the invention]
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of Cutters In Mc grasping system device for measuring force, this device can react the blessing power of cutter really, provides true quantized data to the maintenance of equipment cutter holding device.
For achieving the above object, the present invention is achieved by the following technical solutions:
A kind of Cutters In Mc grasping system device for measuring force, comprises dynamometry part, for the keeper of locating with spindle taper hole and the displacement piece being installed on keeper front end, the tapering of keeper is identical with the tapering of main axle cutter; The rear end of keeper is connected with dynamometry part, and the inside of dynamometry part is the oil cylinder of hollow, and inside arranges piston, and piston rod is connected with the rear end of displacement piece through keeper; The blind rivet for driving displacement piece movement is installed in the front end of displacement piece; End cap seal is passed through in the rear end of dynamometry part; Dynamometry part is connected with the Pressure gauge for showing oil pressure in oil cylinder.
The present invention further improves and is:
The tapering of described keeper is 7:24, and positioning reference plane accounts for 2/3rds of cone whole length.
Described piston rod is connected threadably with displacement piece.
Described piston and piston rod are all sealed by V-seal part.
Described end cap is sealed by O type circle.
The side of described dynamometry part is connected with for the unidirectional pressurization unloader to injection liquid force feed in oil cylinder.
Compared with prior art, the present invention has following beneficial effect:
Keeper of the present invention is identical with universal cutter tapering, front end connects displacement piece, during use, dynamometer taper shank is directly installed in the spindle taper hole of main shaft, the now disk spring forced compression of clamping device, drives pull bar tension pulling claw, pulling claw is linked closely dynamometer blind rivet, blind rivet makes displacement piece be subject to outside tractive force, make displacement piece produce a micro-displacement L, displacement piece moves and drives pitch brace simultaneously, and pull bar drives piston synchronous to produce displacement L.The displacement of piston creates pressure F to in-oil cylinder hydraulic oil, and this pressure, due to the effect of V-seal part, is directly presented on Pressure gauge.Pressure gauge show value is unit area pressure, is exactly the clamping force of clamping device with the product of plunger designs lifting surface area.Structure of the present invention is comparatively simple, only has machinery and hydraulic structure, and owing to using as dynamometry, the positioning accuracy request of its conical surface is lower, does not need the high manufacturing accuracy of taper tool shanks, to material also without the requirement of special envoy, only has certain required precision to hydraulic cylinder.So kind instrument all can be made by oneself as general enterprise, be convenient to popularize.
[accompanying drawing explanation]
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the present invention's schematic diagram in use.
Wherein: 1 is blind rivet; 2 is displacement piece; 3 is keeper; 4 is piston; 5 is Pressure gauge; 6 is V-seal part; 7 is end cap; 8 is O type circle; 9 is unidirectional pressurization unloader; 10 is piston rod; 11 is dynamometry part; 12 is main shaft; 13 is spindle taper hole; 14 is pulling claw; 15 is disk spring; 16 is pull bar.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, the present invention includes dynamometry part 11, for the keeper 3 of locating with spindle taper hole and the displacement piece 2 being installed on keeper 3 front end, the tapering of keeper 3 is identical with the tapering of main axle cutter, the tapering of keeper 3 is 7:24, and positioning reference plane accounts for 2/3rds of cone whole length.The rear end of keeper 3 is connected with dynamometry part 11, and the inside of dynamometry part 11 is the oil cylinder of hollow, and inside arranges piston 4, and piston rod 10 is connected with the rear end of displacement piece 2 threadably through keeper 3; Piston 4 and piston rod 10 are all sealed by V-seal part 6.The blind rivet 1 for driving displacement piece 2 movement is installed in the front end of displacement piece 2; The rear mounting end lid 7 of dynamometry part 11, and sealed by O type circle 8; Dynamometry part 11 is connected with the Pressure gauge 5 for showing oil pressure in oil cylinder, the side of dynamometry part 11 is connected with for the unidirectional pressurization unloader 9 to injection liquid force feed in oil cylinder.
Structural principle of the present invention:
The main axle cutter tapering of CNC milling machine or machining center is 7:24 form, is divided into DAT-30, DAT-40, DAT-50 equidimension.Utilize the tapering size of 7:24, design the measuring tool that an appearance and size is identical with handle of a knife, be directly loaded on spindle taper hole in use, the blessing power of cutter can be measured.The present invention is divided into dynamometry part 11, keeper 3, displacement piece 2 three part to form (see Fig. 1) in general structure.Displacement piece 2 is connected with blind rivet 1, and the stressed rear blind rivet 1 of cutter clamping can drive displacement piece 2 to produce microdisplacement.Keeper 3 outward appearance tapering is 7:24, and cone is identical with universal cutter tapering, is used for locating with spindle taper hole during measurement; Positioning reference plane accounts for 2/3rds of cone whole length.Its apparent size of dynamometry part 11 is greater than keeper, and inside is designed to cylinder structure, and area is 100cm2 or 50cm2, and built-in piston 4 is connected with displacement piece 2 threadably by piston rod 10, and piston 4 realizes sealing by V-seal 6 and oil cylinder with piston rod 10.Oil cylinder rear end realizes sealing with extraneous by end cap 7 and O type circle 8.Oil cylinder outer end is connected with Pressure gauge 5 and unidirectional pressurization unloader 9, for showing clamping pressure box oil cylinder preload.
As shown in Figure 2, before using, utilize hand oil pump by unidirectional pressurization unloader 9 to preload in oil cylinder, make hydraulic oil be full of dynamometer oil cylinder, close unidirectional pressurization unloader 9 and close oil cylinder.During use, dynamometer taper shank is directly installed in the spindle taper hole 13 of main shaft 12, now disk spring 15 forced compression of clamping device, pull bar 16 is driven to strain pulling claw 14, pulling claw 14 is linked closely dynamometer blind rivet 1, and blind rivet 1 makes displacement piece 2 be subject to outside tractive force, makes displacement piece 2 produce a micro-displacement L, displacement piece 2 moves and drives pitch brace 10 simultaneously, and pull bar 10 drives piston 4 synchronously to produce displacement L.The displacement of piston 4 creates pressure F to in-oil cylinder hydraulic oil, and this pressure, due to the effect of V-seal part, is directly presented on Pressure gauge 5.Pressure gauge show value is unit area pressure, is exactly the clamping force of clamping device with the product of plunger designs lifting surface area.Can compare with the clamping force value of regulation according to the show value of power, can judge that whether blade clamping apparatus clamping force is suitable, and provide foundation accurately for repairing.
Above content is only and technological thought of the present invention is described; protection scope of the present invention can not be limited with this; every technological thought proposed according to the present invention, any change that technical scheme basis is done, within the protection domain all falling into claims of the present invention.

Claims (6)

1. a Cutters In Mc grasping system device for measuring force, it is characterized in that, comprise dynamometry part (11), for the keeper (3) of locating with spindle taper hole and the displacement piece (2) being installed on keeper (3) front end, the tapering of keeper (3) is identical with the tapering of main axle cutter; The rear end of keeper (3) is connected with dynamometry part (11), the inside of dynamometry part (11) is the oil cylinder of hollow, inside arranges piston (4), and piston rod (10) is connected through the rear end of keeper (3) with displacement piece (2); The blind rivet (1) for driving displacement piece (2) movement is installed in the front end of displacement piece (2); The rear end of dynamometry part (11) is by end cap (7) sealing; Dynamometry part (11) is connected with the Pressure gauge (5) for showing oil pressure in oil cylinder.
2. Cutters In Mc grasping system device for measuring force according to claim 1, is characterized in that, the tapering of described keeper (3) is 7:24, and positioning reference plane accounts for 2/3rds of cone whole length.
3. Cutters In Mc grasping system device for measuring force according to claim 1, is characterized in that, described piston rod (10) is connected threadably with displacement piece (2).
4. Cutters In Mc grasping system device for measuring force according to claim 1, is characterized in that, described piston (4) and piston rod (10) are all sealed by V-seal part (6).
5. Cutters In Mc grasping system device for measuring force according to claim 1, is characterized in that, described end cap (7) is sealed by O type circle (8).
6. Cutters In Mc grasping system device for measuring force according to claim 1, is characterized in that, the side of described dynamometry part (11) is connected with for the unidirectional pressurization unloader (9) to injection liquid force feed in oil cylinder.
CN201510415936.5A 2015-07-15 2015-07-15 Force measuring device of cutter clamping system of machining center Pending CN105058164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510415936.5A CN105058164A (en) 2015-07-15 2015-07-15 Force measuring device of cutter clamping system of machining center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510415936.5A CN105058164A (en) 2015-07-15 2015-07-15 Force measuring device of cutter clamping system of machining center

Publications (1)

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CN105058164A true CN105058164A (en) 2015-11-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106216734A (en) * 2016-07-31 2016-12-14 秦刚 A kind of Novel drilling-machine detecting clamping drill pressure
CN107138746A (en) * 2017-07-12 2017-09-08 重庆帅能机床制造有限公司 A kind of intelligent machine tool with insert lathe tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6464751A (en) * 1987-08-10 1989-03-10 Pauru Fuuzaa Yoozefu Method and device for measuring tool pulling force of machine tool
CN101474761A (en) * 2008-12-30 2009-07-08 洛阳轴研科技股份有限公司 Relative measurement method of main spindle broach force
CN201442191U (en) * 2009-06-14 2010-04-28 山东博特精工股份有限公司 Taper-shank dynamometer
CN104625875A (en) * 2015-03-12 2015-05-20 沈机集团昆明机床股份有限公司 Device and method for measuring broaching force in real time

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6464751A (en) * 1987-08-10 1989-03-10 Pauru Fuuzaa Yoozefu Method and device for measuring tool pulling force of machine tool
CN101474761A (en) * 2008-12-30 2009-07-08 洛阳轴研科技股份有限公司 Relative measurement method of main spindle broach force
CN201442191U (en) * 2009-06-14 2010-04-28 山东博特精工股份有限公司 Taper-shank dynamometer
CN104625875A (en) * 2015-03-12 2015-05-20 沈机集团昆明机床股份有限公司 Device and method for measuring broaching force in real time

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张纪文 等: "一种简单实用的加工中心拉刀力测试工装", 《制造技术与机床》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106216734A (en) * 2016-07-31 2016-12-14 秦刚 A kind of Novel drilling-machine detecting clamping drill pressure
CN107138746A (en) * 2017-07-12 2017-09-08 重庆帅能机床制造有限公司 A kind of intelligent machine tool with insert lathe tool
CN107138746B (en) * 2017-07-12 2023-11-28 重庆卓成机电有限公司 Intelligent machine tool with mechanical clamping type turning tool

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Application publication date: 20151118