CN106624900A - Batch machining tool for eccentric circle on main key body and machining method utilizing tool - Google Patents

Batch machining tool for eccentric circle on main key body and machining method utilizing tool Download PDF

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Publication number
CN106624900A
CN106624900A CN201611269686.XA CN201611269686A CN106624900A CN 106624900 A CN106624900 A CN 106624900A CN 201611269686 A CN201611269686 A CN 201611269686A CN 106624900 A CN106624900 A CN 106624900A
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CN
China
Prior art keywords
workpiece
clamp body
centre operation
cylindrical
batch machining
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
CN201611269686.XA
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Chinese (zh)
Inventor
姚镇波
于向东
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.)
Jinchen Machinery Co Ltd
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Jinchen Machinery Co Ltd
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Publication date
Application filed by Jinchen Machinery Co Ltd filed Critical Jinchen Machinery Co Ltd
Priority to CN201611269686.XA priority Critical patent/CN106624900A/en
Publication of CN106624900A publication Critical patent/CN106624900A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/061Work-clamping means adapted for holding a plurality of workpieces

Abstract

The invention discloses a batch machining tool for an eccentric circle on a main key body and a machining method utilizing the tool. The batch machining tool comprises a clamp body; a plurality of workpiece grooves are formed in the circumference of the clamp body along the length direction of the clamp body at intervals; positioning plates are arranged at the two ends of the clamp body; positioning grooves corresponding to the positions of the workpiece grooves are formed in the positioning plates; positioning holes are drilled in the positioning plates; positioning pins are arranged in the positioning holes; pressing plates which are used for fixing workpieces to the clamp body are also arranged on the clamp body. By adopting the structure above and adopting the tool which can clamp four workpieces simultaneously, the four workpieces can be machined simultaneously; the production efficiency is greatly improved; the workpieces are clamped and positioned accurately, so that a machining process does not totally depend on professional quality and fortune of an operator; therefore, the workpiece quality is high in controllability, and the product quality is very stable.

Description

The batch machining frock and the processing method using the frock of off-centre operation on major key body
Technical field:
The present invention relates on a kind of major key body off-centre operation batch machining frock and the processing method using the frock, belong to Machining technique field.
Background technology:
In recent years, national automobile industry development was rapid, and consumer proposes higher requirement to the quality of automobile product, adjoint And come be exactly that required precision of the sedan limousine to forging equipment is more and more tighter, forging and stamping manufacturing competition also increasingly swash It is strong.Therefore, the running precision of the forging equipments such as punching machine how is improved, is that each forging equipment manufacturer is required for conscientiously The problem of research.
It is the equipment vital part that master is healthy and strong in closed type single point press positive clutch, and the part eccentric throw is big, shape Complexity, traditional process route is:Rough forging-line-boring machine milling both ends of the surface, centering-rough turn-modifier treatment- Half smart car-rough mill-quench-grind.In conventional processes, rough forging need to be by the cylindrical forgings of Φ 150, and after rough turn Two ends technique head need to be retained, for ensureing the centre bore required in smart car and grinding, clamped one time can only process one, life Produce less efficient;The clamping operation of workpiece is completely dependent on the professional quality and fortune of operative employee in process, therefore is processed The workpiece quality poor controllability for going out, the quality of product is very unstable, simultaneously as during processing workpiece rigidity compared with Difference, the situation that workpiece deformation easily occurs, causes waste product, and to production puzzlement is brought.
The content of the invention:
The invention provides on a kind of major key body off-centre operation batch machining frock and the processing method using the frock, adopt With the frock for being capable of simultaneously four workpiece of clamping, four workpiece can be processed simultaneously, substantially increase production efficiency;It is right Process is caused no longer to fully rely on the professional quality and fortune of operative employee in the accurate clamping and positioning of workpiece so that workpiece Quality controllability it is strong, the quality of product is sufficiently stable;Meanwhile, fixation is played to workpiece during clamping, it is to avoid workpiece exists There is the situation about deforming because rigidity is poor during processing, it is to avoid the generation of waste product, bring convenience to production, Solve problems of the prior art.
The present invention is for the solution technical scheme that adopted of above-mentioned technical problem:
The batch machining frock of off-centre operation on a kind of major key body, including clamp body, along clamp body on the circumference of clamp body Length direction be interval with several workpiece slots, be provided with location-plate at the two ends of clamp body, be provided with location-plate and workpiece The relative locating slot of groove location, is drilled with location hole on location-plate, alignment pin is loaded in location hole, be also equipped with clamp body by Workpiece is fixed on the pressing plate on clamp body.
The workpiece slot is 4.
The locating slot is 4.
The pressing plate is 4, is arranged on clamp body by bolt.
The processing method of the batch machining frock of off-centre operation, comprises the following steps that on a kind of utilization major key body:
A, raw material is cut to slightly larger than given size length, and modifier treatment, then the two ends to raw material are carried out to raw material Face carries out turning, and turning bores two ends centre bore to given size length.
B, by the workpiece after turning be arranged on lathe on adopt two top clampings, full car is carried out to workpiece each cylindrical and right Maximum cylindrical and minimum cylindrical reservation allowance, remaining is machined to given size;
C, workpiece is fixed on milling machine, the flat horizontal surface at workpiece two ends is slightly washed, and retain allowance;
D, by clamping workpiece on cylindrical grinder, maximum cylindrical and minimum cylindrical on workpiece is roughly ground, and roughly grind To the margin of tolerance of given size;
E, the flat horizontal surface that both ends of the surface are roughly ground using surface grinding machine, it is ensured that two ends are symmetrical;
F, by 4 workpiece be arranged on major key body on off-centre operation batch machining frock on, step is as follows:
(1) bolt of pressing plate is unclamped, all pressing plates is rotated to the axial direction of frock, workpiece will have been roughly ground and used its two ends Flat horizontal surface positioned, in being put into the workpiece slot of clamp body;
(2) rotary pressure plate to workpiece vertical direction, tighten bolt, make pressing plate workpiece pressing;
(3) processing tool is arranged on lathe;
G, thick, half smart car off-centre operation, and retain off-centre operation to the allowance of workpiece center of circle distance;
H, pincers worker circular arc everywhere;
I, heat treatment:Quenching HRC52-57;
J, by D, E step mill is each cylindrical and the flat margin of tolerance to given size in;
K, by workpiece positioning loaded on grinding machine, and off-centre operation is ground.
The present invention adopts said structure, using the frock for being capable of four workpiece of clamping simultaneously, can be simultaneously to four workpiece It is processed, substantially increases production efficiency;For the accurate clamping and positioning of workpiece cause process no longer to fully rely on The professional quality and fortune of operative employee so that the quality controllability of workpiece is strong, and the quality of product is sufficiently stable;Meanwhile, during clamping Fixation is played to workpiece, it is to avoid workpiece occurs during processing situation about deforming because rigidity is poor, The generation of waste product is avoided, is brought convenience to production;The own characteristic of the processing tool effectively utilizes work piece, making is got up It is relatively simple, reduce production cost.
Description of the drawings:
Fig. 1 is the batch machining tool structure schematic diagram of off-centre operation on the major key body of the present invention;
Fig. 2 is A-A in Fig. 1 of the present invention to cross section structure diagram;
Fig. 3 is the right side structural representation of Fig. 1 of the present invention;
Fig. 4 is the structural representation of location-plate of the present invention;
Fig. 5 is the structural representation of present clip body;
In figure, 1, clamp body, 101, workpiece slot, 2, pressing plate, 3, bolt, 4, location-plate, 401, locating slot, 402, positioning Hole, 5, workpiece, 6, alignment pin.
Specific embodiment:
Clearly to illustrate the technical characterstic of this programme, below by specific embodiment, and with reference to its accompanying drawing, to this It is bright to be described in detail.
As Figure 1-5, on a kind of major key body off-centre operation batch machining frock, including clamp body 1, in clamp body 1 Length direction on circumference along clamp body is interval with several workpiece slots 101, and at the two ends of clamp body 1 location-plate 4 is provided with, Location-plate 4 is provided with the locating slot 401 relative with the position of workpiece slot 101, location hole 402 is drilled with location-plate 4, in location hole Load alignment pin 6 in 402, the pressing plate 2 being fixed on workpiece on clamp body 1 is also equipped with clamp body 1.
The workpiece slot 101 is 4.
The locating slot 401 is 4.
The pressing plate 2 is 4, is arranged on clamp body 1 by bolt.
In the manufacturing process of processing tool, need 2 location-plate interior angle screws loaded on clamp body, with roughly grinding Workpiece two ends flat horizontal surface centering two ends locating slot, static balance is then done on lathe, if lay particular stress on if take on clamp body The method for boring lightening hole, it is ensured that rotation is cut and tested to processing tool up to balance, last trial cut.
A kind of processing method using using batch machining frock:
By taking the processing method that master in closed type single point press positive clutch is healthy and strong as an example, processing method is as follows:
The long 410mm of T9 round steel of A, sawing machine blanking Φ 70mm, modifier treatment ensures length in C630 lathe cars both ends of the surface 405mm, beat two ends centre bore.
B, two top clampings, full car is each cylindrical, cylindrical equal allowance 1.2mm of wherein Φ 60f9, Φ 20h7, and remaining is to figure acceptance of the bid The size of note.
C, on X62W milling machines, using dividing head, top clamping, it is flat to rough mill two ends 20h7, allowance 1.2mm
D, on M1432A grinding machines two top clampings, Φ 60f9, Φ 20h7 are cylindrical to Φ 61 for corase grind-0.02 -0.04mm、Φ21-0.02 -0.04mm。
E, M7130 surface grinding machines adopt mold clamping, corase grind two ends 20h7 it is flat to 21-0.02 -0.04Mm, it is ensured that two ends pair Claim.
F, by 4 workpiece be arranged on major key body on off-centre operation batch machining frock on, step is as follows:
(1) bolt 3 of pressing plate 2 is unclamped, all pressing plates 2 is rotated to the axial direction of frock, workpiece 5 will have been roughly ground and used it The flat horizontal surface at two ends is positioned, in being put into the workpiece slot 101 of clamp body 1;
(2) rotary pressure plate 2 to the vertical direction of workpiece 5, tighten bolt 3, make the workpiece pressing 5 of pressing plate 2;
(3) processing tool is arranged on lathe;
G, thick, half smart car off-centre operation, it is ensured that off-centre operation is to the workpiece center of circle apart from allowance 0.7-0.8mm.
H, pincers worker carry out chamfered to circular arc everywhere.
I, heat-treatment quenching HRC52-57.
J, by D, E step grind it is each cylindrical and flat to drawing size.
K, by 4 so that Φ 60f9 are cylindrical and the flat positioning of 20h7 is loaded in fixture for grinding machine, R75 off-centre operations are ground.
The dimensional accuracy of the off-centre operation on the major key body processed using the method is checked:
From part analysis itself, R75 ± 0.06 size cannot direct measurement, can only obtain indirectly, so only by chi Very little chain calculating come determine four holes position diameter tolerance range.
According to part in fixture four scheme of installations, chain figure can be drawn to scale, be calculated as follows:In the dimension link Primary data R1=0A=0B=OC=OD=68, R2=Φ 60H5 ÷ 2=30+0.065mm, A1=37 ± 0.05mm, e=± 0.01mm (this is alignment error of the fixture on lathe), A ∑s=R75 ± 0.05mm, this is closed-loop, and row Size calculation is public Formula:
A∑max=R1max+A1max-R2min-emin
A∑min=R1min+A1min-R2max-emax
R1=68 ± 0.03mm is solved above, and in order that R75 ± 0.06mm does not make in process it exceed precision Scope, by the tolerance range boil down to R1=68 ± 0.02mm of R1, obtaining R75 ± 0.05mm. with above formula dimension chain calculating can see Go out, the calculating after compression both ensure that the margin of tolerance of former R75, difficulty of processing will not be increased again, it is clear that be feasible.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art For member, any alternate modification or conversion made to embodiment of the present invention is all fallen within protection scope of the present invention.
The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.

Claims (5)

1. on a kind of major key body off-centre operation batch machining frock, it is characterised in that:Including clamp body, on the circumference of clamp body Several workpiece slots are interval with along the length direction of clamp body, at the two ends of clamp body location-plate is provided with, set on location-plate There is the locating slot relative with workpiece groove location, location hole is drilled with location-plate, alignment pin is loaded in location hole, on clamp body It is also equipped with the pressing plate being fixed on workpiece on clamp body.
2. on major key body according to claim 1 off-centre operation batch machining frock, it is characterised in that:The workpiece slot is 4.
3. on major key body according to claim 1 off-centre operation batch machining frock, it is characterised in that:The locating slot is 4.
4. on major key body according to claim 1 off-centre operation batch machining frock, it is characterised in that:The pressing plate is 4 It is individual, it is arranged on clamp body by bolt.
5. on major key body described in a kind of utilization claim 1 the batch machining frock of off-centre operation processing method, it is characterised in that: Comprise the following steps that:
A is cut to raw material slightly larger than given size length, and modifier treatment is carried out to raw material, then the both ends of the surface of raw material are carried out Turning, and turning is to given size length and bores two ends centre bore.
B adopts two top clampings on lathe, each cylindrical and cylindrical to the maximum and minimum cylindrical reservation of full car is carried out to workpiece and is added Spare time measures, and remaining is machined to given size;
C is fixed on workpiece on milling machine, and the flat horizontal surface at workpiece two ends is slightly washed, and retains allowance;
D on cylindrical grinder, roughly grinds clamping workpiece to maximum cylindrical and two ends minimum cylindrical on workpiece, and roughly grinds To the margin of tolerance of given size;
E roughly grinds the flat horizontal surface at two ends on surface grinding machine, it is ensured that two ends are symmetrical;
F is arranged on workpiece on major key body in the batch machining frock of off-centre operation, and step is as follows:
(1) bolt of pressing plate is unclamped, all pressing plates is rotated to the axial direction of frock, it is flat with its two ends by workpiece has been roughly ground Plane is positioned, in being put into the workpiece slot of clamp body;
(2) rotary pressure plate to workpiece vertical direction, tighten bolt, make pressing plate workpiece pressing;
(3) processing tool is arranged on lathe;
G is thick, half smart car off-centre operation, and retains off-centre operation to the allowance of workpiece center of circle distance;
H pincers worker circular arc everywhere;
I is heat-treated:Quenching HRC52-57;
J presses D, E step and grinds in each cylindrical and flat margin of tolerance to given size;
K is loaded on workpiece positioning on grinding machine, and off-centre operation is ground.
CN201611269686.XA 2016-12-30 2016-12-30 Batch machining tool for eccentric circle on main key body and machining method utilizing tool Pending CN106624900A (en)

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Application Number Priority Date Filing Date Title
CN201611269686.XA CN106624900A (en) 2016-12-30 2016-12-30 Batch machining tool for eccentric circle on main key body and machining method utilizing tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611269686.XA CN106624900A (en) 2016-12-30 2016-12-30 Batch machining tool for eccentric circle on main key body and machining method utilizing tool

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Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113732738A (en) * 2021-09-18 2021-12-03 自贡硬质合金有限责任公司 Excircle machining method and auxiliary tool

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1014410A (en) * 1964-02-04 1965-12-22 Fritz Hurth A method and means of locating parts on revolving arbors or mandrels
CN102935600A (en) * 2012-11-14 2013-02-20 费斯托气动有限公司 Multi-surface processing device
CN203459932U (en) * 2013-09-10 2014-03-05 江西铜业股份有限公司 Clamp for processing eccentric circular arc on lathe
CN203993198U (en) * 2014-07-24 2014-12-10 沃得精机(中国)有限公司 The protruding semicircle groove face of job key vehicle clamper
CN204308595U (en) * 2014-11-28 2015-05-06 上海东方泵业(集团)有限公司 A kind of frock for acorn nut processing
CN104647095A (en) * 2013-11-20 2015-05-27 江西华友机械有限公司 Machining fixture for both end faces of multiple workpieces
CN105415030A (en) * 2015-12-11 2016-03-23 昌河飞机工业(集团)有限责任公司 Quick milling positioning device
CN206484298U (en) * 2016-12-30 2017-09-12 山东金辰机械股份有限公司 The batch machining frock of off-centre operation on major key body

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1014410A (en) * 1964-02-04 1965-12-22 Fritz Hurth A method and means of locating parts on revolving arbors or mandrels
CN102935600A (en) * 2012-11-14 2013-02-20 费斯托气动有限公司 Multi-surface processing device
CN203459932U (en) * 2013-09-10 2014-03-05 江西铜业股份有限公司 Clamp for processing eccentric circular arc on lathe
CN104647095A (en) * 2013-11-20 2015-05-27 江西华友机械有限公司 Machining fixture for both end faces of multiple workpieces
CN203993198U (en) * 2014-07-24 2014-12-10 沃得精机(中国)有限公司 The protruding semicircle groove face of job key vehicle clamper
CN204308595U (en) * 2014-11-28 2015-05-06 上海东方泵业(集团)有限公司 A kind of frock for acorn nut processing
CN105415030A (en) * 2015-12-11 2016-03-23 昌河飞机工业(集团)有限责任公司 Quick milling positioning device
CN206484298U (en) * 2016-12-30 2017-09-12 山东金辰机械股份有限公司 The batch machining frock of off-centre operation on major key body

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Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113732738A (en) * 2021-09-18 2021-12-03 自贡硬质合金有限责任公司 Excircle machining method and auxiliary tool
CN113732738B (en) * 2021-09-18 2022-08-05 自贡硬质合金有限责任公司 Excircle machining method and auxiliary tool

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