CN112171511B - Eccentric modular fixture of grinding machine - Google Patents
Eccentric modular fixture of grinding machine Download PDFInfo
- Publication number
- CN112171511B CN112171511B CN202011152601.6A CN202011152601A CN112171511B CN 112171511 B CN112171511 B CN 112171511B CN 202011152601 A CN202011152601 A CN 202011152601A CN 112171511 B CN112171511 B CN 112171511B
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- eccentric
- reference hole
- distance
- outer pin
- 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.)
- Active
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 12
- 239000000758 substrate Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses an eccentric combined clamp of a grinding machine, which is applied to the eccentric arc machining of a high-hardness special-shaped workpiece, wherein a reference hole is machined in the high-hardness special-shaped workpiece, the eccentric combined clamp structurally comprises an eccentric pin shaft, the eccentric pin shaft comprises an outer pin shaft and an inner pin shaft internally tangent to the outer pin shaft, an eccentric distance is formed between the centers of the outer pin shaft and the inner pin shaft, the distance between the eccentric arc and the center of the reference hole is set as a reference eccentric distance, the length of the eccentric distance is equal to that of the reference eccentric distance, the inner pin shaft penetrates through the reference hole, the outer pin shaft and the reference hole are coaxially arranged, and the center of the eccentric arc is superposed with the center of the inner pin shaft.
Description
The technical field is as follows:
the invention relates to the technical field of processing of special-shaped parts, in particular to an eccentric combined clamp of a grinding machine.
Background art:
in the prior art, in order to meet the requirement of processing and producing the eccentric arc of the high-hardness special-shaped part, the following two modes are generally adopted: 1. according to the technical requirements of parts, purchasing a high-hardness milling cutter, and milling the arc by using the cooperation of a numerical control machining center and a tool clamp. Although the method can meet the processing requirements of different parts, the surface roughness of the processing method is difficult to meet the drawing requirements, the cutter consumption is high, and the method is far from meeting the requirements for unstable control of the profile tolerance of the parts; 2. use wire-electrode cutting processing to leave certain surplus, then artifical manual polishing again, the requirement that spare part added is guaranteed to this mode, but faces under the multiple spare part situation in batches at the enterprise, and machining efficiency is extremely low, can't satisfy enterprise production efficiency's demand far away.
The invention content is as follows:
the object of the present invention is to provide an eccentric modular fixture for grinding machines that solves one or more of the above-mentioned problems of the prior art.
In order to solve the technical problem, the invention provides an eccentric combined clamp of a grinding machine, which is applied to the eccentric arc machining of a high-hardness special-shaped workpiece, wherein a reference hole is machined in the high-hardness special-shaped workpiece, and the eccentric combined clamp is characterized in that: the structure of the eccentric pin comprises an eccentric pin shaft, wherein the eccentric pin shaft comprises an outer pin shaft and an inner pin shaft internally tangent to the inner part of the outer pin shaft, an eccentric distance is formed between the outer pin shaft and the circle center of the inner pin shaft, the distance between an eccentric arc and the circle center of a reference hole is set as a reference eccentric distance, and the length of the eccentric distance is equal to the length of the reference eccentric distance;
the inner pin shaft penetrates through the reference hole, the outer pin shaft and the reference hole are coaxially arranged, and the circle center of the eccentric arc coincides with the circle center of the inner pin shaft.
Furthermore, the structure of the invention also comprises a base plate, the circle center of the outer pin shaft is rotatably arranged on the base plate, the edge of the outer pin shaft is provided with an annular step which can clamp the reference hole, and when the inner pin shaft passes through the reference hole, the reference hole is clamped on the outer pin shaft through the annular step;
the base plate is provided with a positioning pin and a side fixing device, and the positioning pin is matched with the side fixing device to fix the high-hardness special-shaped workpiece on the base plate.
Furthermore, the side fixing device comprises a fixing block and a fastening bolt, the fixing block is fixed on the base plate, and the fastening bolt horizontally penetrates through the fixing block and extends towards the positioning pin.
The invention has the beneficial effects that: the eccentric combined clamp of the grinding machine can be used for quickly clamping and machining through the eccentric pin shaft, the whole machining process is simple and easy to operate, the machining production requirements of all sizes of parts are met, the machining cost and the debugging time are reduced, and the working efficiency of enterprises is improved.
Description of the drawings:
FIG. 1 is a plan view of an eccentric pin shaft of the present invention on a base plate.
FIG. 2 is a plan view of a high hardness profiled workpiece according to the present invention.
FIG. 3 is a structural plan view of the high-hardness special-shaped workpiece assembled on the eccentric pin shaft.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
Fig. 1 to 3 show an embodiment of the present invention, which is applied to process an eccentric arc 101 of a high-hardness special-shaped workpiece 100, wherein a reference hole 1 is processed on the high-hardness special-shaped workpiece 100, the structure of the high-hardness special-shaped workpiece includes an eccentric pin 2, the eccentric pin 2 includes an outer pin 21 and an inner pin 22 inscribed inside the outer pin 21, an eccentricity 200 is formed between the centers of circles of the outer pin 21 and the inner pin 22, the distance between the eccentric arc 101 and the center of the reference hole 1 is set as a reference eccentricity 300, and the length of the eccentricity 200 is equal to the length of the reference eccentricity 300;
the inner pin shaft 22 penetrates through the reference hole 1, the outer pin shaft 21 and the reference hole 1 are coaxially arranged, and the circle center of the eccentric arc 101 is superposed with the circle center of the inner pin shaft 22.
The structure of the invention also comprises a base plate 4, the circle center of the outer pin shaft 21 is rotatably arranged on the base plate 4, the edge of the outer pin shaft 21 is provided with an annular step 211 which can clamp the reference hole 1, and when the inner pin shaft 22 passes through the reference hole 1, the reference hole 1 is clamped on the outer pin shaft 21 through the annular step 211;
the base plate 4 is provided with a positioning pin 5 and a side fixing device 6, and the positioning pin 5 is matched with the side fixing device 6 to fix the high-hardness special-shaped workpiece 100 on the base plate 4.
In the present invention, the side fixing device 6 includes a fixing block 61 and a fastening bolt 62, the fixing block 61 is fixed on the substrate 4, and the fastening bolt 62 horizontally penetrates the fixing block 61 and extends toward the positioning pin 5.
The specific working principle of the invention for processing the high-hardness special-shaped workpiece 100 is as follows: 1. selecting a proper outer pin shaft 21 and an inner pin shaft 22 according to the distance between the center of the reference hole 1 and the center of the eccentric arc 101 on the high-hardness special-shaped workpiece 100, namely the length of the reference eccentric distance 300, wherein when the inner pin shaft 22 is internally tangent and connected inside the outer pin shaft 21, the distance of the eccentric distance 200 is consistent with the distance of the reference eccentric distance 300; 2. the method comprises the following steps that a reference hole 1 in a high-hardness special-shaped workpiece 100 penetrates through an inner pin shaft 22, the reference hole 1 is clamped on an annular step 211 of an outer pin shaft 21, the outer pin shaft 21 is rotated on a base plate 4, one side of the high-hardness special-shaped workpiece 100 is positioned and leant against a positioning pin 5, and the high-hardness special-shaped workpiece 100 is fixed through a fastening bolt 62; 3. through the traditional machining process of the cylindrical grinding machine, the thimble of the grinding machine is abutted against the inner pin shaft 22, and at the moment, the circle center of the eccentric arc 101 is superposed with the center of the thimble of the grinding machine, so that the radian precision, the roughness and the profile tolerance of the eccentric arc 101 machined on the high-hardness special-shaped workpiece 100 can be accurately controlled.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides an eccentric modular fixture of grinding machine, is applied to eccentric circular arc (101) processing of high rigidity special-shaped workpiece (100), processing has benchmark hole (1) on high rigidity special-shaped workpiece (100), its characterized in that: the structure of the eccentric pin comprises an eccentric pin shaft (2), wherein the eccentric pin shaft (2) comprises an outer pin shaft (21) and an inner pin shaft (22) internally tangent to the outer pin shaft (21), an eccentric distance (200) is formed between the centers of the outer pin shaft (21) and the inner pin shaft (22), the distance between an eccentric arc (101) and the center of a reference hole (1) is set as a reference eccentric distance (300), and the length of the eccentric distance (200) is equal to that of the reference eccentric distance (300);
the inner pin shaft (22) penetrates through the reference hole (1), the outer pin shaft (21) and the reference hole (1) are coaxially arranged, and the circle center of the eccentric arc (101) is superposed with the circle center of the inner pin shaft (22);
the structure of the device also comprises a base plate (4), the circle center of the outer pin shaft (21) is rotatably arranged on the base plate (4), an annular step (211) capable of clamping the reference hole (1) is arranged at the edge of the outer pin shaft (21), and when the inner pin shaft (22) penetrates through the reference hole (1), the reference hole (1) is clamped on the outer pin shaft (21) through the annular step (211);
the base plate (4) is provided with a positioning pin (5) and a side fixing device (6), and the positioning pin (5) is matched with the side fixing device (6) to fix the high-hardness special-shaped workpiece (100) on the base plate (4).
2. The eccentric modular fixture of a grinding machine as claimed in claim 1, wherein: the side fixing device (6) comprises a fixing block (61) and a fastening bolt (62), the fixing block (61) is fixed on the substrate (4), and the fastening bolt (62) horizontally penetrates through the fixing block (61) and extends towards the positioning pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011152601.6A CN112171511B (en) | 2020-10-26 | 2020-10-26 | Eccentric modular fixture of grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011152601.6A CN112171511B (en) | 2020-10-26 | 2020-10-26 | Eccentric modular fixture of grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112171511A CN112171511A (en) | 2021-01-05 |
| CN112171511B true CN112171511B (en) | 2022-04-05 |
Family
ID=73923504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011152601.6A Active CN112171511B (en) | 2020-10-26 | 2020-10-26 | Eccentric modular fixture of grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112171511B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118636012B (en) * | 2024-07-05 | 2025-11-25 | 中国航发动力股份有限公司 | Grinding apparatus, method and equipment for high-pressure turbine outer ring block combined grinding. |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19527507C1 (en) * | 1995-07-27 | 1996-10-31 | Johann Spreitzer | Workholding fixture for machine tool for multi surface processing |
| JP2010149239A (en) * | 2008-12-25 | 2010-07-08 | Seibu Electric & Mach Co Ltd | Eccentric hole drilling method by machine tool |
| CN102126145A (en) * | 2011-03-29 | 2011-07-20 | 无锡威孚精密机械制造有限责任公司 | Power take-off fork clamp |
| CN202607309U (en) * | 2012-06-05 | 2012-12-19 | 北京中防恒立人防设备有限公司 | Rotation arm hole turning tool |
| CN203171433U (en) * | 2013-03-21 | 2013-09-04 | 无锡市利钧轴承有限公司 | Clamp for grinding small outer circle of eccentric sleeve |
| CN105538010A (en) * | 2014-10-30 | 2016-05-04 | 陕西天财工程造价咨询有限公司 | Thin-walled shifting fork turning clamp |
| CN108705331A (en) * | 2018-07-25 | 2018-10-26 | 芜湖通力电机有限责任公司 | A kind of positioning tool and its application method for processing eccentric flange lid |
| CN209110605U (en) * | 2018-10-31 | 2019-07-16 | 重庆市核力铸造有限责任公司 | A kind of vertical vehicle eccentric fixture of cabinet |
-
2020
- 2020-10-26 CN CN202011152601.6A patent/CN112171511B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19527507C1 (en) * | 1995-07-27 | 1996-10-31 | Johann Spreitzer | Workholding fixture for machine tool for multi surface processing |
| JP2010149239A (en) * | 2008-12-25 | 2010-07-08 | Seibu Electric & Mach Co Ltd | Eccentric hole drilling method by machine tool |
| CN102126145A (en) * | 2011-03-29 | 2011-07-20 | 无锡威孚精密机械制造有限责任公司 | Power take-off fork clamp |
| CN202607309U (en) * | 2012-06-05 | 2012-12-19 | 北京中防恒立人防设备有限公司 | Rotation arm hole turning tool |
| CN203171433U (en) * | 2013-03-21 | 2013-09-04 | 无锡市利钧轴承有限公司 | Clamp for grinding small outer circle of eccentric sleeve |
| CN105538010A (en) * | 2014-10-30 | 2016-05-04 | 陕西天财工程造价咨询有限公司 | Thin-walled shifting fork turning clamp |
| CN108705331A (en) * | 2018-07-25 | 2018-10-26 | 芜湖通力电机有限责任公司 | A kind of positioning tool and its application method for processing eccentric flange lid |
| CN209110605U (en) * | 2018-10-31 | 2019-07-16 | 重庆市核力铸造有限责任公司 | A kind of vertical vehicle eccentric fixture of cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112171511A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108480923B (en) | Method for precisely machining large thin-wall revolving body part | |
| CN113414553B (en) | Machining process of main pump impeller cover of shaft seal of nuclear power station | |
| CN109048366B (en) | Set of processing equipment and processing method for crankshaft | |
| CN106541290A (en) | A kind of jig of the circumferential registration for thin-wall part processing | |
| CN103878545B (en) | A kind of multiaspect porous parts machining technique | |
| CN205630066U (en) | Press crankshaft machining complete set anchor clamps | |
| CN112171511B (en) | Eccentric modular fixture of grinding machine | |
| CN218017136U (en) | Rotary eccentric milling fixture | |
| CN202137612U (en) | Special clamp for comb dent clamping type numerical control spline shaft milling machine | |
| CN216179610U (en) | Machine tool and accurate grinding cam clamp thereof | |
| CN215281032U (en) | Adjustable positioning and stopping device for inner cavity hole machining | |
| CN214291755U (en) | A frock clamp for numerical control lathe processing step hole | |
| CN102974876B (en) | Method and used tool for machining outer surface groove of elliptic-cylindrical workpiece | |
| CN117001380A (en) | A positioning tool for disk parts and its use method | |
| CN213889075U (en) | Two-dimensional processing jig for cylindrical workpiece | |
| CN209867993U (en) | Special fixture for machining tool rest | |
| CN102513850A (en) | Special fixture for lifting lug | |
| CN207953209U (en) | A kind of bracket fixture of horizontal lathe | |
| CN201366626Y (en) | Fixture for surfacing | |
| CN215698034U (en) | Four-axis double-tip tool jig | |
| CN223947359U (en) | A fixture and cutting tool for machining the arc of a hydraulic pump support-type part. | |
| CN223098684U (en) | Self-positioning eccentric hole tool for lathe | |
| CN214815109U (en) | Drilling tool for outer peripheral plane of box | |
| CN215279949U (en) | A precision machining drive | |
| CN218080577U (en) | Same-boring die for pin holes of main shaft of water motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |