CN110666199B - Clamp system for machining high-precision eccentric shaft by numerical control lathe - Google Patents
Clamp system for machining high-precision eccentric shaft by numerical control lathe Download PDFInfo
- Publication number
- CN110666199B CN110666199B CN201911092225.3A CN201911092225A CN110666199B CN 110666199 B CN110666199 B CN 110666199B CN 201911092225 A CN201911092225 A CN 201911092225A CN 110666199 B CN110666199 B CN 110666199B
- Authority
- CN
- China
- Prior art keywords
- positioning pin
- pin hole
- deviation positioning
- holes
- hole assembly
- 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
- 238000003754 machining Methods 0.000 title claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a fixture system for machining a high-precision eccentric shaft of a numerical control lathe, which comprises an eccentric shaft, a three-jaw chuck, a base body, an adjusting body and a positioning bolt, wherein the eccentric shaft is provided with an axis A and an axis B, the base body is clamped and fixedly arranged on three jaws of the three-jaw chuck, at least three positioning holes A are formed in the base body, positioning pin holes A are symmetrically formed in the left side and the right side of the base body, and a positive deviation positioning pin hole assembly A or/and a negative deviation positioning pin hole assembly A are formed in the base body; the center of the adjusting body is provided with a shaft hole corresponding to the screw through hole, the adjusting body is provided with at least three positioning holes B, the left side and the right side of the adjusting body are symmetrically provided with positioning pin holes B, the adjusting body is provided with a positive deviation positioning pin hole assembly B or/and a negative deviation positioning pin hole assembly B, the adjusting body is fixedly connected with the base body through a fastening screw, and the shaft A of the eccentric shaft is matched and assembled in the shaft hole of the adjusting body. The fixture system of the invention has high precision of processing the eccentric shaft, the precision can reach 0.01mm, and the size is stable and easy to adjust.
Description
The invention relates to the technical field of precision machining of eccentric shaft parts, in particular to a clamp system for machining a high-precision eccentric shaft by a numerical control lathe.
Background
The eccentric shaft parts are widely applied in the field of automobiles, the eccentric shaft parts are processed in batches by professional equipment, the equipment investment is large, the processed precision is not high, and the existing eccentric shaft parts with high requirements on aviation, aerospace and the like cannot be processed. Eccentric shaft machining always puzzles the field of mechanical machining, and the traditional machining method is to manually eccentric by using four-jaw clamping parts on a lathe or a numerical control lathe or eccentric by using an eccentric tool.
Defects of eccentric shafts machined by a traditional lathe are that: the clamping jaw cannot be stably positioned, and positioning is inaccurate when clamping is repeated, so that machining precision is low, efficiency is low, and size is unstable; and when the size is not good, fine adjustment of the accurate size cannot be performed. Defects of the traditional eccentric tooling: preliminary positioning (positioning accuracy of about 0.1 mm) can be performed, and fine adjustment of the size cannot be performed when the size is not good.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a clamp system for processing a high-precision eccentric shaft of a numerical control lathe, wherein the clamp system is high in precision of processing the eccentric shaft, can reach 0.01mm in precision, is stable in size and is easy to adjust; the fine tuning amplitude can be increased and reduced according to the requirements, the clamp is easy to do, the cost is low, and any machining mode which cannot adjust the eccentric size can be replaced.
The aim of the invention is achieved by the following technical scheme:
the fixture system for machining the high-precision eccentric shaft of the numerical control lathe comprises an eccentric shaft, a three-jaw chuck, a base body, an adjusting body and a positioning bolt, wherein the eccentric shaft is provided with a shaft A and a shaft B, the central axis of the shaft A is parallel to the central axis of the shaft B, the three-jaw chuck is provided with three jaws, the base body is fixedly clamped on the three jaws of the three-jaw chuck, a screw through hole penetrates through the center position of the base body, at least three positioning holes A are formed in the base body, positioning pin holes A matched with the positioning bolt are symmetrically formed in the left side and the right side of the base body respectively, and a positive deviation positioning pin hole assembly A or/and a negative deviation positioning pin hole assembly A are formed in the base body; the center of the adjusting body is provided with a shaft hole corresponding to the screw through hole, the adjusting body is provided with at least three positioning holes B, the left side and the right side of the adjusting body are respectively symmetrically provided with a positioning pin hole B matched with the positioning bolt, the adjusting body is provided with a positive deviation positioning pin hole assembly B or/and a negative deviation positioning pin hole assembly B, the adjusting body and the base body are connected and fixed through a fastening screw, and the fastening screw sequentially passes through the positioning holes B and the positioning holes A in a threaded manner; the shaft A of the eccentric shaft is matched and assembled in the shaft hole of the adjusting body.
In order to better realize the invention, the invention also comprises a tensioning screw which passes through the screw through hole of the base body and is in threaded tensioning connection with the shaft A of the eccentric shaft.
The further technical scheme is as follows: the base body is provided with a positive deviation positioning pin hole assembly A and a negative deviation positioning pin hole assembly A, and the adjusting body is provided with a positive deviation positioning pin hole assembly B and a negative deviation positioning pin hole assembly B; the positive deviation positioning pin hole assembly A comprises a first positive deviation positioning pin hole assembly A and a second positive deviation positioning pin hole assembly A, the first positive deviation positioning pin hole assembly A comprises two first positive deviation positioning pin holes A, the two first positive deviation positioning pin holes A are symmetrically arranged on the base body, the second positive deviation positioning pin hole assembly A comprises two second positive deviation positioning pin holes A, and the two second positive deviation positioning pin holes A are symmetrically arranged on the base body; the negative deviation positioning pin hole assembly A comprises a first negative deviation positioning pin hole assembly A and a second negative deviation positioning pin hole assembly A, the first negative deviation positioning pin hole assembly A comprises two first negative deviation positioning pin holes A, the two first negative deviation positioning pin holes A are symmetrically arranged on the base body, the second negative deviation positioning pin hole assembly A comprises two second negative deviation positioning pin holes A, and the two second negative deviation positioning pin holes A are symmetrically arranged on the base body; the positive deviation positioning pin hole assembly B comprises a first positive deviation positioning pin hole assembly B and a second positive deviation positioning pin hole assembly B, the first positive deviation positioning pin hole assembly B comprises two first positive deviation positioning pin holes B, the two first positive deviation positioning pin holes B are symmetrically arranged on the adjusting body, the second positive deviation positioning pin hole assembly B comprises two second positive deviation positioning pin holes B, and the two second positive deviation positioning pin holes B are symmetrically arranged on the adjusting body; the negative deviation positioning pin hole assembly B comprises a first negative deviation positioning pin hole assembly B and a second negative deviation positioning pin hole assembly B, the first negative deviation positioning pin hole assembly B comprises two first negative deviation positioning pin holes B, the two first negative deviation positioning pin holes B are symmetrically arranged on the adjusting body, the second negative deviation positioning pin hole assembly B comprises two second negative deviation positioning pin holes B, and the two second negative deviation positioning pin holes B are symmetrically arranged on the adjusting body; the two first positive deviation locating pin holes A and the two first positive deviation locating pin holes B are arranged in one-to-one correspondence, the two second positive deviation locating pin holes A and the two second positive deviation locating pin holes B are arranged in one-to-one correspondence, the two first negative deviation locating pin holes A and the two first negative deviation locating pin holes B are arranged in one-to-one correspondence, and the two second negative deviation locating pin holes A and the two second negative deviation locating pin holes B are arranged in one-to-one correspondence.
The further technical scheme is as follows: the two first positive deviation locating pin holes A are arranged symmetrically up and down on the base body, the two second positive deviation locating pin holes A are arranged symmetrically up and down on the base body, the two first negative deviation locating pin holes A are arranged symmetrically left and right on the base body, and the two second negative deviation locating pin holes A are arranged symmetrically left and right on the base body.
Still further technical scheme is: the first positive deviation positioning pin hole B on the adjusting body is a +0.01 deviation adjusting hole, the second positive deviation positioning pin hole B on the adjusting body is a +0.02 deviation adjusting hole, the first negative deviation positioning pin hole B on the adjusting body is a-0.01 deviation adjusting hole, and the second negative deviation positioning pin hole B on the adjusting body is a-0.02 deviation adjusting hole.
Preferably, the base body is provided with four positioning holes A which are arranged in a square shape, the adjusting body is provided with four positioning holes B which are arranged in a square shape, the number of the fastening screws is four, and the four fastening screws, the four positioning holes B and the four positioning holes A are arranged in a one-to-one correspondence.
Preferably, the number of the positioning bolts is two.
Compared with the prior art, the invention has the following advantages:
(1) The eccentric shaft part mounting hole has high precision, can accurately position the eccentric shaft part, and meanwhile, the base body and each group of positioning pin holes on the adjusting body have micro-difference, and the size of the micro-difference determines the size of the micro-adjustment dimension, so that the micro-adjustment function is realized, and the micro-adjustment device has obvious technical breakthrough compared with the traditional eccentric shaft turning mode.
(2) The fixture system of the invention has high precision of processing the eccentric shaft, the precision can reach 0.01mm, and the size is stable and easy to adjust; the fine tuning amplitude can be increased and reduced according to the requirements, the clamp is easy to do, the cost is low, and any machining mode which cannot adjust the eccentric size can be replaced.
Drawings
FIG. 1 is a schematic view of the structure of an eccentric shaft of the present invention;
FIG. 2 is a schematic view of the structure of the fixture system of the present invention with an eccentric shaft installed;
FIG. 3 is a side view in cross section of FIG. 2;
FIG. 4 is a schematic structural view of a substrate in an embodiment;
FIG. 5 is a schematic view of the structure of the regulator in the embodiment;
Fig. 6 is an enlarged partial schematic view of fig. 3.
Wherein, the names corresponding to the reference numerals in the drawings are:
10-eccentric shaft, 101-shaft A, 102-shaft B, 1-three-jaw chuck, 2-jaw, 3-base, 31-pilot hole A, 32-pilot pin hole A, 33-first positive-bias pilot pin hole A, 34-second positive-bias pilot pin hole A, 35-first negative-bias pilot pin hole A, 36-second negative-bias pilot pin hole A, 37-screw through hole, 4-adjustment body, 41-pilot hole B, 42-pilot pin hole B, 43-first positive-bias pilot pin hole B, 44-second positive-bias pilot pin hole B, 45-first negative-bias pilot pin hole B, 46-second negative-bias pilot pin hole B, 47-shaft hole, 5-tension screw, 6-pilot pin, 7-fastening screw.
Detailed Description
The invention is further illustrated by the following examples:
Examples
As shown in fig. 1 to 6, a fixture system for machining a high-precision eccentric shaft by a numerically controlled lathe comprises an eccentric shaft 10, a three-jaw chuck 1, a tensioning screw 5, a base body 3, an adjusting body 4 and a positioning bolt 6, wherein the eccentric shaft 10 is provided with a shaft A101 and a shaft B102, the central axis of the shaft A101 is parallel to the central axis of the shaft B102 (as shown in fig. 1, the eccentric distance between the shaft A101 and the shaft B102 is A), the three-jaw chuck 1 is provided with three jaws 2, the base body 3 is fixedly clamped on the three jaws 2 of the three-jaw chuck 1, the center position of the base body 3 is penetrated with a screw through hole 37, the base body 3 is provided with at least three positioning holes A31, the left side and the right side of the base body 3 are symmetrically provided with positioning pin holes A32 matched with the positioning bolt 6, and the base body 3 is provided with a positive deviation positioning pin hole assembly A or/and a negative deviation positioning pin hole assembly A. The center of the adjusting body 4 is provided with a shaft hole 47 corresponding to the screw through hole 37, the adjusting body 4 is provided with at least three positioning holes B41, the left side and the right side of the adjusting body 4 are respectively symmetrically provided with a positioning pin hole B42 matched with the positioning bolt 6, and the adjusting body 4 is provided with a positive deviation positioning pin hole assembly B or/and a negative deviation positioning pin hole assembly B.
A positive deviation locating pin hole assembly A and a negative deviation locating pin hole assembly A are formed on a base body 3, and a positive deviation locating pin hole assembly B and a negative deviation locating pin hole assembly B are formed on an adjusting body 4. As shown in fig. 4, the positive offset dowel pin hole assembly a includes a first positive offset dowel pin hole assembly a including two first positive offset dowel pin holes a33, the two first positive offset dowel pin holes a33 being symmetrically disposed on the base 3, and a second positive offset dowel pin hole assembly a including two second positive offset dowel pin holes a34, the two second positive offset dowel pin holes a34 being symmetrically disposed on the base 3. The negative deviation locating pin hole assembly A comprises a first negative deviation locating pin hole assembly A and a second negative deviation locating pin hole assembly A, the first negative deviation locating pin hole assembly A comprises two first negative deviation locating pin holes A35, the two first negative deviation locating pin holes A35 are symmetrically arranged on the base body 3, the second negative deviation locating pin hole assembly A comprises two second negative deviation locating pin holes A36, and the two second negative deviation locating pin holes A36 are symmetrically arranged on the base body 3.
As shown in fig. 5, the positive offset dowel pin hole assembly B includes a first positive offset dowel pin hole assembly B including two first positive offset dowel pin holes B43, the two first positive offset dowel pin holes B43 being symmetrically disposed on the adjustment body 4, and a second positive offset dowel pin hole assembly B including two second positive offset dowel pin holes B44, the two second positive offset dowel pin holes B44 being symmetrically disposed on the adjustment body 4. The negative deviation locating pin hole assembly B comprises a first negative deviation locating pin hole assembly B and a second negative deviation locating pin hole assembly B, the first negative deviation locating pin hole assembly B comprises two first negative deviation locating pin holes B45, the two first negative deviation locating pin holes B45 are symmetrically arranged on the adjusting body 4, the second negative deviation locating pin hole assembly B comprises two second negative deviation locating pin holes B46, and the two second negative deviation locating pin holes B46 are symmetrically arranged on the adjusting body 4.
As shown in fig. 4, two first positive deviation dowel holes a33 are provided on the base 3 in a vertically symmetrical manner, two second positive deviation dowel holes a34 are provided on the base 3 in a vertically symmetrical manner, two first negative deviation dowel holes a35 are provided on the base 3 in a laterally symmetrical manner, and two second negative deviation dowel holes a36 are provided on the base 3 in a laterally symmetrical manner. The two first positive deviation positioning pin holes A33 and the two first positive deviation positioning pin holes B43 are arranged in a one-to-one correspondence manner, the two second positive deviation positioning pin holes A34 and the two second positive deviation positioning pin holes B44 are arranged in a one-to-one correspondence manner, the two first negative deviation positioning pin holes A35 and the two first negative deviation positioning pin holes B45 are arranged in a one-to-one correspondence manner, and the two second negative deviation positioning pin holes A36 and the two second negative deviation positioning pin holes B46 are arranged in a one-to-one correspondence manner.
In this embodiment, the first positive deviation positioning pin hole B43 on the adjusting body 4 is preferably a +0.01 deviation adjusting hole, the second positive deviation positioning pin hole B44 on the adjusting body 4 is preferably a +0.02 deviation adjusting hole, the first negative deviation positioning pin hole B45 on the adjusting body 4 is preferably a-0.01 deviation adjusting hole, and the second negative deviation positioning pin hole B46 on the adjusting body 4 is preferably a-0.02 deviation adjusting hole. In use, the number of the positioning bolts 6 is two.
The adjusting body 4 is fixedly connected with the base body 3 through the fastening screw 7, and the fastening screw 7 sequentially passes through the positioning hole B41 and the positioning hole A31 in a threaded manner. The shaft a101 of the eccentric shaft 10 is fitted in the shaft hole 47 of the adjustment body 4. As shown in fig. 2, the base 3 is provided with four positioning holes a31, the four positioning holes a31 are arranged in a square shape on the base 3, the adjusting body 4 is provided with four positioning holes B41, the four positioning holes B41 are arranged in a square shape on the adjusting body 4, the number of the fastening screws 7 is four, and the four fastening screws 7, the four positioning holes B41 and the four positioning holes a31 are arranged in a one-to-one correspondence.
As shown in fig. 3, the tightening screw 5 is screwed into the shaft a101 of the eccentric shaft 10 through the screw through-hole 37 of the base body 3.
When the three-jaw chuck 1 of the lathe is used for clamping the base body 3 (after the base body 3 is clamped, the base body is always fixed during subsequent size adjustment), the adjusting body 4 is inserted into any one group of positive deviation positioning pin hole assemblies B or negative deviation positioning pin hole assemblies B on the adjusting body 4 through two positioning pins 6, meanwhile, the two positioning pins 6 correspondingly penetrate through one group of positive deviation positioning pin hole assemblies A or negative deviation positioning pin hole assemblies A, the base body 3 and the adjusting body 4 are fixed in position, and the base body is fastened through four fastening screws 7. The shaft A101 of the eccentric shaft part is placed in the shaft hole 47 (i.e. the mounting hole) of the adjusting body 4, and is fastened and fixed by the fastening screw 5 from the back through the screw through hole 37 on the base body 3 and the shaft A101 of the eccentric shaft part. Because the eccentric shaft 10 needs to be matched with other components, after the other components are assembled, a certain tolerance exists in the eccentric shaft 10, and the eccentric shaft 10 is required to have an eccentric distance tolerance of 0.01mm when the eccentric shaft 10 is applied to the high-precision aviation and aerospace fields, for example, the eccentric distance of the eccentric shaft 10 is +0.01mm, -0.01mm, +0.02mm, -0.02mm or multiples thereof, the precision of the eccentric shaft 10 can be required to be processed to be 0.01mm, the eccentric shaft 10 needs to be measured once before the processing is completed, and then the fixture system is selected to be matched with a numerical control lathe to be processed according with the precision requirement. If the measured size of the eccentric distance A of the eccentric shaft part processed by the high-precision numerically controlled lathe (at the moment, a clamping system is not added) is smaller than the theoretical design size by 0.01mm, then the clamping system is selected to conduct the eccentric distance fine adjustment processing, two positioning bolts 6 are selected to be inserted into the first positive deviation positioning pin hole A33 and the first positive deviation positioning pin hole B43 (at the moment, the eccentric shaft part can be increased by 0.01mm after the clamping system is added), so that the processing of the high-precision numerically controlled lathe is finely adjusted, and the eccentric shaft part meeting the precision requirement can be processed.
When the eccentric size needs to be adjusted, the four fastening screws 7 are taken down, the two positioning bolts 6 are taken out and inserted into holes of positive deviation positioning pin hole assemblies B or negative deviation positioning pin hole assemblies B with different sizes carved on the adjusting body 4, the mounting holes of the eccentric shaft parts correspondingly displace, and then the adjusting body 4 and the base body 3 are fastened by the four fastening screws 7, so that the fine adjustment of the size of the eccentric distance is completed.
The positive deviation locating pin hole assembly B or the negative deviation locating pin hole assembly B on the adjusting body 4 is different from the positive deviation locating pin hole assembly A or the negative deviation locating pin hole assembly A on the base body 3 in carved size, the locating bolt 6 is inserted into different locating pin holes, meanwhile, the mounting hole of the eccentric shaft part is displaced, fine adjustment of the eccentric size can be completed, and fine adjustment precision can reach 0.01mm.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (4)
1. The fixture system for machining the high-precision eccentric shaft by using the numerical control lathe comprises an eccentric shaft (10), a three-jaw chuck (1) and a tensioning screw (5), wherein the eccentric shaft (10) is provided with a shaft A (101) and a shaft B (102), the central axis of the shaft A (101) is parallel to the central axis of the shaft B (102), and the three-jaw chuck (1) is provided with three jaws (2), and is characterized in that: the three-jaw chuck is characterized by further comprising a base body (3), an adjusting body (4) and a positioning bolt (6), wherein the base body (3) is clamped and fixedly installed on three jaws (2) of the three-jaw chuck (1), a screw through hole (37) is formed in the center of the base body (3) in a penetrating mode, at least three positioning holes A (31) are formed in the base body (3), positioning pin holes A (32) matched with the positioning bolt (6) are symmetrically formed in the left side and the right side of the base body (3) respectively, and a positive deviation positioning pin hole assembly A or/and a negative deviation positioning pin hole assembly A are formed in the base body (3); the center of the adjusting body (4) is provided with a shaft hole (47) corresponding to the screw through hole (37), the adjusting body (4) is provided with at least three positioning holes B (41), the left side and the right side of the adjusting body (4) are respectively symmetrically provided with a positioning pin hole B (42) matched with the positioning bolt (6), the adjusting body (4) is provided with a positive deviation positioning pin hole assembly B or/and a negative deviation positioning pin hole assembly B, the adjusting body (4) is fixedly connected with the base body (3) through a fastening screw (7), and the fastening screw (7) sequentially passes through the positioning holes B (41) and the positioning holes A (31) in a threaded manner; the shaft A (101) of the eccentric shaft (10) is matched and assembled in the shaft hole (47) of the adjusting body (4); the tensioning screw (5) passes through a screw through hole (37) of the base body (3) and is in threaded tensioning connection with the shaft A (101) of the eccentric shaft (10); the base body (3) is provided with a positive deviation positioning pin hole assembly A and a negative deviation positioning pin hole assembly A, and the adjusting body (4) is provided with a positive deviation positioning pin hole assembly B and a negative deviation positioning pin hole assembly B; the positive deviation positioning pin hole assembly A comprises a first positive deviation positioning pin hole assembly A and a second positive deviation positioning pin hole assembly A, the first positive deviation positioning pin hole assembly A comprises two first positive deviation positioning pin holes A (33), the two first positive deviation positioning pin holes A (33) are symmetrically arranged on the base body (3), the second positive deviation positioning pin hole assembly A comprises two second positive deviation positioning pin holes A (34), and the two second positive deviation positioning pin holes A (34) are symmetrically arranged on the base body (3); the negative deviation positioning pin hole assembly A comprises a first negative deviation positioning pin hole assembly A and a second negative deviation positioning pin hole assembly A, the first negative deviation positioning pin hole assembly A comprises two first negative deviation positioning pin holes A (35), the two first negative deviation positioning pin holes A (35) are symmetrically arranged on the base body (3), the second negative deviation positioning pin hole assembly A comprises two second negative deviation positioning pin holes A (36), and the two second negative deviation positioning pin holes A (36) are symmetrically arranged on the base body (3); the positive deviation positioning pin hole assembly B comprises a first positive deviation positioning pin hole assembly B and a second positive deviation positioning pin hole assembly B, the first positive deviation positioning pin hole assembly B comprises two first positive deviation positioning pin holes B (43), the two first positive deviation positioning pin holes B (43) are symmetrically arranged on the adjusting body (4), the second positive deviation positioning pin hole assembly B comprises two second positive deviation positioning pin holes B (44), and the two second positive deviation positioning pin holes B (44) are symmetrically arranged on the adjusting body (4); the negative deviation positioning pin hole assembly B comprises a first negative deviation positioning pin hole assembly B and a second negative deviation positioning pin hole assembly B, the first negative deviation positioning pin hole assembly B comprises two first negative deviation positioning pin holes B (45), the two first negative deviation positioning pin holes B (45) are symmetrically arranged on the adjusting body (4), the second negative deviation positioning pin hole assembly B comprises two second negative deviation positioning pin holes B (46), and the two second negative deviation positioning pin holes B (46) are symmetrically arranged on the adjusting body (4); the two first positive deviation positioning pin holes A (33) are arranged in one-to-one correspondence with the two first positive deviation positioning pin holes B (43), the two second positive deviation positioning pin holes A (34) are arranged in one-to-one correspondence with the two second positive deviation positioning pin holes B (44), the two first negative deviation positioning pin holes A (35) are arranged in one-to-one correspondence with the two first negative deviation positioning pin holes B (45), and the two second negative deviation positioning pin holes A (36) are arranged in one-to-one correspondence with the two second negative deviation positioning pin holes B (46); four locating holes A (31) are formed in the base body (3), the four locating holes A (31) are arranged in a square mode on the base body (3), four locating holes B (41) are formed in the adjusting body (4), the four locating holes B (41) are arranged in a square mode on the adjusting body (4), the number of the fastening screws (7) is four, and the four fastening screws (7), the four locating holes B (41) and the four locating holes A (31) are arranged in a one-to-one correspondence mode.
2. A fixture system for numerically controlled lathes for machining high precision eccentric shafts as recited in claim 1, wherein: the two first positive deviation positioning pin holes A (33) are symmetrically arranged up and down on the base body (3), the two second positive deviation positioning pin holes A (34) are symmetrically arranged up and down on the base body (3), the two first negative deviation positioning pin holes A (35) are symmetrically arranged left and right on the base body (3), and the two second negative deviation positioning pin holes A (36) are symmetrically arranged left and right on the base body (3).
3. A fixture system for numerically controlled lathes for machining high precision eccentric shafts as recited in claim 2, wherein: the first positive deviation positioning pin hole B (43) on the adjusting body (4) is a +0.01 deviation adjusting hole, the second positive deviation positioning pin hole B (44) on the adjusting body (4) is a +0.02 deviation adjusting hole, the first negative deviation positioning pin hole B (45) on the adjusting body (4) is a-0.01 deviation adjusting hole, and the second negative deviation positioning pin hole B (46) on the adjusting body (4) is a-0.02 deviation adjusting hole.
4. A fixture system for numerically controlled lathes for machining high precision eccentric shafts as recited in claim 1, wherein: the number of the positioning bolts (6) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092225.3A CN110666199B (en) | 2019-11-11 | 2019-11-11 | Clamp system for machining high-precision eccentric shaft by numerical control lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092225.3A CN110666199B (en) | 2019-11-11 | 2019-11-11 | Clamp system for machining high-precision eccentric shaft by numerical control lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110666199A CN110666199A (en) | 2020-01-10 |
| CN110666199B true CN110666199B (en) | 2024-05-03 |
Family
ID=69086912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911092225.3A Active CN110666199B (en) | 2019-11-11 | 2019-11-11 | Clamp system for machining high-precision eccentric shaft by numerical control lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110666199B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247624A (en) * | 2020-10-19 | 2021-01-22 | 抚州申铃汽车配件有限责任公司 | Machining process and clamp for eccentric shaft head assembly of automobile rear axle housing assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005014167A (en) * | 2003-06-27 | 2005-01-20 | Hitachi Ltd | Machining method of shaft having a plurality of eccentric parts |
| JP2010228015A (en) * | 2009-03-26 | 2010-10-14 | Aichi Steel Works Ltd | Lathe |
| CN201702403U (en) * | 2010-04-28 | 2011-01-12 | 南车戚墅堰机车有限公司 | Vehicle eccentric hole fixture |
| CN203030948U (en) * | 2012-12-11 | 2013-07-03 | 呼和浩特众环(集团)有限责任公司 | Two-claw eccentric floating clamp for machining automobile engine piston eccentric combustion chamber |
| CN105880656A (en) * | 2015-01-06 | 2016-08-24 | 江燕 | Adjustable eccentric chuck |
| CN207723512U (en) * | 2018-01-19 | 2018-08-14 | 河北众新科技有限公司 | Eccentric shaft turning is with can reset eccentric fixture |
| CN108687556A (en) * | 2018-05-30 | 2018-10-23 | 中国航发动力股份有限公司 | A car eccentric fixture and method using angular deflection to fix eccentricity |
| CN210937204U (en) * | 2019-11-11 | 2020-07-07 | 成都威诺精密机械有限公司 | Clamp system for machining high-precision eccentric shaft by using numerical control lathe |
-
2019
- 2019-11-11 CN CN201911092225.3A patent/CN110666199B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005014167A (en) * | 2003-06-27 | 2005-01-20 | Hitachi Ltd | Machining method of shaft having a plurality of eccentric parts |
| JP2010228015A (en) * | 2009-03-26 | 2010-10-14 | Aichi Steel Works Ltd | Lathe |
| CN201702403U (en) * | 2010-04-28 | 2011-01-12 | 南车戚墅堰机车有限公司 | Vehicle eccentric hole fixture |
| CN203030948U (en) * | 2012-12-11 | 2013-07-03 | 呼和浩特众环(集团)有限责任公司 | Two-claw eccentric floating clamp for machining automobile engine piston eccentric combustion chamber |
| CN105880656A (en) * | 2015-01-06 | 2016-08-24 | 江燕 | Adjustable eccentric chuck |
| CN207723512U (en) * | 2018-01-19 | 2018-08-14 | 河北众新科技有限公司 | Eccentric shaft turning is with can reset eccentric fixture |
| CN108687556A (en) * | 2018-05-30 | 2018-10-23 | 中国航发动力股份有限公司 | A car eccentric fixture and method using angular deflection to fix eccentricity |
| CN210937204U (en) * | 2019-11-11 | 2020-07-07 | 成都威诺精密机械有限公司 | Clamp system for machining high-precision eccentric shaft by using numerical control lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110666199A (en) | 2020-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106541290A (en) | A kind of jig of the circumferential registration for thin-wall part processing | |
| CN105014107A (en) | Regulable eccentric chuck | |
| CN110666199B (en) | Clamp system for machining high-precision eccentric shaft by numerical control lathe | |
| CN203317061U (en) | Work fixture for machining profiled piston rod on numerical control machine work | |
| CN210937204U (en) | Clamp system for machining high-precision eccentric shaft by using numerical control lathe | |
| CN110000579B (en) | Special clamp for batch numerical control machining of centrifugal impellers with non-through holes in centers and mounting method | |
| US3941364A (en) | Adjustable shaft rest assembly | |
| CN213645980U (en) | Double-flange workpiece drilling tool | |
| CN219853216U (en) | Thin gasket batch forming clamp | |
| CN210790118U (en) | Tool system for machining aviation part with composite angle inclined hole | |
| CN107138754B (en) | Adjustable positioning tool for machine tool chuck and using method thereof | |
| CN109968055A (en) | Multi-functional clamping tooling | |
| CN219151599U (en) | Multi-station adjustable end face arc turning positioning device | |
| CN209754590U (en) | multi-process composite milling clamp for bearing seat part | |
| CN216421513U (en) | Adjustable tooling clamp | |
| CN211966754U (en) | Precise hole distance machining clamp for two taper holes of numerically controlled lathe | |
| CN211708198U (en) | Self-centering numerical milling fixture for aviation fairing parts | |
| US3057237A (en) | Adjustable center for chuck | |
| CN212020097U (en) | Lathe clamping device | |
| CN222449313U (en) | Frock clamp is used in metal number accuse processing | |
| CN201702588U (en) | Space truss ball joint machining fixture | |
| CN221818025U (en) | Waterproof lock nut multistation positioning fixture | |
| CN219881858U (en) | Universal clamping fixture for machining shaft workpiece | |
| CN219094332U (en) | Off-axis clamp for lathe machining | |
| CN218015827U (en) | Quick roof-measuring correction jig |
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 |