CN113953608B - Special fixture for V-shaped groove of lock handle for electrosparking - Google Patents

Special fixture for V-shaped groove of lock handle for electrosparking Download PDF

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Publication number
CN113953608B
CN113953608B CN202111250040.8A CN202111250040A CN113953608B CN 113953608 B CN113953608 B CN 113953608B CN 202111250040 A CN202111250040 A CN 202111250040A CN 113953608 B CN113953608 B CN 113953608B
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lock handle
shaped groove
shaped
positioning shaft
clamping seat
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CN113953608A (en
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赵文利
赵雄
刘铭元
王后
李曙光
李德成
王佐友
马帅
赵伯洋
侯明
赵建新
刘兴婷
张大勇
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Capital Aerospace Machinery Co Ltd
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Capital Aerospace Machinery Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H11/00—Auxiliary apparatus or details, not otherwise provided for
    • B23H11/003—Mounting of workpieces, e.g. working-tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The invention relates to a special clamp for V-shaped grooves of an electric spark machining lock handle, belonging to the field of special clamp design; the clamping device comprises a clamping seat, a compression screw, a pressing block, a compression screw, a positioning shaft, an eccentric wheel, a working electrode, a clamping screw, 2 confining pin shafts and a locking handle; the lock handle is placed at the corner of the upper surface of the L-shaped clamping seat; the lock handle is horizontally pressed by the pressing block from the outer side; the compression screw rod extends into the pressing block; 2 the fastening pin shafts are symmetrical to clamp two sides of the compression screw; the positioning shaft is arranged on the side wall of the top of the clamping seat; the compression screw vertically extends into the clamping seat from the top of the clamping seat, so that the circumferential rotation of the positioning shaft is limited; a gap is reserved between the eccentric wheel and the positioning shaft and used for clamping the lock handle; the working electrode is vertically arranged above the lock handle; the clamping screw rod drives the working electrode to vertically move downwards, so that the working electrode can perform discharge electrolytic machining on the lock handle; the invention realizes the clamping and positioning of the lock handle and ensures the size and form and position tolerance of the V-shaped groove of the lock handle processed by electric spark.

Description

Special fixture for V-shaped groove of lock handle for electrosparking
Technical Field
The invention belongs to the field of special fixture design, and relates to a special fixture for a V-shaped groove of an electric spark machining lock handle.
Background
The lock handle is a key part with high strength and a complex structure, and the strict requirements on the size and the form and position tolerance of the V-shaped groove on the cylindrical surface of the lock handle bring difficulties to processing. In order to process the V-shaped groove of the lock handle meeting the precision requirement, at present, electric spark machining is mainly adopted, electric spark is taken as an important special machining technology and is widely applied to the fields of difficult-to-cut conductive materials, precision part manufacturing and the like, due to the irregular appearance structure of the lock handle and the limitation of the electric spark machining, the V-shaped groove on the cylindrical surface cannot be accurately machined under the normal condition, and the design of a special clamp for realizing the clamping and positioning of the lock handle becomes the key for solving the problem.
At present, no proper electric spark clamp is provided for ensuring the size and form and position tolerance of the V-shaped groove of the lock handle in electric spark machining.
Disclosure of Invention
The technical problem solved by the invention is as follows: the special fixture for the V-shaped groove of the lock handle for the electric spark machining is provided, so that the lock handle is clamped and positioned, and the size and form and position tolerance of the V-shaped groove of the lock handle for the electric spark machining are guaranteed.
The technical scheme of the invention is as follows:
a special clamp for processing a V-shaped groove of a lock handle by electric spark comprises a clamping seat, a compression screw, a pressing block, a compression screw, a positioning shaft, an eccentric wheel, a working electrode, a clamping screw, 2 confining pin shafts and a lock handle; wherein, the card seat is horizontally arranged in an L-shaped structure; the lock handle is placed at the corner of the upper surface of the L-shaped clamping seat; the pressing block horizontally props against the lock handle from the outer side, so that the lock handle is tightly pressed at the corner of the L-shaped clamping seat; the compression screw horizontally penetrates through the bulge at the front end of the clamping seat and extends into the pressing block; 2 fastening pin shafts symmetrically and vertically extend into the pressing block to clamp two sides of the pressing screw; the positioning shaft is arranged on the side wall of the top of the clamping seat; the compression screw vertically extends into the clamping seat from the top of the clamping seat, so that the circumferential rotation of the positioning shaft is limited; the eccentric wheel is arranged below the positioning shaft; a gap is reserved between the eccentric wheel and the positioning shaft and used for clamping the lock handle; the working electrode is vertically arranged above the lock handle; the clamping screw rod is vertically installed at the top of the working electrode, and the working electrode is driven to vertically move downwards through the clamping screw rod, so that the discharge electrolytic machining of the working electrode on the lock handle is realized.
In the above special fixture for the electric spark machining lock handle V-shaped groove, the lock handle comprises an ear-shaped boss and a lock handle column; wherein, the lug boss is of a plate-shaped structure; the lock handle column is axially and horizontally arranged, and the lug boss is arranged at the axial end face of the lock handle column, so that the lock handle column is perpendicular to the lug boss; when the lock is installed, the lock handle column is axially and horizontally placed at the corner of the clamping seat; the pressing block horizontally presses the outer side wall of the lock handle column from the side surface; the ear-shaped boss is attached to the side wall of the clamping seat and clamped in a gap between the eccentric wheel and the positioning shaft to realize limiting.
In the special fixture for processing the V-shaped groove of the lock handle by using the electric spark, the butt joint surface of the pressing block and the lock handle column is an arc-shaped surface, and the shape of the arc-shaped surface corresponds to the outer side wall of the lock handle column.
In foretell special fixture of spark-erosion machining lock handle V type groove, the top corner of ear boss is provided with the arcuation recess, and the arcuation recess is unanimous with the lateral wall radian of location axle, realizes the spacing of a apex angle of location axle to ear form boss.
In the special clamp for the electric spark machining lock handle V-shaped groove, the gap between the positioning shaft and the eccentric wheel is adjusted by rotating the eccentric wheel, so that the clamping of the lug boss is realized.
In the special clamp for the electric spark machining lock handle V-shaped groove, arc-shaped grooves are symmetrically formed in two sides of the shaft end of the compression screw; after the 2 fastening pin shafts extend from the top of the pressing block, the fastening pin shafts are embedded into the 2 arc-shaped grooves of the pressing screw rod, so that the pressing block is connected with the pressing screw rod.
In the special fixture for the electric spark machining lock handle V-shaped groove, the positioning shaft axially extends into the clamping seat in a direction perpendicular to the side wall of the clamping seat; the shaft section of the positioning shaft is of a semicircular structure; when the compression screw extends into the top of the clamping seat from top to bottom, the compression screw is limited on the plane of the semicircular positioning shaft, and the circumferential rotation of the positioning shaft is limited.
In the special fixture for processing the V-shaped groove of the lock handle by the electric spark, the working electrode vertically moves downwards to process the V-shaped groove at the top of the lock handle column; the shape of the V-shaped groove corresponds to the head end of the bottom of the working electrode.
In the special clamp for the electric spark machining lock handle V-shaped groove, the diameter of the lock handle column is 36 mm; after the processing is finished, the included angle between the first edge and the second edge of the V-shaped groove is 120 degrees; and the error range of the included angle between the first edge or the second edge and the vertical line is 60 +/-10'; the parallelism between the straight line of the bottom of the V-shaped groove and the axis of the lock handle column is not more than 0.05 mm; finding a tangent parallel to the first edge at the outer side wall of the lock handle column, wherein the error range of the distance between the first edge and the tangent is
Figure BDA0003322317190000031
Finding a tangent parallel to the second edge on the outer side wall of the lock handle column, wherein the distance error range between the second edge and the tangent is 19 mm; the top of the first edge is provided with a horizontal line, and the distance between the horizontal line and the horizontal plane where the bottom of the lock handle column is located is 25 mm.
In the special clamp for the V-shaped groove of the electric spark machining lock handle, the radius of the arc-shaped groove at the corner of the top of the lug boss is 11 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) the special fixture for the V-shaped groove of the electric spark lock handle solves the problems of clamping and aligning of the lock handle;
(2) the special fixture for the V-shaped groove of the electric spark lock handle solves the problem that the size and the geometric tolerance of the V-shaped groove are not easy to guarantee;
(3) the special fixture for the V-shaped groove of the electric spark lock handle provided by the invention realizes clamping and positioning of the lock handle, and has the advantages of low manufacturing cost, small manufacturing difficulty and simple operation; the special fixture for the V-shaped groove of the lock handle by using the electric spark ensures the size and the form and position tolerance of the V-shaped groove of the lock handle.
Drawings
FIG. 1 is a general view of a special fixture for V-shaped grooves according to the present invention;
FIG. 2 is a schematic view of the lock handle structure of the present invention;
FIG. 3 is a schematic view of the fastening pin and the pressing screw of the present invention;
FIG. 4 is a schematic view of the compression screw of the present invention engaged with a positioning shaft;
FIG. 5 is a schematic diagram of the dimensions of the V-groove of the present invention.
Detailed Description
The invention is further illustrated by the following examples.
The invention provides a special clamp for processing a V-shaped groove of a lock handle by electric spark, which realizes clamping and positioning of the lock handle by designing the special clamp for processing the V-shaped groove of the lock handle by electric spark.
The special fixture for processing the V-shaped groove of the lock handle by using the electric spark comprises a clamping seat 1, a compression screw 2, a pressing block 3, a compression screw 4, a positioning shaft 5, an eccentric wheel 6, a working electrode 7, a clamping screw 8, 2 confining pin shafts 9 and a lock handle 10, as shown in figure 1; wherein, the card holder 1 is horizontally arranged in an L-shaped structure; the lock handle 10 is placed at the corner of the upper surface of the L-shaped clamping seat 1; the pressing block 3 horizontally props against the lock handle 10 from the outer side, so that the lock handle 10 is tightly pressed at the corner of the L-shaped clamping seat 1; the compression screw 2 horizontally penetrates through the bulge at the front end of the clamping seat 1 and extends into the pressing block 3; 2 fastening pin shafts 9 symmetrically and vertically extend into the pressing block 3 to clamp two sides of the pressing screw rod 2; the positioning shaft 5 is arranged on the side wall of the top of the clamping seat 1; the compression screw 4 vertically extends into the clamping seat 1 from the top to limit the circumferential rotation of the positioning shaft 5; the eccentric wheel 6 is arranged below the positioning shaft 5; a gap is reserved between the eccentric wheel 6 and the positioning shaft 5 and used for clamping the lock handle 10; the working electrode 7 is vertically arranged above the lock handle 10; the clamping screw 8 is vertically arranged at the top of the working electrode 7, and the working electrode 7 is driven to vertically move downwards through the clamping screw 8, so that the discharge electrolytic machining of the locking handle 10 by the working electrode 7 is realized.
As shown in fig. 2, lock handle 10 includes lug bosses 101 and a lock handle post 102; wherein, the lug boss 101 is of a plate-shaped structure; the lock handle column 102 is horizontally arranged in the axial direction, and the lug boss 101 is arranged on the axial end face of the lock handle column 102, so that the lock handle column 102 is perpendicular to the lug boss 101; when the lock handle column 102 is installed, the lock handle column is axially and horizontally placed at the corner of the clamping seat 1; the pressing block 3 horizontally presses the outer side wall of the lock handle column 102 from the side; the ear-shaped boss 101 is attached to the side wall of the clamping seat 1, and the ear-shaped boss 101 is clamped in a gap between the eccentric wheel 6 and the positioning shaft 5 to realize the limiting.
The abutting surface of the pressing block 3 and the lock handle column 102 is an arc-shaped surface, and the shape of the arc-shaped surface corresponds to the outer side wall of the lock handle column 102. The top corner of the lug-shaped boss 101 is provided with an arc-shaped groove, the arc-shaped groove is consistent with the radian of the side wall of the positioning shaft 5, and the positioning shaft 5 is limited on one vertex angle of the lug-shaped boss 101. The gap between the positioning shaft 5 and the eccentric wheel 6 is adjusted by rotating the eccentric wheel 6, and the clamping of the lug-shaped boss 101 is realized.
As shown in fig. 3, arc-shaped grooves are symmetrically arranged on both sides of the shaft end of the compression screw 2; after the 2 fastening pin shafts 9 extend from the top of the pressing block 3, the pressing block 3 and the pressing screw 2 are embedded into the 2 arc-shaped grooves of the pressing screw 2, and the pressing block 3 is connected with the pressing screw 2.
As shown in fig. 4, the positioning shaft 5 axially extends into the clamping seat 1 perpendicular to the side wall of the clamping seat 1; the shaft section of the positioning shaft 5 is of a semicircular structure; when the compression screw 4 extends into the top of the clamping seat 1 from top to bottom, the compression screw is limited on the plane of the semicircular positioning shaft 5, and the circumferential rotation limitation of the positioning shaft 5 is realized.
The working electrode 7 vertically moves downwards to realize the processing of a V-shaped groove at the top of the lock handle column 102; the shape of the V-shaped groove corresponds to the head end of the bottom of the working electrode 7.
The diameter of the lock handle column 102 is 36 mm; after the processing is finished, the included angle between the first edge 11 and the second edge 12 of the V-shaped groove is 120 degrees; and the error range of the included angle between the first side 11 or the second side 12 and the vertical line is 60 +/-10'; the parallelism between the straight line of the bottom of the V-shaped groove and the axis of the lock handle column 102 is not more than 0.05 mm; a tangent parallel to the first edge 11 is found on the outer side wall of the lock handle column 102, and the distance error range between the first edge 11 and the tangent is17.5 0 +0.2 mm; finding a tangent parallel to the second edge 12 on the outer side wall of the lock handle column 102, wherein the distance error range between the second edge 12 and the tangent is 19 mm; the top of the first edge 11 is provided with a horizontal line which is 25mm from the horizontal plane of the bottom of the lock shank 102. The radius of the arc-shaped groove at the top corner of the lug boss 101 is 11mm, as shown in fig. 5.
The use method of the clamp is as follows:
1) the compression screw rod 2 penetrates through the boss of the clamping seat 1 through threaded connection and is in threaded connection with the pressing block 3, and the compression screw rod 2 and the pressing block 3 are locked through 2 fastening pin shafts 9.
2) And positioning and installing the positioning shaft 5 on the clamping seat 1 through the compression screw 4.
3) The eccentric wheel 6 is screwed onto the clamping base 1, so that the eccentric wheel 6 does not have to be screwed too tightly.
4) The U-shaped opening of the clamping seat 1 is fixed on an electric spark machine tool by adopting a screw, and the assembled clamp is fixedly arranged on the electric spark machine tool.
5) Installing the lock handle, rotating and screwing the eccentric wheel 6 to enable the arc-shaped groove at the top corner of the lug boss (101) to be tightly attached to the positioning shaft 5, enabling the bevel edge of the V-shaped groove of the lock handle to be in a vertical state in the machining process, locking the compression screw rod 2, enabling the arc surface of the pressing block 3 to be attached to the surface of the lock handle column 102, and completing clamping and fixing of the lock handle 10.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.

Claims (10)

1. The utility model provides an electric spark processing lock handle V type groove special fixture which characterized in that: comprises a clamping seat (1), a compression screw (2), a pressing block (3), a compression screw (4), a positioning shaft (5), an eccentric wheel (6), a working electrode (7), a clamping screw (8), 2 fastening pin shafts (9) and a lock handle (10); wherein, the clamping seat (1) is an L-shaped structure which is horizontally placed; the lock handle (10) is placed at the corner of the upper surface of the L-shaped clamping seat (1); the pressing block (3) horizontally props against the lock handle (10) from the outer side, so that the lock handle (10) is tightly pressed at the corner of the L-shaped clamping seat (1); the compression screw (2) horizontally penetrates through the bulge at the front end of the clamping seat (1) and extends into the pressing block (3); 2 fastening pin shafts (9) symmetrically and vertically extend into the pressing block (3) to clamp two sides of the pressing screw rod (2); the positioning shaft (5) is arranged on the side wall of the top of the clamping seat (1); the compression screw (4) vertically extends into the clamping seat (1) from the top to limit the circumferential rotation of the positioning shaft (5); the eccentric wheel (6) is arranged below the positioning shaft (5); a gap is reserved between the eccentric wheel (6) and the positioning shaft (5) and is used for clamping the lock handle (10); the working electrode (7) is vertically arranged above the lock handle (10); the clamping screw (8) is vertically arranged at the top of the working electrode (7), and the working electrode (7) is driven to vertically move downwards through the clamping screw (8), so that the discharge electrolytic machining of the working electrode (7) on the lock handle (10) is realized.
2. The special fixture for the V-shaped groove of the electric spark machining lock handle according to claim 1, characterized in that: the lock handle (10) comprises an ear-shaped boss (101) and a lock handle column (102); wherein, the lug boss (101) is of a plate-shaped structure; the lock handle column (102) is horizontally arranged in the axial direction, and the lug boss (101) is arranged on the axial end face of the lock handle column (102), so that the lock handle column (102) is perpendicular to the lug boss (101); when the lock is installed, the lock handle column (102) is axially and horizontally placed at the corner of the clamping seat (1); the pressing block (3) horizontally presses the outer side wall of the lock handle column (102) from the side surface; the ear-shaped boss (101) is attached to the side wall of the clamping seat (1), and the ear-shaped boss (101) is clamped in a gap between the eccentric wheel (6) and the positioning shaft (5) to realize limiting.
3. The special fixture for the V-shaped groove of the electric spark machining lock handle according to claim 2, characterized in that: the butt joint surface of the pressing block (3) and the lock handle column (102) is an arc-shaped surface, and the shape of the arc-shaped surface corresponds to the outer side wall of the lock handle column (102).
4. The special fixture for the V-shaped groove of the electric discharge machining lock handle according to claim 3, characterized in that: the top corner of ear-shaped boss (101) is provided with an arc-shaped groove, the arc-shaped groove is consistent with the radian of the side wall of positioning shaft (5), and the positioning shaft (5) is limited to one vertex angle of ear-shaped boss (101).
5. The special fixture for the V-shaped groove of the electric discharge machining lock handle according to claim 4, is characterized in that: the gap between the positioning shaft (5) and the eccentric wheel (6) is adjusted by rotating the eccentric wheel (6), and the clamping of the lug boss (101) is realized.
6. The special fixture for the V-shaped groove of the electric spark machining lock handle according to claim 1, characterized in that: arc-shaped grooves are symmetrically formed in two sides of the shaft end of the compression screw rod (2); after the 2 fastening pin shafts (9) extend into the pressing block (3) from the top, the pressing block (3) is embedded into the 2 arc-shaped grooves of the pressing screw rod (2), so that the pressing block (3) is connected with the pressing screw rod (2).
7. The special fixture for the V-shaped groove of the electric spark machining lock handle according to claim 1, characterized in that: the positioning shaft (5) axially extends into the clamping seat (1) in a manner of being vertical to the side wall of the clamping seat (1); the axial section of the positioning shaft (5) is of a semicircular structure; when the compression screw (4) extends into the top of the clamping seat (1) from top to bottom, the compression screw is limited on the plane of the semicircular positioning shaft (5), and the circumferential rotation of the positioning shaft (5) is limited.
8. The special fixture for the V-shaped groove of the electric discharge machining lock handle according to claim 5, characterized in that: the working electrode (7) vertically moves downwards to machine a V-shaped groove at the top of the lock handle column (102); the shape of the V-shaped groove corresponds to the head end of the bottom of the working electrode (7).
9. The special fixture for the V-shaped groove of the electric discharge machining lock handle according to claim 5, characterized in that: the diameter of the lock handle column (102) is 36 mm; after the processing is finished, the included angle between the first edge (11) and the second edge (12) of the V-shaped groove is 120 degrees; and is firstThe error ranges of included angles between the edge (11) or the second edge (12) and the vertical line are both 60 degrees +/-10'; the parallelism between the straight line of the bottom of the V-shaped groove and the axis of the lock handle column (102) is not more than 0.05 mm; a tangent parallel to the first edge (11) is found on the outer side wall of the lock handle column (102), and the distance error range between the first edge (11) and the tangent is
Figure FDA0003322317180000021
Finding a tangent parallel to the second edge (12) on the outer side wall of the lock handle column (102), wherein the distance error range of the second edge (12) and the tangent is 19 mm; the top of the first side (11) is provided with a horizontal line, and the distance between the horizontal line and the horizontal plane of the bottom of the lock handle column (102) is 25 mm.
10. The special fixture for the V-shaped groove of the electric discharge machining lock handle according to claim 4, is characterized in that: the radius of the arc-shaped groove at the corner of the top of the lug-shaped boss (101) is 11 mm.
CN202111250040.8A 2021-10-26 2021-10-26 Special fixture for V-shaped groove of lock handle for electrosparking Active CN113953608B (en)

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US4930955A (en) * 1988-02-29 1990-06-05 Sanden Corporation Apparatus and method for clamping a work piece for machining thereof
US5845897A (en) * 1996-04-25 1998-12-08 Tunkers Maschinenbau Gmbh Toggle lever clamp device for automobile body fabrication
CN104440329A (en) * 2014-11-11 2015-03-25 湖北三江航天红峰控制有限公司 Turning clamp and application thereof
CN205129435U (en) * 2015-10-27 2016-04-06 徐州工业职业技术学院 A milling machine fixture for processing lever part terminal surface
CN105690017A (en) * 2014-11-26 2016-06-22 无锡市锡北视听设备厂 Manufacturing method of positioning clamp for high-precision bevel hole drilling
CN106271734A (en) * 2016-08-29 2017-01-04 中航动力股份有限公司 A kind of line cutting positioning fixture
CN106584157A (en) * 2017-01-23 2017-04-26 浙江工业大学 Special milling clamp for right-end notch of main body part and cutting method for special milling clamp
CN109158918A (en) * 2018-11-08 2019-01-08 衡阳市振洋汽车配件有限公司 Ears part groove milling process special fixture
CN210909097U (en) * 2019-11-21 2020-07-03 西安华旭电气自动化技术有限公司 Special drilling clamp for L-shaped parts
CN211072635U (en) * 2019-12-04 2020-07-24 四川航天烽火伺服控制技术有限公司 Rapid clamping fixture
CN112091653A (en) * 2020-08-31 2020-12-18 贵州新安航空机械有限责任公司 Lathe fixture for processing eccentric hole shaft sleeve
CN112517968A (en) * 2020-11-27 2021-03-19 四川航天长征装备制造有限公司 Quick positioning circumferential drilling device and method for pull rod type parts on valve

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930955A (en) * 1988-02-29 1990-06-05 Sanden Corporation Apparatus and method for clamping a work piece for machining thereof
US5845897A (en) * 1996-04-25 1998-12-08 Tunkers Maschinenbau Gmbh Toggle lever clamp device for automobile body fabrication
CN104440329A (en) * 2014-11-11 2015-03-25 湖北三江航天红峰控制有限公司 Turning clamp and application thereof
CN105690017A (en) * 2014-11-26 2016-06-22 无锡市锡北视听设备厂 Manufacturing method of positioning clamp for high-precision bevel hole drilling
CN205129435U (en) * 2015-10-27 2016-04-06 徐州工业职业技术学院 A milling machine fixture for processing lever part terminal surface
CN106271734A (en) * 2016-08-29 2017-01-04 中航动力股份有限公司 A kind of line cutting positioning fixture
CN106584157A (en) * 2017-01-23 2017-04-26 浙江工业大学 Special milling clamp for right-end notch of main body part and cutting method for special milling clamp
CN109158918A (en) * 2018-11-08 2019-01-08 衡阳市振洋汽车配件有限公司 Ears part groove milling process special fixture
CN210909097U (en) * 2019-11-21 2020-07-03 西安华旭电气自动化技术有限公司 Special drilling clamp for L-shaped parts
CN211072635U (en) * 2019-12-04 2020-07-24 四川航天烽火伺服控制技术有限公司 Rapid clamping fixture
CN112091653A (en) * 2020-08-31 2020-12-18 贵州新安航空机械有限责任公司 Lathe fixture for processing eccentric hole shaft sleeve
CN112517968A (en) * 2020-11-27 2021-03-19 四川航天长征装备制造有限公司 Quick positioning circumferential drilling device and method for pull rod type parts on valve

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