CN107160201A - A kind of clamp for machining of L-shaped straight pin - Google Patents
A kind of clamp for machining of L-shaped straight pin Download PDFInfo
- Publication number
- CN107160201A CN107160201A CN201710507935.2A CN201710507935A CN107160201A CN 107160201 A CN107160201 A CN 107160201A CN 201710507935 A CN201710507935 A CN 201710507935A CN 107160201 A CN107160201 A CN 107160201A
- Authority
- CN
- China
- Prior art keywords
- straight pin
- shaped straight
- machining
- clamp
- positioning seat
- 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
Links
- 238000003754 machining Methods 0.000 title claims abstract description 38
- 238000003825 pressing Methods 0.000 claims description 24
- 238000012856 packing Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices 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
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention relates to a kind of clamp for machining of L-shaped straight pin, including positioning seat, clamping device, positioning seat upper end is provided with boss, boss upper surface is provided with positioning hole, positioning hole intersects with boss side surfaces, and one end of L-shaped straight pin is contained in positioning hole, and clamping device is installed on positioning seat, clamping device is pressed against the other end of L-shaped straight pin, L-shaped straight pin lateral surface is fitted in positioning hole medial surface；The clamp for machining provided using the present invention, L-shaped straight pin is positioned by the positioning hole being arranged on positioning seat, clamping device makes L-shaped straight pin side fit in positioning hole medial surface, add the contact area between workpiece and fixture locating surface, avoid and weigh or scratch each surface of workpiece wounded, the clamp for machining clamping force is smaller, and can this clamping more than one piece L-shaped straight pin carry out batch machining, improve machining accuracy, crudy and production efficiency, with it is simple in construction, with low cost, easy to operate the features such as.
Description
Technical field
The present invention relates to machining process equipment field, more particularly to a kind of clamp for machining of L-shaped straight pin.
Background technology
At present, with manufacturing development, in industrial circles such as Aeronautics and Astronautics, commonly used many peculiarly shaped zero
Part, one of which L-shaped straight pin, its technical requirement on design is provided with axle φ 2.54 ± 0.003 in its lower end, and upper end is provided with 2.55
× 4.95 " U " type boss, the parallelism error requirement between the upper surface and lower surface of the boss is less than 0.01 millimeter, the L
Shape straight pin requirement on machining accuracy is high, and clamping is difficult on lathe, and difficulty of processing is big, when being cut off in machine-shaping part, cut-out
Face is that boss upper surface can leave a small pylon, when carrying out the processing of this end face, in the prior art, the such L-shaped circle of processing
Pin typically carries out clamping using vice or copper sheathing, is then processed again；But, because spare part outside measurement is smaller, L-shaped circle
Pin workpiece is difficult to be clamped；Want precision prescribed very high due to workpiece each finished surface, when being clamped using vice, vice
Clamping force is difficult to control to, and is easily weighed wounded, is scratched workpiece surface；And during using vice or copper sheathing clamping, processing can only every time
The depth of parallelism mismachining tolerance of part lower planes is difficult to ensure that after the completion of one workpiece of clamping, clamping, part crudy is caused
Relatively low, production efficiency is low.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of clamp for machining of L-shaped straight pin.
The invention provides a kind of clamp for machining of L-shaped straight pin, including positioning seat, clamping device, on the positioning seat
End is provided with boss, and the boss upper surface is provided with positioning hole, and the positioning hole intersects with boss side surfaces, and the clamping device is installed
In on the positioning seat.
The positioning hole is blind hole.
The clamping device includes bolt, pressing plate, packing ring and nut, and the positioning seat is provided with through hole, pressing plate and packing ring
It is set on bolt and the positioning seat both sides that are placed in, bolt is connected through the through hole with nut.
The clamping device also includes stop screw, and the bolt is provided with stopper slot, stop screw and the positioning seat
It is connected through a screw thread and intersects with stopper slot.
Dorsad the packing ring side is provided with the first pressure surface and the second pressure surface to the pressing plate, and the first pressure surface is plane, the second pressure
Face is arc surface.
The second pressure surface arc heights of roofs is less than first pressure surface height.
The bolt head lower surface is arc surface, and the packing ring is provided with the groove matched with the bolt.
The nut and the washer contacts face are arc surfaces, and the packing ring is provided with the groove matched with the nut.
The clamp for machining also includes bottom plate, and the positioning seat is installed on bottom plate upper surface, and bottom plate is connected with lathe.
The beneficial effects of the present invention are：
Using the clamp for machining of L-shaped straight pin provided by the present invention, including positioning seat, clamping device, the positioning seat
Upper end is provided with boss, and the boss upper surface is provided with positioning hole, and the positioning hole intersects with boss side surfaces, the L-shaped straight pin
One end be contained in the positioning hole, the clamping device is installed on the positioning seat, and the clamping device is pressed against the L
The other end of shape straight pin, makes the L-shaped straight pin lateral surface fit in the positioning hole medial surface；There is provided using the present invention
Clamp for machining, L-shaped straight pin is positioned by the positioning hole being arranged on positioning seat, makes L-shaped straight pin by clamping device
Side fits in positioning hole medial surface, adds the contact area between workpiece and fixture locating surface, it is to avoid weighs wounded or scratches
Each surface of workpiece, it is smaller using the gripping means grips power, and can clamped one time more than one piece L-shaped straight pin according to actual needs, enter
Machining accuracy is higher after the completion of row Batch Cutting, clamping workpiece, and crudy is improved, and substantially increases production effect
Rate, the present invention is with low cost with simple in construction, the features such as easy to operate, can be in Aeronautics and Astronautics field of machining extensively
Popularization and application.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of positioning seat of the present invention；
Fig. 3 is the structural representation of pressing plate of the present invention；
Fig. 4 is the structural representation of packing ring of the present invention.
In figure：1- positioning seats, 2- clamping devices, 3-L shape straight pins, 4- bolts, 5- pressing plates, 6- packing rings, 7- nuts, 8- limits
Position screw, 9- bottom plates, 41- stopper slots, the pressure surfaces of 51- first, the pressure surfaces of 52- second, 61- grooves, 101- boss, 102- positioning holes,
103- boss side surfaces, 104- through holes.
Embodiment
Technical scheme is described further below in conjunction with accompanying drawing, but required protection domain does not limit to
In described；
The invention provides a kind of clamp for machining of L-shaped straight pin, as shown in Figure 1 and Figure 2, including positioning seat 1, clamping are filled
2 are put, the upper end of positioning seat 1 is provided with boss 101, the upper surface of boss 101 is provided with positioning hole 102, positioning hole 102 and boss side surfaces 103
Intersecting, one end of L-shaped straight pin 3 is contained in positioning hole 102, and clamping device 2 is installed on positioning seat 1, and clamping device 2 is pressed against
The other end of L-shaped straight pin 3, makes the lateral surface of L-shaped straight pin 3 fit in the medial surface of positioning hole 102.Use adding that the present invention is provided
Clamping apparatus, L-shaped straight pin is positioned by the positioning hole being arranged on positioning seat, makes L-shaped straight pin side by clamping device
Face fits in positioning hole medial surface, add the contact area between workpiece and fixture locating surface, it is to avoid weigh or scratch work wounded
Each surface of part, it is smaller using the gripping means grips power, and can clamped one time more than one piece L-shaped straight pin according to actual needs, carry out
Machining accuracy is higher after the completion of Batch Cutting, clamping workpiece, and crudy is improved, and substantially increases production efficiency,
The present invention is with low cost with simple in construction, the features such as easy to operate, can extensively be pushed away in Aeronautics and Astronautics field of machining
Wide application.
Positioning hole 102 is blind hole.Using technical scheme, preferred orientation hole 102 is blind hole, when by L-shaped cylinder
When pin is installed in positioning hole, positioning hole inner bottom surface is plane, and L-shaped straight pin is that face is contacted with positioning hole inner bottom surface, is reduced
The effect pressure that clamping device is acted on L-shaped straight pin, it is to avoid weigh wounded, scratch each surface of workpiece.
The diameter of positioning hole 102 is more than the diameter of L-shaped straight pin 3.Using technical scheme, preferred orientation hole 102 is straight
Footpath is more than the diameter of L-shaped straight pin 3, and preferably diameter is only somewhat larger, when clamping L-shaped straight pin, the supporting surface of L-shaped straight pin
It is positioning hole medial surface i.e. arc surface, preferably boss bottom surface is in same level, makes shape between L-shaped straight pin and supporting surface
Into face contact, the effect pressure that clamping device is acted on L-shaped straight pin is reduced, it is to avoid weigh wounded, scratch each surface of workpiece,
Further, L-shaped straight pin supporting surface should be determined, the positioning hole count of L-shaped straight pin according to workpiece locating surface shape and size
Amount is settable multiple, is determined according to produce reality situation.
Clamping device 2 includes bolt 4, pressing plate 5, packing ring 6 and nut 7, and positioning seat 1 is provided with through hole 104, pressing plate 5 and pad
Circle 6 is set on bolt 4 and the both sides of positioning seat 1 that are placed in, and bolt 4 is connected through the through hole 104 with nut 7, makes pressing plate 5 by L
The end face of shape straight pin 3 is flattened.Using technical scheme, preferably through hole 104 is arranged at boss subjacent, with boss
Side is vertical, and when nut 7 is tightened, pressing plate 5 respectively clamps L-shaped straight pin from positioning seat both sides, clamping device operation
Power is smaller, and clamping force is also smaller, it is to avoid weighs wounded, scratch workpiece surface, and disposably can be criticized clamping more than one piece L-shaped straight pin
Amount processing, improves production efficiency.
Clamping device 2 also includes stop screw 8, and the screw rod of bolt 4 is provided with stopper slot 41, stop screw 8 and the spiral shell of positioning seat 1
Line is connected and intersected with stopper slot 41.Using technical scheme, stop screw is preferably holding screw, positioning seat upper end
Face is provided with screwed hole, when when stop screw is screwed in screwed hole without tightening, makes bolt 4 remain able to horizontally slip,
Make the convenient disassembly of clamping device, when tightening stop screw, then limit horizontally slipping for bolt 4, make the folder of L-shaped straight pin
Tight more reliable, it is more accurate to position.
As shown in figure 3, pressing plate 5 is towards the side of positioning seat 1 provided with the first pressure surface 51 contacted with L-shaped straight pin 3 and with determining
The second pressure surface 52 that position seat 1 is contacted, the first pressure surface 51 is plane, and the second pressure surface 52 is arc surface.Use the technical side of the present invention
Case, pressing plate compressing component end is plane, and the contact surface of pressing plate and positioning seat is arc surface, preferably the first pressure surface and the second pressure surface
Length tolerance of the difference in height due to L-shaped straight pin part in this direction is determined, for example, L-shaped straight pin part is in pressing plate axial direction
On size be 6 ± 0.1, then the difference in height that the first pressure surface and the second pressure surface can be set is 0.2 millimeter, when clamping L-shaped straight pin
When, the difference in height existed due to the first pressure surface and the second pressure surface, it is ensured that be plane contact between pressing plate and workpiece, it is ensured that apply
Thrust on workpiece is uniformly distributed, it is ensured that workpiece upper surface is parallel with boss bottom surface, it is ensured that machining accuracy, is improved and is added
Working medium amount.
The height of second pressure surface 52 is less than the height of the first pressure surface 51.Using technical scheme, due to the first pressure surface
The difference in height existed with the second pressure surface, it is ensured that be plane contact between pressing plate and workpiece, it is ensured that be applied to the compression on workpiece
Power is uniformly distributed, it is ensured that workpiece upper surface is parallel with boss bottom surface, it is ensured that machining accuracy, improves crudy.
As shown in figure 4, the head lower surface of bolt 4 is arc surface, packing ring 6 is provided with the groove 61 matched with bolt 4.Use
Technical scheme, makes to be that face is contacted between bolt head and pressing plate, reduces the pressure acted on workpiece, make active force
Amount is uniformly distributed on pressing plate, further, and the head lower surface of bolt 4 is arc surface, arc surface increase pressing plate and bolt head it
Between contact area, further reduce the pressure acted on workpiece, and make bolt-center axis and through hole central axis phase
Overlap, improve machining accuracy and crudy.
As shown in figure 4, nut 7 is arc surface with the contact surface of packing ring 6, packing ring 6 is provided with the groove 61 matched with nut 7.
Using technical scheme, make to be that face is contacted between nut and pressing plate, reduce the pressure acted on workpiece, make effect
Strength is uniformly distributed on pressing plate, further, and nut end face is arc surface, and arc surface increases connecing between pressing plate and bolt head
Contacting surface is accumulated, and further reduces the pressure acted on workpiece, and bolt-center axis is coincided with through hole central axis, is carried
High machining accuracy and crudy.
The clamp for machining also includes bottom plate 9, and the positioning seat 1 is installed on the upper surface of bottom plate 9, and bottom plate 9 is connected with lathe.
Using technical scheme, preferably use fastener and connect as one positioning seat with bottom plate, preferably use grinding machine progress
Processing, bottom plate is adsorbable on platen, can also set company accordingly with platen on bottom plate as needed
Binding structure, the fixture have it is simple in construction, it is with low cost, can be in Aeronautics and Astronautics field of machining the features such as easy to operate
Wide popularization and application.
Further, during the clamp for machining provided using the present invention, it can be divided according to the appearance and size of L-shaped straight pin
Class, then will carry out batch machining after L-shaped straight pin batch clamping, when unloading L-shaped straight pin workpiece, it is only necessary to unclamp nut,
The instruments such as tweezers can be used to take out workpiece.
Claims (9)
1. a kind of clamp for machining of L-shaped straight pin, it is characterised in that：Including positioning seat (1), clamping device (2), the positioning seat
(1) upper end is provided with boss (101), and boss (101) upper surface is provided with positioning hole (102), the positioning hole (102) and boss
(103) intersect sideways, and the clamping device (2) is installed on the positioning seat (1).
2. a kind of clamp for machining of L-shaped straight pin as claimed in claim 1, it is characterised in that：The positioning hole (102) is blind
Hole.
3. a kind of clamp for machining of L-shaped straight pin as claimed in claim 1, it is characterised in that：The clamping device (2) includes
Bolt (4), pressing plate (5), packing ring (6) and nut (7), the positioning seat (1) are provided with through hole (104), pressing plate (5) and packing ring
(6) it is set on bolt (4) and the positioning seat (1) both sides that are placed in, bolt (4) connects through the through hole (104) with nut (7)
Connect.
4. a kind of clamp for machining of L-shaped straight pin as described in claim 1 or 3, it is characterised in that：The clamping device (2)
Also include stop screw (8), the bolt (4) is provided with stopper slot (41), and stop screw (8) passes through with the positioning seat (1)
It is threadedly coupled and intersects with stopper slot (41).
5. a kind of clamp for machining of L-shaped straight pin as claimed in claim 3, it is characterised in that：The pressing plate (5) is dorsad described
Packing ring (6) side is provided with the first pressure surface (51) and the second pressure surface (52), and the first pressure surface (51) is plane, and the second pressure surface (52) is round
Cambered surface.
6. a kind of clamp for machining of L-shaped straight pin as claimed in claim 5, it is characterised in that：Second pressure surface (52) arc
Heights of roofs is less than first pressure surface (51) height.
7. a kind of clamp for machining of L-shaped straight pin as claimed in claim 3, it is characterised in that：Bolt (4) the head lower end
Face is arc surface, and the packing ring (6) is provided with the groove (61) matched with the bolt (4).
8. a kind of clamp for machining of L-shaped straight pin as claimed in claim 3, it is characterised in that：The nut (7) and the pad
It is arc surface to enclose (6) contact surface, and the packing ring (6) is provided with the groove (61) matched with the nut (7).
9. a kind of clamp for machining of L-shaped straight pin as claimed in claim 1, it is characterised in that：The clamp for machining also includes
Bottom plate (9), the positioning seat (1) is installed on bottom plate (9) upper surface, and bottom plate (9) is connected with lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507935.2A CN107160201A (en) | 2017-06-28 | 2017-06-28 | A kind of clamp for machining of L-shaped straight pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507935.2A CN107160201A (en) | 2017-06-28 | 2017-06-28 | A kind of clamp for machining of L-shaped straight pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107160201A true CN107160201A (en) | 2017-09-15 |
Family
ID=59826402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710507935.2A Pending CN107160201A (en) | 2017-06-28 | 2017-06-28 | A kind of clamp for machining of L-shaped straight pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107160201A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58217236A (en) * | 1982-06-14 | 1983-12-17 | Nippon Denso Co Ltd | Product carrying jig |
| JPS6393535A (en) * | 1986-10-04 | 1988-04-23 | Nitto Kohki Co Ltd | Clamping device |
| CN201300320Y (en) * | 2008-11-26 | 2009-09-02 | 天水星火机床有限责任公司 | Exposed clip panel clamping device |
| CN203197617U (en) * | 2013-03-13 | 2013-09-18 | 浙江工商职业技术学院 | Jig for machine tool sleeve type part |
| CN203853838U (en) * | 2014-06-03 | 2014-10-01 | 温州职业技术学院 | Clamp for gun drilling on narrow and long workpiece |
| CN104708348A (en) * | 2013-12-12 | 2015-06-17 | 无锡市昶新机械制造有限公司 | Method for using high-precision positioning clamp for drilling |
| CN104959863A (en) * | 2015-07-02 | 2015-10-07 | 中国航天科技集团公司长征机械厂 | Turning clamp for plate part hole and inner annular groove machining |
| CN105983866A (en) * | 2016-07-01 | 2016-10-05 | 中航飞机股份有限公司西安飞机分公司 | Milling method for butt groove for hinge part and milling clamp |
| CN205968298U (en) * | 2016-08-31 | 2017-02-22 | 抚州申铃汽车配件有限责任公司 | Outline dysmorphism flange hole adds clamping apparatus |
| CN206998326U (en) * | 2017-06-28 | 2018-02-13 | 贵州黎阳国际制造有限公司 | A kind of positioning fixture for being used to process L-shaped pin |
-
2017
- 2017-06-28 CN CN201710507935.2A patent/CN107160201A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58217236A (en) * | 1982-06-14 | 1983-12-17 | Nippon Denso Co Ltd | Product carrying jig |
| JPS6393535A (en) * | 1986-10-04 | 1988-04-23 | Nitto Kohki Co Ltd | Clamping device |
| CN201300320Y (en) * | 2008-11-26 | 2009-09-02 | 天水星火机床有限责任公司 | Exposed clip panel clamping device |
| CN203197617U (en) * | 2013-03-13 | 2013-09-18 | 浙江工商职业技术学院 | Jig for machine tool sleeve type part |
| CN104708348A (en) * | 2013-12-12 | 2015-06-17 | 无锡市昶新机械制造有限公司 | Method for using high-precision positioning clamp for drilling |
| CN203853838U (en) * | 2014-06-03 | 2014-10-01 | 温州职业技术学院 | Clamp for gun drilling on narrow and long workpiece |
| CN104959863A (en) * | 2015-07-02 | 2015-10-07 | 中国航天科技集团公司长征机械厂 | Turning clamp for plate part hole and inner annular groove machining |
| CN105983866A (en) * | 2016-07-01 | 2016-10-05 | 中航飞机股份有限公司西安飞机分公司 | Milling method for butt groove for hinge part and milling clamp |
| CN205968298U (en) * | 2016-08-31 | 2017-02-22 | 抚州申铃汽车配件有限责任公司 | Outline dysmorphism flange hole adds clamping apparatus |
| CN206998326U (en) * | 2017-06-28 | 2018-02-13 | 贵州黎阳国际制造有限公司 | A kind of positioning fixture for being used to process L-shaped pin |
Non-Patent Citations (1)
| Title |
|---|
| 王启义: "《金属切削机床设计》", 东北工业学院出版社, pages: 292 - 293 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |