CN106425582A - Special fixture for milling split surfaces of connecting rods - Google Patents
Special fixture for milling split surfaces of connecting rods Download PDFInfo
- Publication number
- CN106425582A CN106425582A CN201611061160.2A CN201611061160A CN106425582A CN 106425582 A CN106425582 A CN 106425582A CN 201611061160 A CN201611061160 A CN 201611061160A CN 106425582 A CN106425582 A CN 106425582A
- Authority
- CN
- China
- Prior art keywords
- push rod
- connecting rod
- shaped
- pressing block
- special fixture
- 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.)
- Granted
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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
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a special fixture for milling split surfaces of connecting rods. The special fixture comprises a base, a stand column, a support plate and a T-shaped fixture body; a servo motor and a guide rail are arranged on the support plate; a cylindrical push rod is arranged on the guide rail; an output end of the servo motor is connected with the tail end of the cylindrical push rod through a ball screw; the front end of the cylindrical push rod is connected with an U-shaped frame; small swing pressing blocks are respectively arranged at two ends of the U-shaped frame; two sets of large pressing block modules are symmetrically arranged on two sides of the cylindrical push rod; the large pressing block modules include connecting rods, large swing pressing blocks and swing rods; one ends of the connecting rods are connected with the cylindrical push rod through bolts; two ends of the swing rods are rotationally connected with the other ends of the large swing pressing blocks and the connecting rods through cylinder pins; and the middle parts of the swing rods are rotationally connected with the support plate through pin screws. The special fixture is applied to a split surface milling procedure of the connecting rods, is high in automation degree, can realize synchronous clamping machining of two sets of connecting rods, and greatly improves the production efficiency of the connecting rods.
Description
Technical field
The present invention relates to machinery field, specifically, it is related to one kind dedicated for engine link processing unit (plant),
It is related specifically to a kind of special fixture of milling connecting rod split surface.
Background technology
Continuous improvement with current living standard and industrial or agricultural modernization, various automatic machineries come into our family
Door, for example various motorcycles, car etc.；Cultivator agriculturally, seeder, harvester also instead of manual labor in the past
Make.Therefore, the vapour of above-mentioned various machine, the demand of Diesel engine also increase therewith so that there being " the big parts of electromotor five
One of " the Machining of Connecting Rod production scale of title progressively expands.On the premise of ensureing quality, how to improve the production yields of connecting rod,
Just become a problem demanding prompt solution.Because the processing technique of connecting rod is sufficiently complex, only improve each step of connecting rod
Rapid working (machining) efficiency, is finally possible to improve the production outline of connecting rod.And milling connecting rod split surface fixture once can only clamp
A set of connecting rod cap and gonnecting rod body with milling, and milling connecting rod split surface fixture can only hand-operated clamping, working (machining) efficiency is very low.
Content of the invention
Present invention aims to deficiency of the prior art, provide a kind of special fixture of milling connecting rod split surface,
To solve the above problems.
Technical problem solved by the invention can employ the following technical solutions to realize：
A kind of special fixture of milling connecting rod split surface, including base, pillar, gripper shoe and T-shaped clamp body, gripper shoe is passed through
On base, located at the front end of gripper shoe, gripper shoe is provided with servomotor and guide rail to T-shaped clamp body to pillar, and guide rail sets
Having can be along the cylindrical push rod of slide, and the outfan of servomotor passes through the tail end phase of ball-screw and cylindrical push rod
Even, the front end of cylindrical push rod is connected with U-shaped frame, the little wiggling and pressing block being respectively arranged at two ends with U-shaped of U-shaped frame；Cylindrical push rod
Both sides be respectively symmetrically and be provided with one group of big briquetting assembly, big briquetting assembly located at the outside of U-shaped frame, including connecting rod, U-shaped big
Wiggling and pressing block and the swing arm of W shape, one end of connecting rod is connected with cylindrical push rod by bolt, and the two ends of swing arm are passed through
Straight pin is rotatably connected with the other end of big wiggling and pressing block and connecting rod respectively, and the middle part of swing arm is passed through pin screw and propped up
Fagging is rotatably connected.
Further, described cylinder push rod is provided with U-shaped groove, and the upper and lower surface of U-shaped groove is provided with a through hole, even
Extension bar is bolted in the through hole of U-shaped groove.
Further, described cylinder push rod is threadeded with U-shaped frame, and little wiggling and pressing block passes through roundlet pin with U-shaped frame
Rotatably it is connected, ball-screw is connected with cylindrical push rod by feed screw nut.
Further, the end face at described little wiggling and pressing block two ends is provided with sheet rubber.
Further, parallels and angle bar are also included, angle bar is fixed at the front end of T-shaped clamp body, and parallels is located at T-shaped fixture
On body, parallels is provided with projection.
Compared with prior art, beneficial effects of the present invention are as follows：
Present configuration advantages of simple, the design of T-shaped clamp body, not only so that process two sets of workpiece to become feasible simultaneously,
And the workpiece on both sides can be pressed on T-shaped clamp body simultaneously, multiple degree of freedom of workpiece are eliminated.Using servomotor and
The rotation of servomotor is changed into linear motion by ball-screw, thus driving cylindrical push rod to do reciprocating linear fortune on guide rail
Dynamic.The left and right connecting rod becoming equal angular extent with cylindrical push rod, under the drive of cylindrical push rod, is done flat in horizontal plane
Move in face.Two swing arms being connected with connecting rod and being symmetrically distributed, are respectively turned around pin screw in the presence of connecting rod
Dynamic, thus acting on the big wiggling and pressing block being attached thereto, make big wiggling and pressing block compression gonnecting rod body surface.Pass through spiral shell with push rod one end
The U-shaped frame that stricture of vagina connects, does linear reciprocating motion together with push rod, thus driving the little wiggling and pressing block motion at two ends, final compression
Connecting rod cap and the side of gonnecting rod body.Thus, just eliminated respective 6 degree of freedom of two sets of workpiece, made to be positioned completely by workpiece, be
Milling gonnecting rod body and connecting rod cap provide guarantee simultaneously.
The present invention is driven by servomotor, large and small wiggling and pressing block automatic clamping mechanism, and high degree of automation, using T-shaped
Clamp body is carried out two sets of workpiece and is symmetrically simultaneously clamped on processing, substantially increases work efficiency, has established base for improving connecting rod yield
Plinth.The present invention is applied to the milling split surface operation of connecting rod, high degree of automation, is capable of two sets of connecting rods and simultaneously clamps on processing,
Substantially increase the production efficiency of connecting rod.
Brief description
Fig. 1 is the structural representation of the special fixture of milling connecting rod split surface of the present invention.
Fig. 2 is the partial structural diagram of the special fixture of milling connecting rod split surface of the present invention.
Fig. 3 is the top view of the special fixture of milling connecting rod split surface of the present invention.
Fig. 4 is the left view of the special fixture of milling connecting rod split surface of the present invention.
Specific embodiment
Technological means, creation characteristic, reached purpose and effect for making the present invention realize are easy to understand, with reference to
Specific embodiment, is expanded on further the present invention.
Referring to Fig. 1～Fig. 4, a kind of special fixture of milling connecting rod split surface of the present invention, including base 16, pillar
14th, gripper shoe 13 and T-shaped clamp body 9.Gripper shoe 13 passes through pillar 14 on base 16, and T-shaped clamp body 9 is located at gripper shoe 13
Front end, gripper shoe 13 is provided with servomotor 1 and guide rail 12, and guide rail 12 is provided with the cylindrical push rod that can slide along guide rail 12
4.The outfan of servomotor 1 is connected with the tail end of cylindrical push rod 4 by ball-screw 2, and the front end of cylindrical push rod 4 connects
There is U-shaped frame 5.The little wiggling and pressing block 20 being respectively arranged at two ends with U-shaped of U-shaped frame 5.The both sides of cylindrical push rod 4 are respectively symmetrically and are provided with
One group of big briquetting assembly, big briquetting assembly located at the outside of U-shaped frame 5, including connecting rod 17, the big wiggling and pressing block 22 of U-shaped and W
The swing arm 23 of shape.One end of connecting rod 17 is connected with cylindrical push rod 4 by bolt 18.Cylinder is passed through at the two ends of swing arm 23
Pin 25 is rotatably connected with the other end of big wiggling and pressing block 22 and connecting rod 17 respectively, and pin screw is passed through at the middle part of swing arm 23
24 are rotatably connected with gripper shoe 13.Pillar 14 is solid construction, and gripper shoe 13 is stretched out, in swing arm 23 in the top of pillar 14
Portion is rotatably connected with the top of pillar 14 by pin screw 24.
Cylindrical push rod 4 is provided with U-shaped groove, and the upper and lower surface of U-shaped groove is provided with a through hole.With cylindrical push rod 4
The one end becoming the connecting rod 17 of left and right setting of equal angular is fixed in the through hole of U-shaped groove by bolt 18.Roll during motion
The rotation of servomotor 1 is converted into the linear motion of feed screw nut 3 by ballscrew 2, thus driving the cylinder being attached thereto to push away
Bar 4 does straight reciprocating motion, and then drives U-shaped frame 5 straight reciprocating motion on guide rail 12, and passes through the connection that bolt 18 connects
Bar 17 then does plane motion under the drive of cylindrical push rod 4.
Cylindrical push rod 4 is threadeded with U-shaped frame 5, and little wiggling and pressing block 20 passes through the rotatable phase of roundlet pin with U-shaped frame 5
Even, ball-screw 2 is connected with cylindrical push rod 4 by feed screw nut 3.
The end face at little wiggling and pressing block 20 two ends is provided with sheet rubber 21, prevents contact from damaging workpiece 10 by pressure.
Also include parallels 7 and angle bar 8, angle bar 8 is fixed at the front end of T-shaped clamp body 9, and parallels 7 is located at T-shaped clamp body 9
On, parallels 7 is provided with projection.
U-shaped frame 5, under cylindrical push rod 4 thrust, moves along a straight line along guide rail 12, so that the two of little wiggling and pressing block 20
End end face is contacted with gonnecting rod body and connecting rod cap side, and little wiggling and pressing block 20 passes through the rotary fine adjustment of roundlet pin, and then imposes
Equilibrium is defeated and is close to the body of rod and connecting rod cap.In the same manner, big wiggling and pressing block 22 compresses gonnecting rod body surface in the presence of swing arm 23.Again
By T-shaped clamp body 9, parallels 7, angle bar 8 and replaceable locating pin 11, so that gonnecting rod body and connecting rod cap are positioned completely, it is milling
Cut split surface and provide guarantee.
Workpiece 10 includes gonnecting rod body and connecting rod cap, and gonnecting rod body and connecting rod cap are all positioned completely.Connecting rod cap surface and parallels 7
Surface contact eliminates 3 degree of freedom, and connecting rod caping shoulder eliminates 2 degree of freedom, little wiggling and pressing block 20 side with the bump contact of parallels 7
Face pressure tightly eliminates 1 degree of freedom, therefore just meets principle of six-point fixing.Gonnecting rod body surface is contacted with connecting rod cap surface cancellation
3 degree of freedom, the little head bore of gonnecting rod body passes through replaceable locating pin 11 to eliminate 2 degree of freedom, and side is disappeared by little wiggling and pressing block 20 compression
Remove 1 degree of freedom, therefore just meet principle of six-point fixing.
During using, servomotor 1 drives ball-screw 2 to rotate to the present invention, changes into circle by feed screw nut 3
The linear motion of cylindricality push rod 4, thus driving connecting rod 17 and U-shaped frame 5 rearward movement, thus away from T-shaped clamp body 9, now U
Shape frame 5 drives two little wiggling and pressing block 20 rearward movement, makes little wiggling and pressing block 20 from side away from T-shaped clamp body 9.And swing arm
23 drive two big wiggling and pressing blocks 22 to rotate clockwise around pin screw 24 in the presence of connecting rod 17, make big wiggling and pressing block
22 from front away from T-shaped clamp body 9.When reaching stroke set by cylindrical push rod 4, servomotor 1 stops operating, now
Large and small wiggling and pressing block is all away from T-shaped clamp body 9.Two connecting rod caps are individually positioned on the parallels 7 having fixed, connecting rod
The side of lid is contacted with the angle bar 8 being fixed on T-shaped clamp body 9, is then close to connecting rod cap surface again and places gonnecting rod body, side
Face is also contacted with angle bar 8, and the little head bore of gonnecting rod body is fixing with replaceable locating pin 11.Final servo motor 1 rotates, and makes cylindrical push rod
4 straight forward movement, so that each rod member motion being attached thereto, and then drive large and small wiggling and pressing block motion, from front and side
Face pressure is close to the body of rod and connecting rod cap.Clamping and so on and taking-up workpiece 10.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (5)
1. a kind of special fixture of milling connecting rod split surface it is characterised in that：Including base, pillar, gripper shoe and T-shaped clamp body,
Gripper shoe passes through pillar on base, and located at the front end of gripper shoe, gripper shoe is provided with servomotor and leads T-shaped clamp body
Rail, guide rail is provided with and can be pushed away with cylinder by ball-screw along the cylindrical push rod of slide, the outfan of servomotor
The tail end of bar is connected, and the front end of cylindrical push rod is connected with U-shaped frame, the little wiggling and pressing block being respectively arranged at two ends with U-shaped of U-shaped frame；
The both sides of cylindrical push rod are respectively symmetrically and are provided with one group of big briquetting assembly, big briquetting assembly located at the outside of U-shaped frame, including connecting
The swing arm of bar, the big wiggling and pressing block of U-shaped and W shape, one end of connecting rod is connected with cylindrical push rod by bolt, swing arm
Two ends be rotatably connected with the other end of big wiggling and pressing block and connecting rod respectively by straight pin, pin is passed through at the middle part of swing arm
Oncomelania silk is rotatably connected with gripper shoe.
2. milling connecting rod split surface according to claim 1 special fixture it is characterised in that：Set on described cylinder push rod
There is U-shaped groove, the upper and lower surface of U-shaped groove is provided with a through hole, and connecting rod is bolted in the through hole of U-shaped groove.
3. milling connecting rod split surface according to claim 1 special fixture it is characterised in that：Described cylinder push rod and U
Shape frame is threaded, and little wiggling and pressing block is rotatably connected by roundlet pin with U-shaped frame, and ball-screw passes through feed screw nut and circle
Cylindricality push rod is connected.
4. milling connecting rod split surface according to claim 1 special fixture it is characterised in that：Described little wiggling and pressing block two ends
End face be provided with sheet rubber.
5. milling connecting rod split surface according to claim 1 special fixture it is characterised in that：Also include parallels and angle bar,
Angle bar is fixed at the front end of T-shaped clamp body, and on T-shaped clamp body, parallels is provided with projection to parallels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061160.2A CN106425582B (en) | 2016-11-28 | 2016-11-28 | A kind of special fixture of milling connecting rod split surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611061160.2A CN106425582B (en) | 2016-11-28 | 2016-11-28 | A kind of special fixture of milling connecting rod split surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106425582A true CN106425582A (en) | 2017-02-22 |
| CN106425582B CN106425582B (en) | 2018-05-01 |
Family
ID=58219800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611061160.2A Expired - Fee Related CN106425582B (en) | 2016-11-28 | 2016-11-28 | A kind of special fixture of milling connecting rod split surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106425582B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095483A (en) * | 2019-05-09 | 2019-08-06 | 上海电机学院 | One kind overcoming the curved film feed device of long cantilever |
| CN111515440A (en) * | 2020-04-03 | 2020-08-11 | 上海工程技术大学 | Clamp for milling half surfaces of connecting rod body and cover |
| CN112355676A (en) * | 2020-11-02 | 2021-02-12 | 湖北迪星金属科技有限公司 | Mainframe box clamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19900292C2 (en) * | 1998-01-26 | 2002-10-02 | Gen Motors Corp | Universal clamping device and method for positioning and clamping for connecting rods |
| CN103495886A (en) * | 2013-09-29 | 2014-01-08 | 柳州明宇机械有限公司 | Connecting rod fine boring fixture |
| CN103624564A (en) * | 2013-09-13 | 2014-03-12 | 安阳工学院 | Clamp for simultaneously machining three sets of connecting rod bodies and connecting rod covers |
| CN104325327A (en) * | 2014-10-27 | 2015-02-04 | 潍坊盛瑞动力机械科技有限公司 | Hydraulic clamping and positioning device for slope processing of connecting rod |
| CN104440216A (en) * | 2014-11-06 | 2015-03-25 | 丁毅 | Clamp for milling big-head end face and small-head end face of connecting rod |
| CN104842199A (en) * | 2015-05-26 | 2015-08-19 | 宁波市凯博数控机械有限公司 | Pneumatic fixture capable of quickly clamping crankshaft connecting rod |
-
2016
- 2016-11-28 CN CN201611061160.2A patent/CN106425582B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19900292C2 (en) * | 1998-01-26 | 2002-10-02 | Gen Motors Corp | Universal clamping device and method for positioning and clamping for connecting rods |
| CN103624564A (en) * | 2013-09-13 | 2014-03-12 | 安阳工学院 | Clamp for simultaneously machining three sets of connecting rod bodies and connecting rod covers |
| CN103495886A (en) * | 2013-09-29 | 2014-01-08 | 柳州明宇机械有限公司 | Connecting rod fine boring fixture |
| CN104325327A (en) * | 2014-10-27 | 2015-02-04 | 潍坊盛瑞动力机械科技有限公司 | Hydraulic clamping and positioning device for slope processing of connecting rod |
| CN104440216A (en) * | 2014-11-06 | 2015-03-25 | 丁毅 | Clamp for milling big-head end face and small-head end face of connecting rod |
| CN104842199A (en) * | 2015-05-26 | 2015-08-19 | 宁波市凯博数控机械有限公司 | Pneumatic fixture capable of quickly clamping crankshaft connecting rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110095483A (en) * | 2019-05-09 | 2019-08-06 | 上海电机学院 | One kind overcoming the curved film feed device of long cantilever |
| CN111515440A (en) * | 2020-04-03 | 2020-08-11 | 上海工程技术大学 | Clamp for milling half surfaces of connecting rod body and cover |
| CN112355676A (en) * | 2020-11-02 | 2021-02-12 | 湖北迪星金属科技有限公司 | Mainframe box clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106425582B (en) | 2018-05-01 |
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| C10 | Entry into substantive examination | ||
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Granted publication date: 20180501 Termination date: 20211128 |