CN202399059U - Clamp for fine boring of large and small end holes of connecting rod - Google Patents

Clamp for fine boring of large and small end holes of connecting rod Download PDF

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Publication number
CN202399059U
CN202399059U CN2011205648027U CN201120564802U CN202399059U CN 202399059 U CN202399059 U CN 202399059U CN 2011205648027 U CN2011205648027 U CN 2011205648027U CN 201120564802 U CN201120564802 U CN 201120564802U CN 202399059 U CN202399059 U CN 202399059U
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CN
China
Prior art keywords
small
big
rod
plate
hydraulic cylinder
Prior art date
Application number
CN2011205648027U
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Chinese (zh)
Inventor
刘雪萍
齐伟光
Original Assignee
承德苏垦银河连杆股份有限公司
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Application filed by 承德苏垦银河连杆股份有限公司 filed Critical 承德苏垦银河连杆股份有限公司
Priority to CN2011205648027U priority Critical patent/CN202399059U/en
Application granted granted Critical
Publication of CN202399059U publication Critical patent/CN202399059U/en

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Abstract

The utility model discloses a clamp for fine boring of large and small end holes of a connecting rod. According to the utility model, a large end is positioned by adopting a positioning pin and a positioning surface of a positioning block; a large-end positioning pin is placed in a large-end hole by using a short chamfered edge pin to control 1 degree of freedom, and a small-end positioning pin adopts a short round pin to control 2 degrees of freedom; a large-end floating platen is pressed by a large-end hydraulic cylinder so as to press the large head of the connecting rod, a small-end hydraulic cylinder drives a small-head floating platen to press a small-end press ring so as to press the small head of the connecting rod; and 3 degrees of freedom and 6 degrees of freedom are controlled to completely positioning of the connecting rod. The clamp disclosed by the utility model has the advantages that design is simple, positioning is correct, and operation is convenient; the whole process is controlled by a tool program, thus automation degree is high; the clamp is especially suitable for the connecting rod without a side positioning surface; and the clamp is strong in university and can meet the requirement for producing different types of connecting rods.

Description

Connecting rod right boring size stomidium anchor clamps

Technical field

The utility model relates to the automobile connecting bar manufacture field, is specifically related to a kind of connecting rod right boring size stomidium anchor clamps.

Background technology

The right boring processing of automobile connecting bar size stomidium adopts vertical machining centre to carry out, and manually lives up and down, can process six at every turn, with little stomidium, hold locating surface (side), connecting rod end face to realize locating fully greatly.In the prior art, wrist-pin end of connecting rod adopts short alignment pin location, the X of control link and Y direction; Two frees degree of restriction workpiece, 3 frees degree of connecting rod end face restriction, 1 free degree of big end side surface restriction; The shortcoming of this scheme is a necessary first process side locating surface before the fine finishining size stomidium, is used for working procedure processing location, back, and machining processes is more; Man-hour is longer, and new product does not just have side-locating face when design now, so black skin can't accurately be located; Therefore need the new anchor clamps of design, to satisfy the right boring processing needs of connecting rod size stomidium.

The utility model content

The utility model provides a kind of connecting rod right boring size stomidium anchor clamps, can solve the right boring of connecting rod size stomidium and add the problem that can not accurately locate man-hour.

For realizing above-mentioned purpose, adopt following technical scheme:

A kind of connecting rod right boring size stomidium anchor clamps; Comprise connecting rod, hydraulic cylinder and positioning element, said positioning element comprises big end alignment pin, small end alignment pin and holds locating piece, small end locating piece greatly that the big small end of said connecting rod is positioned over respectively under big end locating piece and the small end locating piece; Said big end locating piece is connected big end hydraulic cylinder through big end clamp plate with big end hydraulic cylinder pull bar; Little end clamp plate is connected in the small end hydraulic cylinder through small end hydraulic cylinder pull bar, on the said big end locating piece floating platen is arranged, and the small end pressure ring is arranged on the small end locating piece; Floating platen is connected with big end hydraulic cylinder pull bar through big end clamp plate, and the small end pressure ring is connected with small end hydraulic cylinder pull bar through little end clamp plate; Said big end alignment pin and small end alignment pin place big or small stomidium with the connecting rod location respectively, hold alignment pin and small end alignment pin to be connected in driving cylinder separately through the cylinder extension bar greatly, and said big end alignment pin is short chamfered edge pin, and the small end alignment pin is short round pin.

As a preferred version; Be used to locate the top and back side that the device that compresses connecting rod tip all is fixed on big end upper plate; Be used to locate the top and back side that the device that compresses small end all is fixed on the small end upper plate; Big end upper plate is connected with floor with the small end upper plate, and floor is connected with base plate, and base plate is fixedly connected with machine tool guideway.

As further preferred version, said big end upper plate is screwed with floor and is connected; Said small end upper plate and floor are to be fixed by the U type slotted hole that can adjust distance.

As preferred version further, between the said floating platen of pushing down connecting rod tip and the big end clamp plate, and all adopt U type structure to connect between small end floating platen and the small end pressure ring.

The advantage of the utility model is that simple in structure, it is lower to be easy to realization and cost; Because it has adopted big small end alignment pin location, jig Design is simple, accurate positioning; Easy to operate, two alignment pins are located automatically, return then to compress; Whole process all is machine tool program control, and automaticity is high, and is very suitable for the connecting rod that does not have side-locating face; Two upper plates all adopt the U-shaped slotted hole to fix, and can adjust centre-to-centre spacing to the connecting rod of different centre-to-centre spacing, hold floating platen behind the spring collar of dismantling, can change easily greatly, to satisfy the needs of production different cultivars connecting rod, highly versatile.

Description of drawings

According to embodiment and accompanying drawing the utility model is done further explain below.

Fig. 1 is the front view of the utility model embodiment;

Fig. 2 is the sectional view of Fig. 1;

Fig. 3 is the medium and small end parts cutaway view of Fig. 2;

Among the figure:

1, small end upper plate; 2, base plate; 3, floor; 4, hold upper plate greatly; 5, hydraulic cylinder; 6, hold copper sheathing greatly; 7, hydraulic cylinder pull bar; 8, big end clamp plate; 9, hydraulic cylinder hinge plate; 10, hold the hydraulic cylinder bearing greatly; 11, hold floating platen greatly; 12, hold locating piece greatly; 13, hold alignment pin greatly; 14, connecting rod; 15, cylinder; 16, cylinder connecting rod; 17, cylinder cushion block; 18, alignment pin guide pin bushing; 19, big end seat gold; 20, small end alignment pin; 21, small end pressure ring; 22, little end clamp plate.

The specific embodiment

Shown in Fig. 1 to 3, provided a specific embodiment of the utility model, among the figure,

The big aperture anchor clamps of a kind of connecting rod right boring; Connecting rod 14 is positioned under big end locating piece 12 and the small end locating piece; Big end alignment pin 13 rises connecting rod 14 location with small end alignment pin 20; Big then end floating platen 11 compresses with small end pressure ring 21, and at this moment big end alignment pin 13 is return with small end alignment pin 20, and accomplish the location.Big end locating piece 12 belongs to the locating surface location with the small end locating piece, controls 3 frees degree, and small end alignment pin 20 is short round pins, controls 2 frees degree, and holding alignment pin 13 greatly is 1 free degree of short chamfered edge pin control, and 6 frees degree can be located connecting rod fully.

Big end location comprises with pressing section: hold locating piece 12 greatly, hold alignment pin 12, cylinder 15, cylinder extension bar 16, cylinder cushion block 17, alignment pin guide pin bushing 18, big end seat golden 19 etc. greatly; Cylinder extension bar 16 is to be threaded with cylinder 15; Cylinder extension bar 16 other ends are rigidly connected with big end alignment pin 13, fix with hexagon socket head cap screw.Big end locating piece 12 and big end seat gold 19 are fixed on the big end upper plate 4, and cylinder 15 and cylinder cushion block 17 are fixed on the back side of big end upper plate 4, and alignment pin guide pin bushing 18 is used for guiding and protection cylinder extension bar 16.The rise of cylinder 15 drives cylinder extension bar 16 and rises the location with big end alignment pin 12, and return after accomplishing the location, and whole process all is machine tool program control.Big end hold down gag comprises: hydraulic cylinder 5, hydraulic cylinder pull bar 7, big end clamp plate 8, greatly hold hydraulic cylinder bearing 10, hold floating platen 11, hydraulic cylinder hinge plate 9 and supporting copper sheathing and spring collar etc. greatly; Big end floating platen 11 usefulness spring collars are fixed on an end of big end clamp plate 8, and the other end of big end clamp plate 8 is connected with hydraulic cylinder pull bar 7, and hydraulic cylinder pull bar 7 is rigidly connected with hydraulic cylinder 5 screw threads; Hydraulic cylinder 5 drives hydraulic cylinder pull bar 7 and rises; Make big end floating platen 11 compress, hydraulic cylinder 5 drives hydraulic cylinder pull bar 7 and returns, and holds floating platen 11 to lift greatly; Hydraulic cylinder pull bar 7 comes guide-localization by copper sheathing; Compressing and rising of big end floating platen 11 also is to control by machine tool program, and the two ends of hydraulic cylinder hinge plate 9 are connected with big end hydraulic cylinder bearing 10 with big end clamp plate 8 respectively, is used for firmly and locatees big end clamp plate 8.The location of small end is with to compress principle identical with big end.

Like Fig. 1, shown in 2; Be used to locate the top and back side that the device that compresses connecting rod tip all is fixed on big end upper plate 4; Be used to locate the top and back side that the device that compresses small end all is fixed on small end upper plate 1; Upper plate 1 is connected with floor 3 with upper plate 2, and floor 3 is connected with base plate 2 again, and base plate 2 is fixed with machine tool guideway again.Small end upper plate 1 is screwed with floor 3, can not move to change the position; And hold upper plate 2 and floor 3 greatly is that slotted hole is connected, and can adjust distance, is used for processing the connecting rod of different cultivars.Big end compresses why be designed to hold greatly floating platen 11 and big end clamp plate 8, and to hold floating platen 11 greatly still be U type structure, is in order to make stress equalization; Small end pressure ring 21 also is same reason with small end pressing plate 22.

The advantage of the utility model is that simple in structure, it is lower to be easy to realization and cost; Because it has adopted big small end alignment pin location, jig Design is simple, accurate positioning; Easy to operate, two alignment pins are located automatically, return then to compress; Whole process all is machine tool program control, and automaticity is high, and is very suitable for the connecting rod that does not have side-locating face; Two upper plates all adopt the U-shaped slotted hole to fix, and can adjust centre-to-centre spacing to the connecting rod of different centre-to-centre spacing, hold floating platen behind the spring collar of dismantling, can change easily greatly, to satisfy the needs of production different cultivars connecting rod, highly versatile.

Claims (4)

1. connecting rod right boring size stomidium anchor clamps; Comprise connecting rod, hydraulic cylinder and positioning element; Said positioning element comprises big end alignment pin, small end alignment pin and holds locating piece, small end locating piece greatly, and the big small end of said connecting rod is positioned over respectively under big end locating piece and the small end locating piece, and said big end locating piece is connected with big end hydraulic cylinder pull bar through big end clamp plate holds hydraulic cylinder greatly; Little end clamp plate is connected in the small end hydraulic cylinder through small end hydraulic cylinder pull bar; It is characterized in that on the said big end locating piece floating platen being arranged, the small end pressure ring is arranged on the small end locating piece; Floating platen is connected with big end hydraulic cylinder pull bar through big end clamp plate, and the small end pressure ring is connected with small end hydraulic cylinder pull bar through little end clamp plate; Said big end alignment pin and small end alignment pin place big or small stomidium with the connecting rod location respectively, hold alignment pin and small end alignment pin to be connected in driving cylinder separately through the cylinder extension bar greatly, and said big end alignment pin is short chamfered edge pin, and the small end alignment pin is short round pin.
2. a kind of connecting rod right boring size stomidium anchor clamps according to claim 1; It is characterized in that; Be used to locate the top and back side that the device that compresses connecting rod tip all is fixed on big end upper plate, be used to locate the top and back side that the device that compresses small end all is fixed on the small end upper plate, hold upper plate to be connected with floor greatly with the small end upper plate; Floor is connected with base plate, and base plate is fixedly connected with machine tool guideway.
3. a kind of connecting rod right boring size stomidium anchor clamps according to claim 2 is characterized in that said big end upper plate is screwed with floor and is connected; Said small end upper plate and floor are fixed by the U type slotted hole that can adjust distance.
4. a kind of connecting rod right boring size stomidium anchor clamps according to claim 1 is characterized in that, between the said floating platen and big end clamp plate of pushing down connecting rod tip, and all adopt U type structure to connect between small end floating platen and the small end pressure ring.
CN2011205648027U 2011-12-30 2011-12-30 Clamp for fine boring of large and small end holes of connecting rod CN202399059U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205648027U CN202399059U (en) 2011-12-30 2011-12-30 Clamp for fine boring of large and small end holes of connecting rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205648027U CN202399059U (en) 2011-12-30 2011-12-30 Clamp for fine boring of large and small end holes of connecting rod

Publications (1)

Publication Number Publication Date
CN202399059U true CN202399059U (en) 2012-08-29

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103537927A (en) * 2013-09-27 2014-01-29 江苏省徐州锻压机床厂集团有限公司 Universal fixture for slotting press machine connecting rod
CN103831650A (en) * 2014-03-03 2014-06-04 杭州钰友精密机械有限公司 Fixture for machining holes in large and small ends of automotive engine 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
CN106271771A (en) * 2016-08-30 2017-01-04 杭州九龙机械制造有限公司 A kind of hydraulically operated fixture
CN106493684A (en) * 2016-12-29 2017-03-15 重庆昌跃机电制造有限公司 A kind of torque mechanism for crankshaft-link rod production
CN107717424A (en) * 2017-09-19 2018-02-23 敏实汽车技术研发有限公司 A kind of full-automatic fastener of studs
CN107932136A (en) * 2017-11-29 2018-04-20 芜湖航天汽车连杆有限公司 Connecting rod two end while positioner
CN109514265A (en) * 2018-12-30 2019-03-26 浙江昊龙电气有限公司 A kind of process for machining

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103537927A (en) * 2013-09-27 2014-01-29 江苏省徐州锻压机床厂集团有限公司 Universal fixture for slotting press machine connecting rod
CN103831650A (en) * 2014-03-03 2014-06-04 杭州钰友精密机械有限公司 Fixture for machining holes in large and small ends of automotive engine connecting rod
CN103831650B (en) * 2014-03-03 2017-02-08 杭州钰友精密机械有限公司 Fixture for machining holes in large and small ends of automotive engine 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
CN104842199B (en) * 2015-05-26 2017-08-15 宁波市凯博数控机械有限公司 A kind of air-actuated jaw of fast clamp crankshaft-link rod
CN106271771A (en) * 2016-08-30 2017-01-04 杭州九龙机械制造有限公司 A kind of hydraulically operated fixture
CN106493684A (en) * 2016-12-29 2017-03-15 重庆昌跃机电制造有限公司 A kind of torque mechanism for crankshaft-link rod production
CN107717424A (en) * 2017-09-19 2018-02-23 敏实汽车技术研发有限公司 A kind of full-automatic fastener of studs
CN107932136A (en) * 2017-11-29 2018-04-20 芜湖航天汽车连杆有限公司 Connecting rod two end while positioner
CN109514265A (en) * 2018-12-30 2019-03-26 浙江昊龙电气有限公司 A kind of process for machining

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C14 Grant of patent or utility model
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 067000 East Chengde Industrial Park, Hebei

Patentee after: Chengde Ken Galaxy link Co., Ltd.

Address before: 067000 Chengde high tech Industrial Development Zone, Hebei

Patentee before: Chengde Suken Yinhe Connecting Rod Co.,Ltd.