CN103111884A - Automatic clamping device for milling crankshaft key groove - Google Patents

Automatic clamping device for milling crankshaft key groove Download PDF

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Publication number
CN103111884A
CN103111884A CN2013100742971A CN201310074297A CN103111884A CN 103111884 A CN103111884 A CN 103111884A CN 2013100742971 A CN2013100742971 A CN 2013100742971A CN 201310074297 A CN201310074297 A CN 201310074297A CN 103111884 A CN103111884 A CN 103111884A
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CN
China
Prior art keywords
base plate
connecting rod
support
rod neck
clamping device
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Granted
Application number
CN2013100742971A
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Chinese (zh)
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CN103111884B (en
Inventor
毕可国
于冬青
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Tianrun Crankshaft Co Ltd
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Tianrun Crankshaft Co Ltd
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Priority to CN201310074297.1A priority Critical patent/CN103111884B/en
Publication of CN103111884A publication Critical patent/CN103111884A/en
Application granted granted Critical
Publication of CN103111884B publication Critical patent/CN103111884B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to an automatic clamping device for milling a crankshaft key groove. A base of the automatic clamping device for milling the crankshaft key groove is provided with a right pressing base plate, a left pressing base plate and pre-support base plate. The right pressing base plate and the left pressing base plate are respectively provided with a turn angle air cylinder and a support V-shaped block, and the upper end of each turn angle air cylinder is correspondingly connected with a right pressing arm and a left pressing arm. The left pressing base plate is further provided with a connecting rod neck limit block, and a connecting rod neck pressing block support arm is fixed on the left pressing arm. A connecting rod neck pressing block is installed on the connecting rod neck pressing block support arm. A pre-support air cylinder is installed on the pre-support base plate, and is provided with a pre-support V-shaped block. The automatic clamping device for milling the crankshaft key groove is simple in structure and convenient to use, supporting and locating can be adjusted according to the length of a crankshaft to be processed, locating and pressing are reliable, and the damage of a crankshaft journal can be effectively avoided, and the automatic clamping device for milling the crankshaft key groove is ideal.

Description

Mill the crankshaft key slot automatic clamping device
Technical field
The present invention relates to a kind of fraise jig of mechanical field, specifically a kind of crankshaft key slot automatic clamping device that mills.
Background technology
During the machining crankshafts keyway, normally the trunnion with bent axle is supported on the V-block on milling machine, and turning crankshaft leans against on the locating dowel connecting rod neck of bent axle, then compresses bent axle.Commonly used mill the crankshaft key slot clamping device and have following two kinds: a kind of is that V-block and locating piece directly are fixed on the workbench of milling machine, compress with bolt and pressing plate, the weak point of this compression mode is: compress that length consuming time, operator's labour intensity are large, the big or small bad control of thrust, the location of crank-shaft link neck on locating dowel is unreliable.Another structure is that V-block and locating piece are fixed on the clamp body, compress with bolt and pressing plate, perhaps use cylinder or hydraulic cylinder automatic impaction, this compression mode also has weak point: V-block is relative fixing with the position that locating piece is fixed on the clamp body, the bent axle that can only adapt to a kind of length, the processing versatility is poor, also has the insecure problem in the location of crank-shaft link neck on locating dowel simultaneously.In addition because in, Large Crankshaft is heavier, so on the V-block that bent axle directly is put into rigidity the time, more than two kinds of structures axle journal of damaging easily.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, easy to use, support, locate and to adjust according to the length of required machining crankshafts, and the location, compress reliable, the crankshaft journal of avoiding damaging mill the crankshaft key slot automatic clamping device.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of crankshaft key slot automatic clamping device that mills, it is characterized in that: it is provided with base, right compression base plate, left compression base plate are installed on the base and are positioned at middle pre-support base plate, described right compression base plate, left compression base plate and support in advance base plate and be fixed on the T-shaped groove of base by hold-down screw and T-shaped groove nut, be separately installed with a swing clamp cylinder and on right compression base plate, the left compression base plate and support V-block, the swing clamp cylinder upper end correspondingly is connected with right clamping arm, left clamping arm; On the described left compression base plate connecting rod neck limited block is installed also, is fixed with connecting rod neck compact heap support arm on the left clamping arm; On the described connecting rod neck compact heap support arm connecting rod neck compact heap is installed; On the described pre-support base plate pre-support cylinder is installed, the pre-support V-block of being made by elastomeric material is installed at this cylinder.
Base of the present invention is provided with a groove, described right compression base plate, the left compression base plate platy structure that is rectangle, and the length of right compression base plate and left compression base plate is identical with the width of this groove, and right compression base plate, left compression base plate are installed in this groove.
Also be provided with three vertical T-shaped grooves in the groove of base of the present invention.
Right clamping arm of the present invention, the left clamping arm structure that is rectangle has a square hole at the one end, is fixed on the swing clamp cylinder by hold-down nut.
The rectangular shape of connecting rod neck compact heap support arm of the present invention has a circular hole on one of them limit, the connecting rod neck compact heap is installed in the circular hole, and there is slot the side on another limit, is fixed on left clamping arm by hold-down screw and slot.Be fixed on the connecting rod neck compact heap support arm on the left clamping arm, can adjust front and back position at left clamping arm, make the connecting rod neck compact heap aim at crank-shaft link neck.
Connecting rod neck compact heap of the present invention is the multidiameter shape, and its top is provided with screw thread, and intermediate sleeve has spring, and the circular hole on the connecting rod neck compact heap support arm is passed on top, is fixed by hold-down nut and split pin, and middle spring is in the pre-pressing state.Be fixed on the connecting rod neck compact heap on the connecting rod neck compact heap support arm, can slide up and down by the flexible of spring.
Pre-support cylinder of the present invention is arranged in the base lower space.
During clamping bent axle of the present invention, at first bent axle is lifted on the pre-support V-block of being made by elastomeric material, then in pre-support cylinder, passes into compressed air, support under the cylinder drive pre-, bent axle slowly moves down until main bearing journal drops on the support V-block in company with the pre-V-block that supports.Pass into compressed air to swing clamp cylinder, right clamping arm, left clamping arm and be fixed on connecting rod neck compact heap support arm on the left clamping arm, connecting rod neck compact heap etc. and move downward.In the process of motion, the connecting rod neck compact heap at first touches the connecting rod neck of bent axle, and promotes the center rotating of connecting rod neck flexing axle, until the below of connecting rod neck touches the connecting rod neck limited block, and bent axle and the stop motion of connecting rod neck compact heap, bent axle is finished the location.Finish in the process of location at bent axle, right clamping arm, left clamping arm and connecting rod neck compact heap support arm continue to move downward, and the spring that is sleeved on the connecting rod neck compact heap is compressed, until right clamping arm, left clamping arm compress till the trunnion that is supported on the V-block.Against existing technologies, the present invention is simple in structure, and is easy to use, support, locate and to adjust according to the length of required machining crankshafts, and the location, compressing reliably, can effectively avoid the crankshaft journal of damaging, is a kind of desirable crankshaft key slot automatic clamping device that mills.
Description of drawings
Fig. 1 is the front view that the present invention forms structure.
Fig. 2 is top view of the present invention.
Fig. 3 is the right side view of main bearing journal after compacted among Fig. 1.
Fig. 4 is the B-B cutaway view of crank-shaft link neck after compacted among Fig. 1.
Fig. 5 is that workpiece of the present invention is placed on the pre-support V-block, the lateral plan that not yet compresses.
Fig. 6 is that workpiece is placed on the pre-support V-block among Fig. 1, the A-A cutaway view when not yet falling.
Fig. 7 is the zoomed-in view of I section among Fig. 4.
Label among the figure is: 1. base, 2. right compression base plate, 3. swing clamp cylinder, 4. right clamping arm, 5. hold-down nut, 6. pre-support base plate, 7. pre-support cylinder, 8. pre-support V-block, 9. spring, 10. hold-down nut, 11. split pins, 12. connecting rod neck compact heaps, 13. connecting rod neck compact heap support arms, 14. connecting rod neck limited blocks, 15. left clamping arms, 16. left compression base plates, 17. hold-down screws, 18. support V-blocks, 19.T type groove nut, 20. bent axles.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is explained in detail and illustrates.
From Fig. 1, Fig. 2, can find out, a kind of crankshaft key slot automatic clamping device that mills, it is provided with base 1, right compression base plate 2, left compression base plate 16 is installed on the base and is positioned at two middle pre-base plates 6 that support.
Base 1 of the present invention is provided with a groove, described right compression base plate 2, left compression base plate 16 platy structure that is rectangle, the width of the groove on the length of right compression base plate 2 and left compression base plate 16 and the base 1 is identical, and right compression base plate 2, left compression base plate 16 are installed in this groove.Be provided with three vertical T-shaped grooves in the groove of described base.Described right compression base plate 2, left compression base plate 16 are fixed on the T-shaped groove of base, such as Fig. 2, shown in Figure 4 by hold-down screw 17 and T-shaped groove nut 19 respectively.Unclamp hold-down screw 17, right compression base plate 2, left compression base plate 16 can move along T-shaped groove in the groove of base 1, to adapt to the Crankshaft Machining of different length.
Be separately installed with a swing clamp cylinder 3 and on right compression base plate 2 of the present invention, the left compression base plate 16 and support V-block 18.Left and right support V-block 18 is positioned at the below of bent axle 20 trunnions, is used for supporting bent axle.Swing clamp cylinder 3 upper ends correspondingly are connected with right clamping arm 4, left clamping arm 15.Described right clamping arm 4, left clamping arm 15 structure that is rectangle has a square hole at the one end, is fixed on the swing clamp cylinder 3 by hold-down nut 5.
On the left compression base plate 16 of the present invention connecting rod neck limited block 14 is installed also, connecting rod neck limited block 14 is positioned at the below of bent axle 20 connecting rod necks, is used for limiting the rotational angle that is supported on the bent axle on the support V-block 18.
Be fixed with connecting rod neck compact heap support arm 13 on the left clamping arm 15 of the present invention; On the described connecting rod neck compact heap support arm 13 a connecting rod neck compact heap 12 is installed.Described connecting rod neck compact heap support arm 13 rectangular shapes have a circular hole on one of them limit, connecting rod neck compact heap 12 is installed in the circular hole, and there is slot the side on another limit, are fixed on left clamping arm 15 by hold-down screw 17 and slot.Be fixed on the connecting rod neck compact heap support arm 13 on the left clamping arm 15, can adjust front and back position at left clamping arm 15, make connecting rod neck compact heap 12 aim at bent axle 20 connecting rod necks.
Connecting rod neck compact heap 12 of the present invention is the multidiameter shape, its top is provided with screw thread, namely the end at a thinner end has screw thread, intermediate sleeve has spring 9, the circular hole on the connecting rod neck compact heap support arm 13 is passed on top, fixing by hold-down nut 10 and split pin 11, middle spring 9 is in the pre-pressing state.Be fixed on the connecting rod neck compact heap 12 on the connecting rod neck compact heap support arm 13, can slide up and down by the flexible of spring 9, compress the rod journal of bent axle.。Such as Fig. 4, shown in Figure 7.
Pre-support base plate 6 of the present invention is fixed on the T-shaped groove of base, such as Fig. 2, shown in Figure 6 by hold-down screw 17 and T-shaped groove nut 19.Described pre-support base plate 6 platy structure that also is rectangle is equipped with pre-support cylinder 7 at the pre-base plate 6 that supports, and is equipped with by the damage pre-support V-block 8 of crankshaft journal of can preventing of making of elastomeric material at this cylinder.Described pre-support cylinder 7 is arranged in base 1 lower space.As shown in Figure 6.Unclamp hold-down screw 17, support in advance base plate 6 and can in the groove of base 1, move along T-shaped groove, to adapt to the Crankshaft Machining of different length.
The course of work of the present invention is: be in unclamped state before this clamping device clamping bent axle, right clamping arm 4, left clamping arm 15 and connecting rod neck compact heap 12 upwards lift and turn to the side, as shown in Figure 5 under the effect of swing clamp cylinder 3.Pre-support V-block 8 upwards lifts and is higher than under pre-support cylinder 7 effects and supports V-block 18.During the clamping bent axle, at first bent axle 20 is lifted on the pre-support V-block 8 of being made by elastomeric material, then in pre-support cylinder 7, pass into compressed air, bent axle is in company with the pre-V-block 8 that supports, support under cylinder 7 drives pre-, slowly move down until main bearing journal drops on the support V-block 18, as shown in Figure 6.In pre-support cylinder 7, passing into the compressed-air actuated while, pass into compressed air to swing clamp cylinder 3, right clamping arm 4, left clamping arm 15 and be fixed on connecting rod neck compact heap support arm 13 on the left clamping arm 15, connecting rod neck compact heap 12 etc. and move downward.In the process of motion, connecting rod neck compact heap 12 at first touches the connecting rod neck of bent axle, and promotes the center rotating of connecting rod neck flexing axle, until the below of connecting rod neck touches connecting rod neck limited block 14, bent axle and 12 stop motions of connecting rod neck compact heap, bent axle is finished the location, as shown in Figure 3, Figure 4.Finish in the process of location at bent axle, right clamping arm 4, left clamping arm 15 and connecting rod neck compact heap support arm 13 continue to move downward, the spring 9 that is sleeved on the connecting rod neck compact heap 12 is compressed, until right clamping arm 4, left clamping arm 15 compresses till the trunnion that is supported on the V-block 18, as shown in Figure 3, Figure 4.

Claims (7)

1. one kind is milled the crankshaft key slot automatic clamping device, it is characterized in that: it is provided with base, right compression base plate, left compression base plate are installed on the base and are positioned at middle pre-support base plate, described right compression base plate, left compression base plate and support in advance base plate and be fixed on the T-shaped groove of base by hold-down screw and T-shaped groove nut, be separately installed with a swing clamp cylinder and on right compression base plate, the left compression base plate and support V-block, the swing clamp cylinder upper end correspondingly is connected with right clamping arm, left clamping arm; On the described left compression base plate connecting rod neck limited block is installed also, is fixed with connecting rod neck compact heap support arm on the left clamping arm; On the described connecting rod neck compact heap support arm connecting rod neck compact heap is installed; On the described pre-support base plate pre-support cylinder is installed, the pre-support V-block of being made by elastomeric material is installed at this cylinder.
2. the crankshaft key slot automatic clamping device that mills according to claim 1, it is characterized in that: described base is provided with a groove, described right compression base plate, the left compression base plate platy structure that is rectangle, the length of right compression base plate and left compression base plate is identical with the width of this groove, and right compression base plate, left compression base plate are installed in this groove.
3. the crankshaft key slot automatic clamping device that mills according to claim 2 is characterized in that: also be provided with three vertical T-shaped grooves in the groove of described base.
4. the crankshaft key slot automatic clamping device that mills according to claim 1 is characterized in that: described right clamping arm and the left clamping arm structure that is rectangle, at the one end one square hole is arranged, and be fixed on the swing clamp cylinder by hold-down nut.
5. the crankshaft key slot automatic clamping device that mills according to claim 1, it is characterized in that: the rectangular shape of described connecting rod neck compact heap support arm, one circular hole is arranged on one of them limit, the connecting rod neck compact heap is installed in the circular hole, there is slot the side on another limit, is fixed on left clamping arm by hold-down screw and slot.
6. the crankshaft key slot automatic clamping device that mills according to claim 1, it is characterized in that: described connecting rod neck compact heap is the multidiameter shape, its top is provided with screw thread, intermediate sleeve has spring, the circular hole on the connecting rod neck compact heap support arm is passed on top, fixed by hold-down nut and split pin, middle spring is in the pre-pressing state.
7. the crankshaft key slot automatic clamping device that mills according to claim 1, it is characterized in that: described pre-support cylinder is arranged in the base lower space.
CN201310074297.1A 2013-03-08 2013-03-08 Automatic clamping device for milling crankshaft key groove Expired - Fee Related CN103111884B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310074297.1A CN103111884B (en) 2013-03-08 2013-03-08 Automatic clamping device for milling crankshaft key groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310074297.1A CN103111884B (en) 2013-03-08 2013-03-08 Automatic clamping device for milling crankshaft key groove

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CN103111884A true CN103111884A (en) 2013-05-22
CN103111884B CN103111884B (en) 2015-05-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104259899A (en) * 2014-09-25 2015-01-07 中国科学院光电技术研究所 Clamping device for elastic material radial milling
CN104476312A (en) * 2014-12-08 2015-04-01 重庆市银钢一通科技有限公司 Anti-crushing device
CN108214035A (en) * 2018-01-03 2018-06-29 燕山大学 Axial direction positioning device of the hydraulic expanding-forming axle housing ladder pipe fitting on bidirectional boring machine
CN113478258A (en) * 2021-07-20 2021-10-08 吴星 Reciprocating type workpiece fixing and overturning device for combined machining

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763177A1 (en) * 1994-06-03 1997-03-19 Otmar Fahrion Holder for workpieces with a non-ideal rigidity
CN201552453U (en) * 2009-12-15 2010-08-18 孝感市鄂职九洲数控机床有限责任公司 General fixture for crankshaft drilling and milling
CN201685112U (en) * 2010-05-11 2010-12-29 林素伟 Drilling fixture for crankshaft straight oil holes
CN101966662A (en) * 2010-07-30 2011-02-09 天润曲轴股份有限公司 Polyhedron-milling dividing device
CN202219409U (en) * 2011-09-08 2012-05-16 杭州杭机数控机床有限公司 Flexible and fast clamp device
CN202701827U (en) * 2012-06-29 2013-01-30 重庆歇马机械曲轴有限公司 Crankshaft key slot milling clamp
CN203109644U (en) * 2013-03-08 2013-08-07 天润曲轴股份有限公司 Automatic clamping device for milling crankshaft key groove

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763177A1 (en) * 1994-06-03 1997-03-19 Otmar Fahrion Holder for workpieces with a non-ideal rigidity
CN201552453U (en) * 2009-12-15 2010-08-18 孝感市鄂职九洲数控机床有限责任公司 General fixture for crankshaft drilling and milling
CN201685112U (en) * 2010-05-11 2010-12-29 林素伟 Drilling fixture for crankshaft straight oil holes
CN101966662A (en) * 2010-07-30 2011-02-09 天润曲轴股份有限公司 Polyhedron-milling dividing device
CN202219409U (en) * 2011-09-08 2012-05-16 杭州杭机数控机床有限公司 Flexible and fast clamp device
CN202701827U (en) * 2012-06-29 2013-01-30 重庆歇马机械曲轴有限公司 Crankshaft key slot milling clamp
CN203109644U (en) * 2013-03-08 2013-08-07 天润曲轴股份有限公司 Automatic clamping device for milling crankshaft key groove

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104259899A (en) * 2014-09-25 2015-01-07 中国科学院光电技术研究所 Clamping device for elastic material radial milling
CN104476312A (en) * 2014-12-08 2015-04-01 重庆市银钢一通科技有限公司 Anti-crushing device
CN108214035A (en) * 2018-01-03 2018-06-29 燕山大学 Axial direction positioning device of the hydraulic expanding-forming axle housing ladder pipe fitting on bidirectional boring machine
CN108214035B (en) * 2018-01-03 2019-11-05 燕山大学 Axial direction positioning device of the hydraulic expanding-forming axle housing ladder pipe fitting on bidirectional boring machine
CN113478258A (en) * 2021-07-20 2021-10-08 吴星 Reciprocating type workpiece fixing and overturning device for combined machining

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