CN201552451U - Automatic positioning clamp for connecting rod machining - Google Patents

Automatic positioning clamp for connecting rod machining Download PDF

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Publication number
CN201552451U
CN201552451U CN2009202093908U CN200920209390U CN201552451U CN 201552451 U CN201552451 U CN 201552451U CN 2009202093908 U CN2009202093908 U CN 2009202093908U CN 200920209390 U CN200920209390 U CN 200920209390U CN 201552451 U CN201552451 U CN 201552451U
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CN
China
Prior art keywords
rod
machining
automatic
clamping
auxiliary mesa
Prior art date
Application number
CN2009202093908U
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Chinese (zh)
Inventor
李小旺
王通宝
刘军
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上海中船三井造船柴油机有限公司
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Application filed by 上海中船三井造船柴油机有限公司 filed Critical 上海中船三井造船柴油机有限公司
Priority to CN2009202093908U priority Critical patent/CN201552451U/en
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Publication of CN201552451U publication Critical patent/CN201552451U/en

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Abstract

The utility model discloses an automatic positioning clamp for connecting rod machining, which is placed on a machine tool worktable, and comprises an auxiliary tabletop, two automatic centering supporting frames and a clamping fixing component. The auxiliary tabletop is a platform component and is fixed on the machine tool worktable, the two automatic centering supporting frames are fixed on the auxiliary tabletop and provided with V-shaped blocks capable of floating up and down, the V-shaped blocks can limit freedom degrees of a machining connecting rod moving transversely and rotating in a horizontal plane, and the clamping fixing component is disposed on two end portions of the auxiliary tabletop and used for clamping and fixing the machining connecting rod. The clamp has the function of automatically centering, is capable of simultaneously and automatically limiting two movement freedom degrees of connecting rod workpieces moving transversely along the auxiliary tabletop and rotating in a horizontal plane, and achieves the effect of automatically positioning the connecting rod workpieces, thereby greatly reducing workpiece adjusting time, decreasing auxiliary time for preparing before processing, improving processing efficiency and degree of production automation and particularly being adaptable to mass production of connecting rods.

Description

The automatic positioning fixture of Machining of Connecting Rod

Technical field:

The utility model relates to the machine tooling anchor clamps, relates in particular to a kind of automatic positioning fixture that is used for the marine diesel Machining of Connecting Rod.

Background technology:

The clamping of workpiece location is a more common problem in the machined, also is simultaneously a problem that must in addition specifically solve at the different processing request of workpiece, because the suitable different frock clamp of different workpiece.A main advantages of high-grade numerical control machining center is exactly to have powerful, widely applicable universal fixturing system, and workpiece can accurately be located and firm clamping thereon, and can also be according to the different angle of processing needs conversion.Yet numerical control machining center is expensive, and its processing cost is quite expensive, thereby on the standard machinery machining tool, the clamping location of generally all adopting the special fixture of lower cost to solve workpiece.

Connecting rod is a moving component important on the marine diesel, and gonnecting rod body is the chief component of connecting rod, and gonnecting rod body was made of semiorbicular large and small of being of shaft and two ends thereof.The processing of gonnecting rod body on lathe comprises that the faying face and the boring of outer face, gonnecting rod body and the connecting rod cap of the flat horizontal surface that cuts the shaft both sides, concentric reducer both sides go out tie rod holes.

The gonnecting rod body of marine diesel is the very large heavy parts of volume, carry out as follows clamping location before the processing at present: at first its blank is winched to platen, be positioned on the contour cushion block of the standard that is placed in advance on the workbench, operating personnel carry out the school accent, proofread and correct then, carry out tool setting again the coordinate zero-bit is set, it is fastening so that machining to carry out cramping at last.As above from the gonnecting rod body lathe, proofread and correct and adjust to the overall process that zero-bit is set, because it is basic not to the location measure of connecting rod workpiece on table plane, so the position that each workpiece is put all is uncertain, need many time of cost to carry out again the tool setting centering and zero-bit is set, process preceding time thereby increased greatly, this has not only reduced production efficiency, be unfavorable for producing in enormous quantities, and when having taken a large amount of lathe workers, increased processing cost.

The utility model content:

Technical problem to be solved in the utility model is to overcome the existing inefficient deficiency of Machining of Connecting Rod clamping locate mode, provide a kind of Machining of Connecting Rod automatic positioning fixture, it has the automatic capturing function, can realize the connecting rod Automatic positioning of Workpiece, thereby reach the technique effect that improves workpiece positioning and clamping efficient.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

The automatic positioning fixture of a kind of Machining of Connecting Rod, be placed on the platen, it includes tall auxiliary mesa, two automatic capturing bracing frames and clamping parts, described tall auxiliary mesa is a platform member, it is fixed on the platen, described two automatic capturing bracing frames are fixed on the tall auxiliary mesa, it has the V-block that can fluctuate, this V-block can limit the free degree that laterally moves and rotate of institute's processing gonnecting rod body in horizontal plane, described clamping parts are arranged at the both ends of tall auxiliary mesa with gonnecting rod body that clamping is processed.

The automatic capturing bracing frame of the automatic positioning fixture of Machining of Connecting Rod described in the utility model comprises V-block, back shaft, elastic component and supporting seat; Described supporting seat is fixed on the described tall auxiliary mesa, and its central authorities are provided with an axial vertical hole, the described supporting seat of this upright opening up/down perforation, and a bottom is jammed in the lower end of this upright opening; Described elastic component is placed in this upright opening, and it is a cylindrical spring; Described back shaft inserts in this upright opening and is positioned on the elastic component, and it can fluctuate in upright opening; Described V-block pin is fixed on this back shaft, two V-shaped part corresponding align on the V-block of described two automatic capturing bracing frames and along vertical formation of tall auxiliary mesa locating surface to institute's processing gonnecting rod body; The both ends of described tall auxiliary mesa are provided with some T type grooves, and described clamping parts comprise clamping bar and cushion block, and the lower end of this clamping bar embeds in the T type groove of tall auxiliary mesa.

Compare with existing Machining of Connecting Rod clamping locate mode, the automatic positioning fixture of Machining of Connecting Rod described in the utility model utilizes V-block cylindrical cross section to be had the principle of automatic positioning action, on two automatic capturing bracing frames, be provided with V-block, thereby when gonnecting rod body is held in this V-block, can realize the automatic capturing that gonnecting rod body is horizontal, improved the efficient of workpiece positioning and clamping greatly, this two automatic capturings bracing frame not only defines the free degree that the gonnecting rod body workpiece laterally moves along tall auxiliary mesa automatically, and defines the free degree that the gonnecting rod body workpiece rotates in horizontal plane simultaneously automatically.Therefore, use the utility model that gonnecting rod body is processed, realized quick location to the gonnecting rod body workpiece, guarantee that workpiece goes up lathe each time and can both be seated on definite position, operating personnel needn't be at every turn all again the school transfer, proofread and correct and be provided with the coordinate zero-bit, thereby to the gonnecting rod body of same model a workpiece coordinate zero-bit only need be set and get final product, improved the efficient of producing in batches greatly.Therefore, the automatic positioning fixture of Machining of Connecting Rod described in the utility model has the automatic capturing function, can reach the connecting rod workpiece effect of location automatically, thereby improve the automaticity of working (machining) efficiency and production greatly, is specially adapted to the production in enormous quantities of gonnecting rod body.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the vertical view of Fig. 1.

Fig. 4 is the structural representation of automatic capturing bracing frame.

The schematic diagram that Fig. 5 is to use the utility model that gonnecting rod body is processed.

Fig. 6 is the schematic diagram that gonnecting rod body is located on the automatic capturing bracing frame.

The specific embodiment:

Now the utility model is described in further detail in conjunction with the accompanying drawings and embodiments.

See also Fig. 1, Fig. 2 and Fig. 3 structural representation of the present utility model, the automatic positioning fixture of diagram Machining of Connecting Rod is placed on the platen 1, and in order to the processing gonnecting rod body, it includes tall auxiliary mesa 2, two automatic capturing bracing frames 3 and clamping parts 4.

Described tall auxiliary mesa 2 is a platform member, and its both ends are provided with some T type grooves, this tall auxiliary mesa 2 by pin location and with bolted on platen 1, the own position of its position and platen 1 is corresponding.Described tall auxiliary mesa 2 should guarantee to be fixed in securely on the platen 1, guarantees that again mesa shape is indeformable.

Each ground of described two automatic capturing bracing frames about 3 be fixed in tall auxiliary mesa 2 vertically on, it has the V-block that can fluctuate, this V-block can be positioned at institute's processing gonnecting rod body the vertical of tall auxiliary mesa 2 along its length, both defined the free degree that laterally moves of institute's processing gonnecting rod body, defined the free degree that institute's processing gonnecting rod body rotates again in horizontal plane.See also the structural representation of Fig. 4 automatic capturing bracing frame 3, diagram automatic capturing bracing frame 3 includes V-block 31, back shaft 33, elastic component 34, supporting seat 35 and bottom 36.Described supporting seat 35 is by the pin location and rely on screw to be anchored on the described tall auxiliary mesa 2, and its central authorities are provided with an axial vertical hole, the described supporting seat 5 of this upright opening up/down perforation, and described bottom 36 is jammed in the lower end of this upright opening, makes it to become a blind hole.Described elastic component 34 is a cylindrical spring, and it is placed in this upright opening.Described back shaft 33 inserts in this upright opening and is positioned on the elastic component 34, and it can fluctuate in upright opening by means of elastic component 34.Described V-block 31 has V-shaped part upwards, it is fixed on the described back shaft 33 by alignment pin 32 pins, thereby it can float with the elastic force of back shaft 33 by means of elastic component 34, so the support locating surface of automatic capturing bracing frame 3 has the function that fluctuates.Described two automatic capturing bracing frames 3 are the (see figure 3)s along vertical installation of tall auxiliary mesa 2, and installation will be guaranteed two V-shaped part corresponding align on its V-block 31, thereby along vertical formation of tall auxiliary mesa 2 locating surface to institute's processing gonnecting rod body.

See also Fig. 1 and Fig. 3 again, described clamping parts 4 are arranged at the both ends of tall auxiliary mesa 2, and it is in order to gonnecting rod body that clamping is processed.Described clamping parts 4 comprise some clamping bars and cushion block (not shown), the lower end of this clamping bar embeds in the T type groove at tall auxiliary mesa 2 both ends, it is in order to large and small two of gonnecting rod body that clamping is processed, and this cushion block positions it in order to the weight of support institute processing gonnecting rod body and at vertical direction.Clamping parts 4 fibrous roots are regulated its position according to the different length of institute's processing gonnecting rod body, add the vibrations in man-hour with control, guarantee the quality of processing.

The use operating process of the automatic positioning fixture of Machining of Connecting Rod described in the utility model is summarized as follows.

See also the schematic diagram that Fig. 5 gonnecting rod body is processed, after the automatic positioning fixture of described Machining of Connecting Rod installs on platen 1, the processing gonnecting rod body L of institute is slowly transferred among two V-shaped parts of V-block 31 to the two automatic capturing bracing frames 3, owing to be subjected to the self-centering action of two V-shaped parts, the length direction of the processing gonnecting rod body L of institute is positioned in vertical (see figure 5) of tall auxiliary mesa 2, be that gonnecting rod body L has been defined the free degree that laterally moves (X-direction among the figure) along tall auxiliary mesa 2, also be defined simultaneously the free degree of rotation in horizontal plane (Y-axis rotation in figure), this automatic positioning function has improved the clamping efficient of anchor clamps greatly.See also Fig. 6 again, slowly transferring in the process of gonnecting rod body L, V-block 31 is subjected to the gravity of gonnecting rod body L and downward compression elastic piece 34, and gonnecting rod body L descends thereupon and is subjected to the support of the cushion block of clamping parts 4 up to its concentric reducer two ends, thereby gonnecting rod body L also reaches the location on vertical short transverse.The function that fluctuates of this automatic capturing bracing frame 3 makes it to change in the certain limit of vertical direction, promptly can move up and down, this mistake of having avoided itself and clamping parts 4 may cause gonnecting rod body L jointly retrains and causes force-bearing situation bad, and then causes distortion or the surface damage of gonnecting rod body L.In gonnecting rod body L is placed in the V-block 31 of two automatic capturing bracing frames 3 and after the concentric reducer two ends are supported on the cushion block fully, the automatic location on tall auxiliary mesa 2 has also just been realized in the position of gonnecting rod body L, can use the clamping bar of clamping parts 4 that gonnecting rod body L is clamped so that process at last.

The use of the automatic positioning fixture of Machining of Connecting Rod described in the utility model has greatly improved the working (machining) efficiency of gonnecting rod body L.Our way in the past is to put the corresponding standard cushion block on platen 1, and gonnecting rod body L is placed on the cushion block after going up lathe, and it is fastening to carry out school accent, correction, pressure then.Owing in platen 1 plane, do not have location measure at all, so the position that different gonnecting rod body L puts all is uncertain at every turn, must the operator tool setting and zero-bit is set again once more.According to machining period statistical computation in the past, the school is transferred, is proofreaied and correct and reset the required time of workpiece zero-bit, and the every gonnecting rod body L that on average gets off was at least about need 40 minutes.And adopt after the automatic positioning fixture of Machining of Connecting Rod described in the utility model, since 3 volitional checks of automatic capturing bracing frame the free degree of both direction, therefore only need be on machine tool feed direction (being the Z-direction among Fig. 5) again tool setting get final product, so just saved for about 3/4 time, that is to say that the processing of every gonnecting rod body L can be saved about 30 minutes.

Three component parts of the present utility model can be removed the independent collocation of coming and use.

In sum, the automatic positioning fixture of Machining of Connecting Rod described in the utility model has the automatic capturing function, can limit two freedoms of motion of gonnecting rod body workpiece simultaneously automatically, reach the connecting rod workpiece effect of location automatically, thereby significantly reduced the non-cutting time of preparing before the processing, improve the automaticity of working (machining) efficiency and production, be specially adapted to the production in enormous quantities of gonnecting rod body.

Claims (5)

1. automatic positioning fixture of Machining of Connecting Rod, be placed on the platen, it is characterized in that: described automatic positioning fixture includes tall auxiliary mesa, two automatic capturing bracing frames and clamping parts, described tall auxiliary mesa is a platform member, it is fixed on the platen, described two automatic capturing bracing frames are fixed on the tall auxiliary mesa, it has the V-block that can fluctuate, this V-block can limit the free degree that laterally moves and rotate of institute's processing gonnecting rod body in horizontal plane, described clamping parts are arranged at the both ends of tall auxiliary mesa with gonnecting rod body that clamping is processed.
2. the automatic positioning fixture of Machining of Connecting Rod according to claim 1, it is characterized in that: described automatic capturing bracing frame comprises V-block, back shaft, elastic component and supporting seat, described supporting seat is fixed on the described tall auxiliary mesa, its central authorities are provided with an axial vertical hole, described elastic component is placed in this upright opening, described back shaft inserts in this upright opening and is positioned on the elastic component, it can fluctuate in upright opening, described V-block pin is fixed on this back shaft, two V-shaped part corresponding align on the V-block of described two automatic capturing bracing frames and along vertical formation of tall auxiliary mesa locating surface to institute's processing gonnecting rod body.
3. the automatic positioning fixture of Machining of Connecting Rod according to claim 2 is characterized in that: described elastic component is a cylindrical spring.
4. the automatic positioning fixture of Machining of Connecting Rod according to claim 2 is characterized in that: the described supporting seat of described upright opening up/down perforation, a bottom is jammed in the lower end of this upright opening.
5. the automatic positioning fixture of Machining of Connecting Rod according to claim 1 and 2 is characterized in that: the both ends of described tall auxiliary mesa are provided with some T type grooves, and described clamping parts comprise clamping bar and cushion block, and the lower end of this clamping bar embeds in the T type groove of tall auxiliary mesa.
CN2009202093908U 2009-09-08 2009-09-08 Automatic positioning clamp for connecting rod machining CN201552451U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202093908U CN201552451U (en) 2009-09-08 2009-09-08 Automatic positioning clamp for connecting rod machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202093908U CN201552451U (en) 2009-09-08 2009-09-08 Automatic positioning clamp for connecting rod machining

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CN201552451U true CN201552451U (en) 2010-08-18

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101992399A (en) * 2010-11-22 2011-03-30 杭州九龙机械制造有限公司 Fixture for milling two planes of automobile connecting rod cap
CN102848237A (en) * 2011-06-30 2013-01-02 上海工程技术大学 Fixture for car engine balance shaft
CN103170897A (en) * 2013-04-16 2013-06-26 芜湖欧宝机电有限公司 Piston-type refrigerating compressor connecting rod dual-hole honing fixture
CN103358152A (en) * 2013-07-03 2013-10-23 芜湖航天汽车连杆有限公司 Clamp for processing milling fall surface of connecting rod cap of engine and clamping method of clamp
CN104385255A (en) * 2014-11-20 2015-03-04 柳州市颖航汽配有限公司 Rear axle transfer maintenance device
CN104511758A (en) * 2014-11-28 2015-04-15 苏州卓诚钛设备有限公司 Workpiece clamp
CN104511759A (en) * 2014-11-28 2015-04-15 苏州卓诚钛设备有限公司 Auxiliary fixation clamp
CN104526376A (en) * 2014-11-28 2015-04-22 苏州卓诚钛设备有限公司 Work-piece fixing device
CN105014438A (en) * 2015-08-19 2015-11-04 安徽合力股份有限公司 Fixture with elastic clamping mechanism
CN105441657A (en) * 2015-12-11 2016-03-30 安徽精科机器有限公司 High-frequency inner sphere quenching device and application method thereof
CN106378645A (en) * 2016-10-19 2017-02-08 上海中船三井造船柴油机有限公司 Location and rotation device for machining for large connection rods and other workpieces
CN107442875A (en) * 2017-10-11 2017-12-08 广东工业大学 A kind of simple clamped device of con-rod fracture splitting groove processing
CN109129186A (en) * 2018-10-24 2019-01-04 武汉理工大学 A kind of positioning fixture and clamping method for annular titanium alloy casting

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101992399B (en) * 2010-11-22 2013-03-27 杭州九龙机械制造有限公司 Fixture for milling two planes of automobile connecting rod cap
CN101992399A (en) * 2010-11-22 2011-03-30 杭州九龙机械制造有限公司 Fixture for milling two planes of automobile connecting rod cap
CN102848237A (en) * 2011-06-30 2013-01-02 上海工程技术大学 Fixture for car engine balance shaft
CN103170897B (en) * 2013-04-16 2015-08-19 芜湖欧宝机电有限公司 A kind of Piston Refrigerant Compreessor connecting rod diplopore honing fixture
CN103170897A (en) * 2013-04-16 2013-06-26 芜湖欧宝机电有限公司 Piston-type refrigerating compressor connecting rod dual-hole honing fixture
CN103358152A (en) * 2013-07-03 2013-10-23 芜湖航天汽车连杆有限公司 Clamp for processing milling fall surface of connecting rod cap of engine and clamping method of clamp
CN104385255A (en) * 2014-11-20 2015-03-04 柳州市颖航汽配有限公司 Rear axle transfer maintenance device
CN104511758A (en) * 2014-11-28 2015-04-15 苏州卓诚钛设备有限公司 Workpiece clamp
CN104511759A (en) * 2014-11-28 2015-04-15 苏州卓诚钛设备有限公司 Auxiliary fixation clamp
CN104526376A (en) * 2014-11-28 2015-04-22 苏州卓诚钛设备有限公司 Work-piece fixing device
CN105014438A (en) * 2015-08-19 2015-11-04 安徽合力股份有限公司 Fixture with elastic clamping mechanism
CN105441657A (en) * 2015-12-11 2016-03-30 安徽精科机器有限公司 High-frequency inner sphere quenching device and application method thereof
CN106378645A (en) * 2016-10-19 2017-02-08 上海中船三井造船柴油机有限公司 Location and rotation device for machining for large connection rods and other workpieces
CN106378645B (en) * 2016-10-19 2018-06-01 上海中船三井造船柴油机有限公司 Large link rod class work pieces process positions and rotating device
CN107442875A (en) * 2017-10-11 2017-12-08 广东工业大学 A kind of simple clamped device of con-rod fracture splitting groove processing
CN109129186A (en) * 2018-10-24 2019-01-04 武汉理工大学 A kind of positioning fixture and clamping method for annular titanium alloy casting
CN109129186B (en) * 2018-10-24 2020-06-09 武汉理工大学 Positioning fixture and clamping method for titanium alloy annular casting

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Granted publication date: 20100818

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