CN110842617A - Connecting rod profile of tooth adds clamping apparatus - Google Patents

Connecting rod profile of tooth adds clamping apparatus Download PDF

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Publication number
CN110842617A
CN110842617A CN201911206863.3A CN201911206863A CN110842617A CN 110842617 A CN110842617 A CN 110842617A CN 201911206863 A CN201911206863 A CN 201911206863A CN 110842617 A CN110842617 A CN 110842617A
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CN
China
Prior art keywords
hydraulic
connecting rod
rod
clamping mechanism
fixed
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Pending
Application number
CN201911206863.3A
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Chinese (zh)
Inventor
黄青松
李林泰
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Supporting Co Ltd Of Ship Power In Anqing
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Supporting Co Ltd Of Ship Power In Anqing
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Application filed by Supporting Co Ltd Of Ship Power In Anqing filed Critical Supporting Co Ltd Of Ship Power In Anqing
Priority to CN201911206863.3A priority Critical patent/CN110842617A/en
Publication of CN110842617A publication Critical patent/CN110842617A/en
Pending legal-status Critical Current

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    • 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
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention discloses a connecting rod tooth profile machining clamp which comprises a support, a first hydraulic clamping mechanism and a second hydraulic clamping mechanism, wherein the first hydraulic clamping mechanism is arranged on two sides of the support and used for clamping a connecting rod body, the second hydraulic clamping mechanism is used for clamping a connecting rod cover, the first hydraulic clamping mechanism comprises a positioning pin, a jacking mechanism, a first limiting block, a first hydraulic pressing unit and a hydraulic tensioning mandrel, and the second hydraulic clamping mechanism comprises a hydraulic positioning pin, a supporting seat, a second limiting block and a second hydraulic pressing unit. The hydraulic clamping mechanism has the advantages that the first hydraulic clamping mechanism and the second hydraulic clamping mechanism are arranged on the two sides of the support, so that the tooth profile processing of the connecting rod body and the connecting rod cover is realized on the same support, the meshing requirement of the tooth profile structures on the connecting rod body and the connecting rod cover and the matching requirement between the connecting rod body and the connecting rod cover can be met, the clamping efficiency is improved through the hydraulic clamping mechanism, and the manufacturing cost is reduced.

Description

Connecting rod profile of tooth adds clamping apparatus
Technical Field
The invention relates to the technical field of mechanical tool fixtures, in particular to a connecting rod tooth profile machining fixture.
Background
The connecting rod is one of the most important transmission parts in the diesel engine and is a component for connecting the piston and the crankshaft to move. The connecting rod generally comprises a connecting rod body and a connecting rod cover, and is formed by locking and fixing the connecting rod body and the connecting rod cover through tooth-shaped meshing and then using a connecting rod bolt, and the tooth-shaped surface contact area of the connecting rod of the high-power medium-speed diesel engine after tooth-shaped meshing must reach 80 percent, so the requirement on the processing precision of the tooth shape of the connecting rod is very high, and the requirement on positioning and clamping when the tooth shape is processed on the connecting rod body and the connecting. Because the connecting rod body and the connecting rod cover both belong to special-shaped structures, the problem of difficult positioning and clamping exists when the tooth-shaped structure is processed. The existing positioning and clamping is generally manually and manually clamped, the connecting rod is heavy, manual operation is inconvenient, clamping efficiency is low, manufacturing cost is improved, and the tooth shapes of the connecting rod body and the connecting rod cover are positioned and processed on different positioning clamps, so that the meshing requirements of tooth shapes of the connecting rod body and the connecting rod cover and the matching requirements between the connecting rod body and the connecting rod cover are difficult to meet.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the connecting rod tooth profile machining clamp is high in clamping efficiency and low in manufacturing cost, and solves the problems that an existing connecting rod tooth profile machining clamp is low in clamping efficiency and high in manufacturing cost.
In order to solve the technical problems, the invention provides the following technical scheme:
a connecting rod tooth profile machining clamp comprises a support, a first hydraulic clamping mechanism and a second hydraulic clamping mechanism, wherein the first hydraulic clamping mechanism and the second hydraulic clamping mechanism are arranged on two sides of the support and used for clamping a connecting rod body;
the first hydraulic clamping mechanism comprises a positioning pin, a jacking mechanism, a first limiting block, a first hydraulic pressing unit and a hydraulic tensioning mandrel, the positioning pin is fixed on one side of a support, the jacking mechanism is arranged on the support at the lower end of the positioning pin, at least two first limiting blocks are uniformly distributed on the support between the positioning pin and the jacking mechanism, the first hydraulic pressing units are arranged on the supports on the two sides of the first limiting block, and the hydraulic tensioning mandrel for clamping and fixing the small-end hole of the connecting rod body is arranged on the support;
the second hydraulic clamping mechanism comprises a hydraulic positioning pin, a supporting seat, a second limiting block and a second hydraulic pressing unit, the hydraulic positioning pin is fixed on the support far away from one side of the first hydraulic clamping mechanism, the supporting seat for supporting the connecting rod cover is arranged on the support at the lower end of the hydraulic positioning pin, two second limiting blocks are uniformly distributed on the support between the hydraulic positioning pin and the supporting seat, and the second hydraulic pressing units are arranged on the supports at two sides of the second limiting block.
Preferably, the bracket comprises a bottom plate and a fixing plate, the fixing plate is vertically fixed on the bottom plate, and the first hydraulic clamping mechanism and the second hydraulic clamping mechanism are respectively fixed on two sides of the fixing plate.
Preferably, the first hydraulic pressing unit and the second hydraulic pressing unit both comprise hydraulic cylinders, swing arms and pressing rods, the hydraulic cylinders are fixed on two sides of the fixing plate, the output ends of the hydraulic cylinders are connected with the swing arms, the pressing rods are fixed at the ends, far away from the output ends of the hydraulic air rods, of the swing arms, and the pressing ends of the pressing rods are arranged towards the fixing plate.
Preferably, the hydraulic tensioning mandrel comprises a mandrel body, a first end cover, a second end cover, a push rod, an adjusting rod and a tensioning rod, wherein a through hole is formed in the mandrel body along the central line, the first end cover and the second end cover are fixed at two ends of the through hole of the mandrel body, the mandrel body is fixed on a fixing plate through the second end cover, the push rod and the adjusting rod are sequentially arranged in the through hole between the first end cover and the second end cover, the tensioning rods matched with the adjusting rod are uniformly distributed on the mandrel body along the radial direction of the mandrel body, a first oil cavity and a second oil cavity which are communicated with each other are respectively arranged on the mandrel body and the first end cover, the push rod is pushed by hydraulic oil pressure in the oil cavities, and the adjusting rod is driven to push the tensioning rod to extend along the radial direction of the mandrel body to realize;
the adjusting rod comprises a conical section and a cylindrical section, the conical section is arranged close to one side of the push rod and matched with the tension rod to drive the tension rod to extend along the radial direction of the mandrel body, and the cylindrical section is arranged close to one side of the second end cover.
Preferably, a first groove is formed in one end, close to the inner side of the through hole, of the first end cover, the second oil cavity is communicated with the bottom end of the first groove, one end of the push rod is movably arranged in the first groove, and the other end of the push rod tightly abuts against the adjusting rod; one side of the second end cover, which is close to the cylindrical section of the adjusting rod, is provided with a second groove, and one end, which is far away from the conical section, of the cylindrical section of the adjusting rod is movably arranged in the second groove.
Preferably, a first return spring is further sleeved on the cylindrical section of the adjusting rod, a first step is arranged between the conical section and the cylindrical section of the adjusting rod, one end of the first return spring is fixed on the end face of the first step, and the other end of the first return spring is fixed on the end face of the second end cover on the side of the second groove.
Preferably, the tensioning rod is fixed on the mandrel body through a locking nut, one end of the tensioning rod is an inclined plane capable of being matched with the tapered section of the adjusting rod, and the other end of the tensioning rod extends out of the locking nut to achieve tensioning and positioning.
Preferably, a step hole is formed in the center of the locking nut, the tension rod is arranged in the step hole, a second step is arranged at the position, close to the large aperture of the step hole, of the tension rod, and a second reset spring is further sleeved on the tension rod between the second step and the step end face of the step hole.
Preferably, a first guide seat for supporting one end of the connecting rod body is further fixed on the fixing plate below the positioning pin, a guide strip is further arranged on the guide seat, and a second guide seat for supporting the other end of the connecting rod body is further fixed on the bottom plate below the hydraulic tensioning mandrel.
Preferably, a rotatable flow guide mechanism is arranged on the fixed plate through a reinforcing rib arranged between the fixed plate and the bottom plate; the water conservancy diversion mechanism is including rotating movable support, guide plate, locking bolt and limiting plate, rotating movable support's passing through rotating bolt symmetry is fixed on two strengthening ribs, two rotating movable support is equipped with the guide plate between with the end, the one end of keeping away from the guide plate at the rotating movable support of one side be equipped with can with strengthening rib complex locking bolt to be equipped with the restriction rotating movable support pivoted limiting plate in the strengthening rib side that is equipped with locking bolt one side.
Compared with the prior art, the invention has the beneficial effects that:
1. the first hydraulic clamping mechanism and the second hydraulic clamping mechanism are arranged on the two sides of the support, so that the connecting rod body and the connecting rod cover are clamped on the same support to perform tooth profile machining, the meshing requirement of the tooth profile structures on the connecting rod body and the connecting rod cover and the matching requirement between the connecting rod body and the connecting rod cover can be met, the clamping efficiency is improved through the hydraulic clamping mechanisms, and the manufacturing cost is reduced.
2. The push rod is pushed by feeding oil into the oil cavity, so that the adjusting rod is driven to push the tension rod to extend along the radial direction of the mandrel body to realize quick tension positioning, positioning precision is guaranteed, a positioning gap is prevented, the distance of the tension rod extending out of the mandrel body can be used for positioning connecting rod bodies of different models, and the adaptability is high.
3. Through the arrangement of the first return spring and the second return spring, the adjusting rod is automatically reset when the first oil cavity and the second oil cavity return oil, so that the tension rod returns to the original position, and the connecting rod body can be loosened.
4. Through the arrangement of the flow guide mechanism, the cooling liquid can directly flow to the cutting surface through the flow guide mechanism during tooth profile machining, the cooling effect during cutting is improved, the cooling liquid can be splashed onto the cutting tool through the flow guide mechanism and flows to the cutting surface from the cutting tool, the cutting surface and scrap iron on the cutting tool can be timely washed away, and the tooth profile machining precision is improved.
Drawings
Fig. 1 is a schematic structural view of a connecting rod tooth profile machining fixture according to a first embodiment of the present invention;
FIG. 2 is a front view of a linkage body after positioning according to an embodiment of the present invention;
FIG. 3 is another schematic structural diagram according to a first embodiment of the present invention;
FIG. 4 is a front view of a link cover in place in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural view of a hydraulic tensioning mandrel according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a hydraulic tensioning mandrel according to an embodiment of the present invention;
FIG. 7 is an enlarged view of A in FIG. 6;
FIG. 8 is a schematic structural diagram according to a second embodiment of the present invention;
fig. 9 is a schematic view of the flow of the cooling liquid over the baffle according to the second embodiment of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless explicitly stated or limited otherwise, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and 4, the embodiment discloses a connecting rod tooth profile machining clamp, which includes a bracket 1, a first hydraulic clamping mechanism 2 and a second hydraulic clamping mechanism 3, wherein the first hydraulic clamping mechanism 2 and the second hydraulic clamping mechanism are arranged on two sides of the bracket 1 and are used for clamping a connecting rod body 4, and the second hydraulic clamping mechanism 3 is used for clamping a connecting rod cover 5; be equipped with first hydraulic clamping mechanism 2 and second hydraulic clamping mechanism 3 through 1 both sides of support, realize that the clamping connecting rod body 4 carries out the profile of tooth processing with connecting rod cap 5 on same support 1, not only can satisfy the meshing requirement of the last tooth structure of connecting rod body 4 and connecting rod cap 5 and the cooperation requirement between connecting rod body 4 and the connecting rod cap 5, but also improve clamping efficiency through hydraulic clamping mechanism, reduced manufacturing cost.
The support 1 comprises a bottom plate 11, a fixing plate 12 and reinforcing ribs 13, wherein the fixing plate 12 is vertically fixed on the bottom plate 11, the first hydraulic clamping mechanism 2 and the second hydraulic clamping mechanism 3 are respectively fixed on two sides of the fixing plate 11, and a plurality of reinforcing ribs 13 are arranged between the fixing plate 11 and the bottom plate 12 and on the fixing plate 12.
The first hydraulic clamping mechanism 2 comprises a positioning pin 21, a jacking mechanism 22, first limiting blocks 23, a first hydraulic pressing unit 24 and a hydraulic tensioning mandrel 25, the positioning pin 21 is fixed on one side of a fixing plate 12, the jacking mechanism 22 is arranged on the fixing plate 12 at the lower end of the positioning pin 21, at least two first limiting blocks 23 are uniformly distributed on the fixing plate 12 between the positioning pin 21 and the jacking mechanism 22, in this embodiment, three first limiting blocks 23 are uniformly distributed, and one sides of the first limiting blocks 23 far away from the fixing plate 12 are all located on the same plane; the fixed plates 12 on the two sides of the first limiting block 23 are respectively provided with a first hydraulic pressing unit 24, and the fixed plates 12 are respectively provided with a hydraulic tensioning mandrel 25 for clamping and fixing the small-end hole of the connecting rod body 4; referring to fig. 2, the inner wall of the large-end hole of the connecting rod body 4 is positioned by the positioning pin 21, then the outer wall of the large-end hole of the connecting rod body 4 is tightly pushed by the pushing mechanism 22, so that the large-end hole of the connecting rod body 4 is positioned up and down, the inner wall of the small-end hole of the connecting rod body 4 is positioned by the hydraulic tensioning mandrel 25, so that the small-end hole of the connecting rod body 4 is positioned and clamped, finally, the outer side of the connecting rod body is pushed tightly by the first hydraulic pressing unit 24, the omnibearing positioning and clamping of the connecting rod body are realized, the clamping efficiency is high, and the manufacturing cost is low.
The jacking mechanism 22 is a jacking cylinder, the jacking cylinder is fixed on the reinforcing rib 13 on the fixed plate 12 through a first fixing piece (not marked in the figure), and the output end of the jacking cylinder is arranged towards the direction of the positioning pin 21.
Specifically, referring to fig. 5 to 6, the hydraulic tension mandrel 25 includes a mandrel body 251, a first end cap 252, a second end cap 253, a push rod 254, an adjusting rod 255, and a tension rod 256, the mandrel body 251 is provided with a through hole (not labeled in the figures) along a central line, the first end cap 252 and the second end cap 253 are fixed at two ends of the through hole of the mandrel body 251, the push rod 254 and the adjusting rod 255 are sequentially disposed in the through hole between the first end cap 252 and the second end cap 253, the tension rods 256 matched with the adjusting rod 255 are further uniformly distributed on the mandrel body 251 along a radial direction thereof, in this embodiment, three tension rods 256 are uniformly distributed, a first oil chamber 2511 and a second oil chamber 2521 are respectively disposed on the mandrel body 251 and the first end cap 252, the push rod 254 is pushed by an oil inlet, so as to drive the adjusting rod 255 to push the tension rod 256 to extend along the radial direction of the mandrel body 251 to realize rapid positioning, not only guaranteed positioning accuracy, prevented that the positioning gap from appearing, can also adapt to the location of the connecting rod body 4 of different models according to the distance that the tight pole 256 extends dabber body 251, the suitability is stronger.
Further, the input end of the first oil chamber 2511 is connected with an oil control valve (labeled in the figure), oil inlet and outlet of the first oil chamber 2511 and the second oil chamber 2521 are realized through the oil control valve, and the size of oil pressure is conveniently controlled, so that the distance of the tension rod 256 extending out of the mandrel body 251 is conveniently controlled to adapt to positioning of connecting rod bodies 4 of different models.
The adjusting rod 255 comprises a tapered section 2551 and a cylindrical section 2552, the tapered section 2551 is disposed near one side of the pushing rod 254, and cooperates with the tension rod 256 to drive the tension rod 256 to extend along the radial direction of the mandrel body 251, the cylindrical section 2552 is disposed near one side of the second end cap 253,
the first end cover 252 is provided with a first groove 2522 at one end close to the inner side of the through hole, the second oil chamber 2521 is communicated with the bottom end of the first groove 2522, one end of the push rod 254 is movably arranged in the first groove 2522, the other end of the push rod 254 abuts against the tapered section 2551 of the adjusting rod 255, the push rod 254 in the first groove 2522 is pushed by oil entering from the second oil chamber 2521, and therefore the adjusting rod 255 is driven to push the tension rod 256 to extend along the radial direction of the mandrel body 251 to realize tension positioning.
One side of the second end cover 253, which is close to the cylindrical section 2552 of the adjusting rod 255, is provided with a second groove 2531, one end of the cylindrical section 2552 of the adjusting rod 255, which is far away from the conical section 2551, is movably arranged in the second groove 2531, and the conical section 2552 can move in the second groove 2531, so that the conical section 2552 moves to drive the tensioning rod 256 to move to realize tensioning and positioning; still the cover is equipped with first reset spring 257 on the cylinder section 2552 of adjusting pole 255, be equipped with first step (not marking in the figure) between the toper section 2551 of adjusting pole 255 and the cylinder section 2552, first reset spring 257 one end is fixed on the terminal surface of first step, and the other end is fixed on the terminal surface of second end cover 253 of second recess 2531 side to guarantee that first reset spring 257 is in compression state all the time, make and adjust pole 255 and realize automatic re-setting when first oil pocket 2511 and second oil pocket 2521 return oil, thereby make the return of tension rod 256, can realize the unclamping to the connecting rod body 4 microcephaly hole.
Further, a plurality of third oil chambers 2553 which are communicated with each other are further arranged in the adjusting rod 255, so that pressure inside the through hole of the mandrel body 251 is balanced, and hydraulic failure caused by pressure imbalance is prevented from affecting tensioning positioning of the tensioning rod 256.
Referring to fig. 7, the tension rod 256 is fixed on the mandrel body 251 through a locking nut 258, an end surface of one end of the tension rod 256 is an inclined surface capable of being matched with the tapered section 2551 of the adjustment rod 255, and the other end of the tension rod extends out of the locking nut 258 to realize tension positioning.
The lock nut 258 center is equipped with step hole 2581, the tight pole 256 that rises sets up in step hole 2581, the tight pole 256 that rises is close to large aperture department of step hole 2581 is equipped with second step 2561, still overlap on the tight pole 256 between the step terminal surface of second step 2561 and step hole 2581 and be equipped with second reset spring 259 to guarantee that second reset spring 259 is in compression state all the time, guarantee that adjust pole 255 also can realize automatic re-setting in real time when reseing, realize the loosening to the connecting rod body.
Furthermore, one end of the locking nut 258, which is close to the inclined surface of the tension rod 256, is provided with a sliding groove 2582 extending in the radial direction of the mandrel body 251, the tension rod 256 is provided with a guide pin 2562 capable of sliding on the sliding groove 2582, and through the cooperation between the guide pin 2562 and the sliding groove 2582, the sliding limitation on the tension rod 256 is realized, and the rotation of the tension rod 256 is prevented from affecting the positioning accuracy.
Further, sealing rings (not shown) for preventing oil leakage are disposed at the joints of the first end cap 252, the second end cap 253, the locking nut 258 and the mandrel body 251, and similarly, O-ring seals (not shown) for preventing oil leakage are disposed at the joints of the locking nut 258 and the tension rod 256 and at the joints where the first oil chamber 2511 and the second oil chamber 2521 communicate with each other.
Still further, still be fixed with the first guide holder 26 that supports connecting rod body 4 one end on the strengthening rib 13 on the fixed plate 12 of locating pin 21 below, still establish gib block 27 on the guide holder 26, still be fixed with the second guide holder 28 that supports the connecting rod body 4 other end on the bottom plate 11 of hydraulic pressure tight dabber 25 below, through the setting of first guide holder 26 and gib block 27 cooperation and second guide holder 28 for supplementary material loading is carried out to the thick location of connecting rod body 4, and pushes up connecting rod body 4 to fixed plate 12 side from the gib block, makes things convenient for the location clamping of later stage connecting rod body 4, improves clamping efficiency.
Referring to fig. 3 to 4, the second hydraulic clamping mechanism 3 includes a hydraulic positioning pin 31, a supporting seat 32, a second limiting block 33 and a second hydraulic pressing unit 34, the hydraulic positioning pin 31 is fixed on the fixing plate 12 far away from one side of the first hydraulic clamping mechanism 2, the reinforcing rib 13 on the fixing plate 12 at the lower end of the hydraulic positioning pin 31 is provided with the supporting seat 32 for supporting the connecting rod cover 5, at least two second limiting blocks 33 are uniformly distributed on the fixing plate 12 between the hydraulic positioning pin 31 and the supporting seat 32, in this embodiment, three second limiting blocks 33 are uniformly distributed, and one sides of the second limiting blocks 33 far away from the fixing plate 12 are all located on the same plane; the fixing plates 12 on two sides of the second limiting block 33 are both provided with a second hydraulic pressing unit 34; the connecting rod cover 5 is placed on the supporting seat 32 and pushed to the hydraulic positioning pin 31, the inner wall of the large-end hole of the connecting rod cover 3 is positioned through the hydraulic positioning pin 31, the upper and lower positioning of the connecting rod cover 5 is realized, the outer side of the connecting rod cover 5 is tightly pushed through the second hydraulic pressing unit 34, the omnibearing positioning and clamping of the connecting rod cover 5 are realized, and the clamping efficiency is high, and the manufacturing cost is low.
The first hydraulic pressing unit 24 and the second hydraulic pressing unit 34 each include a hydraulic cylinder 241, a swing arm 242, and a pressing rod 243, the hydraulic cylinder 241 is fixed on both sides of the fixing plate 12, an output end of the hydraulic cylinder 241 is connected to the swing arm 242, the swing arm 242 can rotate around the output end of the hydraulic cylinder 241, a pressing rod 243 is vertically fixed on one end of the swing arm 242 away from the output end of the hydraulic cylinder 241, and the pressing end of the pressing rod 243 is arranged toward the fixing plate 12 for pressing the connecting rod body 4 and the connecting rod cover 5.
The working principle of the embodiment is as follows: firstly, the connecting rod body 4 is placed on the first guide seat 26 and the second guide seat 28 and used for auxiliary feeding of coarse positioning of the connecting rod body 4, the connecting rod body 4 is pushed to the fixing plate 12 side from the guide seats, the inner wall of a big end hole of the connecting rod body 4 is positioned through the positioning pin 21, then the outer wall of the big end hole of the connecting rod body 4 is tightly jacked through the jacking mechanism 22, up and down positioning of the big end hole of the connecting rod body 4 is achieved, oil is fed into the first oil cavity 2511 and the second oil cavity 2521 through the oil control valve to push the push rod 254 to move to one side of the adjusting rod 255 in the first groove 2522, the adjusting rod 255 is driven to move to one side of the second end cover 253, and the tapered section 2551 of the adjusting rod 255 is matched with the tension rod 256, so that the tension rod 256 is driven to extend along the radial direction of the mandrel body 251 to achieve tension positioning of the inner wall of the small end hole of the; finally, the swing arm 242 connected with the output end of the hydraulic cylinder 241 extends out, the output end of the hydraulic cylinder 241 is used as a rotating shaft to rotate to the outer side of the connecting rod body 4, and the compression rod 243 is driven to compress the side face of the connecting rod body 4 through contraction of the hydraulic cylinder 241, so that omnibearing positioning and clamping of the connecting rod body are achieved, clamping efficiency is high, and manufacturing cost is low.
Secondly place connecting rod lid 5 on supporting seat 32 again, and push to hydraulic pressure locating pin 31 department, fix a position the big head hole inner wall of connecting rod lid 3 through hydraulic pressure locating pin 31, realized the upper and lower location of connecting rod lid 5, rethread second hydraulic pressure compresses tightly unit 34 and carries out the top tight to the connecting rod lid 5 outside, realize the all-round location clamping of connecting rod lid 5, just so realize on same support 1 clamping connecting rod body 4 and connecting rod lid 5 carry out the profile of tooth processing, not only can satisfy the meshing requirement of the last tooth profile structure of connecting rod body 4 and connecting rod lid 5 and the cooperation requirement between connecting rod body 4 and the connecting rod lid 5, and still improve clamping efficiency through hydraulic pressure clamping mechanism, reduced manufacturing cost.
After the tooth profile of the connecting rod body 4 is processed, the swing arm 242 connected with the output end of the hydraulic cylinder 241 is controlled to extend out, the output end of the hydraulic cylinder 241 is taken as a rotating shaft to rotate to one end far away from the connecting rod body 4, the jacking mechanism 22 is controlled to contract, the oil control valve returns oil to the first oil cavity 2511 and the second oil cavity 2521, the oil pressure in the oil cavities is reduced, the adjusting rod 255 moves towards one side of the push rod 254 under the action of the first reset spring 257, a gap is formed between the conical section 2552 of the adjusting rod 255 and the end face matched with the tension rod 256, at the moment, the tension rod 256 contracts towards the radial direction of the mandrel body 251 under the action of the second reset spring 259, the connecting rod body 4 is loosened, and the processed connecting rod body 4 can be taken out.
After the tooth profile of the connecting rod cap 5 is processed, the swing arm 242 connected with the output end of the hydraulic cylinder 241 is controlled to extend out, the output end of the hydraulic cylinder 241 is taken as a rotating shaft to rotate to one end far away from the connecting rod cap 5, the hydraulic positioning pin 31 is controlled to contract, and the processed connecting rod cap 5 can be taken out.
Example two
Referring to fig. 8 and 9, in this embodiment, on the basis of the first embodiment, the guide mechanism 6 capable of rotating is disposed on the reinforcing rib 13 between the two sides of the fixing plate 12 and the bottom plate 11, since the coolant 7 sprayed during the tooth profile machining is point-to-point, and the tooth profile machining on the connecting rod body 4 and the connecting rod cover 5 is a plane, so that the sprayed coolant 7 cannot completely cover the cutting surface, which affects the cooling and tooth profile machining effects, and through the arrangement of the guide mechanism 6, the coolant can directly flow onto the cutting surface from the guide mechanism 6 during the tooth profile machining, so as to improve the cooling effect during the cutting, and the coolant can be sputtered onto the cutting tool 8 by the guide mechanism 6 and flow onto the cutting surface from the cutting tool 8, so as to timely flush away the cutting surface and iron chips on the cutting tool, and improve the accuracy of the tooth profile machining.
The flow guide mechanism 6 comprises rotary supports 61, flow guide plates 62, locking bolts 63 and limiting plates 64, the rotary supports 61 are symmetrically fixed on two reinforcing ribs 13 through rotary bolts 145, the flow guide plates 62 are arranged between the same ends of the rotary supports 61, the end, away from the flow guide plates 62, of the rotary support 61 on one side is provided with the locking bolts 63 capable of being matched with the reinforcing ribs 13, the side surface, away from the reinforcing ribs 13, of the rotary support 61 on one side provided with the locking bolts 63 is provided with the limiting plates 64 for limiting the rotary support 61 to rotate, concretely, when the rotary support 61 rotates to a vertical state, the upper surface of the flow guide plates 62 is flush with the cutting surfaces of the connecting rod body 4 and the connecting rod cover 5, the cooling liquid on the flow guide plates 62 can completely flow onto the cutting surfaces, the rotary support 61 on one side away from the flow guide plates 62 is limited through the limiting plates 64, and the flow guide effect, and the bracket 61 after rotating is fixed on the reinforcing rib 13 through the locking bolt 63, referring to fig. 9, then the cooling liquid 7 is sprayed on the guide plate 62 and directly flows onto the cutting surface, so that the cooling effect during cutting is improved, the cooling liquid 7 can be sputtered onto the cutting tool 8 through the guide plate 62 and flows onto the cutting surface from the cutting tool 8, the cutting surface and scrap iron on the cutting tool 8 can be washed away in time, and the tooth profile processing precision is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above-mentioned embodiments only represent embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the concept of the present invention, and these embodiments are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a connecting rod profile of tooth adds clamping apparatus which characterized in that: the hydraulic clamping device comprises a support, a first hydraulic clamping mechanism and a second hydraulic clamping mechanism, wherein the first hydraulic clamping mechanism and the second hydraulic clamping mechanism are arranged on two sides of the support and are used for clamping a connecting rod body;
the first hydraulic clamping mechanism comprises a positioning pin, a jacking mechanism, a first limiting block, a first hydraulic pressing unit and a hydraulic tensioning mandrel, the positioning pin is fixed on one side of a support, the jacking mechanism is arranged on the support at the lower end of the positioning pin, at least two first limiting blocks are uniformly distributed on the support between the positioning pin and the jacking mechanism, the first hydraulic pressing units are arranged on the supports on the two sides of the first limiting block, and the hydraulic tensioning mandrel for clamping and fixing the small-end hole of the connecting rod body is arranged on the support;
the second hydraulic clamping mechanism comprises a hydraulic positioning pin, a supporting seat, a second limiting block and a second hydraulic pressing unit, the hydraulic positioning pin is fixed on the support far away from one side of the first hydraulic clamping mechanism, the supporting seat for supporting the connecting rod cover is arranged on the support at the lower end of the hydraulic positioning pin, two second limiting blocks are uniformly distributed on the support between the hydraulic positioning pin and the supporting seat, and the second hydraulic pressing units are arranged on the supports at two sides of the second limiting block.
2. The connecting rod tooth form machining jig as set forth in claim 1, wherein: the support comprises a bottom plate and a fixing plate, the fixing plate is vertically fixed on the bottom plate, and the first hydraulic clamping mechanism and the second hydraulic clamping mechanism are respectively fixed on two sides of the fixing plate.
3. The connecting rod tooth profile machining jig according to claim 2, characterized in that: the first hydraulic pressing unit and the second hydraulic pressing unit respectively comprise a hydraulic cylinder, a swing arm and a pressing rod, the hydraulic cylinders are fixed on two sides of the fixing plate, the swing arm is connected with the output end of the hydraulic cylinder, the pressing rod is fixed at one end, far away from the output end of the hydraulic air rod, of the swing arm, and the pressing end of the pressing rod is arranged towards the fixing plate.
4. The connecting rod tooth profile machining jig according to claim 2, characterized in that: the hydraulic tensioning mandrel comprises a mandrel body, a first end cover, a second end cover, a push rod, an adjusting rod and a tensioning rod, wherein a through hole is formed in the mandrel body along the central line, the first end cover and the second end cover are fixed at two ends of the through hole of the mandrel body, the mandrel body is fixed on a fixing plate through the second end cover, the push rod and the adjusting rod are sequentially arranged in the through hole between the first end cover and the second end cover, the tensioning rods matched with the adjusting rod are uniformly distributed on the mandrel body along the radial direction of the mandrel body, a first oil cavity and a second oil cavity which are communicated with each other are respectively arranged on the mandrel body and the first end cover, and the push rod is pushed by hydraulic oil pressure in the oil cavities, so that the adjusting rod is driven to push the tensioning rod to extend along the radial direction of the mandrel;
the adjusting rod comprises a conical section and a cylindrical section, the conical section is arranged close to one side of the push rod and matched with the tension rod to drive the tension rod to extend along the radial direction of the mandrel body, and the cylindrical section is arranged close to one side of the second end cover.
5. The connecting rod tooth form machining jig as set forth in claim 4, wherein: a first groove is formed in one end, close to the inner side of the through hole, of the first end cover, the second oil cavity is communicated with the bottom end of the first groove, one end of the push rod is movably arranged in the first groove, and the other end of the push rod tightly abuts against the adjusting rod; one side of the second end cover, which is close to the cylindrical section of the adjusting rod, is provided with a second groove, and one end, which is far away from the conical section, of the cylindrical section of the adjusting rod is movably arranged in the second groove.
6. The connecting rod tooth profile machining jig according to claim 5, characterized in that: the adjusting rod is characterized in that a first return spring is further sleeved on the cylindrical section of the adjusting rod, a first step is arranged between the conical section and the cylindrical section of the adjusting rod, one end of the first return spring is fixed on the end face of the first step, and the other end of the first return spring is fixed on the end face of the second end cover on the side of the second groove.
7. The connecting rod tooth form machining jig as set forth in claim 4, wherein: the tensioning rod is fixed on the mandrel body through a locking nut, one end of the tensioning rod is an inclined plane capable of being matched with the tapered section of the adjusting rod, and the other end of the tensioning rod extends out of the locking nut to achieve tensioning and positioning.
8. The connecting rod tooth form machining jig as set forth in claim 7, wherein: the center of the locking nut is provided with a step hole, the tension rod is arranged in the step hole, a second step is arranged at the position, close to the large aperture of the step hole, of the tension rod, and a second reset spring is further sleeved on the tension rod between the second step and the end face of the step hole.
9. The connecting rod tooth profile machining jig according to claim 2, characterized in that: the fixed plate below the positioning pin is also fixedly provided with a first guide seat for supporting one end of the connecting rod body, the guide seat is also provided with a guide strip, and the bottom plate below the hydraulic tensioning mandrel is also fixedly provided with a second guide seat for supporting the other end of the connecting rod body.
10. The connecting rod tooth profile machining jig according to claim 2, characterized in that: a rotatable flow guide mechanism is arranged on the fixed plate through a reinforcing rib arranged between the fixed plate and the bottom plate; the water conservancy diversion mechanism is including rotating movable support, guide plate, locking bolt and limiting plate, rotating movable support's passing through rotating bolt symmetry is fixed on two strengthening ribs, two rotating movable support is equipped with the guide plate between with the end, the one end of keeping away from the guide plate at the rotating movable support of one side be equipped with can with strengthening rib complex locking bolt to be equipped with the restriction rotating movable support pivoted limiting plate in the strengthening rib side that is equipped with locking bolt one side.
CN201911206863.3A 2019-11-29 2019-11-29 Connecting rod profile of tooth adds clamping apparatus Pending CN110842617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911206863.3A CN110842617A (en) 2019-11-29 2019-11-29 Connecting rod profile of tooth adds clamping apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911206863.3A CN110842617A (en) 2019-11-29 2019-11-29 Connecting rod profile of tooth adds clamping apparatus

Publications (1)

Publication Number Publication Date
CN110842617A true CN110842617A (en) 2020-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911206863.3A Pending CN110842617A (en) 2019-11-29 2019-11-29 Connecting rod profile of tooth adds clamping apparatus

Country Status (1)

Country Link
CN (1) CN110842617A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112361936A (en) * 2020-09-29 2021-02-12 安庆中船动力配套有限公司 Crankshaft coaxiality detection and adjustment device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112361936A (en) * 2020-09-29 2021-02-12 安庆中船动力配套有限公司 Crankshaft coaxiality detection and adjustment device

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