CN217551246U - Clamp for machining oblique oil hole of crankshaft - Google Patents

Abstract

The application discloses anchor clamps are used in processing of oblique oilhole of bent axle, the on-line screen storage device comprises a base, elevating system, the sloping platform, clamping device and jig subassembly, elevating system articulates on the base, sloping platform one end articulates on the base, the sloping platform other end articulates in the elevating system top, clamping device sets up on the sloping platform, clamping device is used for the centre gripping bent axle, so that bent axle axial lead is parallel with the sloping platform incline direction, the jig subassembly sets up on the sloping platform, the jig subassembly is used for installing the cutter, in order to process out oblique oilhole on the bent axle, this application has can adjust oblique oilhole processing contained angle, the different processing technology requirements of adaptable oblique oilhole, wide advantage of application scope.

Description

Clamp for machining crankshaft inclined oil hole

Technical Field

The application relates to the technical field of clamps, especially, relate to an anchor clamps are used in processing of oblique oilhole of bent axle.

Background

As shown in fig. 1, the shape of the crankshaft workpiece is a special-shaped piece, which is composed of a plurality of concentric spindle sections and a plurality of concentric connecting rod journals, wherein the spindle journals and the connecting rod journals are not concentric, and when the crankshaft is drilled with an oblique oil hole, the central line of the oblique oil hole, the central line of each spindle section and the central line of each connecting rod journal should form an oblique angle.

In oblique oilhole course of working, need fix the bent axle with anchor clamps, then carry out drilling processing again, and according to the processing technology requirement, the central line of oblique oilhole and the contained angle size requirement of main shaft central line probably differ, and present anchor clamps simple structure is not convenient for adjust oblique oilhole processing contained angle, and application scope is little.

SUMMERY OF THE UTILITY MODEL

The main aim at of this application provides an anchor clamps are used in oblique oilhole processing of bent axle, aims at solving current anchor clamps for bent axle processing and is not convenient for adjust the little technical problem of application scope to oblique oilhole processing contained angle.

In order to achieve the purpose, the application provides a clamp for machining a crankshaft inclined oil hole, and the clamp comprises a base, a lifting mechanism, an inclined platform, a clamping device and a drill jig assembly, wherein the lifting mechanism is hinged to the base, one end of the inclined platform is hinged to the base, the other end of the inclined platform is hinged to the top of the lifting mechanism, the clamping device is arranged on the inclined platform, the clamping device is used for clamping a crankshaft, so that the axis line of the crankshaft is parallel to the inclined direction of the inclined platform, and the drill jig assembly is used for installing a cutter so as to machine the inclined oil hole in the crankshaft.

Optionally, elevating system includes first hydro-cylinder, and first hydro-cylinder includes the cylinder and can be in the telescopic link that the cylinder is flexible, and the cylinder articulates on the base, and the telescopic link articulates in the sloping platform bottom, is provided with a plurality of first scale marks along the telescopic link direction of height on the telescopic link.

Optionally, a second oil cylinder is arranged on the sloping platform along the sloping direction of the sloping platform, a telescopic end of the second oil cylinder is connected with a connecting piece, the connecting piece is connected with a clamping device, and the clamping device is slidably arranged on the sloping platform.

Optionally, a guide rail is arranged on the ramp along the inclination direction of the ramp, and the clamping device is slidably arranged on the guide rail.

Optionally, the guide rail is provided with a plurality of second graduation lines along the length direction of the guide rail.

Optionally, the clamping device includes a plurality of sliding blocks slidably disposed on the guide rail, at least one of the sliding blocks is connected to the connecting member, a bottom plate is disposed on the top of the guide sliding block, the bottom plate is parallel to the ramp and located above the second oil cylinder, and two sets of clamping mechanisms are disposed on the bottom plate and used for clamping two ends of the crankshaft.

Optionally, the two guide rails are provided, and each of the two guide rails is provided with at least one set of sliding block.

Optionally, the clamping mechanism comprises a frame arranged on the bottom plate, a lower clamping block is arranged in the frame, an adjusting mechanism is arranged at the top of the frame, an upper clamping block located above the lower clamping block is connected to the bottom of the adjusting mechanism, the adjusting mechanism is used for driving the upper clamping block to move up and down, and clamping grooves matched with the crankshaft are formed in the bottom of the upper clamping block and the top of the lower clamping block.

Optionally, the adjusting mechanism includes an adjusting screw thread connected to the top of the frame in a penetrating manner, the bottom of the adjusting screw is movably connected with a bearing seat located in the frame, the upper clamping block is arranged at the bottom of the bearing seat, a guide rod is arranged at the top of the frame, and the guide rod movably penetrates through the upper clamping block.

Optionally, the adjusting screw is connected with a limit nut in a threaded manner, and the limit nut is tightly abutted to the top of the frame.

The beneficial effect that this application can realize is as follows:

this application can drive all subassemblies on sloping platform and the sloping platform and wholly rotate through elevating system to adjustment sloping platform inclination, the bent axle axial lead on the clamping device also corresponds with horizontal contained angle and changes this moment, then installs perpendicular decurrent cutter on the jig subassembly, can process out oblique oilhole on the bent axle counterpoint position that the slope was arranged, has realized being convenient for to the effect that the oilhole processing contained angle adjusted to one side, has improved application scope.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings that are required in the detailed description of the present application or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of a crankshaft having oblique oil holes;

FIG. 2 is a schematic structural diagram of a fixture for machining an oblique oil hole of a crankshaft in an embodiment of the present application;

FIG. 3 is a schematic front view of a fixture for machining an oblique oil hole of a crankshaft according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural view of the left side view of FIG. 3 (with the crankshaft omitted);

FIG. 5 is a schematic structural diagram of the top view of FIG. 3;

fig. 6 is a schematic structural view of a clamping mechanism in an embodiment of the present application.

Reference numerals:

100-base, 200-first oil cylinder, 210-cylinder barrel, 220-telescopic rod, 221-first scale mark, 300-inclined table, 400-clamping device, 410-sliding block, 420-bottom plate, 430-clamping mechanism, 431-frame, 432-lower clamping block, 433-adjusting mechanism, 4331-adjusting screw rod, 4332-bearing seat, 4333-guide rod, 4334-limit nut, 434-upper clamping block, 500-crankshaft, 600-drilling die assembly, 700-second oil cylinder, 800-connecting piece, 900-guide rail and 910-second scale mark.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that all directional indications (such as up, down, left, right, front, back, 8230; \8230;) in the embodiments of the present application are only used to explain the relative positional relationship between the components in a particular posture, the motion situation, etc., and if the particular posture is changed, the directional indication is correspondingly changed.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. 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 addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Examples

Referring to fig. 1 to 6, the present embodiment provides a fixture for processing an oblique oil hole of a crankshaft, including a base 100, a lifting mechanism, an oblique table 300, a clamping device 400, and a jig assembly 600, wherein the lifting mechanism is hinged to the base 100, one end of the oblique table 300 is hinged to the base 100, the other end of the oblique table 300 is hinged to the top of the lifting mechanism, the clamping device 400 is disposed on the oblique table 300, the clamping device 400 is configured to clamp the crankshaft 500, so that the axial line of the crankshaft 500 is parallel to the oblique direction of the oblique table 300, and the jig assembly 600 is configured to mount a tool, so as to process an oblique oil hole on the crankshaft 500.

In this embodiment, since one end of the ramp 300 is hinged to the base 100, and the other end of the ramp 300 is hinged to the top of the lifting mechanism, during adjustment, the lifting mechanism can drive the ramp 300 and all components on the ramp 300 to integrally rotate, so as to adjust the inclination angle of the ramp 300, at this time, the axis line of the crankshaft 500 on the clamping device 400 and the horizontal included angle also change correspondingly, and then the tool which faces vertically downward is mounted on the drill jig assembly 600, so that the oblique oil hole can be processed at the position where the crankshaft 500 is aligned in an inclined manner, thereby achieving the effect of conveniently adjusting the processing included angle of the oblique oil hole, and improving the application range.

It should be noted that the drill jig assembly 600 is a machine tool fixture for guiding a tool to drill or ream a hole in a workpiece, i.e. a tool fixture for assisting in drilling, which is a prior art and will not be described herein again. Here, the jig assembly 600 is generally disposed on the base 100, and does not rotate therewith, and the jig assembly 600 may also be disposed on the sloping platform 300, and after the jig assembly 600 rotates by a certain angle, it is only necessary to ensure that the tool is perpendicular when the tool is mounted on the jig assembly 600, and here, a mounting assembly for mounting the tool may be detachably connected (for example, bolted) to the jig assembly 600, and after the adjustment is completed, the mounting assembly is horizontally mounted on the jig assembly 600, and the mounting assembly may ensure that the tool is perpendicular, and its specific implementation structure is many and is the prior art, and is not described herein again.

As an alternative embodiment, the lifting mechanism includes a first oil cylinder 200, the first oil cylinder 200 includes a cylinder 210 and an expansion link 220 capable of expanding and contracting in the cylinder 210, the cylinder 210 is hinged to the base 100, the expansion link 220 is hinged to the bottom of the sloping platform 300, and a plurality of first scale marks 221 are arranged on the expansion link 220 along the height direction of the expansion link 220.

In this embodiment, when the tilt angle is adjusted, the cylinder 210 is filled with or outputs hydraulic oil to drive the telescopic rod 220 to slide up and down, so as to adjust the tilt angle of the ramp 300 automatically, and the position of the first scale mark 221 can be penetrated during adjustment, so as to control the rotation angle accurately. It should be noted that, the first scale line 221 can be directly marked as an inclination angle, which is to convert the stroke distance of the telescopic rod 220 moving up and down into the rotation angle of the sloping platform 300, so that the adjustment is more intuitive.

As an alternative embodiment, a second oil cylinder 700 is disposed on the sloping platform 300 along the sloping direction of the sloping platform 300, a connecting member 800 is connected to the telescopic end of the second oil cylinder 700, the connecting member 800 is connected to the clamping device 400, and the clamping device 400 is slidably disposed on the sloping platform 300. The ramp 300 is provided with a guide rail 900 along the inclination direction of the ramp 300, and the clamping device 400 is slidably disposed on the guide rail 900.

In this embodiment, the second cylinder 700 can drive the clamping device 400 to slide along the guide rail 900 on the inclined table 300, so as to adjust the different processing positions of the crankshaft 500 on the clamping device 400 relative to the drill jig assembly 600, and process corresponding inclined oil holes at different positions on the crankshaft 500, thereby satisfying the processing of multiple inclined oil holes, being convenient and fast to operate, having high automation degree, and improving the universality.

As an alternative embodiment, the guide rail 900 is provided with a plurality of second graduation marks 910 along the length direction of the guide rail 900. When different positions of the clamping device 400 on the guide rail 900 are adjusted, the moving position of the crankshaft 500 on the clamping device 400 can be precisely controlled by observing the second scale marks 910, and the machining precision is improved.

As an alternative embodiment, the clamping device 400 includes a plurality of sliding blocks 410 slidably disposed on the guide rail 900, wherein at least one sliding block 410 is connected to the connecting member 800, a bottom plate 420 is disposed on the top of the guide sliding block 410, the bottom plate 420 is parallel to the ramp 300 and is located above the second cylinder 700, two sets of clamping mechanisms 430 are disposed on the bottom plate 420, and the two sets of clamping mechanisms 430 are used for clamping two ends of the crankshaft 500.

In this embodiment, when the second cylinder 700 extends and retracts, the connecting member 800 can drive the sliding block 410 to slide on the guide sliding rail 900, so as to drive the bottom plate 420 and the clamping mechanism 430 on the bottom plate 420 to move synchronously with the crankshaft 500, and the second cylinder 700 is located below the bottom plate 420, so that the automatic control is realized, the precision is high, and the structure is compact and the occupied space is small.

As an alternative embodiment, two guide rails 900 are provided, and at least one set of sliding blocks 410 is provided on each of the two guide rails 900. The second oil cylinder 700 is arranged between the two guide rails 900, so that the structure is compact, and the operation is stable and reliable.

As an optional implementation manner, the clamping mechanism 430 includes a frame 431 disposed on the bottom plate 420, a lower clamping block 432 is disposed in the frame 431, an adjusting mechanism 433 is disposed at the top of the frame 431, an upper clamping block 434 located above the lower clamping block 432 is connected to the bottom of the adjusting mechanism 433, the adjusting mechanism 433 is used for driving the upper clamping block 434 to move up and down, and clamping grooves matched with the crankshaft 500 are formed in the bottom of the upper clamping block 434 and the top of the lower clamping block 432.

In this embodiment, during installation, the crankshaft 500 is installed on the clamping grooves of the lower clamping blocks 432 of the two sets of clamping mechanisms 430, the upper clamping block 434 is driven by the adjusting mechanism 433 to move downwards to press the top of the crankshaft 500, so that the ends of the crankshaft 500 are clamped by the upper clamping block 434 and the lower clamping block 432, and the clamping structure is firm and stable. The holding groove can be a V-shaped groove or an arc-shaped groove.

As an alternative embodiment, the adjusting mechanism 433 includes an adjusting screw 4331 threaded through the top of the frame 431, a bearing seat 4332 located inside the frame 431 is movably connected to the bottom of the adjusting screw 4331, the upper clamping block 434 is disposed at the bottom of the bearing seat 4332, a guide rod 4333 is disposed at the top inside the frame 431, and the guide rod 4333 movably penetrates through the upper clamping block 434.

In this embodiment, during operation, the adjusting screw 4331 is screwed in, and due to the limiting effect of the guiding rod 4333, the upper clamping block 434 and the bearing seat 4332 connected to the top of the upper clamping block 434 do not rotate therewith, so that the rotation of the adjusting screw 4331 is converted into the up-and-down linear motion of the bearing seat 4332 and the upper clamping block 434. It should be noted that, here, the top of the adjusting screw 4331 can be connected with a handle for manual operation.

As an optional embodiment, a limit nut 4334 is threadedly connected to the adjusting screw 4331, the limit nut 4334 abuts against the top of the frame 431, and the limit nut 4334 can prevent the adjusting screw 4331 from loosening downwards, so as to further improve the stability of the clamping structure.

The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (10)

1. The utility model provides an anchor clamps are used in processing of oblique oilhole of bent axle which characterized in that includes:

a base;

the lifting mechanism is hinged to the base;

one end of the inclined table is hinged to the base, and the other end of the inclined table is hinged to the top of the lifting mechanism;

the clamping device is arranged on the inclined table and used for clamping the crankshaft so that the axis line of the crankshaft is parallel to the inclined direction of the inclined table;

and the drill jig assembly is used for mounting a cutter so as to machine an inclined oil hole on the crankshaft.

2. The clamp for machining the crankshaft inclined oil hole as claimed in claim 1, wherein the lifting mechanism comprises a first oil cylinder, the first oil cylinder comprises a cylinder barrel and a telescopic rod which can extend and retract in the cylinder barrel, the cylinder barrel is hinged to the base, the telescopic rod is hinged to the bottom of the inclined table, and a plurality of first scale marks are arranged on the telescopic rod along the height direction of the telescopic rod.

3. The apparatus as claimed in claim 1, wherein a second cylinder is disposed on the ramp in a direction along the ramp, a connecting member is connected to a telescopic end of the second cylinder, the connecting member is connected to the clamping device, and the clamping device is slidably disposed on the ramp.

4. The jig for machining an oblique oil hole in a crankshaft according to claim 3, wherein a guide rail is provided on the ramp in a direction in which the ramp is inclined, and the clamping device is slidably provided on the guide rail.

5. The jig for machining the inclined oil hole of the crankshaft according to claim 4, wherein the guide rail is provided with a plurality of second scale marks along a longitudinal direction of the guide rail.

6. The clamp for machining the oblique oil hole of the crankshaft as claimed in claim 4 or 5, wherein the clamping device comprises a plurality of sliding blocks slidably disposed on the sliding rail, at least one of the sliding blocks is connected to the connecting member, a bottom plate is disposed on the top of the sliding block, the bottom plate is parallel to the oblique table and is located above the second oil cylinder, and two sets of clamping mechanisms are disposed on the bottom plate and are used for clamping two ends of the crankshaft.

7. The jig for machining the oblique oil hole of the crankshaft as defined in claim 6, wherein two guide rails are provided, and at least one set of the slide blocks is provided on each of the two guide rails.

8. The clamp for machining the crankshaft inclined oil hole as claimed in claim 6, wherein the clamping mechanism comprises a frame disposed on the bottom plate, a lower clamping block is disposed in the frame, an adjusting mechanism is disposed on a top of the frame, an upper clamping block is connected to a bottom of the adjusting mechanism and located above the lower clamping block, the adjusting mechanism is used for driving the upper clamping block to move up and down, and clamping grooves matched with the crankshaft are formed in a bottom of the upper clamping block and a top of the lower clamping block.

9. The clamp for machining the crankshaft inclined oil hole as claimed in claim 8, wherein the adjusting mechanism comprises an adjusting screw which is in threaded through connection with the top of the frame, a bearing seat in the frame is movably connected to the bottom of the adjusting screw, the upper clamping block is arranged at the bottom of the bearing seat, a guide rod is arranged at the top of the frame, and the guide rod movably penetrates through the upper clamping block.

10. The clamp for machining the crankshaft inclined oil hole as claimed in claim 9, wherein a limit nut is threadedly connected to the adjusting screw, and the limit nut abuts against the top of the frame.

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