CN112872439B

CN112872439B - Hole milling device for machining automobile crankshaft

Info

Publication number: CN112872439B
Application number: CN202110059761.4A
Authority: CN
Inventors: 陈萍
Original assignee: Shanxi Dongxin Henglong Machinery Manufacturing Co ltd
Current assignee: Shanxi Dongxin Henglong Machinery Manufacturing Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2022-06-10
Anticipated expiration: 2041-01-18
Also published as: CN112872439A

Abstract

The invention provides a hole milling device for machining an automobile crankshaft, which comprises a milling machine, a workbench and a special-shaped clamping fixed seat, wherein a strip-shaped clamping groove is formed in the top of the special-shaped clamping fixed seat, a plurality of telescopic grooves are formed in the inner side wall of the bottom of the strip-shaped clamping groove, a convex movable seat is movably mounted in the bottom of each telescopic groove, the hole milling device for machining the automobile crankshaft is reasonable in design, a plurality of telescopic bearing seats are mounted in the strip-shaped clamping groove, an arc-shaped fitting groove is formed in the top of each bearing seat, the arc-shaped fitting grooves of the plurality of bearing seats can be completely fitted to each part of the automobile crankshaft, when the automobile crankshaft is correspondingly placed on each bearing seat, the automobile crankshaft can automatically correct the position under the limiting effect of the arc-shaped fitting grooves, the hole milling efficiency of the automobile crankshaft can be effectively improved, and the stability of the automobile crankshaft can be improved, prevent the activity of automobile crankshaft, be favorable to the promotion of milling bore quality.

Description

Hole milling device for machining automobile crankshaft

Technical Field

The invention belongs to the technical field of automobile crankshaft machining equipment, and particularly relates to a hole milling device for machining an automobile crankshaft.

Background

In the process of milling holes of the automobile crankshaft, the automobile crankshaft needs to be completely fixed, the automobile crankshaft cannot move to ensure the quality and the precision of the milling holes of the automobile crankshaft, the fixing of the automobile crankshaft is difficult due to the structural characteristics of the automobile crankshaft, and the automobile crankshaft is easy to move and rotate in the process of milling holes in positions, which are not located on a central line, of the automobile crankshaft, so that the quality and the precision of the milling holes are reduced, and therefore a large clamping force needs to be applied to the automobile crankshaft, and the automobile crankshaft is easy to damage.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a hole milling device for machining an automobile crankshaft, which is reasonable in design, a plurality of telescopic bearing seats are installed in a strip-shaped clamping groove, an arc attaching groove is formed in the top of each bearing seat, the arc attaching grooves of the plurality of bearing seats can be completely attached to each part of the automobile crankshaft, when the automobile crankshaft is correspondingly placed on each bearing seat, the position of the automobile crankshaft can be automatically corrected under the limiting effect of the arc attaching grooves, the hole milling efficiency of the automobile crankshaft can be effectively improved, the stability of the automobile crankshaft can be improved, the automobile crankshaft is prevented from moving, and the hole milling quality is favorably improved.

In order to achieve the purpose, the invention is realized by the following technical scheme: a hole milling device for machining an automobile crankshaft comprises a milling machine, a workbench and a special-shaped clamping fixing seat, wherein a strip-shaped clamping groove is formed in the top of the special-shaped clamping fixing seat, a plurality of telescopic grooves are formed in the inner side wall of the bottom of the strip-shaped clamping groove, a convex movable seat is movably mounted in the bottom of each telescopic groove, a connecting rod is fixedly connected to the top of each convex movable seat, a top plate is movably mounted in the opening end of each telescopic groove, the top plate is fixedly connected with the connecting rod, a hexagonal limiting rod is fixedly connected to the top of the top plate, a hexagonal connecting groove is formed in the bottom of the bearing seat, the bottom of the bearing seat penetrates through the opening end of each telescopic groove and is sleeved on the hexagonal limiting rod through the hexagonal connecting groove, an arc-shaped laminating groove is formed in the top of the bearing seat, an oil supply pipeline is arranged in the bottom of the special-shaped clamping fixing seat, and a connecting pipe is fixedly connected between the oil supply pipeline and the bottom of the telescopic grooves, the connecting pipe is provided with a flow control valve, the bottom of the special-shaped clamping fixing seat is internally provided with a pressurizing channel, the inner side wall at one side of the pressurizing channel is fixedly provided with an electric push rod, the pressurizing channel is internally and movably provided with a buffer device, the buffer device comprises a piston and a connecting seat, one side of the piston is fixedly provided with a spring seat, one side of the spring seat is provided with a concave spring groove, the inner side wall of the concave spring groove far away from the opening end is fixedly connected with a buffer spring, one side of the connecting seat is fixedly provided with a convex push rod, one end of the convex push rod penetrates through the opening end of the concave spring groove and is fixedly connected with the buffer spring, the output shaft of the electric push rod is fixedly connected with the other side of the connecting seat, the strip-shaped clamping groove is internally and movably provided with a movable clamping seat, and the inner side walls at the front side and the rear side of the strip-shaped clamping groove are both provided with a sliding groove, the equal fixed mounting in front side and the rear side of activity centre gripping seat has the slide, slide movable mounting is in the spout, the screw has been seted up on the slide, the both ends of dysmorphism centre gripping fixing base and the position department fixed mounting that the spout corresponds have the low-speed motor, fixedly connected with screw rod on the output shaft of low-speed motor, the through-hole has been seted up on the inside wall of spout one side, the one end of screw rod is passed the through-hole and is connected with the inside wall of spout opposite side through the axis of rotation, the slide passes through the screw cover and establishes on the screw rod, be connected with the power cord on the milling machine.

As a preferred embodiment of the present invention, a top groove is formed at a position corresponding to the special-shaped clamping fixing seat at the bottom of the movable clamping seat.

As a preferred embodiment of the present invention, the number of the hexagonal limiting rods on the top of the top plate is 2, and the number of the movable clamping seats is 2.

In a preferred embodiment of the present invention, the pressurizing passage and the oil supply pipe are filled with hydraulic oil.

As a preferred embodiment of the present invention, the worktable is fixedly installed on a milling machine, and the special-shaped clamping fixing seat is embedded in the worktable and fixed by a bolt.

As a preferred embodiment of the present invention, a control panel is installed on the front side of the workbench, a processor is installed in the control panel, an operation button is installed on the control panel, one end of the power cord is connected to a plug, the power cord is electrically connected to the processor, the operation button, the flow control valve, the low speed motor and the electric push rod through a power supply circuit, and the processor is electrically connected to the operation button, the flow control valve, the low speed motor and the electric push rod.

The invention has the beneficial effects that: the invention discloses a hole milling device for machining an automobile crankshaft, which comprises a milling machine, a workbench, a special-shaped clamping fixed seat, a strip-shaped clamping groove, a telescopic groove, a convex movable seat, a connecting rod, a top plate, a hexagonal limiting rod, a bearing seat, a hexagonal connecting groove, an arc-shaped fitting groove, an oil supply pipeline, a connecting pipe, a flow control valve, a pressurizing channel, an electric push rod, a buffer device, a piston, a connecting seat, a spring seat, a concave spring groove, a buffer spring, a convex push rod, a movable clamping seat, a sliding groove, a sliding seat, a screw hole, a top groove, a power line, a low-speed motor, a screw and a control plate.

1. This milling holes device for automobile crankshaft processing's bar centre gripping inslot has installed the seat that bears that a plurality of can stretch out and draw back, the top of bearing the seat is provided with arc laminating groove, the arc laminating groove that a plurality of bore the seat can laminate in each part of automobile crankshaft completely, when bearing the seat on each with automobile crankshaft correspondence, under the limiting displacement in arc laminating groove, automobile crankshaft can carry out position correction automatically, can improve automobile crankshaft's milling holes efficiency effectively, and, can improve automobile crankshaft's stability, prevent automobile crankshaft's activity, be favorable to the promotion of milling holes quality, and, when fixing automobile crankshaft, only need provide less clamping force through the activity centre gripping seat and just can avoid automobile crankshaft's activity, thereby can prevent automobile crankshaft deformation and damage.

2. This automobile crankshaft processing is with milling flutes device's seat of bearing is connected with the roof through the cooperation of hexagonal spread groove and hexagonal gag lever post, can be very convenient will bear the seat and dismantle to get off and change and have stronger stability, can not rock at the in-process that uses, guarantee the quality of milling flutes, through the seat of bearing of changing the arc laminating groove that has different radians, can be adapted to the automobile crankshaft's of different specifications use, it is flexible by protruding type sliding seat drive to bear the seat, hydraulic oil is when promoting protruding type sliding seat rebound, the oil pressure of hydraulic oil is at first played the edge of protruding type sliding seat bottom, thereby can prevent the edge deformation of protruding type sliding seat, and the service life is prolonged.

3. This automobile crankshaft processing is with milling hole device's pressure boost passageway movable mounting buffer, electric putter passes through buffer and promotes hydraulic oil and flow to provide protruding type sliding seat and remove required oil pressure, buffer can play the effect of oil pressure buffering, can prevent that the too high damage to each part of oil pressure in pressure boost passageway and the oil supply pipe, thereby can improve life.

Drawings

FIG. 1 is a schematic structural diagram of a hole milling device for machining an automobile crankshaft according to the present invention;

FIG. 2 is a schematic structural view of a special-shaped clamping fixing seat of the hole milling device for machining an automobile crankshaft of the present invention;

FIG. 3 is a schematic sectional view of a special-shaped clamping fixing seat of the hole milling device for machining an automobile crankshaft of the present invention;

FIG. 4 is a schematic structural view of a movable clamping seat of the hole milling device for machining an automobile crankshaft of the present invention;

FIG. 5 is a schematic cross-sectional view of a bearing seat of the hole milling device for machining an automobile crankshaft according to the present invention;

FIG. 6 is a schematic view of a bearing seat of the hole milling device for machining the automobile crankshaft of the present invention;

FIG. 7 is a schematic structural diagram of a top plate of the hole milling device for machining an automobile crankshaft according to the present invention;

FIG. 8 is a schematic cross-sectional view of a special-shaped clamping holder of the hole milling device for machining an automobile crankshaft according to the present invention;

FIG. 9 is a schematic cross-sectional view of a buffering mechanism of a hole milling device for machining an automobile crankshaft according to the present invention;

in the figure: 1. milling machine; 2. a work table; 3. a special-shaped clamping fixed seat; 4. a strip-shaped clamping groove; 5. a telescopic groove; 6. a convex movable seat; 7. a connecting rod; 8. a top plate; 9. a hexagonal limiting rod; 10. a bearing seat; 11. a hexagonal connecting groove; 12. an arc-shaped fitting groove; 13. an oil supply conduit; 14. a connecting pipe; 15. a flow control valve; 16. a pressurizing passage; 17. an electric push rod; 18. a buffer device; 19. a piston; 20. a connecting seat; 21. a spring seat; 22. a concave spring groove; 23. a buffer spring; 24. a convex push rod; 25. a movable clamping seat; 26. a chute; 27. a slide base; 28. a screw hole; 29. a top groove; 30. a power line; 31. a low-speed motor; 32. a screw; 33. and a control panel.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 9, the present invention provides a technical solution: a hole milling device for machining an automobile crankshaft comprises a milling machine 1, a workbench 2 and a special-shaped clamping fixing seat 3, wherein a strip-shaped clamping groove 4 is formed in the top of the special-shaped clamping fixing seat 3, a plurality of telescopic grooves 5 are formed in the inner side wall of the bottom of the strip-shaped clamping groove 4, a convex movable seat 6 is movably mounted in the bottom of each telescopic groove 5, a connecting rod 7 is fixedly connected to the top of each convex movable seat 6, a top plate 8 is movably mounted in the opening end of each telescopic groove 5, the top plate 8 is fixedly connected with the connecting rod 7, a hexagonal limiting rod 9 is fixedly connected to the top of the top plate 8, a hexagonal connecting groove 11 is formed in the bottom of a bearing seat 10, the bottom of the bearing seat 10 penetrates through the opening end of each telescopic groove 5 and is sleeved on the hexagonal limiting rod 9 through the hexagonal connecting groove 11, an arc-shaped laminating groove 12 is formed in the top of the bearing seat 10, an oil supply pipeline 13 is arranged in the bottom of the special-shaped clamping fixing seat 3, a connecting pipe 14 is fixedly connected between the oil supply pipeline 13 and the bottom of the telescopic groove 5, a flow control valve 15 is installed on the connecting pipe 14, a pressurizing passage 16 is arranged in the bottom of the special-shaped clamping fixing seat 3, an electric push rod 17 is fixedly installed on the inner side wall of one side of the pressurizing passage 16, a buffer device 18 is movably installed in the pressurizing passage 16, the buffer device 18 comprises a piston 19 and a connecting seat 20, a spring seat 21 is fixedly installed on one side of the piston 19, a concave spring groove 22 is formed in one side of the spring seat 21, a buffer spring 23 is fixedly connected to the inner side wall, far away from the opening end, of the concave spring groove 22, a convex push rod 24 is fixedly installed on one side of the connecting seat 20, one end of the convex push rod 24 penetrates through the opening end of the concave spring groove 22 and is fixedly connected with the buffer spring 23, and the output shaft of the electric push rod 17 is fixedly connected with the other side of the connecting seat 20, movable mounting has movable holder 25 in the bar centre gripping groove 4, spout 26 has all been seted up on the inside wall of bar centre gripping groove 4 front side and rear side, the equal fixed mounting in front side and the rear side of activity holder 25 has slide 27, slide 27 movable mounting is in spout 26, screw 28 has been seted up on the slide 27, the both ends of dysmorphism centre gripping fixing base 3 and the position department fixed mounting that spout 26 corresponds have low-speed motor 31, fixedly connected with screw rod 32 on the output shaft of low-speed motor 31, the through-hole has been seted up on the inside wall of spout 26 one side, the one end of screw rod 32 is passed the through-hole and is connected with the inside wall of spout 26 opposite side through the axis of rotation, slide 27 establishes on screw rod 32 through the screw cover, be connected with power cord 30 on the milling machine 1.

As a preferred embodiment of the present invention, a top groove 29 is formed at a position where the bottom of the movable clamping seat 25 corresponds to the special-shaped clamping fixed seat 3, and when the movable clamping seat 25 clamps the automobile crankshaft, the top of the bearing seat 10 can pass through the top groove 29.

As a preferred embodiment of the present invention, the number of the hexagonal limiting rods 9 on the top of the top plate 8 is 2, the number of the movable clamping seats 25 is 2, and the bearing seat 10 is connected to the top plate 8 through the hexagonal connecting grooves 11 and the hexagonal limiting rods 9 in a matching manner, so that the bearing seat 10 can be very conveniently detached for replacement and has strong stability, no shaking occurs during use, and the quality of milled holes is ensured.

In a preferred embodiment of the present invention, the pressurizing passage 16 and the oil supply line 13 are filled with hydraulic oil.

In a preferred embodiment of the present invention, the worktable 2 is fixedly installed on the milling machine 1, and the special-shaped clamping fixing seat 3 is embedded on the worktable 2 and fixed by bolts.

In a preferred embodiment of the present invention, a control panel 33 is installed on the front side of the table 2, a processor is installed in the control panel 33, an operation button is installed on the control panel 33, one end of the power cord 30 is connected with a plug, the power cord 30 is respectively and electrically connected with the processor, the operation button, the flow control valve 15, the low speed motor 31 and the electric push rod 17 through a power supply circuit, and the processor is respectively and electrically connected with the operation button, the flow control valve 15, the low speed motor 31 and the electric push rod 17.

As a preferred embodiment of the present invention, a plurality of telescopic bearing seats 10 are installed in the strip-shaped clamping groove 4, an arc-shaped attaching groove 12 is disposed at the top of the bearing seat 10, the arc-shaped attaching grooves 12 of the plurality of bearing seats 10 can be completely attached to each part of the automobile crankshaft, when the automobile crankshaft is correspondingly placed on each bearing seat 10, the automobile crankshaft can automatically perform position correction under the limiting action of the arc-shaped attaching grooves 12, thereby effectively improving the hole milling efficiency of the automobile crankshaft, improving the stability of the automobile crankshaft, preventing the automobile crankshaft from moving, and facilitating the improvement of the hole milling quality, and when the automobile crankshaft is fixed, the automobile crankshaft can be prevented from moving only by providing a small clamping force through the movable clamping seat 25, thereby preventing the automobile crankshaft from deforming and damaging, when in use, the power line 30 is connected to an external power supply through a plug, according to the specification of the automobile crankshaft, selecting and using the bearing seats 10 with the arc-shaped fit grooves 12 with different radians, inputting a starting instruction through an operation key, controlling the electric push rod 17 to extend by the processor, driving the buffer device 18 to move in the pressurizing channel 16 by the electric push rod 17, pushing the hydraulic oil into the oil supply pipeline 13 by the buffer device 18, controlling the amount of the hydraulic oil entering the telescopic groove 5 through the connecting pipe 14 by the processor through the flow control valve 15, pushing the convex movable seat 6 to move upwards by the hydraulic oil, driving the top plate 8 to move upwards by the convex movable seat 6 through the connecting rod 7, pushing the bearing seats 10 to extend out by the top plate 8, so that each bearing seat 10 extends out by a certain height respectively, all parts of the automobile crankshaft can be completely fit in the arc-shaped fit grooves 12, in the process, pushing the hydraulic oil to flow by the electric push rod 17 through the buffer device 18 to provide the oil pressure required by the movement of the convex movable seat 6, the buffer device 18 can perform a function of oil pressure buffering, and can prevent each component from being damaged by excessive oil pressure in the pressurizing passage 16 and the oil supply pipe 13, thereby improving the service life.

As a preferred embodiment of the present invention, the bearing seat 10 is connected to the top plate 8 through the matching of the hexagonal connecting groove 11 and the hexagonal limiting rod 9, so that the bearing seat 10 can be very conveniently detached for replacement and has strong stability, the bearing seat does not shake during use, and the quality of milled holes is ensured, the bearing seat 10 having the arc-shaped attaching grooves 12 with different radians can be adapted to the use of automobile crankshafts of different specifications by replacing the bearing seat 10, the bearing seat 10 is driven by the convex movable seat 6 to stretch, when the convex movable seat 6 is pushed to move upwards by hydraulic oil, the oil pressure of the hydraulic oil first acts on the edge of the bottom of the convex movable seat 6, so that the edge deformation of the convex movable seat 6 can be prevented, and the service life of the bearing seat is prolonged.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a milling holes device for automobile crankshaft processing, bears seat (10) including milling machine (1), workstation (2) and dysmorphism centre gripping fixing base (3) and a plurality of, its characterized in that, bar centre gripping groove (4) have been seted up at the top of dysmorphism centre gripping fixing base (3), a plurality of flexible groove (5) have been seted up on the inside wall of bar centre gripping groove (4) bottom, movable mounting has protruding type sliding seat (6) in the bottom of flexible groove (5), the top fixedly connected with connecting rod (7) of protruding type sliding seat (6), movable mounting has roof (8) in the open end of flexible groove (5), roof (8) and connecting rod (7) fixed connection, six arris of top fixedly connected with gag lever post (9) of roof (8), bear the bottom of seat (10) and seted up six arris spread groove (11), the bottom of bearing seat (10) is passed the open end of flexible groove (5) and is overlapped through six arris (11) spread groove (11) Establish on hexagonal gag lever post (9), arc laminating groove (12) have been seted up at the top of bearing seat (10), the bottom of dysmorphism centre gripping fixing base (3) embeds there is oil supply pipe (13), fixedly connected with connecting pipe (14) between the bottom of oil supply pipe (13) and telescopic slot (5), install flow control valve (15) on connecting pipe (14), pressure boost passageway (16) have been seted up in the bottom of dysmorphism centre gripping fixing base (3), fixed mounting has electric putter (17) on the inside wall of pressure boost passageway (16) one side, movable mounting has buffer (18) in pressure boost passageway (16), buffer (18) include piston (19) and connecting seat (20), one side fixed mounting of piston (19) has spring holder (21), concave type spring groove (22) have been seted up to one side of spring holder (21), the buffer spring (23) is fixedly connected to the inner side wall, far away from the opening end, of the concave spring groove (22), a convex push rod (24) is fixedly mounted on one side of the connecting seat (20), one end of the convex push rod (24) penetrates through the opening end of the concave spring groove (22) and is fixedly connected with the buffer spring (23), the output shaft of the electric push rod (17) is fixedly connected with the other side of the connecting seat (20), a movable clamping seat (25) is movably mounted in the bar-shaped clamping groove (4), sliding grooves (26) are formed in the inner side walls of the front side and the rear side of the bar-shaped clamping groove (4), sliding seats (27) are fixedly mounted on the front side and the rear side of the movable clamping seat (25), the sliding seats (27) are movably mounted in the sliding grooves (26), screw holes (28) are formed in the sliding seats (27), and low-speed motors (31) are fixedly mounted at positions, corresponding to the two ends of the special-shaped clamping fixing seat (3) and the sliding grooves (26), a screw rod (32) is fixedly connected on an output shaft of the low-speed motor (31), a through hole is arranged on the inner side wall of one side of the chute (26), one end of the screw rod (32) passes through the through hole and is connected with the inner side wall at the other side of the chute (26) through a rotating shaft, the slide seat (27) is sleeved on the screw rod (32) through a screw hole, the milling machine (1) is connected with a power line (30), a top groove (29) is arranged at the position of the bottom of the movable clamping seat (25) corresponding to the special-shaped clamping fixed seat (3), when the movable clamping seat (25) clamps the automobile crankshaft, the top of the bearing seat (10) can penetrate through the top groove (29), the number of the top grooves (29) is 2, the arc-shaped attaching grooves (12) of the plurality of bearing seats (10) can be completely attached to each part of the automobile crankshaft, and the automobile crankshaft is correspondingly placed on each bearing seat (10).

2. The hole milling device for machining the automobile crankshaft as claimed in claim 1, wherein: the number of the hexagonal limiting rods (9) at the top of the top plate (8) is 2, and the number of the movable clamping seats (25) is 2.

3. The hole milling device for machining the automobile crankshaft as claimed in claim 1, wherein: and hydraulic oil is filled in the pressurizing channel (16) and the oil supply pipeline (13).

4. The hole milling device for machining the automobile crankshaft as claimed in claim 1, wherein: the special-shaped clamping device is characterized in that the workbench (2) is fixedly arranged on the milling machine (1), and the special-shaped clamping fixing seat (3) is embedded on the workbench (2) and fixed through a bolt.

5. The hole milling device for machining the automobile crankshaft as claimed in claim 1, wherein: control panel (33) are installed to the front side of workstation (2), control panel (33) embeds there is the treater, install the operation button on control panel (33), the one end of power cord (30) is connected with the plug, power cord (30) pass through supply circuit respectively with treater, operation button, flow control valve (15), low-speed motor (31) and electric putter (17) electric connection, the treater respectively with operation button, flow control valve (15), low-speed motor (31) and electric putter (17) electric connection.