CN215510272U

CN215510272U - Grinding device for long shaft of crankshaft

Info

Publication number: CN215510272U
Application number: CN202121593199.5U
Authority: CN
Inventors: 程文; 顾加平; 诸冬良
Original assignee: Jiaxing Xinwang Machinery Manufacturing Co Ltd
Current assignee: Jiaxing Xinwang Machinery Manufacturing Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-01-14
Anticipated expiration: 2031-07-14

Abstract

The utility model relates to the technical field of crankshaft machining equipment, in particular to a grinding device for a crankshaft long shaft, which comprises a machining table, a positioning mechanism and a grinding mechanism, wherein the positioning mechanism comprises a positioning base fixing station and a clamping assembly, a through hole for a crankshaft piece to be inserted is formed in the fixing station, the clamping assembly comprises a first clamping block, a second clamping block and an air cylinder, the grinding mechanism comprises a grinding wheel and a first driving motor for the grinding wheel to run, the grinding wheel is connected with the driving motor through a rotating shaft, the positioning mechanism is connected with the machining table through a sliding assembly, and the sliding assembly comprises a sliding rail, a sliding block and a second driving motor for the sliding block to move.

Description

Grinding device for long shaft of crankshaft

Technical Field

The utility model relates to the technical field of crankshaft machining equipment, in particular to a grinding device for a long shaft of a crankshaft.

Background

The crankshaft is a main rotating part of the engine, can bear the up-and-down (reciprocating) motion of the connecting rod to be changed into a circulating (rotating) motion after the connecting rod is arranged, is an important part on the engine, and comprises the steps of blank casting, forging, rough and finish turning, strengthening treatment and the like in the machining process of the crankshaft.

Because the long shaft of the crankshaft needs to move around the circumference when being polished, the polishing work of the long shaft of the crankshaft is very difficult, and the periphery of the long shaft of the crankshaft is generally polished by adopting a single polishing grinding wheel or a plurality of polishing grinding wheels, so that if the positioning and fixing effect of the crankshaft is poor, the crankshaft can easily move in the process of polishing by the high-speed rotation of the polishing grinding wheels, the polishing deviation is caused, and the integral quality is influenced; meanwhile, the existing equipment is generally that crankshaft pieces are manually placed on polishing pieces to be polished, and if the crankshaft pieces are improperly operated, certain danger is easily generated for operating workers.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the grinding device for the long shaft of the crankshaft, which has the advantages of reasonable structural design, good stabilizing effect and convenience in operation.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a grinding device for bent axle major axis, includes the processing platform, arranges processing bench positioning mechanism and grinding machanism in, positioning mechanism includes the location base, arranges the fixed station on the location base in and arranges the clamping component of fixed station both sides in, set up on the fixed station and supply bent axle spare male through-hole, clamping component includes that first clamp piece, second press from both sides tight piece and supply that first clamp piece presss from both sides tight piece and the second and press from both sides the cylinder that tight activity was pressed from both sides, grinding machanism is including the emery wheel of polishing and supply emery wheel moving first driving motor, adopts the pivot to be connected between emery wheel of polishing and the driving motor, be connected through sliding assembly between positioning mechanism and the processing platform, sliding component includes slide rail, slider and the second driving motor that supplies the slider to remove.

Further, the grinding wheel is of a cylindrical structure, and a cavity for placing a long shaft of the crankshaft piece is formed in the middle of the grinding wheel.

Furthermore, the first clamping block and the second clamping block are connected with two side walls of the short shaft of the crankshaft in an abutting mode, and abutting connection portions of the first clamping block and the second clamping block are arc-shaped.

Still further, still be equipped with the protective layer on the conflict connecting portion of first clamp piece and second clamp piece, the protective layer adopts the rubber material to make.

Further, the processing bench is also provided with a cleaning structure, and the cleaning structure comprises a fan arranged on the front side of the grinding wheel and a recycling box arranged on the rear side of the grinding wheel.

Compared with the prior art, the utility model has the beneficial effects that:

the crankshaft grinding machine adopts a cylindrical grinding wheel, a long shaft of a crankshaft to be ground is arranged in the middle of the cylindrical grinding wheel, and the rotating shaft drives the grinding wheel to rotate at a high speed, so that the grinding wheel can uniformly and circumferentially grind a crankshaft part; simultaneously, adopt two tight pieces of clamp to press from both sides tight the minor axis portion of bent axle spare to strengthen its stability, improve the accuracy nature of polishing. In order to facilitate the operation and ensure the safety of an operator, the crankshaft grinding machine is further provided with a sliding assembly, and the sliding assembly can start to move after the operator places the crankshaft on the positioning base, so that the crankshaft to be machined is conveyed into the grinding wheel, and the crankshaft grinding machine is convenient to operate and can prevent the danger possibly generated when the operator directly places the crankshaft on a grinding position.

Drawings

FIG. 1 is a front view of the overall structure of an embodiment of the present invention;

FIG. 2 is a side cross-sectional view of a portion of an embodiment of the present invention;

fig. 3 is a schematic view of the overall structure of the first clamping block according to the embodiment of the utility model.

In the figure: 1-a processing table; 2-a positioning mechanism; 21-positioning a base; 22-a fixed station; 23-a clamping assembly; 231-a first clamping block; 232-a second clamping block; 233-cylinder; 3-a polishing mechanism; 31-grinding the grinding wheel; 32-a first drive motor; 4-a rotating shaft; 5-a sliding assembly; 51-a slide rail; 52-a slide block; 53-a second drive motor; 6-a protective layer; 7-a fan; 8-a recycling bin; 9-crankshaft piece.

Detailed Description

The following examples and figures 1-3 illustrate further embodiments of the present invention.

The concrete structure of the embodiment is as follows: a grinding device for a long shaft of a crankshaft comprises a processing table 1, and a positioning mechanism 2 and a grinding mechanism 3 which are arranged on the processing table 1, wherein the positioning mechanism 2 mainly comprises a positioning base 21, a fixing station 22 arranged on the positioning base 21 and clamping assemblies 23 arranged on two sides of the fixing station 22, and a through hole for inserting the crankshaft piece 9 is formed in the fixing station 22, namely, one end of the long shaft of the crankshaft piece 9 faces the through hole and then is inserted into the through hole. Because the long shaft of the crankshaft adopts a circular motion grinding mode during grinding, the grinding work of the crankshaft is very difficult, in order to ensure that the crankshaft 9 has good stability in the grinding process and cannot move randomly to influence the grinding accuracy, clamping assemblies 23 are arranged on two sides of the crankshaft 9, the clamping assembly 23 mainly comprises a first clamping block 231, a second clamping block 232 and a cylinder 233 for clamping the first clamping block 231 and the second clamping block 232, wherein the first clamping block 231 and the second clamping block 232 are in interference connection with two side walls of a short shaft of the crankshaft, in order to achieve better clamping effect, the interference connection parts of the first clamping block 231 and the second clamping block 232 are both arc-shaped, namely, the short shaft side wall of the crank shaft piece 9 is matched, so that the short shaft can be just embedded into the interference connection part of the clamping block, and the first clamping block 231 and the second clamping block 232 are matched to firmly clamp the short shaft from two sides. Because the first clamping block 231 and the second clamping block 232 need to be clamped, telescopic rods are connected with the air cylinder 233, so that the operation is simple, and the stability is good.

Simultaneously, in order not to produce certain wearing and tearing or scratch to bent axle spare 9 surface, still be equipped with protective layer 6 on the conflict connecting portion of first clamp piece 231 and second clamp piece 232, protective layer 6 adopts the rubber material to make, and is with low costs the practicality strong.

The grinding mechanism 3 mainly comprises a grinding wheel 31 and a first driving motor 32 for driving the grinding wheel 31 to rotate, the grinding wheel 31 is of a cylindrical structure, a cavity for placing a long shaft of the crankshaft piece 9 is formed in the middle of the grinding wheel 31, namely, the grinding wheel 31 is of a concentric cylindrical structure, and the long shaft of the crankshaft piece 9 is placed in the cavity of the grinding wheel 31. Adopt pivot 4 to be connected between grinding wheel 31 and the driving motor, start driving motor back promptly, will drive grinding wheel 31 by pivot 4 and carry out fast-speed rotation to carry out the circularity to the major axis outside of bent axle spare 9 and polish, such mode of polishing is comparatively even, does not have very big deviation, and the accuracy is higher.

Because the existing equipment is generally that crankshaft pieces 9 are manually placed on grinding pieces to be ground, if the existing equipment is not operated properly, the grinding pieces are easy to cause certain danger to operators. Therefore, the utility model adds a sliding component 5 between the positioning mechanism 2 and the processing table 1, and the sliding component 5 mainly comprises a slide rail 51, a slide block 52 and a second driving motor 53 for moving the slide block 52. When crankshaft 9 needs to be placed, positioning mechanism 2 is placed at the outermost end, and after the crankshaft is placed and clamped, second driving motor 53 is started to drive sliding block 52 to move inwards on sliding rail 51 to grinding wheel 31 for grinding operation.

In order to handle the iron fillings in the grinding wheel 31 in time, still be equipped with clearance structure on processing platform 1, clearance structure is mainly including arranging fan 7 of grinding wheel 31 front side in and arranging the collection box 8 of grinding wheel 31 rear side in, just open fan 7 when needs clearance, fan 7 will blow to grinding wheel 31 inboard, impurity such as these iron fillings will fall and unify the recovery in the collection box 8 that the rear side set up afterwards, and the practicality is stronger.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art should be able to make general changes and substitutions within the technical scope of the present invention.

Claims

1. The utility model provides a grinding device for bent axle major axis, includes the processing platform, arranges positioning mechanism and grinding machanism on the processing platform in, its characterized in that: the positioning mechanism comprises a positioning base, a fixing station arranged on the positioning base and clamping assemblies arranged on two sides of the fixing station, a through hole for inserting a crankshaft piece is formed in the fixing station, each clamping assembly comprises a first clamping block, a second clamping block and an air cylinder for clamping the first clamping block and the second clamping block, the grinding mechanism comprises a grinding wheel and a first driving motor for driving the grinding wheel to rotate, the grinding wheel is connected with the driving motor through a rotating shaft, the positioning mechanism is connected with the machining table through a sliding assembly, and the sliding assembly comprises a sliding rail, a sliding block and a second driving motor for moving the sliding block.

2. A grinding device for a long shaft of a crankshaft as claimed in claim 1, wherein: the grinding wheel is of a cylindrical structure, and a cavity for placing a long shaft of the crankshaft piece is formed in the middle of the grinding wheel.

3. A grinding device for a long shaft of a crankshaft as claimed in claim 2, wherein: the first clamping block and the second clamping block are connected with two side walls of a short shaft of the crankshaft in an abutting mode, and abutting connection portions of the first clamping block and the second clamping block are arc-shaped.

4. A grinding device for a long shaft of a crankshaft as claimed in claim 3, wherein: still be equipped with the protective layer on the conflict connecting portion of first clamp piece and second clamp piece, the protective layer adopts the rubber material to make.

5. A grinding device for a long shaft of a crankshaft as claimed in claim 1, wherein: the processing bench is also provided with a cleaning structure, and the cleaning structure comprises a fan arranged on the front side of the grinding wheel and a recycling box arranged on the rear side of the grinding wheel.