CN215846851U

CN215846851U - Grinding device for crankshaft machining

Info

Publication number: CN215846851U
Application number: CN202121845227.8U
Authority: CN
Inventors: 赵荣全; 赵虎; 贺少华
Original assignee: Changzhou Xiangda Forging Co ltd
Current assignee: Changzhou Xiangda Forging Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-18
Anticipated expiration: 2031-08-09

Abstract

The utility model relates to the technical field of crankshaft machining, in particular to a grinding device for crankshaft machining, which comprises a base, wherein a plurality of supporting frames are fixedly arranged in the base, the top ends of the supporting frames are fixedly provided with first telescopic motors with output shafts vertically upwards, and the output shaft of the first telescopic motor is connected with a fixed frame, the top end of the base is fixedly provided with a casing, a cross bar is fixedly arranged on the inner wall of the top end of the shell, a groove is arranged at the bottom of the cross bar, an electric screw rod is rotationally connected in the groove, a moving block is connected to the outer side of the electric screw rod through threads, and the bottom of the moving block is fixedly provided with a first rotating motor, the bottom of the first rotating motor is fixedly provided with a second telescopic motor, and the output shaft of the second telescopic motor is connected with a second rotating motor, one side of the second rotating motor is connected with a cutting blade, and one side of the cutting blade is connected with a sanding disc. The crankshaft grinding machine can change the fixed position, can grind any position of the crankshaft, and is high in flexibility.

Description

Grinding device for crankshaft machining

Technical Field

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

Background

The crankshaft is mainly composed of a main journal, a link arm, a link journal and the like, is an important part on the engine, is used for converting up-and-down (reciprocating) motion of an engine piston into circulating (rotating) motion, and is a power source of the engine. Due to the fact that the crankshaft is complex in structure and special in shape, when key grinding and fine machining are conducted, the located crankshaft connecting rod neck and the rotation center of a machine tool generate eccentricity (namely the stroke value of the crankshaft), machining difficulty of the crankshaft with high precision requirements is large, the rejection rate (mainly reflected in phase angle out-of-tolerance) is high, and machining cost is greatly increased accordingly.

Before grinding work is carried out on a crankshaft, the crankshaft needs to be fixed firstly, but most of fixed positions in the existing grinding devices cannot be changed, any position of the crankshaft cannot be machined, and some limitations are brought to the grinding work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a grinding device for crankshaft machining.

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

the grinding device for crankshaft machining comprises a base, wherein a plurality of support frames are fixedly installed in the base, a cleaning box is connected in the base in a sliding mode, first telescopic motors with output shafts vertically upward are fixedly installed at the top ends of the support frames, fixing frames are installed at the output shafts of the first telescopic motors in a connecting mode, a machine shell is fixedly installed at the top end of the base, a cross rod is fixedly installed on the inner wall of the top end of the machine shell, a groove is formed in the bottom of the cross rod, an electric screw is connected in the groove in a rotating mode, moving blocks are connected to the outer sides of the electric screw through threads, first rotating motors are fixedly installed at the bottoms of the moving blocks, second telescopic motors with output shafts vertically downward are fixedly installed at the bottoms of the first rotating motors, second rotating motors are installed at the output shafts of the second telescopic motors in a connecting mode, and cutting blades are connected to one sides of the second rotating motors, and one side of the cutting blade is connected with a sanding disc, and one side of the shell is connected with a side sliding door through a hinge.

Preferably, the support frame is designed to be a trapezoidal structure.

Preferably, the top end of the fixing frame is provided with an arc-shaped groove, and fastening rubber is laid in the groove.

Preferably, a dustproof pad is laid in the groove at the bottom of the cross rod.

Preferably, the mounting groove has been seted up to dull polish dish one side, and has fastening screw through threaded connection in the mounting groove, fastening screw passes through cutting blade and links to each other with the second rotating electrical machines, and sets up the through-hole with the fastening screw adaptation in second rotating electrical machines and the cutting blade.

Preferably, the side sliding door is made of brown transparent plastic, and a handle is fixedly mounted on the outer side of the side sliding door.

The utility model has the beneficial effects that: in the utility model, a second telescopic motor, a second rotating motor and a cutting blade can be used for cutting work and can be controlled by an electric screw rod and a moving block to move, the position can be conveniently adjusted, meanwhile, the cutting surface can be polished by matching the second rotating motor and a polishing disc, the second rotating motor, the cutting blade and the polishing disc are connected through fastening screws and are convenient to replace, the first rotating motor is used for adjusting the direction of the polishing disc, the crankshaft is supported by the first telescopic motor and a fixing frame and is fixed by fastening rubber, meanwhile, the first telescopic motor can control the fixing frame to lift, so that the fixing position is changed, the grinding work of any position of the crankshaft is convenient, the supporting frame not only plays a supporting role for the second telescopic motor, but also is convenient for enabling chips during grinding to fall into a cleaning box, so as to carry out the cleaning work, the side sliding door has both avoided the piece to sneak into in the middle of the air, is convenient for again observe grinding work, has the practicality.

Drawings

Fig. 1 is a front view of a grinding apparatus for crankshaft machining according to the present invention;

FIG. 2 is a schematic front view of a grinding apparatus for crankshaft machining according to the present invention;

FIG. 3 is a schematic structural diagram of a fixing frame of a grinding device for crankshaft machining according to the present invention;

fig. 4 is a schematic side view of a grinding disc in the grinding device for crankshaft machining according to the present invention.

In the figure: the automatic grinding machine comprises a base 1, a supporting frame 2, a cleaning box 3, a first telescopic motor 4, a fixed frame 5, a machine shell 6, a cross rod 7, an electric screw rod 8, a moving block 9, a first rotating motor 10, a second telescopic motor 11, a second rotating motor 12, a cutting blade 13, a grinding disc 14 and a side sliding door 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example (b): referring to fig. 1-4, a grinding device for crankshaft machining comprises a base 1, a plurality of support frames 2 are fixedly installed in the base 1, a cleaning box 3 is connected in the base 1 in a sliding manner, first telescopic motors 4 with output shafts vertically upward are fixedly installed at the top ends of the support frames 2, a fixed frame 5 is installed at the output shaft of each first telescopic motor 4 in a connecting manner, a casing 6 is fixedly installed at the top end of the base 1, a cross rod 7 is fixedly installed on the inner wall of the top end of the casing 6, a groove is formed in the bottom of the cross rod 7, an electric screw 8 is connected in the groove in a rotating manner, a moving block 9 is connected to the outer side of the electric screw 8 through threads, a first rotating motor 10 is fixedly installed at the bottom of the moving block 9, a second telescopic motor 11 with output shafts vertically downward is fixedly installed at the bottom of the first rotating motor 10, and a second rotating motor 12 is installed at the output shaft of the second telescopic motor 11 in a connecting manner, one side of the second rotating motor 12 is connected with a cutting blade 13, one side of the cutting blade 13 is connected with a sanding disc 14, and one side of the machine shell 6 is connected with a side sliding door 15 through a hinge.

Furthermore, the supporting frame 2 is designed to be a trapezoid structure.

Further, an arc-shaped groove is formed in the top end of the fixing frame 5, and fastening rubber is laid in the groove.

Furthermore, a dustproof pad is laid in a groove at the bottom of the cross rod 7.

Further, the mounting groove has been seted up to dull polish dish 14 one side, and has fastening screw through threaded connection in the mounting groove, and fastening screw passes through cutting blade 13 and links to each other with second rotating electrical machines 12, and sets up the through-hole with the fastening screw adaptation in second rotating electrical machines 12 and the cutting blade 13.

Further, the side sliding door 15 is made of brown transparent plastic, and a handle is fixedly installed on the outer side of the side sliding door 15.

The working principle is as follows: when in use, the side sliding door 15 needs to be opened, the crankshaft is placed in the fixed frame 5 for fixing, then the electric screw 8 is used for controlling the cutting blade 13 to move in a rotating way, when the mobile phone moves to the appointed place, the first telescopic motor 4 at the appointed place is descended and is supported by other first telescopic motors 4, then the second telescopic motor 11 is started, the cutting blade 13 is controlled to descend to be connected with the crankshaft, the cutting work is carried out, after the cutting is finished, descending a part of the first telescopic motor 4 to control the descending of the redundant crankshaft, controlling the cutting blade 13 to rotate by using the first rotating motor 10 to ensure that the grinding disc 14 is connected with the cutting surface, opening the second rotating motor 12 to control the grinding disc 14 to rotate, the crankshaft is polished, and scraps generated during grinding are blocked by the side sliding door 15 and fall into the cleaning box 3 along the support frame 2, so that the cleaning work is facilitated.

Those not described in detail in this specification are within the skill of the art.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, 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 implicitly indicating the 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 invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The grinding device for crankshaft machining comprises a base (1) and is characterized in that a plurality of support frames (2) are fixedly installed in the base (1), a cleaning box (3) is connected in the base (1) in a sliding mode, first telescopic motors (4) with output shafts vertically upward are fixedly installed at the top ends of the support frames (2), fixing frames (5) are installed on output shafts of the first telescopic motors (4) in a connecting mode, a shell (6) is fixedly installed at the top end of the base (1), a cross rod (7) is fixedly installed on the inner wall of the top end of the shell (6), grooves are formed in the bottoms of the cross rods (7), electric screw rods (8) are connected in the grooves in a rotating mode, moving blocks (9) are connected to the outer sides of the electric screw rods (8) through threads, first rotary motors (10) are fixedly installed at the bottoms of the moving blocks (9), second telescopic motors (11) with the output shafts vertically downward are fixedly installed at the bottoms of the first rotary motors (10), and the output shaft of the second telescopic motor (11) is provided with a second rotating motor (12), one side of the second rotating motor (12) is connected with a cutting blade (13), one side of the cutting blade (13) is connected with a sanding disc (14), and one side of the shell (6) is connected with a side sliding door (15) through a hinge.

2. Grinding device for the machining of crankshafts according to claim 1, characterised in that the supporting frame (2) is of trapezoidal structural design.

3. The grinding device for processing the crankshaft as claimed in claim 1, characterized in that the top end of the fixing frame (5) is provided with an arc-shaped groove, and fastening rubber is laid in the groove.

4. Grinding device for the machining of crankshafts according to claim 1, characterised in that the bottom recess of the crossbar (7) is lined with a dust-proof pad.

5. The grinding device for processing the crankshaft according to claim 1, wherein a mounting groove is formed in one side of the grinding disc (14), a fastening screw is connected to the mounting groove through a thread, the fastening screw is connected to the second rotating motor (12) through the cutting blade (13), and through holes matched with the fastening screw are formed in the second rotating motor (12) and the cutting blade (13).

6. The grinding device for processing the crankshaft as recited in claim 1, characterized in that the side sliding door (15) is made of brown transparent plastic, and a handle is fixedly arranged on the outer side of the side sliding door (15).