CN207735859U - A kind of crankshaft rolling tool - Google Patents

Abstract

The utility model discloses a crankshaft rolling machine tool, which comprises a head frame, a tail frame, a gantry structure, a rolling pliers structure and a lifting mechanism; the rolling pliers structure includes an upper bracket and a lower bracket, and the upper The middle parts of the bracket and the lower bracket are movably connected together, and one end of the upper bracket and the lower bracket corresponding to the crankshaft is respectively provided with a corresponding upper pressure head and a lower pressure head, and a hydraulic cylinder is connected between the other ends; The hydraulic cylinder is connected to the hydraulic station through a proportional valve. The utility model has the advantages that the pressure can be changed in the rolling process, the processing efficiency is high, the rolling effect is good, and the positioning of the rolling pliers structure, rolling processing, changing the rolling pressure and the crankshaft clamp can be automatically realized. Install and other functions.

Description

A crankshaft rolling machine tool

technical field

The utility model relates to the field of crankshaft processing, in particular to a crankshaft rolling machine tool.

Background technique

The crankshaft is an important component in an engine. It bears the force transmitted by the connecting rod and converts it into torque through the crankshaft output and drives other accessories on the engine to work. The surface treatment process of the traditional crankshaft cannot meet the requirements of the engine, and the most prominent failure form of the crankshaft is fatigue fracture, which causes safety hazards. In order to improve the fatigue strength of the crankshaft, the surface treatment processes currently used include journal quenching, nitriding, shot peening, fillet rolling, etc., among which fillet rolling is the most effective means to improve the fatigue strength of the crankshaft. The existing crankshaft fillet rolling machine cannot change the pressure during the rolling process, the processing efficiency is low, and the rolling effect is poor.

Utility model content

The technical problem to be solved by the utility model is to provide a crankshaft rolling machine tool capable of changing the pressure during the rolling process.

The utility model solves the above-mentioned technical problems through the following technical solutions: a crankshaft rolling machine tool, comprising a headstock (1), a tailstock (2), a gantry structure (3), a rolling pliers structure (4) and a lift mechanism (5); said headstock (1) and tailstock (2) are provided with a corresponding crankshaft clamping device, and said crankshaft clamping device clamps the crankshaft horizontally on said headstock (1) and tailstock between the frames (2); the gantry structure (3) is arranged on one side of the head frame (1) and the tail frame (2); the rolling pliers structure (4) passes through the lifting mechanism (5 ) is connected on the beam of the gantry structure (3), suspended in the middle of the headstock (1) and the tailstock (2); the rolling pliers structure (4) includes an upper bracket (41) And the lower bracket (42), the middle part of the upper bracket (41) and the lower bracket (42) is movably connected together, and one end of the corresponding crankshaft of the upper bracket (41) and the lower bracket (42) is respectively A corresponding upper pressure head (43) and a lower pressure head (44) are provided, and a hydraulic cylinder (6) is connected between the other ends; the hydraulic cylinder (6) is connected to the hydraulic station (8) through a proportional valve (7) . The pressure can be changed during the rolling process by adjusting the proportional valve.

As an optimized technical solution, the headstock (1) is provided with a hydraulic chuck, and the tailstock (2) is provided with a top, and the hydraulic chuck and the top clamp the crankshaft on the headstock (1). ) and the tailstock (2). The efficiency of clamping the crankshaft is high.

As an optimized technical solution, the head frame (1) is driven to rotate by a speed-regulating motor. The performance of the motor is high.

As an optimized technical solution, the tailstock (2) is arranged on a moving guide rail, and the tailstock (2) is driven by a tailstock cylinder (9) to move in a direction approaching or away from the headstock (1). Easy to disassemble and replace the crankshaft.

As an optimized technical solution, the lifting mechanism (5) adopts a hydraulic support. The lift is stable.

As an optimized technical solution, the crankshaft rolling machine tool also includes a mobile bracket (10), which is movably connected to the beam of the gantry structure (3), and the mobile bracket (10) is moved along the The horizontal X-axis guide rail moves, and the X-axis guide rail is perpendicular to the length direction of the crossbeam of the gantry structure (3), and the lifting mechanism (5) is connected between the mobile bracket (10) and the rolling pliers structure (4 )between. The sending and returning of the rolling pliers structure is realized by moving the bracket.

As an optimized technical solution, the moving support (10) is driven to move by an air cylinder (11). It is easy to operate and stable in operation.

As an optimized technical solution, the crankshaft rolling machine is provided with a position sensing switch for detecting the position of the rolling pliers structure (4). The position sensing switch is used to detect whether the structure of the rolling pliers is in place.

As an optimized technical solution, the crankshaft rolling machine tool operates under the control of a numerical control system, the numerical control system is arranged in a system control cabinet (12), and the system control cabinet (12) is connected to an operation panel (13). Through system control, functions such as positioning of the rolling caliper structure, rolling processing, changing rolling pressure and crankshaft clamping are automatically realized. By setting system parameters on the operation panel, configure rolling process technical parameters.

The utility model has the advantages that the pressure can be changed during the rolling process, the processing efficiency is high, the rolling effect is good, and the positioning of the rolling pliers structure, rolling processing, changing the rolling pressure and the crankshaft clamp can be automatically realized. Install and other functions.

Description of drawings

Fig. 1 is a schematic front view of a crankshaft rolling machine tool of the present invention.

Fig. 2 is a schematic diagram of a left side view of the crankshaft rolling machine tool of the present invention.

Detailed ways

As shown in Figure 1-2, a crankshaft rolling machine tool includes a headstock 1, a tailstock 2, a gantry structure 3, a rolling pliers structure 4, a lifting mechanism 5, a hydraulic cylinder 6, a proportional valve 7, and a hydraulic station 8 , Tailstock cylinder 9, mobile support 10, cylinder 11, system control cabinet 12 and operation panel 13.

The headstock 1 and the tailstock 2 are arranged correspondingly. The headstock 1 is provided with a hydraulic chuck, and the tailstock 2 is provided with a top. The hydraulic chuck and the top clamp the crankshaft horizontally between the headstock 1 and the tailstock 2.

The headstock 1 is driven to rotate by a speed-regulating motor, the tailstock 2 is arranged on the moving guide rail, and the tailstock 2 is driven by the tailstock oil cylinder 9 to move in a direction approaching or away from the headstock 1.

The gantry structure 3 is arranged on one side of the headstock 1 and the tailstock 2, and the moving bracket 10 is movably connected to the beam of the gantry structure 3. The moving bracket 10 is driven by the cylinder 11 to move along the horizontal X-axis guide rail, and the X-axis guide rail is vertical In the length direction of the beam of the gantry structure 3, the lifting mechanism 5 is connected between the mobile bracket 10 and the rolling pliers structure 4, the lifting mechanism 5 adopts a hydraulic support, and the rolling pliers structure 4 is suspended on the head frame 1 and the tail frame 2 middle.

The rolling pliers structure 4 comprises an upper bracket 41 and a lower bracket 42, the middle part of the upper bracket 41 and the lower bracket 42 are movably connected together, and one end of the upper bracket 41 and the lower bracket 42 corresponding to the crankshaft is respectively provided with a corresponding Corresponding to the upper ram 43 and the lower ram 44 , a hydraulic cylinder 6 is connected between the other ends of the upper bracket 41 and the lower bracket 42 , and the hydraulic cylinder 6 is connected to a hydraulic station 8 through a proportional valve 7 .

The crankshaft rolling lathe is also provided with a position sensing switch for detecting the position of the rolling pliers structure 4 .

The crankshaft rolling machine tool runs under the control of a numerical control system. The numerical control system is arranged in a system control cabinet 12 connected to an operation panel 13 . Through system control, functions such as positioning of the rolling caliper structure, rolling processing, changing rolling pressure and crankshaft clamping are automatically realized. By setting system parameters on the operation panel, configure rolling process technical parameters.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (9)

1. A crankshaft rolling machine tool, characterized in that: comprise a headstock (1), a tailstock (2), a gantry structure (3), a rolling pliers structure (4) and a lifting mechanism (5); The frame (1) and the tailstock (2) are provided with a corresponding crankshaft clamping device, and the crankshaft clamping device horizontally clamps the crankshaft between the headstock (1) and the tailstock (2); The gantry structure (3) is arranged on one side of the headstock (1) and the tailstock (2); the rolling pliers structure (4) is connected to the gantry structure ( 3) on the beam, suspended in the middle of the headstock (1) and the tailstock (2); the rolling pliers structure (4) includes an upper bracket (41) and a lower bracket (42), The middle parts of the upper bracket (41) and the lower bracket (42) are movably connected together, and one end of the upper bracket (41) and the lower bracket (42) corresponding to the crankshaft is respectively provided with a corresponding upper pressure head (43) and the lower pressure head (44), and the other end is connected with a hydraulic cylinder (6); the hydraulic cylinder (6) is connected to the hydraulic station (8) through a proportional valve (7). 2. The crankshaft rolling machine tool according to claim 1, characterized in that: said headstock (1) is provided with a hydraulic chuck, said tailstock (2) is provided with a top, said hydraulic chuck and The top clamps the crankshaft between said headstock (1) and tailstock (2). 3. The crankshaft rolling machine tool according to claim 1, characterized in that: the head frame (1) is driven to rotate by a speed-regulating motor. 4. The crankshaft rolling machine tool according to claim 1, characterized in that: the tailstock (2) is arranged on a moving guide rail, and the tailstock (2) is driven by the tailstock cylinder (9) to approach or move away from The direction of the head frame (1) moves. 5. The crankshaft rolling machine tool according to claim 1, characterized in that: the lifting mechanism (5) adopts a hydraulic support. 6. The crankshaft rolling machine tool according to claim 1, characterized in that: the crankshaft rolling machine tool further comprises a moving bracket (10), and the moving bracket (10) is movably connected to the gantry structure (3) On the beam of the gantry structure (3), the moving bracket (10) moves along the horizontal X-axis guide rail, and the X-axis guide rail is perpendicular to the length direction of the beam of the gantry structure (3), and the lifting mechanism (5) is connected to the moving Between the support (10) and the rolling pliers structure (4). 7. The crankshaft rolling machine tool according to claim 6, characterized in that: the moving bracket (10) is driven to move by a cylinder (11). 8. The crankshaft rolling machine tool according to claim 1, characterized in that: the crankshaft rolling machine tool is provided with a position sensing switch for detecting the position of the rolling pliers structure (4). 9. The crankshaft rolling machine tool according to any one of claims 1-8, characterized in that: the crankshaft rolling machine tool is controlled and operated by a numerical control system, and the numerical control system is arranged in a system control cabinet (12), and the The system control cabinet (12) is connected with the operation panel (13).