Crankshaft punching device

Abstract

The utility model discloses a crankshaft punching device, which belongs to the technical field of punching equipment, and comprises a crankshaft drilling combined machine tool and a drilling mechanism, the drilling mechanism is arranged in the crankshaft drilling combined machine tool, the drilling mechanism comprises a base, the top of the base is provided with a support frame, and the top of the support frame is provided with a punching mechanism; through the arrangement of the punching mechanism, the supporting mechanism, a first three-jaw chuck, a rotating shaft, an electric push rod and an arc-shaped limiting plate, in the using process, a crankshaft is fixed through cooperation of the supporting mechanism and the first three-jaw chuck, and after fixing is completed, the electric push rod is started through an external controller; according to the crankshaft perforating device, the moving end of the electric push rod drives the arc-shaped limiting plate to move to clamp and limit the rotating shaft, after limiting is completed, the crankshaft can be perforated through the perforating machine, meanwhile, shaking and deviation of the crankshaft in the perforating process can be avoided, the stability of the crankshaft during perforating is guaranteed, and the practicability of the perforating device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching equipment, in particular to a crankshaft punching device. Background Technique

[0002] The engine crankshaft is the main rotating part of the engine. After installing the connecting rod, it can receive the up and down movement of the connecting rod and become a cyclic movement. It is an important part of the engine. Its material is made of carbon structural steel or ductile iron. It has two important parts: the main journal and the connecting rod journal. The main journal is installed on the cylinder block, the connecting rod journal is connected to the big end hole of the connecting rod, and the small end hole of the connecting rod is connected to the cylinder piston. It is a typical crank-slider mechanism. The lubrication of the crankshaft mainly refers to the lubrication between the big end bearing bush of the connecting rod and the connecting rod journal of the crankshaft and the lubrication of the two fixed points at both ends. The rotation of the crankshaft is the power source of the engine. It is also the power source of the entire mechanical system. During the production process of the engine crankshaft, punching work needs to be carried out on the crankshaft, and a punching device will be used at this time.

[0003] CN212599075U discloses a two-way crankshaft punching device, including a device body and a first hydraulic telescopic rod. A first motor is arranged on the left side of the device body, and the first motor is connected to a first rotating shaft. The first rotating shaft penetrates the left side wall of the device body and is connected to a lead screw, and the lead screw is rotatably connected to the inner side of the device body. At the same time, a punching mechanism frame is arranged through the lead screw. The first hydraulic telescopic rod is arranged on the device body. The lower end of the sliding table is connected to the sliding rail, and a second hydraulic telescopic rod is arranged on the upper end surface of the sliding table. The inner side wall of the support table is rotatably connected to a hydraulic clamp. The second rotating shaft penetrates the right side wall inside the support table and is connected to a second motor, and the second motor is arranged on the right side of the support table. In the two-way crankshaft punching device, under the action of the first motor, the lead screw is driven to rotate through the first rotating shaft, so that the two punching mechanism frames move to both sides respectively to punch the crankshaft, improving the processing efficiency of the crankshaft.

[0004] There are still some problems in the above patent during use. For example, when fixing the crankshaft, the two ends of the crankshaft are clamped and fixed. In this way, when punching the crankshaft, the crankshaft is prone to shaking or deflection, resulting in the inability to smoothly carry out the punching work and reducing the practicability of the punching device. Therefore, we need to propose a crankshaft punching device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a crankshaft punching device, which has the advantage of being able to limit the position of the crankshaft during punching to prevent shaking and offset during punching, so as to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A crankshaft drilling device, comprising a crankshaft drilling combined machine tool and a drilling mechanism. The drilling mechanism is disposed inside the crankshaft drilling combined machine tool. The drilling mechanism includes a base. A support frame is installed on the top of the base. A drilling mechanism is disposed on the top of the support frame. A mounting plate is slidably connected to the top of the base. A support mechanism is disposed on one side of the top of the mounting plate. A fixing box is installed on the other side of the top of the mounting plate. A first three-jaw chuck is disposed on the top of one side of the fixing box. One side of the first three-jaw chuck is connected to a rotating shaft. One end of the rotating shaft penetrates through the fixing box and extends into the inner cavity of the fixing box. Teeth are equidistantly disposed on the surface of the rotating shaft and located in the inner cavity of the fixing box. Electric push rods are installed on the front and rear sides of the inner cavity of the fixing box. The moving ends of the electric push rods are connected to arc-shaped limiting plates. A driving mechanism is disposed on the top of the other side of the fixing box. A moving mechanism is disposed at the bottom of the inner cavity of the base.

[0007] Preferably, the drilling mechanism includes a hydraulic rod. The hydraulic rod is fixedly installed on the top of the support frame. The moving end of the hydraulic rod penetrates through the support frame and extends to the inner side of the support frame to be connected to a moving plate. A guide rail is installed at the bottom of the moving plate. A sliding seat is slidably connected to the surface of the guide rail. A drilling machine is installed at the bottom of the sliding seat.

[0008] Preferably, the support mechanism includes a support plate. The bottom of the support plate is connected to the top of the mounting plate. The top of one side of the support plate is rotatably connected to a second three-jaw chuck through a bearing seat.

[0009] Preferably, the driving mechanism includes a protective box. One side of the protective box is connected to the other side of the fixing box. A servo motor is installed in the inner cavity of the protective box. One end of the rotating shaft penetrates into the inner cavity of the protective box. The output shaft of the servo motor is connected to one end of the rotating shaft.

[0010] Preferably, the moving mechanism includes a displacement plate. The top of the displacement plate is connected to the bottom of the mounting plate. The bottom end of the displacement plate penetrates through the base and extends into the inner cavity of the base. A driving motor is installed on the back of the inner cavity of the base. The output shaft of the driving motor is connected to a lead screw. The front end of the lead screw penetrates through the displacement plate and extends outside the displacement plate to be rotatably connected to the front of the inner cavity of the base through a bearing seat.

[0011] Preferably, limiting blocks are installed at the front, rear, front, and rear ends of both sides of the moving plate. Limiting grooves are opened at the corresponding positions of the inner side of the support frame and located corresponding to the limiting blocks. The surface of the limiting block is slidably connected to the inner cavity of the limiting groove.

[0012] Preferably, an opening is opened at the top of the base and located corresponding to the displacement plate. The surface of the displacement plate is slidably connected to the inner cavity of the opening.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] With the arrangements of the punching mechanism, the supporting mechanism, the first three-jaw chuck, the rotating shaft, the electric push rod and the arc-shaped limiting plate, during use, the crankshaft is fixed through the cooperation of the supporting mechanism and the first three-jaw chuck. After the fixation is completed, the electric push rod is started by an external controller. The moving end of the electric push rod drives the arc-shaped limiting plate to move to clamp and limit the rotating shaft. After the limiting is completed, the crankshaft can be punched by a punching machine. At the same time, the shaking and deviation of the crankshaft during the punching process can be avoided, ensuring the stability of the crankshaft during punching and improving the practicability of the punching device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the utility model;

[0016] Figure 2 is a structural schematic diagram of the moving mechanism of the utility model;

[0017] Figure 3 is a structural schematic diagram of the rotating shaft of the utility model;

[0018] Figure 4 is a structural schematic diagram of the driving mechanism of the utility model.

[0019] Figure 5 is a structural schematic diagram of the punching mechanism of the utility model.

[0020] In the figure: 1, base; 2, support frame; 3, punching mechanism; 4, mounting plate; 5, support mechanism; 6, fixed box; 7, first three-jaw chuck; 8, rotating shaft; 9, electric push rod; 10, arc-shaped limiting plate; 11, driving mechanism; 12, moving mechanism; 31, hydraulic rod; 32, moving plate; 33, guide rail; 34, sliding seat; 35, punching machine; 51, support plate; 52, second three-jaw chuck; 111, protective box; 112, servo motor; 121, displacement plate; 122, driving motor; 123, lead screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, the present utility model provides a technical solution: a crankshaft drilling device, including a crankshaft drilling combined machine tool 13 and a drilling mechanism 14. The drilling mechanism 14 is arranged inside the crankshaft drilling combined machine tool 13. The drilling mechanism 14 includes a base 1. A support frame 2 is installed on the top of the base 1. A drilling mechanism 3 is arranged on the top of the support frame 2. A mounting plate 4 is slidably connected to the top of the base 1. A support mechanism 5 is arranged on one side of the top of the mounting plate 4. A fixed box 6 is installed on the other side of the top of the mounting plate 4. A first three-jaw chuck 7 is arranged on the top of one side of the fixed box 6. A rotating shaft 8 is connected to one side of the first three-jaw chuck 7. One end of the rotating shaft 8 penetrates through the fixed box 6 and extends into the inner cavity of the fixed box 6. Teeth are equidistantly arranged on the surface of the rotating shaft 8 and inside the fixed box 6. Electric push rods 9 are installed on both the front and rear sides of the inner cavity of the fixed box 6. The moving end of the electric push rod 9 is connected with an arc-shaped limiting plate 10. A driving mechanism 11 is arranged on the top of the other side of the fixed box 6. A moving mechanism 12 is arranged at the bottom of the inner cavity of the base 1;

[0023] Through the settings of the drilling mechanism 3, the support mechanism 5, the first three-jaw chuck 7, the rotating shaft 8, the electric push rod 9 and the arc-shaped limiting plate 10, during use, the crankshaft is fixed through the cooperation of the support mechanism 5 and the first three-jaw chuck 7. After the fixing is completed, the electric push rod 9 is started through an external controller. The moving end of the electric push rod 9 drives the arc-shaped limiting plate 10 to move to clamp and limit the rotating shaft 8. After the limiting is completed, the crankshaft can be drilled through the drilling machine 35. At the same time, it can avoid the shaking and deviation of the crankshaft during the drilling process, ensuring the stability of the crankshaft during drilling and improving the practicability of the drilling device.

[0024] Please refer to Figures 1-4 , the drilling mechanism 3 includes a hydraulic rod 31. The hydraulic rod 31 is fixedly installed on the top of the support frame 2. The moving end of the hydraulic rod 31 penetrates through the support frame 2 and extends to the inner side of the support frame 2 and is connected with a moving plate 32. A guide rail 33 is installed at the bottom of the moving plate 32. A sliding seat 34 is slidably connected to the surface of the guide rail 33. A drilling machine 35 is installed at the bottom of the sliding seat 34. By starting the hydraulic rod 31 through an external controller, the moving end of the hydraulic rod 31 drives the moving plate 32 to move. The moving plate 32 drives the guide rail 33 to move. The guide rail 33 drives the sliding seat 34 to move. The sliding seat 34 drives the drilling machine 35 to move. The moving drilling machine 35 can perform the drilling work on the crankshaft.

[0025] The support mechanism 5 includes a support plate 51. The bottom of the support plate 51 is connected to the top of the mounting plate 4. The top of one side of the support plate 51 is rotatably connected to a second three-jaw chuck 52 through a bearing seat, which is convenient for supporting the crankshaft. The driving mechanism 11 includes a protective box 111. One side of the protective box 111 is connected to the other side of the fixed box 6. A servo motor 112 is installed in the inner cavity of the protective box 111. One end of the rotating shaft 8 penetrates into the inner cavity of the protective box 111. The output shaft of the servo motor 112 is connected to one end of the rotating shaft 8. By starting the servo motor 112 through an external controller, the output shaft of the servo motor 112 drives the rotating shaft 8 to rotate, and the rotating shaft 8 can drive the first three-jaw chuck 7 and the crankshaft to rotate, which is convenient for adjusting the punching position of the crankshaft.

[0026] The moving mechanism 12 includes a displacement plate 121. The top of the displacement plate 121 is connected to the bottom of the mounting plate 4. The bottom end of the displacement plate 121 penetrates through the base 1 and extends into the inner cavity of the base 1. A driving motor 122 is installed on the back of the inner cavity of the base 1. The output shaft of the driving motor 122 is connected to a lead screw 123. The front end of the lead screw 123 penetrates through the displacement plate 121 and extends to the outside of the displacement plate 121 and is rotatably connected to the front of the inner cavity of the base 1 through a bearing seat. By starting the driving motor 122 through an external controller, the output shaft of the driving motor 122 drives the lead screw 123 to rotate. Since the lead screw 123 is threadedly connected to the displacement plate 121, the rotating lead screw 123 drives the displacement plate 121 to move, and the displacement plate 121 drives the mounting plate 4 to move, which is convenient for longitudinally adjusting the crankshaft and facilitating the punching work of the crankshaft.

[0027] Limit blocks are installed at the front and rear ends of both sides of the moving plate 32. Limiting grooves are opened at the corresponding positions of the inner side of the support frame 2 and located at the corresponding positions of the limit blocks. The surface of the limit block is slidably connected to the inner cavity of the limiting groove, which can limit the moving plate 32 and prevent the moving plate 32 from deflecting during movement, thereby affecting the normal punching work of the punching machine 35. An opening is opened at the top of the base 1 and located at the corresponding position of the displacement plate 121. The surface of the displacement plate 121 is slidably connected to the inner cavity of the opening, which is convenient for the displacement plate 121 to move in the inner cavity of the opening.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crankshaft drilling device, comprising a crankshaft drilling combination machine tool (13) and a drilling mechanism (14), wherein the drilling mechanism (14) is arranged inside the crankshaft drilling combination machine tool (13), and is characterized in that: The drilling mechanism (14) includes a base (1). A support frame (2) is installed on the top of the base (1). A drilling mechanism (3) is provided on the top of the support frame (2). A mounting plate (4) is slidably connected to the top of the base (1). A support mechanism (5) is provided on one side of the top of the mounting plate (4). A fixing box (6) is installed on the other side of the top of the mounting plate (4). A first three-jaw chuck (7) is provided on the top of one side of the fixing box (6). One side of the first three-jaw chuck (7) is connected to a rotating shaft (8). One end of the rotating shaft (8) penetrates through the fixing box (6) and extends into the inner cavity of the fixing box (6). Teeth are equidistantly arranged on the surface of the rotating shaft (8) and located in the inner cavity of the fixing box (6). Electric push rods (9) are installed on the front and rear sides of the inner cavity of the fixing box (6). The moving end of the electric push rod (9) is connected to an arc-shaped limiting plate (10). A driving mechanism (11) is provided on the top of the other side of the fixing box (6). A moving mechanism (12) is provided on the bottom of the inner cavity of the base (1).

2. The crankshaft drilling device according to claim 1, wherein: The drilling mechanism (3) includes a hydraulic rod (31). The hydraulic rod (31) is fixedly installed on the top of the support frame (2). The moving end of the hydraulic rod (31) penetrates through the support frame (2) and extends to the inner side of the support frame (2) and is connected to a moving plate (32). A guide rail (33) is installed on the bottom of the moving plate (32). A sliding seat (34) is slidably connected to the surface of the guide rail (33). A drilling machine (35) is installed on the bottom of the sliding seat (34).

3. The crankshaft drilling device according to claim 2, wherein: The support mechanism (5) includes a support plate (51). The bottom of the support plate (51) is connected to the top of the mounting plate (4). The top of one side of the support plate (51) is rotatably connected to a second three-jaw chuck (52) through a bearing seat.

4. The crankshaft drilling device according to claim 3, characterized in that: The driving mechanism (11) includes a protective box (111). One side of the protective box (111) is connected to the other side of the fixing box (6). A servo motor (112) is installed in the inner cavity of the protective box (111). One end of the rotating shaft (8) penetrates into the inner cavity of the protective box (111). The output shaft of the servo motor (112) is connected to one end of the rotating shaft (8).

5. The crankshaft punching device according to claim 4, characterized in that: The moving mechanism (12) includes a displacement plate (121). The top of the displacement plate (121) is connected to the bottom of the mounting plate (4). The bottom end of the displacement plate (121) penetrates through the base (1) and extends into the inner cavity of the base (1). A driving motor (122) is installed on the back of the inner cavity of the base (1). The output shaft of the driving motor (122) is connected to a lead screw (123). The front end of the lead screw (123) penetrates through the displacement plate (121) and extends to the outside of the displacement plate (121) and is rotatably connected to the front of the inner cavity of the base (1) through a bearing seat.

6. The crankshaft punching device according to claim 5, wherein: Limit blocks are installed at the front and rear ends of both sides of the moving plate (32). Limit grooves are opened at the corresponding positions of the inner side of the support frame (2) where the limit blocks are located. The surface of the limit block is slidably connected to the inner cavity of the limit groove.

7. The crankshaft punching device according to claim 6, characterized in that: An opening is provided at the top of the base (1) and corresponding to the displacement plate (121), and the surface of the displacement plate (121) is in sliding contact with the inner cavity of the opening.

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