Crankshaft oil duct drilling mechanism

Abstract

The utility model relates to the technical field of crankshaft machining, in particular to a crankshaft oil duct drilling mechanism which drives a crankshaft to move transversely through a transverse moving device, moves different areas needing to be drilled to an operation area of a drilling device and drives the crankshaft to rotate through an adjusting device. Different to-be-machined positions on the crankshaft are rotated to the position under the drilling device, the to-be-drilled area of the crankshaft is fixed in an auxiliary mode through the fixing device, the influence of the vibration amplitude of the crankshaft on the drilling precision in the drilling process is reduced, drilling machining is conducted through the drilling device, and the practicability of the device is improved; comprising a transverse moving device, an adjusting device, a fixing device and a drilling device, the adjusting device is installed on the transverse moving device, the fixing device is installed on the transverse moving device, and the drilling device is installed on the transverse moving device.

Description

Technical Field

[0001] This utility model relates to the technical field of crankshaft machining, and in particular to a crankshaft oil passage drilling mechanism. Background Technology

[0002] The holes on the engine crankshaft are oil passages. The lubrication of the friction pairs of moving parts such as the engine crankshaft, camshaft, and piston pin is a forced lubrication mode. That is, the engine oil pump draws oil from the bottom case and distributes it to each friction pair through the main oil passage, ensuring the lubrication, heat dissipation and cleaning of each friction pair.

[0003] The prior art Chinese utility model patent with application number CN202211529579.1 relates to a crankshaft oil passage drilling device, including a seat, a protrusion, a dovetail groove, a positioning plate, a conductive strip, a cylinder, a piston, a negative pressure chamber, and a drilling part, which can automatically position the crankshaft after the crankshaft is installed.

[0004] However, in actual use, the above-mentioned device cannot fix the drilling part of the slender crankshaft in a specific area. During the drilling process, the vibration of the crankshaft itself will affect the drilling accuracy. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a crankshaft oil passage drilling mechanism that uses a transverse movement device to move the crankshaft laterally, moving different areas that need to be drilled to the working area of ​​the drilling device. An adjustment device drives the crankshaft to rotate, thereby rotating different positions on the crankshaft to be processed directly below the drilling device. A fixing device is used to assist in fixing the areas of the crankshaft to be drilled, reducing the impact of the crankshaft's own vibration amplitude on the drilling accuracy during the drilling process. The drilling is performed by the drilling device, which improves the practicality of the device.

[0006] This utility model discloses a crankshaft oil passage drilling mechanism, comprising a transverse movement device, an adjustment device, a fixing device, and a drilling device. The adjustment device is mounted on the transverse movement device, the fixing device is mounted on the transverse movement device, and the drilling device is mounted on the transverse movement device. The transverse movement device drives the crankshaft to move laterally, moving different areas requiring drilling to the working area of ​​the drilling device. The adjustment device drives the crankshaft to rotate, thereby rotating different positions on the crankshaft to be processed directly below the drilling device. The fixing device provides auxiliary fixation for the areas of the crankshaft to be drilled, reducing the impact of the crankshaft's own vibration amplitude on the drilling accuracy during the drilling process. The drilling device performs drilling processing, improving the practicality of the device.

[0007] Preferably, the lateral movement device includes a frame, a first reducer, a first motor, a lead screw, lateral movement platforms, and a nut. The first reducer is mounted on the right end face of the frame, and the first motor is mounted on the first reducer. The lead screw is horizontally mounted inside the frame, and the output end of the first reducer is connected to the lead screw. The two sets of lateral movement platforms are connected to the lead screw through the nut. When the first motor is turned on, the power is transmitted to the lead screw through the first reducer, which drives the lead screw to rotate. This, in conjunction with the nut, drives the two sets of lateral movement platforms to move left and right simultaneously, moving different drilling positions of the crankshaft to the lower side of the drilling device, thus improving the practicality of the device.

[0008] Preferably, it also includes limiting optical rods. Two sets of limiting optical rods are horizontally installed inside the frame. The two sets of limiting optical rods are located on the front and rear sides of the lead screw, respectively. Both sets of limiting optical rods pass through the two sets of transverse platform bodies. The transverse movement of the transverse platform is limited by the two sets of limiting optical rods, which reduces the vibration amplitude of the transverse platform itself during the transverse movement and improves the practicality of the device.

[0009] Preferably, the adjusting device includes a support platform, a first hydraulic cylinder, a fixed push rod, and a three-jaw chuck. A transverse platform is provided on the upper surface of both sets of transverse platforms. A first hydraulic cylinder is installed on the left end face of the left support platform. The moving end of the first hydraulic cylinder extends through the support platform to the right end face of the left support platform and connects with the fixed push rod. A three-jaw chuck is provided on the right support platform. The crankshaft is fixed in position by the cooperation of the three-jaw chuck and the fixed push rod. By controlling the extension of the first hydraulic cylinder, the fixed push rod is moved laterally to accommodate crankshafts of different lengths. By driving the three-jaw chuck to rotate, the crankshaft is rotated to adjust the crankshaft with the opening located below the opening device, thus improving the practicality of the device.

[0010] Preferably, the fixing device includes a first electric cylinder, a lifting platform, a second electric cylinder, a front gripper, and a rear gripper. A set of first electric cylinders is installed at the front and rear of the upper end face of the frame, respectively. The moving end of the first electric cylinder is connected to the lifting platform. The second electric cylinder is installed on the outer side of the lifting platform. The moving ends of the two sets of second electric cylinders extend through the lifting platform to the inner side of the lifting platform. The front gripper and the rear gripper are respectively connected to the moving ends of the two sets of second electric cylinders. The lower parts of the front gripper and the rear gripper can overlap. The upper parts of the front gripper and the rear gripper... The upper part is shorter than the lower part. By controlling the extension of the first electric cylinder, it can adapt to the height position of different parts of the crankshaft. By controlling the extension of the two sets of second electric cylinders, the front and rear chucks are driven to assist in fixing the position of the crankshaft to be drilled, reducing the impact of the crankshaft's own vibration on the drilling accuracy during the drilling process. Due to the short upper length of the front and rear chucks, after the crankshaft is fixed, the upper part of the crankshaft to be drilled is exposed, and the drilling operation can be carried out directly without affecting the drilling device, thus improving the practicality of the device.

[0011] Preferably, the drilling device includes a gantry, a second hydraulic cylinder, a second reducer, a second motor, and a drill bit. The gantry is installed in the middle of the upper end face of the frame, and the second hydraulic cylinder is installed on the upper end face of the gantry. The moving end of the second hydraulic cylinder extends through the upper end face of the gantry into the interior of the gantry and connects to the second reducer. The second motor is installed on the second reducer, and the drill bit is installed on the output end of the second reducer. By controlling the extension of the second hydraulic cylinder, the drill bit is moved up and down. The second motor is turned on to transmit power to the drill bit through the second reducer, which drives the drill bit to rotate. The drill bit, in conjunction with the second hydraulic cylinder, performs drilling on the crankshaft, thus improving the practicality of the device.

[0012] Preferably, the device also includes an arc-shaped baffle, elastic ropes, and a plastic protective cover. An arc-shaped baffle is provided at the lower part of the support platform, and multiple sets of elastic ropes are connected between two sets of arc-shaped baffles. The plastic protective cover covers the multiple sets of elastic ropes. The arc-shaped baffle and elastic ropes provide auxiliary support for the plastic protective cover, so that the plastic protective cover can shield the metal debris that falls during processing, preventing the metal debris from affecting the normal movement of the traversing device. At the same time, the elastic ropes and the plastic protective cover have a certain degree of elasticity, which can adapt to the vibration of the equipment during processing or movement, reduce the impact on other parts of the device, and improve the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the transverse movement device drives the crankshaft to move laterally, moving different areas that need to be drilled to the working area of ​​the drilling device; the adjustment device drives the crankshaft to rotate, thereby rotating different positions on the crankshaft to be processed directly below the drilling device; the fixing device provides auxiliary fixation for the crankshaft to be drilled area, reducing the impact of the crankshaft's own vibration amplitude on the drilling accuracy during the drilling process; and the drilling device improves the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second isometric structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the third isometric structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the second cross-sectional structure of this utility model;

[0019] The following components are labeled in the attached diagram: 1. Frame; 2. First reducer; 3. First motor; 4. Lead screw; 5. Transverse platform; 6. Nut; 7. Limiting rod; 8. Support platform; 9. First hydraulic cylinder; 10. Fixed top rod; 11. Three-jaw chuck; 12. First electric cylinder; 13. Lifting platform; 14. Second electric cylinder; 15. Front gripper; 16. Rear gripper; 17. Gantry; 18. Second hydraulic cylinder; 19. Second reducer; 20. Second motor; 21. Drill bit; 22. Arc-shaped baffle; 23. Elastic rope; 24. Plastic protective cover. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0021] Example

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The adjusting device is installed on the transverse moving device, the fixing device is installed on the transverse moving device, and the drilling device is installed on the transverse moving device;

[0023] First, the crankshaft is positioned using a three-jaw chuck 11 and a fixed push rod 10. The extension of the first hydraulic cylinder 9 is controlled to move the fixed push rod 10 laterally to accommodate crankshafts of different lengths. The rotation of the three-jaw chuck 11 rotates the crankshaft, adjusting the crankshaft so that the drilled portion is located below the drilling device. Simultaneously, the first motor 3 is activated, transmitting power through the first reducer 2 to the lead screw 4, causing it to rotate. This, in conjunction with the nut 6, moves the two sets of transverse platforms 5 left and right simultaneously, shifting the different drilling sections of the crankshaft. The crankshaft is moved to the lower side of the drilling device. Then, the extension of the first electric cylinder 12 is controlled to adapt to the height position of different parts of the crankshaft. By controlling the extension of the two sets of second electric cylinders 14, the front chuck 15 and the rear chuck 16 are driven to fix the crankshaft to be drilled. Then, the extension of the second hydraulic cylinder 18 is controlled to drive the drill bit 21 to move up and down. The second motor 20 is turned on to transmit power to the drill bit 21 through the second reducer 19 to drive the drill bit 21 to rotate. The drill bit 21 cooperates with the second hydraulic cylinder 18 to perform drilling on the crankshaft.

[0024] The transverse movement device includes a frame 1, a first reducer 2, a first motor 3, a lead screw 4, a transverse movement platform 5, and a nut 6. The first reducer 2 is installed on the right end face of the frame 1, the first motor 3 is installed on the first reducer 2, the lead screw 4 is horizontally installed inside the frame 1, the output end of the first reducer 2 is connected to the lead screw 4, and the two sets of transverse movement platforms 5 are connected to the lead screw 4 through the nut 6.

[0025] It also includes limit light rods 7. Two sets of limit light rods 7 are horizontally installed inside the frame 1. The two sets of limit light rods 7 are located on the front and rear sides of the lead screw 4 respectively. Both sets of limit light rods 7 pass through the main body of the two sets of transverse platforms 5.

[0026] The adjustment device includes a support platform 8, a first hydraulic cylinder 9, a fixed top rod 10, and a three-jaw chuck 11. Both sets of transverse platforms 5 are provided on their upper surfaces. The first hydraulic cylinder 9 is installed on the left end of the left support platform 8. The moving end of the first hydraulic cylinder 9 passes through the support platform 8 and extends to the right end of the left support platform 8 to connect with the fixed top rod 10. The three-jaw chuck 11 is provided on the right support platform 8.

[0027] The fixing device includes a first electric cylinder 12, a lifting platform 13, a second electric cylinder 14, a front gripper 15, and a rear gripper 16. A set of first electric cylinders 12 is installed at the front and rear of the middle of the upper end face of the frame 1. The moving end of the first electric cylinder 12 is connected to the lifting platform 13. The second electric cylinder 14 is installed on the outer side of the lifting platform 13. The moving ends of the two sets of second electric cylinders 14 extend through the lifting platform 13 to the inner side of the lifting platform 13. The front gripper 15 and the rear gripper 16 are respectively connected to the moving ends of the two sets of second electric cylinders 14. The lower parts of the front gripper 15 and the rear gripper 16 can overlap. The upper length of the front gripper 15 and the rear gripper 16 is shorter than the lower length.

[0028] The drilling device includes a gantry 17, a second hydraulic cylinder 18, a second reducer 19, a second motor 20, and a drill bit 21. The gantry 17 is installed in the middle of the upper end face of the frame 1. The second hydraulic cylinder 18 is installed on the upper end face of the gantry 17. The moving end of the second hydraulic cylinder 18 extends through the upper end face of the gantry 17 and into the interior of the gantry 17 to connect with the second reducer 19. The second motor 20 is installed on the second reducer 19. The drill bit 21 is installed on the output end of the second reducer 19.

[0029] It also includes an arc-shaped baffle 22, elastic ropes 23 and plastic protective cloth 24. An arc-shaped baffle 22 is provided at the lower part of the support platform 8. Multiple sets of elastic ropes 23 are connected between the two sets of arc-shaped baffles 22. The plastic protective cloth 24 covers the multiple sets of elastic ropes 23.

[0030] The crankshaft is moved laterally by a transverse movement device, moving different areas that need to be drilled to the working area of ​​the drilling device. The crankshaft is rotated by an adjustment device, thereby rotating different positions on the crankshaft to be processed directly below the drilling device. The area to be drilled on the crankshaft is assisted and fixed by a fixing device, reducing the impact of the crankshaft's own vibration amplitude on the drilling accuracy during the drilling process. The drilling process is carried out by the drilling device, which improves the practicality of the device.

[0031] like Figures 1 to 5 As shown, this utility model discloses a crankshaft oil passage drilling mechanism. During operation, the crankshaft is first fixed in position by the cooperation of a three-jaw chuck 11 and a fixed push rod 10. The extension of the first hydraulic cylinder 9 is controlled to drive the fixed push rod 10 to move laterally to accommodate crankshafts of different lengths. The rotation of the three-jaw chuck 11 drives the crankshaft to rotate, adjusting the crankshaft so that the opening portion is located below the opening device. Simultaneously, the first motor 3 is activated, transmitting power through the first reducer 2 to the lead screw 4, causing the lead screw 4 to rotate. This, in conjunction with the nut 6, drives the two sets of transverse platforms 5 to move left and right simultaneously. The crankshaft is moved to the lower side of the drilling device for different drilling positions. Then, the extension of the first electric cylinder 12 is controlled to adapt to the height position of different parts of the crankshaft. By controlling the extension of the two sets of second electric cylinders 14, the front chuck 15 and the rear chuck 16 are driven to fix the crankshaft to be drilled. Then, the extension of the second hydraulic cylinder 18 is controlled to drive the drill bit 21 to move up and down. The second motor 20 is turned on to transmit power to the drill bit 21 through the second reducer 19 to drive the drill bit 21 to rotate. The drill bit 21, in conjunction with the second hydraulic cylinder 18, can then perform drilling on the crankshaft.

[0032] The second hydraulic cylinder 18, first electric cylinder 12, second electric cylinder 14, first reducer 2, first motor 3, three-jaw chuck 11, first hydraulic cylinder 9, second reducer 19 and second motor 20 of the crankshaft oil passage drilling mechanism of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A crankshaft oil gallery drilling mechanism; characterized by, The device comprises a horizontal moving device, an adjusting device, a fixing device and a drilling device.

2. A crankshaft gallery drilling mechanism as claimed in claim 1, wherein, The horizontal moving device comprises a frame (1), a first reducer (2), a first motor (3), a screw rod (4), a horizontal moving platform (5) and a nut (6), the right end surface of the frame (1) is provided with the first reducer (2), the first reducer (2) is provided with the first motor (3), the screw rod (4) is horizontally arranged in the frame (1), the output end of the first reducer (2) is connected with the screw rod (4), and two groups of horizontal moving platforms (5) are connected with the screw rod (4) through the nuts (6).

3. A crankshaft gallery drilling mechanism as claimed in claim 2, wherein, The device further comprises a limiting light rod (7), two groups of limiting light rods (7) are horizontally arranged in the frame (1), and the two groups of limiting light rods (7) are respectively located on the front and back sides of the screw rod (4) and pass through the main bodies of the two groups of horizontal moving platforms (5).

4. A crankshaft gallery drilling mechanism as claimed in claim 3, wherein, The adjusting device comprises a support table (8), a first hydraulic cylinder (9), a fixed top rod (10) and a three-jaw chuck (11), the upper end surfaces of the two groups of horizontal moving platforms (5) are provided with the horizontal moving platforms (5), the left end surface of the left support table (8) is provided with the first hydraulic cylinder (9), the moving end of the first hydraulic cylinder (9) extends to the right end surface of the left support table (8) through the support table (8) and is connected with the fixed top rod (10), and the right support table (8) is provided with the three-jaw chuck (11).

5. A crankshaft gallery drilling mechanism as claimed in claim 4, wherein, The fixing device comprises a first electric cylinder (12), a lifting platform (13), a second electric cylinder (14), a front clamping jaw (15) and a rear clamping jaw (16), one group of first electric cylinders (12) is arranged on the upper end surface of the frame (1) in the middle part, the moving end of the first electric cylinder (12) is connected with the lifting platform (13), the outer side surface of the lifting platform (13) is provided with the second electric cylinder (14), the moving ends of the two groups of second electric cylinders (14) extend to the inner side of the lifting platform (13) through the lifting platform (13), the front clamping jaw (15) and the rear clamping jaw (16) are respectively connected with the moving ends of the two groups of second electric cylinders (14), the lower parts of the front clamping jaw (15) and the rear clamping jaw (16) can be staggered and overlapped, and the upper parts of the front clamping jaw (15) and the rear clamping jaw (16) are shorter than the lower parts.

6. A crankshaft gallery drilling mechanism as claimed in claim 5, wherein, The drilling device comprises a portal frame (17), a second hydraulic cylinder (18), a second reducer (19), a second motor (20) and a drill bit (21), the upper end surface of the frame (1) is provided with the portal frame (17), the upper end surface of the portal frame (17) is provided with the second hydraulic cylinder (18), the moving end of the second hydraulic cylinder (18) extends to the inside of the portal frame (17) through the upper end surface of the portal frame (17) and is connected with the second reducer (19), the second reducer (19) is provided with the second motor (20), and the output end of the second reducer (19) is provided with the drill bit (21).

7. A crankshaft gallery drilling mechanism as claimed in claim 6, wherein, It also includes an arc-shaped baffle (22), elastic ropes (23) and a plastic protective cloth (24). The lower part of the support platform (8) is provided with an arc-shaped baffle (22), and multiple sets of elastic ropes (23) are connected between the two sets of arc-shaped baffles (22). The plastic protective cloth (24) covers the multiple sets of elastic ropes (23).

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