Crankshaft machining sleeking device

Abstract

The utility model discloses a crankshaft machining sleeking device which comprises a frame which is a stainless steel frame, a guide rail track is arranged at the rear end of the upper surface of the frame, the upper end of the guide rail track is in sliding connection with the rear side of a sliding frame, and the crankshaft machining sleeking device further comprises a three-jaw clamp and a sleeking mechanism. The three-jaw clamp comprises a cylinder, clamping jaws and rotating seats, the cylinder is rotationally connected into an opening in the left side face of the frame, the rotating seats which are evenly distributed are arranged on the right side of the outer surface of the cylinder, and the clamping jaws are rotationally connected into the rotating seats respectively; the sleeking mechanism comprises an upper baffle, a vertical shaft, a spring, a lower baffle and a sleeking cutter, the vertical shaft is connected to the rear end of the sliding frame in a sliding mode, the vertical shaft penetrates through a strip-shaped opening in the upper end of the frame, the device for machining and sleeking the crankshaft can conduct machining and sleeking treatment on the journal and the side face of the crankshaft at the same time, and therefore the labor cost input during machining and sleeking is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine crankshaft processing, in particular to a crankshaft processing and finishing device. Background Technique

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted by the connecting rod, converts it into torque and outputs it through the crankshaft to drive other accessories on the engine. The crankshaft is jointly affected by the centrifugal force of the rotating mass, the gas inertia force that changes periodically, and the reciprocating inertia force, so that the crankshaft bears the action of bending and torsional loads. Therefore, it is required that the crankshaft has sufficient strength and stiffness, the journal surface needs to be wear-resistant, work evenly, and have good balance. Therefore, it is particularly important to have a good crankshaft processing and finishing device.

[0003] The existing crankshaft processing and finishing usually carry out the final dimension processing of the crankshaft through crankshaft abrasive belt finishing.

[0004] There are the following problems in using the crankshaft abrasive belt for crankshaft finishing: Sometimes the crankshaft is not fixed firmly, and the protruding part on the side of the crankshaft and the crankshaft journal cannot be processed simultaneously, resulting in a relatively high labor cost during processing. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects, provide a crankshaft processing and finishing device, in which the crankshaft is fixed firmly, the protruding part on the side of the crankshaft and the crankshaft journal can be processed simultaneously, and the labor cost invested during processing can be reduced, and the problems in the background technique can be effectively solved.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A crankshaft processing and finishing device, including a frame, the frame is a stainless steel frame, a guide rail track is provided at the rear end of the upper surface of the frame, and the upper end of the guide rail track is slidably connected to the rear side of the sliding frame. It also includes a three-jaw chuck and a finishing mechanism;

[0007] Three-jaw chuck: It includes a cylinder, a jaw and a rotating seat. The cylinder is rotatably connected to the opening on the left side of the frame. Uniformly distributed rotating seats are provided on the outer surface of the right side of the cylinder, and jaws are respectively rotatably connected to the inside of the rotating seats;

[0008] Finishing mechanism: It includes an upper baffle, a vertical shaft, a spring, a lower baffle and a finishing tool. The vertical shaft is slidably connected to the rear end of the sliding frame, the vertical shaft passes through the strip-shaped opening at the upper end of the frame, a lower baffle is provided at the bottom end of the vertical shaft, a finishing tool is provided at the bottom end of the lower baffle, a spring is provided between the upper end of the lower baffle and the bottom surface of the sliding frame, the spring is sleeved on the outside of the vertical shaft, and an upper baffle is provided at the upper end of the vertical shaft, which can fix the crankshaft more firmly and can simultaneously process and finish the journal and the side of the crankshaft, thereby reducing the labor cost invested in processing and finishing the crankshaft.

[0009] Furthermore, the three-jaw chuck further includes a push-pull handle, a push rod, a bolt, a first helical gear, a connecting rod, and a support. The push rod is slidably connected to the inside of the cylinder. Uniformly distributed supports are provided on the right side of the outer surface of the push rod. Connecting rods are rotatably connected to the inside of each support. The outer ends of the connecting rods are rotatably connected to the middle parts of the radially corresponding jaws. A push-pull handle is provided at the left end of the push rod. A bolt is threadedly connected to the threaded hole on the left side of the outer surface of the cylinder. The inner end of the bolt is fitted and installed with the outer surface of the push rod. A first helical gear is fixedly sleeved on the outer surface of the cylinder, which can make the crankshaft be fixed more firmly during machining and finishing.

[0010] Furthermore, a second fixed seat is fixedly connected to the left side surface of the frame. A first motor is provided on the left side of the second fixed seat. A second helical gear is provided at the upper end of the output shaft of the first motor. The second helical gear is meshed with the first helical gear. The input end of the first motor is electrically connected to the output end of an external controller, so that the finishing device can work normally.

[0011] Furthermore, the finishing mechanism further includes a diversion pipe. The diversion pipe is provided on the outer surface of the sliding frame. The diversion pipe passes through the strip-shaped opening. The bottom end of the diversion pipe is located directly above the finishing tool, which can prevent the temperature of the finishing tool from being too high during work.

[0012] Furthermore, support platforms are respectively provided at the left and right ends of the front end of the upper surface of the frame. A lead screw is rotatably connected between the two support platforms. The middle part of the lead screw is rotatably connected to the front end of the sliding frame. A second motor is provided on the right side of the upper surface of the frame. The output shaft of the second motor is fixedly connected to the right end of the lead screw. The input end of the second motor is electrically connected to the output end of an external controller, which can control the finishing mechanism to move left and right.

[0013] Furthermore, a first fixed seat is rotatably connected to the right inner wall of the frame. A fastening screw is threadedly connected to the outer side surface of the first fixed seat. The central axes of the first fixed seat, the push rod, and the cylinder coincide with each other, which can make the crankshaft be fixed more firmly during machining and finishing and make the machining and finishing process safer.

[0014] Furthermore, a waste residue discharge port is provided at the center of the bottom end of the frame. The waste residue discharge port extends to the front side of the frame. Smooth inclined surfaces communicating with the waste residue discharge port are respectively provided on the left and right sides of the bottom end of the frame. A chute is provided at the upper end of the front side surface of the frame. Glass doors are slidably connected to the front and rear ends of the chute respectively. Handles are provided on the front sides of the glass doors. A protective net is fixedly connected to the rear surface of the frame by screws, which can collect waste materials more conveniently and protect the staff at the same time.

[0015] Furthermore, a coolant pump is provided at the upper end of the frame. The liquid outlet of the coolant pump is communicated with the upper end of the diversion pipe through a hose. The input end of the coolant pump is electrically connected to the output end of an external controller to realize the timely pumping of the coolant.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: The crankshaft processing and finishing device of the present utility model has the following advantages:

[0017] 1. Push the push-pull handle to the right by hand, so that the push rod pushes the connecting rod through the support, opening the clamping jaws. Then place the other end of the crankshaft in the middle of the clamping jaws, and then pull the push-pull handle, so that the push rod pulls the connecting rod through the support, closing the clamping jaws, fixing one end of the crankshaft. Then fix the push rod at the center of the cylinder through bolts, so that the crankshaft can be better fixed in the processing and finishing mechanism during processing and finishing, and the fixing is more reliable.

[0018] 2. After installing the crankshaft, turn on the second motor to make the finishing mechanism move left and right at the upper end of the frame through the lead screw until the lower end of the finishing tool fits the crankshaft journal. Then, after fitting, start the first motor. The first motor drives the second helical gear to rotate, and the second helical gear drives the first helical gear to rotate, so that the three-jaw chuck rotates, and then the crankshaft rotates. Through the friction between the crankshaft and the finishing tool, the crankshaft is processed and finished, and the journal and side surface of the crankshaft can be processed simultaneously, reducing the labor cost input during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0021] Figure 3 is a schematic enlarged structural diagram at position A of the present utility model.

[0022] In the figure: 1 frame, 2 coolant pump, 3 first motor, 4 second motor, 5 lead screw, 6 three-jaw chuck, 61 push-pull handle, 62 push rod, 63 bolt, 64 cylinder, 65 first helical gear, 66 connecting rod, 67 clamping jaw, 68 rotating seat, 69 support, 7 finishing mechanism, 71 upper baffle, 72 vertical shaft, 73 diversion pipe, 74 spring, 75 lower baffle, 76 finishing tool, 8 second helical gear, 9 waste residue discharge port, 10 smooth inclined surface, 11 first fixing seat, 12 fastening screw, 13 mounting seat, 14 guide rail track, 15 sliding frame, 16 hose, 17 glass door, 18 second fixing seat, 19 handle, 20 protective net. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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 of 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.

[0024] Please refer to Figures 1-3 In this embodiment, a technical solution is provided: a crankshaft machining and finishing device, including a frame 1. The frame 1 is a stainless steel frame. At the rear end of the upper surface of the frame 1, there is a guide rail track 14. The upper end of the guide rail track 14 is slidably connected to the rear side of a sliding frame 15. At the center of the bottom end of the frame 1, there is a waste residue discharge port 9, which extends to the front side of the frame 1. On the left and right sides of the bottom end of the frame 1, there are smooth inclined surfaces 10 communicating with the waste residue discharge port 9 respectively. At the upper end of the front side of the frame 1, there is a chute, and glass doors 17 are slidably connected to the front and rear ends of the chute respectively. Handles 19 are provided on the front sides of the glass doors 17. A protective net 20 is fixedly connected to the rear surface of the frame 1 by screws. Mounting seats 13 are provided at the four corners of the lower end of the frame 1. When crankshaft machining and finishing are required, the staff first installs the machining and finishing device at a specified position through the mounting seats 13, and then opens the glass doors 17 by pulling the handles 19. It also includes a three-jaw chuck 6 and a finishing mechanism 7;

[0025] Three-jaw chuck 6: It includes a cylinder 64, clamping jaws 67 and a rotating seat 68. The cylinder 64 is rotatably connected to the opening on the left side of the frame 1. On the right side of the outer surface of the cylinder 64, there are evenly distributed rotating seats 68. The inner parts of the rotating seats 68 are respectively rotatably connected to the clamping jaws 67. The three-jaw chuck 6 also includes a push-pull handle 61, a push rod 62, a bolt 63, a first helical gear 65, a connecting rod 66 and a support 69. The push rod 62 is slidably connected to the inside of the cylinder 64. On the right side of the outer surface of the push rod 62, there are evenly distributed supports 69. The inner parts of the supports 69 are respectively rotatably connected to the connecting rods 66. The outer ends of the connecting rods 66 are respectively rotatably connected to the middle parts of the radially corresponding clamping jaws 67. A push-pull handle 61 is provided at the left end of the push rod 62. The bolt 63 is threadedly connected to the threaded hole on the left side of the outer surface of the cylinder 64, and the inner end of the bolt 63 is fitted and installed with the outer surface of the push rod 62. A first helical gear 65 is fixedly sleeved on the outer surface of the cylinder 64. A second fixed seat 18 is fixedly connected to the left side of the frame 1. A first motor 3 is provided on the left side of the second fixed seat 18. At the upper end of the output shaft of the first motor 3, there is a second helical gear 8, and the second helical gear 8 is meshed with the first helical gear 65. The input end of the first motor 3 is electrically connected to the output end of an external controller. A first fixed seat 11 is rotatably connected to the right inner wall of the frame 1. A fastening screw 12 is threadedly connected to the outer side of the first fixed seat 11. The central axes of the first fixed seat 11, the push rod 62 and the cylinder 64 coincide with each other. Then, one end of the crankshaft to be finished is clamped in the first fixed seat 11, and then this end of the crankshaft is fixed by the fastening screw 12. Then, push the push-pull handle 61 to the right by hand, so that the push rod 62 pushes the connecting rod 66 through the support 69, so that the clamping jaws 67 open. Then, place the other end of the crankshaft in the middle of the clamping jaws 67, and then pull the push-pull handle 61, so that the push rod 62 pulls the connecting rod 66 through the support 69, so that the clamping jaws 67 close, and this end of the crankshaft is fixed. Then, fix the push rod 62 at the center of the cylinder 64 through the bolt 63;

[0026] Finishing mechanism 7: It includes an upper baffle 71, a vertical shaft 72, a spring 74, a lower baffle 75 and a finishing tool 76. The vertical shaft 72 is slidably connected to the rear end of the sliding frame 15. The vertical shaft 72 passes through the strip-shaped opening at the upper end of the frame 1. A lower baffle 75 is provided at the bottom end of the vertical shaft 72. A finishing tool 76 is provided at the bottom end of the lower baffle 75. A spring 74 is provided between the upper end of the lower baffle 75 and the bottom surface of the sliding frame 15. The spring 74 is sleeved outside the vertical shaft 72. An upper baffle 71 is provided at the upper end of the vertical shaft 72. The finishing mechanism 7 further includes a diversion pipe 73. The diversion pipe 73 is provided on the outer surface of the sliding frame 15. The diversion pipe 73 passes through the strip-shaped opening. The bottom end of the diversion pipe 73 is located directly above the finishing tool 76. A coolant pump 2 is provided at the upper end of the frame 1. The liquid outlet of the coolant pump 2 is connected to the upper end of the diversion pipe 73 through a hose 16. The input end of the coolant pump 2 is electrically connected to the output end of an external controller. After installing the crankshaft, turn on the second motor 4 to make the finishing mechanism 7 move left and right on the upper end of the frame 1 through the lead screw 5 until the lower end of the finishing tool 76 fits against the crankshaft journal. After fitting, first turn on the coolant pump 2 to make the coolant flow through the finishing tool through the diversion pipe 73, and then the first motor 3 can be started. The first motor 3 drives the second helical gear 8 to rotate. The second helical gear 8 drives the first helical gear 65 to rotate, so that the three-jaw chuck 8 rotates, and then the crankshaft rotates. Through the friction between the crankshaft and the finishing tool 76, the crankshaft is processed and finished.

[0027] The working principle of a crankshaft processing and finishing device provided by the present utility model is as follows: When crankshaft processing and finishing are required, the staff first installs the processing and finishing device at a designated position through the mounting seat 13, then opens the glass door 17 by pulling the handle 19, then clamps one end of the crankshaft to be finished in the first fixed seat 11, and then tightens and fixes this end of the crankshaft through the fastening screw 12. Then push the push-pull handle 61 to the right by hand, so that the push rod 62 pushes the connecting rod 66 through the support 69 to open the clamping jaw 67, then place the other end of the crankshaft in the middle of the clamping jaw 67, and then pull the push-pull handle 61 to make the push rod 62 pull the connecting rod 66 through the support 69 to close the clamping jaw 67 to fix this end of the crankshaft. Then fix the push rod 62 at the center of the cylinder 64 through the bolt 63. After installing the crankshaft, turn on the second motor 4 to make the finishing mechanism 7 move left and right on the upper end of the frame 1 through the lead screw 5 until the lower end of the finishing tool 76 fits against the crankshaft journal. After fitting, first turn on the coolant pump 2 to make the coolant flow through the finishing tool through the diversion pipe 73, and then the first motor 3 can be started. The first motor 3 drives the second helical gear 8 to rotate. The second helical gear 8 drives the first helical gear 65 to rotate, so that the three-jaw chuck 8 rotates, and then the crankshaft rotates. Through the friction between the crankshaft and the finishing tool 76, the crankshaft is processed and finished.

[0028] It should be noted that, in the above embodiments, the first motor 3 can be selected as Y180L-615, the second motor 4 can be selected as SM3L-042A1BDV servo motor, and the external controller controls the operation of the first motor 3 and the second motor 4 by using the methods commonly used in the prior art.

[0029] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A crankshaft machining and finishing device, comprising a frame (1), the frame (1) being a stainless steel frame, and a guide rail track (14) being provided at the rear end of the upper surface of the frame (1), the upper end of the guide rail track (14) being slidably connected to the rear side of a sliding carriage (15), characterized in that: It also includes a three-jaw chuck (6) and a finishing mechanism (7); Three-jaw chuck (6): It includes a cylinder (64), clamping jaws (67) and a rotating base (68). The cylinder (64) is rotatably connected to the opening on the left side of the frame (1). The outer surface of the right side of the cylinder (64) is provided with evenly distributed rotating bases (68). The inner parts of the rotating bases (68) are respectively rotatably connected with clamping jaws (67); Finishing mechanism (7): It includes an upper baffle (71), a vertical shaft (72), a spring (74), a lower baffle (75) and a finishing tool (76). The vertical shaft (72) is slidably connected to the rear end of the sliding frame (15). The vertical shaft (72) passes through the strip-shaped opening at the upper end of the frame (1). The bottom end of the vertical shaft (72) is provided with a lower baffle (75). The bottom end of the lower baffle (75) is provided with a finishing tool (76). A spring (74) is arranged between the upper end of the lower baffle (75) and the bottom surface of the sliding frame (15). The spring (74) is sleeved outside the vertical shaft (72). The upper end of the vertical shaft (72) is provided with an upper baffle (71).

2. The crankshaft machining and finishing device according to claim 1, wherein: The three-jaw chuck (6) also includes a push-pull handle (61), a push rod (62), a bolt (63), a first helical gear (65), a connecting rod (66) and a support (69). The push rod (62) is slidably connected to the inside of the cylinder (64). The outer surface of the right side of the push rod (62) is provided with evenly distributed supports (69). The inner parts of the supports (69) are respectively rotatably connected with connecting rods (66). The outer ends of the connecting rods (66) are respectively rotatably connected to the middle parts of the radially corresponding clamping jaws (67). The left end of the push rod (62) is provided with a push-pull handle (61). The bolt (63) is threadedly connected to the threaded hole on the left side of the outer surface of the cylinder (64). The inner end of the bolt (63) is fitted and installed with the outer surface of the push rod (62). The outer surface of the cylinder (64) is fixedly sleeved with a first helical gear (65).

3. A crankshaft machining and finishing device according to claim 2, characterized in that: A second fixed seat (18) is fixedly connected to the left side of the frame (1). A first motor (3) is arranged on the left side of the second fixed seat (18). The upper end of the output shaft of the first motor (3) is provided with a second helical gear (8). The second helical gear (8) is meshed and connected with the first helical gear (65). The input end of the first motor (3) is electrically connected to the output end of an external controller.

4. A crankshaft machining and finishing device according to claim 1, characterized in that: The finishing mechanism (7) also includes a diversion pipe (73). The diversion pipe (73) is arranged on the outer surface of the sliding frame (15). The diversion pipe (73) passes through the strip-shaped opening. The bottom end of the diversion pipe (73) is located directly above the finishing tool (76).

5. A crankshaft machining and finishing device according to claim 1, characterized in that: On the front end of the upper surface of the frame (1), support platforms are respectively arranged at the left and right ends. A lead screw (5) is rotatably connected between the two support platforms. The middle part of the lead screw (5) is rotatably connected to the front end of the sliding frame (15). A second motor (4) is arranged on the right side of the upper surface of the frame (1). The output shaft of the second motor (4) is fixedly connected to the right end of the lead screw (5). The input end of the second motor (4) is electrically connected to the output end of an external controller.

6. The crankshaft machining and finishing device according to claim 2, characterized in that: A first fixed seat (11) is rotatably connected to the right inner wall of the frame (1). A fastening screw (12) is threadedly connected to the outer side surface of the first fixed seat (11). The central axes of the first fixed seat (11), the push rod (62) and the cylinder (64) coincide with each other.

7. A crankshaft machining and finishing device according to claim 1, characterized in that: A waste residue discharge port (9) is provided at the center of the bottom end of the frame (1), and the waste residue discharge port (9) extends to the front side of the frame (1). Smooth inclined surfaces (10) communicating with the waste residue discharge port (9) are respectively provided on the left and right sides of the bottom end of the frame (1). A chute is provided at the upper end of the front side surface of the frame (1), and glass doors (17) are respectively slidably connected to the front and rear ends of the chute. Handles (19) are provided on the front sides of the glass doors (17). A protective net (20) is fixedly connected to the rear surface of the frame (1) by screws.

8. A crankshaft machining and finishing device according to claim 1, characterized in that: Mounting seats (13) are respectively provided at the four corners of the lower end of the frame (1).

9. A crankshaft machining and finishing device according to claim 4, characterized in that: A coolant pump (2) is provided at the upper end of the frame (1). The liquid outlet of the coolant pump (2) is communicated with the upper end of a diversion pipe (73) through a hose (16). The input end of the coolant pump (2) is electrically connected to the output end of an external controller.

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