Turnover mechanism for engine crankshaft connecting rod machining

Abstract

The utility model belongs to the technical field of crankshaft connecting rod machining, and particularly relates to an overturning mechanism for engine crankshaft connecting rod machining, which comprises an equipment body with a machining position at the top, a rotatable frame is transversely arranged in the machining position, and two clamping mechanisms are symmetrically arranged in the frame. A clamping space used for clamping a crankshaft connecting rod is formed between the two clamping mechanisms, a liftable supporting plate is arranged below the frame and can abut against the bottom of the crankshaft connecting rod in a lifting mode, and the crankshaft is horizontally placed in the clamping space based on lifting. According to the device, the liftable supporting plate is additionally arranged, the crankshaft connecting rod can be horizontally supported through the supporting plate before being clamped, the side face of the crankshaft connecting rod can be conveniently located on the machining horizontal plane, and the machining precision of the turning face of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of crankshaft connecting rod processing technology, specifically relating to a flipping mechanism for processing engine crankshaft connecting rods. Background Technology

[0002] When machining the engine crankshaft connecting rod, both sides need to be machined. A flipping mechanism is required during the machining process. The flipping mechanism can drive the crankshaft connecting rod to flip over, making it easier for the equipment to flip the crankshaft connecting rod for machining.

[0003] In the Chinese utility model patent with patent number CN202320706023.9, entitled "A Tilting Mechanism for Machining Engine Crankshaft Connecting Rods", the frame can drive the workpiece to rotate under the cooperation of the motor and the rotating shaft, so that both sides of the workpiece can be processed. Through the loosening of the sleeve, the threaded rod can drive the moving plate to move and clamp under the cooperation of the slide and the slide groove, so that workpieces of different specifications can be clamped and fixed. However, since the existing equipment clamps and fixes the crankshaft connecting rod at the top, and the equipment does not have a device for planar positioning of the crankshaft connecting rod, the crankshaft connecting rod will be deflected when clamped, thus affecting the machining accuracy of the crankshaft connecting rod in the later stage. Summary of the Invention

[0004] The purpose of this utility model is to provide a flipping mechanism for machining engine crankshaft connecting rods, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flipping mechanism for machining engine crankshaft connecting rods, comprising: a device body with a machining position at the top, a rotatable frame arranged laterally in the machining position, two clamping mechanisms symmetrically arranged in the frame, a clamping space for clamping the crankshaft connecting rod formed between the two clamping mechanisms, and a liftable tray arranged below the frame, the tray being liftable and abutting against the bottom of the crankshaft connecting rod, thereby allowing the crankshaft connecting rod to be horizontally placed in the clamping space based on the lifting mechanism.

[0006] Preferably, the top of the device body is also provided with a lifting component for driving the pallet to rise and fall. The lifting component includes a rotatable second screw and two screw sleeves sleeved on the second screw. The two screw sleeves are respectively provided with a first threaded hole and a second threaded hole with opposite threads. Connecting rods are rotatably installed on both sides of the bottom of the pallet, and one end of the two connecting rods is rotatably installed on the two screw sleeves respectively.

[0007] Preferably, the outer side of the device body is further provided with a first driving component for driving the second screw. The first driving component includes a first motor, and the output end of the first motor is connected to one end of the second screw.

[0008] Preferably, the clamping mechanism is provided with a fixed seat, a movable seat and a clamping block in sequence along the axial direction of the frame. Both ends of the fixed seat are welded to the inner wall of the frame. Sliding grooves are provided on the inner walls of both sides of the frame along the axial direction. Both ends of the movable seat are respectively movably installed in the sliding grooves on both sides. A first screw is rotatably installed on the end of the movable seat near the fixed seat. One end of the first screw is screwed through the movable seat. The clamping space is formed between the two clamping blocks.

[0009] Preferably, the end of the first screw away from the clamping block is further provided with a second driving member for rotational driving. The second driving member includes at least one lever, which is arranged in the radial direction on the outer wall of one end of the screw.

[0010] Preferably, the device body includes an operating table, and both sides of the top of the operating table are longitudinally provided with upright plates for frame rotation, which are processed to be formed between the tops of the two upright plates, and a third driving member for driving the frame rotation is provided on the outer side of one of the upright plates.

[0011] Preferably, the third driving component includes a second motor, one end of which is connected to the rotation axis at one end of the frame.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] (1) By adding a liftable support plate, the crankshaft connecting rod can be horizontally supported before it is clamped, so that the side of the crankshaft connecting rod is on the processing horizontal plane, thus improving the accuracy of the equipment flipping process.

[0014] (2) With the addition of the lifting component, when the second screw rotates, the support plate can be automatically lifted and lowered through the two screw sleeves and two connecting rods, which facilitates the lifting, positioning and support of the crankshaft connecting rod. Attached Figure Description

[0015] Figure 1 This is the first front view of the present invention;

[0016] Figure 2 This is a second front view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention;

[0018] Figure 4 This is a top view of the pallet and operating table of this utility model;

[0019] Figure 5 This is a front view of the lever and the first screw of this utility model;

[0020] Figure 6 This is a cross-sectional view of the clamping mechanism of this utility model;

[0021] In the diagram: 1. Control panel; 2. First motor; 3. Second motor; 4. Frame; 5. Lever; 6. Support plate; 7. Connecting rod; 8. Fixed seat; 9. First screw; 10. Movable seat; 11. Clamping block; 12. Slide groove; 13. Screw sleeve; 14. First threaded hole; 15. Second threaded hole; 16. Second screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] refer to Figure 1-2 and Figure 4 As shown, the present invention provides a flipping mechanism for machining engine crankshaft connecting rods, comprising: a device body with a machining position at the top, a rotatable frame 4 arranged laterally in the machining position, two clamping mechanisms symmetrically arranged in the frame 4, a clamping space for clamping the crankshaft connecting rod formed between the two clamping mechanisms, and a liftable tray 6 provided below the frame 4, the tray 6 being able to lift and abut against the bottom of the crankshaft connecting rod, thereby allowing the crankshaft connecting rod to be placed horizontally in the clamping space based on the lifting mechanism.

[0024] Combination Figure 1-4 As shown in the figure, in order to facilitate the rotational installation position of the frame 4, the equipment body includes an operating table 1. Both sides of the top of the operating table 1 are longitudinally provided with vertical plates for the rotation of the frame 4, which are processed to be formed between the tops of the two vertical plates. A third driving component for driving the frame 4 to rotate is provided on the outer side of one of the vertical plates.

[0025] The above describes the use of the equipment body, frame 4, two clamping mechanisms, and pallet 6 provided by this utility model. The equipment body consists of an operating table 1 and two upright plates. The frame 4 is rotatably installed between the tops of the two upright plates. When the equipment is in use, the pallet 6 is raised into the clamping space. At this time, the crankshaft connecting rod is placed on the pallet 6. Then, the two clamping mechanisms are activated to clamp the crankshaft connecting rod in the frame 4. At this time, the pallet 6 is away from the frame 4. After one side of the crankshaft connecting rod is processed, the frame 4 is flipped to facilitate the equipment to flip the crankshaft connecting rod for processing.

[0026] Furthermore, to facilitate the flip-driven operation of frame 4, refer to... Figure 1-2 and Figure 4As shown, the third driving component includes a second motor 3, one end of which is connected to the rotation axis of one end of the frame 4. The second motor 3 provides a flipping driving force for the frame 4. The second motor 3 facilitates the flipping drive by driving the crankshaft connecting rod in the frame 4.

[0027] In this utility model, combined with Figure 1-4 As shown, the top of the device body in this embodiment is also provided with a lifting component for driving the pallet 6 to rise and fall. The lifting component includes a rotatable second screw 16 and two screw sleeves 13 sleeved on the second screw 16. The two screw sleeves 13 are respectively provided with a first threaded hole 14 and a second threaded hole 15 with opposite threads. Connecting rods 7 are rotatably installed on both sides of the bottom of the pallet 6, and one end of the two connecting rods 7 is rotatably installed on the two screw sleeves 13 respectively.

[0028] Combination Figure 1-4 As shown, the outer side of the device body is also provided with a first driving component for driving the second screw 16. The first driving component includes a first motor 2, and the output end of the first motor 2 is connected to one end of the second screw 16.

[0029] As described above, when using the lifting component provided by this utility model, the pallet 6 is mounted on the second screw 16 via two sets of connecting rods 7 and screw sleeves 13. When the first motor 2 drives the second screw 16 to rotate, the two screw sleeves 13 have first threaded holes 14 and second threaded holes 15 with opposite threads, which allows the two screw sleeves 13 to move closer or further apart synchronously. When the two screw sleeves 13 move closer, the connecting rods 7 drive the pallet 6 to move downward. When the two screw sleeves 13 move further apart, the connecting rods 7 drive the pallet 6 to move upward. When the pallet 6 is at its lowest position, the pallet 6 will not interfere with the flipping of the frame 4. When the pallet 6 is at its highest position, the pallet 6 is in the clamping space.

[0030] In this utility model, combined with Figure 2 , Figure 4 and Figure 6 As shown, the clamping mechanism of this embodiment is provided with a fixed seat 8, a movable seat 10 and a clamping block 11 in sequence along the axial direction of the frame 4. Both ends of the fixed seat 8 are welded to the inner wall of the frame 4. Slide grooves 12 are provided along the axial direction on the inner walls of both sides of the frame 4. Both ends of the movable seat 10 are respectively movably installed in the slide grooves 12 on both sides. A first screw 9 is rotatably installed on the end of the movable seat 10 near the fixed seat 8. One end of the first screw 9 is screwed through the movable seat 10. The clamping space is formed between the two clamping blocks 11.

[0031] Combination Figure 1-2 and Figure 4-5 As shown, the end of the first screw 9 away from the clamping block 11 is also provided with a second driving member for rotational drive. The second driving member includes at least one lever 5, which is arranged in the radial direction on the outer wall of one end of the screw.

[0032] As described above, in the clamping mechanism provided by this utility model, the fixed seat 8 in the clamping mechanism provides an installation position for the screw in the frame 4, and the movable seat 10 is movably installed in the frame 4 through the slide groove 12. The first screw 9 can be rotated by the lever 5, thereby moving the movable seat 10 closer to or away from the fixed seat 8, and thus clamping the crankshaft connecting rod in the frame 4. The thickness of the clamping block 11 is less than the thickness of the crankshaft connecting rod. When the clamping block 11 is clamped on the crankshaft connecting rod, the clamping block 11 is located in the middle of the end of the crankshaft connecting rod, so as to avoid damage to the clamping block 11 during the processing of the crankshaft connecting rod.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An engine crankshaft connecting rod machining flip mechanism, characterized in that, include: The equipment body has a processing position at the top. A rotatable frame (4) is provided horizontally in the processing position. Two clamping mechanisms are symmetrically arranged in the frame (4). A clamping space for clamping the crankshaft connecting rod is formed between the two clamping mechanisms. A liftable tray (6) is provided below the frame (4). The tray (6) can be lifted and abutted against the bottom of the crankshaft connecting rod. The crankshaft connecting rod is placed horizontally in the clamping space based on the lifting.

2. The roll-over mechanism for engine crankshaft connecting rod machining according to claim 1, characterized in that: The top of the device body is also provided with a lifting component for driving the pallet (6) to rise and fall. The lifting component includes a rotatable second screw (16) and two screw sleeves (13) sleeved on the second screw (16). The two screw sleeves (13) are respectively provided with a first threaded hole (14) and a second threaded hole (15) with opposite threads. Connecting rods (7) are rotatably installed on both sides of the bottom of the pallet (6), and one end of the two connecting rods (7) is rotatably installed on the two screw sleeves (13).

3. A roll-over mechanism for engine crankshaft connecting rod machining according to claim 2, characterized in that: The outer side of the device body is also provided with a first driving component for driving the second screw (16). The first driving component includes a first motor (2), and the output end of the first motor (2) is connected to one end of the second screw (16).

4. The roll-over mechanism for engine crankshaft connecting rod machining according to claim 1, characterized in that: The clamping mechanism is provided with a fixed seat (8), a movable seat (10) and a clamping block (11) in sequence along the axial direction of the frame (4). Both ends of the fixed seat (8) are welded to the inner wall of the frame (4). Slide grooves (12) are provided on the inner walls of both sides of the frame (4) along the axial direction. Both ends of the movable seat (10) are respectively movably installed in the slide grooves (12) on both sides. A first screw (9) is rotatably installed on one end of the movable seat (10) near the fixed seat (8). One end of the first screw (9) is screwed through the movable seat (10). The clamping space is formed between the two clamping blocks (11).

5. A roll-over mechanism for engine crankshaft connecting rod machining according to claim 4, characterized in that: The first screw (9) is further provided with a second driving member for rotational drive at one end away from the clamping block (11). The second driving member includes at least one lever (5), which is arranged in the radial direction of the outer wall of one end of the screw.

6. The roll-over mechanism for engine crankshaft connecting rod machining according to claim 1, characterized in that: The device body includes an operating table (1), and the top of the operating table (1) is provided with vertical plates on both sides for rotating the frame (4) in a longitudinal direction. The plates are processed to be formed between the tops of the two vertical plates, and a third driving member for driving the frame (4) to rotate is provided on the outer side of one of the vertical plates.

7. A roll-over mechanism for engine crankshaft connecting rod machining according to claim 6, characterized in that: The third driving component includes a second motor (3), one end of which is connected to the rotation axis of one end of the frame (4).

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