Mistake-proof positioning clamp for engine flywheel

Abstract

The utility model discloses an engine flywheel mistake-proofing positioning clamp, which relates to the technical field of engine flywheel processing, and comprises a main body plate, the bottom end of the main body plate is fixedly connected with a pair of symmetrically arranged supporting legs, the dead center position of the upper end surface of the main body plate is fixedly connected with an electric telescopic rod, and the upper end of the electric telescopic rod is provided with an inner hole positioning mechanism. A first servo motor is fixedly connected to the bottom end in the main body plate, a driving gear is fixedly connected to the upper end of the first servo motor, a first toothed plate is movably connected to one end of the driving gear, a second toothed plate is movably connected to the other end of the driving gear, and side wall positioning mechanisms are arranged at the upper ends of the first toothed plate and the second toothed plate; parts are driven by the second servo motor to conduct transmission, the inner hole of the engine flywheel is positioned, it can be guaranteed that the inner hole of the engine flywheel is accurately positioned and fixed, the occupied area of the fixing plate is small, the fixing plate does not occupy any other area except the inner hole of the engine flywheel, and therefore the machining range of workers is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine flywheel processing, in particular to an engine flywheel anti-misalignment positioning fixture. Background Art

[0002] The automobile engine is a device that provides power for the car. It is the heart of the car and determines the car's power, economy, stability and environmental protection. According to the different power sources, automobile engines can be divided into diesel engines, gasoline engines, electric car motors and hybrid power.

[0003] After searching, it was found that the Chinese patent with announcement number CN 216228790 U discloses an adjustable engine flywheel tooling fixture, including a base, a motor is fixedly installed inside the base, the output end of the motor is fixedly connected to a support rod, the end of the support rod away from the motor is fixedly connected to a mounting block, a flywheel body is installed above the mounting block, two guide blocks are movably connected inside the mounting block through a second spring, an adjustment component is provided at the top of the guide block and located in the middle of the flywheel body, a support frame is movably provided on the upper surface of the base and located on one side of the flywheel body, a cylinder is fixedly installed at one end of the support frame, the output end of the cylinder passes through the support frame and is rotatably connected to a pressure block, and by arranging a movable guide block and an adjustment component inside the mounting block, flywheels of different specifications can be fixed, thereby improving the scope of application of the fixture.

[0004] The above utility model has the following problems:

[0005] 1. In the above application, although the flywheel can be clamped, the area of ​​the flywheel occupied after clamping is relatively large, which will result in a processing dead angle when processing the flywheel, affecting the processing area.

[0006] 2. In the above application, the flywheel can only be clamped in one way. If the inner wall of the hole or the upper and lower outer surfaces need to be processed, the clamping function cannot be used, which has limitations.

[0007] Therefore, those skilled in the art provide an engine flywheel anti-misalignment positioning fixture to solve the problems raised in the above background technology. Utility Model Content

[0008] The utility model aims to provide an engine flywheel anti-misalignment positioning fixture to solve the problems raised in the above background technology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] The engine flywheel anti-mistake positioning fixture comprises a main body plate, an inner hole positioning mechanism and a side wall positioning mechanism, wherein a pair of symmetrically arranged supporting legs are fixedly connected to the bottom end of the main body plate, an electric telescopic rod is fixedly connected to the center position of the upper end surface of the main body plate, an inner hole positioning mechanism is arranged on the upper end of the electric telescopic rod, a first servo motor is fixedly connected to the bottom end of the main body plate, a driving gear is fixedly connected to the upper end of the first servo motor, one end of the driving gear is movably connected to the first tooth plate, the other end of the driving gear is movably connected to the second tooth plate, and the upper ends of the first tooth plate and the second tooth plate are both provided with side wall positioning mechanisms.

[0011] As a further solution of the utility model: the ends of the upper surfaces of the first tooth plate and the second tooth plate away from the driving gear are fixedly connected with sliders, the left and right ends of the upper surface of the main plate are provided with a pair of sliding grooves, the sliding grooves are slidably connected to adjacent sliders, the upper ends of the sliders are fixedly connected with support columns, the ends of the support columns close to the driving gear are fixedly connected with support plates, and the ends of the support plates close to the driving gear are fixedly connected with clamping blocks.

[0012] As a further solution of the utility model: the clamping blocks are fixedly connected inside with multiple groups of fixed rods arranged in a rectangular array, the fixed rods are fixedly connected inside with damping springs, the damping springs are fixedly connected to retraction rods at one end away from the fixed rods, the retraction rods are sleeved with the fixed rods, the fixed rods are provided with air outlets at one end away from the retraction rods, and the end of the clamping block away from the retraction rods is a total air outlet.

[0013] As a further solution of the utility model: the upper end of the electric telescopic rod is rotatably connected to a driven gear, the upper end of the driven gear is rotatably connected to a limiting plate, the upper end of the limiting plate is fixedly connected to a second servo motor, the power output end of the second servo motor passes through the limiting plate and is fixedly connected to an adjusting gear, and the adjusting gear is rotatably connected to the limiting plate and movably connected to the driven gear, a plurality of clamping grooves are provided in the driven gear, and clamping blocks are movably clamped in the clamping grooves, the end of the clamping block away from the driven gear is fixedly connected to a contraction plate, the contraction plates are sleeved and connected to the limiting plate, the end of the contraction plate away from the driven gear is fixedly connected to a fixed plate, a single fixed plate is arc-shaped, and all the fixed plates are circular when combined.

[0014] As a further solution of the utility model: the driving gear is meshed with both the first tooth plate and the second tooth plate.

[0015] As a further solution of the utility model: the driven gear is meshed with the adjusting gear.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The inner hole positioning mechanism is provided, and the second servo motor drives the transmission of the parts to make the fixing plate continuously expand outward to position the inner hole of the engine flywheel, which can ensure that the inner hole of the engine flywheel is accurately positioned and fixed. The fixing plate occupies a small area and will not occupy any area of ​​the engine flywheel except the inner hole, thereby increasing the processing range of the staff;

[0018] 2. Due to the side wall positioning mechanism, the first servo motor drives the transmission of the components to make the slider slide smoothly in the slide groove, ensuring that the engine flywheel can be accurately positioned during the processing. Devices such as damping springs and fixing rods avoid the possibility that traditional hard clamping may cause damage or scratches due to its inability to adapt to irregular shapes. The side wall positioning mechanism can treat the workpiece surface more gently and reduce the potential risk of damage caused by the clamping method. Since the engine flywheel is irregular in shape and the side wall has serrations, flexible clamping can better adapt to this shape feature. The clamping device can flexibly adjust the shape and position to ensure that the side wall of the engine flywheel can be fully covered and stably clamped, no matter how complex or serrated its shape is. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the engine flywheel anti-misalignment positioning fixture.

[0020] Figure 2 This is a schematic diagram of the structure of the driven gear in the engine flywheel anti-misalignment positioning fixture.

[0021] Figure 3 This is a schematic diagram of the structure of the driving gear in the engine flywheel anti-misalignment positioning fixture.

[0022] Figure 4 This is a schematic diagram of the structure of the clamping block in the engine flywheel anti-misalignment positioning fixture.

[0023] Figure 5 It is a schematic diagram of the side cross-sectional structure of the clamping block in the engine flywheel anti-misalignment positioning fixture.

[0024] In the figure: 1. main plate; 2. supporting leg; 3. slide groove; 4. slider; 5. first servo motor; 6. driving gear; 7. first tooth plate; 8. supporting column; 9. supporting plate; 10. second tooth plate; 11. clamping block; 12. retracting rod; 13. fixing rod; 14. damping spring; 15. air outlet; 16. main air outlet; 17. electric telescopic rod; 18. driven gear; 19. adjusting gear; 20. limit plate; 21. second servo motor; 22. clamping groove; 23. clamping block; 24. retracting plate; 25. fixing plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] Reference Figure 1-5 The embodiment provides an engine flywheel anti-misalignment positioning fixture, including a main body plate 1, a support leg 2, a slide slot 3, a slider 4, a first servo motor 5, a driving gear 6, a first tooth plate 7, a support column 8, a support plate 9, a second tooth plate 10, a clamping block 11, a retracting rod 12, a fixing rod 13, a damping spring 14, an air outlet 15, a total air outlet 16, an electric telescopic rod 17, a driven gear 18, an adjusting gear 19, a limit plate 20, a second servo motor 21, a clamping slot 22, a clamping block 23, a retracting plate 24, and a fixing plate 25. A pair of symmetrically arranged supporting legs 2 are fixedly connected to the bottom end of the main body plate 1, an electric telescopic rod 17 is fixedly connected to the center position of the upper end surface of the main body plate 1, an inner hole positioning mechanism is arranged on the upper end of the electric telescopic rod 17, a first servo motor 5 is fixedly connected to the bottom end of the inside of the main body plate 1, a driving gear 6 is fixedly connected to the upper end of the first servo motor 5, one end of the driving gear 6 is movably connected to the first tooth plate 7, the other end of the driving gear 6 is movably connected to the second tooth plate 10, and the upper ends of the first tooth plate 7 and the second tooth plate 10 are both provided with side wall positioning mechanisms.

[0028] Example 2

[0029] Reference Figure 1 , 3 , 4, 5, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that the ends of the upper end surfaces of the first tooth plate 7 and the second tooth plate 10 away from the driving gear 6 are fixedly connected with a slider 4, the left and right ends of the upper end surface of the main body plate 1 are provided with a pair of slide grooves 3, the slide grooves 3 are slidably connected to the adjacent sliders 4, the upper ends of the sliders 4 are fixedly connected with support columns 8, the ends of the support columns 8 close to the driving gear 6 are fixedly connected with support plates 9, and the ends of the support plates 9 close to the driving gear 6 are fixedly connected with clamping blocks 11, the clamping block 11 is fixedly connected with a plurality of fixed rods 13 arranged in a rectangular array, the fixed rods 13 are fixedly connected with damping springs 14, the ends of the damping springs 14 away from the fixed rods 13 are fixedly connected with contraction rods 12, the contraction rods 12 are sleeved and connected with the fixed rods 13, the ends of the fixed rods 13 away from the contraction rods 12 are provided with air outlets 15, the ends of the clamping block 11 away from the contraction rods 12 are all provided with air outlets 16, the driving gear 6 is meshed with the first tooth plate 7 and the second tooth plate 10;

[0030] Example 3

[0031] Reference Figure 1 , 2 , this embodiment is based on the previous embodiment, and is different from the previous embodiment in that the upper end of the electric telescopic rod 17 is rotatably connected to a driven gear 18, and the upper end of the driven gear 18 is rotatably connected to a limiting plate 20, and the upper end of the limiting plate 20 is fixedly connected to a second servo motor 21, and the power output end of the second servo motor 21 passes through the limiting plate 20 and is fixedly connected to an adjusting gear 19, and the adjusting gear 19 is rotatably connected to the limiting plate 20 and movably connected to the driven gear 18, and a plurality of clamping grooves 22 are provided in the driven gear 18, and a clamping block 23 is movably clamped in the clamping groove 22, and the end of the clamping block 23 away from the driven gear 18 is fixedly connected to a contraction plate 24, and the contraction plate 24 is sleeved and connected to the limiting plate 20, and the end of the contraction plate 24 away from the driven gear 18 is fixedly connected to a fixed plate 25, and a single fixed plate 25 is arc-shaped, and all the fixed plates 25 are circular after being combined, and the driven gear 18 is meshed with the adjusting gear 19;

[0032] The first servo motor 5 is started, and the first servo motor 5 drives the driving gear 6 to rotate, and the driving gear 6 is meshed with the first tooth plate 7 and the second tooth plate 10 on both sides, thereby driving the first tooth plate 7 and the second tooth plate 10 to move toward one end close to the driving gear 6 or away from the driving gear 6 at the same time, so that the slider 4 on the upper end of the tooth plate slides in the slide groove 3 on the main plate 1;

[0033] The engine flywheel is placed in the middle of the two groups of clamping blocks 11, and the two groups of clamping blocks 11 are controlled to move in the center through the drive of the first servo motor 5, and the retracting rod 12 contacts the engine flywheel. The retracting rod 12 that contacts the engine flywheel will move backwards due to the damping spring 14 and the sleeve connection with the rear end fixing rod 13, until the damping spring 14 reaches the maximum tension, and the retracting rod 12 that contacts the engine flywheel will retract, and the retracting rod 12 that does not contact the engine flywheel will remain in place, so that the engine flywheel can be positioned according to its special shape, and the outer surface and inner hole of the engine flywheel can be processed;

[0034] Start the second servo motor 21, which drives the adjusting gear 19 to rotate. The adjusting gear 19 meshes with the driven gear 18 to drive the driven gear 18 to rotate. The driven gear 18 drives the engaging block 23 in the internal engaging groove 22 to move. The engaging rod is limited by the engaging groove 22 and can only move inside it, thereby driving the shrinking plate 24 fixedly connected at the upper end to shrink, and finally making the fixed plate 25 continue to expand outward. A single fixed plate 25 is arc-shaped, and all the fixed plates 25 are circular after being combined, so that the inner hole of the engine flywheel can be positioned and the outer wall of the engine flywheel can be processed.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An engine flywheel anti-misalignment positioning fixture, comprising a main body plate (1), an inner hole positioning mechanism and a side wall positioning mechanism, characterized in that: A pair of symmetrically arranged supporting legs (2) are fixedly connected to the bottom end of the main body plate (1); an electric telescopic rod (17) is fixedly connected to the center of the upper end surface of the main body plate (1); an inner hole positioning mechanism is arranged at the upper end of the electric telescopic rod (17); a first servo motor (5) is fixedly connected to the bottom end of the main body plate (1); a driving gear (6) is fixedly connected to the upper end of the first servo motor (5); one end of the driving gear (6) is movably connected to a first tooth plate (7); the other end of the driving gear (6) is movably connected to a second tooth plate (10); and side wall positioning mechanisms are arranged at the upper ends of both the first tooth plate (7) and the second tooth plate (10); The side wall positioning mechanism comprises a slide groove (3), a slider (4), a support column (8), a support plate (9), a clamping block (11), a retracting rod (12), a fixing rod (13), a damping spring (14), an air outlet (15), and a main air outlet (16); the ends of the upper end surfaces of the first tooth plate (7) and the second tooth plate (10) away from the driving gear (6) are fixedly connected with the slider (4); The inner hole positioning mechanism comprises a driven gear (18), an adjusting gear (19), a limiting plate (20), a second servo motor (21), a clamping groove (22), a clamping block (23), a contraction plate (24), and a fixing plate (25); the upper end of the electric telescopic rod (17) is rotatably connected to the driven gear (18); the upper end of the driven gear (18) is rotatably connected to the limiting plate (20); the upper end of the limiting plate (20) is fixedly connected to the second servo motor (21); the power output end of the second servo motor (21) passes through the limiting plate (20) and is fixedly connected to the adjusting gear (19); the adjusting gear (19) is rotatably connected to the limiting plate (20) and is movably connected to the driven gear (18).

2. The engine flywheel anti-misalignment positioning fixture according to claim 1, characterized in that: A pair of slide grooves (3) are provided at both left and right ends of the upper end surface of the main body plate (1), the slide grooves (3) are slidably connected to adjacent sliders (4), the upper ends of the sliders (4) are fixedly connected to support columns (8), the ends of the support columns (8) close to the driving gear (6) are fixedly connected to support plates (9), and the ends of the support plates (9) close to the driving gear (6) are fixedly connected to clamping blocks (11).

3. The engine flywheel anti-misalignment positioning fixture according to claim 2, characterized in that: The clamping block (11) is fixedly connected to a plurality of fixed rods (13) arranged in a rectangular array, the fixed rods (13) are fixedly connected to damping springs (14), the ends of the damping springs (14) away from the fixed rods (13) are fixedly connected to retractable rods (12), the retractable rods (12) are sleeved and connected to the fixed rods (13), the ends of the fixed rods (13) away from the retractable rods (12) are provided with air outlets (15), and the ends of the clamping block (11) away from the retractable rods (12) are provided with a total air outlet (16).

4. The engine flywheel anti-misalignment positioning fixture according to claim 1, characterized in that: The driven gear (18) is provided with a plurality of engaging grooves (22), and engaging blocks (23) are movably engaged in the engaging grooves (22). One end of the engaging block (23) away from the driven gear (18) is fixedly connected to a contraction plate (24), and the contraction plate (24) is sleeved and connected to the limit plate (20). One end of the contraction plate (24) away from the driven gear (18) is fixedly connected to a fixing plate (25), and a single fixing plate (25) is arc-shaped, and all the fixing plates (25) are circular when combined.

5. The engine flywheel anti-misalignment positioning fixture according to claim 1, characterized in that: The driving gear (6) is meshed with both the first tooth plate (7) and the second tooth plate (10).

6. The engine flywheel anti-misalignment positioning fixture according to claim 1, characterized in that: The driven gear (18) is meshed with the adjusting gear (19).

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