Motorcycle crankshaft correction assembler

Abstract

The utility model discloses a motorcycle crankshaft correction assembler, and relates to the technical field of crankshaft machining. The motorcycle crankshaft correction assembler comprises a base, a hollow plate is arranged at the top of the base, shaft barrels are rotationally installed on the front side and the rear side of the hollow plate, workpiece openings are formed in the front side and the rear side of each shaft barrel, a second electric push rod is fixedly installed at the top of the base, and the free end of the second electric push rod is fixedly installed on the outer wall of the front side of the hollow plate. The first clamping assembly is installed on the outer side of the connecting rod, and the second clamping assembly is installed on the shaft barrel. According to the assembling device for the motorcycle crankshafts, connecting rods of most sizes can be clamped and fixed through the first clamping assembly, crankshaft handles of most sizes can be clamped and fixed through the second clamping assembly, so that the assembling device can assemble most motorcycle crankshafts conveniently, the applicability of the assembling device is improved, and the assembling device meets the market requirement.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft processing technology, and in particular to a motorcycle crankshaft alignment assembler. Background Technology

[0002] The motorcycle crankshaft is one of the most important components of an internal combustion engine. Its main function is to convert the reciprocating motion of the piston into the rotational motion of the output shaft, thereby driving the motorcycle. The crankshaft achieves this motion conversion by connecting components such as the piston, connecting rod, and camshaft. The motorcycle crankshaft is mainly composed of two sets of crankshaft stems, connecting rod pins, connecting rods, and bearings.

[0003] Chinese document CN211540153U discloses a motorcycle crankshaft alignment assembler, comprising a first base, a second base movably connected to one side of the first base, a first telescopic rod disposed between the first base and the second base, a third base movably connected to one side of the second base, and a second telescopic rod disposed between the second base and the third base, and two sets of first bearings symmetrically fixedly connected to the outer surface of the top of the first base. By using a first connecting piece, a second connecting piece, adjusting bolts, springs, sleeves, telescopic columns, the first telescopic rod, the second telescopic rod, and connecting rod fixing components, the first and second cranks on the crankshaft are fixed together by the first and second connecting pieces, and the connecting rod is fixed together by the connecting rod fixing components. The first crank, second crank, and connecting rod are assembled using an external workpiece such as a press. This method is more convenient and simpler than manual assembly. The device has a simple structure and is convenient and practical.

[0004] However, the aforementioned crankshaft alignment assembler can only fix cranks and connecting rods of a specified size during use, and cannot fix cranks and connecting rods of other sizes. Utility Model Content

[0005] The purpose of this invention is to provide a motorcycle crankshaft alignment assembler to solve the problems and defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a motorcycle crankshaft alignment assembler, comprising a base, a hollow plate on the top of the base, a shaft sleeve rotatably mounted on the front and rear sides of the hollow plate, workpiece openings on the front and rear sides of the shaft sleeve, a crankshaft handle inside the workpiece opening, a connecting rod pin groove on the crankshaft handle, a connecting rod pin on the rear side of the crankshaft handle, a connecting rod on the outer side of the connecting rod pin, a bearing sleeved between the connecting rod pin and the connecting rod, a second electric push rod fixedly mounted on the top of the base, the free end of the second electric push rod fixedly mounted to the front outer wall of the hollow plate, and a first clamping assembly mounted on the outer side of the connecting rod, the first electric push rod being positioned below the first clamping assembly for clamping and fixing the connecting rod, and a second clamping assembly mounted on the shaft sleeve for clamping and fixing the crankshaft handle inside the workpiece opening.

[0007] Preferably, the first clamping assembly includes a crossbeam, a first bidirectional threaded rod, a first knob, and clamping rods. A first electric push rod is fixedly installed on the top of the base, and the crossbeam is fixedly installed on the free end of the first electric push rod. A groove is provided on the top of the crossbeam. The first bidirectional threaded rod is rotatably installed on the inner walls of both sides of the groove. There are two first knobs, which are respectively fixedly installed on both ends of the first bidirectional threaded rod. There are two clamping rods, both of which are slidably installed in the groove. Both clamping rods are threaded onto the first bidirectional threaded rod. A connecting rod is located between the two clamping rods, which can clamp and fix connecting rods of most sizes.

[0008] Preferably, the second clamping assembly includes a first guide rod, a second bidirectional threaded rod, clamping blocks, and a second knob. The first guide rod is fixedly installed on the inner wall of the shaft cylinder. The second bidirectional threaded rod is rotatably installed on the top and bottom of the shaft cylinder. Two clamping blocks are threadedly installed on the second bidirectional threaded rod, and both clamping blocks are slidably installed on the first guide rod. Two second knobs are fixedly installed at both ends of the second bidirectional threaded rod. The crankshaft handle is located between the two clamping blocks, which can clamp and fix crankshaft handles of most sizes. This makes the assembler easy to assemble most motorcycle crankshafts, improves the applicability of the assembler, and makes the assembler meet market demands.

[0009] Preferably, a fixing bolt is threaded onto the top of the hollow plate, and one end of the fixing bolt contacts the top outer wall of the shaft cylinder.

[0010] Preferably, two second guide rods are fixedly installed on the front and rear sides of the base, and the hollow plate is slidably installed on the two second guide rods.

[0011] Preferably, there are two hollow plates, a shaft cylinder, a second electric push rod, and a second clamping assembly, arranged symmetrically front to back.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The first clamping assembly can clamp and fix connecting rods of most sizes, and the second clamping assembly can clamp and fix crankshafts of most sizes, making the assembler easy to assemble most motorcycle crankshafts, improving the assembler's applicability and enabling it to meet market demands. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the hollow plate of this utility model;

[0017] Figure 3 This is a cross-sectional view of the shaft cylinder of this utility model;

[0018] Figure 4 This is a cross-sectional view of the crossbeam of this utility model.

[0019] Reference numerals: 1. Base; 2. Hollow plate; 3. Shaft cylinder; 4. Crankshaft handle; 5. Connecting rod pin; 6. Connecting rod; 7. Bearing; 8. First electric push rod; 9. Crossbeam; 10. First double-sided threaded rod; 11. First knob; 12. Clamping rod; 13. First guide rod; 14. Second double-sided threaded rod; 15. Clamping block; 16. Second knob; 17. Second guide rod; 18. Fixing bolt; 19. Second electric push rod. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Please see Figure 1-4This utility model provides a technical solution: a motorcycle crankshaft alignment assembler, including a base 1, a hollow plate 2 on the top of the base 1, a shaft cylinder 3 rotatably mounted on the front and rear sides of the hollow plate 2, a workpiece opening on the front and rear sides of the shaft cylinder 3, a crankshaft handle 4 inside the workpiece opening, a connecting rod pin groove on the crankshaft handle 4, a connecting rod pin 5 on the rear side of the crankshaft handle 4, a connecting rod 6 on the outer side of the connecting rod pin 5, a bearing 7 sleeved between the connecting rod pin 5 and the connecting rod 6, a second electric push rod 19 fixedly mounted on the top of the base 1, the free end of the second electric push rod 19 fixedly mounted to the front outer wall of the hollow plate 2, and a first clamping assembly mounted on the outer side of the connecting rod 6, a first electric push rod 8 below the first clamping assembly, the first clamping assembly being used to clamp and fix the connecting rod 6, and a second clamping assembly mounted on the shaft cylinder 3, the second clamping assembly being used to clamp and fix the crankshaft handle 4 inside the workpiece opening.

[0022] Furthermore, the first clamping assembly includes a crossbeam 9, a first bidirectional threaded rod 10, a first knob 11, and clamping rods 12. A first electric push rod 8 is fixedly installed on the top of the base 1. The crossbeam 9 is fixedly installed on the free end of the first electric push rod 8. A groove is provided on the top of the crossbeam 9. The first bidirectional threaded rod 10 is rotatably installed on the inner walls of both sides of the groove. There are two first knobs 11, which are respectively fixedly installed on both ends of the first bidirectional threaded rod 10. There are two clamping rods 12, which are slidably installed in the groove. Both clamping rods 12 are threaded onto the first bidirectional threaded rod 10. The connecting rod 6 is located between the two clamping rods 12. When the first knob 11 is manually turned, the first knob 11 drives the first bidirectional threaded rod 10 to rotate. The rotation of the first bidirectional threaded rod 10 drives the two clamping rods 12 to move relative to each other, so that the two clamping rods 12 clamp the connecting rod 6. This can fix the connecting rod 6 of most sizes.

[0023] Furthermore, the second clamping assembly includes a first guide rod 13, a second bidirectional threaded rod 14, clamping blocks 15, and a second knob 16. The first guide rod 13 is fixedly installed on the inner wall of the shaft cylinder 3. The second bidirectional threaded rod 14 is rotatably installed on the top and bottom of the shaft cylinder 3. Two clamping blocks 15 are threadedly installed on the second bidirectional threaded rod 14, and both clamping blocks 15 are slidably installed on the first guide rod 13. Two second knobs 16 are fixedly installed at both ends of the second bidirectional threaded rod 14. The crankshaft handle 4 is located between the two clamping blocks 15. Manually turning the second knob 16 drives the second bidirectional threaded rod 14 to rotate. The rotation of the second bidirectional threaded rod 14 drives the two clamping blocks 15 to move relative to each other, so that the two clamping blocks 15 clamp the crankshaft handle 4. This allows for the fixing of crankshaft handles 4 of most sizes, making the assembler convenient for assembling most motorcycle crankshafts, improving the applicability of the assembler, and enabling the assembler to meet market demands.

[0024] Furthermore, a fixing bolt 18 is threaded onto the top of the hollow plate 2, and one end of the fixing bolt 18 contacts the top outer wall of the shaft cylinder 3.

[0025] Furthermore, two second guide rods 17 are fixedly installed on the front and rear sides of the base 1, and the hollow plate 2 is slidably installed on the two second guide rods 17.

[0026] Furthermore, there are two hollow plates 2, shaft cylinder 3, second electric push rod 19, and second clamping assembly, which are arranged symmetrically front and back.

[0027] Working principle: By placing the crankshaft handle 4 into the workpiece opening, manually turning the second knob 16 drives the second bidirectional threaded rod 14 to rotate. The rotation of the second bidirectional threaded rod 14 causes the two clamping blocks 15 to move relative to each other, thus clamping and fixing the crankshaft handle 4. Holding the connecting rod pin 5, connecting rod 6, and bearing 7, place the connecting rod 6 between the two clamping rods 12. By manually turning the first knob 11, the first knob 11 drives the first bidirectional threaded rod 10 to rotate. The rotation of the first bidirectional threaded rod 10 causes the two clamping rods 12 to move relative to each other, thus clamping and fixing the connecting rod 6. By manually turning the shaft sleeve 3, the shaft sleeve 3... The crankshaft 4 is driven to rotate, so that the connecting rod pin groove of the crankshaft 4 is at the top, and the two crankshaft 4 are driven to be symmetrical front and back. The fixing bolt 18 is fixed to the shaft sleeve 3 by manually turning the fixing bolt 18 to prevent the shaft sleeve 3 and the crankshaft 4 from rotating. Then the first electric push rod 8 is activated. The free end of the first electric push rod 8 drives the cross beam 9, clamp rod 12, connecting rod pin 5, connecting rod 6, and bearing 7 to rise and fall, so that the connecting rod pin 5 and the connecting rod pin groove of the crankshaft 4 are on the same axis. Then the second electric push rod 19 is activated. The free end of the second electric push rod 19 pushes the hollow plate 2, shaft sleeve 3, and crankshaft 4, so that the connecting rod pin 5 can be assembled into the connecting rod pin groove of the crankshaft 4.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A motorcycle crankshaft correction assembler, comprising a base (1), the top of the base (1) is provided with a hollow plate (2), the front and rear sides of the hollow plate (2) are rotatably installed with shaft cylinders (3), the front and rear sides of the shaft cylinders (3) are provided with workpiece openings, the workpiece openings are provided with crankshafts (4), the crankshafts (4) are provided with connecting rod pin grooves, the rear side of the crankshafts (4) is provided with connecting rod pins (5), the outer side of the connecting rod pins (5) is provided with connecting rods (6), the connecting rod pins (5) and the connecting rods (6) are sleeved with bearings (7), the top of the base (1) is fixedly installed with a second electric push rod (19), the free end of the second electric push rod (19) is fixedly installed with the front side outer wall of the hollow plate (2), characterized in that, Also include: The first clamping assembly is installed outside the connecting rod (6), and the lower part of the first clamping assembly is provided with a first electric push rod (8), which is used for clamping and fixing the connecting rod (6) through the first clamping assembly; The second clamping assembly is installed on the shaft cylinder (3), and the second clamping assembly is used for clamping and fixing the crank handle (4) in the workpiece opening.

2. A motorcycle crankshaft alignment fixture as defined in claim 1 wherein: The first clamping assembly includes a crossbeam (9), a first bidirectional threaded rod (10), a first knob (11), a clamping rod (12), a first electric push rod (8) is fixedly installed on the top of the base (1), the crossbeam (9) is fixedly installed on the free end of the first electric push rod (8), the top of the crossbeam (9) is provided with a sliding groove, the first bidirectional threaded rod (10) is rotatably installed on the inner wall of the sliding groove, the first knob (11) has two ends fixedly installed on the first bidirectional threaded rod (10), the clamping rod (12) has two ends slidably installed in the sliding groove, and the two clamping rods (12) are threadedly installed on the first bidirectional threaded rod (10). The connecting rod (6) is located between the two clamping rods (12).

3. A motorcycle crankshaft alignment fixture as defined in claim 2 wherein: The second clamping assembly includes a first guide rod (13), a second bidirectional threaded rod (14), a clamping block (15), and a second knob (16), the first guide rod (13) is fixedly installed on the inner wall of the shaft cylinder (3), the second bidirectional threaded rod (14) is rotatably installed on the top and bottom of the shaft cylinder (3), the clamping block (15) has two ends threadedly installed on the second bidirectional threaded rod (14), the two clamping blocks (15) are slidably installed on the first guide rod (13), and the second knob (16) has two ends fixedly installed on the two ends of the second bidirectional threaded rod (14). The crank handle (4) is located between the two clamping blocks (15).

4. A motorcycle crankshaft alignment fixture as claimed in claim 3 wherein: The top of the hollow plate (2) is threadedly installed with a fixing bolt (18), one end of the fixing bolt (18) is in contact with the top outer wall of the shaft cylinder (3).

5. A motorcycle crankshaft alignment fixture as claimed in claim 4 wherein: The front and rear sides of the base (1) are fixedly installed with two second guide rods (17), and the hollow plate (2) is slidably installed on the two second guide rods (17).

6. A motorcycle crankshaft alignment fixture as claimed in claim 5 wherein: The hollow plate (2), the shaft cylinder (3), the second electric push rod (19) and the second clamping assembly are all two and symmetrically arranged front and back.

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