High-precision equal-division crankshaft eccentricity clamp

Abstract

A high-precision crankshaft eccentric fixture includes a left clamping body and a right clamping body at both ends of the crankshaft. The left clamping body has a left front fixed body at its outer end, with a left slide block movably connected to its inner side. The right clamping body has a right front fixed body at its outer end, with a right slide block movably connected to its inner side. The purpose of this design is to achieve continuous precision machining of the crankshaft connecting rod diameter in a single clamping operation. It offers advantages such as stable clamping, accurate indexing, adjustable eccentricity, and replaceable positioning blocks and clamping blocks. More importantly, the single clamping operation ensures a unified clamping datum, eliminating additional errors caused by two clamping operations. This improves the machining accuracy of the crankshaft connecting rod diameter's orientation angle and eccentricity, thus increasing both machining accuracy and efficiency. The fixture enables high-precision indexing of the crankshaft, allowing for high-precision machining on a lathe or grinding machine.

Description

Technical Field

[0001] This invention relates to the technical field of crankshaft clamping seats for lathes, specifically to a high-precision crankshaft eccentric clamp. Background Technology

[0002] Currently, with the rapid development of my country's shipbuilding and automobile industries, the demand for engine crankshafts is growing rapidly. Heavy truck crankshafts are mainly made by manufacturing three sets of manual fixtures, each set of fixtures corresponding to 1-6, 2-5, and 3-4 crank diameters respectively. They are processed separately on three machine tools, and the processing can only be completed after three clamping and positioning conversions. This results in low crankshaft processing efficiency, a significant increase in the orientation angle and eccentricity error of connecting rod diameter processing, and poor crankshaft processing accuracy. Summary of the Invention

[0003] This invention provides a high-precision crankshaft eccentric clamp to solve the technical problems mentioned in the background art.

[0004] A high-precision crankshaft eccentric clamp, comprising a left clamping body and a right clamping body at both ends of the crankshaft, characterized in that;

[0005] Left clamp body: The outer end of the left clamp body is a left front fixed body. The left front fixed body is movably connected to the left slide block inside. The front end of the left slide block is fixedly provided with an end cap. The left front fixed body and the left slide block are slidably connected by a dovetail sliding insert structure. A left lead screw seat is provided on the end face of the left front fixed body. A left auxiliary moving block is provided at the end cap of the left slide block. The left lead screw is vertically provided on the left auxiliary moving block and is rotatably connected to the left auxiliary moving block. The left lead screw passes through the left lead screw seat. A rotary shaft is provided in the middle of the left slide block. The rotary shaft is connected to the left front end of the crankshaft. A hydraulic cylinder is provided between the left slide block and the rotary shaft. A piston is provided inside the hydraulic cylinder. The piston has a recessed end. A first positioning gear plate is provided in the recessed end of the piston. The first positioning gear plate rotates coaxially with the piston. The piston rotates coaxially with the left slide block. The outer end face of the rotary shaft is provided with The second positioning gear plate rotates coaxially with the rotary shaft. The front end of the left front fixed body is provided with an oil distribution rod, which extends to the front of the left slide end cover. The left slide end cover is provided with at least two U-shaped hoses, the ends of which are connected to the oil distribution rod. The end cover is provided with at least two hydraulic push rods, the ends of which extend into the cylinder. The ends of the hydraulic push rods are connected to the U-shaped hoses and the piston, respectively. The rear end of the left slide is connected to a rotary seat, and the front end of the rotary seat is fixed with a large gear. The left slide is provided with a bevel gear shaft inside, the lower end of which meshes with the large gear. A rotating shaft is inserted into the outside of the left slide, and the end of the rotating shaft is provided with a bevel gear that meshes with the bevel gear shaft. One end of the rotary seat extends backward, and the extended part is provided with a clamping part.

[0006] Right clamp body: The outer end of the right clamp body is the right front fixed body. The right front fixed body is movably connected to the inside of the right front fixed body. The right front fixed body and the right slide are slidably connected by a sliding insertion structure. The end face of the right front fixed body is provided with a right lead screw seat. The right slide is provided with a right auxiliary moving block. The right auxiliary moving block is vertically provided with a right lead screw, and the right lead screw is rotatably connected to the right auxiliary moving block. The right lead screw passes through the right lead screw seat. The inner end of the right slide is provided with a clamping part. The side end of the right slide is connected to the right end of the crankshaft.

[0007] Preferably, a high-precision crankshaft eccentric clamp is characterized in that a limiting bolt is provided between the left front fixed body and the left slide block, and the limiting bolt is located at the opposite position of the left lead screw.

[0008] Preferably, a high-precision crankshaft eccentric clamp is characterized in that the rotary shaft and the right slide are provided with an axial positioning plate at their ends, and the rotary shaft, the slide and the crankshaft are connected by the axial positioning plate.

[0009] Preferably, a high-precision crankshaft eccentric clamp is characterized in that the rotary shaft rotates coaxially with the rotary seat, the rotary shaft rotates independently relative to the left slide, a rear bearing sleeve is provided between the middle of the rotary shaft and the middle of the left slide, and a front bearing sleeve is provided between the front of the rotary shaft and the front of the left slide.

[0010] Preferably, a high-precision crankshaft eccentric clamp is characterized in that the first positioning gear plate is fixed relative to the inner end face of the piston, the second positioning gear plate is fixed relative to the rotating shaft, the first positioning gear plate and the second positioning gear plate are end gear plates, and the end teeth of the first positioning gear plate and the second positioning gear plate are opposite to each other.

[0011] Preferably, a high-precision crankshaft eccentric clamp is characterized in that a small gear is provided at the rear end of the bevel gear shaft, and the small gear meshes with the large gear of the rotary seat.

[0012] Preferably, a high-precision crankshaft eccentric clamp is characterized in that the outer ring of the clamping part of the right slide of the rotary seat is a clamping block, the inner ring of the clamping block is provided with a pad, and the gap between the pad and the crankshaft is adjusted by a wedge block between the pad and the clamping block.

[0013] Preferably, a high-precision crankshaft eccentric clamp is characterized in that a pressure plate is provided at the rear end of the left slide, and the rotary seat rotates in the left slide through the pressure plate.

[0014] Preferably, a high-precision crankshaft eccentric clamp is characterized in that the oil cylinder and piston are arranged on the periphery of the rotary shaft, and the oil cylinder and the rotary shaft are relatively sealed.

[0015] Beneficial effects: The purpose of this solution is to achieve continuous precision machining of the crankshaft connecting rod diameter in a single clamping operation. It has advantages such as stable clamping, accurate indexing, adjustable eccentricity, and replaceable positioning blocks and clamping blocks. More importantly, the single clamping operation ensures a unified clamping datum, thus eliminating additional errors caused by two clamping operations. This improves the machining accuracy of the crankshaft connecting rod diameter's azimuth angle and eccentricity, thereby increasing both machining accuracy and efficiency. The fixture enables high-precision indexing of the crankshaft, allowing for high-precision machining on lathes or grinding machines. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the left clamp of the present invention.

[0017] Figure 2 This is a longitudinal sectional view of the left clamp of the present invention;

[0018] Figure 3 This is a longitudinal cross-sectional view of the right clamp of the present invention;

[0019] Figure 4 This is a schematic diagram of the left and right clamping bodies of the present invention combined with the crankshaft.

[0020] In the diagram: 1. Left front fixed body, 2. Left slide, 3. End cover, 4. Pressure plate, 5. Left auxiliary moving block, 6. Left lead screw, 7. Left lead screw seat, 8. Rotary shaft, 9. Oil cylinder, 10. Piston, 11. First positioning gear plate, 12. Second positioning gear plate, 13. Oil distribution rod, 14. U-shaped hose, 15. Hydraulic push rod, 16. Rotary seat, 17. Large gear, 18. Bevel gear shaft, 19. Rotary shaft, 20. Bevel gear, 21. Clamping part, 22. Right front fixed body, 23. Right slide, 24. Right lead screw seat, 25. Right auxiliary moving block, 26. Right lead screw, 27. Limit bolt, 28. Axial positioning plate, 29. Rear bearing sleeve, 30. Front bearing sleeve, 31. Small gear, 32. Clamping block, 33. Bearing block, 34. Wedge block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-4 A high-precision crankshaft eccentric clamp, comprising a left clamping body and a right clamping body at both ends of the crankshaft, characterized in that;

[0023] Left clamp body: The outer end of the left clamp body is a left front fixed body 1. The left front fixed body 1 is movably connected to the left slide block 2. The front end of the left slide block 2 is fixedly provided with an end cap 3. The left front fixed body 1 and the left slide block 2 are slidably connected by a dovetail sliding insertion structure. The end face of the left front fixed body 1 is provided with a left lead screw seat 7. The end cap 3 of the left slide block 2 is provided with a left auxiliary moving block 5. The left auxiliary moving block 5 is vertically provided with a left lead screw 6, and the left lead screw 6 is rotatably connected to the left auxiliary moving block 5. The left lead screw 6 passes through the left lead screw seat 7. The middle of the left slide block 2 is provided with a rotary shaft 8, which is connected to the left front end of the crankshaft. A hydraulic cylinder 9 is provided between the left slide block 2 and the rotary shaft 8. The hydraulic cylinder 9 is provided with a piston 10 inside. The piston 10 is provided with a recessed end. The recessed end of the piston 10 is provided with a first positioning gear 11. The first positioning gear 11 rotates coaxially with the piston 10. The piston 10 rotates coaxially with the left slide block 2. The outer end face of the rotary shaft 8 is provided with a second positioning gear 12. The two positioning gears 12 rotate coaxially with the rotary shaft 8. The front end of the left front fixed body 1 is provided with an oil distribution rod 13, which extends all the way to the front of the end cover 3 of the left slide block 2. The end cover 3 of the left slide block 2 is provided with at least two U-shaped hoses 14, the ends of which are connected to the oil distribution rod 13. The end cover 3 is provided with at least two hydraulic push rods 15, the ends of which extend into the oil cylinder 9. The ends of which are connected to the U-shaped hoses 14 and the piston 10 respectively. The rear end of the left slide block 2 is connected with a rotary seat 16. The front end of the rotary seat 16 is fixed with a large gear 17. The left slide block 2 is provided with a bevel gear shaft 18 inside, the lower end of which meshes with the large gear 17. The left slide block 2 is rotatably inserted with a rotating shaft 19. The end of the rotating shaft 19 is provided with a bevel gear 20, which meshes with the bevel gear shaft 18. One end of the rotary seat 16 extends backward, and the extended part is provided with a clamping part 21.

[0024] Right clamp body: The outer end of the right clamp body is a right front fixed body 22. The right front fixed body 22 is movably connected to the inner side of the right front fixed body 22. The right front fixed body 22 and the right slide 23 are slidably connected by a sliding insertion structure. The end face of the right front fixed body 22 is provided with a right lead screw seat 24. The right slide 23 is provided with a right auxiliary moving block 25. The right auxiliary moving block 25 is vertically provided with a right lead screw 26, and the right lead screw 26 is rotatably connected to the right auxiliary moving block 25. The right lead screw 26 passes through the right lead screw seat 24. The inner end of the right slide 23 is provided with a clamping part 21. The side end of the right slide 23 is connected to the right end of the crankshaft.

[0025] Furthermore, a limiting bolt 27 is provided between the left front fixed body 1 and the left slide block 2, and the limiting bolt 27 is located at the opposite position of the left lead screw 6.

[0026] Furthermore, the rotary shaft 8 and the right slide block 23 are provided with an axial positioning disk 28 at their ends, and the rotary shaft 8, the slide block 23 and the crankshaft are connected through the axial positioning disk 28.

[0027] Furthermore, the rotary shaft 8 rotates coaxially with the rotary seat 16, and the rotary shaft 8 rotates independently relative to the left slide 2. A rear bearing sleeve 29 is provided between the middle of the rotary shaft 8 and the middle of the left slide 2, and a front bearing sleeve 30 is provided between the front of the rotary shaft 8 and the front of the left slide 2.

[0028] Furthermore, the first positioning gear plate 11 is fixed relative to the inner end face of the piston 10, and the second positioning gear plate 12 is fixed relative to the rotating shaft 8. The first positioning gear plate 11 and the second positioning gear plate 12 are end gear plates, and the end teeth of the first positioning gear plate 11 and the second positioning gear plate 12 are opposite to each other.

[0029] Furthermore, a small gear 31 is provided at the rear end of the bevel gear shaft 18, which meshes with the large gear 17 of the rotary seat 16.

[0030] Furthermore, the outer ring of the clamping part 21 of the right slide 23 of the rotary seat 16 is a clamping block 32, and the inner ring of the clamping block 32 is provided with a bearing block 33. The gap between the bearing block 33 and the crankshaft is adjusted by the wedge block 34 between the bearing block 33 and the clamping block 32.

[0031] Furthermore, a pressure plate 4 is provided at the rear end of the left slide block 2, and the rotary seat 16 rotates in the left slide block 2 through the pressure plate 4.

[0032] Furthermore, the hydraulic cylinder 9 and piston 10 are arranged around the rotary shaft 8, and the hydraulic cylinder 9 and rotary shaft 8 are sealed relative to each other.

[0033] The outer end of the left clamp is a left front fixed body 1. The left front fixed body 1 is movably connected to the left slide block 2. The front end of the left slide block 2 is fixed with an end cap 3, which is fixed to the left slide block 2 by bolts. The left front fixed body 1 and the left slide block 2 are slidably connected by a dovetail sliding structure. The dovetail structure of the left slide block 2 is on the end cap 3. The end face of the left front fixed body 1 is provided with a left lead screw seat 7. The end cap 3 of the left slide block 2 is provided with a left auxiliary moving block 5. The left auxiliary moving block 5 is vertically provided with a left lead screw 6, and the left lead screw 6 is rotatably connected to the left auxiliary moving block 5. The left lead screw 6 passes through the left lead screw seat 7. When the left lead screw seat 7 is turned, the left lead screw seat 7 will pull the left slide block 2 and the left front fixed body 1 to slide longitudinally relative to each other through the seat moving auxiliary block, thereby finely adjusting the axial height. The left front fixed body 1 and the left slide block 2 are slidably connected by a dovetail sliding block 7. A limiting bolt 27 is provided between the two seats 2. The limiting bolt 27 is located opposite to the left lead screw 6 and is used to fix the relative position after fine adjustment. A rotary shaft 8 is provided in the middle of the left slide seat 2. The rotary shaft 8 is connected to the left front end of the crankshaft. An axial positioning plate 28 is provided at the end of the rotary shaft 8. The rotary shaft 8 is connected to the crankshaft through the axial positioning plate 28 to drive the crankshaft to rotate. The rotary shaft 8 and the left slide seat 2 rotate relatively independently. A rear bearing sleeve 29 is provided between the middle of the rotary shaft 8 and the middle of the left slide seat 2. A front bearing sleeve 30 is provided between the front of the rotary shaft 8 and the end cover 3 of the left slide seat 2 to ensure relatively independent rotation. A hydraulic cylinder 9 is provided between the left slide seat 2 and the rotary shaft 8. A piston 10 is provided inside the hydraulic cylinder 9. The hydraulic cylinder 9 and the piston 10 are located on the periphery of the rotary shaft 8. For sealing, piston 10 has a recessed end, and a first positioning toothed disc 11 is provided inside the recessed end of piston 10. The first positioning toothed disc 11 rotates coaxially with piston 10, and piston 10 rotates coaxially with left slide block 2. A second positioning toothed disc 12 is provided on the outer end face of rotary shaft 8. The second positioning toothed disc 12 rotates coaxially with rotary shaft 8. The first positioning toothed disc 11 is fixed relative to the inner end face of piston 10, and the second positioning toothed disc 12 is fixed relative to rotary shaft 8. The first positioning toothed disc 11 is an end toothed disc, and the second positioning toothed disc 12 is an end toothed disc. The end teeth of the first positioning toothed disc 11 and the second positioning toothed disc 12 are oriented in opposite directions. An oil distribution rod 13 is provided at the front end of left front fixed body 1, and the oil distribution rod 13 extends all the way to the front part of end cover 3 of left slide block 2. At least two U-shaped... The end of the U-shaped hose 14 is connected to the oil distribution rod 13. At least two hydraulic push rods 15 are provided inside the end cap 3. The ends of the hydraulic push rods 15 extend into the cylinder 9. The ends of the hydraulic push rods 15 are connected to the U-shaped hose 14 and the piston 10, respectively, supplying hydraulic oil to the oil distribution rod 13. The hydraulic oil, through the U-shaped hose 14, pushes the piston 10 forward and backward via the hydraulic push rods 15. The piston 10 pushes the end teeth of the first positioning gear 11 and the second positioning gear 12 to mesh, achieving coaxial and relatively independent rotation. A pressure plate 4 is provided at the rear end of the left slide block 2. The rotary seat 16 rotates within the left slide block 2 via the pressure plate 4. The rear end of the left slide block 2 is connected to the rotary seat 16. The rotary shaft 8 rotates coaxially with the rotary seat 16. A large gear 17 is fixedly provided at the front end of the rotary seat 16.The left slide 2 has a bevel gear shaft 18 inside, with its lower end meshing with a large gear 17. A rotating shaft 19 is inserted into the outside of the left slide 2, with a bevel gear 20 at its end, meshing with the bevel gear shaft 18. A small gear 31 is located at the rear end of the bevel gear shaft 18, meshing with the large gear 17 of the rotary seat 16. The rotating shaft 19 is adjusted manually or automatically. The bevel gear 20 at the end of the rotating shaft 19 meshes with the bevel gear shaft 18, and the small gear 31 at the end of the bevel gear shaft 18 meshes with the large gear 17, causing the rotary seat 16 to rotate. The adjustment is done by fine-tuning according to a scale. One end of the rotary seat 16 extends rearward, with a clamping part 21 at the extended portion. The outer end of the right clamping part is a right front fixed body 22, with a right slide 23 movably connected to the inner side of the right front fixed body 22. The right front fixed body 22 and the right slide 23 are slidably connected via a sliding insertion structure. A right lead screw seat 24 is provided on the end face of the right front fixed body 22. A right auxiliary moving block 25 is provided on the right slide 23. A right lead screw 26 is vertically mounted on the right auxiliary moving block 25, and the right lead screw 26 is rotatably connected to the right auxiliary moving block 25. The right lead screw 26 passes through the right lead screw seat 24. The adjustment method is the same as that of the left front fixed body 1 and the left slide 2. A clamping part 21 is provided on the inner end of the right slide 23. The side end of the right slide 23 is axially connected to the right end of the crankshaft. The positioning plate 28 is connected, but is not shown in the view because the connection method is the same as that of the left end. The outer ring of the clamping part 21 of the right slide 23 of the rotary seat 16 is a clamping block 32, and the inner ring of the clamping block 32 is provided with a bearing 33. The gap between the bearing 33 and the crankshaft is adjusted by the wedge block 34 between the bearing 33 and the clamping block 32. The clamping block 32 applies pressure to the bearing 33 to clamp the crankshaft. The degree of clamping of the bearing 33 is adjusted by changing the in-and-out distance of the wedge block 34.

[0034] The crankshaft is positioned using the main shaft diameters at both ends. The front eccentric indexing fixture primarily clamps, indexes, positions, and locks the crankshaft. Crankshaft clamping is achieved through a manual pressure plate mechanism. Crankshaft indexing is accomplished by a hydraulic cylinder driving a ratchet gear mechanism, rotating the crankshaft by a certain angle in one direction with each action, thus achieving coarse positioning of the crankshaft's alignment angle. Crankshaft division is achieved through a hydraulic cylinder driving a precision three-tooth disc structure, achieving an indexing accuracy of up to 2". The rear eccentric fixture only clamps; indexing is performed by the front fixture.

[0035] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision crankshaft eccentric clamp, comprising a left clamping body and a right clamping body at both ends of the crankshaft, characterized in that... The above; Left clamp body: The outer end of the left clamp body is a left front fixed body (1). The left front fixed body (1) is movably connected to the left slide (2). The left slide (2) is fixedly provided with an end cap (3) at the front end. The left front fixed body (1) and the left slide (2) are slidably connected by a dovetail sliding structure. The left front fixed body (1) is provided with a left lead screw seat (7). The left slide (2) is provided with a left auxiliary moving block (5) at the end cap (3). The left auxiliary moving block (5) is vertically provided with a left lead screw (6). The left lead screw (6) is rotatably connected to the left auxiliary moving block (5). The left slide (2) is connected to the left front end of the crankshaft via the left lead screw seat (7). A cylinder (9) is provided between the left slide (2) and the rotary shaft (8). A piston (10) is provided inside the cylinder (9). The piston (10) has a recessed end. A first positioning gear (11) is provided inside the recessed end of the piston (10). The first positioning gear (11) rotates coaxially with the piston (10). The piston (10) rotates coaxially with the left slide (2). A second positioning gear (12) is provided on the outer end face of the rotary shaft (8). The two positioning gear plate (12) rotates coaxially with the rotary shaft (8). The front end of the left front fixed body (1) is provided with an oil distribution rod (13). The oil distribution rod (13) extends all the way to the front of the end cover (3) of the left slide (2). The end cover (3) of the left slide (2) is provided with at least two U-shaped hoses (14). The ends of the U-shaped hoses (14) are connected to the oil distribution rods (13). The end cover (3) is provided with at least two hydraulic push rods (15). The ends of the hydraulic push rods (15) extend into the oil cylinder (9). The ends of the hydraulic push rods (15) are respectively connected to the U-shaped hoses (14) and the end cover (3). The piston (10) is connected, and the rear end of the left slide (2) is connected to a rotary seat (16). The front end of the rotary seat (16) is fixed with a large gear (17). The left slide (2) is laterally provided with a bevel gear shaft (18). The lower end of the bevel gear shaft (18) meshes with the large gear (17). The left slide (2) is rotatably inserted with a rotating shaft (19). The end of the rotating shaft (19) is provided with a bevel gear (20). The bevel gear (20) meshes with the bevel gear shaft (18). One end of the rotary seat (16) extends backward, and the extended part is provided with a clamping part (21). Right clamp body: The outer end of the right clamp body is a right front fixed body (22). The right front fixed body (22) is movably connected to a right slide block (23). The right front fixed body (22) and the right slide block (23) are slidably connected by a sliding insertion structure. A right lead screw seat (24) is provided on the end face of the right front fixed body (22). A right auxiliary moving block (25) is provided on the right slide block (23). A right lead screw (26) is vertically provided on the right auxiliary moving block (25). The right lead screw (26) is rotatably connected to the right auxiliary moving block (25). The lever (26) passes through the right lead screw seat (24). The inner end of the right slide (23) is provided with a clamping part (21). The side end of the right slide (23) is connected to the right end of the crankshaft. A limiting bolt (27) is provided between the left front fixed body (1) and the left slide (2). The limiting bolt (27) is set in the opposite position of the left lead screw (6). An axial positioning plate (28) is provided at the end of the rotary shaft (8) and the right slide (23). The rotary shaft (8), the right slide (23) and the crankshaft are connected through the axial positioning plate (28).

2. A high-precision crankshaft eccentric clamp according to claim 1, characterized in that... The rotary shaft (8) rotates coaxially with the rotary seat (16), and the rotary shaft (8) rotates independently relative to the left slide (2). A rear bearing sleeve (29) is provided between the middle part of the rotary shaft (8) and the middle part of the left slide (2), and a front bearing sleeve (30) is provided between the front part of the rotary shaft (8) and the front part of the left slide (2).

3. A high-precision crankshaft eccentric clamp according to claim 1, characterized in that... The first positioning toothed disc (11) is fixed relative to the inner end face of the piston (10), and the second positioning toothed disc (12) is fixed relative to the rotating shaft (8). The first positioning toothed disc (11) and the second positioning toothed disc (12) are end toothed discs, and the end tooth directions of the first positioning toothed disc (11) and the second positioning toothed disc (12) are opposite.

4. A high-precision crankshaft eccentric clamp according to claim 1, characterized in that... The rear end of the bevel gear shaft (18) is provided with a small gear (31), which meshes with the large gear (17) of the rotary seat (16).

5. A high-precision crankshaft eccentric clamp according to claim 1, characterized in that... The outer ring of the clamping part (21) of the right slide (23) of the rotary seat (16) is a clamping block (32), and the inner ring of the clamping block (32) is provided with a bearing block (33). The gap between the bearing block (33) and the crankshaft is adjusted by the wedge block (34) between the bearing block (33) and the clamping block (32).

6. A high-precision crankshaft eccentric clamp according to claim 1, characterized in that... The left slide (2) is provided with a pressure plate (4) at its rear end, and the rotary seat (16) rotates in the left slide (2) through the pressure plate (4).

7. A high-precision crankshaft eccentric clamp according to claim 1, characterized in that... The oil cylinder (9) and piston (10) are arranged around the rotary shaft (8), and the oil cylinder (9) and rotary shaft (8) are sealed relative to each other.

Images