Crankshaft multi-gear dimension error detection device

Abstract

The invention discloses a crankshaft multi-gear size error detection device, and relates to the technical field of crankshaft production detection, and the technical scheme is that the crankshaft multi-gear size error detection device comprises a rack, two through grooves are formed in the top of the rack, an L-shaped frame is fixedly connected to the top of the rack, four electric cylinders are fixedly embedded in the top of the L-shaped frame, and a moving plate is fixedly connected to the bottom ends of the four electric cylinders; the front side of the moving plate is fixedly connected with a plurality of dial indicators. And the number of the supporting blocks is two, the two supporting blocks are both fixedly connected to the top of the rack and located between the two through grooves, and the beneficial effects are that the two rotating blocks can rotate by controlling the motor to rotate forwards, and then the crankshaft can rotate under the action of the fixing assembly; in this way, the crankshaft does not need to be rotated manually during detection, the phenomenon that the end of the crankshaft moves up and down due to hand shaking is avoided, it can be guaranteed that the crankshaft rotates on the same axis, and the accuracy of the detection result can be guaranteed during detection.

Description

Technical Field

[0001] The invention relates to the technical field of crankshaft production detection, and in particular to a crankshaft multi-gear dimensional error detection device. Background Art

[0002] The engine crankshaft is one of the most important parts in the engine. Its function is to convert the gas force transmitted from the piston and connecting rod into torque output to drive the power tools connected to it, such as the flywheel and the front pulley, etc. In addition, it also drives the engine's own valve mechanism and its various moving accessories. The "gear" of the crankshaft generally refers to the shaft diameter part of the crankshaft, which is mainly used to install different parts. Taking a four-cylinder in-line engine as an example, the five main journals of the crankshaft are five gears. When the crankshaft is produced, the five main journals of the crankshaft need to be tested for coaxiality error, so a dimensional error detection device is needed;

[0003] After searching, the patent with publication number CN109059739B is found. In this patent, the crankshaft needs to be placed on a V-shaped bearing seat during testing, and then the crankshaft is manually rotated to achieve testing. When the crankshaft is manually rotated, the end of the crankshaft moves up and down away from the V-shaped bearing seat and does not contact the V-shaped bearing seat due to hand shaking, so that the crankshaft does not rotate on the same axis. In this way, the test result is inaccurate and the error is large during testing, so it needs to be improved;

[0004] Therefore, it is necessary to invent a crankshaft multi-gear dimensional error detection device. Summary of the invention

[0005] To this end, the present invention provides a crankshaft multi-gear dimensional error detection device to solve the problems in the background technology.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a crankshaft multi-gear dimensional error detection device, comprising:

[0007] A frame, wherein two through slots are provided on the top of the frame, an L-shaped frame is fixedly connected to the top of the frame, four electric cylinders are fixedly embedded on the top of the L-shaped frame, a moving plate is fixedly connected to the bottom ends of the four electric cylinders, and a plurality of dial indicators are fixedly connected to the front side of the moving plate;

[0008] A support block, which is provided with two, the two support blocks are fixedly connected to the top of the frame and located between the two through slots, the two support blocks are embedded with a rotating block, the two rotating blocks are fixedly embedded with a shell, the top of the frame is fixedly connected with a box body 1, both sides of the box body 1 are fixedly embedded with a pipe 1, the two pipes 1 are set in a bent shape, a piston 1 is slidably provided inside the box body 1, a push rod is fixedly connected between the piston 1 and the moving plate, and two fixed components are provided between the two pipes 1;

[0009] The housing is fixedly connected to one side of the frame, a motor is fixedly connected to the rear side of the housing, a rotating shaft 1 is fixedly connected to the output shaft of the motor, the rotating shaft 1 penetrates the housing, two bevel gears 1 are sleeved on the outside of the rotating shaft 1, the two bevel gears 1 are connected to the rotating shaft 1 through a one-way bearing, a rotating shaft 2 is embedded in the frame, one end of the rotating shaft 2 is located inside the housing, one end of the rotating shaft 2 is fixedly connected to a bevel gear 2, the bevel gear 2 is meshed with one of the bevel gears 1, and a driving assembly is provided between the rotating shaft 2 and the two rotating blocks;

[0010] The brackets are provided in two pieces, the two brackets are fixedly connected to the top of the frame, the two brackets are located inside the two support blocks, and the two brackets are installed with three rollers;

[0011] An auxiliary component is used for scanning and photographing a crankshaft.

[0012] Preferably, two support plates are fixedly connected to the top of the frame, and the two support plates are respectively fixedly sleeved on the outside of the two pipes, and a positioning rod is fixedly connected to the inner wall of the rear side of the L-shaped frame, and the positioning rod passes through the movable plate and is slidably connected thereto, and the driving assembly includes two sprockets and chains sleeved on the outside of the two sprockets, and the two sprockets are respectively fixedly sleeved on the outside of the rotating shaft and the rotating block, and the two sprockets are connected by a chain drive, and the chain passes through the through groove.

[0013] Preferably, the fixing assembly includes a second box body, which is fixedly embedded in one side of the shell, one end of the pipe is embedded in one side of the second box body and connected to the second box body through a sealed bearing, the other side of the second box body is provided with a through hole, a second piston is slidably provided inside the second box body, a square rod is fixedly connected to one side of the second piston, the square rod passes through the through hole and is slidably connected to the second piston, a stabilizing block is fixedly connected to the inside of the shell, a worm is embedded in the stabilizing block, the worm is set to be hollow, and one end of the square rod extends to the inside of the worm.

[0014] Preferably, the inner wall of the worm is provided with a spiral groove, the bottom of the square rod is fixedly connected with a protrusion, the protrusion is embedded in the spiral groove and slidably connected thereto, the outer side of the second box body is fixedly sleeved with a stabilizing plate, the stabilizing plate is fixedly connected to the inside of the shell, the inside of the shell is connected with two rotating shafts three, one side of the two rotating shafts three are fixedly connected with a rotating plate, the inner sides of the two rotating plates are fixedly connected with a clamping block, the two rotating plates are provided with a through groove, the outer sides of the two rotating shafts three are fixedly sleeved with worm wheels, the two worm wheels respectively penetrate the two through grooves, the two worm wheels are meshed with the worm, the inner walls on the front and rear sides of the shell are fixedly connected with arc plates, the two arc plates respectively penetrate the two rotating plates and are slidably connected thereto, and one side of the second piston is fixedly connected with two rubber blocks.

[0015] Preferably, the auxiliary component includes a cover plate, which is slidably embedded in the top of the frame, and two cameras are fixedly connected to the bottom of the cover plate, and two box bodies three are fixedly connected to the top of the frame, and pistons three are slidably provided inside the two box bodies three, and moving rods one are fixedly connected between the two pistons three and the moving plate, the front inner wall of the frame is fixedly connected to a fixed plate, and the rear side of the fixed plate is fixedly connected to two box bodies four, and pistons four are slidably provided inside the two box bodies four, and moving rods two are fixedly connected between the two pistons four and the cover plate, and pipes two are fixedly embedded in the bottoms of the two box bodies three, and the ends of the two pipes two are respectively fixedly embedded in the bottoms of the two box bodies four, and the two pipes two pass through the top of the frame and are fixedly connected thereto.

[0016] Preferably, two limit rods are fixedly connected to the bottom of the cover plate, and the two limit rods both penetrate the fixed plate and are slidably connected thereto. A reciprocating screw is embedded in the frame, and one end of the reciprocating screw is located inside the shell, and the reciprocating screw is located on the front side of the second rotating shaft. A sliding seat is provided on the outside of the reciprocating screw, and the sliding seat is connected to the reciprocating screw through a ball screw pair. A cleaning pad is fixedly connected to the front side of the sliding seat, and the cleaning pad fits with the lenses of the two cameras. One end of the reciprocating screw is fixedly connected to bevel gear three, and bevel gear three is meshed with another bevel gear one. A guide rod is fixedly connected to the inside of the frame, and the guide rod penetrates the sliding seat and is slidably connected thereto.

[0017] Preferably, the rotating block is connected to the supporting block via a bearing, the first rotating shaft is connected to the housing via a bearing, and the second rotating shaft is connected to the frame via a bearing.

[0018] Preferably, the worm is connected to the stabilizing block via a bearing, and the rotating shaft three is connected to the housing via a bearing.

[0019] Preferably, the reciprocating screw is connected to the frame via a bearing.

[0020] The beneficial effects of the present invention are:

[0021] 1. Place the crankshaft on two brackets to contact the rollers, and then the electric cylinder works to move the moving plate downward, so that the dial indicator will contact the main journal of the crankshaft. The moving plate can also work the two fixing components when moving downward, so as to clamp and fix the two ends of the crankshaft. Then, the two rotating blocks can be rotated by controlling the motor to rotate forward, and then the crankshaft can be rotated under the action of the fixing components. In this way, there is no need to manually rotate the crankshaft during detection, and the crankshaft end will not move up and down due to hand shaking. At the same time, it can also ensure that the crankshaft rotates on the same axis, so that the accuracy of the detection result can be guaranteed during detection.

[0022] 2. By designing auxiliary components, the two cameras can also perform a full-range scan and capture of the crankshaft during inspection. Then, it can be determined whether there are hidden cracks on the back of the crankshaft based on the captured images. The other two cameras are designed to be liftable. When not in use, the cameras can be stored in the rack to avoid dust adhering to the cameras, thereby ensuring the clarity of the shots. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0026] Figure 2 A front cross-sectional view provided by the present invention;

[0027] Figure 3 The present invention provides Figure 2 A in the enlarged view;

[0028] Figure 4 A side cross-sectional view provided by the present invention;

[0029] Figure 5 A three-dimensional diagram of the components provided by the present invention, including a box body 1, a pipe 1, a rotating block, a reciprocating screw, a sliding seat, etc.;

[0030] Figure 6 A three-dimensional diagram of the box body 3, box body 4, fixing plate, cover plate and other components provided by the present invention;

[0031] Figure 7 The present invention provides Figure 6 Rear exploded view;

[0032] Figure 8 The present invention provides Figure 1Rear view;

[0033] Fig. 9 A schematic diagram of placing the crankshaft provided by the present invention on a bracket;

[0034] In the figure: 1, frame; 2, L-shaped frame; 3, electric cylinder; 4, moving plate; 5, dial indicator; 6, support block; 7, rotating block; 8, shell; 9, box body 1; 10, pipe 1; 11, piston 1; 12, push rod; 13, shell; 14, motor; 15, shaft 1; 16, bevel gear 1; 17, shaft 2; 18, bevel gear 2; 19, bracket; 20, roller; 21, support plate; 22, positioning rod; 23, sprocket; 24, chain; 25, box body 2; 26, piston 2; 27, square rod; 28, stabilizing block ; 29. ​​Worm; 30. Spiral groove; 31. Bump; 32. Stabilizing plate; 33. Shaft three; 34. Rotating plate; 35. Block; 36. Worm wheel; 37. Arc plate; 38. Rubber block; 39. Cover plate; 40. Camera; 41. Box three; 42. Piston three; 43. Moving rod one; 44. Fixed plate; 45. Box four; 46. Piston four; 47. Moving rod two; 48. Pipe two; 49. Limit rod; 50. Reciprocating screw; 51. Sliding seat; 52. Cleaning pad; 53. Bevel gear three; 54. Guide rod. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] Refer to the attached Figure 1 -Attached Fig. 9 The present invention provides a crankshaft multi-gear dimensional error detection device, comprising:

[0037] A frame 1, with two through slots on the top of the frame 1, an L-shaped frame 2 is fixedly connected to the top of the frame 1, four electric cylinders 3 are fixedly embedded on the top of the L-shaped frame 2, a moving plate 4 is fixedly connected to the bottom ends of the four electric cylinders 3, and a plurality of dial indicators 5 are fixedly connected to the front side of the moving plate 4;

[0038] The support block 6 is provided in two pieces, and the two support blocks 6 are fixedly connected to the top of the frame 1 and are located between the two through slots. The two support blocks 6 are embedded with a rotating block 7, and the two rotating blocks 7 are fixedly embedded with a shell 8. A box body 9 is fixedly connected to the top of the frame 1, and pipes 10 are fixedly embedded on both sides of the box body 9. The two pipes 10 are both arranged in a bent shape. A piston 11 is slidably provided inside the box body 9, and a push rod 12 is fixedly connected between the piston 11 and the movable plate 4, and two fixed components are provided between the two pipes 10;

[0039] The housing 13 is fixedly connected to one side of the frame 1, and a motor 14 is fixedly connected to the rear side of the housing 13. The output shaft of the motor 14 is fixedly connected to a rotating shaft 15, which penetrates the housing 13. Two bevel gears 16 are sleeved on the outside of the rotating shaft 15. Both bevel gears 16 are connected to the rotating shaft 15 through a one-way bearing. A rotating shaft 2 17 is embedded in the frame 1, and one end of the rotating shaft 2 17 is located inside the housing 13. A bevel gear 2 18 is fixedly connected to one end of the rotating shaft 2 17. The bevel gear 2 18 is meshed with one of the bevel gears 16. A driving assembly is provided between the rotating shaft 2 17 and the two rotating blocks 7;

[0040] There are two brackets 19, both brackets 19 are fixedly connected to the top of the frame 1, the two brackets 19 are located inside the two support blocks 6, and three rollers 20 are installed on the two brackets 19;

[0041] An auxiliary component, which is used to scan and photograph the crankshaft;

[0042] In this embodiment, the two rotating blocks 7 can be rotated by controlling the motor 14 to rotate forward, and then the crankshaft can be rotated under the action of the fixed component, so that there is no need to manually rotate the crankshaft during detection, and the end of the crankshaft will not move up and down due to hand shaking. At the same time, it can also ensure that the crankshaft rotates on the same axis, so that the accuracy of the detection result can be guaranteed during detection;

[0043] Among them, in order to achieve the purpose of transmission, the device adopts the following technical solutions: two support plates 21 are fixedly connected to the top of the frame 1, and the two support plates 21 are fixedly sleeved on the outside of the two pipes 10 respectively. A positioning rod 22 is fixedly connected to the inner wall of the rear side of the L-shaped frame 2. The positioning rod 22 penetrates the movable plate 4 and is slidably connected thereto. The driving assembly includes two sprocket wheels 23 and a chain 24 sleeved on the outside of the two sprocket wheels 23. The two sprocket wheels 23 are fixedly sleeved on the outside of the rotating shaft 15 and the rotating block 7 respectively. The two sprocket wheels 23 are driven and connected by the chain 24, and the chain 24 penetrates the through groove. The chain 24 can make the rotating block 7 and the rotating shaft 2 17 rotate simultaneously;

[0044] Among them, in order to achieve the purpose of transmission, the present device adopts the following technical solutions: the fixed component includes a box body 25, the box body 25 is fixedly embedded in one side of the shell 8, one end of the pipe 10 is embedded in one side of the box body 25 and connected with it through a sealed bearing, the other side of the box body 25 is provided with a through hole, a piston 26 is slidably provided inside the box body 25, a square rod 27 is fixedly connected to one side of the piston 26, the square rod 27 passes through the through hole and is slidably connected with it, a stabilizing block 28 is fixedly connected to the shell 8, a worm 29 is embedded on the stabilizing block 28, the worm 29 is set to be hollow, one end of the square rod 27 extends to the inside of the worm 29, a spiral groove 30 is provided on the inner wall of the worm 29, and a convex block 31 is fixedly connected to the bottom of the square rod 27, and the convex block 31 is embedded in the spiral groove 30 and is slidably connected with it. , the outer sleeve of the box body 25 is provided with a stabilizing plate 32, and the stabilizing plate 32 is fixedly connected to the inside of the shell 8. The inside of the shell 8 is connected with two rotating shafts 33, and one side of the two rotating shafts 33 is fixedly connected with a rotating plate 34, and the inner sides of the two rotating plates 34 are fixedly connected with a clamping block 35. The two rotating plates 34 are provided with a through groove, and the outer sides of the two rotating shafts 33 are fixedly provided with a worm gear 36, and the two worm gears 36 penetrate the two through grooves respectively, and the two worm gears 36 are meshed with the worm 29. The inner walls of the front and rear sides of the shell 8 are fixedly connected with arc plates 37, and the two arc plates 37 penetrate the two rotating plates 34 respectively and are slidably connected thereto. One side of the piston 26 is fixedly connected with two rubber blocks 38. The design of the fixing component can clamp and fix the crankshaft, so that the crankshaft and the rotating block 7 rotate at the same time;

[0045] Among them, in order to achieve the purpose of all-round scanning and shooting of the crankshaft, the present device is implemented by the following technical solutions: the auxiliary component includes a cover plate 39, the cover plate 39 is slidably embedded in the top of the frame 1, and two cameras 40 are fixedly connected to the bottom of the cover plate 39, and two box bodies 3 41 are fixedly connected to the top of the frame 1, and pistons 3 42 are slidably arranged inside the two box bodies 3 41, and moving rods 1 43 are fixedly connected between the two pistons 3 42 and the moving plate 4, and a fixed plate 44 is fixedly connected to the inner wall of the front side of the frame 1, and two box bodies 45 are fixedly connected to the rear side of the fixed plate 44, and pistons 46 are slidably arranged inside the two box bodies 45, and moving rods 2 47 are fixedly connected between the two pistons 46 and the cover plate 39, and pipes 2 48 are fixedly embedded in the bottom of the two box bodies 3 41, and the ends of the two pipes 2 48 are fixedly embedded in the bottom of the two box bodies 45, respectively. The second track 48 passes through the top of the frame 1 and is fixedly connected thereto. Two limit rods 49 are fixedly connected to the bottom of the cover plate 39. The two limit rods 49 pass through the fixed plate 44 and are slidably connected thereto. A reciprocating screw 50 is embedded in the frame 1. One end of the reciprocating screw 50 is located inside the shell 13. The reciprocating screw 50 is located on the front side of the second rotating shaft 17. A sliding seat 51 is sleeved on the outside of the reciprocating screw 50. The sliding seat 51 is connected to the reciprocating screw 50 through a ball screw pair. A cleaning pad 52 is fixedly connected to the front side of the sliding seat 51. The cleaning pad 52 fits with the lenses of the two cameras 40. One end of the reciprocating screw 50 is fixedly connected to a bevel gear three 53. The bevel gear three 53 is meshed with another bevel gear one 16. A guide rod 54 is fixedly connected inside the frame 1. The guide rod 54 passes through the sliding seat 51 and is slidably connected thereto. The design of the auxiliary component can perform all-round scanning and shooting of the crankshaft.

[0046] Among them, in order to achieve the purpose of reducing wear, the device adopts the following technical solutions: the rotating block 7 is connected to the supporting block 6 through a bearing, the rotating shaft 15 is connected to the outer shell 13 through a bearing, the rotating shaft 2 17 is connected to the frame 1 through a bearing, the worm 29 is connected to the stabilizing block 28 through a bearing, the rotating shaft 3 33 is connected to the shell 8 through a bearing, and the reciprocating screw 50 is connected to the frame 1 through a bearing. The bearing connection can reduce wear.

[0047] The use process of the present invention is as follows: when the crankshaft needs to be tested for coaxiality, the crankshaft is placed on two brackets 19, so that the crankshaft is in contact with the roller 20, and the end of the crankshaft is located between the two blocks 35, such as Fig. 9 As shown, the four electric cylinders 3 are then controlled to work, so that the moving plate 4 can be moved downward, thereby moving the five dial gauges 5 downward, so that the measuring heads of the dial gauges 5 will contact the five main journals of the crankshaft;

[0048] The downward movement of the movable plate 4 can also make the push rod 12 and the piston 11 move downward, and then under the action of the two pipes 10, the air in the box body 1 9 can enter the two box bodies 25, and then the two fixed components can work. The following is a detailed description of a single fixed component as an example: when the air enters the box body 25, it can push the piston 26 to move right, thereby making the square rod 27 and the protrusion 31 move right. Since the protrusion 31 is embedded in the spiral groove 30 and slidably connected thereto, when the protrusion 31 moves, the worm 29 can be rotated, and the rotation of the worm 29 drives the two worm wheels 36 to rotate, and the rotation of the two worm wheels 36 drives the two rotating shafts 33 to rotate, and the rotation of the two rotating shafts 33 drives the two rotating plates 34 to rotate, so that the two clamping blocks 35 can clamp and fix the end of the crankshaft. The movement of the piston 26 can also move the two rubber blocks 38. After the crankshaft is clamped and fixed, the two rubber blocks 38 will contact with the worm 29, thereby applying pressure to the worm 29;

[0049] After the fixing is completed, the motor 14 is controlled to rotate forward. The forward rotation of the motor 14 can rotate the shaft 15. Since the two bevel gears 16 are connected to the shaft 15 through a one-way bearing, the bevel gear 16 on the rear side rotates when the motor 14 rotates forward, and the bevel gear 16 on the front side does not rotate. The rotation of the bevel gear 16 on the rear side drives the bevel gear 2 18 to rotate. The rotation of the bevel gear 2 18 drives the shaft 2 17 to rotate. The rotation of the shaft 2 17 drives the two chains 24 to rotate. The rotation of the two chains 24 drives the two rotating blocks 7 to rotate, so that the two housings 8 can be rotated. Then, under the action of the two fixing components, the crankshaft can be rotated. After the crankshaft rotates one circle, the maximum and minimum values ​​of the numerical changes of every five dial indicators 5 are recorded. The difference between the maximum and minimum values ​​of the data in the five gears is the coaxiality error of the crankshaft to be tested, thereby realizing the coaxiality size error detection;

[0050] When the movable plate 4 moves downward, the two movable rods 1 43 can also move downward, so that the two pistons 3 42 can move downward, and then the air in the two boxes 3 41 can enter the two boxes 4 45 under the action of the two pipes 2 48. When the air enters the two boxes 4 45, the two pistons 46 and the two movable rods 2 47 will move upward, so that the cover plate 39 can be pushed to move upward. The upward movement of the cover plate 39 can move the two cameras 40 upward. When the fixing assembly clamps the end of the crankshaft, the two cameras 40 just move to the front of the crankshaft. In this way, when the coaxiality size error is detected, the two cameras 40 can perform a full-range scanning and shooting of the crankshaft, and then the crankshaft can be judged based on the captured images to avoid hidden damage and cracks.

[0051] When the coaxiality dimension error detection is completed, the electric cylinder 3 is controlled to move the moving plate 4 upward and reset, so that the piston 11 will move upward, and then the air in the two box bodies 25 will be sucked away, and then the two rotating plates 34 will be reversed and opened, thereby releasing the fixation of the crankshaft, and at the same time, the two pistons 3 42 will also move upward, so that the air in the two box bodies 4 45 can be sucked away, so that the cover plate 39 and the camera 40 will move downward and reset, and then the crankshaft can be removed and a new crankshaft can be placed, and then the detection will continue with the same principle;

[0052] When the camera 40 moves downward and resets, the cleaning pad 52 will contact the lens of the camera 40. At this time, the motor 14 can be controlled to reverse. The same principle can make the bevel gear 16 on the front side rotate, while the bevel gear 16 on the rear side does not rotate. The rotation of the bevel gear 16 on the front side drives the bevel gear 3 53 to rotate. The rotation of the bevel gear 3 53 drives the reciprocating screw 50 to rotate. The rotation of the reciprocating screw 50 drives the sliding seat 51 and the cleaning pad 52 to move left and right continuously. In this way, the dust on the lens of the camera 40 can be wiped, thereby maintaining the clarity of the shooting.

[0053] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the above technical solutions or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention belongs to the scope of protection claimed by the present invention.

Claims

1. A crankshaft multi-gear dimensional error detection device, It is characterized in that include: A frame (1), wherein two through slots are formed on the top of the frame (1), an L-shaped frame (2) is fixedly connected to the top of the frame (1), four electric cylinders (3) are fixedly embedded on the top of the L-shaped frame (2), a movable plate (4) is fixedly connected to the bottom ends of the four electric cylinders (3), and a plurality of dial indicators (5) are fixedly connected to the front side of the movable plate (4); A support block (6), which is provided in two pieces, the two support blocks (6) are fixedly connected to the top of the frame (1) and are located between the two through grooves, the two support blocks (6) are embedded with a rotating block (7), the two rotating blocks (7) are fixedly embedded with a shell (8), the top of the frame (1) is fixedly connected with a box body (9), both sides of the box body (9) are fixedly embedded with a pipe (10), the two pipes (10) are arranged in a bent shape, a piston (11) is slidably provided inside the box body (9), a push rod (12) is fixedly connected between the piston (11) and the movable plate (4), and two fixed components are provided between the two pipes (10); A housing (13) is fixedly connected to one side of the frame (1); a motor (14) is fixedly connected to the rear side of the housing (13); an output shaft of the motor (14) is fixedly connected to a rotating shaft (15); the rotating shaft (15) passes through the housing (13); two bevel gears (16) are sleeved on the outside of the rotating shaft (15); the two bevel gears (16) are connected to the rotating shaft (15) through a one-way bearing; a rotating shaft (17) is embedded on the frame (1); one end of the rotating shaft (17) is located inside the housing (13); one end of the rotating shaft (17) is fixedly connected to a bevel gear (18); the bevel gear (18) is meshed with one of the bevel gears (16); a driving assembly is provided between the rotating shaft (17) and the two rotating blocks (7); A bracket (19), which is provided in two pieces, the two brackets (19) are both fixedly connected to the top of the frame (1), the two brackets (19) are located inside the two support blocks (6), and three rollers (20) are installed on the two brackets (19); An auxiliary component is used for scanning and photographing a crankshaft.

2. A crankshaft multi-gear dimensional error detection device according to claim 1, Features: The frame (1) is fixedly connected to two support plates (21) on the top, and the two support plates (21) are respectively fixedly sleeved on the outside of the two pipes (10). The inner wall of the rear side of the L-shaped frame (2) is fixedly connected to a positioning rod (22), and the positioning rod (22) passes through the movable plate (4) and is slidably connected thereto. The driving assembly comprises two sprocket wheels (23) and a chain (24) sleeved on the outside of the two sprocket wheels (23). The two sprocket wheels (23) are respectively fixedly sleeved on the outside of the rotating shaft (15) and the rotating block (7). The two sprocket wheels (23) are connected by driving via the chain (24), and the chain (24) passes through the through groove.

3. A crankshaft multi-gear dimensional error detection device according to claim 1, Features: The fixing assembly comprises a second box body (25), the second box body (25) is fixedly embedded in one side of the shell (8), one end of the first pipe (10) is embedded in one side of the second box body (25) and connected to the second box body (25) through a sealing bearing, the other side of the second box body (25) is provided with a through hole, a second piston (26) is slidably arranged inside the second box body (25), one side of the second piston (26) is fixedly connected to a square rod (27), the square rod (27) passes through the through hole and is slidably connected to the second piston (26), the shell (8) is fixedly connected to a stabilizing block (28), a worm (29) is embedded in the stabilizing block (28), the worm (29) is set to be hollow, and one end of the square rod (27) extends into the inside of the worm (29).

4. A crankshaft multi-gear dimensional error detection device according to claim 3, Features: The inner wall of the worm (29) is provided with a spiral groove (30), the bottom of the square rod (27) is fixedly connected with a protrusion (31), the protrusion (31) is embedded in the spiral groove (30) and is slidably connected thereto, the outer part of the second box body (25) is fixedly sleeved with a stabilizing plate (32), the stabilizing plate (32) is fixedly connected to the inside of the shell (8), the inside of the shell (8) is connected with two rotating shafts (33), one side of the two rotating shafts (33) is fixedly connected with a rotating plate (34), the inner sides of the two rotating plates (34) are fixed A clamping block (35) is connected, a through groove is provided on the two rotating plates (34), a worm gear (36) is fixedly sleeved on the outside of the two rotating shafts (33), the two worm gears (36) respectively penetrate the two through grooves, the two worm gears (36) are meshedly connected with the worm (29), the inner walls on both the front and rear sides of the housing (8) are fixedly connected with arc plates (37), the two arc plates (37) respectively penetrate the two rotating plates (34) and are slidably connected thereto, and two rubber blocks (38) are fixedly connected to one side of the piston (26).

5. A crankshaft multi-gear dimensional error detection device according to claim 1, Features: The auxiliary component comprises a cover plate (39), the cover plate (39) is slidably embedded in the top of the frame (1), the bottom of the cover plate (39) is fixedly connected to two cameras (40), the top of the frame (1) is fixedly connected to two boxes (41), pistons (42) are slidably arranged inside the two boxes (41), and moving rods (43) are fixedly connected between the two pistons (42) and the moving plate (4), a fixed plate (44) is fixedly connected to the inner wall of the front side of the frame (1), and the fixed plate (44) is fixedly connected to the inner wall of the front side of the frame (1). The rear side of the fixed plate (44) is fixedly connected to two box bodies four (45), pistons four (46) are slidably arranged inside the two box bodies four (45), moving rods two (47) are fixedly connected between the two pistons four (46) and the cover plate (39), and pipes two (48) are fixedly embedded in the bottoms of the two box bodies three (41), and the ends of the two pipes two (48) are respectively fixedly embedded in the bottoms of the two box bodies four (45), and the two pipes two (48) pass through the top of the frame (1) and are fixedly connected thereto.

6. A crankshaft multi-gear dimensional error detection device according to claim 5, Features: The bottom of the cover plate (39) is fixedly connected with two limit rods (49), and the two limit rods (49) both penetrate the fixed plate (44) and are slidably connected thereto. A reciprocating screw (50) is embedded in the frame (1), one end of the reciprocating screw (50) is located inside the housing (13), the reciprocating screw (50) is located on the front side of the second rotating shaft (17), and a sliding seat (51) is sleeved on the outside of the reciprocating screw (50), and the sliding seat (51) and the reciprocating screw (50) are connected to each other. The sliding seat (51) is connected via a ball screw pair, a cleaning pad (52) is fixedly connected to the front side of the sliding seat (51), the cleaning pad (52) is fitted with the lenses of the two cameras (40), one end of the reciprocating screw (50) is fixedly connected to a bevel gear three (53), the bevel gear three (53) is meshedly connected with another bevel gear one (16), and a guide rod (54) is fixedly connected inside the frame (1), and the guide rod (54) passes through the sliding seat (51) and is slidably connected thereto.

7. A crankshaft multi-gear dimensional error detection device according to claim 1, Features: The rotating block (7) is connected to the supporting block (6) via a bearing, the rotating shaft 1 (15) is connected to the housing (13) via a bearing, and the rotating shaft 2 (17) is connected to the frame (1) via a bearing.

8. A crankshaft multi-gear dimensional error detection device according to claim 4, Features: The worm (29) is connected to the stabilizing block (28) via a bearing, and the rotating shaft (33) is connected to the housing (8) via a bearing.

9. A crankshaft multi-gear dimensional error detection device according to claim 6, Features: The reciprocating screw (50) is connected to the frame (1) via a bearing.

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