Crankshaft marking machine

Abstract

The invention discloses a crankshaft marking machine, which relates to the technical field of marking machines and comprises a supporting seat, a mounting assembly is arranged at the top of the supporting seat, a rotating assembly for transferring a crankshaft is arranged on the mounting assembly, a supporting plate is fixedly connected to the top of one side of the supporting seat, and a laser marking machine for marking the crankshaft is arranged at the top of the supporting plate. A cleaning assembly for collecting sweeps generated in the marking process is arranged on one side of the laser marking machine. According to the crankshaft marking machine, under the elastic acting force of a third damping spring, an arc-shaped clamping block can be tightly attached to the surface of a crankshaft, stable clamping is achieved, the stability of the crankshaft in the marking process is guaranteed through the clamping mode, marking quality reduction caused by vibration or shaking is reduced, and marking reliability and safety are further improved; and the crankshaft can be effectively vibrated through reciprocating knocking of the knocking rod, so that tiny sweeps or molten metal particles generated in the laser marking process fall off from the marking groove, and a marking area is kept clean.

Description

Technical Field

[0001] The invention relates to the technical field of marking machines, in particular to a crankshaft marking machine. Background Art

[0002] In industrial production, crankshafts are important mechanical parts, and their surface markings and identifications are crucial for product traceability, quality control, and subsequent assembly and maintenance. Traditional crankshaft marking machines mostly use mechanical positioning and clamping methods, placing the crankshaft at the marking position manually or with simple automated devices, and clamping it with a fixed fixture. However, this existing technology has many defects;

[0003] First, in terms of positioning, the positioning accuracy of traditional crankshaft marking machines is limited and often depends on the experience and skills of the operator, resulting in a large position deviation of the crankshaft before marking. This position deviation not only easily causes marking errors or repeated markings, but also makes it impossible for the laser to accurately focus on the crankshaft surface, thereby reducing the overall marking quality;

[0004] Secondly, in terms of clamping, the fixture design of traditional crankshaft marking machines is often relatively simple, lacking sufficient elasticity and adaptability. When clamping the crankshaft, the fixture cannot fit the crankshaft surface tightly, causing the crankshaft to vibrate or shake easily during the marking process. This unstable clamping method not only further reduces the accuracy of marking, but also increases the safety hazards during the marking process.

[0005] In addition, the tiny scraps or molten metal particles generated by traditional crankshaft marking machines during the marking process are often difficult to remove effectively. These scraps are easily stuck in the marking groove, affecting the marking effect and the flatness of the crankshaft surface. Long-term accumulation will also lead to a decrease in the clarity of the marking area. The laser cannot continue to focus accurately on the crankshaft surface, thereby further reducing the accuracy and precision of the marking. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a crankshaft marking machine, which solves the technical problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a crankshaft marking machine, including a support seat, a mounting assembly is arranged on the top of the support seat, a rotating assembly for transferring the crankshaft is arranged on the mounting assembly, a support plate is fixedly connected to the top of one side of the support seat, a laser marking machine for marking the crankshaft is arranged on the top of the support plate, and a cleaning assembly for collecting waste generated during the marking process is arranged on one side of the laser marking machine;

[0008] The rotating assembly includes a positioning shaft rotatably mounted on a support seat, a rotating disk is fixedly connected to the upper and lower ends of the positioning shaft, a mounting groove adapted to the crankshaft is opened on the side wall of the rotating disk, a driving member is arranged at the bottom of the positioning shaft, a knocking member for knocking the crankshaft during marking is arranged on one side of the driving member, and a pressing member for pressing down the crankshaft is arranged in a circular array on the top of the rotating disk.

[0009] As a further preferred embodiment of the present technical solution, the driving member includes a mounting plate fixedly mounted on one side of the top of the support seat, a servo motor is fixedly mounted on the bottom of the mounting plate, the output end of the servo motor is fixedly connected to a pin wheel through a rotating shaft, one side of the pin wheel is adapted to be provided with a groove wheel fixedly mounted on the bottom of the positioning shaft, and a driving gear fixedly mounted on the positioning shaft is provided above the groove wheel.

[0010] As a further preferred embodiment of the present technical solution, the lower pressure member includes a vertical plate fixedly mounted on the top of the rotating disk, a horizontal plate is fixedly connected to the top of the vertical plate, a sliding rod is slidably connected to the horizontal plate in the vertical direction, a circular disk is fixedly connected to the bottom of the sliding rod, a pressure plate is rotatably connected to the bottom of the circular disk, and a complete gear ring is fixedly connected to the outer wall of the pressure plate.

[0011] As a further preferred embodiment of the present technical solution, a rectangular groove is opened on the surface of the sliding board, and a positioning rod is fixedly connected in the rectangular groove, a rectangular block is slidably connected to the positioning rod, one side of the rectangular block is fixedly connected to the disc, and the other side is fixedly connected to the trapezoidal plate, and a second damping spring is arranged on the top of the rectangular block and is sleeved on the positioning rod.

[0012] As a further preferred embodiment of the present technical solution, a sliding board is laterally slidably connected to the surface of the sliding board, an arc-shaped clamping block is connected to the outer end of the sliding board, guide rods are fixedly connected to both sides of the arc-shaped clamping block, and the guide rods are slidably installed on the sliding board, a third damping spring sleeved on the guide rod is arranged between the arc-shaped clamping block and the sliding board, a groove is provided on the surface of the sliding board, and the bottom of the trapezoidal board is slidably installed in the groove, and a pulley installed on the sliding board is arranged on one side of the trapezoidal board.

[0013] As a further preference of the present technical solution, the knocking member includes a connecting rod rotatably mounted on the outer end of the support plate, the bottom of the connecting rod is connected to the rotating shaft through a synchronous pulley transmission member, the top of the connecting rod is fixedly connected to a rotating disk, the rotating disk is rotatably connected to a connecting rod at a position deviating from the center of the circle, the other end of the connecting rod is rotatably connected to a knocking rod, and the knocking rod is slidably mounted on the support plate.

[0014] As a further preferred embodiment of the present technical solution, the mounting assembly includes a fixing seat fixedly mounted on the top of the supporting seat, a lower connecting ring and a connecting frame are fixedly connected to the top of the fixing seat, a plurality of connecting frames are provided, and are located at the outer end of the lower connecting ring, an upper connecting ring is fixedly connected to the inner end of the connecting frame, the positions of the upper connecting ring correspond to those of the lower connecting ring, and the rotating disk is located on the inner sides of the upper connecting ring and the lower connecting ring.

[0015] As a further preferred embodiment of the present technical solution, a feed groove is provided on one side of the surface of the fixing seat, the lower connecting ring, and the upper connecting ring, and a discharge groove is provided on the other side of the surface of the lower connecting ring and the upper connecting ring;

[0016] A material guide rod fixedly mounted on a lower connecting ring is arranged on one side of the material discharging chute, an arc frame is fixedly connected to the inner wall of the lower connecting ring, and the positions of the arc frame and the laser marking machine correspond to each other.

[0017] As a further preferred embodiment of the present technical solution, an arc rod is fixedly connected to the top of the upper connecting ring, and the first part gear ring and the second part gear ring are fixedly connected to the inner wall of the arc rod, the first part gear ring and the second part gear ring are located on both sides of the arc frame, and the first part gear ring and the second part gear ring are both meshed with the complete gear ring for transmission, the arc rod, the upper connecting ring, the lower connecting ring and the fixed seat are rotatably connected to a rotating rod, the top of the rotating rod is fixedly connected to a cleaning roller, and the bottom of the rotating rod is fixedly connected to a driven gear.

[0018] As a further preferred embodiment of the present technical solution, the cleaning assembly includes a collecting box fixedly mounted on one side of the support plate, a pump body is connected to the bottom of the collecting box, a connecting pipe is connected to the top of the collecting box, a dust suction pipe is connected to the other end of the connecting pipe, and the position of the dust suction pipe corresponds to the position of the laser marking machine.

[0019] Compared with the prior art, it has the following beneficial effects:

[0020] Through the intermittent rotation of the pin wheel, groove wheel and positioning shaft, as well as the synchronous movement of the pressure plate, complete gear ring and other components, the crankshaft is accurately positioned before marking. This positioning method not only improves the accuracy of marking and avoids marking errors or repeated markings caused by position deviation, but also ensures that the laser can be accurately focused on the crankshaft surface, thereby improving the overall quality of marking; the arc-shaped clamping block can fit closely to the crankshaft surface under the elastic force of the third damping spring to achieve stable clamping. This clamping method not only ensures the stability of the crankshaft during marking, reduces the decline in marking quality caused by vibration or shaking, but also improves The reliability and safety of marking are improved; the reciprocating tapping of the tapping rod can effectively vibrate the crankshaft, so that the tiny waste chips or molten metal particles generated during the laser marking process fall off from the marking groove, keeping the marking area clean. The removal of waste chips not only helps to maintain the clarity of the marking area, but also ensures that the laser can continue to accurately focus on the crankshaft surface, thereby further improving the accuracy and precision of marking; the tapping action can also make the crankshaft surface smoother, reducing marking quality problems caused by surface unevenness. At the same time, precise positioning and stable clamping also ensure the durability and wear resistance of the marking mark, improving the overall quality of the crankshaft.

[0021] Through the transmission of the driving gear and the driven gear, and the synchronous rotation of the cleaning roller, double cleaning of the crankshaft end and the outer wall is achieved. This double rotation mechanism can cover the outer wall of the crankshaft more comprehensively, significantly improving the cleaning efficiency and effect. The crankshaft surface after cleaning is cleaner and free of impurities, providing a good foundation for subsequent laser marking; the crankshaft is precisely positioned and clamped before marking, ensuring that the laser marking machine can accurately mark the crankshaft surface. At the same time, the crankshaft surface after cleaning is smoother, which helps to obtain clearer and more accurate marking effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the installation components in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the rotating rod, the cleaning roller and the driven gear in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the driving member in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the lower pressing member in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the trapezoidal plate, the sliding plate, the arc-shaped clamping block and the pulley in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the striking member in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the cleaning component in the present invention.

[0030] In the figure: 1, support seat; 2, mounting assembly; 3, rotating assembly; 4, support plate; 5, laser marking machine; 6, cleaning assembly; 21, fixed seat; 22, lower connecting ring; 23, connecting frame; 24, upper connecting ring; 25, feed trough; 26, discharge trough; 27, guide rod; 28, arc frame; 29, arc rod; 210, first part gear ring; 211, second part gear ring; 212, rotating rod; 213, cleaning roller; 214, driven gear; 31, positioning shaft; 32, rotating disk; 33, mounting groove; 34, groove wheel; 35, pin wheel; 36, servo motor; 37, mounting plate; 38. Vertical plate; 39. Horizontal plate; 310. Sliding rod; 311. Disc; 312. Complete gear ring; 313. Pressure plate; 314. First damping spring; 315. Positioning rod; 316. Second damping spring; 317. Trapezoidal plate; 318. Sliding plate; 319. Arc clamping block; 320. Guide rod; 321. Third damping spring; 322. Pulley; 323. Connecting rod; 324. Synchronous pulley transmission member; 325. Rotating disk; 326. Linking rod; 327. Knocking rod; 328. Driving gear; 61. Collecting box; 62. Connecting pipe; 63. Dust suction pipe; 64. Pump body. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1: Combination Figure 1-Figure 8 As shown, the present invention provides a technical solution: a crankshaft marking machine, comprising a support base 1, a mounting assembly 2 is arranged on the top of the support base 1, a rotating assembly 3 for transferring the crankshaft is arranged on the mounting assembly 2, a support plate 4 is fixedly connected to the top of one side of the support base 1, a laser marking machine 5 for marking the crankshaft is arranged on the top of the support plate 4, and a cleaning assembly 6 for collecting waste generated during the marking process is arranged on one side of the laser marking machine 5;

[0033] The rotating assembly 3 includes a positioning shaft 31 rotatably mounted on the support seat 1, and a rotating disk 32 is fixedly connected to the upper and lower ends of the positioning shaft 31. A mounting groove 33 adapted to the crankshaft is provided on the side wall of the rotating disk 32. A driving member is provided at the bottom of the positioning shaft 31, and a knocking member for knocking the crankshaft during marking is provided on one side of the driving member. A pressing member for pressing the crankshaft downward is provided in a circular array on the top of the rotating disk 32;

[0034] The driving member includes a mounting plate 37 fixedly mounted on one side of the top of the support seat 1, a servo motor 36 fixedly mounted on the bottom of the mounting plate 37, an output end of the servo motor 36 is fixedly connected to a pin wheel 35 via a rotating shaft, a groove wheel 34 fixedly mounted on the bottom of the positioning shaft 31 is adapted to be provided on one side of the pin wheel 35, and a driving gear 328 fixedly mounted on the positioning shaft 31 is provided above the groove wheel 34;

[0035] The lower pressing member includes a vertical plate 38 fixedly mounted on the top of the rotating disk 32, a horizontal plate 39 fixedly connected to the top of the vertical plate 38, a sliding rod 310 slidably connected to the horizontal plate 39 in the vertical direction, a circular disk 311 fixedly connected to the bottom of the sliding rod 310, a pressing plate 313 rotatably connected to the bottom of the circular disk 311, and a complete gear ring 312 fixedly connected to the outer wall of the pressing plate 313;

[0036] A rectangular groove is formed on the surface of the sliding plate 318, and a positioning rod 315 is fixedly connected in the rectangular groove, a rectangular block is slidably connected to the positioning rod 315, one side of the rectangular block is fixedly connected to the disc 311, and the other side is fixedly connected to the trapezoidal plate 317, and a second damping spring 316 sleeved on the positioning rod 315 is provided on the top of the rectangular block;

[0037] The surface of the slide plate 318 is laterally slidably connected with the slide plate 318, and the outer end of the slide plate 318 is connected with an arc-shaped clamping block 319, and the two sides of the arc-shaped clamping block 319 are fixedly connected with guide rods 320, and the guide rods 320 are slidably installed on the slide plate 318, and a third damping spring 321 sleeved on the guide rod 320 is arranged between the arc-shaped clamping block 319 and the slide plate 318, and a groove is opened on the surface of the slide plate 318, and the bottom of the trapezoidal plate 317 is slidably installed in the groove, and a pulley 322 installed on the slide plate 318 is arranged on one side of the trapezoidal plate 317;

[0038] The knocking piece includes a connecting rod 323 rotatably mounted on the outer end of the support plate 4, the bottom of the connecting rod 323 is connected to the rotating shaft through a synchronous belt pulley transmission member 324, the top of the connecting rod 323 is fixedly connected with a rotating disk 325, the rotating disk 325 is rotatably connected to a connecting rod 326 at a position deviating from the center of the circle, and the other end of the connecting rod 326 is rotatably connected to a knocking rod 327, and the knocking rod 327 is slidably mounted on the support plate 4.

[0039] In the embodiment of the present invention, when both ends of the crankshaft are moved into the mounting groove 33 through the mounting assembly 2, and the crankshaft enters the mounting groove 33, the top of the crankshaft pushes the pressure plate 313, the complete gear ring 312, and the disc 311 to move upward. When the crankshaft completely enters the mounting groove 33, the disc 311, the complete gear ring 312, and the pressure plate 313 move downward again under the elastic force of the first damping spring 314, so that the pressure plate 313 clamps the crankshaft.

[0040] The servo motor 36 is turned on to drive the rotating shaft and the pinwheel 35 to rotate synchronously. When the pinwheel 35 rotates, the groove wheel 34 and the positioning shaft 31 are driven to rotate intermittently, so that the positioning shaft 31 drives the rotating disk 32 and the driving gear 328 to rotate synchronously, so that the rotating disk 32 cooperates with the mounting groove 33 to drive the crankshaft to rotate. When the rotating disk 32 drives the crankshaft to rotate, the complete gear ring 312 cooperates with the first part gear ring 210 and the second part gear ring 211 to drive the pressure plate 313 to rotate, so that the pressure plate 313 can drive the crankshaft to rotate synchronously when it rotates;

[0041] When the crankshaft moves to the position of the arc frame 28, the crankshaft moves upward under the action of the arc frame 28, so that the position of the crankshaft to be marked moves to the position corresponding to the position of the laser marking machine 5, and when the crankshaft moves upward, it can drive the pressure plate 313, the complete gear ring 312, the disc 311, and the slide bar 310 to move upward and compress the first damping spring 314. At the same time, when the disc 311 moves upward, it can drive the rectangular block and the trapezoidal plate 317 to move upward and compress the second damping spring 316. When the trapezoidal plate 317 moves upward, the arc clamping block 319, the sliding plate 318, and the guide rod 320 move toward the crankshaft under the elastic force of the third damping spring 321. At this time, the pulley 322 slides in contact with the side wall of the trapezoidal plate 317, thereby The arc-shaped clamping block 319 can clamp and position the crankshaft to be marked, so as to facilitate the subsequent laser marking machine 5 to mark the crankshaft; the intermittent rotation of the pin wheel 35, the groove wheel 34 and the positioning shaft 31, as well as the synchronous movement of the pressure plate 313, the complete gear ring 312 and other components, ensure the accurate positioning of the crankshaft before marking. This positioning method not only improves the accuracy of marking, but also avoids marking errors or repeated marking caused by position deviation; the arc-shaped clamping block 319 can fit closely to the surface of the crankshaft under the elastic force of the third damping spring 321 to achieve stable clamping. This clamping method not only ensures the stability of the crankshaft during the marking process, but also reduces the degradation of marking quality caused by vibration or shaking;

[0042] At the same time, when the shaft rotates, the synchronous belt pulley transmission part 324 can drive the connecting rod 323 to rotate synchronously, and the connecting rod 323 drives the rotating disk 325 to rotate, so that the rotating disk 325 cooperates with the connecting rod 326 when rotating, and can drive the knocking rod 327 to move back and forth, so that the knocking rod 327 can reciprocate and knock on the crankshaft during marking when reciprocating. During the laser marking process, tiny waste chips or molten metal particles will be generated on the surface of the crankshaft. These waste chips are easily stuck in the marking groove, affecting the marking effect and the flatness of the crankshaft surface. The reciprocating knocking of the knocking rod 327 can effectively vibrate the crankshaft, so that these waste chips fall off from the groove, keeping the marking area clean. The removal of waste chips not only helps to maintain the clarity of the marking area, but also ensures that the laser can accurately focus on the crankshaft surface, thereby improving the accuracy and precision of marking. In addition, the knocking action can also make the crankshaft surface smoother, further improving the marking quality.

[0043] Embodiment 2: Combination Figure 2 , Figure 3 As shown, on the basis of the first embodiment, the mounting assembly 2 includes a fixing seat 21 fixedly mounted on the top of the supporting seat 1, a lower connecting ring 22 and a connecting frame 23 are fixedly connected to the top of the fixing seat 21, a plurality of connecting frames 23 are provided, and are located at the outer end of the lower connecting ring 22, an upper connecting ring 24 is fixedly connected to the inner end of the connecting frame 23, the upper connecting ring 24 corresponds to the position of the lower connecting ring 22, and the rotating disk 32 is located inside the upper connecting ring 24 and the lower connecting ring 22;

[0044] The fixed seat 21, the lower connecting ring 22, and the upper connecting ring 24 are provided with a feed groove 25 on one side of the surface, and the feed groove 25 is used for the two ends of the crankshaft to enter the mounting groove 33. The lower connecting ring 22 and the upper connecting ring 24 are provided with a discharge groove 26 on the other side of the surface, and the discharge groove 26 is used for discharging the crankshaft after marking.

[0045] A guide rod 27 fixedly mounted on the lower connecting ring 22 is provided on one side of the discharge trough 26. The guide rod 27 is used to guide the crankshaft and discharge it to one side of the discharge trough 26. An arc frame 28 is fixedly connected to the inner wall of the lower connecting ring 22, and the position of the arc frame 28 corresponds to that of the laser marking machine 5.

[0046] An arc rod 29 is fixedly connected to the top of the upper connecting ring 24, and a first portion of the ring gear 210 and a second portion of the ring gear 211 are fixedly connected to the inner wall of the arc rod 29. The first portion of the ring gear 210 and the second portion of the ring gear 211 are located on both sides of the arc frame 28, and the first portion of the ring gear 210 and the second portion of the ring gear 211 are both meshed with the complete ring gear 312 for transmission. The arc rod 29, the upper connecting ring 24, the lower connecting ring 22 and the fixed seat 21 are rotatably connected to the rotating rod 212, the top of the rotating rod 212 is fixedly connected to the cleaning roller 213, and the bottom of the rotating rod 212 is fixedly connected to the driven gear 214 meshed with the driving gear 328.

[0047] In the embodiment of the present invention, the two ends of the crankshaft enter the mounting groove 33 of the rotating disk 32 through the feed groove 25, and when the positioning shaft 31, the rotating disk 32 and the driving gear 328 rotate intermittently, the crankshaft can be driven to rotate, and the two ends of the crankshaft are located inside the lower connecting ring 22 and the upper connecting ring 24 to rotate;

[0048] When the driving gear 328 rotates, it can drive the driven gear 214 to rotate, and the driven gear 214 drives the rotating rod 212 and the cleaning roller 213 to rotate synchronously, so that the cleaning roller 213 can clean the end of the crankshaft when rotating, and at the same time, the complete gear ring 312 rotates along the first part of the gear ring 210, so that the complete gear ring 312 cooperates with the pressure plate 313 to drive the crankshaft to rotate, so that the rotating crankshaft cooperates with the cleaning roller 213 to clean the outer wall of the crankshaft. While the crankshaft rotates, the cleaning roller 213 also rotates synchronously. This dual rotation mechanism can cover the outer wall of the crankshaft more comprehensively, thereby significantly improving the cleaning efficiency and effect. The surface of the crankshaft after cleaning is cleaner and free of impurities, which helps to obtain clearer and more accurate markings during the marking process;

[0049] When the crankshaft moves to the position of the arc frame 28, the crankshaft moves upward under the action of the arc frame 28, so that the position of the crankshaft to be marked moves to a position corresponding to the position of the laser marking machine 5;

[0050] After marking is completed, as the rotating assembly 3 drives the crankshaft to continue rotating, the complete gear ring 312 rotates along the second gear ring 211, so that the cleaning roller 213 cleans the marked crankshaft, and then under the action of the guide rod 27, the crankshaft is pushed to move to one side of the discharge trough 26 for discharge.

[0051] Example 3: Combination Figure 8 As shown, on the basis of the second embodiment, the cleaning assembly 6 includes a collecting box 61 fixedly mounted on one side of the supporting plate 4, a pump body 64 is connected to the bottom of the collecting box 61, a connecting pipe 62 is connected to the top of the collecting box 61, a dust suction pipe 63 is connected to the other end of the connecting pipe 62, and the position of the dust suction pipe 63 corresponds to the position of the laser marking machine 5.

[0052] In the embodiment of the present invention, when the laser marking machine 5 starts working, the pump body 64 is started at the same time, and the pump body 64 generates a strong suction force. Due to the suction force generated by the pump body 64, the air near the dust suction pipe 63 is quickly sucked in, and the dust and waste generated during the laser marking process are driven into the dust suction pipe 63. The dust and waste enter the connecting pipe 62 through the dust suction pipe 63, and continue to be transmitted to the collecting box 61 along the connecting pipe 62. In the collecting box 61, the dust and waste are effectively collected to avoid their pollution to the working environment and equipment.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crankshaft marking machine, comprising a support base (1), characterized in that: A mounting assembly (2) is arranged on the top of the support seat (1), a rotating assembly (3) for transferring the crankshaft is arranged on the mounting assembly (2), a supporting plate (4) is fixedly connected to the top of one side of the support seat (1), a laser marking machine (5) for marking the crankshaft is arranged on the top of the support plate (4), and a cleaning assembly (6) for collecting waste generated during the marking process is arranged on one side of the laser marking machine (5); The rotating assembly (3) comprises a positioning shaft (31) rotatably mounted on a support seat (1); the upper and lower ends of the positioning shaft (31) are fixedly connected to a rotating disk (32); a side wall of the rotating disk (32) is provided with a mounting groove (33) adapted to the crankshaft; a driving member is arranged at the bottom of the positioning shaft (31); a knocking member for knocking the crankshaft during marking is arranged on one side of the driving member; and a pressing member for pressing the crankshaft downward is arranged in a circular array at the top of the rotating disk (32).

2. A crankshaft marking machine according to claim 1, characterized in that: The driving member comprises a mounting plate (37) fixedly mounted on one side of the top of the support seat (1); a servo motor (36) is fixedly mounted on the bottom of the mounting plate (37); an output end of the servo motor (36) is fixedly connected to a pinwheel (35) via a rotating shaft; a groove wheel (34) fixedly mounted on the bottom of the positioning shaft (31) is adapted to be arranged on one side of the pinwheel (35); and a driving gear (328) fixedly mounted on the positioning shaft (31) is arranged above the groove wheel (34).

3. A crankshaft marking machine according to claim 2, characterized in that: The pressing member comprises a vertical plate (38) fixedly mounted on the top of the rotating disk (32); a horizontal plate (39) is fixedly connected to the top of the vertical plate (38); a sliding rod (310) is slidably connected to the horizontal plate (39) in the vertical direction; a circular disk (311) is fixedly connected to the bottom of the sliding rod (310); a pressing plate (313) is rotatably connected to the bottom of the circular disk (311); and a complete gear ring (312) is fixedly connected to the outer wall of the pressing plate (313).

4. A crankshaft marking machine according to claim 3, characterized in that: A rectangular groove is provided on the surface of the sliding plate (318), and a positioning rod (315) is fixedly connected in the rectangular groove. A rectangular block is slidably connected to the positioning rod (315), one side of the rectangular block is fixedly connected to the disc (311), and the other side is fixedly connected to a trapezoidal plate (317), and a second damping spring (316) sleeved on the positioning rod (315) is provided on the top of the rectangular block.

5. A crankshaft marking machine according to claim 4, characterized in that: The surface of the slide plate (318) is connected to the slide plate (318) in a transverse sliding manner, and the outer end of the slide plate (318) is connected to an arc-shaped clamping block (319), and the two sides of the arc-shaped clamping block (319) are fixedly connected to guide rods (320), and the guide rods (320) are slidably installed on the slide plate (318), and a third damping spring (321) sleeved on the guide rod (320) is arranged between the arc-shaped clamping block (319) and the slide plate (318), and a groove is opened on the surface of the slide plate (318), and the bottom of the trapezoidal plate (317) is slidably installed in the groove, and a pulley (322) installed on the slide plate (318) is arranged on one side of the trapezoidal plate (317).

6. A crankshaft marking machine according to claim 5, characterized in that: The knocking member comprises a connecting rod (323) rotatably mounted on the outer end of the support plate (4); the bottom of the connecting rod (323) is connected to the rotating shaft through a synchronous belt wheel transmission member (324); the top of the connecting rod (323) is fixedly connected with a rotating disk (325); the rotating disk (325) is rotatably connected to a connecting rod (326) at a position deviating from the center of the circle; the other end of the connecting rod (326) is rotatably connected to a knocking rod (327); and the knocking rod (327) is slidably mounted on the support plate (4).

7. A crankshaft marking machine according to claim 1, characterized in that: The mounting assembly (2) comprises a fixing seat (21) fixedly mounted on the top of the supporting seat (1); a lower connecting ring (22) and a connecting frame (23) are fixedly connected to the top of the fixing seat (21); a plurality of connecting frames (23) are provided and are located at the outer end of the lower connecting ring (22); an upper connecting ring (24) is fixedly connected to the inner end of the connecting frame (23); the upper connecting ring (24) corresponds to the position of the lower connecting ring (22); and a rotating disk (32) is located inside the upper connecting ring (24) and the lower connecting ring (22).

8. A crankshaft marking machine according to claim 7, characterized in that: A feed groove (25) is provided on one side of the surface of the fixing seat (21), the lower connecting ring (22) and the upper connecting ring (24), and a discharge groove (26) is provided on the other side of the surface of the lower connecting ring (22) and the upper connecting ring (24); A material guide rod (27) fixedly mounted on the lower connecting ring (22) is provided on one side of the material discharging trough (26); an arc frame (28) is fixedly connected to the inner wall of the lower connecting ring (22); and the positions of the arc frame (28) and the laser marking machine (5) correspond to each other.

9. A crankshaft marking machine according to claim 8, characterized in that: The top of the upper connecting ring (24) is fixedly connected to an arc-shaped rod (29); the inner wall of the arc-shaped rod (29) is fixedly connected to a first part gear ring (210) and a second part gear ring (211); the first part gear ring (210) and the second part gear ring (211) are located on both sides of the arc-shaped frame (28); the first part gear ring (210) and the second part gear ring (211) are both meshed with the complete gear ring (312) for transmission; the arc-shaped rod (29), the upper connecting ring (24), the lower connecting ring (22) and the fixed seat (21) are rotatably connected to a rotating rod (212); the top of the rotating rod (212) is fixedly connected to a cleaning roller (213); and the bottom of the rotating rod (212) is fixedly connected to a driven gear (214).

10. The crankshaft marking machine according to claim 1, characterized in that: The cleaning assembly (6) comprises a collection box (61) fixedly mounted on one side of the support plate (4); a pump body (64) is connected to the bottom of the collection box (61); a connecting pipe (62) is connected to the top of the collection box (61); a dust suction pipe (63) is connected to the other end of the connecting pipe (62); and the position of the dust suction pipe (63) corresponds to the position of the laser marking machine (5).

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