Surface marking device for mechanical part machining

Abstract

The invention discloses a surface marking device for mechanical part machining, and belongs to the technical field of laser machining. Comprising a supporting assembly, a laser marking machine and a rotating assembly, the rotating assembly comprises a first motor and a supporting frame, a plurality of fixing blocks are fixedly installed on the supporting frame, inclined planes are arranged on the fixing blocks, adjusting pipes are slidably connected to the fixing blocks, pressure sensors are fixedly installed on the adjusting pipes, and power rollers are installed on the pressure sensors; a magnetic suction module is mounted in the fixed block; a plurality of clamping assemblies are installed on the supporting frame, and a driving assembly and a material receiving assembly are installed on the supporting assembly. Through the arrangement of the rotatable supporting frame, simultaneous operation of the feeding station, the laser marking station and the discharging station is achieved, automatic laser marking operation is achieved, the marking efficiency is improved, the driving assembly can effectively and automatically clamp the annular part rotating to the laser marking station and drive the annular part to rotate, and the rotating stability of the annular part is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of laser processing, and more specifically to a surface marking device for processing mechanical parts. Background Art

[0002] Laser marking technology has been widely used in the manufacturing industry for its high precision, high efficiency, environmental protection and pollution-free characteristics. When the existing laser marking equipment marks the outer diameter surface of the annular workpiece, it is necessary to fix the workpiece on a rotatable driving device by manpower, and then drive the annular workpiece to rotate through the driving device and cooperate with the laser marking machine for marking. The installation, positioning and replacement process of the workpiece cannot be carried out synchronously, and the marking efficiency is low. In view of this, we propose a surface marking device for mechanical parts processing. Summary of the invention

[0003] The purpose of the present invention is to provide a surface marking device for machining mechanical parts, which solves the technical problems of poor continuity and low efficiency in the marking process of the outer diameter surface of an annular workpiece in the prior art.

[0004] The embodiment of the present invention provides a surface marking device for machining mechanical parts, comprising a support assembly, a laser marking machine for laser marking, and a rotating assembly, wherein the laser marking machine is mounted on the support assembly. The rotating assembly includes a first motor and a support frame, the support frame is rotatably connected to the support assembly, the first motor is used to drive the support frame to rotate on the support assembly, a plurality of fixed blocks are fixedly installed on the support frame, two groups of inclined surfaces symmetrical about the center plane of the fixed block are provided on the fixed block, a plurality of first driven rollers are rotatably installed on the inclined surfaces, an adjusting tube is slidably connected to the fixed block, a pressure sensor is fixedly installed on the adjusting tube, a power roller is installed on the pressure sensor, one end of the first elastic member is fixedly connected to the adjusting tube, and the other end of the first elastic member is fixedly connected to the fixed block; A magnetic attraction module is installed in the fixed block to control the adjustment tube to slide into the fixed block; The support frame is equipped with a plurality of clamping components, and the support components are equipped with driving components and material receiving components; The second driven roller and the first driven roller of the clamping assembly center and limit the workpiece, the support frame drives the workpiece to switch to the laser marking position, the driving assembly clamps the inner diameter surface of the workpiece and drives the workpiece to rotate, and the driving assembly simultaneously controls the material receiving assembly to move to the material receiving position to receive the material.

[0005] Preferably, the magnetic attraction module includes an electromagnet and an armature, the electromagnet is fixedly installed in the fixing block, and the armature is fixedly installed on the adjusting tube.

[0006] Preferably, the axis of the power roller is located on the center plane of the fixed block.

[0007] Preferably, the support assembly includes a workbench, on which a first conveyor line and a second conveyor line are fixedly installed, the first conveyor line is used to convey the workpiece to the support frame, and the second conveyor line is used to convey the marked workpiece out; The first motor is fixedly installed on the workbench, and the support frame is rotatably connected to the workbench.

[0008] Preferably, each workstation of the support frame corresponds to at least one group of clamping assemblies, and the clamping assemblies include a first cylinder, which is fixedly mounted on the support frame, and the output shaft of the first cylinder is fixedly connected to a support plate, which is slidably connected to the support frame, and two groups of clamping blocks are fixedly mounted on the support plate, with a set spacing between the two groups of clamping blocks, and the two groups of clamping blocks are symmetrical about the center plane of the fixed block, and a plurality of the second driven rollers are rotatably mounted on the side of the clamping block close to the fixed block.

[0009] Preferably, the driving assembly comprises an electric cylinder, a second motor, a support tube and an adjustment plate, the electric cylinder and the second motor are both fixedly mounted on the workbench, the support tube is rotatably connected to the adjustment plate, a telescopic shaft is slidably connected to the support tube, the telescopic shaft is composed of a plurality of shaft bodies slidably connected to each other, the free end of the telescopic shaft passes through the adjustment plate and is slidably connected to the support tube, the tail end of the telescopic shaft is rotatably connected to the workbench, the output shaft of the second motor is fixedly connected to the tail end of the telescopic shaft, and a plurality of push rods are slidably mounted on the support tube; The driving assembly also includes a plurality of connecting rods, one end of the connecting rod is rotatably connected to the top rod, and the other end is rotatably connected to the free end of the telescopic shaft. A second elastic member is sleeved on the top rod, one end of the second elastic member is fixedly connected to the top rod, and the other end is fixedly connected to the support tube. A third elastic member is sleeved on the free end of the telescopic shaft, one end of the third elastic member is fixedly connected to the telescopic shaft, and the other end is fixedly connected to the support tube. An adjusting block is fixedly installed on the free end of the telescopic shaft, a pushing block is fixedly installed on the output shaft of the electric cylinder, the adjusting block is rotatably connected with the pushing block, and the adjusting plate is slidably connected with the workbench through a plurality of telescopic rods.

[0010] Preferably, the axis of the telescopic shaft is colinear with the axis of the support tube, the push rod moves along the radial direction of the support tube, and the maximum telescopic amount of the telescopic rod is smaller than the maximum telescopic amount of the telescopic shaft.

[0011] Preferably, the material receiving assembly includes a rack and a screw rod, the rack is slidably connected to the workbench, the screw rod is rotatably connected to the workbench, the rack is fixedly connected to the push block, the screw rod is fixedly connected to a gear, the gear and the rack are meshed for transmission, the screw rod is threaded with a sliding frame, and the sliding frame is rotatably connected to the workbench; The material receiving assembly also includes a material receiving plate and two groups of support blocks. The material receiving plate is located at the third workstation of the support frame. One end of the material receiving plate is rotatably connected to the sliding frame, and the other end is fixedly installed with a support rod. The two groups of support blocks are respectively on both sides of the material receiving plate and fixed on the second conveyor line. A limiting groove is provided on the support block, and the support rod moves in the limiting groove.

[0012] Preferably, the limiting groove comprises a transverse groove and an oblique groove, and the transverse groove and the oblique groove are interconnected and smoothly transitioned.

[0013] Preferably, it also includes a partition assembly, which includes a second cylinder, the second cylinder is fixedly installed on the first conveyor line, the output shaft of the second cylinder is fixedly connected to a partition, and a tilting block is fixedly installed on one side of the partition close to the support frame.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention can realize the simultaneous operation of the loading station, laser marking station and unloading station through the setting of a rotatable support frame, thereby improving the marking efficiency of the surface of parts and realizing automated laser marking operation. The driving component can effectively automatically clamp the annular parts rotated to the laser marking station and drive them to rotate, ensuring the stability of the rotation of the annular parts and getting rid of the problem of low efficiency of traditional manual positioning or switching of workpieces.

[0015] 2. The present invention uses the first driven roller, the second driven roller and the power roller to effectively position the annular part with a fracture or mark while limiting and clamping the annular part at the first station, thereby ensuring that when the annular part rotates to the second station, the fracture, mark and marking are accurately positioned, with strong flexibility.

[0016] 3. The driving assembly of the present invention is also used to control the movement of the material receiving assembly. When the driving assembly is in the return state, in order to avoid interference between the support frame and the material receiving assembly when the support frame rotates, the driving assembly simultaneously controls the material receiving plate of the material receiving assembly to move away from the support frame during the return stroke, thereby ensuring that the support frame switches workstations normally. When the driving assembly clamps the next workpiece again, it will drive the material receiving plate of the material receiving assembly to move again to just below the laser-marked annular part of the third workstation, thereby receiving the annular part of the third workstation.

[0017] 4. When the receiving plate of the present invention is away from the receiving station, the support rod moves from the transverse groove to the inclined groove, so that the receiving plate switches from a horizontal state to an inclined state and the inclined end gradually approaches the conveyor belt of the second conveyor line, thereby effectively shortening the distance between the receiving plate and the conveyor belt of the second conveyor line, and the marked annular parts on the receiving plate slide down to the second conveyor line under the action of gravity, and when the receiving plate moves toward the receiving station, the support rod moves from the inclined groove to the transverse groove, and the receiving plate gradually switches from an inclined state to a horizontal state, thereby increasing the overall height of the receiving plate, making it closer to the bottom of the annular parts at the receiving station, ensuring that the annular parts fall smoothly on the receiving plate while reducing the collision of the annular parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 2 A partial structural schematic diagram of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 3 A schematic diagram of the position of a material receiving component of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 4 A schematic diagram of the structure of a rotating assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 5 A schematic diagram of the installation structure of a clamping assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 6 A schematic diagram of the installation position of a magnetic suction module of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 7 A schematic diagram of the connection structure of a driving assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Figure 8 A schematic diagram of a driving structure of a push rod of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Fig. 9 A schematic diagram of the connection structure of a material receiving assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Fig.10 A schematic diagram of the structure of a limiting groove of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention; Fig.11 A surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0019] Explanation of the numbers in the figure: 1. Support assembly; 2. Laser marking machine; 3. Rotating assembly; 4. Clamping assembly; 5. Driving assembly; 6. Material receiving assembly; 7. Separation assembly; 8. Transition plate; 11. Workbench; 12. Safety cover; 13. First conveyor line; 14. Second conveyor line; 21. Electric lifting column; 22. Laser; 23. Optical path system; 31. First motor; 32. Support frame; 33. Support shaft; 34. Guide groove; 35. Fixed block; 36. Inclined surface; 37. First driven roller; 38. Adjusting tube; 39. Pressure sensor; 41. First cylinder; 42. Support plate; 43. Clamping block; 44. Second driven roller; 5 1. Electric cylinder; 52. Second motor; 53. Support tube; 54. Adjustment plate; 55. Telescopic shaft; 56. Push rod; 57. Connecting rod; 58. Second elastic member; 59. Third elastic member; 61. Rack; 62. Screw rod; 63. First guide rail; 64. Gear; 65. Sliding frame; 66. Second guide rail; 67. Receiving plate; 68. Support block; 69. Transverse groove; 71. Second cylinder; 72. Partition; 73. Tilt block; 310. Power roller; 311. First elastic member; 312. Electromagnet; 313. Armature; 510. Adjustment block; 511. Push block; 512. Telescopic rod; 610. Bevel groove; 611. Support rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0021] Reference Figure 1 and Figure 2 This embodiment discloses a surface marking device for machining mechanical parts, including a support assembly 1 and a laser marking machine 2. The support assembly 1 includes a workbench 11, on which a safety cover 12 for production safety is fixedly installed. A first conveyor line 13 and a second conveyor line 14 are fixedly installed on the workbench 11. The first conveyor line 13 and the second conveyor line 14 both pass through the safety cover 12. The first conveyor line 13 is used to feed the parts into the marking device, and the second conveyor line 14 is used to transport the marked parts out. The laser marking machine 2 includes an electric lifting column 21, a laser 22 and an optical path system 23. The laser 22 is fixedly installed at the output end of the electric lifting column 21. The laser 22 generates a high-intensity laser beam, which is adjusted and focused by the optical path system 23. The focused laser beam is adjusted in direction by a galvanometer system and moves along a set trajectory on the surface of the part to achieve a marking operation.

[0022] Reference Figures 2 to 6 The marking device also includes a rotating assembly 3, which includes a first motor 31 and a support frame 32. The first motor 31 is fixedly mounted on the workbench 11, and the support frame 32 is cross-shaped. The support frame 32 is rotatably connected to the workbench 11 through a support shaft 33. The output shaft of the first motor 31 is fixedly connected to the support shaft 33. A plurality of guide grooves 34 are provided on the support frame 32. A plurality of fixed blocks 35 distributed in a circular array around the axis of the support shaft 33 are fixedly mounted on the support frame 32. In this embodiment, four groups of fixed blocks 35 are arranged, and two groups of inclined surfaces 36 symmetrically distributed about the center plane of the fixed block 35 are arranged on the fixed block 35. A plurality of first driven rollers 37 are rotatably mounted on the inclined surface 36. An adjusting tube 38 is slidably connected to the fixed block 35, and a fixed adjusting tube 38 is fixed on the adjusting tube 38. A pressure sensor 39 is fixedly installed, and a power roller 310 is installed on the pressure sensor 39. The axis of the power roller 310 is located on the center plane of the fixed block 35. The power roller 310 is composed of a roller frame and a roller body. The roller frame is fixedly installed on the pressure sensor 39. The marking device also includes a plurality of first elastic members 311. One end of the first elastic member 311 is fixedly connected to the adjusting tube 38, and the other end is fixedly connected to the fixed block 35. The first elastic member 311 is used to push the adjusting tube 38 and the power roller 310 out of the fixed block 35. An electromagnet 312 is fixedly installed in the fixed block 35, and an armature 313 is fixedly installed on the adjusting tube 38. After the electromagnet 312 is energized, the armature 313 drives the adjusting tube 38 and the power roller 310 to move toward the inside of the fixed block 35 under the action of magnetic attraction.

[0023] A plurality of clamping assemblies 4 are installed on the support frame 32. In this embodiment, four groups of clamping assemblies 4 are arranged, and each station of the support frame 32 corresponds to one group. The clamping assembly 4 includes a first cylinder 41, and the first cylinder 41 is fixedly installed on the support frame 32. The output shaft of the first cylinder 41 is fixedly connected with a support plate 42. The support plate 42 is slidably matched with the guide groove 34. Two groups of clamping blocks 43 are fixedly installed on the support plate 42. There is a set spacing between the two groups of clamping blocks 43. The two groups of clamping blocks 43 are symmetrical about the center plane of the fixed block 35. A plurality of second driven rollers 44 are rotatably installed on the side of the clamping block 43 close to the fixed block 35.

[0024] The output shaft of the first motor 31 drives the support frame 32 to rotate, thereby switching the conveying station. For the convenience of description, the position of the support frame 32 at the output end of the first conveying line 13 is recorded as the first station, and then Figure 4In the counterclockwise direction, the other stations of the support frame 32 are recorded as the second station, the third station and the fourth station in sequence. After the first conveyor line 13 conveys the annular part to the first station, the clamping block 43 pushes the annular part and acts simultaneously with the fixed block 35 to clamp the annular part to ensure stability during station switching. The power roller 310 moves toward the inside of the fixed block 35 under the action of the annular part, the pressure value of the pressure sensor 39 increases, and the regulating tube 38 compresses the first elastic member 311. Through the two sets of inclined surfaces 36 and the clamping block 43 with a certain spacing, the annular part can be automatically centered during the clamping process, reducing the difficulty of centering; and when the annular part has a fracture, the power roller 310 rotates, and the first driven roller 3 7 and the second driven roller 44 follow the transmission, so that the annular part rotates. When the power roller 310 rotates to the fracture of the annular part, the power roller 310 and the adjusting tube 38 are inserted into the fracture of the annular part under the action of the first elastic member 311, and the pressure value of the pressure sensor 39 is reduced to zero, and the power roller 310 stops rotating. Therefore, through the coordinated action of the power roller 310, the first driven roller 37 and the second driven roller 44, the fractured annular part can be positioned, and then the marking position can be positioned during subsequent marking, thereby improving the accuracy of marking positioning. Moreover, the fractured annular part does not require specific positioning and placement at the beginning, and automatic positioning adjustment can be achieved, effectively reducing the operational difficulty of positioning the fractured annular part.

[0025] Reference Figure 7 and Figure 8The marking device also includes a driving assembly 5, which includes an electric cylinder 51, a second motor 52, a support tube 53 and an adjustment plate 54. The electric cylinder 51 and the second motor 52 are both fixedly mounted on the workbench 11. The support tube 53 is rotatably connected to the adjustment plate 54. A telescopic shaft 55 is slidably connected to the support tube 53. The telescopic shaft 55 consists of a number of shaft bodies slidably connected to each other. The free end of the telescopic shaft 55 passes through the adjustment plate 54 and is slidably connected to the support tube 53. The tail end of the telescopic shaft 55 is rotatably connected to the workbench 11. The output shaft of the second motor 52 is fixedly connected to the tail end of the telescopic shaft 55. The axis of the telescopic shaft 55 is colinear with the axis of the support tube 53. A number of push rods 56 are slid on the support tube 53. The push rods 56 move radially along the support tube 53. The driving assembly 5 also includes a number of connecting rods 57. One end of the connecting rod 57 is rotatably connected to the push rod 56. The other end of the connecting rod 57 is rotatably connected to the push rod 56. One end is rotatably connected to the free end of the telescopic shaft 55, and a second elastic member 58 is mounted on the push rod 56. One end of the second elastic member 58 is fixedly connected to the push rod 56, and the other end is fixedly connected to the support tube 53. The second elastic member 58 is used to keep the push rod 56 sliding into the support tube 53. The free end of the telescopic shaft 55 is mounted with a third elastic member 59. One end of the third elastic member 59 is fixedly connected to the telescopic shaft 55, and the other end is fixedly connected to the support tube 53. An adjusting block 510 is fixedly installed on the free end of the telescopic shaft 55, and a push block 511 is fixedly installed on the output shaft of the electric cylinder 51. The adjusting block 510 is rotatably connected to the push block 511. The adjusting plate 54 is slidably connected to the workbench 11 through a plurality of telescopic rods 512. The telescopic rods 512 are composed of a plurality of rod bodies slidably connected to each other. The maximum telescopic amount of the telescopic rod 512 is less than the maximum telescopic amount of the telescopic shaft 55. The output shaft of the electric cylinder 51 pushes the adjustment block 510 to move through the push block 511, and under the pulling of the third elastic member 59, the support tube 53 and the push rod 56 are driven to move synchronously, and the telescopic shaft 55 and the telescopic rod 512 are extended. When the telescopic rod 512 reaches the maximum extension, the support tube 53 stops moving. At this time, the push rod 56 has moved to the set position inside the annular part, and the telescopic shaft 55 continues to extend, and the third elastic member 59 continues to stretch. The connecting rod 57 pushes the push rod 56 out and compresses the second elastic member 58. The push rod 56 is tightened from the inside of the annular part, thereby switching the annular part from clamping on the support frame 32 to tightening by the push rod 56. The output shaft of the second motor 52 drives the telescopic shaft 55, the support tube 53 and the push rod 56 to rotate, thereby driving the annular part to rotate synchronously.

[0026] Reference Fig. 9 and Fig.10The marking device also includes a material receiving assembly 6, which includes a rack 61 and a screw rod 62. The rack 61 is slidably connected to the workbench 11 through a first guide rail 63, and the screw rod 62 is rotatably connected to the workbench 11. The rack 61 is fixedly connected to the push block 511, and a gear 64 is fixedly connected to the screw rod 62. The gear 64 is meshed with the rack 61 for transmission. A sliding frame 65 is threadedly matched on the screw rod 62, and the sliding frame 65 is rotatably connected to the workbench 11 through a second guide rail 66. The material receiving assembly 6 also includes a material receiving plate 67 and two groups of support blocks 68. The material receiving plate 67 is located at the third station of the support frame 32. One end of the material receiving plate 67 is rotatably connected to the sliding frame 65, and the other end is fixedly installed with a support rod 611. The two groups of support blocks 68 are respectively on both sides of the material receiving plate 67 and fixed on the second conveyor line 14. The support blocks 68 can also be fixedly installed on the workbench 11, and a limiting groove is provided on the support block 68. The limiting groove includes a transverse groove 69 and an inclined groove 610. The transverse groove 69 and the inclined groove 610 are interconnected and smoothly transitioned. The support rod 611 moves in the limiting groove. When the support rod 611 moves into the transverse groove 69, the material receiving plate 67 is parallel to the horizontal plane, and the material receiving plate 67 gradually approaches the third station of the support frame 32. At this time, it is in a material receiving state, which can effectively reduce the distance between the material receiving plate 67 and the annular parts after marking, and realize smooth material receiving. When the support rod 611 moves from the transverse groove 69 to the inclined groove 610, the material receiving plate 67 moves toward the second conveyor line 14. Due to the inclination of the inclined groove 610, the material receiving plate 67 is inclined and the inclined end gradually approaches the conveyor belt. The annular parts slide down to the second conveyor line 14 under the action of gravity and are conveyed out.

[0027] Reference Figure 2 and Fig.11 , a partition assembly 7 is installed on the first conveyor line 13, and the partition assembly 7 includes a second cylinder 71, and the second cylinder 71 is fixedly installed on the first conveyor line 13. The output shaft of the second cylinder 71 is fixedly connected to a partition 72, and a tilting block 73 is fixedly installed on the side of the partition 72 close to the support frame 32. After the first conveyor line 13 conveys the annular parts to the set position, the output shaft of the second cylinder 71 pushes the partition 72 to move, separating the front and rear annular parts, and the tilting block 73 pushes the previous annular part to continue to move on the support frame 32. The moving distance is the thickness of the tilting block 73, so that the center of the annular part is close to the center plane of the fixed block 35, and the second cylinder 71 drives the partition 72 to move back to the rotation area where the tilting block 73 is separated from the support frame 32. At this time, the partition 72 still blocks the subsequent annular parts. It should be noted that the conveying positioning of the annular parts can be positioned by a positioning sensor or a visual camera, which will not be repeated here.

[0028] In order to ensure that the annular parts on the first conveyor line 13 can be smoothly moved to the first station of the support frame 32, a transition plate 8 is provided at the output end of the first conveyor line 13, thereby ensuring the smooth movement of the annular parts.

[0029] The present invention is not only applicable to complete or broken annular parts, but also can accurately locate annular parts with marks. This can be achieved by locating the marked parts in cooperation with the recognition camera when the power roller 310 controls the rotation of the annular parts.

[0030] Working principle: After the annular parts on the first conveyor line 13 are conveyed to the set position, the output shaft of the second cylinder 71 pushes the partition 72 to move, separating the front and rear annular parts. At the same time, the tilting block 73 pushes the previous annular part to continue moving to the first workstation area on the support frame 32. The second cylinder 71 drives the partition 72 to move back to the rotation area where the tilting block 73 is separated from the support frame 32.

[0031] The output shaft of the first cylinder 41 drives the clamping block 43 to push the annular part toward the fixed block 35. The power roller 310 moves toward the inside of the fixed block 35 under the action of the annular part, the pressure value of the pressure sensor 39 increases, the adjusting tube 38 compresses the first elastic member 311, and the second driven roller 44 and the first driven roller 37 clamp the workpiece; when the annular part is an open ring, the power roller 310 rotates, and the first driven roller 37 and the second driven roller 44 follow the transmission, so that the annular part rotates. When the power roller 310 rotates to the fracture of the annular part, the power roller 310 and the adjusting tube 38 are inserted into the fracture of the annular part under the action of the first elastic member 311, the pressure value of the pressure sensor 39 decreases to zero, and the power roller 310 stops rotating.

[0032] The output shaft of the first motor 31 drives the support frame 32 to rotate 90 degrees, and the positions of the previous station and the next station are interchanged. When the annular part rotates to the second station, the axis of the annular part is collinear with the extended axis of the support tube 53, and the annular part on the second station is directly below the field mirror of the laser marking machine 2.

[0033] The output shaft of the electric cylinder 51 pushes the adjusting block 510 to move through the pushing block 511, and the telescopic shaft 55 is extended. Under the pulling of the third elastic member 59, the telescopic rod 512, the support tube 53 and the push rod 56 are driven to move synchronously. When the telescopic rod 512 reaches the maximum extension, the length limit of the manual telescopic rod 512 of the support tube 53 stops moving. At this time, the push rod 56 has moved to the set position inside the annular part. The electric cylinder 51 drives the telescopic shaft 55 to continue to extend through the telescopic transmission, and the third elastic member 59 continues to stretch. The connecting rod 57 pushes the push rod 56 out of the support tube 53 and compresses the second elastic member 58. The push rod 56 presses against the inner diameter surface of the annular part. The electromagnet 312 in the second station is energized, and the armature 313 drives the adjusting tube 38 and the power roller 310 to slide into the fixed block 35 and disengage from the fracture of the annular part. The laser marking machine 2 performs laser marking on the outer diameter surface of the annular part, and the output shaft of the second motor 52 drives the telescopic shaft 55, the support tube 53 and the push rod 56 to rotate, thereby driving the annular part to rotate synchronously, and realizing the switching of different marking positions on the outer diameter surface of the annular part. It should be noted that the second driven roller 44 can also be out of the clamping state during the process of the annular part driven by the second motor 52 to rotate, and re-clamp after the marking is completed, thereby improving the fault tolerance of the marking.

[0034] After the marking is completed, the output shaft of the electric cylinder 51 returns, the push rod 56 is reset, and the support tube 53 is away from the rotation area of ​​the support frame 32. At this time, the second driven roller 44 and the first driven roller 37 are still in the clamping state of the annular part. The output shaft of the first motor 31 drives the support frame 32 to rotate 90 degrees again, and the position of the previous station and the next station is exchanged again.

[0035] After marking, the annular part rotates to the third station, and the first station and the second station repeat the above-mentioned annular part conveying process. When the output shaft of the electric cylinder 51 extends again and controls the support tube 53 to be inserted into the workpiece of the second station and the push rod 56 presses the inner diameter surface of the annular part, the rack 61 moves synchronously with the output shaft of the electric cylinder 51, and drives the screw rod 62 to rotate through meshing transmission with the gear 64. The screw rod 62 drives the sliding frame 65 and the receiving plate 67 to move toward the third station, and the support rod 611 moves from the inclined groove 610 to the transverse groove 69. The receiving plate 67 switches from the inclined state to the horizontal state and moves to the bottom of the annular part of the third station. The output shaft of the first cylinder 41 returns, and the second driven roller 44 stops clamping the annular part of the third station, and the annular part of the third station falls on the receiving plate 67.

[0036] After the laser marking of the annular workpiece at the second station is completed, the output shaft of the electric cylinder 51 will return again, and the receiving plate 67 will follow the movement. The receiving plate 67 moves in the direction away from the third station, and the support rod 611 moves from the transverse groove 69 to the inclined groove 610. The receiving plate 67 is affected by the inclined groove 610, and the inclined end gradually approaches the conveyor belt. The annular parts slide down to the second conveyor line 14 under the action of gravity and are transported out, thereby realizing the process of synchronous unloading. Several stations of the present invention perform corresponding operations at the same time, effectively improving the operating efficiency of laser marking on the outer diameter surface of the annular parts.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surface marking device for machining mechanical parts, characterized in that: The invention comprises a support component (1), a laser marking machine (2) for laser marking, and a rotating component (3), wherein the laser marking machine (2) is mounted on the support component (1). The rotating assembly (3) comprises a first motor (31) and a support frame (32), the support frame (32) being rotatably connected to the support assembly (1), the first motor (31) being used to drive the support frame (32) to rotate on the support assembly (1), a plurality of fixed blocks (35) being fixedly mounted on the support frame (32), the fixed block (35) being provided with two groups of inclined surfaces (36) symmetrical about the center plane of the fixed block (35), a plurality of first driven rollers (37) being rotatably mounted on the inclined surfaces (36), an adjusting tube (38) being slidably connected to the fixed block (35), a pressure sensor (39) being fixedly mounted on the adjusting tube (38), a power roller (310) being mounted on the pressure sensor (39), one end of the first elastic member (311) being fixedly connected to the adjusting tube (38), and the other end of the first elastic member (311) being fixedly connected to the fixed block (35); A magnetic attraction module is installed in the fixed block (35) and is used to control the adjustment tube (38) to slide into the fixed block (35); The support frame (32) is installed with a plurality of clamping components (4), and the support component (1) is installed with a driving component (5) and a material receiving component (6); The second driven roller (44) and the first driven roller (37) of the clamping assembly (4) center and limit the workpiece, the support frame (32) drives the workpiece to switch to the laser marking position, the driving assembly (5) clamps the inner diameter surface of the workpiece and drives the workpiece to rotate, and the driving assembly (5) simultaneously controls the material receiving assembly (6) to move to the material receiving position to receive the material.

2. A surface marking device for machining mechanical parts according to claim 1, characterized in that: The magnetic attraction module comprises an electromagnet (312) and an armature (313); the electromagnet (312) is fixedly mounted in a fixed block (35), and the armature (313) is fixedly mounted on an adjustment tube (38).

3. The surface marking device for machining mechanical parts according to claim 1, characterized in that: The axis of the power roller (310) is located on the center plane of the fixed block (35).

4. The surface marking device for machining mechanical parts according to claim 1, characterized in that: The support assembly (1) comprises a workbench (11), on which a first conveyor line (13) and a second conveyor line (14) are fixedly mounted, the first conveyor line (13) being used to convey the workpiece onto the support frame (32), and the second conveyor line (14) being used to convey the marked workpiece out; The first motor (31) is fixedly mounted on the workbench (11), and the support frame (32) is rotatably connected to the workbench (11).

5. The surface marking device for machining mechanical parts according to claim 1, characterized in that: Each station of the support frame (32) corresponds to at least one group of clamping assemblies (4), and the clamping assembly (4) comprises a first cylinder (41), the first cylinder (41) is fixedly mounted on the support frame (32), the output shaft of the first cylinder (41) is fixedly connected to a support plate (42), the support plate (42) is slidably connected to the support frame (32), two groups of clamping blocks (43) are fixedly mounted on the support plate (42), a set spacing is provided between the two groups of clamping blocks (43), the two groups of clamping blocks (43) are symmetrical about the center plane of the fixed block (35), and a plurality of the second driven rollers (44) are rotatably mounted on a side of the clamping block (43) close to the fixed block (35).

6. The surface marking device for machining mechanical parts according to claim 4, characterized in that: The driving assembly (5) comprises an electric cylinder (51), a second motor (52), a support tube (53) and an adjustment plate (54); the electric cylinder (51) and the second motor (52) are both fixedly mounted on a workbench (11); the support tube (53) is rotatably connected to the adjustment plate (54); a telescopic shaft (55) is slidably connected to the support tube (53); the telescopic shaft (55) is composed of a plurality of shaft bodies slidably connected to each other; a free end of the telescopic shaft (55) passes through the adjustment plate (54) and is slidably connected to the support tube (53); a rear end of the telescopic shaft (55) is rotatably connected to the workbench (11); an output shaft of the second motor (52) is fixedly connected to the rear end of the telescopic shaft (55); and a plurality of push rods (56) are slidably connected to the support tube (53); The driving assembly (5) further comprises a plurality of connecting rods (57), one end of the connecting rod (57) being rotatably connected to the push rod (56), and the other end being rotatably connected to the free end of the telescopic shaft (55); a second elastic member (58) is sleeved on the push rod (56), one end of the second elastic member (58) is fixedly connected to the push rod (56), and the other end is fixedly connected to the support tube (53); a third elastic member (59) is sleeved on the free end of the telescopic shaft (55), one end of the third elastic member (59) is fixedly connected to the telescopic shaft (55), and the other end is fixedly connected to the support tube (53); An adjusting block (510) is fixedly mounted on the free end of the telescopic shaft (55), a pushing block (511) is fixedly mounted on the output shaft of the electric cylinder (51), the adjusting block (510) is rotatably connected to the pushing block (511), and the adjusting plate (54) is slidably connected to the workbench (11) via a plurality of telescopic rods (512).

7. A surface marking device for machining mechanical parts according to claim 6, characterized in that: The axis of the telescopic shaft (55) is colinear with the axis of the support tube (53); the push rod (56) moves radially along the support tube (53); and the maximum telescopic amount of the telescopic rod (512) is less than the maximum telescopic amount of the telescopic shaft (55).

8. The surface marking device for machining mechanical parts according to claim 6, characterized in that: The material receiving assembly (6) comprises a rack (61) and a screw rod (62), the rack (61) is slidably connected to the workbench (11), the screw rod (62) is rotatably connected to the workbench (11), the rack (61) is fixedly connected to the push block (511), a gear (64) is fixedly connected to the screw rod (62), the gear (64) and the rack (61) are meshed for transmission, a sliding frame (65) is threadedly matched on the screw rod (62), and the sliding frame (65) is rotatably connected to the workbench (11); The material receiving assembly (6) further comprises a material receiving plate (67) and two groups of support blocks (68). The material receiving plate (67) is located at the third station of the support frame (32). One end of the material receiving plate (67) is rotatably connected to the sliding frame (65), and the other end is fixedly mounted with a support rod (611). The two groups of support blocks (68) are respectively located on both sides of the material receiving plate (67) and fixed on the second conveyor line (14). A limiting groove is provided on the support block (68), and the support rod (611) moves in the limiting groove.

9. A surface marking device for machining mechanical parts according to claim 8, characterized in that: The limiting groove comprises a transverse groove (69) and an oblique groove (610), and the transverse groove (69) and the oblique groove (610) are interconnected and smoothly transitioned.

10. A surface marking device for machining mechanical parts according to any one of claims 4, 6 to 9, characterized in that: The device also comprises a partition assembly (7), wherein the partition assembly (7) comprises a second cylinder (71), the second cylinder (71) being fixedly mounted on the first conveyor line (13), the output shaft of the second cylinder (71) being fixedly connected to a partition plate (72), and a tilting block (73) being fixedly mounted on one side of the partition plate (72) close to the support frame (32).

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