A surface marking device for machining mechanical parts

Abstract

The present invention discloses a surface marking device for machining mechanical parts, belonging to the technical field of laser processing. It includes a support assembly, a laser marking machine and a rotating assembly. The rotating assembly includes a first motor and a support frame. A number of fixing blocks are fixedly installed on the support frame. An inclined surface is provided on the fixing block. An adjusting tube is slidably connected to the fixing block. A pressure sensor is fixedly installed on the adjusting tube. A driving roller is installed on the pressure sensor. A magnetic attraction module is installed in the fixing block. A number of clamping assemblies are installed on the support frame, and a driving assembly and a material receiving assembly are installed on the support assembly. Through the setting of the rotatable support frame, the present invention realizes simultaneous operation of the loading station, the laser marking station and the unloading station, realizes automatic laser marking operation, improves the marking efficiency, and the driving assembly can effectively automatically clamp and drive the circular parts rotated to the laser marking station, ensuring the stability of the rotation of the circular parts.

Description

Technical Field

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

[0002] Laser marking technology has been widely used in the manufacturing industry due to its characteristics of high precision, high efficiency, environmental protection and no pollution. When the existing laser marking equipment marks the outer diameter surface of a ring-shaped workpiece, it is necessary to manually fix the workpiece on a rotatable driving device, and then drive the ring-shaped workpiece to rotate by the driving device and cooperate with the laser marking machine for marking. The installation and positioning and replacement processes 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 machining mechanical parts. 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 coherence and low efficiency in the marking process of the outer diameter surface of the ring-shaped workpiece in the prior art.

[0004] An embodiment of the present invention provides a surface marking device for machining mechanical parts, including a support assembly, a laser marking machine for laser marking, and a rotating assembly. The laser marking machine is installed on the support assembly.

[0005] 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 fixing blocks are fixedly installed on the support frame. Two groups of inclined surfaces symmetrical about the central plane of the fixing block are provided on the fixing block. A plurality of first driven rollers are rotatably installed on the inclined surfaces. An adjusting tube is slidably connected to the fixing block. A pressure sensor is fixedly installed on the adjusting tube. A driving roller is installed on the pressure sensor. One end of a first elastic member is fixedly connected to the adjusting tube, and the other end of the first elastic member is fixedly connected to the fixing block.

[0006] A magnetic attraction module is installed in the fixing block for controlling the sliding of the adjusting tube into the fixing block.

[0007] A plurality of clamping assemblies are installed on the support frame, and a driving assembly and a material receiving assembly are installed on the support assembly.

[0008] 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. The driving assembly simultaneously controls the material receiving assembly to move to the material receiving position to receive the material.

[0009] 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.

[0010] Preferably, the axis of the power roller is on the central plane of the fixed block.

[0011] 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.

[0012] The first motor is fixedly installed on the workbench, and the support frame is rotatably connected to the workbench.

[0013] Preferably, each station of the support frame corresponds to at least one set of clamping assemblies. The clamping assembly includes a first cylinder, which is fixedly installed on the support frame. The output shaft of the first cylinder is fixedly connected to a support plate, which is slidably connected to the support frame. Two sets of clamping blocks are fixedly installed on the support plate, with a set distance between the two sets of clamping blocks. The two sets of clamping blocks are symmetric about the central plane of the fixed block. A number of the second driven rollers are rotatably installed on the side of the clamping block close to the fixed block.

[0014] Preferably, the driving assembly includes an electric cylinder, a second motor, a support tube and an adjusting plate. The electric cylinder and the second motor are both fixedly installed on the workbench. The support tube is rotatably connected to the adjusting plate. A telescopic shaft is slidably connected to the support tube. The telescopic shaft is composed of a number of axially sliding connected shafts. The free end of the telescopic shaft penetrates the adjusting 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. A number of ejector rods are slidably installed on the support tube.

[0015] The driving assembly further includes a number of connecting rods. One end of the connecting rod is rotatably connected to the ejector rod, and the other end is rotatably connected to the free end of the telescopic shaft. A second elastic member is sleeved on the ejector rod. One end of the second elastic member is fixedly connected to the ejector 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.

[0016] An adjusting block is fixedly installed on the free end of the telescopic shaft. The output shaft of the electric cylinder is fixedly installed with a push block. The adjusting block is rotatably connected to the push block. The adjusting plate is slidably connected to the workbench through a number of telescopic rods.

[0017] Preferably, the axis of the telescopic shaft is collinear with the axis of the support tube. The ejector rod moves along the radial direction of the support tube. The maximum telescopic amount of the telescopic rod is less than the maximum telescopic amount of the telescopic shaft.

[0018] Preferably, the material receiving assembly includes a rack and a lead screw. The rack is slidably connected to the workbench. The lead screw is rotatably connected to the workbench. The rack is fixedly connected to the push block. A gear is fixedly connected to the lead screw. The gear meshes with the rack for transmission. A sliding frame is in threaded cooperation with the lead screw. The sliding frame is slidably connected to the workbench.

[0019] The material receiving assembly further includes a material receiving plate and two sets of support blocks. The material receiving plate is located at the third station 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 sets of support blocks are respectively on both sides of the material receiving plate and are fixed on the second conveyor line. A limiting groove is formed on the support block, and the support rod moves in the limiting groove.

[0020] Preferably, the limiting groove includes a horizontal groove and an inclined groove, and the horizontal groove and the inclined groove are interconnected and smoothly transition.

[0021] Preferably, it further includes a separating assembly. The separating assembly 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 with a partition plate. An inclined block is fixedly installed on one side of the partition plate close to the support frame.

[0022] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0023] 1. By setting the rotatable support frame, the present invention can realize simultaneous operation of the feeding station, the laser marking station and the discharging station, thereby improving the marking efficiency of the surface of the parts and realizing automatic laser marking operation. The driving assembly can effectively automatically clamp and drive the rotation of the annular part rotated to the laser marking station, ensuring the stability of the rotation of the annular part and getting rid of the problems of low efficiency of traditional manual positioning or workpiece switching.

[0024] 2. By cooperating the first driven roller and the second driven roller with the power roller, the present invention can effectively position the annular part with a break or a mark while limiting and clamping the annular part at the first station, so as to ensure that when the annular part rotates to the second station, the break and the mark are accurately positioned with the marking position, and the flexibility is strong.

[0025] 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 stroke state, in order to avoid interference between the support frame and the material receiving assembly during the rotation of the support frame, the driving assembly controls the material receiving plate of the material receiving assembly to move away from the support frame during the return stroke, so as to ensure the normal switching of the stations of the support frame. 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 the position directly below the laser-marked annular part at the third station, so as to receive the annular part at the third station.

[0026] 4. When the material receiving plate of the present invention is away from the material receiving station, the support rod moves from the horizontal groove to the inclined groove, so that the material receiving plate is switched from the horizontal state to the inclined state and the inclined end gradually approaches the conveyor belt of the second conveyor line, thus effectively shortening the distance between the material receiving plate and the conveyor belt of the second conveyor line. The marked annular parts on the material receiving plate slide down to the second conveyor line under the action of gravity. When the material receiving plate moves towards the material receiving station, the support rod moves from the inclined groove to the horizontal groove, and the material receiving plate is gradually switched from the inclined state to the horizontal state, thereby increasing the overall height of the material receiving plate, making it closer to the bottom of the annular parts at the material receiving station, ensuring that the annular parts fall smoothly on the material receiving plate and reducing the collision of the annular parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. 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;

[0028] Figure 2 FIG. is a schematic diagram of a partial structure of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0029] Figure 3 FIG. is a schematic diagram of the position of the material receiving assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0030] Figure 4 FIG. is a schematic diagram of the structure of the rotating assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0031] Figure 5 FIG. is a schematic diagram of the installation structure of the clamping assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0032] Figure 6 FIG. is a schematic diagram of the installation position of the magnetic attraction module of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0033] Figure 7 FIG. is a schematic diagram of the connection structure of the driving assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0034] Figure 8 FIG. is a schematic diagram of the transmission structure of the ejector rod of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0035] Figure 9 FIG. is a schematic diagram of the connection structure of the material receiving assembly of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0036] Figure 10Schematic diagram of the limiting groove structure of a surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention;

[0037] Figure 11 A surface marking device for machining mechanical parts disclosed in a preferred embodiment of the present invention Figure 2 Enlarged schematic diagram of part A in

[0038] Description of reference numerals in the figure: 1. Support assembly; 2. Laser marking machine; 3. Rotating assembly; 4. Clamping assembly; 5. Driving assembly; 6. Material receiving assembly; 7. Partitioning 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 pipe; 39. Pressure sensor; 41. First cylinder; 42. Support plate; 43. Clamping block; 44. Second driven roller; 51. Electric cylinder; 52. Second motor; 53. Support pipe; 54. Adjusting plate; 55. Telescopic shaft; 56. Jacking rod; 57. Connecting rod; 58. Second elastic member; 59. Third elastic member; 61. Rack; 62. Lead screw; 63. First guide rail; 64. Gear; 65. Sliding frame; 66. Second guide rail; 67. Material receiving plate; 68. Support block; 69. Horizontal groove; 71. Second cylinder; 72. Partition board; 73. Inclined block; 310. Power roller; 311. First elastic member; 312. Electromagnet; 313. Armature; 510. Adjusting block; 511. Pushing block; 512. Telescopic rod; 610. Inclined groove; 611. Support rod. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] Refer to 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, and both the first conveyor line 13 and the second conveyor line 14 pass through the safety cover 12. The first conveyor line 13 is used to send parts into the marking device, and the second conveyor line 14 is used to convey 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, and the laser beam is adjusted and focused through the optical path system 23. The focused laser beam adjusts its direction through a galvanometer system and moves along a set trajectory on the surface of the part to achieve the marking operation.

[0041] Referring to Figures 2 to 6 , the marking device further includes a rotating assembly 3. The rotating assembly 3 includes a first motor 31 and a support frame 32. The first motor 31 is fixedly installed on the workbench 11. The support frame 32 is in a cross shape and 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 number of guide grooves 34 are formed on the support frame 32, and a number of fixing blocks 35 are fixedly installed on the support frame 32 and are circularly arrayed around the axis of the support shaft 33. In this embodiment, four groups of fixing blocks 35 are provided. Two inclined surfaces 36 that are symmetrically distributed with respect to the central plane of the fixing block 35 are provided on the fixing block 35. A number of first driven rollers 37 are rotatably installed on the inclined surfaces 36. An adjusting pipe 38 is slidably connected to the fixing block 35. A pressure sensor 39 is fixedly installed on the adjusting pipe 38, and a driving roller 310 is installed on the pressure sensor 39. The axis of the driving roller 310 is on the central plane of the fixing block 35. The driving 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 further includes a number of first elastic members 311. One end of the first elastic member 311 is fixedly connected to the adjusting pipe 38, and the other end is fixedly connected to the fixing block 35. The first elastic member 311 is used to push the adjusting pipe 38 and the driving roller 310 out of the fixing block 35. An electromagnet 312 is fixedly installed inside the fixing block 35, and an armature 313 is fixedly installed on the adjusting pipe 38. After the electromagnet 312 is energized, the armature 313 drives the adjusting pipe 38 and the driving roller 310 to move into the fixing block 35 under the action of magnetic attraction.

[0042] A number of clamping assemblies 4 are installed on the support frame 32. In this embodiment, four groups of clamping assemblies 4 are provided, with each station of the support frame 32 corresponding to one group. The clamping assembly 4 includes a first cylinder 41, which is fixedly installed 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 engaged with the guide groove 34. Two groups of clamping blocks 43 are fixedly installed on the support plate 42. There is a set distance between the two groups of clamping blocks 43. The two groups of clamping blocks 43 are symmetric about the central plane of the fixed block 35. A number of second driven rollers 44 are rotatably installed on the side of the clamping block 43 close to the fixed block 35.

[0043] The output shaft of the first motor 31 drives the support frame 32 to rotate, thereby switching the conveying stations. For the convenience of description, the position of the support frame 32 at the output end of the first conveyor line 13 is denoted as the first station. Then, in the counterclockwise direction as shown in Figure 4 , the other stations of the support frame 32 are successively denoted as the second station, the third station, and the fourth station. After the first conveyor line 13 conveys the annular part to the first station, the clamping block 43 pushes against the annular part and acts together with the fixed block 35 to clamp the annular part, ensuring stability during the station switching. The power roller 310 moves inward into the fixed block 35 under the action of the annular part, and the pressure value of the pressure sensor 39 increases. The regulating pipe 38 compresses the first elastic member 311. Through the arrangement of the two inclined surfaces 36 and the clamping blocks 43 with a certain distance, during the clamping process, the annular part can achieve automatic centering, reducing the centering difficulty. When the annular part has a break, 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 break of the annular part, under the action of the first elastic member 311, the power roller 310 and the regulating pipe 38 are inserted into the break of the annular part, and the pressure value of the pressure sensor 39 decreases 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 positioning of the annular part with a break can be realized, and then the positioning of the marking position during subsequent marking can be realized, improving the accuracy of marking positioning. Moreover, the annular part with a break does not need to be placed in a specific position initially and can realize automatic positioning adjustment, effectively reducing the operation difficulty of positioning the annular part with a break.

[0044] Refer to Figure 7 and Figure 8, the marking device further includes a driving assembly 5. The driving assembly 5 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 installed 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 is composed of a number of axles that are 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 collinear with the axis of the support tube 53. A number of ejector rods 56 are slidably arranged on the support tube 53. The ejector rods 56 move along the radial direction of the support tube 53. The driving assembly 5 further includes a number of connecting rods 57. One end of the connecting rod 57 is rotatably connected to the ejector rod 56, and the other end is rotatably connected to the free end of the telescopic shaft 55. A second elastic member 58 is sleeved on the ejector rod 56. One end of the second elastic member 58 is fixedly connected to the ejector rod 56, and the other end is fixedly connected to the support tube 53. The second elastic member 58 is used to keep the ejector rod 56 sliding into 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 adjustment block 510 is fixedly installed on the free end of the telescopic shaft 55. The output shaft of the electric cylinder 51 is fixedly installed with a push block 511. The adjustment block 510 is rotatably connected to the push block 511. The adjustment plate 54 is slidably connected to the workbench 11 through a number of telescopic rods 512. The telescopic rods 512 are composed of a number of slidably connected rod bodies. The maximum telescopic amount of the telescopic rods 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. Under the pulling of the third elastic member 59, the support tube 53 and the ejector rod 56 are driven to move synchronously, and the telescopic shaft 55 and the telescopic rods 512 extend. When the telescopic rods 512 reach the maximum extension amount, the support tube 53 stops moving. At this time, the ejector rod 56 has moved to the set position inside the annular part. The telescopic shaft 55 continues to extend, and the third elastic member 59 continues to stretch. The connecting rod 57 pushes the ejector rod 56 to eject and compress the second elastic member 58. The ejector rod 56 tightens from the inside of the annular part, so as to realize the switching of the clamping of the annular part from the support frame 32 to the tightening of the ejector rod 56. The output shaft of the second motor 52 drives the telescopic shaft 55, the support tube 53 and the ejector rod 56 to rotate, so as to realize the synchronous rotation of the annular part.

[0045] Refer to Figure 9 and Figure 10, the marking device further includes a material receiving component 6. The material receiving component 6 includes a rack 61 and a lead screw 62. The rack 61 is slidably connected to the workbench 11 through a first guide rail 63. The lead screw 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 lead screw 62. The gear 64 is in meshing transmission with the rack 61. A sliding frame 65 is in threaded cooperation with the lead screw 62. The sliding frame 65 is slidably connected to the workbench 11 through a second guide rail 66. The material receiving component 6 further 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 are fixed on the second conveyor line 14. The support blocks 68 can also be fixedly installed on the workbench 11. A limiting groove is formed on the support block 68. The limiting groove includes a horizontal groove 69 and an inclined groove 610. The horizontal groove 69 and the inclined groove 610 are interconnected and smoothly transition. The support rod 611 moves in the limiting groove. When the support rod 611 moves into the horizontal groove 69, the material receiving plate 67 is parallel to the horizontal plane. The material receiving plate 67 gradually approaches the third station of the support frame 32. At this time, it is in the material receiving state, which can effectively reduce the distance between the material receiving plate 67 and the marked annular part, realizing stable material receiving. When the support rod 611 moves from the horizontal groove 69 to the inclined groove 610, the material receiving plate 67 faces 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 part slides down onto the second conveyor line 14 under the action of gravity and is conveyed out.

[0046] Referring to Figure 2 and Figure 11 , a separating component 7 is installed on the first conveyor line 13. The separating component 7 includes a second air cylinder 71. The second air cylinder 71 is fixedly installed on the first conveyor line 13. The output shaft of the second air cylinder 71 is fixedly connected with a partition plate 72. An inclined block 73 is fixedly installed on one side of the partition plate 72 close to the support frame 32. After the first conveyor line 13 conveys the annular part to the set position, the output shaft of the second air cylinder 71 pushes the partition plate 72 to move, separating the front and rear two annular parts. The inclined block 73 pushes the previous annular part to continue moving on the support frame 32, and the moving distance is the thickness of the inclined block 73, so that the center of the annular part approaches the central plane of the fixed block 35. The second air cylinder 71 drives the partition plate 72 to move backward until the inclined block 73 disengages from the rotation area of the support frame 32. At this time, the partition plate 72 still blocks the subsequent annular parts. It should be noted that the conveying and positioning of the annular part can be carried out through a positioning sensor or a vision camera, which will not be elaborated here.

[0047] To ensure that the annular parts on the first conveyor line 13 can move smoothly 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, so as to ensure the smooth movement of the annular parts.

[0048] The present invention is not only applicable to complete or fractured ring-shaped parts, but also can accurately position ring-shaped parts with marks. When the power roller 310 controls the rotation of the ring-shaped part, it can be achieved by cooperating with the recognition camera to position the marked part.

[0049] Working principle: After the ring-shaped part on the first conveyor line 13 is conveyed to the set position, the output shaft of the second cylinder 71 pushes the partition plate 72 to move, separating the front and rear two ring-shaped parts. At the same time, the inclined block 73 pushes the previous ring-shaped part to continue moving on the support frame 32 to the first station area, and the second cylinder 71 drives the partition plate 72 to move backward until the inclined block 73 disengages from the rotation area of the support frame 32.

[0050] The output shaft of the first cylinder 41 drives the clamping block 43 to push the ring-shaped part towards the fixed block 35. Under the action of the ring-shaped part, the power roller 310 moves towards the inside of the fixed block 35, the pressure value of the pressure sensor 39 increases, and the regulating pipe 38 compresses the first elastic member 311. The second driven roller 44 and the first driven roller 37 clamp the workpiece; when the ring-shaped part is an open ring, the power roller 310 rotates, and the first driven roller 37 and the second driven roller 44 follow the drive, so that the ring-shaped part rotates. When the power roller 310 rotates to the fracture of the ring-shaped part, under the action of the first elastic member 311, the power roller 310 and the regulating pipe 38 are inserted into the fracture of the ring-shaped part, and the pressure value of the pressure sensor 39 decreases to zero, and the power roller 310 stops rotating.

[0051] 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 ring-shaped part rotates to the second station, the axis of the ring-shaped part is collinear with the extension line of the axis of the support pipe 53. The ring-shaped part at the second station is directly below the field lens of the laser marking machine 2.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] After the laser marking of the ring workpiece at the second station is completed, the output shaft of the electric cylinder 51 will return again, and the material receiving plate 67 will move accordingly. The material receiving plate 67 moves away from the third station. The support rod 611 moves from the horizontal groove 69 into the inclined groove 610. Under the action of the inclined groove 610, the inclined end of the material receiving plate 67 gradually approaches the conveyor belt. The ring part slides onto the second conveyor line 14 under the action of gravity and is conveyed out, thus realizing the process of synchronous unloading. Several stations of the present invention perform corresponding operations simultaneously, effectively improving the operation efficiency of laser marking on the outer diameter surface of the ring part.

[0056] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within 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) are used to 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; 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); 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).

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: 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).

5. The surface marking device for machining mechanical parts according to claim 1, 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).

6. The surface marking device for machining mechanical parts according to claim 1, 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 slidably 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.

7. A surface marking device for machining mechanical parts according to claim 6, 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.

8. A surface marking device for machining mechanical parts according to any one of claims 1 to 7, 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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