Marking equipment for parts

Abstract

The marking equipment comprises a working table, a laser marking machine and a master control system are installed on the working face of the working table, the working table is provided with a through hole allowing the part to ascend and pass through, and a linear air cylinder located between the laser marking machine and the through hole is further installed on the working face of the working table; before marking is conducted, conveyed parts are subjected to pre-detection treatment, influence parameters such as particles, oil stains and smoothness on the surfaces of the parts which influence marking integrity are detected through corresponding detection equipment, and the parts which do not meet the marking standard are pushed to fall into corresponding classification bins at designated positions; and subsequent different cleaning treatments are prepared.

Description

Technical Field

[0001] The invention belongs to the field of industrial processing equipment, and in particular, relates to a marking device for parts. Background Art

[0002] For the formed parts of industrial vehicles, they need to be marked. By setting appropriate parameters such as laser power, marking speed, focal position, etc., the corresponding parts of the parts can be marked.

[0003] The Chinese patent with the authorization announcement number CN118492606A discloses an automated production line for polishing and laser coding of automobile parts, which includes a main frame, on which a mechanical arm, a polishing head and a driving member for driving the polishing head to rotate are arranged, a first conveying member for conveying automobile parts is arranged at the inlet end of the main frame, a two-dimensional code laser marking machine is arranged at one side of the main frame near the outlet end of the main frame, and a second conveying member for conveying automobile parts is arranged between the two-dimensional code laser marking machine and the outlet end of the main frame. The present invention has the effect of improving the applicability of the automated production line for polishing and laser coding of automobile parts.

[0004] The above technical solution has the following defects:

[0005] There are many factors that affect the marking completeness rate of marking equipment. Apart from the equipment factors, the cleanliness of the surface of the parts themselves is also one of the important influencing factors. Whether it is manual cleaning and inspection or equipment polishing, there will inevitably be some stains on the surface when it is transported to the marking equipment. Different detection equipment is required to detect these stains. For parts that cannot reach the marking cleanliness, they should be classified and recycled to increase the marking yield rate;

[0006] Therefore, the existing marking equipment cannot perform the functions of detecting and sorting recycled parts, and cannot achieve more efficient marking operations. Summary of the invention

[0007] In view of the above defects, the present invention provides a component marking device, comprising a workbench, a laser marking machine and a master control system are installed on the working surface of the workbench, and the workbench is provided with a through hole for the components to rise and pass through, and a linear cylinder is also installed on the working surface of the workbench between the laser marking machine and the through hole;

[0008] A transport line for conveying parts is installed at the bottom of the workbench. The transport line includes several mobile platforms with transmission connections. A group of electric push rods are installed on the top of the mobile platform. Each group of electric push rods are connected by a rotating shaft. A classification push platform is hinged on the top of the rotating shaft. A group of finger cylinders are installed on the top of the classification push platform. A clamping mechanism for fixing parts is installed at the output end of each group of finger cylinders. A single-axis cylinder that runs through the middle of the mobile platform and is compatible with the clamping mechanism is also installed at the bottom of the mobile platform.

[0009] Both sides of the conveyor line are provided with a detection mechanism for detecting whether the parts meet the standards and a classification box for classifying and recycling unqualified parts.

[0010] Furthermore, the interior of the classification box is divided into chamber A, chamber B and chamber C by an inner partition, and the detection mechanism includes a weight detection trigger switch, a fluorescence detection device and a laser scattering detection device, and the three are distributed in this order from the input direction to the output direction of the transportation line.

[0011] Furthermore, the side of the classification push platform away from the classification box is sleeved on the outside of the rotating shaft through a reserved hole, and the side of the classification push platform close to the classification box is hinged to the limiting ear plate installed on the top of the mobile platform through two pins;

[0012] The centers of the classification push platform and the mobile platform are respectively provided with push openings I and II, which are concentric up and down, and the weight detection equipment is installed on the inner circle of push opening I;

[0013] The weight detection trigger switch is used to control the weight detection equipment within its detection range to work. The number of weight detection equipment is the same as the number of mobile platforms, and the inner ring installed on the push port I is used to contact and weigh the parts. The weight detection trigger switch corresponds to the A chamber one by one;

[0014] The fluorescence detection equipment corresponds to chamber B one by one;

[0015] The laser scattering detection equipment corresponds one to one with chamber C.

[0016] Furthermore, the clamping mechanism includes two clamping blocks symmetrically fixed to the output ends of the finger cylinders of the same group. The two clamping blocks are spliced ​​into a square, and the inside of the square has a circle formed by arc grooves opened by the two clamping blocks. Rubber pads are fixed on the sides of the two clamping blocks close to each other.

[0017] Furthermore, the number of finger cylinders in each group is three, and the number of clamping blocks is also three.

[0018] Furthermore, the number of finger cylinders in each group is four, and the number of clamping blocks is also four.

[0019] Furthermore, the number of the through holes corresponds to the number of laser marking machines, and there are two of them. The through holes and the transportation line are on the same straight line, and the timing pause position of the transportation line makes the push port I and the through holes form concentric circles. The through holes are truncated cones that are wide at the bottom and narrow at the top, and the diameter of the top opening is not less than the size of the parts.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Before marking, the conveyed parts are pre-tested, and the particles, oil stains, smoothness and other parameters that affect the marking integrity of the parts are tested by corresponding testing equipment. Parts that do not meet the marking standards are pushed into the corresponding classification chamber at the designated position for subsequent cleaning treatment;

[0022] 2. It can play a good role in clamping, transporting, testing and marking round or square parts. No human intervention is required. Through the timing and classification control of the master control system, the assembly line operation of transportation, testing and marking can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereogram of the present invention.

[0024] Figure 2 It is a rear view of the present invention.

[0025] Figure 3 It is a top view of the workbench in the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the transport line and the clamping mechanism in the present invention.

[0027] Figure 5 It is a schematic diagram of the rear view direction of the classification box in the present invention.

[0028] Figure 6 It is a schematic diagram of the position of the weight detection equipment in the present invention.

[0029] Figure 7 This is a schematic diagram of the clamping mechanism in the splicing state in Example 2 of the present invention.

[0030] Figure 8 This is a schematic diagram of the clamping mechanism in the splicing state in Example 3 of the present invention.

[0031] In the figure: 1. workbench; 2. laser marking machine; 3. transportation line; 301. mobile platform; 302. electric push rod; 303. rotating shaft; 304. classification push table; 305. finger cylinder; 306. single-axis cylinder; 307. push port I; 308. push port II; 309. limit ear plate; 4. detection mechanism; 401. weight detection trigger switch; 402. fluorescence detection equipment; 403. laser scattering detection equipment; 404. weight detection equipment; 5. classification box; 6. clamping mechanism; 601. clamping block; 602. arc groove; 7. through hole; 8. linear cylinder. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the device of the present invention will be described more fully below with reference to the relevant drawings. Embodiments of the device are given in the drawings. However, the device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1-2 As shown, this embodiment provides a marking device for parts, including a workbench 1, a laser marking machine 2 and a master control system are installed on the working surface of the workbench 1, and the laser marking machine 2 has the same structure as a traditional marking machine, including a laser, a scanning system and a control system (the control system is integrated in the master control system);

[0036] like Figure 3As shown, the workbench 1 is provided with a through hole 7 for parts to rise and pass through, and the working surface of the workbench 1 is also installed with a linear cylinder 8 located between the laser marking machine 2 and the through hole 7. It should be noted that the number of through holes 7 corresponds to the number of laser marking machines 2 and linear cylinders 8, and there are two of them. The through hole 7 and the transportation line 3 are on the same straight line, and the transportation line 3 forms a concentric circle with the push port I307 and the through hole 7 through the timing pause position set by the master control system, so as to ensure that the subsequent single-axis cylinder 306 can push the top parts to move up, so that the laser marking machine 2 completes the marking work, and then the support pad fixed at the output end of the linear cylinder 8 pushes the marked parts away, so that they are accumulated on the surface of the workbench 1, which is convenient for the staff to recover. The through hole 7 is a truncated cone with a wide bottom and a narrow top, and the diameter of the top opening is not less than the size of the parts. The truncated cone design can converge its position during the upward movement to prevent deviations such as tilting during the movement.

[0037] A transport line 3 for transporting parts is installed at the bottom of the workbench 1. The transport line 3 includes a plurality of mobile platforms 301 connected by transmission. Specifically, like the traditional transport mechanism, a chain driven by a driving motor synchronously drives a plurality of mobile platforms 301 fixed on one side of the chain to perform a cyclic transport operation. It should be noted that since this embodiment does not involve the pre-marking work (i.e., molding, conveyor belt, etc.), Figure 2 The connection diagram between the transport line 3 and the preceding equipment is not shown. The parts that have completed the preceding work can be placed on the mobile platform 301 manually (automatic transfer operations can also be achieved through a multi-axis robotic arm, which will not be repeated here).

[0038] like Figure 4 As shown, a group of synchronously working electric push rods 302 are installed on the top of the mobile platform 301, and each group of electric push rods 302 are connected by a rotating shaft 303. A classification push platform 304 is hinged on the top of the rotating shaft 303. The side of the classification push platform 304 away from the classification box 5 is sleeved on the outside of the rotating shaft 303 through a reserved hole, and the side of the classification push platform 304 close to the classification box 5 is hinged to the limiting ear plate 309 installed on the top of the mobile platform 301 through two pins (it should be noted that the limiting ear plate 309 is clamped in the slide groove opened on the top of the mobile platform 301, and can move synchronously with the inclination of the classification push platform 304). Its function is that when the detection mechanism 4 detects that the marking standard is not met, the electric push rod 302 is synchronously raised to drive the hinged classification push platform 304 to rotate. At this time, the clamping mechanism 6 stops clamping, so that the parts fall into the corresponding chamber of the classification box 5;

[0039] A group of finger cylinders 305 are installed on the top of the classification push platform 304, and a clamping mechanism 6 for fixing parts is installed at the output end of each group of finger cylinders 305. A single-axis cylinder 306 is also installed at the bottom of the mobile platform 301 to penetrate the middle and adapt to the clamping mechanism 6. A support pad for contacting parts is fixed at the output end of the single-axis cylinder 306;

[0040] The clamping mechanism 6 includes two clamping blocks 601 symmetrically fixed to the output ends of the same group of finger cylinders 305, wherein the finger cylinders 305 need to have a self-locking function (i.e., the finger cylinders 305 automatically stop extending and stably clamp when encountering resistance), and the two clamping blocks 601 are spliced ​​into a square, and the inside of the square has a circle formed by arc grooves 602 opened by the two clamping blocks 601, and rubber pads are fixed on the sides of the two clamping blocks 601 close to each other, so as to achieve the function of adaptive clamping of square or round parts;

[0041] like Figure 5 As shown, a detection mechanism 4 for detecting whether the parts meet the standards and a classification box 5 for classifying and recycling unqualified parts are respectively provided on both sides of the conveyor line 3. The interior of the classification box 5 is divided into a bin A, a bin B and a bin C by an inner partition. The detection mechanism 4 includes a weight detection trigger switch 401, a fluorescence detection device 402 and a laser scattering detection device 403, and the three are distributed in this order from the input direction to the output direction of the conveyor line 3;

[0042] The center of the classification push platform 304 and the mobile platform 301 are respectively provided with a push opening I307 and a push opening II308, and the push opening I307 and the push opening II308 are concentric in the upper and lower parts. Figure 6 As shown, the weight detection device 404 is installed on the inner circle of the push port I307;

[0043] The weight detection trigger switch 401 is used to control the weight detection device 404 within its detection range to work. The number of the weight detection devices 404 is the same as the number of the mobile platform 301, and the inner ring installed on the push port I307 is used to contact with the parts and weigh them;

[0044] Among them, the fluorescence detection device 402 uses ultraviolet light (UV light) to illuminate the surface of the component, and the fluorescence reaction of oil and certain chemicals can be revealed under ultraviolet light, so as to perform post-detection identification. The laser scattering detection device 403 (i.e., laser detector) uses a low-power laser beam to illuminate the surface of the component. The clean surface will produce uniform scattered light, while the contaminated surface will cause abnormal scattered light. The two can be distinguished by the same visual sensor;

[0045] The weight detection device 404 includes a ring tray and a weight sensor installed on the inner ring of the push port 1307. Since the weights of standard parts are the same, when the weight sensor detects a different weight (or greater than a preset weight threshold), it is determined that there are foreign objects or debris on the surface;

[0046] It is also important to note that the inspection steps need to be carried out in the order of weight, fluorescence and laser to mark a more efficient inspection operation (because weight is the easiest to judge, while oil stains or concave particles on the surface require visual judgment);

[0047] The weight detection trigger switch 401 corresponds to the A chamber one by one;

[0048] The fluorescence detection device 402 corresponds to chamber B one by one;

[0049] The laser scattering detection equipment 403 corresponds to the C chamber one by one. Such a design facilitates the subsequent classification, recycling and cleaning work.

[0050] Example 2

[0051] like Figure 7 As shown, the difference from Example 1 is that the number of each group of finger cylinders 305 is three, and the number of clamping blocks 601 is also three. The clamping blocks 601 are respectively two trapezoids (a, b) and an equilateral triangle (c). The splicing ends are provided with concentric circle notches, which are combined into a square. The three finger cylinders 305 are respectively installed at the two diagonals and the midline of the square, that is, Figure 7 The box in .

[0052] Example 3

[0053] like Figure 8 As shown, the difference from Example 1 is that the number of finger cylinders 305 in each group is four, and the number of clamping blocks 601 is also four, all of which are square, and the splicing ends are provided with concentric circle notches (indicated by a', b', c', and d'), and the four finger cylinders 305 are respectively installed at the four diagonals of the square, that is, Figure 8 The box in .

[0054] The overall control system of the component marking device described in this embodiment controls the overall operation as follows:

[0055] When the transport line 3 is in normal operation, the parts are manually placed in the push port I307. At this time, after the weight detection device 404 detects the parts (meets the weight standard), it transmits a signal to the master control system to control the finger cylinder 305 to extend, and the clamp 601 clamps the parts. When it does not meet the weight standard, the signal is transmitted to the master control system to control the finger cylinder 305 not to operate, and then move to the weight detection trigger switch 401 (it should be noted that the weight detection trigger switch 401 and the weight detection device 404 can detect whether the detection trigger switch 401 of the integrated card reader is located through the NFC chip integrated in the weight detection device 404, or through other methods, which will not be repeated here). After the weight detection trigger switch 401 is triggered, the information is transmitted to the master control system, and the master control system controls the electric push rod 302 to extend, so that it pushes the hinged classification push table 304, and the parts on the top fall into the A warehouse, and then continue to be transported;

[0056] When it moves to the inspection area of ​​the fluorescent inspection device 402, if it meets the requirements of marking, it will continue to be transported. If it does not meet the requirements, it will be fed back to the master control system to control the electric push rod 302 to extend, so that it pushes the hinged classification push table 304, and the top parts fall into the B chamber, and then continue to be transported;

[0057] When it moves to the inspection area of ​​the laser scattering inspection device 403, if it meets the marking requirements, it will continue to be transported. If it does not meet the requirements, it will be fed back to the master control system to control the electric push rod 302 to extend, so that it pushes the hinged classification push table 304, and the top parts fall into the C warehouse, and then continue to be transported;

[0058] It is then transported to the bottom of the through hole 7. At this time, the master control system controls the finger cylinder 305 to reset, so that the component loses the clamping, and then controls the single-axis cylinder 306 to extend upward to push the component to the top of the through hole 7. Then the laser marking machine 2 performs marking. When the preset marking target time is reached, the master control system controls the linear cylinder 8 to push out, so that the marked components are pushed away from the top of the through hole 7 and piled up on the workbench 1 to wait for collection. After the linear cylinder 8 and the single-axis cylinder 306 are reset, the transport line 3 continues the subsequent transmission operation.

[0059] It should be noted that a timed pause is set every time the transport line 3 passes through the weight detection trigger switch 401, the fluorescence detection equipment 402, the laser scattering detection equipment 403, and the bottom of the laser marking machine 2. The pause duration can be determined according to the operating duration of the laser marking machine 2.

[0060] It should be noted that the structure described in the present invention can be implemented in a variety of different forms and is not limited to the described embodiments. Any equivalent transformations made by ordinary technicians in this field using the contents of the present invention description and drawings, or directly or indirectly applied to other related technical fields, such as the loading and unloading of other items, are included in the protection scope of the present invention.

Claims

1. A marking device for parts, comprising a workbench, characterized in that: The working surface of the workbench is equipped with a laser marking machine and a master control system, and the workbench is provided with a through hole for parts to rise and pass through, and the working surface of the workbench is also equipped with a linear cylinder located between the laser marking machine and the through hole; A transport line for conveying parts is installed at the bottom of the workbench. The transport line includes several mobile platforms with transmission connections. A group of electric push rods are installed on the top of the mobile platform. Each group of electric push rods are connected by a rotating shaft. A classification push platform is hinged on the top of the rotating shaft. A group of finger cylinders are installed on the top of the classification push platform. A clamping mechanism for fixing parts is installed at the output end of each group of finger cylinders. A single-axis cylinder that runs through the middle of the mobile platform and is compatible with the clamping mechanism is also installed at the bottom of the mobile platform. Both sides of the conveyor line are provided with a detection mechanism for detecting whether the parts meet the standards and a classification box for classifying and recycling unqualified parts.

2. A component marking device as claimed in claim 1, characterized in that: The interior of the classification box is divided into chamber A, chamber B and chamber C by an inner partition. The detection mechanism includes a weight detection trigger switch, a fluorescence detection device and a laser scattering detection device, and the three are distributed in this order from the input direction to the output direction of the transportation line.

3. A component marking device as claimed in claim 2, characterized in that: The side of the classification push platform away from the classification box is sleeved on the outside of the rotating shaft through a reserved hole, and the side of the classification push platform close to the classification box is hinged to the limiting ear plate installed on the top of the mobile platform through two pins; A push port I and a push port II are respectively opened at the center of the classification push platform and the mobile platform. The push port I and the push port II are concentric, and the weight detection equipment is installed on the inner circle of the push port I. The push port I can be extended by the output end of the single-axis cylinder to pass through; The weight detection trigger switch is used to control the weight detection equipment within its detection range to work. The number of weight detection equipment is the same as the number of mobile platforms, and the inner ring installed on the push port I is used to contact and weigh the parts. The weight detection trigger switch corresponds to the A chamber one by one; The fluorescence detection equipment corresponds to chamber B one by one; The laser scattering detection equipment corresponds one to one with chamber C.

4. A component marking device as claimed in claim 3, characterized in that: The clamping mechanism includes two clamping blocks symmetrically fixed to the output ends of the finger cylinders of the same group. The two clamping blocks are spliced ​​into a square, and the inside of the square is a circle formed by arc grooves opened by the two clamping blocks. Rubber pads are fixed on the sides of the two clamping blocks close to each other.

5. A component marking device as claimed in claim 4, characterized in that: The number of finger cylinders in each group is three, and the number of clamping blocks is also three.

6. A component marking device as claimed in claim 4, characterized in that: The number of finger cylinders in each group is four, and the number of clamping blocks is also four.

7. A component marking device as claimed in claim 3, characterized in that: The number of the through holes corresponds to the number of laser marking machines, and there are two of them. The through holes and the transportation line are on the same straight line, and the timing pause position of the transportation line makes the push port I and the through holes form concentric circles. The through holes are truncated cones that are wide at the bottom and narrow at the top, and the diameter of the top opening is not less than the size of the parts.

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