Ring piece marking system

Abstract

The utility model provides a ring piece marking system, which is characterized in that a slideway is used for conveying workpieces, and a marking station is arranged on the slideway; the marking machine is fixed to the side portion of a marking station through a mechanical arm, the stopping frame is assembled in a sliding mode in the conveying direction of the sliding way through a first stepping motor, and the stopping frame drives a stopping piece to stretch out and draw back above the marking station in the longitudinal direction through a telescopic rod so as to stop a workpiece. The multiple supporting plates are driven by the jacking piece to penetrate through the sliding way in the longitudinal direction so as to lift and position the marking station. The distance measuring instrument is arranged at the marking station and is provided with a first distance measuring end longitudinally pointing to the upper end face of the workpiece and a second distance measuring end transversely pointing to the side wall of the workpiece along the slideway; the stop piece is arranged to stop and position the workpiece, so that the position of the workpiece is determined in the conveying direction of the sliding way, the workpiece is jacked up through the supporting plate, the workpiece is kept stable, the distance measuring instrument is used for positioning in the longitudinal direction and the transverse direction of the sliding way, the position of the workpiece is accurately determined, accurate positioning is provided for a mechanical arm, and the marking precision is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece marking, and in particular relates to a ring marking system. Background Art

[0002] During the processing of workpieces, it is usually necessary to mark them. Currently, the commonly used marking devices are generally set next to the conveyor track, and the workpieces to be marked are marked by the marking machine. The positioning accuracy of conventional conveying equipment for workpieces is poor, which easily leads to insufficient marking accuracy.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art, and the utility model provides a workpiece marking method.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ring marking system, comprising:

[0007] A slideway, the slideway is used for conveying workpieces, and a marking station is provided on the slideway;

[0008] A marking machine, which is fixed to the side of the marking station by a mechanical arm to mark the workpiece;

[0009] A stop frame, wherein the stop frame is slidably assembled along the conveying direction of the slideway by a first stepper motor, and the stop frame drives a stopper to be extended and retracted longitudinally above the marking station by a telescopic rod to stop the workpiece;

[0010] A plurality of pallets are driven by a lifting member to pass through the slideway in the longitudinal direction to lift and position the marking station;

[0011] A distance meter, the distance meter is arranged at the marking station and has a first distance measuring end pointing to the upper end surface of the workpiece in the longitudinal direction and a second distance measuring end pointing to the side wall of the workpiece in the transverse direction of the slideway;

[0012] A controller, wherein the marking machine, the mechanical arm, the distance meter, the lifting member, the first stepping motor and the telescopic rod are connected to the controller accordingly.

[0013] Preferably, a frame corresponding to the marking station is arranged above the slide, and the frame is provided with two slide rails extending along both sides of the slide, and both ends of the stop frame are slidably assembled on the slide rails, and the slide rails are provided with studs for threadedly assembling the stop frame, and the studs are driven by the first stepper motor.

[0014] Preferably, a gantry corresponding to the marking station is provided above the slideway, a first distance measuring end of a distance meter is provided above the gantry, and a second distance measuring end of the distance meter is provided on the side of the gantry.

[0015] Preferably, the first measuring end is slidably mounted above the portal frame and extended along the width direction of the slideway through a second stepper motor. A positioning rod is provided on the side of the first measuring end, and the positioning rod extends downward to the upper surface of the slideway. A touch switch corresponding to the workpiece is provided on the positioning rod.

[0016] Preferably, the second stepping motor and the touch switch are connected to the controller accordingly.

[0017] Preferably, the slideway includes a plurality of drive rollers distributed at intervals, and the plurality of support plates are correspondingly connected to a bracket, the bracket is located below the slideway and directly opposite the marking station, and a lifting member is provided at the bottom of the bracket.

[0018] Beneficial effects: A stopper is set to stop and position the workpiece, so that the position of the workpiece in the direction of slide transmission has been determined, the workpiece is lifted up by a pallet to keep it stable, and the rangefinder is used to position it in the longitudinal direction and the transverse direction of the slide, so as to accurately confirm the position of the workpiece, provide accurate positioning for the robot arm, and ensure marking accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0020] Figure 1 This is a simplified structural diagram of the marking system in the specific embodiment provided by the utility model;

[0021] Figure 2 A cross-sectional diagram of a marking system in a specific embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the assembly of the rubber strip in the specific embodiment provided by the utility model.

[0023] In the figure: 1. control cabinet; 2. mechanical arm; 3. marking machine; 4. slide; 5. driving roller; 6. support plate; 7. door frame; 8. lifting piece; 9. frame; 10. first distance measuring end; 11. second distance measuring end; 12. positioning rod; 13. telescopic rod; 14. stopper; 15. bracket; 16. convex strip; 17. reset spring; 18. partition; 19. rubber strip. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0025] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0027] like Figure 1-3 As shown, a ring marking system includes a slide 4, a marking machine 3, a stop frame, a support plate 6, a distance meter and a controller. The slide 4 is used for workpiece transmission. The slide 4 is placed on the ground through a base. The slide 4 includes a plurality of drive rollers 5 distributed at intervals. The plurality of drive rollers 5 are located on the same horizontal plane. The drive rollers 5 are rotatably connected to the slide 4 base and are synchronously driven through a sprocket. A marking station is provided on the slide, and a marking device is arranged at the marking station to perform workpiece marking operations. The marking machine 3 is fixed to the side of the marking station through the robot arm 2 to mark the workpiece. The marking machine 3 and the robot arm 2 are both existing products, and their specific structures and principles are not restricted too much here. The stop frame is slidably assembled along the transmission direction of the slide 4 through the first stepper motor, so that the position can be adjusted as needed. The stop frame drives the stop member 14 to be extended and retracted longitudinally above the marking station through the telescopic rod 13 to stop the workpiece. The stop member 14 is strip-shaped, and its length is adapted to the width of the slide 4. The stop member 14 is provided with a flat stop surface on the side corresponding to the direction of the workpiece. The position of the stop member 14 is adjusted by the stepper motor, and the stop member 14 is moved below and then stops the workpiece through the stop surface, thereby accurately positioning it.

[0028] The support plate 6 is a baffle, and its length is matched with the driving roller 5. Multiple support plates 6 are driven by the lifting member 8 to pass through the slide 4 in the longitudinal direction to lift and position the marking station, so as to ensure the stability of the support plate 6 during the marking process. The rangefinder is arranged at the marking station and has a first ranging end 10 pointing to the upper end face of the workpiece in the longitudinal direction and a second ranging end 11 pointing to the side wall of the workpiece in the transverse direction of the slide 4. The height of the workpiece is detected by the first ranging end 10 to determine the longitudinal position of the marking. The second ranging end 11 is used to detect the side wall of the workpiece. Since the workpiece is generally annular, its position in the extension direction of the slide 4 is determined after the stopper 14 stops the workpiece. Therefore, the position of the workpiece in the width direction of the slide 4 can be accurately measured by the second ranging end 11. The rangefinder can be a laser rangefinder, and the two ranging ends are two ranging ends respectively.

[0029] The marking machine 3, the robotic arm 2, the distance meter, the lifting part 8, the first stepper motor and the telescopic rod 13 are connected to the controller accordingly. The telescopic rod 13 can be an electric push rod, and the controller can be a plc controller, which is correspondingly arranged in the control cabinet 1, so as to perform automatic marking according to actual needs, and perform accurate automatic marking based on the distance measurement conditions of the distance measurement end.

[0030] In this embodiment, the lower surface of the stopper 14 is provided with a flat bottom surface, through which the workpiece is stably clamped, and a rubber pad on one side of the bottom surface can be attached to avoid damage to the workpiece surface caused by squeezing the workpiece. After the support plate 6 lifts the workpiece, the stopper 14 contacts and stops and cooperates with the support plate 6 from top to bottom to clamp the workpiece, so there is no need to set up a separate clamping workpiece, reducing the cost of the equipment.

[0031] In an optional embodiment, a frame 9 corresponding to the marking station is arranged above the slide 4. The frame 9 is two door-type frames distributed at intervals on both sides of the slide 4. The frame 9 is arranged on the slide 4. Slide rails extending along the driving direction of the slide 4 are respectively arranged on both sides above the frame 9. The slide rails can be dovetail-shaped grooves. The two ends of the stop frame are slidably assembled on the slide rails through dovetail-shaped sliders matched with the slide rails. The frame 9 is provided with two slide rails extending along both sides of the slide 4. The two ends of the stop frame are slidably assembled on the slide rails through sliders. Studs for threaded assembly of the stop frame are arranged in the slide rails. The studs are driven by the first stepper motor. One end of the studs is connected to the first stepper motor, thereby realizing the reciprocating drive of the stop frame in the extension direction of the slide 4. The first stepper motor can be one or two. When the first stepper motor is one, the studs in the two slide rails are respectively connected to the two ends of the transmission shaft through bevel gears, and one of the studs or the transmission shaft is correspondingly connected to the first stepper motor to realize synchronous driving on both sides.

[0032] In an optional embodiment, a gantry 7 corresponding to the marking station is provided above the slide 4, a first measuring end 10 of the rangefinder is provided above the gantry 7, and a second measuring end 11 of the rangefinder is provided on the side of the gantry 7, so that the workpiece coordinates can be obtained through precise distance measurement after positioning is completed.

[0033] The first ranging end 10 is slidably assembled above the portal frame 7. A slide groove corresponding to the first ranging end 10 is provided on the portal frame 7. A stud corresponding to the first ranging end 10 is provided in the slide groove. The stud is driven by the second stepper motor to extend along the width direction of the slideway 4. A positioning rod 12 is provided on the side of the first ranging end 10. The positioning rod 12 extends longitudinally downward to the upper surface of the slideway 4. A touch switch corresponding to the workpiece is provided on the positioning rod 12. The positioning rod 12 moves with the first ranging end 10. When the side wall of the workpiece is touched, the second stepper motor stops driving. At this time, the first ranging end 10 can face the upper surface of the workpiece, thereby ensuring that the first ranging end 10 accurately points to the end of the annular workpiece.

[0034] In this embodiment, the second stepper motor and the touch switch are connected to the controller accordingly. The specific connection relationship and the method of controlling the automatic operation are all existing technologies and are not limited here.

[0035] The slide 4 includes a plurality of drive rollers 5 distributed at intervals, and a plurality of pallets 6 are connected to the bracket 15 accordingly. The bracket 15 is located below the slide 4 and faces the marking station. A lifting member 8 is provided at the bottom of the bracket 15. The bracket 15 is square and can be welded by square steel. The bracket 15 is located below the slide 4 and faces the marking station. A lifting member 8 is provided at the bottom of the bracket 15. The lifting member 8 can be four oil cylinders, and their control solenoid valves are connected to the controller accordingly. An adjusting bolt is provided at the bottom of the oil cylinder, so that the bracket 15 can be kept horizontal by adjustment. A plurality of pallets 6 are fixed above the bracket 15. The plurality of pallets 6 are respectively connected to the gaps between adjacent drive rollers 5 corresponding to the marking station. The length of the pallet 6 is adapted to the width of the slide 4, and the width is greater than the outer diameter of the drive roller 5. Therefore, under the drive of the lifting member 8, the plurality of pallets 6 pass through the gaps between the drive rollers 5 in the longitudinal direction to make the workpieces separate from the drive rollers 5 upward.

[0036] In an optional embodiment, the support plate 6 is fixed to the bracket 15 by bolts or welding, and both ends of the support plate 6 are bent upward to form a clamping groove. The overall width of the clamping groove is no greater than the gap between two adjacent driving rollers 5. A rubber plate is provided in the clamping groove, and the rubber plate extends upward from the upper surface of the support plate 6. The rubber plate reduces the hard contact with the workpiece to avoid damage to the surface quality of the workpiece.

[0037] In this embodiment, under normal circumstances, the workpiece after marking needs to be transferred to another workstation for storage or transportation. In order to facilitate the lifting of the workpiece, a notch is provided on the support plate 6 corresponding to the center line of the slide 4 to make way for the workpiece sling to pass through, or after the workpiece passes under the sling, the sling can be pulled out so that the workpiece can be quickly lifted and transferred.

[0038] In an optional embodiment, in order to adapt to different workpiece shapes, the rubber plate includes a plurality of rubber strips 19 spliced ​​to each other. For example, when targeting an annular workpiece, each independent rubber strip 19 moves independently, so that a portion of the rubber strip 19 can extend into the interior of the annular workpiece, thereby blocking the inner and outer walls of the annular workpiece, which can avoid radial displacement of the annular workpiece to a certain extent. A plurality of partitions 18 are provided inside the clamping groove to separate the plurality of rubber strips 19 to ensure the movement trajectory of each rubber strip 19.

[0039] In this embodiment, a reset spring 17 corresponding to the rubber strip 19 is provided at the bottom of the clamping groove, thereby ensuring that the rubber strip 19 can maintain a flat upper surface under normal conditions, and convex strips 16 corresponding to the two sides of the support plate 6 are provided on the upper edge of the rubber strip 19, which is stopped on the upper surface of the support plate 6 by the convex strips 16, thereby ensuring sufficient supporting capacity, and the length of the rubber strip 19 is adapted to the depth of the clamping groove. Specifically, after lifting the workpiece, the rubber strip 19 is pressed on the upper surface of the support plate 6 through the convex strips 16, and there is a certain space below to accommodate the reset spring 17. The specific length is selected according to the size of the spring, which will not be repeated here.

[0040] The partition plate 18 is fixed to the clamping groove by welding, so as to form a cavity independently corresponding to each rubber strip 19 , and the partition plate 18 is used to reinforce the support plate 6 to ensure the strength of the support plate 6 .

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A ring marking system, characterized in that: include: A slideway, the slideway is used for workpiece transmission, and a marking station is provided on the slideway; A marking machine, which is fixed to the side of the marking station by a mechanical arm to mark the workpiece; A stop frame, wherein the stop frame is slidably assembled along the conveying direction of the slideway by a first stepper motor, and the stop frame drives a stopper to be extended and retracted longitudinally above the marking station by a telescopic rod to stop the workpiece; A plurality of pallets are driven by a lifting member to pass through the slideway in the longitudinal direction to lift and position the marking station; A distance meter, the distance meter is arranged at the marking station and has a first distance measuring end pointing to the upper end surface of the workpiece in the longitudinal direction and a second distance measuring end pointing to the side wall of the workpiece in the transverse direction of the slideway; A controller, wherein the marking machine, the mechanical arm, the distance meter, the lifting member, the first stepping motor and the telescopic rod are connected to the controller accordingly.

2. The ring marking system according to claim 1, characterized in that: A frame corresponding to the marking station is arranged above the slideway, and the frame is provided with two slide rails extending along both sides of the slideway. Both ends of the stop frame are slidably assembled on the slide rails, and the slide rails are provided with studs for threadedly assembling the stop frame, and the studs are driven by the first stepper motor.

3. The ring marking system according to claim 1, characterized in that: A gantry frame corresponding to the marking station is arranged above the slideway, a first distance measuring end of a distance meter is arranged above the gantry frame, and a second distance measuring end of the distance meter is arranged on the side of the gantry frame.

4. The ring marking system according to claim 3, characterized in that: The first distance measuring end is slidably mounted above the portal frame and is extended along the width direction of the slideway through a second stepping motor. A positioning rod is provided on the side of the first distance measuring end. The positioning rod extends downward to the upper surface of the slideway, and a touch switch corresponding to the workpiece is provided on the positioning rod.

5. The ring marking system according to claim 4, characterized in that: The second stepping motor and the touch switch are connected to the controller accordingly.

6. The ring marking system according to claim 1, characterized in that: The slideway comprises a plurality of drive rollers distributed at intervals, and a plurality of the support plates are correspondingly connected to a bracket, the bracket is located below the slideway and directly opposite to the marking station, and a lifting member is provided at the bottom of the bracket.

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