A kind of automatic identification and sorting mechanism for round tube welds

Abstract

The invention discloses an automatic identification and sorting mechanism for round tube welds, comprising a grasping mechanism and a sorting mechanism; the grasping mechanism comprises a pneumatic finger clamp for grasping the round tube and a motion mechanism for driving the pneumatic finger clamp to move; the sorting mechanism comprises a sorting mechanism base and a weld rotation positioning mechanism, a sensor and a material dividing mechanism arranged on the sorting mechanism base, the round tube is arranged in the material dividing mechanism, the grasping mechanism grasps the round tube on the material dividing mechanism and places it on the weld rotation positioning mechanism; a positioning motor is arranged at the bottom of the weld rotation positioning mechanism, the sensor is arranged on the side of the weld positioning mechanism, and the weld rotation positioning mechanism is driven to rotate by the positioning motor until the sensor recognizes the weld.

Description

Technical Field

[0001] The invention relates to the field of automated processing, and in particular to an automatic round tube weld seam identification and sorting mechanism. Background Art

[0002] There are two main types of stainless steel round tubes on the market: 1. Stainless steel round tubes with welds, 2. Stainless steel round tubes without welds. The cost of making stainless steel round tubes without welds is nearly 15% more expensive than that of stainless steel round tubes with welds. Moreover, the processing technology of stainless steel round tubes without welds is more complicated, and manufacturers generally have order quantity requirements, and the material purchase and production cycle is very long. The production process of stainless steel round tubes with welds is simpler than that of stainless steel round tubes without welds, and the cost advantage is very high, but the weld of stainless steel round tubes with welds also has its inherent disadvantages. There will always be a dark mark after polishing, which is the inherent defect of the production process of stainless steel round tubes with welds.

[0003] Therefore, when using stainless steel round tubes with welds to produce parts, it is necessary to identify the welds, and hide the welds on the C surface (non-first angle appearance surface) of the product during the processing after identification. The traditional processing method for stainless steel round tubes with welds is manual identification and single-process processing, which has high labor costs and is prone to errors, and the welds are calibrated in different positions. Therefore, an automatic identification and sorting mechanism for round tube welds is needed that can accurately identify welds and calibrate the weld positions uniformly to ensure product processing quality. Summary of the invention

[0004] The main purpose of the present invention is to provide an automatic round tube weld identification and sorting mechanism which can accurately identify welds and calibrate weld positions uniformly so as to ensure product processing quality.

[0005] The present invention proposes an automatic identification and sorting mechanism for round tube welds, comprising a gripping mechanism and a sorting mechanism; the gripping mechanism comprises a pneumatic finger clamp for gripping round tubes and a motion mechanism for driving the pneumatic finger clamp to move; the sorting mechanism comprises a sorting mechanism base and a weld rotation positioning mechanism, a sensor and a material dividing mechanism arranged on the sorting mechanism base, the round tube is arranged in the material dividing mechanism, and the round tube on the material dividing mechanism is gripped by the gripping mechanism and placed on the weld rotation positioning mechanism; a positioning motor is arranged at the bottom of the weld rotation positioning mechanism, and the sensor is arranged on the side of the weld positioning mechanism, and the weld rotation positioning mechanism is driven to rotate by the positioning motor until the sensor identifies the weld.

[0006] Preferably, the material dividing mechanism includes a material dividing mechanism bracket arranged on the sorting mechanism base, a material dividing rotating clamp arranged on the material dividing mechanism bracket and rotatably connected to the material dividing mechanism bracket, a material dividing motor and a hopper for placing round tubes, the hopper is arranged on the top of the material dividing mechanism, and a plurality of clamping grooves for accommodating round tubes are arranged at equal angles on the side of the material dividing rotating clamp, and a discharge port is arranged at the bottom of the material dividing mechanism bracket. After the round tube enters the clamping groove of the material dividing rotating clamp from the hopper, it rotates to the discharge port position under the drive of the material dividing motor and is grabbed by the pneumatic finger clamp to leave the material dividing mechanism.

[0007] Preferably, a lifting mechanism for shaking the product in the hopper and causing the product in the hopper to fall is provided on the side of the hopper on the material distribution mechanism bracket.

[0008] Preferably, the material distribution mechanism further comprises a pushing mechanism arranged on the material distribution mechanism bracket, and the round tube arranged in the clamping groove is pushed toward the front end of the clamping groove by the pushing mechanism, thereby improving the grasping success rate of the grasping mechanism.

[0009] Preferably, the gripping mechanism further comprises a gripping mechanism base, and the motion mechanism is arranged on the gripping mechanism base.

[0010] Preferably, the motion mechanism comprises a vertical motion mechanism, a horizontal motion mechanism arranged on the vertical motion mechanism, and a rotation mechanism arranged on the horizontal motion mechanism, and the pneumatic finger clamp is arranged on the rotation mechanism.

[0011] Preferably, the rotating mechanism is a rotating cylinder.

[0012] Preferably, the weld rotation positioning mechanism also includes a weld rotation positioning mechanism bracket and a positioning fixture arranged on the top of the weld rotation positioning mechanism bracket, the positioning motor is arranged at the bottom of the weld rotation positioning mechanism bracket and is fixedly connected to the weld rotation positioning mechanism, the output shaft of the positioning motor passes through the weld rotation positioning mechanism bracket and is fixedly connected to the positioning fixture, and a circular connecting protrusion is arranged on the top of the positioning fixture, and a round tube can be uprightly sleeved on the connecting protrusion.

[0013] The beneficial effects of the automatic identification and sorting mechanism for round tube welds of the present invention are:

[0014] 1. By adopting automated screening methods instead of manual screening, labor costs can be reduced, screening efficiency and quality can be improved, thereby improving the yield and ensuring the quality of subsequent processing.

[0015] 2. Strong expandability. Currently, photoelectric sensors can only detect welds, but by replacing them with other more powerful sensors, such as industrial cameras, they can also detect quality problems such as scratches on the round tube according to processing requirements, thereby adapting to the different processing requirements of different processing companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the automatic identification and sorting mechanism for round tube welds of the present invention;

[0017] Figure 2 This is a disassembly diagram of the automatic identification and sorting mechanism for round tube welds of the present invention;

[0018] Figure 3 It is a structural schematic diagram of a sorting mechanism of the automatic round tube weld identification and sorting mechanism of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a sorting mechanism of the automatic round tube weld identification and sorting mechanism of the present invention;

[0020] Figure 5 It is a structural schematic diagram of the weld rotation positioning mechanism of the automatic round tube weld identification and sorting mechanism of the present invention;

[0021] Numbers in the figure: 1. grabbing mechanism, 2. sorting mechanism, 3. round tube, 11. grabbing mechanism base, 12. vertical movement mechanism, 13. horizontal movement mechanism, 14. rotating mechanism, 15. pneumatic finger clamp, 21. sorting mechanism base, 22. material dividing mechanism bracket, 23. material dividing rotating fixture, 24. weld rotation positioning mechanism, 25. sensor, 26. hopper, 27. material lifting mechanism, 28. material dividing motor, 29. pushing mechanism, 241. weld rotation positioning mechanism bracket, 242. positioning motor, 243. positioning fixture, 244. connecting bump, 281. gear box, 282. transmission belt.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0024] Reference Figures 1 to 5 , an embodiment of the automatic identification and sorting mechanism for round tube welds of the present invention is proposed:

[0025] A round tube weld seam automatic identification and sorting mechanism comprises a grabbing mechanism 1 and a sorting mechanism 2.

[0026] The gripping mechanism 1 includes a gripping mechanism base 11, a motion mechanism disposed on the gripping mechanism base 11, and a pneumatic finger clamp 15 disposed on the motion mechanism. The motion mechanism includes a vertical motion mechanism 12 disposed on the gripping mechanism base 11, a horizontal motion mechanism 13 disposed on the vertical motion mechanism 12, and a rotation mechanism 14 disposed on the horizontal motion mechanism 13. The horizontal motion mechanism 13 can move in the vertical direction through the vertical motion mechanism 12, and the rotation mechanism 14 can move in the horizontal direction through the horizontal motion mechanism 13. The rotation mechanism 14 is a rotary cylinder, and the pneumatic finger clamp 15 is disposed on the rotary cylinder. A drag chain for supplying power to the horizontal motion mechanism 13 is disposed on the side of the vertical motion mechanism 12.

[0027] The sorting mechanism 2 includes a sorting mechanism base 21, a weld rotation positioning mechanism 24 arranged on the sorting mechanism base 21, a sensor 25 and a material sorting mechanism. The sensor 25 is a photoelectric sensor, which finds the weld by the difference in light reflected by the weld of the round tube 3. The material sorting mechanism includes a material sorting mechanism bracket 22, a material sorting rotating fixture 23 arranged on the material sorting mechanism bracket 22 and rotatably connected to the material sorting mechanism bracket 22, a gear box 281, a material sorting motor 28, a hopper 26, a material pushing mechanism 27 and a pushing mechanism 29.

[0028] The material distribution mechanism support 22 includes a material distribution mechanism base, a front baffle, a middle partition, a material distribution mechanism rear shell and a plurality of side cover plates. The material distribution mechanism base is arranged on the sorting mechanism base 21 and is threadedly connected with the sorting mechanism base.

[0029] The weld rotation positioning mechanism 24 includes a weld rotation positioning mechanism bracket 241, a positioning motor 242 disposed at the bottom of the weld rotation positioning mechanism bracket 241, and a positioning fixture 243 disposed at the top of the weld rotation positioning mechanism bracket 241. The weld rotation positioning mechanism bracket 241 passes through the sorting mechanism base 21 and is fixedly connected to the material sorting mechanism base. The output shaft of the positioning motor 242 passes through the weld rotation positioning mechanism bracket 241 and is fixedly connected to the positioning fixture 243. A circular connecting protrusion 244 is disposed on the top of the positioning fixture 243, and the round tube 3 can be vertically sleeved on the connecting protrusion 244.

[0030] The bottom of the middle partition is fixedly connected to the base of the material distribution mechanism, the gear box 281 is arranged behind the middle partition and fixedly connected to the middle partition, the material distribution motor 28 is arranged on the side of the gear box 281 and fixedly connected to the rear side of the middle partition, and the output shaft of the material distribution motor 28 is connected to the input shaft of the gear box 281 through the transmission belt 282. The output shaft of the gear box 281 passes through the front side of the middle partition and is rotatably connected to the material distribution rotating fixture 23. A plurality of clamping grooves for accommodating the round tube 3 are arranged at equal angles on the side of the material distribution rotating fixture 23, and there are six clamping grooves in total. A pushing hole is arranged on the rear side of the middle partition, and a pushing mechanism 29 is arranged on the pushing hole. The round tube 3 arranged in the clamping groove is pushed to the front end of the clamping groove by the pushing mechanism 29, thereby improving the grasping success rate of the grasping mechanism 1. The front baffle is arranged at the front end of the middle partition, the bottom of the front baffle is fixedly connected to the base of the material distribution mechanism, and a square discharge port is arranged on the front side of the front baffle. The side cover plate is arranged on the side between the front baffle and the middle partition. There is a certain gap between the front baffle and the material dividing rotating clamp 23. The front end of the round tube 3 can be pushed into the gap by the pushing mechanism 29, so that the grasping mechanism 1 can grasp it.

[0031] The hopper 26 is arranged on the top of the material distribution rotating fixture 23, and the hopper 26 is fixedly connected to the front baffle by screw connection, and the round tube 3 enters the material distribution rotating fixture 23 through the hopper 26. A material ejection mechanism 27 is also arranged on the side of the front baffle, and the material ejection mechanism 27 can shake the product in the hopper and make the product in the hopper 26 fall.

[0032] During operation, the round tube 3 is first placed into the hopper 26 by the staff, and the material distribution motor 28 drives the material distribution rotating fixture 23 to rotate. The material distribution rotating fixture 23 will pause every 60 degrees until the round tube 3 in the hopper 26 falls into the clamping groove, the pushing mechanism 29 finishes pushing, and the grabbing mechanism 1 takes away the round tube 3 in the lower discharge port. It will continue to rotate after these three working results. Each time the lifting mechanism 27 shakes the hopper 26 to make the round tube 3 in the hopper 26 fall smoothly. Then the material distribution motor 28 drives the round tube 3 to rotate to the next process, and the front end of the round tube 3 is pushed into the gap between the front baffle and the middle partition by the pushing mechanism 29, and then the material distribution motor 28 drives the round tube 3 to rotate to the discharge port, and the pneumatic finger clamp 15 of the grabbing mechanism 1 extends into the discharge port to take away the round tube 3. When the material distribution motor 28 drives the round tube 3 to rotate, a control sensor set on the front baffle will be used to observe whether the material distribution rotating fixture 23 is in place during the rotation process. If it is not in place, the material distribution motor 28 will be driven to make a certain compensation rotation until it is in place. After the grabbing mechanism 1 takes the material, it places the round tube 3 on the positioning fixture 243 at the upper end of the weld rotation positioning mechanism 24. The positioning motor 242 drives the positioning fixture 243 to rotate, and the photoelectric sensor set next to it is used to find the weld position on the round tube 3. Then, the round tube 3 with the weld position found is grabbed by other manipulators for the next step of processing.

[0033] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic identification and sorting mechanism for round tube welds, characterized in that: It comprises a grabbing mechanism and a sorting mechanism; the grabbing mechanism comprises a pneumatic finger clamp for grabbing a round tube and a motion mechanism for driving the pneumatic finger clamp to move; the sorting mechanism comprises a sorting mechanism base and a weld rotation positioning mechanism, a sensor and a material separation mechanism arranged on the sorting mechanism base, the round tube is arranged in the material separation mechanism, and the round tube on the material separation mechanism is grabbed by the grabbing mechanism and placed on the weld rotation positioning mechanism; a positioning motor is arranged at the bottom of the weld rotation positioning mechanism, and the sensor is arranged on the side of the weld positioning mechanism, and the weld rotation positioning mechanism is driven to rotate by the positioning motor until the sensor recognizes the weld; The weld rotation positioning mechanism also includes a weld rotation positioning mechanism bracket and a positioning fixture arranged on the top of the weld rotation positioning mechanism bracket. The positioning motor is arranged at the bottom of the weld rotation positioning mechanism bracket and is fixedly connected to the weld rotation positioning mechanism. The output shaft of the positioning motor passes through the weld rotation positioning mechanism bracket and is fixedly connected to the positioning fixture. A circular connecting protrusion is arranged on the top of the positioning fixture, and a round tube can be uprightly sleeved on the connecting protrusion.

2. The automatic identification and sorting mechanism for round tube welds according to claim 1 is characterized in that: The material dividing mechanism includes a material dividing mechanism bracket arranged on the sorting mechanism base, a material dividing rotating clamp arranged on the material dividing mechanism bracket and rotatably connected to the material dividing mechanism bracket, a material dividing motor and a hopper for placing round tubes, wherein the hopper is arranged on the top of the material dividing mechanism, and a plurality of clamping grooves for accommodating round tubes are arranged at equal angles on the side of the material dividing rotating clamp, and a discharge port is arranged at the bottom of the material dividing mechanism bracket. After the round tube enters the clamping groove of the material dividing rotating clamp from the hopper, it rotates to the discharge port position under the drive of the material dividing motor and is grabbed by the pneumatic finger clamp to leave the material dividing mechanism.

3. The automatic identification and sorting mechanism for round tube welds according to claim 2 is characterized in that: A material-lifting mechanism for shaking the product in the hopper and causing the product in the hopper to fall is arranged on the side of the hopper on the material-distributing mechanism bracket.

4. The automatic identification and sorting mechanism for round tube welds according to claim 2 is characterized in that: The material distribution mechanism also includes a pushing mechanism arranged on the material distribution mechanism bracket, through which the round tube arranged in the clamping groove is pushed toward the front end of the clamping groove, thereby improving the grasping success rate of the grasping mechanism.

5. The automatic identification and sorting mechanism for round tube welds according to claim 1 is characterized in that: The gripping mechanism further comprises a gripping mechanism base, and the motion mechanism is arranged on the gripping mechanism base.

6. The automatic identification and sorting mechanism for round tube welds according to claim 5 is characterized in that: The motion mechanism comprises a vertical motion mechanism, a horizontal motion mechanism arranged on the vertical motion mechanism, and a rotation mechanism arranged on the horizontal motion mechanism, and the pneumatic finger clamp is arranged on the rotation mechanism.

7. The automatic identification and sorting mechanism for round tube welds according to claim 6 is characterized in that: The rotating mechanism is a rotating cylinder.

Images