A positioning system for automatic feeding and conveying of multi-variety and small-batch parts on a production line

Abstract

The present invention discloses a positioning system for automatic feeding and conveying of multi-variety and small-batch parts. The positioning system includes a tray, a bearing plate, a roller conveying device, a movable positioning component, a lifting positioning device and a fixed positioning component; the bearing plate is arranged on the tray, and the tray is arranged on the rollers of the roller conveying device. The lifting positioning device is matched with the bearing plate, and the movable positioning component and the fixed positioning component are matched with the tray. By providing two positioning mechanisms for the tray, namely the movable positioning component and the fixed positioning component, the stability and accuracy of the entire feeding and conveying are ensured. And through the cooperation of the lifting positioning device, both two-layer plate trays can be fixed with a compact structure and high reliability. By providing a limiting pin and a limiting groove matching mechanism between the tray and the bearing plate, the stable fixation between the two is ensured, thereby ensuring the smoothness of the subsequent conveying process.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure testing, and particularly to a double-layer loading and conveying structure with an installation and positioning structure. Background Art

[0002] With the development of economic globalization, the market has changed from a seller's market to a buyer's market. In the past two or three decades, the market demand in the manufacturing industry has begun to develop towards diversification and personalization, and the production of manufacturing enterprises has shifted to multi-variety and small-batch production.

[0003] However, in the entire production line of material production, the objects to be processed are frequently transported from one machine tool to another, making it difficult to ensure the usage efficiency of the machine tools. To further improve production efficiency, production enterprises have carried out flexible manufacturing work, but the entire handling system is difficult to ensure the stability of the loading position, thus affecting the processing efficiency. And enterprises have put forward higher and higher requirements for the logistics conveying equipment of multi-variety and small-batch parts, such as: accurate positioning, good stability, and high reliability. Summary of the Invention

[0004] The purpose of the present invention is to provide a positioning system for automatic loading and conveying of multi-variety and small-batch parts, achieving the effects of accurate positioning, good stability, and high reliability of the bearing plate during the entire loading process.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A positioning system for automatic loading and conveying of multi-variety and small-batch parts, the positioning system includes a tray, a bearing plate, a roller conveying device, a movable positioning component, a lifting positioning device, and a fixed positioning component;

[0006] The bearing plate is arranged on the tray, and the tray is arranged on the rollers of the roller conveying device. The lifting positioning device is matched with the bearing plate, and the movable positioning component and the fixed positioning component are matched with the tray.

[0007] Preferably, the bearing plate is arranged on the tray columns of the tray, and guiding edge guards are symmetrically arranged on the tray; a limit pin is arranged on the tray, and a limit groove matched with the limit pin is arranged on the bearing plate.

[0008] Preferably, the limit pin includes a large limit pin and a small limit pin, and the limit groove includes a large limit groove and a small limit groove respectively matched with the large limit pin and the small limit pin.

[0009] Preferably, the lifting and positioning device is provided with a cylinder, and the cylinder is installed on the frame of the roller conveying device. The output end of the cylinder is provided with a lifting plate. On the lifting plate, there are a pair of sealed air inspection support flat heads, a positioning pin with an upper cone and a lower circle, and a positioning pin with an upper cone and a rhombus cut on the side. The pair of sealed air inspection support flat heads are in contact with the bottom surface of the bearing plate. The bearing plate is provided with positioning holes that cooperate with the positioning pin with an upper cone and a lower circle and the positioning pin with an upper cone and a rhombus cut on the side.

[0010] The tray is provided with an opening, and a pair of sealed air inspection support flat heads, a positioning pin with an upper cone and a lower circle, and a positioning pin with an upper cone and a rhombus cut on the side all pass through the opening and the rollers of the roller conveying device.

[0011] Preferably, a lower plate is provided on the frame of the roller conveying device. A guide shaft is provided on the lower side wall of the lifting plate. The lower plate is provided with a straight flange linear bearing that cooperates with the guide shaft.

[0012] Preferably, a limit sleeve is provided at the lower end of the guide shaft.

[0013] Preferably, the pair of sealed air inspection support flat heads are arranged diagonally, and the positioning pin with an upper cone and a lower circle and the positioning pin with an upper cone and a rhombus cut on the side are arranged diagonally.

[0014] Preferably, the sealed air inspection support flat head is provided with a support column and a test flat head that are fixedly connected to each other. An air vent joint is provided on the side wall of the test flat head, and the air vent joint is connected to a pressure device. A sealing soft sleeve is provided at the upper end of the test flat head.

[0015] Preferably, the movable positioning assembly is provided with a swing arm rotating frame and a second cylinder, and both the swing arm rotating frame and the second cylinder are arranged on the frame of the roller conveying device. The swing arm rotating frame is hinged with a "C"-shaped swing arm, and the output end of the second cylinder is hinged to the lower side wall of the "C"-shaped swing arm. A swing arm shaft is provided at the head of the "C"-shaped swing arm, and a bearing is provided outside the swing arm shaft. The bearing plate is provided with a flat block, and the flat block cooperates with the bearing.

[0016] Preferably, the reference positioning assembly is provided with a fixing frame. A semi-circular convex block is provided on the fixing frame. The tray is provided with a positioning groove that cooperates with the semi-circular convex block.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing two positioning mechanisms for the tray, namely the movable positioning assembly and the fixed positioning assembly, the stability and accuracy of the entire feeding and conveying are ensured. And through the cooperation of the lifting and positioning device, both layers of plate-like trays can be fixed with a compact structure and high reliability.

[0018] By providing a limiting pin and a limiting groove cooperation mechanism between the tray and the bearing plate, the stable fixation between the two is ensured, thereby ensuring the smoothness of the subsequent conveying process.

[0019] Through a plurality of positioning pin structures installed at the roller conveyor device and arranged diagonally, the safety and stability of the entire lifting process are ensured. And through the cooperation of the sealed air inspection support flat head, it is convenient to detect the airtightness of the installation, so as to ensure the stable installation of the bearing plate.

[0020] Through the setting of the fixed positioning component, the pallet after reaching the position is initially fixed, ensuring that the pallet will not be driven along with the roller conveyor device, so as to achieve the positioning effect of the feeding and conveying.

[0021] Through the setting of the movable positioning component, the pallet after reaching the position is further arched. Through the rotation and extrusion of the "C"-shaped swing arm to limit the flat block, it is ensured that the pallet will not shift in other directions after reaching the position, so as to ensure the stable docking of the subsequent bearing plate. Description of the Drawings

[0022] Figure 1 It is a side view of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0023] Figure 2 It is a three-dimensional view of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0024] Figure 3 It is a three-dimensional view of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0025] Figure 4 It is a three-dimensional view of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0026] Figure 5 It is a schematic diagram of the lifting and positioning device of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0027] Figure 6 It is a schematic diagram of the pallet of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0028] Figure 7 It is a schematic diagram of the sealed air inspection support flat head of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0029] Figure 8 It is a sectional view in the B-B direction of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0030] Figure 9 It is a three-dimensional view of the positioning system for the automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0031] Figure 10This is a side view of the positioning system for automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0032] Figure 11 This is a top view of the "C"-shaped swing arm of the positioning system for automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0033] Figure 12 This is a schematic diagram of the reference positioning component of the positioning system for automatic feeding and conveying of multi-variety and small-batch parts in the present invention.

[0034] 1. Pallet; 2. Carrier plate; 3. Roller conveying device; 4. Movable positioning component; 5. Lifting positioning device; 6. Fixed positioning component; 601. Fixed frame; 602. Semi-circular convex block; 7. Roller; 8. Cylinder; 9. Lifting plate; 10. Pair of sealed air inspection support flat heads; 11. Positioning pin with upper cone and lower circle; 12. Positioning pin with upper cone and rhombus cut on the side; 13. Opening; 14. Pallet support column; 15. Guide edge; 16. Limit pin; 17. Limit groove; 18. Positioning hole; 19. Lower plate; 20. Guide shaft; 21. Straight flange linear bearing; 22. Limit sleeve; 23. Support column; 24. Test flat head; 25. Ventilation joint; 26. Sealing soft sleeve; 27. Swing arm rotating frame; 28. "C"-shaped swing arm; 29. Second cylinder; 30. Bearing; 31. Flat block. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1-12 , the present invention provides a technical solution: a positioning system for automatic feeding and conveying of multi-variety and small-batch parts, the positioning system includes a pallet 1, a carrier plate 2, a roller conveying device 3, a movable positioning component 4, a lifting positioning device 5 and a fixed positioning component 6; a double-layer conveying structure is adopted to convey and position the fittings.

[0037] The bearing plate 2 is arranged on the tray 1. Since the bearing plate 2 needs to cooperate with the machine tool fixture, there is a height space between the lower part of the bearing plate 2 and the middle of the tray 1. A structure that cooperates with the machine tool positioning component can be set below the bearing plate 2 in this space; because the lower part of the bearing plate 2 cooperates with the positioning component and has a positioning structure, it is inconvenient to transport on the conveying equipment. Therefore, the bearing plate 2 is placed on the tray 1 for indirect transportation, support and positioning of the bearing plate 2, and the tray 1 is arranged on the rollers of the roller conveying device 3, so as to achieve the overall conveying effect. The lifting and positioning device 5 cooperates with the bearing plate 2. When the lifting and positioning device 5 is lifted, the bearing plate 2 is further positioned. The movable positioning component 4 and the fixed positioning component 6 cooperate with the tray 1 to fix the position of the tray 1 conveyed in place.

[0038] The bearing plate 2 is arranged on the tray support column 14 of the tray 1 to achieve the supporting effect on the bearing plate 2. Guide edges 15 are symmetrically arranged on the tray 1 to ensure the normal displacement of the tray 1 on the roller conveying device 3. When the rollers of the roller conveying device 3 rotate, the directional conveying of the tray 1 can be completed; a limit pin 16 is arranged on the tray 1, and a limit groove 17 that cooperates with the limit pin 16 is arranged on the bearing plate 2. While the tray support column 14 supports the bearing plate 2, the two can be further positioned through the limit pin 16 and the limit groove 17. During use, only a handling mechanism is needed to clamp and handle the bearing plate 2.

[0039] The limit pin 16 includes a large limit pin and a small limit pin, and the limit groove 17 includes a large limit groove and a small limit groove that respectively match the large limit pin and the small limit pin. By the large limit pin and the small limit pin arranged on both sides, it is ensured that the bearing plate 2 will not be installed backwards front and back when installed on the tray 1.

[0040] In order to position the bearing plate 2, the lifting and positioning device 5 is provided with a cylinder 8, and the cylinder 8 is installed on the frame of the roller conveying device 3. The output end of the cylinder 8 is provided with a lifting plate 9. The lifting plate 9 is provided with a pair of sealed air inspection support flat heads 10, a positioning pin 11 with a conical upper part and a round lower part, and a positioning pin 12 with a conical upper part and a rhombus cut on the side, a total of four protruding parts. At the same time, the positioning pin 11 with a conical upper part and a round lower part and the positioning pin 12 with a conical upper part and a rhombus cut on the side have the same height. A pair of sealed air inspection support flat heads 10 are in contact with the bottom surface of the bearing plate 2. When the sealed air inspection support flat heads 10 contact the bearing plate 2, it will feedback to the air pressure change, so as to detect the presence or absence of the bearing plate 2. The bearing plate 2 is provided with positioning holes 18 that cooperate with the positioning pin 11 with a conical upper part and a round lower part and the positioning pin 12 with a conical upper part and a rhombus cut on the side, so as to realize the plug-in positioning of the bearing plate 2.

[0041] To ensure the avoidance of the tray 1 from the lifting and positioning device 5, the tray 1 is provided with an opening 13, and a pair of sealed air inspection support flat heads 10, a positioning pin 11 with an upper cone and a lower circle, and a positioning pin 12 with an upper cone and a rhombus cut on the side all pass through the opening 13 and the roller 7 of the roller conveyor device 3 to avoid collisions during the positioning process.

[0042] To achieve the directional effect of the lifting of the lifting plate 9, a lower plate 19 is provided on the frame of the roller conveyor device 3. A guide shaft 20 is provided on the lower side wall of the lifting plate 9, and the lower plate 19 is provided with a straight flange linear bearing 21 that cooperates with the guide shaft 20. In this way, when the guide shaft 20 slides in the straight flange linear bearing 21, the lifting direction positioning of the lifting plate 9 can be ensured. The guide shaft 20 and the straight flange linear bearing 21 are preferably 4 in number and are distributed at the four corners of the lifting plate 9 and the lower plate 19. A limit sleeve 22 is provided at the lower end of the guide shaft 20 to limit the maximum displacement distance of the lifting plate 9.

[0043] A pair of sealed air inspection support flat heads 10 are arranged diagonally, and the positioning pin 11 with an upper cone and a lower circle and the positioning pin 12 with an upper cone and a rhombus cut on the side are arranged diagonally, so as to further ensure that the carrier plate 2 will not be placed in the wrong direction.

[0044] The sealed air inspection support flat head 10 is provided with a support column 23 and a test flat head 24 that are fixedly connected to each other. A cylindrical cavity is provided on the test flat head 24. An air vent joint 25 is provided on the side wall of the test flat head 24, and the air vent joint 25 is connected to the pressure device and the cylindrical cavity part. A sealing soft sleeve 26 is provided at the upper end of the test flat head 24. In this way, when the sealing soft sleeve 26 is in full contact with the carrier plate 2, the gas output by the pressure device will act on the carrier plate 2, so as to measure whether the carrier plate 2 is accurately positioned. The sealing soft sleeve 26 is fixed by a gland through a screw structure.

[0045] To ensure the fixed position of the tray 1 during the placement of the carrier plate 2, a movable positioning assembly 4 is provided. The movable positioning assembly 4 is provided with a swing arm rotating frame 27 and a second cylinder 29. The swing arm rotating frame 27 is fixedly installed on the frame of the roller conveyor device 3, and the second cylinder 29 is hinged to the frame of the roller conveyor device 3. The swing arm rotating frame 27 is hinged with a "C"-shaped swing arm 28, and the output end of the second cylinder 29 is hinged to the lower side wall of the "C"-shaped swing arm 28. In this way, the position of the head of the "C"-shaped swing arm 28 can be adjusted during the telescopic process of the second cylinder 29. A swing arm shaft is provided at the head of the "C"-shaped swing arm 28, and bearings 30 are provided outside the swing arm shaft. The two ends of the bearings 30 are fixed by end flat head pin shafts, and the bearings 30 are separated by spacer sleeves. The carrier plate 2 is provided with flat blocks 31, and the flat blocks 31 cooperate with the bearings 30. In this way, after the tray 1 is in place, when the rotated "C"-shaped swing arm is rotated, the multiple bearings 30 will fit with the flat blocks 31. When all the bearings are in complete contact with the flat blocks, it can be positioned.

[0046] To further ensure the position of the tray 1, a reference positioning component 6 is provided. The reference positioning component 6 is provided with a fixing frame 601, and a semi-circular convex block 602 is provided on the fixing frame 601. The tray 1 is provided with a positioning groove 18 that cooperates with the semi-circular convex block 602. After the semi-circular convex block 602 is inserted into the positioning groove 18, the reference positioning component 6 will complete the further positioning of the tray 1. Preferably, two semi-circular convex blocks 602 are symmetrically provided.

[0047] Working principle: During normal transportation, the tray 1 can be placed alone on the roller conveying device 3. Through the self-rotation of the roller structure of the roller conveying device 3 and the positioning cooperation of the guiding edge 15, the transmission of the tray 1 is completed. When the tray 1 is in place, the movable positioning component 4 and the fixed positioning component 6 perform preliminary positioning on the tray 1.

[0048] During the operation process, the tray 1 first cooperates with the reference positioning component 6, and the semi-circular convex block 602 at the fixing frame 601 is inserted into the positioning groove 18, so that the position of the tray 1 will be preliminarily fixed. Then, the second cylinder 29 is opened to extend its own length, so that the output end of the second cylinder 29 will drive the "C"-shaped swing arm to rotate. Since the "C"-shaped swing arm rotates on the frame of the roller conveying device 3 by itself, the head of the "C"-shaped swing arm will rotate by itself, so as to cooperate with the flat block 31 at the tray 1. In this way, the movable positioning component 4 will cooperate with the reference positioning component 6 to complete the precise positioning of the position of the tray 1.

[0049] After the position of the tray 1 is stably fixed, the lifting positioning device 5 is started, and the cylinder 8 is started to extend its output end. In this way, a pair of sealed air inspection support flat heads 10, a positioning pin 11 with an upper cone and a lower circle, and a positioning pin 12 with an upper cone and a rhombus cut on the side will simultaneously pass through the opening 13. At the same time, the carrying plate 2 is transported above the tray 1 by using a handling device. In this way, the protruding positioning pin 11 with an upper cone and a lower circle and the positioning pin 12 with an upper cone and a rhombus cut on the side will be inserted and cooperated with the positioning hole 18, so as to realize the positioning of the tray 1. At the same time, a pair of sealed air inspection support flat heads 10 will be attached to the bottom surface of the tray 1. Since the sealed air inspection support flat heads 10 are connected to an external pressure device, the pressure device will sense the change of the output pressure, so as to determine whether the carrying plate 2 is completely in place.

[0050] When the carrying plate 2 falls on the tray 1, it will be supported by the tray support column 14 to complete the preliminary fixing. At the same time, the large limit pin and the small limit pin will cooperate with the large limit groove and the small limit groove respectively to complete the further positioning between the carrying plate 2 and the tray 1, so as to achieve the effect of rapid transportation and rapid positioning of double-layer plate trays on the production line.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning system for automatic feeding and conveying of multi-variety and small-batch parts, characterized in that: the positioning system includes a tray (1), a bearing plate (2), a roller conveying device (3), a movable positioning component (4), a lifting positioning device (5) and a fixed positioning component (6); the bearing plate (2) is arranged on the tray (1), and the tray (1) is arranged on the rollers of the roller conveying device (3), the lifting positioning device (5) cooperates with the bearing plate (2), and the movable positioning component (4) and the fixed positioning component (6) cooperate with the tray (1); the lifting positioning device (5) is provided with a cylinder (8), and the cylinder (8) is installed on the frame of the roller conveying device (3), the output end of the cylinder (8) is provided with a lifting plate (9), and the lifting plate (9) is provided with a pair of sealed air inspection support flat heads (10), a positioning pin (11) with an upper cone and a lower circle, and a positioning pin (12) with an upper cone and a rhombus cut on the side, the pair of sealed air inspection support flat heads (10) are attached to the bottom surface of the bearing plate (2), and the bearing plate (2) is provided with positioning holes (18) that cooperate with the positioning pin (11) with an upper cone and a lower circle and the positioning pin (12) with an upper cone and a rhombus cut on the side; the tray (1) is provided with an opening (13), and a pair of sealed air inspection support flat heads (10), a positioning pin (11) with an upper cone and a lower circle, and a positioning pin (12) with an upper cone and a rhombus cut on the side all pass through the opening (13) and the roller (7) of the roller conveying device (3); the pair of sealed air inspection support flat heads (10) are arranged diagonally, and the positioning pin (11) with an upper cone and a lower circle and the positioning pin (12) with an upper cone and a rhombus cut on the side are arranged diagonally; the sealed air inspection support flat head (10) is provided with a support column (23) and a test flat head (24) that are fixedly connected to each other, the side wall of the test flat head (24) is provided with a ventilation joint (25), and the ventilation joint (25) is connected to a pressure device, and the upper end of the test flat head (24) is provided with a sealing soft sleeve (26).

2. The positioning system for automatic feeding and conveying of multi-variety and small-batch parts according to claim 1, characterized in that: the bearing plate (2) is arranged on the tray support columns (14) of the tray (1), and guide retaining edges (15) are symmetrically arranged on the tray (1); a limit pin (16) is arranged on the tray (1), and the bearing plate (2) is provided with a limit groove (17) that cooperates with the limit pin (16).

3. The positioning system for automatic feeding and conveying of multi-variety and small-batch parts according to claim 2, characterized in that: the limit pin (16) includes a large limit pin and a small limit pin, and the limit groove (17) includes a large limit groove and a small limit groove that respectively match the large limit pin and the small limit pin.

4. The positioning system for automatic feeding and conveying of multi-variety and small-batch parts according to claim 1, characterized in that: a lower plate (19) is arranged on the frame of the roller conveying device (3), a guide shaft (20) is arranged on the lower side wall of the lifting plate (9), and the lower plate (19) is provided with a straight flange linear bearing (21) that cooperates with the guide shaft (20).

5. The positioning system for automatic feeding and conveying of multi-variety and small-batch parts according to claim 4, characterized in that: a limit sleeve (22) is provided at the lower end of the guiding shaft (20).

6. The positioning system for automatic feeding and conveying of multi-variety and small-batch parts according to claim 1, characterized in that: the movable positioning assembly (4) is provided with a swing arm rotating frame (27) and a second cylinder (29), and both the swing arm rotating frame (27) and the second cylinder (29) are arranged on the frame of the roller conveying device (3). The swing arm rotating frame (27) is hinged with a "C"-shaped swing arm (28), and the output end of the second cylinder (29) is hinged to the lower side wall of the "C"-shaped swing arm (28). A swing arm shaft is provided at the head of the "C"-shaped swing arm (28), and a bearing (30) is arranged outside the swing arm shaft. The bearing plate (2) is provided with a flat block (31), and the flat block (31) is matched with the bearing (30).

7. The positioning system for automatic feeding and conveying of multi-variety and small-batch parts according to claim 1, characterized in that: the fixed positioning assembly (6) is provided with a fixed frame (601), a semi-circular convex block (602) is arranged on the fixed frame (601), and the tray (1) is provided with a positioning groove matched with the semi-circular convex block (602).

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