Jig production line system

Abstract

The invention discloses a jig production line system, belongs to the technical field of jig welding production lines, and particularly relates to a laser solder ball tin soldering production line system which particularly comprises a carrier conveying return line, a stopping mechanism and a positioning jacking mechanism and further comprises a welding manipulator and a control system, and the stopping mechanism and the positioning jacking mechanism are arranged on the carrier conveying return line. The carrier conveying return line comprises a two-channel double-layer conveying line, the conveying line comprises two parallel rails and idler wheels arranged at the two ends of the rails, a conveying belt is arranged on the idler wheels, a return elevator is arranged at one end of the carrier conveying return line, and a feeding and discharging workbench is arranged at the other end of the carrier conveying return line; the mechanism is simple, universal, high in stability, high in precision, low in cost and high in practicability, the labor intensity of workers is reduced, and the productivity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of jig welding production lines, and in particular to a laser tin ball soldering production line system, which is used for producing jigs for 3C products. Background Art

[0002] At present, China has made considerable progress in the field of automatic assembly and welding of parts, including diversion and return systems, positioning assembly systems, material diversion systems, material collection systems, etc., which have realized the formation of a closed loop in the production process, improved the level of equipment automation, and increased production efficiency and reduced labor intensity.

[0003] Laser technology is a precision processing technology. Due to its fast radiation speed, high radiation power, fast response speed, small radiation area and strong controllability, it can achieve precision cutting, heating and welding functions in a relatively short time. Therefore, it is widely used in modern industrial fields such as mechanical engineering, microelectronics engineering, automotive engineering and other fields.

[0004] The layout of the production line system mainly includes: product-centered layout, process-specific layout and process-centered layout. Therefore, there will be circular, U-shaped, straight-line, broken-line and other layout forms. In the process-centered production line, the product is processed through each process in turn according to the process. Each process has different processing factors, such as welding time and assembly complexity, so the production rhythm of the process is different. The production capacity of the production line is determined by the longest process. At this time, the equipment with the shortest time is in a waiting state, and the equipment efficiency cannot be maximized.

[0005] During the production and processing of the fixture, the fixture needs to be welded, especially for PVD fixtures for 3C products. It is difficult to ensure accurate positioning of the fixture with heterogeneous structure during the welding process, and the NG rate is high. Summary of the invention

[0006] The main purpose of the present invention is to provide a production line system, including a dual-channel material conveying return line, a welding positioning platform and a welding control system, to achieve synchronous operation of loading and unloading, reduce the transmission time of the transmission belt, further improve production efficiency, reduce labor stress, and optimize space occupancy.

[0007] To achieve the above-mentioned purpose, the present invention provides a jig production line system, including a carrier conveying return line and a stop mechanism and a positioning and lifting mechanism arranged on the carrier conveying return line, and also includes a welding manipulator and a control system;

[0008] The carrier conveying return line comprises a two-channel double-layer conveying line, which comprises two parallel tracks and rollers arranged at both ends of the tracks, and a conveyor belt is arranged on the rollers. A return elevator is arranged at one end of the carrier conveying return line, and a loading and unloading workbench is arranged at the other end of the carrier conveying return line;

[0009] The stop mechanism includes a cylinder I arranged below the mounting plate I, and a stop member and a fixing seat connected to the cylinder I, a buffer roller is arranged at the head of the stop member, one end of the bottom of the stop member is hinged on the pivot of the fixing seat, and the other end of the bottom of the stop member is hinged to the piston shaft of the cylinder I;

[0010] The positioning and lifting mechanism includes a cylinder II arranged below the mounting plate II, and a movable plate arranged above the mounting plate II and fixedly connected to the piston shaft of the cylinder II, and a positioning column I for positioning the carrier and a cushion block for supporting the carrier are arranged above the movable plate;

[0011] The welding robot is arranged on one side of the carrier conveying reflow line and is a six-axis robot. A soldering machine is arranged at the end of the welding robot, and the soldering machine is a laser soldering machine.

[0012] The control system is electrically connected to the carrier conveying return line, the stopping mechanism, the positioning and lifting mechanism and the welding manipulator, and works in coordination.

[0013] Preferably, a sensor is provided on the mounting plate 1 for detecting the displacement of the stop member.

[0014] Preferably, a plurality of guide column sleeves are arranged at the upper edge of the mounting plate II, and guide columns are arranged below the movable plate corresponding to the guide column sleeves.

[0015] Preferably, the carrier comprises a load plate, a carrier plate, a fixing clamp and an upper cover;

[0016] The front and rear ends of the load plate are provided with anti-collision rubber, and a positioning hole I and a positioning column II are provided on the load plate, and the positioning hole I corresponds to the positioning column I on the movable plate;

[0017] The carrier plate is provided with quick-release handles at both ends, and a positioning hole II is provided on the carrier plate, and the positioning hole II corresponds to the positioning column II on the load plate;

[0018] The fixing clamp can be arranged on the carrier plate, the jig to be welded is fixed on the fixing clamp, the upper cover is covered on the carrier plate, and a welding opening is provided on the upper cover.

[0019] Preferably, the return elevator comprises a box body and a guide rail vertically arranged on a side panel inside the box body, and the conveying unit is driven by a driving unit to slide up and down along the guide rail.

[0020] The beneficial effects of the present invention are:

[0021] 1. The structure is simple and universal, with high stability, high precision, low cost, high practicality, reducing labor intensity and improving production capacity.

[0022] 2. Use the welding manipulator and the dual-channel conveying return line to switch back and forth to achieve uninterrupted welding. The welding positioning platform is separated to prevent resonance. The six-axis manipulator laser calibrates the precise positioning to ensure accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of a fixture production line system involved in an embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of a carrier conveying return line involved in an embodiment of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the conveyor line B involved in the embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the stop mechanism involved in the embodiment of the present invention.

[0027] Figure 5 It is a partial side view of the stopping mechanism involved in the embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning and lifting mechanism involved in the embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of the exploded structure of the carrier involved in the embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of the assembly relationship between the carrier and the stopping mechanism involved in the embodiment of the present invention.

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the return lift involved in the embodiment of the present invention.

[0032] Fig.10 It is a three-dimensional structural schematic diagram of a welding robot and a control system involved in an embodiment of the present invention.

[0033] Figure Number and Name:

[0034] 11. Carrier conveying return line; 111. Bracket; 112. Track; 113. Roller; 1131. Transmission shaft; 114. Motor; 115. Pulley; 116. Conveyor belt; 117. Return elevator; 1171. Box; 1172. Guide rail; 1173. Conveying unit; 1174. Driving unit; 118. Loading and unloading workbench;

[0035] 12. Stop mechanism; 121. Mounting plate I; 122. Cylinder I; 123. Stop member; 123a. One end of the bottom of the stop member; 123b. The other end of the bottom of the stop member; 1231. Buffer roller; 124. Fixed seat; 124a pivot; 125. Sensor;

[0036] 13. Positioning jacking mechanism; 131. Mounting plate II; 132. Cylinder II; 133. Guide column sleeve; 134. Positioning side plate; 135. Movable plate; 1351. Guide column; 1352. Positioning column I; 1353. Cushion block;

[0037] 14. Carrier; 141. Load plate; 1411. Anti-collision rubber; 1412. Positioning hole I; 1413. Positioning column II; 142. Carrier plate; 1421. Quick release handle; 1422. Positioning hole II; 143. Fixing clip; 144. Upper cover; 1441. Welding port;

[0038] 15. Welding manipulator;

[0039] 16. Control system;

[0040] A, conveyor line; A', conveyor line; B, conveyor line; B', conveyor line.

[0041] 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

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0043] Jigs are crucial for products on the production line. For 3C products, the jigs of their components are mostly special-shaped structures. When welding the jigs, inaccurate positioning will affect the quality of the jigs, resulting in a high NG rate and material waste.

[0044] In view of this, the present application discloses a jig production line system to solve the problem of inaccurate positioning in the jig welding production process in the related art, resulting in a high NG rate. At the same time, it realizes synchronous operation of loading and unloading, reduces the transmission time of the transmission belt, further improves production efficiency, reduces labor stress, and optimizes occupied space.

[0045] The embodiments disclosed in the present application are described in detail below with reference to the accompanying drawings.

[0046] In the examples of this application, see Figure 1 A fixture production line system is provided, including a carrier conveying return line 11, a stopping mechanism 12 arranged on the carrier conveying return line 11, and a positioning and lifting mechanism 13, the stopping mechanism 12 can stop and position the carrier 14, the positioning and lifting mechanism 13 can position and lift the carrier 14, and also includes a welding robot 15 for welding the fixture on the carrier 14, and a control system 16 for controlling the coordinated work of the above mechanisms.

[0047] The carrier conveying return line 11 includes a two-channel double-layer conveying line, such as Figure 2 As shown, it includes two channel conveyor lines A and B, each channel conveyor line includes upper and lower layers A and A' and B and B', conveyor lines A and B on the bracket 111 are arranged horizontally and in parallel, and conveyor lines A' and conveyor lines B' are arranged horizontally below conveyor lines A and conveyor lines B, forming a two-channel double-layer conveyor return line. The bracket 111 has four legs, and leveling knobs and universal wheels are arranged on the legs to facilitate mobile assembly and adjust the levelness.

[0048] The structures of the four conveyor lines A, A', B and B' are roughly the same. Take one of the conveyor lines B as an example. Figure 3 As shown, the conveyor line includes two parallel tracks 112, rollers 113 are provided at the front and rear ends of the track 112, a motor 114 is provided at one end of the track 112, and a pulley 115 is provided on the output shaft of the motor 114. The rollers 113 are driven to rotate through the belt transmission, thereby driving the conveyor belt 116 on the rollers 113 to transmit. The two rollers 113 at one end of the track 112 are connected to a transmission shaft 1131, so that the two rollers 113 rotate coaxially, ensuring that the conveyor belts 116 on the two tracks 112 are driven synchronously.

[0049] A stopping mechanism 12 is provided on the tracks 112 on the conveying lines of the two channels A and B, for stopping and positioning the carrier 14 on the conveyor belt 116 .

[0050] The stop mechanism 12 is described below. Figure 4 and Figure 5As shown, the stopping mechanism 12 includes a cylinder 1122 arranged below the mounting plate 1121, and a stopping member 123 and a fixing seat 124 connected to the cylinder 1122. A sensor 125 (such as a photoelectric sensor) is also arranged on the mounting plate 1121 for detecting the displacement of the stopping member 123. A buffer roller 1231 is arranged at the head of the stopping member 123. One end 123a of the bottom of the stopping member 123 is hinged on the pivot 124a of the fixing seat 124. The other end 123b of the bottom of the stopping member 123 is hinged to the piston shaft of the cylinder 1122. The fixing seat 124 is arranged at the end of the cylinder 1122. When the cylinder 1122 is working, the piston in the cylinder 1122 performs a linear reciprocating motion, driving the stopping member 123 to swing back and forth with the pivot 124a as the center. The positioning distance gap can be adjusted in the horizontal direction and the height can be adjusted in the vertical direction, as shown in FIG. Figure 4 As shown in S. It can be seen that when the piston of the cylinder 1 122 moves, the buffer roller 1231 can roll to absorb the displacement deviation in the vertical direction, and can also stop the carrier 14.

[0051] A positioning lifting mechanism 13 is also provided on the track 112 of the conveying lines of the two channels A and B near the stop mechanism 12. Figure 6 , a cylinder II 132 is arranged at the center position below the mounting plate II 131, a plurality of guide column sleeves 133 are arranged at the edge position above the mounting plate II 131, a positioning side plate 134 is installed on the mounting plate II 131, and the positioning side plate 134 is fixed on the track 112; the piston shaft of the cylinder II 132 passes through the mounting plate II 131 and is fixedly connected with the movable plate 135, and a guide column 1351 is arranged below the movable plate 135 corresponding to the guide column sleeve 133. When the cylinder II 132 is working, it drives the piston shaft to move in the vertical direction, so that the movable plate 135 is displaced and adjusted in the vertical direction, and the guide column 1351 prevents the movable plate 135 from shaking, thereby improving the displacement movement accuracy of the movable plate 135.

[0052] Furthermore, a positioning column 1 1352 for positioning the carrier 14 and a cushion block 1353 for supporting the carrier 14 are arranged above the movable plate 135.

[0053] See also Figure 7 and Figure 8 The carrier 14 includes a load plate 141, a carrier plate 142, a fixing clamp 143 and an upper cover 144. Anti-collision rubber 1411 is provided at the front and rear ends of the load plate 141. The load plate 141 moves with the conveyor belt 116, and the buffer roller 1231 of the stop member 123 rises and contacts with the anti-collision rubber 1411 to prevent the load plate 141 from hard contact. A positioning hole I 1412 and a positioning column II 1413 are provided on the load plate 141, and the positioning hole I 1412 corresponds to the positioning column I 1352 on the movable plate 135.

[0054] Quick-release handles 1421 are disposed at both ends of the carrier plate 142 . A positioning hole II 1422 is defined on the carrier plate 142 . The positioning hole II 1422 corresponds to the positioning column II 1413 on the load plate 141 .

[0055] The fixing clip 143 can be set on the carrier plate 142. Different fixing clips can be switched according to different jigs. The jig to be welded is fixed on the fixing clip 143, and the upper cover 144 is covered on the carrier plate 142. The upper cover 144 has a welding port 1441 corresponding to the jig. The upper cover 144 protects the jig except the welding port 1441 to avoid damage to the jig during the welding process.

[0056] Please combine Figure 1 and Fig. 9 A return lift 117 is provided at one end of the carrier conveying return line 11, and a loading and unloading workbench 118 is provided at the other end.

[0057] The reflow elevator 117 includes a box 1171, and a leveling knob and universal wheels are provided at the bottom of the box to facilitate mobile assembly and adjustment of the horizontality. A guide rail 1172 is vertically provided on the inner side panel of the box 1171. The conveying unit 1173 is driven by a driving unit 1174 (such as a motor or a cylinder) to slide up and down along the guide rail 1172. The conveying unit 1173 has a structure similar to that of the conveying line B, ensuring that the carrier 14 can be transmitted on the conveying unit 1173. For example, the carrier 14 is transmitted from the conveying line B' to the conveying unit 1173, and the conveying unit 1173 slides upward along the guide rail 1172 until it is flush with the conveying line B. When the carrier 14 is transmitted to the conveying line B, the reflow conveying of the material (jig) is realized, and the floor space is reduced; the carrier conveying reflow line 11 includes two two-channel conveying lines, which realizes multiple tasks at the same time and improves welding efficiency.

[0058] The return lift 117 can realize loading and unloading at one end, such as Figure 1 The loading and unloading workbench 118 shown in the figure realizes the synchronous operation of loading and unloading, reduces the need for conveyor belts, and thus saves costs and space.

[0059] The fixture production line system also includes a welding robot 15 arranged on one side of the carrier conveying reflow line 11. The welding robot 15 is a six-axis robot, and its end is a soldering machine. The soldering machine is a laser soldering machine, including pulsed light laser, continuous light laser, quasi-continuous fiber laser and direct semiconductor laser. Quasi-continuous fiber laser is preferred, such as the RFL-QCW150 / 1500 model produced by Raycus Fiber.

[0060] The control system 16 is electrically connected to the carrier conveying return line 11, the stopping mechanism 12, the positioning and lifting mechanism 13, and the welding robot 15 to control the coordinated operation of the above mechanisms.

[0061] The laser soldering machine is a laser soldering machine that uses the high energy density of the laser to achieve rapid heating of a local or tiny area. The size of the light spot is adjusted to irradiate the designated area. Through thermal radiation, the tin in this area is heated, causing it to melt quickly and form a solder joint after cooling.

[0062] The six-axis manipulator has high precision and stability, which can ensure the consistency of welding quality. Through the monitoring and adjustment of the control system 16, welding defects can be discovered and repaired in time to ensure that the welding quality meets the requirements.

[0063] Working principle: The operator loads and unloads materials on the loading and unloading workbench 118, fixes the welding jig on the carrier 14, and the control system 16 controls the carrier conveying return line 11 to work. The carrier 14 moves to above the positioning and lifting mechanism 13. The sensor detects the carrier 14, and the control system 16 controls the stopping mechanism 12 to work. The stopping member 123 of the stopping mechanism 12 stops the carrier 14, and the buffer roller 1231 at the head of the stopping member 123 contacts the load plate 141 of the carrier 14. The horizontal gap of the stopping member 123 is adjusted so that the positioning hole I 1412 of the load plate 141 is aligned with the positioning column I on the movable plate 135. 1352 corresponds, the control system 16 controls the positioning and lifting mechanism 13 to work, the movable plate 135 rises, driving the carrier 14 to rise to the set position, the stop mechanism 12 resets, and the welding manipulator 15 starts to weld the welding fixture. After the welding is completed, the movable plate 135 drops, and the carrier 14 returns to the carrier conveying return line 11. Through the return lifter 117, the carrier 14 flows back to the loading and unloading workbench 118 through the conveying line. The welding manipulator 15 switches back and forth with the dual-channel conveying return line to achieve uninterrupted welding. The welding positioning platform is separated to prevent resonance. The six-axis manipulator laser calibrates the precise positioning to ensure accuracy.

Claims

1. The fixture production line system is characterized by: It comprises a carrier conveying return line (11), a stop mechanism (12) and a positioning and lifting mechanism (13) arranged on the carrier conveying return line (11), and also comprises a welding manipulator (15) and a control system (16); The carrier conveying return line (11) comprises a two-channel double-layer conveying line, the conveying line comprises two parallel tracks (112) and rollers (113) arranged at both ends of the tracks (112), a conveyor belt (116) is arranged on the rollers (113), a return elevator (117) is arranged at one end of the carrier conveying return line (11), and a loading and unloading workbench (118) is arranged at the other end of the carrier conveying return line (11); The stopping mechanism (12) comprises a cylinder I (122) arranged below a mounting plate I (121), and a stopping member (123) and a fixing seat (124) connected to the cylinder I (122); a buffer roller (1231) is arranged at the head of the stopping member (123); one end of the bottom of the stopping member (123) is hinged to a pivot (124a) of the fixing seat (124); and the other end of the bottom of the stopping member (123) is hinged to the piston shaft of the cylinder I (122); The positioning and lifting mechanism (13) comprises a cylinder II (132) arranged below the mounting plate II (131), and a movable plate (135) arranged above the mounting plate II (131) and fixedly connected to the piston shaft of the cylinder II (132); a positioning column I (1352) for positioning the carrier (14) and a cushion block (1353) for supporting the carrier (14) are arranged above the movable plate (135); The welding robot (15) is arranged on one side of the carrier conveying reflow line (11) and is a six-axis robot. A soldering machine is provided at the end of the welding robot (15), and the soldering machine is a laser soldering machine. The control system (16) is electrically connected to the carrier conveying return line (11), the stopping mechanism (12), the positioning and lifting mechanism (13) and the welding robot (15), and works in coordination.

2. The fixture production line system according to claim 1, characterized in that: A sensor (125) is provided on the mounting plate I (121) for detecting the displacement of the stop member (123).

3. The fixture production line system according to claim 2, characterized in that: A plurality of guide column sleeves (133) are arranged at the upper edge of the mounting plate II (131), and guide columns (1351) are arranged below the movable plate (135) corresponding to the guide column sleeves (133).

4. The fixture production line system according to claim 3, characterized in that: The carrier (14) comprises a load plate (141), a carrier plate (142), a fixing clamp (143) and an upper cover (144); Anti-collision rubber (1411) is provided at the front and rear ends of the load plate (141), and a positioning hole I (1412) and a positioning column II (1413) are provided on the load plate (141), and the positioning hole I (1412) corresponds to the positioning column I (1352) on the movable plate (135); The carrier plate (142) is provided with quick-release handles (1421) at both ends, and a positioning hole II (1422) is provided on the carrier plate (142), and the positioning hole II (1422) corresponds to the positioning column II (1413) on the load plate (141); The fixing clamp (143) can be arranged on the carrier plate (142), the jig to be welded is fixed on the fixing clamp (143), the upper cover (144) covers the carrier plate (142), and a welding port (1441) is provided on the upper cover (144).

5. The fixture production line system according to claim 4, characterized in that: The return lift (117) comprises a box body (1171) and a guide rail (1172) vertically provided on a side panel inside the box body (1171); the conveying unit (1173) is driven by a driving unit (1174) to slide up and down along the guide rail (1172).

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