PTC Automatic Assembly Line

Abstract

The present invention relates to the technical field of fin processing, and discloses a PTC automatic assembly line, which includes a processing device, a handling device, and a carrier; the processing device includes at least one U-shaped sheet processing device, at least one solder sheet processing device, at least one fin processing device, and at least one flat sheet processing device. Each processing device is horizontally arranged, the feed ports of each processing device are located on the same side, and the discharge ports of each processing device are located on the other side. The carrier is arranged on one side of the discharge port of each processing device, and the carrier is movably arranged; the handling device has a plurality corresponding to each processing device. Through the setting of the above technical solution, with this structural layout, the present invention can freely set multiple workpieces for simultaneous processing, and has better assembly efficiency compared with manual assembly and quasi-manual mechanical assembly. The present invention can independently complete the processing and assembly of workpieces, so that the processing and assembly of workpieces are within a controllable range, with high processing accuracy and higher yield rate.

Description

Technical Field

[0001] The present invention relates to the technical field of fin processing, and particularly to a PTC automatic assembly line. Background Art

[0002] Most of the existing PTC assemblies are completed manually, with low assembly efficiency, large errors in the assembled products, and unstable quality. In response to this problem, some enterprises have jointly carried out research and development on PTC automatic assembly machines with schools before. Some of them ended in failure, and for the other part, since the PTC automatic assembly machine simulates manual operations and cannot assemble multiple workpieces simultaneously, the efficiency is low. Summary of the Invention

[0003] The purpose of the present invention is to provide a PTC automatic assembly line, which can solve the problems existing in the prior art.

[0004] To achieve the above purpose, the present invention provides a PTC automatic assembly line, including a processing device, a handling device, and a carrier; the processing device includes at least one U-shaped sheet processing device, at least one solder sheet processing device, at least one fin processing device, and at least one flat sheet processing device. Each processing device is horizontally arranged, the feed ports of each processing device are located on the same side, and the discharge ports of each processing device are located on the other side. The carrier is arranged on one side of the discharge port of each processing device, and the carrier is movably arranged; there are multiple handling devices corresponding to each processing device, and each handling device is used to obtain each workpiece and transport the workpiece to the carrier in accordance with the installation sequence of each workpiece to form a product.

[0005] Through the setting of the above technical solutions, with this structural layout, the present invention can freely set multiple workpieces for simultaneous processing, and has better assembly efficiency compared with manual assembly and humanoid mechanical assembly. The present invention can independently complete the processing and assembly of workpieces, making the processing and assembly of workpieces within a controllable range, with high processing accuracy and higher qualified product rate.

[0006] Further, each processing device includes at least one loading platform for carrying raw materials or workpieces processed from raw materials, and a displacement driving unit fixedly connected to the loading platform and capable of moving the workpiece to the area for corresponding handling devices to carry.

[0007] Further, the U-shaped sheet processing device includes a U-shaped sheet processing die and a first platform arranged oppositely up and down.

[0008] Among them, the upper U-shaped sheet processing die includes a first cutter and two limiting protrusions. The lower U-shaped sheet processing die includes two bending bumps. The first platform is arranged between two adjacent material loading platforms. A cutter through-hole that can pass through the first cutter and bump through-holes that can pass through the two bending bumps respectively are arranged on the first platform. The two bending bumps are respectively located inside the two limiting protrusions and have a gap not less than the thickness of the U-shaped sheet between them and the two limiting protrusions. The U-shaped sheet processing die is driven by a power source.

[0009] Further, the fin processing device includes: a filling unit for filling the gap on the side of the material loading platform for carrying fins during the feeding process; a cutter unit for punching the fins when the filling unit exits the gap on the side of the material loading platform; a separating unit for increasing the side gap of the material loading platform to separate the fins after the cutter unit completes the punching action.

[0010] Further, the separating unit includes a sliding module arranged between the material loading platform and the displacement driving unit and used for enabling the material loading platform to slide on the displacement driving unit, a linkage chain with one end fixedly connected to the material loading platform and the other end slidably connected to the adjacent material loading platform or the feeding device, and a power source fixedly connected to the material loading platform near the processing discharge port end. One end of the linkage chain is fixedly connected and the other end is slidably connected.

[0011] Further, the handling device includes: at least two picking units for picking up the workpiece; at least two arms for installing the picking units; a biaxial slide for installing the arms and driving the arms to move in two axial directions.

[0012] One of the arms is fixedly connected, and the other arms are slidably connected to the biaxial slide. The adjacent two arms are hinged by four link rods that can form a rhombus structure. Two link rods are hinged on the same arm, and one of the slidable arms is driven by a power source to move linearly.

[0013] Further, the handling device includes a U-shaped sheet handling device, a solder sheet handling device, a fin handling device, and a flat sheet handling device. The picking unit of the fin handling device includes 1-4 jaws that can move in a plane.

[0014] Further, the carrier includes: a carrier frame; an isolation frame arranged inside the carrier frame, having two pairs of oppositely arranged frames, one of the frames is fixedly connected to the carrier frame, and the other frame is driven by a power source. A stepped limiting structure for restricting the four corners of the product formed by each workpiece combination is arranged on the frame; a bundling strip arranged inside the isolation frame, with an overall U-shaped structure. The bundling strip is arranged at intervals and staggered with the stepped limiting structure for accommodating a row of multiple products.

[0015] Alternatively, the carrier includes: a carrier frame; an isolation frame, which is arranged in the carrier frame and has two pairs of oppositely arranged frames, and the frames are provided with step limiting structures for limiting the four corners of the product composed of each workpiece; a bundling strip, which is arranged in the isolation frame and is a U-shaped structure as a whole, and the bundling strips and the step limiting structures are staggered and arranged at intervals to accommodate a row of multiple products; the bundling strips and the step limiting structures have multiple, staggered and spaced arrangements, and there are gaps between them, and the gaps between the bundling strips and the step limiting structures are provided with a push rod that can move up and down and can enter or exit the gap; the carrier can be movably arranged in one direction in a movable bearing frame, and the movable bearing frame is driven by a power source to move on one side of the discharge port of each processing device.

[0016] Furthermore, the PTC automatic assembly line also includes a carrier replacement device, which is arranged on one side of one end of the carrier moving path; the carrier replacement device includes a spare carrier, two fixed carrying frames, and a carrier drive unit; the spare carrier is detachably arranged in one of the fixed carrying frames, and the fixed carrying frame is fixedly arranged; the carrier is detachably arranged in a mobile carrying frame, and the mobile carrying frame is movably arranged following the carrier; the carrier drive unit is used to replace the spare carrier and the carrier in the fixed carrying frame and the mobile carrying frame.

[0017] Furthermore, the feed inlet of each processing device is respectively provided with a feeding device for conveying the unprocessed raw materials to the processing area of ​​the processing device.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A top view of

[0021] Figure 3 It is a schematic diagram of the product structure;

[0022] Figure 4 is a schematic diagram of the structure of the shift unit;

[0023] Figure 5 It is a schematic diagram of the overall structure including a U-shaped sheet processing device, its power source, its transmission structure, a feeding device, and a shifting unit;

[0024] Figure 6 It is a structural schematic diagram of a U-shaped sheet processing device;

[0025] Figure 7 for Figure 6Enlarged view of part A;

[0026] Figure 8 Schematic diagram of the overall structure of the solder tab processing device, the feeding device, and the shifting unit;

[0027] Figure 9 Schematic diagram of the structure of the solder tab processing device;

[0028] Figure 10 Schematic diagram of the overall structure of the fin processing device, the feeding device, and the shifting unit;

[0029] Figure 11 Schematic diagram of the structure of the fin processing device;

[0030] Figure 12 Schematic diagram of the overall structure of the flat sheet processing device, its power source, its transmission structure, the feeding device, and the shifting unit;

[0031] Figure 13 Schematic diagram of the structure of the flat sheet processing device;

[0032] Figure 14 Schematic diagram of the structure of the third tool and the second platform;

[0033] Figure 15 Schematic diagram of the structure of the handling device;

[0034] Figure 16 Schematic diagram of the structure of the handling device from another perspective;

[0035] Figure 17 Schematic diagram of the structure of the carrier, its power source, and its transmission structure;

[0036] Figure 18 Schematic diagram of the structure of the carrier and the movable carrying frame;

[0037] Figure 19 Schematic diagram of the structure of the carrier;

[0038] Figure 20 For Figure 19 Exploded view;

[0039] Figure 21 Schematic diagram of the structure of the carrier replacement device and the discharging device;

[0040] Figure 22 For Figure 21 Exploded view.

[0041] Explanation of reference numerals

[0042] U-shaped sheet processing device 11, U-shaped sheet 19, U-shaped sheet processing die 111, first cutter 112, limit protrusion 113, bending bump 114, cutter through-hole 115, bump through-hole 116, second moving seat 117, third moving seat 118, first platform 119, first moving seat 120, solder tab processing device 21, solder tab 29, second cutter 211, first pressing plate 212, first groove 213, fourth moving seat 214, fin processing device 31, fin 39, filling unit 311, cutter unit 312, separating unit 313, filling block 3111, second cutter 3121, second pressing plate 3122, sliding module 3131, linkage chain 3132, flat sheet processing device 41, flat sheet 49; fifth moving seat 411, third cutter 412, sixth moving seat 413, pressing block 414, second platform 415, pressing plate 416, trough 417, supporting part 418, carrier 5, carrier frame 51; isolation frame 52, frame body 521, stepped limit structure 522, bundling strip 53, ejector rod 54, third power source 55, fourth power source 56, positioning groove 57, product 59, first power source 541, second power source 542, U-shaped sheet handling device 61, solder tab handling device 62, fin handling device 63, flat sheet handling device 64, picking unit 611, support arm 612, double-axis slide 613, jaw 614, carrier replacement device 7, spare carrier 71, fixed bearing frame 72, movable bearing frame 73, male part 74, first bottom plate 75, second bottom plate 76, long groove 77, double-head bracket 78, female part 79, shifting unit 8, loading platform 81, shifting drive unit 82, top plate 83, conveying wheel 84, first fixing part 821, first displacement part 822, connecting column 823. Detailed implementation manners

[0043] The following provides a detailed description of the specific implementation manners of the present invention. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0044] In the present invention, unless otherwise stated, the orientation words such as "upper, lower" generally refer to the orientation in the assembled and used state. "Inner, outer" refer to the inner and outer of the contour of each component itself.

[0045] The present invention provides a PTC automatic assembly line, as Figure 1 - Figure 2As shown in the figure, it includes a processing device, a handling device, and a carrier 5; the processing device includes at least one U-shaped sheet processing device 11, at least one solder sheet processing device 21, at least one fin processing device 31, and at least one flat sheet processing device 41. Each processing device is horizontally arranged, the feeding ports of each processing device are located on the same side, and the discharging ports of each processing device are located on the other side. The carrier 5 is arranged on one side of the discharging ports of each processing device, and the carrier 5 is movably arranged; there are multiple handling devices corresponding to each processing device, and each handling device is used to obtain each workpiece and transport the workpieces to the carrier 5 according to the installation sequence of each workpiece to form a product 59.

[0046] Through the setting of the above technical solution, with this structural layout, the present invention can freely set multiple workpieces for simultaneous processing, and has better assembly efficiency compared with manual assembly and quasi-manual mechanical assembly. The present invention can independently complete the processing and assembly of workpieces, making the processing and assembly of workpieces within a controllable range, with high processing accuracy and a higher qualified product rate.

[0047] Processing object

[0048] The raw materials mentioned in this article are objects that are transported from the feeding device and have not been processed by the processing device. The "workpieces" mentioned in this article are processed from the raw materials and are one of the U-shaped sheet 19, solder sheet 29, fin 39, and flat sheet 49. The "product" 59 mentioned in this article is a unit after the U-shaped sheet 19, solder sheet 29, fin 39, and flat sheet 49 are assembled. Among them, as Figure 3 shown, a product 59 is successively a U-shaped sheet 19, a solder sheet 29, a fin 39, a solder sheet 29, and a flat sheet 49. After the product 59 is assembled, it is sent to a kiln for heating to form a PTC, so that the solder sheet 29 respectively fixedly connects the U-shaped sheet 19 and the fin 39, and the fin 39 and the flat sheet 49. Of course, the processing objects of the present invention are not limited to the above-mentioned workpieces and products 59. Based on individual workpieces, new products formed by combining existing workpieces, and products formed by simply replacing, adding, or deleting processing steps, all fall within the protection scope of the present invention.

[0049] Shifting unit 8

[0050] Each processing device includes a shifting unit 8. The function of the shifting unit 8 is to serve as a loading platform when the workpiece is being processed and move the workpiece from the processing area to the handling area.

[0051] As Figure 4 shown, the shifting unit 8 includes a loading platform 81 for loading raw materials or workpieces and a shifting drive unit 82 fixedly connected to the loading platform and capable of moving the workpiece to an area where the corresponding handling device can handle it.

[0052] Generally, the side of the material loading platform 81 is the processing area, and the processing method is punching. The workpiece is punched by the processing device so that the workpiece is disconnected from the raw material sent by the feeding device, and the processed workpiece is supported by the material loading platform 81. Therefore, when the number of material loading platforms is set to two or more, there is a gap between the material loading platforms, which is convenient for punching the workpiece. The number of the material loading platforms 81 is the same as the number of workpieces to be processed simultaneously by one processing device. Grooves corresponding to the workpieces are provided on the material loading platform 81 to limit the movement of the workpieces in the width direction.

[0053] Further, the displacement driving unit 82 includes a power source, a first fixing part 821, and a first displacement part 822. The first fixing part 821 is fixedly arranged. The fixed end of the power source is fixedly connected to the first fixing part 821, and the moving end of the power source is fixedly connected to the first displacement part 822. The material loading platform 81 is fixedly arranged on the first displacement part 822. The first displacement part 822 is driven by the power source to move away from or close to the first fixing part 821 to change the position of the material loading platform 81.

[0054] More specifically, the first fixing part 821 is fixedly connected to the machine frame through a connecting column 823. The connecting column 823 passes through the first displacement part 822 to play a guiding role and increase the stability of the first displacement part 822 during displacement.

[0055] The specific embodiments of each processing device are as follows:

[0056] U-shaped sheet processing device 11

[0057] The U-shaped sheet processing device 11 is used for bending and cutting the raw material to form a U-shaped sheet 19, as shown in the overall view Figure 5 as shown.

[0058] As Figure 6 , 7 shown, the U-shaped sheet processing device 11 includes a U-shaped sheet processing die 111 and a first platform 119 which are oppositely arranged up and down;

[0059] Among them, the upper U-shaped sheet processing die 111 includes a first cutter 112 and two limiting protrusions 113. The lower U-shaped sheet processing die 111 includes two bending bumps 114. The first platform 119 is arranged on one side of the loading platform 81 and is flush with the loading platform 81. The two together form a processing platform for the U-shaped sheet. A cutter through-hole 115 that can pass the first cutter 112 and a bump through-hole 116 that can pass the two bending bumps 114 respectively are arranged on the first platform 119. The two bending bumps 114 are respectively located inside the two limiting protrusions 113, and there is a gap not less than the thickness of the U-shaped sheet 19 between them and the two limiting protrusions 113. The U-shaped sheet processing die 111 is driven by a power source. In this technical solution, the first cutter 112 and the two limiting protrusions 113 can move downward simultaneously. After the limiting protrusions 113 abut against the first platform 119, the first cutter 112 can continue to move downward to cut the raw material and enter the cutter through-hole 115. The bending bumps 114 can move upward, pass through the bump through-hole 116, and together with the limiting protrusions 113, complete the raw material to form the bending structure of the U-shaped sheet 19.

[0060] Further, the upper U-shaped sheet processing die 111 includes a first moving seat 120 and a second moving seat 117. The first moving seat 120 is driven by a power source. The second moving seat 117 is connected to the first moving seat 120 by a spring. In the state where no processing action is performed, there is a gap between the second moving seat 117 and the first moving seat 120. The first cutter 112 passes through the second moving seat 117 and is fixedly connected to the first moving seat 120. The limiting protrusion 113 is fixedly connected to the second moving seat 117. Both the first cutter 112 and the limiting protrusion 113 face the first platform 119. The lower U-shaped sheet processing die 111 includes a third moving seat 118. The bending bump 114 is fixedly connected to the third moving seat 118. The bending bump 114 faces the first platform 119. The first platform 119 can be fixedly arranged or can be connected to the third moving seat 118 by a spring.

[0061] More specifically, the upper and lower U-shaped sheet processing dies 111 are respectively driven by independent power sources and transmission mechanisms. When there are multiple U-shaped sheet processing devices 11, preferably, multiple upper U-shaped sheet processing dies 111 can be independently and jointly driven by one power source, and multiple lower U-shaped sheet processing dies 111 can be independently and jointly driven by one power source. More preferably, the transmission mechanism can be a cam or an eccentric wheel cooperating with a connecting rod to drive the U-shaped sheet processing die 111 to move up and down. Each cam or eccentric wheel is fixedly connected to form a camshaft or an eccentric wheel shaft and is driven by one power source. Of course, each U-shaped sheet processing die 111 can also be driven by a separate power source and transmission structure.

[0062] Solder tab processing device 21

[0063] The solder tab processing device 21 is used to punch raw materials to form solder tabs 29.

[0064] As Figure 8 , 9 shown, the solder tab processing device 21 includes a second cutter 211, a first pressing plate 212, and a first groove 213 for receiving raw materials or solder tabs 29; the two first grooves 213 are arranged in parallel on the loading platform 81 to facilitate the simultaneous processing of two solder tabs 29; the first pressing plate 212 is fixedly arranged, and the first pressing plate 212 is located on the loading platform 81 and is used to press the raw materials to ensure the flatness of the solder tabs during punching; the second cutter 211 faces the side of the loading platform 81 and can move up and down under the action of a power source.

[0065] As Figure 8 , 9 shown, the second cutter 211 is fixedly connected to the fourth moving seat 214; the fourth moving seat 214 is fixedly connected to the power source. When multiple second cutters 211 process multiple workpieces simultaneously, multiple power sources can be used to drive the fourth moving seats 214 respectively, or one power source can drive multiple fourth moving seats 214.

[0066] It should be noted that two solder tabs 29 are required to process one product 59. Therefore, the width of the second cutter 211 is greater than the width of two solder tabs 29, and the loading platform 81 bears 2 solder tabs 29 in the width direction. Correspondingly, there are 2 sets of feeding devices, and the 2 sets of feeding devices are arranged in the width direction; correspondingly, the picking units 611 of the handling device are arranged in two columns in the width direction, and since the placement order of the two solder tabs 29 in one product 59 is different, the two columns of picking units 611 are controlled separately for picking.

[0067] The fin processing device 31

[0068] The fin processing device 31 is used to punch raw materials to form fins 39.

[0069] As Figure 10 , 11 shown, the fin processing device 31 includes: a filling unit 311, which fills the gap on the side of the loading platform 81 for carrying fins 39 during the feeding process; a cutter unit 312, which punches the fins 39 when the filling unit 311 exits the side gap of the loading platform 81; a separating unit 313, which increases the side gap of the loading platform 81 to separate the fins 39 after the cutter unit 312 completes the punching action.

[0070] Among them, the filling unit 311 includes a filling block 3111; the filling block 3111 is driven by a power source to enter or exit the feeding path of the fin 39, and the upper surface of the filling unit 311 is flush with the second groove of the material-carrying platform 81 for limiting the fin 39.

[0071] Among them, the cutting tool unit 312 includes a second cutting tool 3121 and a second pressing plate 3122. The second cutting tool 3121 is driven by a power source to punch the raw material upward, and the second pressing plate 3122 is fixedly arranged above the material-carrying platform 81 and is used to support the raw material from above when punching the raw material.

[0072] Among them, the separating unit 313 includes a sliding module 3131 arranged between the material-carrying platform 81 and the displacement driving unit 82 and used to make the material-carrying platform 81 slide on the displacement driving unit 82, a linkage chain 3132 with one end fixedly connected to the material-carrying platform 81 and the other end slidably connected to an adjacent material-carrying platform 81 or a feeding device, and a power source fixedly connected to the material-carrying platform 81 near the processing discharge port. Further, the sliding module 3131 can be a slide rail and a slider. The slider can slide on the slide rail, the slider is fixedly connected to the material-carrying platform 81, and the slide rail is fixedly connected to the first displacement part 822. The linkage chain 3132 includes chain links and fixing bolts. One end of the chain link is provided with a through hole having the same diameter as the fixing bolt, and the other end is provided with a chute having a length greater than the diameter of the fixing bolt. The linkage chain 3132 is fixedly connected to the material-carrying platform 81 through the fixing bolt passing through the through hole, and the other end is slidably connected to an adjacent material-carrying platform 81 or a feeding device through the fixing bolt passing through the chute. Through the setting of this technical solution, the power source pulls the material-carrying platform 81 near the processing discharge port, so that the gap on one side of the material-carrying platform 81 increases, separating the fins 39 that have been punched, thus facilitating the clamping of the fins 39 by the handling device.

[0073] Flat sheet processing device 41

[0074] The flat sheet processing device 41 is used to punch the raw material to form a flat sheet 49.

[0075] Such as Figure 12 、 13, as shown in Fig. 14, the flat sheet processing device 41 includes a fifth moving seat 411, a third cutter 412, a sixth moving seat 413, a pressing block 414, a second platform 415, and a pressing plate 416; the fifth moving seat 411 is driven by a power source to reciprocate up and down, the third cutter 412 is fixedly connected to the fifth moving seat 411, the sixth moving seat 413 is connected to the fifth moving seat 411 by a spring, the pressing block 414 is fixedly connected to the sixth moving seat 413, the third cutter 412 passes through the sixth moving seat 413 and the pressing block 414 and can move up and down relative to the two, the second platform 415 is arranged below the pressing block 414, a through groove is arranged in the second platform 415, and a supporting portion 418 adapted to the end fracture shape of the flat sheet 49 is arranged in the through groove, and a groove body 417 adapted to the end fracture shape of the flat sheet 49 is arranged on the third cutter 412; the supporting portion 418 can enter the groove body 417, and the third cutter 412 can enter the through groove of the second platform 415. Through the setting of the above technical solution, when performing the action of punching the flat sheet 49, the fifth moving seat 411 moves downward, driving the sixth moving seat 413 to move downward, the pressing plate 416 presses the raw material, at this time the spring is compressed, and the third cutter 412 continues to move downward to process the raw material into the flat sheet 49.

[0076] The flat sheet processing device 41 further includes a power source and a transmission mechanism. The settings of the power source and the transmission mechanism of the flat sheet processing device 41 are similar to those of the power source and the transmission mechanism of the U-shaped sheet processing device 11 in each embodiment, and will not be elaborated here.

[0077] Handling device

[0078] The handling device is used to obtain each workpiece from the loading platform 81 and transport it to the carrier 5.

[0079] Such as Figure 15 , 16As shown in the figure, the handling device includes: at least two picking units 611 for picking up the workpieces; at least two support arms 612 for mounting the picking units 611; a biaxial slide 613 for mounting the support arms 612 and driving the support arms 612 to move in two axial directions; one of the support arms 612 is fixedly connected, and the other support arms 612 are slidably connected to the biaxial slide 613. Adjacent support arms 612 are hinged by four connecting rods 615 that can form a rhombus structure. Two connecting rods 615 are hinged on the same support arm 612, and one of the slidable support arms 612 is driven to move linearly by a power source. Preferably, each support arm 612 is mounted on the biaxial slide 613 through a mounting plate. Through the above technical solution, the handling device can pick up and transport workpieces, and through the arrangement of the structure formed by the connecting rods 615, driving one of the support arms 612 can adjust the spacing between all support arms equally, so as to be more accurately placed into the carrier, which is efficient and convenient.

[0080] Specifically, as Figure 1 , 2 shown, the handling device includes a U-shaped sheet handling device 61, a solder sheet handling device 62, a fin handling device 63, and a flat sheet handling device 64.

[0081] Among them, the picking unit 611 of the fin handling device 63 includes 1-4 jaws 614 that can move in a plane. The jaws 614 are driven by a finger cylinder, and the type of the finger cylinder can be selected from 1-4 claws. Preferably, there are 4 jaws 614. Among them, the four jaws 614 are arranged in pairs facing each other, and the movement paths of all the jaws 614 are in a "cross" shape. The cross-section of the jaw 614 is L-shaped to clamp the side and top of the fin 39; Figure 16 The picking unit 611 with 2 jaws 614 is also included. Through the setting of this technical solution, the jaws 614 can at least clamp from both ends in the length direction of the fin 39, appropriately compress the fin 39, reduce its length, and make it easier to put it into the U-shaped sheet.

[0082] Among them, the picking units 611 of the U-shaped sheet handling device 61, the solder sheet handling device 62, and the flat sheet handling device 64 are pneumatic suction nozzles.

[0083] Carrier 5

[0084] The carrier 5 is used to linearly reciprocate on one side of the discharge port of each processing device to carry each workpiece.

[0085] As an embodiment, as Figure 19 , 20As shown in the figure, the vehicle 5 includes: a vehicle frame 51; an isolation frame 52 disposed within the vehicle frame 51 and having two pairs of oppositely disposed frames 521. The frame 521 is longitudinally provided with a stepped limit structure 522 for restricting the four corners of the product 59 formed by combining each workpiece; a bundling strip 53 detachably disposed within the isolation frame 52 and having an overall U-shaped structure. The bundling strip 53 is arranged at intervals and staggered with the stepped limit structure 522 for accommodating a plurality of products 59 in a row. Through the above technical solution, the product 59 placed in the vehicle 5 can be limited, and the number of products 59 accommodated is large. The bundling strip 53 is easily detachable, facilitating the unified removal of a row of products 59.

[0086] As another specific embodiment, as Figure 17 、 18 shown, based on the above technical solution, the bundling strip 53 and the stepped limit structure 522 respectively have a plurality of staggered and spaced arrangements with gaps between each pair. A push rod 54 that can move up and down and can enter or exit the gap is disposed within the gap between the bundling strip 53 and the stepped limit structure 522; the vehicle 5 is disposed within a movable carrying frame 73, and the movable carrying frame 73 is driven by a power source to move on one side of the discharge port of each processing device. During the actual handling process, the push rod 54 or the topmost product 59 on the push rod 54 is at a height close to or equal to the height of one product 59 from the top of the isolation frame 52. After placing a new product 59, the push rod 54 displaces downward by the height of one product 59. Such a setting can ensure the stable position between the workpieces and avoid the displacement between the workpieces when the product slides out of the bundling strip 53.

[0087] Specifically, the push rod 54 is driven by a first power source 541 and a second power source 542 respectively to move in the vertical and horizontal directions to move up and down and be able to enter or exit the gap.

[0088] Specifically, the movement of the vehicle 5 is driven by a third power source 55 to perform a reciprocating linear motion on one side of the discharge port of each processing device. The path that the vehicle 5 can pass through under the drive of the third power source 55 is the "movement path", and the movement path is all on one side of the discharge port of each processing device.

[0089] Vehicle replacement device 7

[0090] The PTC automatic assembly line further includes a vehicle replacement device 7. The vehicle replacement device 7 is used to replace the spare vehicle 71 therein with the vehicle 5 on one side of the discharge port of each processing device, ensuring that while one vehicle outputs the product 59, the other vehicle can carry the product 59 transported from the processing device on the movement path.

[0091] As Figure 18 、21 As shown in Fig. 22, the PTC automatic assembly line further includes a vehicle replacement device 7, which is arranged on one side at one end of the moving path of the vehicle 5; the vehicle replacement device 7 includes a spare vehicle 71, two fixed carrying frames 72, and a vehicle driving unit; the spare vehicle 71 is detachably arranged in the fixed carrying frame 72, and the fixed carrying frame 72 is fixedly arranged; the vehicle 5 is detachably arranged in one of the moving carrying frames 73, and the moving carrying frame 73 is movably arranged following the vehicle 5; the vehicle driving unit is used to replace the spare vehicle 71 and the vehicle 5 between the fixed carrying frame 72 and the moving carrying frame 73. Through the setting of this technical solution, when the carrying capacity of the vehicle 5 reaches a predetermined value, the vehicle 5 and the moving carrying frame 73 are driven to one end of the moving path, so that the moving carrying frame 73 is aligned with the fixed carrying frame 72 without loading the spare vehicle 71. Under the action of the vehicle driving unit, the vehicle 5 is moved into the fixed carrying frame 72, and then the moving carrying frame 73 is aligned with the fixed carrying frame 72 loading the spare vehicle 71. Under the action of the vehicle driving unit, the spare vehicle 71 is pushed into the moving carrying frame 73.

[0092] It should be noted that the vehicle driving unit can drive the vehicle 5 and the spare vehicle 71 to move linearly on the same horizontal plane; the structures of the vehicle 5 and the spare vehicle 71 are the same, and the structures of the moving carrying frame 73 and the fixed carrying frame 72 are the same. Both can accommodate the vehicle 5 and the spare vehicle 71 inside, and there are at least opposite openings for the vehicle 5 and the spare vehicle 71 to pass through.

[0093] In order to be able to move the vehicle 5 and the spare vehicle 71 to realize the replacement of the vehicle 5 and the spare vehicle 71, specifically, as Figure 18 、 21As shown in Fig. 22, the vehicle driving unit includes a male part 74, a first bottom plate 75, a second bottom plate 76, a long slot 77, a short slot, a double-headed bracket 78, and a female part 79. Protrusions of the same shape as the male part 74 are provided at the bottoms of both the vehicle 5 and the spare vehicle 71. The fixed bearing frame 72 is fixedly connected to the first bottom plate 75, and the bottom of the movable bearing frame 73 is fixedly connected to the second bottom plate 76. Two long slots 77 are formed in the first bottom plate 75, and a short slot is formed in the second bottom plate 76. The combined length of the long slot 77 and the short slot is the same as the length of the movement of the vehicle 5 from the fixed bearing frame 72 to the movable bearing frame 73. The male part 74 is embedded in the short slot or the long slot 77. At the bottom of the first bottom plate 75, there is a double-headed bracket 78 driven by a power source to move along the length direction of the long slot 77. Inside the double-headed bracket 78, there are two female parts 79 that can be driven by two power sources respectively to move in opposite directions and can protrude from the double-headed bracket 78. The moving direction of the female part 79 is perpendicular to the moving direction of the double-headed bracket 78. The male part 74 and the female part 79 are nested and matched. For example, through holes are provided on the male part 74, and the female part 79 is embedded into the through holes, or the female part 79 is of a U-shaped structure and sleeved on the male part 74. With the setting of this technical solution, when it is necessary to replace the vehicle 5 with the spare vehicle 71, the double-headed bracket 78 is driven to move to one side of the male part 74, and one of the female parts 79 is driven to be nested on the male part 74, so as to drive the vehicle 5 or the spare vehicle 71 to move along the long slot 77 and the short slot, enabling the vehicle 5 or the spare vehicle 71 to move between the movable bearing frame 73 and the fixed bearing frame 72.

[0094] In order to be able to fix the vehicle 5 that has moved into the movable bearing frame 73, preferably, as an embodiment of the frame body 521, one of the frame bodies 521 is fixedly connected to the vehicle frame 51 or this frame body 521 is a part of the vehicle frame 51. A stepped limit structure 522 on one side is provided on this frame body 521. The other frame body 521 can move within the vehicle frame 51, is guided by a guiding structure, and is driven to move by a fourth power source 56. The fixed end of the fourth power source 56 is fixedly connected to the movable bearing frame 73, and its movable end can penetrate the movable bearing frame 73, the vehicle frame 51 and abut against the movable frame body 521 to push this frame body 521 to move. Correspondingly, a positioning slot 57 for the fourth power source 56 to be embedded is provided on this frame body 521. With the setting of this technical solution, when the vehicle 5 enters the movable bearing frame 73, the movable end of the fourth power source 56 can fix the vehicle frame 51 and the frame body 521 to prevent the vehicle 5 from moving within the movable bearing frame 73.

[0095] In order to fix the spare vehicle 71 moved into the fixed carrying frame 72, correspondingly to the above embodiment, the spare vehicle 71 and the fixed carrying frame 72 of the vehicle replacement device 7 have the same structure as above. However, preferably, the difference is that the opening direction of the positioning groove 57 of the spare vehicle 71 is opposite to that of the positioning groove 57 of the vehicle 5, and the position arrangement of the moving end of the power source on the fixed carrying frame 72, which has the same function as the fourth power source 56, is opposite to that of the fourth power source 56.

[0096] Discharging device

[0097] As Figure 21 , 22 shown, the vehicle 5 filled with the product 59 will be moved from the moving carrying frame 73 to the fixed carrying frame 72 by the vehicle replacement device 7. At this time, it is necessary to take out the product 59 from the vehicle 5. In order to be able to take out the product 59 from the vehicle 5, the discharging device is arranged below the vehicle replacement device 7. The discharging device includes a top plate 83 driven by a power source and capable of moving up and down. The top plate 83 can pass through the long groove 77 and the vehicle frame 51 and push against the bundling strip 53. When the top plate 83 moves upward, it can push the bundling strip 53 away from the isolation frame 52, facilitating the extraction by the staff or machine equipment.

[0098] Feeding device

[0099] The feeding device is used to convey the unprocessed raw materials to the processing area of the processing device to be processed.

[0100] As Figure 5 , 8 , 9, 11 shown, the feeding device is arranged at the feeding port of each processing unit. Since the U-shaped piece 19, the welding piece 29, and the flat piece 49 are flat pieces, preferably, the feeding devices of the U-shaped piece processing device 11, the welding piece processing device 21, and the flat piece processing device 41 adopt belt transmission driven by a power source. The belt and the corresponding power source can be 1 group, or can be 2 groups distributed up and down. By adopting 2 groups of belts distributed up and down, the lower belt is used to support the workpiece, and the upper belt is used to press the workpiece, improving the flatness of the workpiece during feeding and the friction during transmission. Further, the upper belt and the corresponding power source can be set to move up and down driven by another power source, facilitating the adjustment of the pressing force of the upper belt and adapting to workpieces of different thicknesses.

[0101] Particularly, since the raw material of the fin 39 is wavy, preferably, the feeding device of the fin processing device 31 adopts a conveying wheel 84 driven by a power source. The conveying wheel 84 is of a cylindrical structure, and its outer surface is provided with threads. The thread direction of the conveying wheel 84 is consistent with the moving direction of the fin 39. When feeding the raw material, the threads can be embedded into the wavy structure, and by continuously rotating the conveying wheel 84, the fin 39 is continuously pushed forward. The conveying wheel 84 can be set to move up and down driven by another power source, and the embedding action and the cancellation of the embedding action are realized through the up and down movement of the conveying wheel 84.

[0102] The number of products 59 that can be processed and produced simultaneously by the present invention depends on the number of the U-shaped sheet processing device 11, the solder sheet processing device 21, the fin processing device 31, and the flat sheet processing device 41 provided. For example, when 5 products need to be produced simultaneously, preferably, the U-shaped sheet processing device 11, the solder sheet processing device 21, the fin processing device 31, and the flat sheet processing device 41 are all 5. Correspondingly, the loading platform 81, the picking unit 611, and the bundling strip 53 are set to 5. In the overall layout of each component structure, the processing devices are arranged in a row, the handling device is arranged above the processing devices, the picking unit 611 is arranged in a row in the direction of the arrangement of the processing devices, the shifting unit 8 is on the side of the processing devices, the loading platform 81 is arranged in a row in the direction of the arrangement of the processing devices, the carrier 5 is arranged at the discharge port of each processing unit, and the bundling strip 53 is arranged in a row in the carrier 5 in the direction of the arrangement of the processing devices. The present invention is reasonably designed in the overall structure, and the conveying, processing, shifting, and handling of each workpiece do not interfere with each other, and the design layout for adapting to the processing quantity can be carried out within a large range according to the required number of processed products 59.

[0103] The power source described above may include a cylinder, an oil cylinder, an electric telescopic rod, a motor, etc.; in addition to the camshaft and eccentric shaft applied to the mold for small-range movement mentioned above, the power source and transmission structure for long-distance movement are linear modules, including a servo motor, a coupling, a lead screw, etc.; in the present invention, components with a power source and those that need to be driven can be cooperated with the power source and the transmission mechanism and are also provided with a guiding mechanism. The guiding mechanism may include a linear slide rail or the cooperation of a guiding column and a guiding sleeve arranged in a guiding hole. For example, the guiding mechanism such as the connecting column 823 and the first displacement part 822 in the shifting unit 8.

[0104] The specific working process of the present invention is as follows:

[0105] Each feeding device separately feeds raw materials into each processing device from the feeding port. The processing device processes the raw materials. The shifting unit moves the processed workpieces from the processing area to the handling area, and each handling device picks up each workpiece. According to the order of workpiece placement, the carrier 5 moves successively to the discharge ports of the corresponding processing devices, and each handling device places each workpiece into the carrier 5 in sequence. And so on.

[0106] Until the carrier 5 is full, the carrier 5 moves to one side of the carrier replacement device 7. The carrier replacement device 7 exchanges the full carrier 5 and the empty spare carrier 71. The spare carrier 71 continues the tasks of the carrier 5, and the carrier 5 is discharged by the discharging device.

[0107] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0108] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any suitable way. To avoid unnecessary repetition, the present invention does not separately describe various possible combination methods.

[0109] In addition, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, it should also be regarded as the content disclosed by the present invention.

Claims

1. A PTC automatic assembly line, characterized in that, it includes a processing device, a handling device, and a carrier (5); the processing device includes at least one U-shaped sheet processing device (11), at least one solder sheet processing device (21), at least one fin processing device (31), and at least one flat sheet processing device (41). Each processing device is horizontally arranged, the feeding ports of each processing device are on the same side, and the discharging ports of each processing device are on the other side. The carrier (5) is arranged on one side of the discharging port of each processing device, and the carrier (5) is movably arranged; the handling device has a plurality corresponding to each processing device, and each handling device is used to obtain each workpiece and transport the workpiece to the carrier (5) according to the installation sequence of each workpiece to form a product (59); Each processing device includes at least one loading platform (81) for carrying raw materials or workpieces processed from raw materials, and a displacement driving unit (82) fixedly connected to the loading platform and capable of moving the workpiece to the area for corresponding handling device to handle, and a carrier frame (51); The carrier (5) includes: A carrier frame (51); An isolation frame (52), arranged inside the carrier frame (51), having two pairs of oppositely arranged frames (521), one of the frames (521) is fixedly connected to the carrier frame (51), and the other frame (521) is driven by a power source. The frame (521) is provided with a stepped limit structure (522) for limiting the four corners of the product (59) formed by each workpiece combination; A bundling strip (53), arranged inside the isolation frame (52), having an overall U-shaped structure. The bundling strip (53) is arranged at intervals and alternately with the stepped limit structure (522) for accommodating a row of multiple products (59); Alternatively, the carrier (5) includes: A carrier frame (51); An isolation frame (52), arranged inside the carrier frame (51), having two pairs of oppositely arranged frames (521). The frame (521) is provided with a stepped limit structure (522) for limiting the four corners of the product (59) formed by each workpiece combination; A bundling strip (53), arranged inside the isolation frame (52), having an overall U-shaped structure. The bundling strip (53) is arranged at intervals and alternately with the stepped limit structure (522) for accommodating a row of multiple products (59); The bundling strip (53) and the stepped limit structure (522) respectively have a plurality of them, arranged alternately at intervals, and there is a gap between the two. A push rod (54) that can move up and down and can enter or exit the gap is arranged in the gap between the bundling strip (53) and the stepped limit structure (522); the carrier (5) is movably arranged in a moving carrying frame (73) in one direction, and the moving carrying frame (73) is driven by a power source to move on one side of the discharging port of each processing device; The PTC automatic assembly line further includes a vehicle replacement device (7), and the vehicle replacement device (7) is arranged on one side at one end of the moving path of the vehicle (5); the vehicle replacement device includes a spare vehicle (71), two fixed bearing frames (72), and a vehicle driving unit; the spare vehicle (71) is detachably arranged in one of the fixed bearing frames (72), and the fixed bearing frame (72) is fixedly arranged; the vehicle (5) is detachably arranged in the moving bearing frame (73), and the moving bearing frame (73) is movably arranged following the vehicle (5); the vehicle driving unit is used to replace the spare vehicle (71) and the vehicle (5) in the fixed bearing frame (72) and the moving bearing frame (73). Moreover, the processing devices are arranged in a row, the handling device is arranged above the processing devices, the picking units (611) are arranged in a row in the direction of the arrangement of the processing devices, the shifting unit (8) is on the side of the processing devices, the loading platforms (81) are arranged in a row in the direction of the arrangement of the processing devices, the vehicle (5) is arranged at the discharge ports of the respective processing units, and the bundling strips (53) are arranged in a row in the vehicle (5) in the direction of the arrangement of the processing devices.

2. The PTC automatic assembly line according to claim 1, characterized in that, the U-shaped sheet processing device (11) includes a U-shaped sheet processing die (111) and a first platform (119) which are oppositely arranged up and down; wherein, the upper U-shaped sheet processing die (111) includes a first cutting tool (112) and two limiting protrusions (113), the lower U-shaped sheet processing die (111) includes two bending bumps (114), the first platform (119) is arranged between two adjacent loading platforms (81), a tool through hole (115) capable of passing through the first cutting tool (112) and a bump through hole (116) capable of passing through the two bending bumps (114) respectively are arranged on the first platform (119), the two bending bumps (114) are respectively located inside the two limiting protrusions (113), and there is a gap not less than the thickness of the U-shaped sheet (19) between the two bending bumps (114) and the two limiting protrusions (113); the U-shaped sheet processing die (111) is driven by a power source.

3. The PTC automatic assembly line according to claim 1, characterized in that, the fin processing device (31) includes: a filling unit (311) for filling the gap on the side of the loading platform (81) for carrying fins (39) during the feeding process; a tool unit (312) for punching the fins (39) when the filling unit (311) exits the gap on the side of the loading platform (81); a separating unit (313) for increasing the side gap of the loading platform (81) to separate the fins (39) after the tool unit (312) completes the punching action.

4. The PTC automatic assembly line according to claim 3, characterized in that, The separation unit (313) includes a sliding module (3131) disposed between the loading platform (81) and the shifting drive unit (82) and configured to enable the loading platform (81) to slide on the shifting drive unit (82), a linkage chain (3132) with one end fixedly connected to the loading platform (81) and the other end slidably connected to an adjacent loading platform (81) or a feeding device, and a power source fixedly connected to the loading platform (81) near the processing discharge port; one end of the linkage chain (3132) is fixedly connected and the other end is slidably connected.

5. The PTC automatic assembly line according to claim 1, characterized in that the handling device includes: at least two picking units (611) for picking up the workpiece; at least two arms (612) for mounting the picking units (611); a biaxial slide (613) for mounting the arms (612) and driving the arms (612) to move in two axial directions; one of the arms (612) is fixedly connected, the other arms (612) are slidably connected to the biaxial slide (613), and adjacent arms (612) are hinged by four linkages (615) capable of forming a rhombus structure, two linkages (615) are hinged on the same arm (612), and one of the slidable arms (612) is driven to move linearly by a power source.

6. The PTC automatic assembly line according to claim 1, characterized in that the handling device includes a U-shaped sheet handling device (61), a solder sheet handling device (62), a fin handling device (63), and a flat sheet handling device (64), and the picking unit (611) of the fin handling device (63) includes 1-4 jaws (614) movable in a plane.

7. The PTC automatic assembly line according to claim 1, characterized in that the feed inlets of the respective processing devices are each provided with a feeding device for conveying unprocessed raw materials to the processing area to be processed of the processing device.

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