Automatic hot riveting equipment

Abstract

The utility model discloses an automatic hot riveting device which comprises a working table, a hot riveting assembly and a conveying belt, the conveying belt is installed on the working table, the hot riveting assembly is installed on the conveying belt, the whole structure of the device is compact, the occupied space is small, a pressing plate can generate large pressure on a carrier plate lower die through a buffer column, and therefore the carrier plate lower die can be tightly pressed. And the positioning rod can help the pressing part to position the carrier plate lower die, and further help each hot riveting head to correspond to the riveting column in a positioning manner, so that all the riveting columns on the printed circuit board can be accurately positioned and the printed circuit board can be riveted. A mechanical gripper is further arranged at the tail end of the equipment and can grab the riveted printed circuit board and check the riveting quality of the printed circuit board.

Description

TECHNICAL FIELD

[0001] The utility model relates to the forming field of plastic parts, concretely relates to a kind of equipment that is joined by heating and pressurizing to plastic prefabricated component. BACKGROUND

[0002] Hot riveting equipment is a kind of process equipment for connecting multiple parts, and is particularly suitable for the case where at least one part is made of thermoplastic material. This equipment softens the plastic rivet column to above the glass transition temperature by heating with ultrasonic waves, hot gas, hot die or infrared, and then forms a tight connection of the parts by applying pressure with a riveting head. The hot riveting process is also well applied in the field of printed circuit board processing due to its high economy and suitability for mass production.

[0003] However, the hot riveting equipment in the prior art has the problems of complex structure, large floor area and single function. For example, the "full-automatic hot riveting machine" disclosed in the announcement number CN221892606U has the hot riveting part completely located inside the equipment, which is complex to maintain, cannot test and inspect the completed products during the process, and lacks positioning during product processing. UTILITY MODEL CONTENT

[0004] The utility model aims to design an automatic hot riveting equipment with simple structure, high automation degree and easy maintenance. Another object of the utility model is to make the structure of the riveting part of the hot riveting equipment compact and small in size. A further object of the utility model is to be able to rivet multiple printed circuit boards, ensure good positioning accuracy and processing accuracy, provide large pressure and not damage the riveted circuit boards.

[0005] The utility model achieves the above technical objects through the following technical means.

[0006] An automatic hot riveting equipment includes a workbench, a conveying mechanism installed on the workbench, and a hot riveting assembly installed on the conveying mechanism. The pressing part of the hot riveting assembly is matched with the lower die of the carrier plate.

[0007] Further, the bottom of the hot riveting assembly is provided with the pressing part, the periphery of the pressing part is provided with a fixing block, the pressing part is connected with the fixing block, the fixing block is connected with a positioning rod, and the positioning rod penetrates through the fixing block and the pressing part.

[0008] The positioning rod is matched and positioned with the holes provided around the lower die of the carrier plate. The shaft of the part matched with the lower die of the carrier plate of the positioning rod is a stepped shaft, which is thick at the top and thin at the bottom. The thin segment is in contact with the hole of the lower die of the carrier plate first, and the thick segment is responsible for accurate positioning.

[0009] As preferred, the hot riveting assembly is connected with the gantry-shaped housing, the upper end of the pressing part is connected with a pressing cylinder, the pressing cylinder is fixedly connected with the housing, the lowermost part of the pressing part is connected with a pressing plate, the pressing plate is attached to the lower die of the carrier plate, and a plurality of hot riveting heads and a plurality of buffer columns are arranged between the pressing plate and the pressing part.

[0010] Further, the connecting position of the hot riveting head and the pressing plate is a through hole, and the buffer column and the pressing plate are fixedly connected.

[0011] As preferred, the upper part of the pressing part is a pressing block and a heating assembly, the pressing block and the heating assembly are connected with the buffer column, a semi-enclosed chamber is arranged at the connecting position of the pressing block and the heating assembly and the buffer column, the end of the buffer column is a buffer column head located in the semi-enclosed chamber, and the diameter of the buffer column head is greater than the diameter of the buffer column rod.

[0012] Further, a plurality of circuit board card slots are arranged transversely on the lower die of the carrier plate, a positioning groove is arranged at the bottom of the circuit board card slot close to the center position, the circuit board card slot is mounted with a printed circuit board, the opening of the circuit board card slot is small at the top and large at the bottom, and the cross section is trapezoidal.

[0013] As preferred, the lower die of the carrier plate is mounted with a printed circuit board, a plurality of riveting columns are arranged on the printed circuit board, and the riveting columns correspond to the hot riveting heads one by one.

[0014] The end of the hot riveting head is recessed with a semicircular recessed groove heating part.

[0015] Further, the conveying mechanism comprises a conveying belt, a mechanical arm is arranged at the conveying end of the conveying belt on the workbench, the mechanical arm is fixed on the workbench and has a plurality of rotation degrees of freedom, and a mechanical gripper is arranged at the end of the mechanical arm.

[0016] Further, the mechanical gripper is composed of two single-sided claws, the upper end of the single-sided claw is a block-shaped mounting part, a connecting part is connected with the mounting part below the mounting part, the connecting part is in a herringbone shape, the bottom of the connecting part is transversely connected with a column head mounting plate, and columnar adsorption column heads are mounted on the two sections of the column head mounting plate.

[0017] The utility model has the following gain effects:

[0018] The utility model discloses an automatic hot riveting equipment, the equipment includes workbench and hot riveting assembly and conveyer belt, and the conveyer belt is installed on the workbench, and the hot riveting assembly is installed on the conveyer belt, and the whole equipment structure is compact, and the floor space is small, and through the buffer column, can make the pressing plate to the load plate lower mould produce greater pressure, and the positioning rod can help the pressing part to the positioning of load plate lower mould, further help every hot riveting head and rivet post positioning correspondence, ensure that all rivet posts on the printed circuit board can be positioned accurately and rivet the printed circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model equipment whole.

[0020] Figure 2 It is the three-dimensional structure schematic diagram of the utility model conveyer belt and hot riveting assembly.

[0021] Figure 3 It is Figure 2 The partial close-up view of A part.

[0022] Figure 4 It is the side view section view of the utility model hot riveting assembly.

[0023] Figure 5 It is Figure 4 The partial close-up view of B part.

[0024] Figure 6 It is the front view section view of the utility model hot riveting assembly.

[0025] Figure 7 It is Figure 6 The partial close-up view of C part.

[0026] Figure 8 It is the partial close-up view of the utility model mechanical hand claw.

[0027] Figure 9 It is the side view section view of the utility model mechanical hand claw.

[0028] In the drawing, 1-workbench, 2-hot riveting assembly, 21-pressing part, 211-pressing plate, 212-pressing block and heating assembly, 2121-buffer column moving chamber, 213-buffer column, 2131-buffer column head, 214-hot riveting head, 2141-heating part, 22-connection block, 23-press cylinder, 24-positioning rod, 3-conveyer belt, 4-load plate lower mould, 41-printed circuit board, 411-rivet post, 42-circuit board clamping groove, 43-positioning groove, 5-mechanical hand claw, 51-oneside claw, 511-installation part, 512-connection part, 52-suction post head, 53-post head installation plate. DETAILED DESCRIPTION

[0029] The utility model will be further explained in connection with the drawings and specific embodiments, but the protection scope of the utility model is not limited to this.

[0030] Embodiment one:

[0031] As Figures 1 to 7 shown, an automatic hot riveting equipment, including workbench 1, the workbench 1 is equipped with conveying mechanism, the hot riveting assembly 2 is installed on conveying mechanism, and the compression part 21 of the hot riveting assembly 2 is matched with carrier plate lower die 4.The purpose of the automatic hot riveting equipment of the utility model is to efficiently and accurately complete the riveting work on printed circuit board.The main body of the equipment is composed of workbench 1, conveying mechanism, hot riveting assembly 2 and carrier plate lower die 4 and other components.

[0032] Workbench 1 is the base of the whole equipment.The conveying mechanism is installed on the upper portion of the workbench 1, and the main component of the conveying mechanism playing the conveying role is a conveying belt 3, which is responsible for conveying the carrier plate lower die 4 needing riveting to the lower portion of the hot riveting assembly 2 through the conveying belt 3 for riveting after being processed in the previous process.

[0033] The hot riveting assembly 2 is the main area of riveting of the utility model, and the hot riveting assembly 2 is installed on the conveying mechanism, specifically on the side of the conveying belt 3, and is fixed at a position of the conveying mechanism and cannot be moved by the conveying belt 3.Each carrier plate lower die 4 moved by the conveying belt 3 on the conveying belt 3 will stop when reaching the lower portion of the hot riveting assembly 2 for the first time, and the conveying belt 3 will start again after the carrier plate lower die 4 located below the hot riveting assembly 2 is riveted.The next carrier plate lower die 4 not yet riveted is transported to the lower portion of the hot riveting assembly 2.

[0034] The bottom of the hot riveting assembly 2 is provided with a compression part 21, and a plate-shaped compression plate 211 is arranged at the bottom of the compression part 21.The compression plate 211 has a large area and can cover most of the area of the carrier plate lower die 4, so that the pressure is uniformly distributed on the carrier plate lower die 4 when the pressure is applied.Four printed circuit boards 41 are transversely and equidistantly arranged on one carrier plate lower die 4, and the carrier plate lower die 4 loaded with the four printed circuit boards 41 is located below the compression plate 211 of the hot riveting assembly 2.When the compression plate 211 covers the carrier plate lower die 4, it can cover the four printed circuit boards 41, and the covering position includes the riveting column 411 of the printed circuit board 41, and the covering position is close to the middle position of the printed circuit board 41, so that the compression part 21 is pressed on the middle position of the printed circuit board 41.

[0035] The hot riveting assembly 2 is connected with the gantry-shaped housing 25 between the workbench 1, the upper end of the pressing part 21 is connected with the pressing cylinder 23, the pressing cylinder 23 is fixedly connected with the housing 25, the upper end of the pressing cylinder 23 is not moved and is fixedly installed on the housing 25, and the rest of the hot riveting assembly 2 is pulled by the pressing cylinder 23 under force, so that the force received by the pressing cylinder 23 is supported by the housing 25 and is finally transmitted to the workbench 1.

[0036] The pressure distribution on the printed circuit board 41 can be ensured to be reasonable, and the printed circuit board 41 will not be shaken, moved, rotated, turned over or have position deviation during riveting. Correspondingly, the positions and areas of the printed circuit boards 41 on the same carrier plate lower die 4 covered by the pressing part 21 are the same, so that the pressure received by each printed circuit board is the same, the riveting effect is good, and the product quality is guaranteed.

[0037] The upper end of the pressing part 21 is a plane, the center position of the pressing part 21 is connected with the pressing cylinder 23, and the pressing cylinder 23 can push and pull the pressing part 21 up and down. The pressing cylinder 23 can be driven by gas or motor, or even by hydraulic pressure. The four corner positions around the upper surface of the pressing part 21 are symmetrically distributed with fixed blocks 22. The center of the fixed block 22 is provided with a through hole, and the positioning rod 24 penetrates through the through holes and also penetrates through the upper part of the pressing part 21 along the axis of the through hole of the fixed block 22, thereby positioning the pressing part 21, the fixed block 22 and the entire hot riveting assembly 2 and guaranteeing the synchronization of the up-and-down movement of the pressing part 21.

[0038] The positioning rod 24 is positioned in cooperation with the holes provided around the carrier plate lower die 4. The shaft of the part where the positioning rod 24 cooperates with the carrier plate lower die 4 is a stepped shaft, which is thick at the upper end and thin at the lower end. The thin section first roughly contacts the hole of the carrier plate lower die, and the thick section is responsible for accurate positioning.

[0039] The positioning rod 24 is fixedly connected with the pressing part 21, the positioning rod 24 can correspond to the four round holes on the edges and corners of the carrier plate lower die 4, so as to guarantee the position alignment between the pressing part 21 and the carrier plate lower die during riveting. The fixing mode of the positioning rod 24 to the pressing part 21 can adopt welding or side-end key fixing, and the connection between the fixed block 22 and the pressing part 21 can adopt welding or bolt connection. Compared with welding, the latter connection mode of the positioning rod 24 and the fixed block 22 is more conducive to disassembly and maintenance, but the cooperation firmness and cooperation precision are not as good as welding fixing.

[0040] The upper end of the pressing part 21 is connected with the pressing cylinder 23 through a guide column. In the embodiment, the pressing cylinder 23 is pneumatic, which can provide stable and controllable downward pressure. The lowermost end of the pressing part 21 is connected with a pressing plate 211, which is attached to the lower die 4 of the carrier plate, ensuring uniform distribution of pressure during the hot riveting process.

[0041] Between the pressing plate 211 and the pressing part 21, there are twelve hot riveting heads 214 and six buffer columns 213. There are three riveting columns 411 on each printed circuit board 41. Therefore, the hot riveting heads on the pressing plate 211 are also arranged in groups of three, totaling four groups. The arrangement of each group of hot riveting heads 214 is the same as that of the riveting columns on the printed circuit board 41. The hot riveting heads 214 are made of metal materials with good thermal conductivity. The end of each hot riveting head 214 is recessed with a precisely machined semicircular recessed heating part 214. When the riveting column 411 is heated, the plastic becomes a semicircular riveting head, which can fix the upper and lower layers of the printed circuit board 41 and position the riveting column, achieving high-quality hot riveting connection.

[0042] The upper end of each hot riveting head 214 is connected with the upper pressing block and heating assembly 212 of the pressing part 21. The pressing block and heating assembly 212 can uniformly heat the hot riveting heads 214, ensuring that the temperature of each hot riveting head 214 reaches the temperature of the hot plastic riveting column 411. The hot riveting head 214 is provided with an opening at the corresponding position on the pressing plate 211, and the hot riveting head 214 can move up and down in the opening.

[0043] The buffer column 213 is a metal rod structure, and the buffer column head 2131 is movably connected with the pressing block and heating assembly 212 within a certain range and fixedly connected with the pressing plate 211. The structure of the buffer column 213 includes a buffer column rod part and a buffer column head 2131. The diameter of the buffer column head 2131 is greater than that of the buffer column rod part and is located in a semi-closed chamber. The chamber is located inside the pressing block and heating assembly 212, and the diameter of the opening at the lower end of the chamber matches that of the rod part of the buffer column, but is much smaller than that of the buffer column head 2131, which can ensure that the buffer column head 2131 always moves within the pressing block and heating assembly 212 without detaching from the pressing block and heating assembly 212.

[0044] And in the buffer column 213 is located between the pressure block and heating assembly 212 and the pressure plate 211 column segment cover with energy storage components, in this embodiment is provided with a spring. Spring on the one hand can be in the pressure cylinder drive the pressure of the contact with the printed circuit board 4 when the pressure plate 211 and the force is smaller. The pressure of the pressure plate 211 down pressure will be with the height decreases and stable increase. And in the fixed spring can provide, additional down pressure, let the pressure plate 211 to the carrier plate down mold 4 pressure more tight. Therefore the buffer column 213 can absorb the impact force generated in the process of pressing, protect the hot rivet head 214 and printed circuit board 41 not by a larger impact. On the other hand can provide a larger pressure after pressing.

[0045] Carrier plate down mold 4 is the key component of carrying printed circuit board 41, which is transversely arranged with a plurality of circuit board card slots 42, and a positioning slot 43 is designed at the bottom center position of each card slot for positioning and fixing the printed circuit board 41 to prevent displacement during hot riveting. The opening of the circuit board card slot 42 is designed to be small at the top and large at the bottom, and the cross section is trapezoidal, which facilitates quick and accurate installation and positioning of the printed circuit board 41, while ensuring good stability and guidance.

[0046] During hot riveting, the conveying mechanism transports the carrier plate down mold 4 loaded with the printed circuit board 41 to the hot riveting station. At this time, the pressure cylinder 23 drives the pressure part 21 to descend, and the pressure plate 211 is tightly attached to the carrier plate down mold 4. Then, the hot rivet head 214 contacts the rivet column 411 at a predetermined temperature and pressure, realizing riveting. Since the end of the hot rivet head 214 is concave with a semicircular recess heating part, the rivet column after hot shaping also becomes semicircular, firmly connecting the upper and lower layers of the printed circuit board 41 together, completing the production of the product.

[0047] Embodiment two:

[0048] This embodiment is close to the technical solution of embodiment one during conveying and hot riveting. The main difference between this embodiment and embodiment one is that after processing, a mechanical hand is used to grab the riveted printed circuit 41 and perform inspection.

[0049] As shown in Figures 1 to 9 An automatic hot riveting equipment, comprising a workbench 1, a conveying mechanism installed on the workbench 1, a hot riveting assembly 2 installed on the conveying mechanism, the conveying mechanism installed on the workbench 1, and a pressure part 21 of the hot riveting assembly 2 matched with a carrier plate down mold 4. The purpose of the automatic hot riveting equipment is to efficiently and accurately complete the riveting work on the printed circuit board. The equipment main body is composed of a workbench 1, a conveying mechanism, a hot riveting assembly 2, and a carrier plate down mold 4.

[0050] The workbench 1 is the base of the whole device. A conveying mechanism is installed on the upper part of the workbench 1, and the conveying mechanism mainly comprises a conveying belt 3, which is responsible for conveying the lower die plate 4 of the carrier plate which has been processed in the previous process and needs to be riveted to the lower part of the hot riveting assembly 2 for riveting.

[0051] The hot riveting assembly 2 is the main riveting area of the utility model, and the hot riveting assembly 2 is installed on the conveying mechanism, specifically on the side of the conveying belt 3. The hot riveting assembly 2 is fixed at a position of the conveying mechanism and cannot be moved by the conveying belt 3. The conveying belt 3 will stop when each lower die plate 4 on the conveying belt 3 moves to the lower part of the hot riveting assembly 2 for the first time, and then start after the lower die plate 4 located below the hot riveting assembly 2 is riveted. The next lower die plate 4 which has not been riveted is transported to the lower part of the hot riveting assembly 2.

[0052] The bottom of the hot riveting assembly 2 is provided with a pressing part 21, and a plate-shaped pressing plate 211 is arranged at the bottom of the pressing part 21. The area of the pressing plate 211 is large, and can cover most of the area of the lower die plate 4. When pressure is applied, the pressure is evenly distributed on the lower die plate 4. Four printed circuit boards 41 are transversely and equally spaced on one lower die plate 4. During riveting, the lower die plate 4 provided with the four printed circuit boards 41 is located below the pressing plate 211 of the hot riveting assembly 2. When the pressing plate 211 covers the lower die plate 4, it can cover the four printed circuit boards 41, and the covering position includes the rivet column 411 of the printed circuit board 41, and the covering position is close to the middle part of the printed circuit board 41, so that the pressing part 21 is pressed on the middle part of the printed circuit board 41.

[0053] The pressure distribution on the printed circuit board 41 can be ensured to be reasonable, and the printed circuit board 41 will not produce position deviation such as shaking, moving, rotating, turning, etc. during riveting. Correspondingly, the positions and areas covered by the pressing part 21 on the printed circuit boards 41 on the same lower die plate 4 are the same, so that the pressure received by each printed circuit board is the same, the riveting effect is good, and the quality of the product is guaranteed.

[0054] The upper end of the pressing part 21 is flat, the center of the pressing part 21 is connected with a pressing cylinder 23, the pressing cylinder 23 can push and pull the pressing part 21 up and down. The pressing cylinder 23 can be driven by air or motor, or even by hydraulic pressure. Around the upper surface of the pressing part 21, four fixed blocks 22 are symmetrically distributed at the four corners. The center of the fixed block 22 is provided with a through hole, and the positioning rod 24 penetrates through the through holes along the axis of the through hole of the fixed block 22, penetrates through the upper part of the pressing part 21, and positions the pressing part 21, the fixed block 22 and the whole hot riveting assembly 2, which ensures the synchronization of the up and down movement of the pressing part 21.

[0055] The positioning rod 24 is fixedly connected with the pressing part 21, and can correspond to the four round holes on the edges and corners of the carrier plate lower die 4, so as to ensure the position alignment between the pressing part 21 and the carrier plate lower die during riveting. The fixing mode of the positioning rod 24 on the pressing part 21 can adopt welding or side end key fixing, and the connection between the fixed block 22 and the pressing part 21 can be achieved by welding or bolt connection. Compared with welding, the latter connection mode of the positioning rod 24 and the fixed block 22 is more conducive to disassembly and maintenance, but the firmness and precision of cooperation are not as good as welding.

[0056] The upper end of the pressing part 21 is connected with the pressing cylinder 23 through a guide column. In the embodiment, the pressing cylinder 23 is driven by air, which can provide stable and controllable downward pressure. The lowermost end of the pressing part 21 is connected with a pressing plate 211, which is in close contact with the carrier plate lower die 4, ensuring uniform distribution of pressure during hot riveting.

[0057] Between the pressing plate 211 and the pressing part 21, twelve hot riveting heads 214 and six buffer columns 213 are arranged. Corresponding to each printed circuit board 41, three riveting columns 411 are arranged on the printed circuit board 41. Therefore, the hot riveting heads on the pressing plate 211 are also arranged in groups of three, a total of four groups. The arrangement rule of each group of hot riveting heads 214 is the same as that of the riveting columns on the printed circuit board 41. The hot riveting heads 214 are made of metal materials with good thermal conductivity, and the ends are concave with precisely processed semicircular groove-shaped heating parts 214. The heating parts 214 are used to heat the riveting columns 411 to become semicircular riveting heads, which can fix the upper and lower layers of the printed circuit board 41 and position the riveting columns, realizing high-quality hot riveting connection.

[0058] The upper end of each hot rivet head 214 is connected with the upper part of the pressing block and heating assembly 212 of the pressing part 21, and the pressing block and heating assembly 212 can uniformly heat the hot rivet head 214, so that the temperature of each hot rivet head 214 reaches the temperature of the hot plastic rivet column 411. The hot rivet head 214 is provided with an opening at the corresponding position on the pressing plate 211, and the hot rivet head 214 can move up and down in the opening.

[0059] The buffer column 213 is a metal rod structure, and the buffer column head 2131 is movably connected with the pressing block and heating assembly 212 within a certain range and is fixedly connected with the pressing plate 211. The structure of the buffer column 213 includes a buffer column rod part and a buffer column head 2131. The diameter of the buffer column head 2131 is greater than that of the buffer column rod part, and the buffer column head 2131 is located in a semi-closed chamber. The chamber is located in the interior of the pressing block and heating assembly 212, and the diameter of the opening at the lower end of the chamber matches the diameter of the rod part of the buffer column, but is much smaller than the diameter of the buffer column head 2131, so that the buffer column head 2131 can always move in the pressing block and heating assembly 212 without being separated from the pressing block and heating assembly 212.

[0060] The buffer column 213 is located between the pressing block and heating assembly 212 and the pressing plate 211, and is provided with an energy storage assembly, and in this embodiment, a spring is provided. On one hand, the spring can make the force smaller when the pressing cylinder drives the pressing part 21 to press the pressing plate 211 to contact the printed circuit board 4. The pressing force of the pressing plate 211 will stably increase as the height decreases. After being completely fixed, the spring can provide additional pressing force, so that the pressing plate 211 can press the carrier plate lower mold 4 more tightly. Therefore, the buffer column 213 can absorb the impact force generated in the pressing process, and protect the hot rivet head 214 and the printed circuit board 41 from being impacted by a large force. On the other hand, the buffer column 213 can provide a larger pressing force after pressing.

[0061] The carrier plate lower mold 4 is a key component for carrying the printed circuit board 41, and a plurality of circuit board clamping grooves 42 are arranged transversely on the carrier plate lower mold 4. A positioning groove 43 is designed at the bottom center position of each clamping groove, which is used for positioning and fixing the printed circuit board 41 to prevent displacement during hot riveting. The opening of the circuit board clamping groove 42 is designed to be small at the top and large at the bottom, and the cross section is trapezoidal. Such a structure facilitates quick and accurate installation and positioning of the printed circuit board 41, and ensures good stability and guidance.

[0062] In the hot riveting process, the conveying mechanism conveys the carrier lower mold 4 with the printed circuit board 41 to the hot riveting station. At this time, the pressing cylinder 23 drives the pressing part 21 to descend, and the pressing plate 211 is tightly attached to the carrier lower mold 4. Then, the hot riveting head 214 contacts with the riveting column 411 at a preset temperature and pressure, and riveting is realized. Since the end of the hot riveting head 214 is concave with a semicircular groove heating part, the riveting column after thermal shaping also becomes semicircular, firmly connecting the upper and lower layers of the printed circuit board 41 together, and completing the production of the product.

[0063] The conveying mechanism includes the conveying belt 3, and a mechanical arm for checking the riveting quality is further arranged on the workbench 1 at the conveying end of the conveying belt 3. A camera is integrally arranged on the mechanical arm, and the riveting quality of the riveted printed circuit board 41 is checked through machine vision technology. The mechanical arm is fixed on the workbench 1 and has at least five degrees of freedom. The end of the mechanical arm is provided with a mechanical gripper 5 for grabbing the printed circuit board 41. The camera is arranged close to the mounting position of the mechanical gripper 5 and above the mechanical gripper 5.

[0064] The mechanical gripper 5 is composed of two single-sided grippers 51. The upper end of the single-sided gripper 51 is a block-shaped mounting part 511. The end surface area of the mounting part 511 is large, and the mounting part 511 can be reliably mounted with the mechanical arm. A connecting part 512 is connected to the mounting part 511 below the mounting part 511. The connecting part 512 is in a herringbone shape. The bottom of the connecting part 512 is transversely connected to a column head mounting plate 53. The two sections of the column head mounting plate 53 are provided with columnar suction column heads 52.

[0065] The space below the herringbone-shaped connecting part 512 can accommodate the insertion of a column head mounting plate 53. The suction column head uses a vacuum suction cup and can be sucked to the printed circuit board 41. The same column head mounting plate 53 is adsorbed to two sections of the same printed circuit board 4, and the mechanical arm can take up the adsorbed printed circuit board. There are four column head mounting plates 53 on one mechanical gripper 51, so the mechanical gripper 5 can take up four printed circuit boards 41 at a time for quality inspection, that is, to inspect all the printed circuit boards 41 on one carrier lower mold 4.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic heat staking apparatus characterized by comprising: The workbench (1) is provided with a conveying mechanism, a hot riveting assembly (2) is located above the conveying mechanism, a pressing part (21) of the hot riveting assembly (2) is matched with a carrier plate lower die (4), the lowermost part of the pressing part (21) is connected with a pressing plate (211), the pressing plate (211) is attached to the carrier plate lower die (4), a plurality of hot riveting heads (214) and a plurality of buffer columns (213) are arranged between the pressing plate (211) and the pressing part (21), the hot riveting head (214) is provided with an opening at a corresponding position on the pressing plate (211), and the hot riveting head (214) can move up and down in the opening.

2. An automatic riveting apparatus according to claim 1, wherein The bottom of the hot riveting assembly (2) is provided with the pressing part (21), the pressing part (21) is provided with a fixing block (22) around, the pressing part (21) is connected with the fixing block (22), the fixing block (22) is connected with a positioning rod (24), and the positioning rod (24) penetrates through the fixing block (22) and the pressing part (21). The positioning rod (24) is matched and positioned with a hole arranged around the carrier plate lower die (4).

3. An automatic riveting apparatus according to claim 1, wherein The hot riveting assembly (2) is connected with the workbench (1) through a gantry-shaped shell (25), the upper end of the pressing part (21) is connected with a pressing cylinder (23), and the pressing cylinder (23) is fixedly connected with the shell (25).

4. An automatic hot riveter according to claim 3, wherein The connecting position of the hot riveting head (214) and the pressing plate (211) is a through hole, and the buffer column (213) and the pressing plate (211) are fixedly connected.

5. An automatic riveting apparatus according to claim 3, wherein The upper part of the pressing part (21) is a pressing block and heating assembly (212), the pressing block and heating assembly (212) is connected with the buffer column (213), a semi-enclosed chamber is arranged at the connecting position of the pressing block and heating assembly (212) and the buffer column (213), the end of the buffer column (213) is a buffer column head (2131) located in the semi-enclosed chamber, and the diameter of the buffer column head (2131) is greater than that of the rod part of the buffer column (213).

6. The automatic hot riveting apparatus according to claim 1 or 2 or 3 or 4 or 5, wherein A plurality of circuit board clamping grooves (42) are arranged transversely on the carrier plate lower die (4), a positioning groove (43) is arranged at the bottom of the circuit board clamping groove (42) close to the center, the circuit board clamping groove (42) is matched with a printed circuit board (41), the opening of the circuit board clamping groove (42) is small at the top and large at the bottom, and the cross section is trapezoidal.

7. An automatic hot riveter according to claim 3, wherein The carrier plate lower die (4) is provided with a printed circuit board (41), a plurality of riveting columns (411) are arranged on the printed circuit board (41), and the riveting columns (411) are in one-to-one correspondence with the hot riveting heads (214). The end of the hot riveting head (214) is recessed with a semicircular groove heating part (2141).

8. The automatic hot riveting apparatus according to claim 1 or 2 or 3 or 4 or 5 or 7, wherein The conveying mechanism comprises a conveying belt (3), a mechanical arm is arranged at the conveying end of the conveying belt (3) on the workbench (1), the mechanical arm is fixed on the workbench (1) and has a plurality of rotation degrees of freedom, and a mechanical gripper (5) is arranged at the end of the mechanical arm.

9. An automatic hot riveter according to claim 8, wherein The mechanical hand (5) is made up of two single-sided claws (51), the upper end of the single-sided claw (51) is a block-shaped mounting part (511), a connecting part (512) is connected below the mounting part (511), the connecting part (512) is a herringbone shape, the bottom of the connecting part (512) is transversely connected with a column head mounting plate (53), and the two sections of the column head mounting plate (53) are provided with columnar adsorption column heads (52).

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