Automatic blanking and hot pressing tool for nut mounting

Abstract

The application relates to the technical field of television part processing, and provides an automatic blanking and hot-pressing tool for nut installation, which comprises a workbench, a horizontal sliding table, a mounting frame and a hot-pressing device, the horizontal sliding table is arranged on the workbench through a first linear driving mechanism; the hot-pressing device comprises a sliding seat arranged on the mounting frame, a lifting seat arranged on the sliding seat and a blanking mechanism, a material blocking mechanism and a hot-pressing mechanism arranged on the lifting seat; the blanking mechanism comprises a blanking pipe, a hard pipe arranged at one end of the blanking pipe and a blowing pipe used for blowing air to the hard pipe, one end of the blowing pipe is connected with an external air extraction device; the material blocking mechanism is used for making metal inserts enter the hard pipe one by one, and one end of the hard pipe is used for abutting against the upper surface of a workpiece. The automatic blanking and hot-pressing tool for nut installation can avoid the existence of the skewing condition of the metal inserts and the rear cover during hot pressing.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of television part processing, in particular to an automatic blanking and hot pressing tool for nut installation. BACKGROUND

[0002] At present, the television manufacturing industry is booming, and the production scale of television sets is expanding. The requirements for production efficiency and quality are also increasing. The back cover of the television set is an important part of the television set, and its processing quality directly affects the overall performance and appearance of the television set. After the basic processing of the back cover of the television set is completed, metal inserts need to be installed in the pre-processed mounting holes. These metal inserts have internal threaded holes, which are used for subsequent assembly of the back cover with other components, and play a crucial role in the overall stability and assembly precision of the television set.

[0003] In the past television part processing process, in order to install the metal insert into the mounting hole of the back cover of the television set, the following methods are usually used. One is the traditional manual operation mode, in which the worker places the back cover on the workbench, carefully places the metal insert into the mounting hole with tweezers, and manually adjusts the axis of the metal insert to be coaxial with the axis of the mounting hole. Then, the worker holds the hot pressing device to press the metal insert into the mounting hole. This method can ensure the accuracy of installation to a certain extent, but requires high operating skills of the worker and is low in efficiency. Another way is to introduce an automatic hot pressing tool, which includes a workbench, a simple moving device and a hot pressing device. The position of the hot pressing device is adjusted by the moving device. The metal insert is stored in the blanking pipe and falls into the mounting hole. The hot pressing operation is performed by the pressing rod, and the material blocking structure is set to control the number of metal inserts.

[0004] However, the existing metal insert installation methods have obvious defects. Whether it is manual operation or the use of an automatic hot pressing tool, it is difficult to avoid the tilting of the metal insert when it is placed in the mounting hole. Even if the pressing rod is vertically downward during the hot pressing process, due to the deviation of the initial position of the metal insert, there is still a risk of hot pressing tilting, which may cause the back cover to be scrapped, increase production costs and reduce production efficiency. SUMMARY

[0005] In order to avoid the tilting of the metal insert during hot pressing with the back cover, the application provides an automatic blanking and hot pressing tool for nut installation.

[0006] The automatic blanking and hot pressing tool for nut installation provided by the application adopts the following technical scheme:

[0007] The utility model provides a nut installation automatic blanking and hot pressing tool, including workbench, horizontal sliding table, mounting frame and hot pressing device, the horizontal sliding table is set up in workbench through first linear drive mechanism, is used for installing workpiece, the mounting frame is installed in workbench, the hot pressing device includes the sliding seat of mounting in mounting frame, the lifting seat of installing in sliding seat and the blanking mechanism, the material blocking mechanism and the hot pressing mechanism of installing in lifting seat, the mounting frame is provided with second linear drive mechanism for driving sliding seat to slip, the sliding seat is provided with third linear drive mechanism for driving lifting seat to slip,

[0008] The blanking mechanism includes a blanking pipe, a hard pipe provided at one end of the blanking pipe, and a blowing pipe for blowing air to the hard pipe, the blanking pipe and the hard pipe are both vertically installed on the lifting seat, one end of the blowing pipe is connected with an external air extraction device; the material blocking mechanism is used for making the metal inserts enter the hard pipe one by one, one end of the hard pipe is abutted with the upper surface of the workpiece.

[0009] By adopting the above technical scheme, the horizontal sliding table is arranged on the workbench through the first linear drive mechanism, the sliding seat of the hot pressing device can slide on the mounting frame under the driving of the second linear drive mechanism, and the lifting seat can slide on the sliding seat under the driving of the third linear drive mechanism, so that the device can hot press the metal inserts at different positions of the rear cover.

[0010] The lower end of the hard pipe directly abuts with the upper surface of the workpiece, forming a closed and straight vertical channel from the storage bin to the mounting hole, the blowing pipe is used to blow air to the hard pipe, and the inserts are pushed into the mounting hole by using the gas pressure; finally, the inserts can be closely attached to the inner wall of the hole in a very correct state, improving the verticality of the initial installation and avoiding the cleaning of the inclination caused by hot pressing.

[0011] Optionally, the material blocking mechanism includes a first blocking plate, a second blocking plate, and a driving structure, the lifting seat is provided with two sliding grooves, the first blocking plate and the second blocking plate are respectively slidably installed in the two sliding grooves, and the blanking pipe is provided with two insertion interfaces; the distance between the first blocking plate and the second blocking plate is matched with the length of the metal inserts, and the driving structure is used to drive the first blocking plate and the second blocking plate to be respectively inserted into the two insertion interfaces and cover the pipe opening of the blanking pipe.

[0012] By adopting the above technical scheme, the distance between the first blocking plate and the second blocking plate is the same as the length of the metal inserts, when the second blocking plate is opened and the first blocking plate is closed, the metal inserts will enter between the first blocking plate and the second blocking plate; then the second blocking plate is closed and the first blocking plate is opened, the metal inserts between the first blocking plate and the second blocking plate will fall into the mounting hole of the workpiece through the hard pipe, and the remaining metal inserts can be prevented from falling at the same time by closing the second blocking plate, so that the metal inserts can fall one by one.

[0013] Optionally, the driving structure comprises a gear, a first motor and two racks, the gear is rotatably installed on the lifting seat, the first motor is used to drive the gear to rotate; the two racks are respectively installed on the first blocking plate and the second blocking plate, and the two racks are engaged with the gear.

[0014] By using the above technical scheme, the driving structure adopts the combination of the gear, the first motor and the two racks, the first motor drives the gear to rotate, and since the two racks are respectively installed on the first blocking plate and the second blocking plate and are engaged with the gear, when the gear rotates, one blocking plate can be moved towards one side of the discharge pipe, and the other blocking plate can be driven to move away from the other side of the discharge pipe, thereby realizing that the first blocking plate and the second blocking plate are respectively inserted into the two insertion ports of the discharge pipe and cover the pipe opening of the discharge pipe, and the purpose of making the metal inserts enter the hard pipe one by one is achieved.

[0015] Optionally, the driving structure comprises a first air bag, a second air bag in communication with the first air bag and a driving member, the first air bag and the second air bag are respectively installed in the two sliding grooves, the first air bag is connected with the first blocking plate, and the second air bag is connected with the second blocking plate; the driving member is used to drive the first blocking plate to slide.

[0016] By using the above technical scheme, when the driving member drives the first blocking plate to slide towards one side of the insertion port, the gas in the second air bag enters the first air bag, so that the second air bag is compressed and pushes the second blocking plate to cancel the covering of the discharge pipe, and at the same time, the first blocking plate realizes the covering of the pipe opening of the discharge pipe, so that the metal inserts enter between the first blocking plate and the second blocking plate; when the driving member drives the first blocking plate to slide reversely, the first air bag is extruded, the gas in the first air bag enters the second air bag, so that the second blocking plate re-covers the pipe opening of the discharge pipe, and the first blocking plate also re-blocks the discharge pipe, thereby ensuring that only one metal insert falls down each time, and realizing the step-by-step discharging of the metal inserts.

[0017] Optionally, the discharge pipe is provided with a blowing port in communication with the blowing pipe, and the blowing port is located between the two insertion ports.

[0018] By using the above technical scheme, when the metal inserts fall into the hard pipe from the discharge pipe, the blowing pipe assists in pushing the metal inserts through the blowing port in communication with the discharge pipe, so that the metal inserts can enter the hard pipe more smoothly; when the second blocking plate covers the pipe opening of the discharge pipe, since the hard pipe abuts against one side of the workpiece, the air pressure in the hard pipe can be increased, so as to facilitate the metal inserts to be pressed into the mounting hole to realize the preliminary installation.

[0019] Optionally, the first baffle is located below the second baffle, and the air blowing pipe includes a first pipe, a second pipe and a third pipe connected in sequence. The first pipe is connected to an external air extraction device, and the third pipe is connected to the discharge pipe.

[0020] The second tube is provided with a fixing plate, the fixing plate having multiple through holes, and the outer peripheral wall of the second tube having a drive groove communicating with the interior. The drive groove extends around the outer peripheral side of the second tube, and the distance between the drive groove and the fixing plate increases along the axial direction of the second tube. A sliding plate is slidably installed inside the second tube, and a drive rod is provided on the outside of the sliding plate. The drive rod passes through the drive groove and is movably disposed in the drive groove. The drive rod is used to connect with the first baffle plate.

[0021] The sliding plate has multiple through holes. When the first baffle plate covers the opening of the feed pipe, the fixing plate and the sliding plate abut against each other, and the first and second through holes are misaligned.

[0022] By adopting the above technical solution, when the first baffle plate closes the opening of the feed pipe, the first through hole on the fixed plate and the second through hole on the sliding plate are misaligned, which can prevent airflow from being blown into the feed pipe.

[0023] During the opening of the first baffle plate, the first baffle plate pushes the drive rod connected to itself to slide along the drive groove, causing the sliding plate to move inside the second tube, thereby gradually aligning the first through hole and the second through hole, allowing airflow to be blown into the feeding pipe through the second tube and the third tube in sequence. This structure can avoid damage to the air extraction equipment caused by frequent opening and closing operations, and achieves stable material supply and airflow control coordination of the feeding mechanism.

[0024] Optionally, a sliding ring is slidably installed on the outer wall of the second pipe, the drive rod is slidably connected to the sliding ring, and the first baffle plate is connected to the sliding ring through a connecting plate; a sealing sleeve is sleeved on the outer wall of the second pipe, and the drive groove is located inside the sealing sleeve; the sealing sleeve is connected to the end of the feed pipe away from the rigid pipe through a connecting pipe.

[0025] By adopting the above technical solution, when the first through hole and the second through hole are misaligned, the airflow can flow out through the drive groove. After setting the sealing sleeve and connecting pipe, the connecting pipe can guide the airflow to the end of the feed pipe away from the rigid pipe, which plays an auxiliary feeding role and avoids the metal insert from getting stuck when it slides in the feed pipe by its own weight.

[0026] Optionally, the end of the rigid tube that abuts against the workpiece is provided with a rubber layer.

[0027] By adopting the technical scheme, the rubber layer is arranged at the end of the hard pipe for abutting against the workpiece, and the elasticity of the rubber layer can make the hard pipe better adhere to the workpiece, so that the airflow of the blowing pipe blows the metal insert into the mounting hole.

[0028] Optionally, the pressing mechanism comprises a pressing rod and a first air cylinder, the pressing rod is slidingly installed on the lifting seat, and an electric heating wire is arranged at the end of the pressing rod; and the first air cylinder is used to drive the pressing rod to slide.

[0029] By adopting the technical scheme, the first air cylinder drives the pressing rod to slide, so that the pressing rod can accurately reach the position of the metal insert for hot pressing operation; the electric heating wire arranged at the end of the pressing rod can heat the metal insert, so that the metal insert is better pressed into the mounting hole of the workpiece. In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. The lower end of the hard pipe directly abuts against the upper surface of the workpiece, forming a closed and straight vertical channel from the storage bin to the mounting hole. The blowing pipe is used to blow gas into the hard pipe, and the gas pressure is used to push the insert into the mounting hole. Finally, the insert can be tightly attached to the inner wall of the hole in a very correct state, improving the initial installation upright rate and avoiding the situation that the metal insert is installed obliquely.

[0031] 2. By arranging the blowing port between the two plug-in interfaces, the blowing pipe pushes the metal insert through the blowing port connected with the blanking pipe, so that the metal insert can more smoothly enter the hard pipe. When the second baffle plate covers the pipe opening of the blanking pipe, the gas pressure in the hard pipe can be increased due to the abutment of the hard pipe and the workpiece on one side, so that the metal insert can be pressed into the mounting hole to achieve preliminary installation. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural schematic diagram of embodiment 1;

[0033] Figure 2 is a structural schematic diagram of the hot pressing device of embodiment 1;

[0034] Figure 3 is a partial sectional view of the lifting seat of embodiment 1;

[0035] Figure 4 is a partial sectional view of the lifting seat of embodiment 2;

[0036] Figure 5 is a partial sectional view of the lifting seat of embodiment 3;

[0037] Figure 6 is a structural schematic diagram of the sliding plate of embodiment 3;

[0038] Figure 7 is a structural schematic diagram of the driving groove of embodiment 3;

[0039] Figure 8 is a structural schematic diagram of the cover of Embodiment 3.

[0040] Explanation of reference numerals: 1, workbench; 11, first linear drive mechanism; 12, first lead screw; 13, first sliding rail; 14, second motor; 2, horizontal sliding table; 21, quick clamp; 3, mounting frame; 31, second linear drive mechanism; 32, third linear drive mechanism; 4, hot-pressing device; 5, sliding seat; 6, lifting seat; 61, sliding groove; 62, rotating groove; 63, movable hole; 64, connecting hole; 65, connecting rod; 7, blanking mechanism; 71, blanking pipe; 711, plug-in port; 712, air blowing port; 713, cover; 714, air outlet; 72, hard pipe; 73, air blowing pipe; 74, first pipe; 75, second pipe; 751, fixing plate; 752, first through hole; 753, sliding plate; 754, second through hole; 755, drive groove; 756, drive rod; 757, sliding ring; 758, rotating ring groove; 76, third pipe; 77, sealing sleeve; 771, mounting hole; 78, connecting pipe; 8, material blocking mechanism; 81, first material blocking plate; 82, second material blocking plate; 83, drive structure; 84, gear; 85, rack; 86, first motor; 87, first air bag; 88, second air bag; 881, spring; 89, drive piece; 9, hot-pressing mechanism; 91, downward pressing rod; 92, first air cylinder. DETAILED DESCRIPTION

[0041] The following will be described in detail below with reference to the accompanying drawings. Figures 1-8 The application is further described in detail.

[0042] Embodiment 1

[0043] The embodiment of the application discloses an automatic blanking and hot-pressing tool for nut mounting, which is used for hot-pressing a metal insert with a TV set rear cover. The TV set rear cover is a square frame with a hollow structure in the middle. A plurality of mounting holes 771 for mounting the metal insert are arranged at the edge of the rear cover.

[0044] Reference will be made to Figure 1 The automatic blanking and hot-pressing tool for nut mounting comprises a workbench 1, a horizontal sliding table 2, a mounting frame 3 and a hot-pressing device 4. The horizontal sliding table 2 is installed on the workbench 1 through a first linear drive mechanism 11 and can move horizontally on the workbench 1. The workbench 1 is provided with a mounting station for inserting the rear cover. The workbench 1 is provided with a quick clamp 21 which is used for abutting against the upper surface of the rear cover to avoid the movement between the rear cover and the workbench 1 during the hot-pressing process, thereby ensuring the stability during the hot-pressing process.

[0045] The first linear driving mechanism 11 comprises a first screw rod 12, a first sliding rail 13 and a second motor 14. The first sliding rail 13 is provided with two groups, and the two groups of first sliding rails 13 are installed on the upper surface of the workbench 1. The horizontal sliding table 2 is in sliding connection with the two first sliding rails 13. The first screw rod 12 is rotatably installed on the workbench 1. The second motor 14 is used for driving the first screw rod 12 to rotate. The horizontal sliding table 2 is provided with a first sliding block at the bottom. The first sliding block is provided with a first threaded hole matched with the screw rod. By driving the screw rod to rotate, the horizontal sliding table 2 can slide on the sliding rail, so as to adjust the position of the workpiece in the first direction.

[0046] The mounting frame 3 is installed on the workbench 1 and is used for erecting the hot-pressing device 4 above the workbench 1. The hot-pressing device 4 comprises a sliding seat 5, a lifting seat 6, a blanking mechanism 7, a material blocking mechanism 8 and a hot-pressing mechanism 9 installed on the lifting seat 6. The sliding seat 5 is installed on the mounting frame 3 through a second linear driving mechanism 31. The second linear driving mechanism 31 is the same as the first linear driving mechanism 11, and will not be described here. It should be noted that the driving direction of the first linear driving mechanism 11 is perpendicular to the driving direction of the second linear driving mechanism 31. The third linear driving mechanism 32 is a second air cylinder. The second air cylinder is installed on the sliding seat 5 and is used for driving the lifting seat 6 to move vertically.

[0047] The movement of the horizontal sliding table 2, the sliding seat 5 and the lifting seat 6 is respectively controlled by the three linear driving mechanisms. The position adjustment of the hot-pressing device 4 in multiple directions is realized, which can adapt to the position requirements of different workpieces and mounting holes 771.

[0048] With reference to Figure 2 , the hot-pressing mechanism 9 comprises a pressing rod 91, a first air cylinder 92 and an electric heating wire. The pressing rod 91 is vertically and slidably installed on the lifting seat 6. The electric heating wire is installed at the end of the pressing rod 91 away from the lifting seat 6 and is used for heating the tightly bundled insert, so as to facilitate the pressing of the metal insert into the mounting hole 771 of the workpiece. The first air cylinder 92 is installed on the lifting seat 6 and is used for driving the pressing rod 91 to slide.

[0049] With reference to Figure 3 , the blanking mechanism 7 comprises a blanking pipe 71, a hard pipe 72 and a blowing pipe 73. The blanking pipe 71 and the hard pipe 72 are made of metal or hard plastic and have an inner diameter matched with the metal insert. The blanking pipe 71 and the hard pipe 72 are both vertically installed on the lifting seat 6 and are in communication. The blanking pipe 71 is used for storing a plurality of metal inserts. The hard pipe 72 is used for abutting against the upper surface of the workpiece and is used for transferring the metal insert stored in the blanking pipe 71 into the mounting hole 771. It should be noted that when the hard pipe 72 abuts against the upper surface of the workpiece, in order to avoid the pressing rod 91 from contacting the upper surface of the workpiece, the first air cylinder 92 is used to drive the lower end surface of the pressing rod 91 to be higher than the lower end surface of the hard pipe 72.

[0050] The blowing pipe 73 is installed on the lifting seat 6, one end of the blowing pipe 73 is connected with the external air exhaust equipment; the discharging pipe 71 is provided with a blowing opening, the other end of the blowing pipe 73 is communicated with the discharging pipe 71 through the blowing opening, and is used for blowing air into the hard pipe 72.

[0051] In the embodiment, the lower end surface of the hard pipe 72 is provided with a rubber layer, which can increase the sealing performance of the hard pipe 72 after abutting against the workpiece, and avoid air blowing out from the gap between the hard pipe 72 and the workpiece.

[0052] The material blocking mechanism 8 is used for making the metal inserts enter the hard pipe 72 one by one, the material blocking mechanism 8 includes a first blocking plate 81, a second blocking plate 82 and a driving structure 83, the first blocking plate 81 and the second blocking plate 82 are rectangular metal plates with smooth surfaces; the lifting seat 6 is provided with two sliding grooves 61, the first blocking plate 81 and the second blocking plate 82 are respectively slidably installed in the two sliding grooves 61, and the first blocking plate 81 is located below the second blocking plate 82; the discharging pipe 71 is provided with two plug-in openings 711 for communicating with the two sliding grooves 61, the distance between the two plug-in openings 711 is the same as the length of the metal insert; the driving structure 83 is used for driving the first blocking plate 81 and the second blocking plate 82 to be respectively plugged into the two plug-in openings 711, when the blocking plate is plugged into the plug-in opening 711, the blocking plate covers the pipe opening of the discharging pipe 71.

[0053] In the embodiment, the driving structure 83 includes a gear 84, a first motor 86 and two racks 85, the lifting seat 6 is provided with a rotating groove 62, and the two sliding grooves 61 are communicated with the rotating groove 62; the gear 84 is rotatably installed in the rotating groove 62, the first motor 86 is installed on the lifting seat 6 and is used for driving the gear 84 to rotate; the two racks 85 are respectively installed in the two sliding grooves 61 and are respectively connected with the first blocking plate 81 and the second blocking plate 82, and the two racks 85 are engaged with the gear 84.

[0054] The first motor 86 drives the gear 84 to rotate, since the two racks 85 are respectively installed on the first blocking plate 81 and the second blocking plate 82 and are engaged with the gear 84, when the gear 84 rotates, one blocking plate can move towards one side of the discharging pipe 71, and the other blocking plate can move away from the other side of the discharging pipe 71.

[0055] The specific use mode of the material blocking structure is as follows: when the second blocking plate 82 is opened and the first blocking plate 81 is closed, the metal insert enters between the first blocking plate 81 and the second blocking plate 82; then the second blocking plate 82 is closed and the first blocking plate 81 is opened, the metal insert located between the first blocking plate 81 and the second blocking plate 82 falls into the mounting hole 771 of the workpiece through the hard pipe 72, the number of the metal inserts falling is accurately controlled, and the mess caused by multiple metal inserts falling at the same time is avoided.

[0056] It should be noted that the blowing port is located between the two insertion interfaces 711; then in the process of the metal insert falling into the hard tube 72, the blowing tube 73 blows air to assist the metal insert into the hard tube 72 and fall into the mounting hole 771 of the workpiece.

[0057] The implementation principle of the embodiment 1 of the present application is as follows:

[0058] Through the cooperative action of the first linear driving mechanism 11, the second linear driving mechanism 31 and the third linear driving mechanism 32, the lower end of the hard tube 72 can be directly abutted with the upper surface of the workpiece, forming a closed and straight vertical channel from the storage bin to the mounting hole 771. The blowing tube 73 is used to blow air to the hard tube 72, and the metal insert is pushed into the mounting hole 771 by the gas pressure; finally, the metal insert can be closely attached to the inner wall of the hole in a very correct state, improving the initial installation upright rate. Then the lifting seat 6 is driven to lift and adjust the position, so that the lower pressing rod 91 is arranged opposite to the metal insert, and the first air cylinder 92 is used to drive the lower pressing rod 91 to move vertically downward to heat press the metal insert, thereby avoiding the situation that the metal insert is inclined during heat pressing, and reducing the workpiece rejection rate.

[0059] Embodiment 2

[0060] The embodiment of the present application discloses an automatic blanking and heat pressing tool for nut installation.

[0061] With reference to Figure 4 , the difference between the embodiment 2 and the embodiment 1 of the present application is that the driving structure 83 includes a first air bag 87, a second air bag 88 connected with the first air bag 87 and a driving piece 89. The first air bag 87 and the second air bag 88 are generally made of elastic materials such as rubber, and have good elasticity and sealing performance. The first air bag 87 and the second air bag 88 are respectively installed in the two sliding grooves 61. The first air bag 87 is connected with the first blocking plate 81, and the second air bag 88 is connected with the second blocking plate 82.

[0062] In the embodiment, the second air bag 88 is provided with a spring 881, and the elastic force of the spring 881 drives the second air bag 88 to be in a compressed state. At this time, the first air bag 87 is in an expanded state, and the first blocking plate 81 is inserted into the insertion interface 711.

[0063] The driving piece 89 can be a small electric push rod, and the driving piece 89 is installed on the outer circumferential side of the lifting seat 6. The lifting seat 6 is provided with a movable hole 63, and the piston rod of the driving piece 89 is arranged in the movable hole 63 and connected with the first blocking plate 81.

[0064] The implementation principle of the embodiment 2 of the present application is as follows:

[0065] The driving member 89 pushes the first material blocking plate 81, so that the first air bag 87 is deformed, and the gas flows between the air bags to drive the second material blocking plate 82 to move. The elasticity of the air bag and the transmission of the gas are used to control the action of the material blocking plate, so that the complex mechanical transmission of the traditional gear 84 and the rack 85 is avoided, the probability of failure is reduced, the reliability and stability of the equipment are improved, and the production cost is reduced.

[0066] Embodiment 3:

[0067] The embodiment of the application discloses an automatic unloading and hot pressing tool for nut installation.

[0068] With reference to Figure 5 , the difference between the embodiment 3 and the embodiment 2 is that the first material blocking plate 81 is located below the second material blocking plate 82, the blowing pipe 73 comprises the first pipe 74, the second pipe 75 and the third pipe 76 connected in sequence, the first pipe 74 is connected with the external air extraction equipment, the third pipe 76 is in communication with the unloading pipe 71, and the inner diameter of the second pipe 75 is greater than that of the third pipe 76; in the embodiment, the second pipe 75 and the third pipe 76 can be made of hard plastic, and the first pipe 74 can be a hose, so as to connect the first pipe 74 with the air extraction equipment.

[0069] With reference to Figure 6 and Figure 7 , the second pipe 75 is provided with the fixed plate 751, the fixed plate 751 is provided with a plurality of first through holes 752, the second pipe 75 is slidably installed with the sliding plate 753, the sliding plate 753 is provided with a plurality of second through holes 754, the outer wall of the second pipe 75 is provided with the driving groove 755 in communication with the inside, the driving groove 755 extends around the outer circumferential side of the second pipe 75, and the distance between the driving groove 755 and the fixed plate 751 gradually increases along the axis direction of the second pipe 75; the outer side of the sliding plate 753 is provided with the driving rod 756, the driving rod 756 is conveyed in the driving groove 755 and movably arranged in the driving groove 755.

[0070] With reference to Figure 6 , the outer wall of the second pipe 75 is provided with the sliding ring 757, the inner wall of the sliding ring 757 is provided with the rotating ring groove 758, one end of the driving rod 756 away from the sliding plate 753 is movably installed in the rotating groove 62; the outer wall of the lifting seat 6 is provided with the connecting hole 64 in communication with the sliding groove 61; the connecting rod 65 is movably installed in the connecting hole 64, and the connecting rod 65 is used for connecting the first material blocking plate 81 and the sliding ring 757.

[0071] When the first baffle 81 closes the pipe opening of the second pipe 71, the first through hole 752 on the fixed plate 751 is misaligned with the second through hole 754 on the sliding plate 753, so that the airflow is prevented from blowing into the second pipe 71; during the opening process of the first baffle 81, the first baffle 81 pushes the driving rod 756 connected thereto to slide along the driving groove 755, so that the sliding plate 753 moves in the second pipe 75, and then the first through hole 752 and the second through hole 754 are gradually aligned, so that the airflow can blow into the second pipe 71 through the second pipe 75 and the third pipe 76 in sequence. This structure can prevent the frequent opening and closing of the air extraction equipment from causing damage, and realizes the cooperation of stable feeding and airflow control of the feeding mechanism 7.

[0072] With reference to Figure 7 and Figure 8 In this embodiment, the outer wall of the second pipe 75 is sleeved with a sealing sleeve 77, and the inner cavity of the sealing sleeve 77 is in communication with the driving groove 755; the sealing sleeve 77 is provided with a mounting hole 771, the connecting rod 65 is arranged in the mounting hole 771 and connected with the sliding ring 757; the sealing sleeve 77 is provided with a connecting pipe 78, which is used to communicate with the feeding port of the second pipe 71.

[0073] When the first through hole 752 and the second through hole 754 are misaligned, the airflow can flow out through the driving groove 755. After the sealing sleeve 77 and the connecting pipe 78 are arranged, the connecting pipe 78 can guide the airflow to the end of the second pipe 71 away from the hard pipe 72, play a role in auxiliary feeding, and prevent the metal insert from being stuck when sliding in the second pipe 71 by gravity.

[0074] With reference to Figure 8 In addition, the feeding port of the feeding pipe is provided with a cover 713, and the cover 713 is threadedly connected with the feeding pipe 71; the cover is provided with an air outlet 714 to prevent the case where the air pressure in the feeding pipe 71 is too high.

[0075] The above is the preferred embodiment of the present application, which does not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An automatic blanking and hot-pressing tool for nut mounting, characterized by: The device includes a worktable (1), a horizontal slide (2), a mounting bracket (3), and a hot pressing device (4). The horizontal slide (2) is mounted on the worktable (1) via a first linear drive mechanism (11) for mounting workpieces. The mounting bracket (3) is mounted on the worktable (1). The hot pressing device (4) includes a sliding seat (5) mounted on the mounting bracket (3), a lifting seat (6) mounted on the sliding seat (5), and a feeding mechanism (7), a blocking mechanism (8), and a hot pressing mechanism (9) mounted on the lifting seat (6). The mounting bracket (3) is provided with a second linear drive mechanism (31) for driving the sliding seat (5) to slide. The sliding seat (5) is provided with a third linear drive mechanism (32) for driving the lifting seat (6) to slide; the unloading mechanism (7) includes an unloading pipe (71), a rigid pipe (72) provided at one end of the unloading pipe (71), and an air blowing pipe (73) for blowing air into the rigid pipe (72). The unloading pipe (71) and the rigid pipe (72) are both vertically installed on the lifting seat (6). One end of the air blowing pipe (73) is connected to an external air extraction device; the blocking mechanism (8) is used to allow the metal inserts to enter the rigid pipe (72) one by one. One end of the rigid pipe (72) is used to abut against the upper surface of the workpiece. The material blocking mechanism (8) includes a first material blocking plate (81), a second material blocking plate (82), and a drive structure (83). The lifting seat (6) has two sliding grooves (61). The first material blocking plate (81) and the second material blocking plate (82) are slidably installed in the two sliding grooves (61). The discharge pipe (71) has two insertion ports (711). The distance between the first material blocking plate (81) and the second material blocking plate (82) is adapted to the length of the metal insert. The drive structure (83) is used to drive the first material blocking plate (81) and the second material blocking plate (82) to be inserted into the two insertion ports (711) and cover the opening of the discharge pipe (71). The feeding pipe (71) has an air inlet (712) that communicates with the air blowing pipe (73), and the air inlet (712) is located between the two insertion ports (711); The first baffle plate (81) is located below the second baffle plate (82). The air blowing pipe (73) includes a first pipe (74), a second pipe (75) and a third pipe (76) connected in sequence. The first pipe (74) is connected to an external air extraction device, and the third pipe (76) is connected to the discharge pipe (71). The second pipe (75) is provided with a fixed plate (751) having a plurality of first through holes (752), and the outer wall of the second pipe (75) is provided with a driving groove (755) in communication with the inside, the driving groove (755) extends around the outer wall of the second pipe (75), and the distance between the driving groove (755) and the fixed plate (751) gradually increases along the axis direction of the second pipe (75); the second pipe (75) is slidably installed with a sliding plate (753), the outer side of the sliding plate (753) is provided with a driving rod (756), the driving rod (756) is arranged in the driving groove (755) and movably arranged in the driving groove (755), and the driving rod (756) is used for connecting with the first material blocking plate (81). The sliding plate (753) is provided with a plurality of second through holes (754), when the first material blocking plate (81) covers the pipe opening of the blanking pipe (71), the fixed plate (751) and the sliding plate (753) abut, and the first through hole (752) and the second through hole (754) are arranged in a staggered manner. The outer wall of the second pipe (75) is slidably installed with a sliding ring (757), the driving rod (756) is slidably connected with the sliding ring (757), the first material blocking plate (81) is connected with the sliding ring (757) through a connecting plate; the outer wall of the second pipe (75) is sleeved with a sealing sleeve (77), and the driving groove (755) is located in the sealing sleeve (77); the sealing sleeve (77) is connected with the end of the blanking pipe (71) away from the hard pipe (72) through a connecting pipe (78).

2. The automatic blanking and hot-pressing tool for nut mounting according to claim 1, characterized by: The driving structure (83) comprises a gear (84), a first motor (86) and two racks (85), the gear (84) is rotatably installed on the lifting seat (6), and the first motor (86) is used for driving the gear (84) to rotate; the two racks (85) are respectively installed on the two first material blocking plates (81) and the second material blocking plate (82), and the two racks (85) are engaged with the gear (84).

3. The automatic blanking and hot-pressing tool for nut mounting according to claim 1, characterized in that: The driving structure (83) comprises a first air bag (87), a second air bag (88) connected with the first air bag (87), and a driving member (89), the first air bag (87) and the second air bag (88) are respectively installed in the two sliding grooves (61), the first air bag (87) is connected with the first material blocking plate (81), the second air bag (88) is connected with the second material blocking plate (82), and the driving member (89) is used for driving the first material blocking plate (81) to slide.

4. The automatic blanking and hot-pressing tool for nut mounting according to claim 1, characterized by: The hard pipe (72) is provided with a rubber layer at one end abutting against the workpiece.

5. The automatic blanking and hot-pressing tool for nut mounting according to claim 1, characterized by: The hot pressing mechanism (9) comprises a pressing rod (91) and a first air cylinder (92), the pressing rod (91) is slidably installed on the lifting seat (6), and the end of the pressing rod (91) is provided with an electric heating wire; the first air cylinder (92) is used for driving the pressing rod (91) to slide.

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