A pipe joint riveting process and equipment

Abstract

The present invention relates to the technical field of evaporator accessory processing equipment, and in particular to a pipe joint riveting process and equipment, comprising a trolley, comprising an electric control box placed inside the trolley, a workbench with an open groove at the front end placed in the center of the upper surface of the trolley; and a high-temperature ventilation component, comprising an insulation box placed on one side above the electric control box, a mounting frame alternately installed inside the insulation box front and back in a horizontal direction, and a heating wire hoisted on the inner side of the insulation box, a heating plate is installed inside the mounting frame, and a fan is installed on one side of the insulation box; wherein, a dustproof window is provided on the outer wall of one side of the insulation box, an air outlet duct is provided at the center of the outer wall of the other side of the insulation box, the other end of the air outlet duct is connected to the air inlet end of the fan through a pipe joint, and the air outlet end of the fan is connected to the first connecting pipe through the pipe joint, and the pipe joint riveting equipment has higher efficiency and better safety in riveting operations.

Description

Technical Field

[0001] The invention relates to the technical field of evaporator accessory processing equipment, and in particular to a pipe joint riveting process and equipment. Background Art

[0002] The automotive air-conditioning evaporator is the core component of the air-conditioning box. Its function is to evaporate the low-pressure refrigerant coming out of the expansion valve and absorb the heat of the air in the car, so as to achieve the purpose of cooling the car. The evaporator core is divided into two parts, the core part and the core pipeline. The connection between the core part and the core pipeline part is usually welded, and the connection between the two joints is usually made of two stamping parts for diameter conversion. The two stamping parts need to be riveted first and then welded to the pipeline. The riveting of the stamping parts will directly affect the airtightness of the product welding and have a greater impact on the product.

[0003] The parts are used in the special structure of the current anti-flying water evaporator. The two stamping parts connecting the pipe and the water chamber are usually called pipe joints. There are many types of pipe joints according to the diameter of the core and the pipeline. The internal diameter changes from large to small, and from small to large. According to the current actual situation, this riveting device needs to be riveted from the inside and the position needs to be marked from the outside. For example, the existing public document CN114192727B-A casing riveting device discloses a device that can be used for riveting; and the existing public document CN220028564U-A ventilation duct riveting device discloses a device that can be used for pipe riveting;

[0004] Although the existing disclosed pipe joint riveting equipment can realize the riveting of pipe joints, there are still certain shortcomings in actual use: first, the existing pipe joint riveting equipment directly performs stamping and riveting on the two pipe joint stamping parts and the core double partition stamping parts during the stamping and riveting process of the two pipe joint stamping parts and the core double partition stamping parts. Since the two stamping parts are made of metal, they are subjected to greater force during the stamping process, resulting in a large hard contact force of the stamping parts, and cracks and breakages occur under the action of internal stress, affecting product quality; secondly, the workpieces of the existing pipe joint riveting equipment are butt-jointed up and down during actual use, so the staff needs to bend down to take out the two butt-jointed parts, which has high labor intensity, low work efficiency, and potential safety hazards; finally, the existing pipe joint riveting equipment lacks corresponding protective measures. If the two pipe joint stamping parts and the core double partition stamping parts are subjected to great force and contact and damage during the stamping process, fragments will pop out, causing damage to the personal safety of the surrounding staff; therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above-mentioned existing pipe joint riveting equipment directly punches and rivets the two types of pipe joint stamping parts and the core double partition stamping parts. Since the stamping parts are all made of metal, direct punching and riveting of the metal hard contact will cause cracks, breakage, etc., affecting the product quality, a pipe joint riveting equipment is proposed.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a pipe joint riveting equipment, comprising a trolley, comprising an electric control box placed inside the trolley, a workbench with an open groove at the front end placed in the center of the upper surface of the trolley; and a high-temperature ventilation component, comprising an insulation box placed on one side above the electric control box, an installation frame installed inside the insulation box alternately front and back in the horizontal direction, and a heating wire hoisted on the inner side of the insulation box, a heating plate is installed inside the installation frame, and a fan is installed on one side of the insulation box; wherein, a dustproof window is provided on the outer wall of one side of the insulation box, an air outlet duct is provided at the center of the outer wall of the other side of the insulation box, the other end of the air outlet duct is connected to the air inlet end of the fan through a pipe joint, and the air outlet end of the fan is connected to the first connecting pipe through the pipe joint.

[0008] The beneficial effects of the present invention are as follows: the air in the insulation box and the drawn air are heated by utilizing multiple heating plates and heating wires in the insulation box in the high-temperature ventilation assembly, wherein the air duct formed by the multiple heating plates being alternately arranged front and back is serpentine, which can improve the heating efficiency and effect of the drawn air, and then the fan blows the high-temperature air into the interior of the two pipe joint stampings to heat them, and utilizing the characteristic principle of thermal expansion and contraction of metals to increase the thermal expansion of the two pipe joint stampings by heating, thereby achieving the purpose of reducing the hardness of the metal in the ordinary hard riveting process, making it easier to realize the internal riveting operation of the two pipe joint stampings and the core double partition stampings, thereby improving work efficiency and product quality.

[0009] As a preferred solution of the pipe joint riveting equipment described in the present invention, a hydraulic assembly is arranged at the rear of the upper surface of the workbench, the hydraulic assembly includes a mounting frame and a first cylinder installed at the front end of the top thereof, a lifting plate is installed at the telescopic end of the first cylinder, a movable plate is slidably connected to the bottom center of the lifting plate, positioning pins are arranged at the front and rear ends of the bottom of the lifting plate, and the positioning pins penetrate the surface of the movable plate.

[0010] As a preferred solution of the pipe joint riveting equipment described in the present invention, external dotting components are arranged on both sides of the upper surface of the workbench, and the external dotting components include a second cylinder and a sliding seat installed at its telescopic end, and dotting rivet heads are arranged on the front and rear ends of the outer wall of the sliding seat.

[0011] As a preferred solution of the pipe joint riveting equipment described in the present invention, a partition height limit assembly is arranged in the middle of the rear end of the upper surface of the workbench, the partition height limit assembly includes a third cylinder and a movable platform installed at its telescopic end, and a limiting plate is installed at the center position of the front end face of the movable platform.

[0012] As a preferred solution of the pipe joint riveting equipment described in the present invention, an internal riveting assembly is arranged at the bottom center position of the workbench, the internal riveting assembly includes a bracket installed at the top end of the trolley and a fourth cylinder installed at the bottom of the bracket, a lifting seat is installed at the telescopic end of the fourth cylinder, and six-petal internal riveting joints are installed through the front and rear ends of the interior of the lifting seat, air inlet pipes are arranged at the front and rear ends of the bottom of the lifting seat, a driving block is movably arranged on the upper surface of the lifting seat, and a moving seat is installed on the top of the driving block; wherein the top end of the six-petal internal riveting joint passes through the internal through holes of the driving block and the moving seat in turn, the six-petal internal riveting joint is arranged one-to-one with the air inlet pipe, the other end of the air inlet pipe is connected to the first connecting pipe through a pipe joint, magnetic blocks are embedded in the middle of the front and rear end faces of the driving block, placement grooves are symmetrically arranged at the front and rear ends of the upper surface of the moving seat, and the placement grooves are arranged one-to-one with the six-petal internal riveting joints, and L-shaped through grooves are opened on both sides of the interior of the moving seat.

[0013] In view of the fact that the existing pipe joint riveting equipment requires manual loading and unloading under the punching mechanism during actual use, which has the problems of high labor intensity and potential safety hazards, a further improvement of the pipe joint riveting equipment is proposed.

[0014] As a preferred solution of a pipe joint riveting equipment of the present invention, it also includes a driving assembly arranged inside the open groove, the driving assembly includes a driving rail and a front end plate and a rear end plate fixedly installed at the front and rear ends thereof, electromagnetic plates are embedded in the bottom of the relative end surfaces of the front end plate and the rear end plate, and plug rods are fixedly connected on both sides of the upper inner wall of the front end plate; wherein the plug rods are arranged one by one corresponding to the L-shaped through grooves, and the driving rail is slidably connected to the driving block located inside it.

[0015] As a preferred solution of the pipe joint riveting equipment described in the present invention, wherein: a self-top component is arranged inside the L-shaped through groove, the self-top component includes a top plate and a telescopic cylinder installed at the two side edges of the bottom thereof, the air port at the bottom of the outer wall of one side of the telescopic cylinder is connected to the second connecting pipe through a pipe joint, the other end of the second connecting pipe is connected to the air port on the end face of one side of the first air cylinder through the pipe joint, a first rubber plug is arranged on one side of the interior of the first air cylinder, and a first tension spring is installed on the outer side wall of the first rubber plug; wherein the other end of the first tension spring is fixed on the inner wall of one side of the first air cylinder, the telescopic cylinder is installed at the vertical section of the L-shaped through groove, the first air cylinder is installed at the horizontal section of the L-shaped through groove, and a through hole is opened at the center position of the outer wall of the first air cylinder, so that the rod can be inserted to push the first rubber plug to move and squeeze the air inside the first air cylinder.

[0016] Another beneficial effect of the present invention is that under the corresponding magnetic action on the two groups of electromagnetic plates and the driving block in the driving assembly, the driving block can be moved along the driving rail to adjust its position, so as to achieve the purpose of moving the moving seat to the outer end of the driving rail, so as to facilitate the loading and unloading operations of the staff, and the safety is high. At the same time, the rod on the front end plate cooperates with the first rubber plug to press the air inside the first air cylinder into the two groups of telescopic cylinders, thereby pushing the top plate up and automatically ejecting the riveted workpiece. Since the two pipe joint stampings and the core double partition stampings are butt-jointed up and down, there is no need for the staff to bend down to take out the high-temperature workpiece after stamping and riveting, which reduces labor intensity, has high work efficiency and high safety.

[0017] In view of the fact that the existing pipe joint riveting equipment lacks corresponding protective measures during use, which poses a potential safety hazard to the surrounding workers, a further improvement of the pipe joint riveting equipment is proposed.

[0018] As a preferred solution of a pipe joint riveting equipment of the present invention, it also includes a protective component arranged on the outside of the movable plate, the protective component includes an outer sleeve plate and a sliding guard plate sealingly and slidably connected inside the outer sleeve plate, the top of the sliding guard plate is evenly installed with second tension springs at intervals in the horizontal direction, the top of the second tension spring is installed at the inner top of the outer sleeve plate, a first air pipe is arranged at the top center position of the outer sleeve plate, and the other end of the first air pipe is connected to the third connecting pipe through a pipe joint.

[0019] As a preferred solution of the pipe joint riveting equipment described in the present invention, the other end of the third connecting pipe is connected to the second air pipe through a pipe joint, the other end of the second air pipe is arranged at the bottom of the outer wall of one side of the second air cylinder, a second rubber plug is arranged inside the second air cylinder, a push rod is installed at the top center position of the second rubber plug, the top end of the push rod passes through the through hole at the top of the second air cylinder, the through holes on the trolley and the workbench in sequence and is connected to the connecting plate; wherein the bottom of the rear end face of the outer sleeve plate is fixed to the front end face of the movable plate, and the front end face of the connecting plate is fixed to one side of the rear end face of the movable plate.

[0020] Another beneficial effect of the present invention is: through the protective assembly, the lifting plate moves downward during the riveting operation, driving the outer plate and the connecting plate downward, and then in conjunction with the push rod and the second rubber plug, the air inside the second air cylinder can be pressed into the outer plate. As the internal air pressure increases, the sliding guard plate inside it will continue to move downward and stretch the second tension spring. At this time, the sliding guard plate will block the outside of the two pipe fitting stampings and the core double partition stampings, thereby protecting the surrounding staff and preventing the stampings from breaking and jumping out to injure the surrounding staff during the internal riveting process.

[0021] In addition, the present invention also provides the following technical solution: a pipe joint riveting process, specifically comprising the following steps;

[0022] S1: First, place the two pipe joint stampings in the placement groove on the surface of the moving seat in sequence, then stack the core double partition stampings on top of the two pipe joint stampings, then the second cylinder pushes the dot rivet head on the sliding seat to move, and limit the front and rear four points on both sides of the two pipe joint stampings;

[0023] S2: According to S1, the third cylinder then pushes the limit plate on the moving table to limit the riveting height position of the two parts, and at the same time the fourth cylinder pushes the lifting seat and the two sets of six-petal internal riveting heads inside it to rise and insert them into the bottom of the two pipe joint stamping parts;

[0024] S3: According to S2, finally the lifting plate is pushed by the first cylinder, and riveting is completed with the cooperation of the positioning pins and two sets of six-petal internal riveting heads;

[0025] S4: According to S3, during the riveting process, the fan draws high-temperature air heated by the heating plate and the heating wire into the two pipe joint stampings to increase the temperature of the two pipe joint stampings;

[0026] S5: According to S3, during the riveting process, when the lifting plate descends, the sliding guard plate inside the outer outer plate will descend synchronously and block the outside of the riveted workpiece;

[0027] S6: After the workpiece is riveted, the driving block slides to the outside along the driving rail with the moving seat, and the top plate automatically rises to eject the riveted workpiece above. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0029] Figure 1 The overall structure of the pipe joint riveting equipment in the present invention is shown in FIG. Figure 1 .

[0030] Figure 2 The overall structure of the pipe joint riveting equipment in the present invention is shown in FIG. Figure 2 .

[0031] Figure 3 It is a structural schematic diagram of the workbench in the present invention.

[0032] Figure 4 It is a schematic diagram of the overall structure of the hydraulic assembly in the present invention.

[0033] Figure 5 It is a schematic diagram of the overall structure of the external dotting component in the present invention.

[0034] Figure 6 It is a schematic diagram of the overall structure of the partition height limiting assembly of the present invention.

[0035] Figure 7 It is a schematic diagram of disassembly of the internal riveted components in the present invention.

[0036] Figure 8 It is a schematic diagram of the overall structure of the high temperature ventilation component in the present invention.

[0037] Fig. 9 For the present invention Figure 8 Horizontal section view of the insulated box in the structure.

[0038] Fig.10 It is a schematic diagram of the overall structure of the driving component in the present invention.

[0039] Fig.11 For the present invention Figure 7 Vertical section view of the mobile seat in the structure.

[0040] Fig.12 It is a schematic diagram of disassembly of the self-lifting assembly in the present invention.

[0041] Fig.13 It is a schematic diagram of the overall structure of the protection component in the present invention.

[0042] Fig.14 For the present invention Fig.13 Vertical section view of the outer jacket plate in the structure.

[0043] Fig.15 For the present invention Fig.13 Vertical cross-section of the second gas cylinder in the structure. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0046] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0047] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example 1

[0048] Reference Figure 1 , Figure 2 , Figure 3 , Figure 8 and Fig. 9 , which is the first embodiment of the present invention, provides a pipe joint riveting equipment, which increases the temperature of the two pipe joints through the high-temperature ventilation component 600, utilizes the characteristics of metal thermal expansion and contraction, and reduces the hardness of the metal in the ordinary hard pressure riveting process, making it easier to perform internal riveting operations, thereby improving work efficiency and product quality.

[0049] Specifically, it includes a trolley 100, including an electric control box 101 placed inside the trolley 100, a workbench 102 with an open groove 102a at the front end is placed in the center of the upper surface of the trolley 100; and a high-temperature ventilation component 600, including an insulation box 601 placed on one side above the electric control box 101, a mounting frame 604 alternately installed inside the insulation box 601 in the horizontal direction, and a heating wire 603 hoisted on the inner side of the insulation box 601, a heating plate 604a is installed inside the mounting frame 604, and a fan 602 is installed on one side of the insulation box 601; wherein, a dustproof window is provided on the outer wall of one side of the insulation box 601, an air outlet duct 601a is provided at the center of the outer wall of the other side of the insulation box 601, the other end of the air outlet duct 601a is connected to the air inlet end of the fan 602 through a pipe joint, and the air outlet end of the fan 602 is connected to the first connecting pipe 602a through a pipe joint.

[0050] When the above arrangement is used, during the riveting process of the two kinds of pipe joint stampings and the core body double partition stampings, first, the multiple heating plates 604a and the heating wires 603 in the heat preservation box 601 are used to heat the air in the heat preservation box 601 and the air drawn in, wherein the multiple heating plates 604a are located inside the installation frame 604 and are arranged alternately front and back, and the formed air duct is serpentine, which can improve the heating efficiency and effect of the drawn air, and then the fan 602 is started, and the fan 602 runs to draw the hot air in the heat preservation box 601 through the air outlet pipe 601a, and then enters the front and rear two groups of air inlet pipes 504 respectively through the first connecting pipe 602a. Internally, since the air inlet pipes 504 are arranged one by one below the six-petal internal riveted joints 503a, the hot air exhausted by the air inlet pipes 504 will flow into the two groups of six-petal internal riveted joints 503a, and after overflowing the six-petal internal riveted joints 503a, it can heat the two pipe joint stampings on the upper outside. By utilizing the characteristic principle of metal thermal expansion and contraction, the thermal expansion of the two pipe joint stampings is increased by heating, thereby achieving the purpose of reducing the metal hardness existing in the ordinary hard riveting process, and making it easier to realize the internal riveting operation of the two pipe joint stampings and the core double partition stampings, thereby improving work efficiency and product quality.

[0051] Furthermore, the insulation box 601 can keep the high-temperature air inside it warm, and at the same time can prevent the high temperature from affecting surrounding equipment or causing burns. The heating plate 604a is installed inside the installation frame 604, and multiple heating plates are alternately arranged front and back to form a serpentine air duct to speed up the increase in the temperature of the drawn-in external air, and the pipe joints play the role of connecting the pipelines.

[0052] Read in detail Figure 3 and Figure 4As shown, a hydraulic assembly 200 is arranged at the rear of the upper surface of the workbench 102, and the hydraulic assembly 200 includes a mounting frame 201 and a first cylinder 202 installed at the top front end thereof, a lifting plate 203 is installed at the telescopic end of the first cylinder 202, and a moving plate 204 is slidably connected to the bottom center position of the lifting plate 203, and positioning pins 204a are arranged at the front and rear ends of the bottom of the lifting plate 203, and the positioning pins 204a penetrate the surface of the moving plate 204.

[0053] When the above arrangement is in use, the first cylinder 202 is started, and the telescopic end of the first cylinder 202 extends to push the lifting plate 203 downward, so that the movable plate 204 below the lifting plate 203 first contacts the upper core double partition stamping part. Since the movable plate 204 is slidably connected at the bottom of the lifting plate 203, the movable plate 204 will move up after contact, and make the two groups of positioning pins 204a at the bottom of the lifting plate 203 press against the through holes of the two pipe joint stamping parts and the core double partition stamping parts. As the first cylinder 202 continues to press downward, the upper core double partition stamping part will be pushed downward and pressed and riveted to the inside of the two pipe joint stamping parts under the cooperation of external components, so as to achieve the purpose of riveting from the inside, thereby completing the riveting of the two pipe joint stamping parts and the core double partition stamping parts.

[0054] Read in detail Figure 3 and Figure 5 As shown, external dotting components 300 are provided on both sides of the upper surface of the workbench 102. The external dotting components 300 include a second cylinder 301 and a sliding seat 302 installed at its telescopic end. The outer wall of the sliding seat 302 is provided with dotting rivet heads 302a at both ends.

[0055] When the above arrangement is in use, the two pipe fitting stampings are located inside the two placement grooves 506a on the movable seat 506, and then the core double partition stampings that need to be riveted are placed correspondingly on the top of the two pipe fitting stampings, and then the second cylinder 301 in the external dotting assemblies 300 on both sides is started first, and the telescopic end of the second cylinder 301 pushes the corresponding sliding seats 302 on both sides and the dotting rivet heads 302a on the inner walls thereof to move toward the middle, and under the action of the four groups of dotting rivet heads 302a on the front and rear sides, the three parts can be fixed, and at the same time, the three parts are riveted and fixed at a certain height during the riveting process.

[0056] Read in detail Figure 3 and Figure 6 As shown, a partition height limiting assembly 400 is provided in the middle of the rear end of the upper surface of the workbench 102. The partition height limiting assembly 400 includes a third cylinder 401 and a movable platform 402 installed at its telescopic end. A limiting plate 403 is installed at the center position of the front end surface of the movable platform 402.

[0057] When the above arrangement is in use, the third cylinder 401 is started, and the telescopic end of the third cylinder 401 extends to push the movable platform 402 to move forward close to the stamping part, and moves to the bottom of the core double partition stamping part, so that the riveting height position can be limited during the riveting process of the three parts.

[0058] Read in detail Figure 3 , Figure 7 and Fig.11 As shown, an internal riveting assembly 500 is arranged at the bottom center of the workbench 102, and the internal riveting assembly 500 includes a bracket 501 installed at the top of the inside of the trolley 100 and a fourth cylinder 502 installed at the bottom of the bracket 501, and a lifting seat 503 is installed at the telescopic end of the fourth cylinder 502, and six-petal internal riveting joints 503a are installed through the front and rear ends of the lifting seat 503, and air inlet pipes 504 are arranged at the front and rear ends of the bottom of the lifting seat 503, and a driving block 505 is movably arranged on the upper surface of the lifting seat 503, and a moving seat 506 is installed on the top of the driving block 505; In the figure, the top of the six-petal internal riveted joint 503a passes through the internal through holes of the driving block 505 and the movable seat 506 in sequence, the six-petal internal riveted joint 503a is arranged one-to-one with the air inlet pipe 504, the other end of the air inlet pipe 504 is connected to the first connecting pipe 602a through a pipe joint, and magnetic blocks 505a are embedded in the middle of the front and rear end faces of the driving block 505, and placement grooves 506a are symmetrically arranged at the front and rear ends of the upper surface of the movable seat 506, and the placement grooves 506a are arranged one-to-one with the six-petal internal riveted joint 503a, and L-shaped through grooves 506b are opened on both sides of the interior of the movable seat 506.

[0059] When the above arrangement is in use, the fourth cylinder 502 is started, and the telescopic end of the fourth cylinder 502 extends to push the upper lifting seat 503 to rise, and causes the front and rear groups of six-petal internal rivet joints 503a inside it to move up, and pass through the internal through holes of the driving block 505 and the moving seat 506 in turn, and then press against the inner bottom of the two pipe joints. Example 2

[0060] Reference Figure 3 and Fig.10 , which is the second embodiment of the present invention, is based on the previous embodiment, except that, in order to improve the safety during loading and unloading, two sets of electromagnetic plates 702a and magnetic blocks 505a are used to cooperate with each other to make the driving block 505 move inside the driving rail 701, thereby reducing safety hazards.

[0061] Specifically, it also includes a driving component 700 arranged inside the opening groove 102a, and the driving component 700 includes a driving rail 701 and a front end plate 702 and a rear end plate 703 fixedly installed at the front and rear ends thereof, and the bottom of the opposite end surfaces of the front end plate 702 and the rear end plate 703 are embedded with electromagnetic plates 702a, and both sides of the upper inner wall of the front end plate 702 are fixedly connected with insertion rods 702b; wherein, the insertion rods 702b are arranged one by one corresponding to the L-shaped through grooves 506b, and the driving rail 701 is slidably connected to the driving block 505 located inside it.

[0062] When the above arrangement is in use, after the two types of pipe fitting stampings and the core double partition stampings are riveted, the electromagnetic plates 702a in the front end plate 702 and the rear end plate 703 are energized, and the magnetic poles of the front and rear groups of electromagnetic plates 702a are changed, so that the electromagnetic plate 702a on the front end plate 702 produces magnetic attraction to the magnetic block 505a on the front end surface of the driving block 505, and the electromagnetic plate 702a on the rear end plate 703 produces magnetic repulsion to the magnetic block 505a on the rear end surface of the driving block 505, so that the driving block 505 can be moved along the driving rail 701 to adjust its position, so as to achieve the purpose of moving the movable seat 506 to the outer end of the driving rail 701. Similarly, the driving block 505 and the movable seat 506 can be moved to the inside of the workbench 102 for operation, so as to facilitate the loading and unloading operations of the staff, and with high safety.

[0063] Furthermore, electromagnetic plates 702a are embedded on both the front end plate 702 and the rear end plate 703, and are respectively arranged corresponding to the magnetic blocks 505a on the front and rear end surfaces of the driving block 505. By changing the magnetic poles of the two sets of electromagnetic plates 702a, attraction and repulsion with the corresponding magnetic blocks 505a are achieved, thereby achieving the purpose of sliding and adjusting the position of the driving block 505 inside the driving rail 701. Example 3

[0064] Reference Figure 7 , Fig.11 and Fig.12 , which is the third embodiment of the present invention, is based on any of the above embodiments, except that, in order to improve the efficiency of unloading after riveting, a liftable top plate 801 is used to realize automatic unloading of the workpiece after riveting.

[0065] Specifically, a self-lifting assembly 800 is arranged inside the L-shaped through groove 506b, and the self-lifting assembly 800 includes a top plate 801 and a telescopic cylinder 802 installed at the two side edges of the bottom thereof, the air port at the bottom of the outer wall on one side of the telescopic cylinder 802 is connected to the second connecting pipe 803 through a pipe joint, and the other end of the second connecting pipe 803 is connected to the air port on the end face of one side of the first air cylinder 804 through a pipe joint, and a first rubber plug 805 is arranged on one side of the interior of the first air cylinder 804, and a first tension spring 806 is installed on the outer wall of the first rubber plug 805; wherein, the other end of the first tension spring 806 is fixed on the inner wall of one side of the first air cylinder 804, the telescopic cylinder 802 is installed at the vertical section of the L-shaped through groove 506b, and the first air cylinder 804 is installed at the horizontal section of the L-shaped through groove 506b, and a through hole is opened at the center position of the outer wall of the first air cylinder 804, so that the insertion rod 702b can be inserted to push the first rubber plug 805 to move and squeeze the air inside the first air cylinder 804.

[0066] When the above arrangement is in use, when the driving block 505 drives the moving seat 506 to move to the outermost side of the driving rail 701, the two groups of insertion rods 702b on the front end plate 702 will be respectively inserted into the corresponding first air cylinder 804, and push the first rubber plug 805 inside the first air cylinder 804 to move, and at the same time stretch the first tension spring 806. As the first rubber plug 805 moves, the air inside the first air cylinder 804 will be squeezed, and the air will enter the corresponding two groups of telescopic cylinders 802 through the second connecting pipe 803. The two groups of telescopic cylinders 802 will extend under the action of air pressure and push the upper top plate 801 to move upward. Under the action of the top plate 801, the riveted workpiece can be automatically ejected. Since the two types of pipe joint stampings and the core double partition stampings are butt-jointed up and down, there is no need for staff to bend down to take out the high-temperature workpiece after stamping and riveting, which reduces labor intensity, has high work efficiency and high safety.

[0067] Furthermore, after loading, the movable seat 506 returns to the riveting operation position under the action of the driving block 505. During this process, the insertion rod 702b will move out of the corresponding first air cylinder 804. At this time, the external force of the first rubber plug 805 disappears, and it will be driven to move outward under the tension of the first tension spring 806, and the air inside the corresponding telescopic cylinder 802 will be re-drawn into the first air cylinder 804 through the second connecting pipe 803, so that the top plate 801 returns to its initial state. Example 4

[0068] Reference Figure 3 , Fig.13 , Fig.14 and Fig.15 , which is the fourth embodiment of the present invention, is based on the previous embodiment, but differs in that, in order to ensure the health and safety of surrounding workers, a sliding guard plate 902 is used to block the outside of the riveting operation site to play a protective role.

[0069] Specifically, it also includes a protective assembly 900 arranged on the outside of the movable plate 204, the protective assembly 900 includes an outer plate 901 and a sliding guard plate 902 sealed and slidably connected thereto, the top of the sliding guard plate 902 is evenly spaced with second tension springs 903 installed in the horizontal direction, the top of the second tension spring 903 is installed on the inner top of the outer plate 901, and a first air pipe 901a is arranged at the top center of the outer plate 901, and the other end of the first air pipe 901a is connected to the third connecting pipe 904 through a pipe joint; the other end of the third connecting pipe 904 is connected to the second air pipe 901a through a pipe joint. The second air pipe 905a is connected, and the other end of the second air pipe 905a is arranged at the bottom of the outer wall of one side of the second air cylinder 905. A second rubber plug 906 is arranged inside the second air cylinder 905, and a push rod 906a is installed at the top center position of the second rubber plug 906. The top end of the push rod 906a passes through the through hole on the top of the second air cylinder 905, the through holes on the trolley 100 and the workbench 102 in sequence and is connected to the connecting plate 907; wherein, the bottom of the rear end face of the outer sleeve plate 901 is fixed on the front end face of the movable plate 204, and the front end face of the connecting plate 907 is fixed on one side of the rear end face of the movable plate 204.

[0070] When the above arrangement is in use, during the riveting process of the two pipe joint stampings and the core double partition stampings, the first cylinder 202 will push the lifting plate 203 downward, and the downward movement of the lifting plate 203 will drive the outer sleeve plate 901 and the connecting plate 907 on its front and rear end surfaces to move downward, wherein the bottom of the connecting plate 907 is connected to the second rubber plug 906 located inside the second air cylinder 905 through the push rod 906a, so the downward movement of the connecting plate 907 will push the second rubber plug 906 downward under the action of the push rod 906a, and squeeze the air inside the second air cylinder 905, and then Under the action of the second air pipe 905a, the third connecting pipe 904 and the first air pipe 901a, the air squeezed out from the second air cylinder 905 will enter the outer sleeve plate 901. As the internal air pressure increases, the sliding guard plate 902 inside it will be continuously pushed down and the second tension spring 903 will be stretched. At this time, the sliding guard plate 902 will block the outside of the two pipe joint stampings and the core double partition stampings, thereby protecting the surrounding staff and preventing the stampings from breaking during the internal riveting process and jumping out to injure the surrounding staff.

[0071] Furthermore, after the stamping is completed, the lifting plate 203 moves upward, driving the connecting plate 907 to move upward, and causing the second push rod 906a and the second rubber plug 906 to move upward. Under the action of the first air pipe 901a, the second air pipe 905a and the third connecting pipe 904, the air inside the outer sleeve 901 is re-drawn into the second air cylinder 905. At this time, due to the reduction in air pressure inside the outer sleeve 901, the sliding guard plate 902 can be pulled upward under the tension of the second tension spring 903, so that it can be re-stored into the inner part of the outer sleeve 901 to facilitate the subsequent work of the staff. Example 5

[0072] This embodiment is the fifth embodiment of the present invention, and this embodiment provides a pipe joint riveting process to facilitate better implementation of the present invention.

[0073] Specifically, a pipe joint riveting process includes the following steps:

[0074] S1: First, the two pipe joint stampings are placed in the placement groove 506a on the surface of the moving seat 506 in sequence, and then the core double partition stamping is stacked on the two pipe joint stampings. Then the second cylinder 301 pushes the dot rivet head 302a on the sliding seat 302 to move, and the front and rear four points on both sides of the two pipe joint stampings are limited;

[0075] S2: According to S1, the third cylinder 401 then pushes the limit plate 403 on the moving platform 402 to limit the riveting height position of the two parts, and at the same time the fourth cylinder 502 pushes the lifting seat 503 and the two sets of six-petal internal riveting heads 503a therein to rise and insert into the bottom of the two pipe joint stamping parts;

[0076] S3: According to S2, the lifting plate 203 is finally pushed by the first cylinder 202, and the riveting is completed with the cooperation of the positioning pin 204a and the two sets of six-petal internal riveting heads 503a;

[0077] S4: According to S3, during the riveting process, the fan 602 draws the high-temperature air heated by the heating plate 604a and the heating wire 603 into the two pipe joint stampings to increase the temperature of the two pipe joint stampings;

[0078] S5: According to S3, during the riveting process, when the lifting plate 203 descends, the sliding guard plate 902 inside the outer outer plate 901 thereof will descend synchronously and block the outer side of the riveted workpiece;

[0079] S6: After the workpiece is riveted, the driving block 505 slides to the outside along the driving rail 701 with the moving seat 506, and at the same time, the top plate 801 automatically rises to eject the riveted workpiece above.

[0080] In addition, it should be noted that the components not described in detail in this article are prior art.

[0081] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of a plurality of parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0082] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0083] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pipe joint riveting equipment, characterized in that: include, The trolley (100) comprises an electric control box (101) placed inside the trolley (100); a workbench (102) with an open slot (102a) at the front end is placed at the center of the upper surface of the trolley (100); The hydraulic assembly (200) comprises a mounting frame (201) and a first cylinder (202) mounted at the top front end thereof, a lifting plate (203) being mounted at the telescopic end of the first cylinder (202), a moving plate (204) being slidably connected to the center position of the bottom of the lifting plate (203), positioning pins (204a) being arranged at both the front and rear ends of the bottom of the lifting plate (203), and the positioning pins (204a) passing through the surface of the moving plate (204); The external dotting assembly (300) comprises a second cylinder (301) and a sliding seat (302) mounted at the telescopic end thereof, wherein the outer wall of the sliding seat (302) is provided with dotting rivet heads (302a) at both the front and rear ends; The partition height limiting assembly (400) comprises a third cylinder (401) and a moving platform (402) installed at the telescopic end thereof, wherein a limiting plate (403) is installed at the center position of the front end surface of the moving platform (402); An internal riveting assembly (500) comprises a bracket (501) mounted on the top of the interior of the trolley (100) and a fourth cylinder (502) mounted on the bottom of the bracket (501); a lifting seat (503) is mounted on the telescopic end of the fourth cylinder (502); six-petal internal riveting joints (503a) are installed through the front and rear ends of the interior of the lifting seat (503); air inlet pipes (504) are arranged at the front and rear ends of the bottom of the lifting seat (503); a driving block (505) is movably arranged on the upper surface of the lifting seat (503); a moving seat (506) is installed on the top of the driving block (505); wherein the top end of the six-petal internal riveted joint (503a) passes through the internal through holes of the driving block (505) and the movable seat (506) in sequence, the six-petal internal riveted joint (503a) is arranged in one-to-one correspondence with the air inlet pipe (504), a magnetic block (505a) is embedded in the middle of the front and rear end surfaces of the driving block (505), placement grooves (506a) are symmetrically arranged at the front and rear ends of the upper surface of the movable seat (506), and the placement grooves (506a) are arranged in one-to-one correspondence with the six-petal internal riveted joint (503a), and L-shaped through grooves (506b) are opened on both sides of the interior of the movable seat (506); and, A high-temperature ventilation assembly (600) comprises a heat preservation box (601) placed on one side above the electric control box (101), a mounting frame (604) mounted alternately front and back in the horizontal direction inside the heat preservation box (601), and a heating wire (603) hoisted inside the heat preservation box (601), a heating plate (604a) being mounted inside the mounting frame (604), and a fan (602) being mounted on one side of the heat preservation box (601); A dustproof window is provided on one side outer wall of the thermal insulation box (601), an air outlet pipe (601a) is provided at the center position of the other side outer wall of the thermal insulation box (601), the other end of the air outlet pipe (601a) is connected to the air inlet end of the fan (602) via a pipe joint, the air outlet end of the fan (602) is connected to the first connecting pipe (602a) via a pipe joint, and the other end of the air inlet pipe (504) is connected to the first connecting pipe (602a) via a pipe joint.

2. A pipe joint riveting equipment according to claim 1, characterized in that: It also includes a driving assembly (700) arranged inside the opening groove (102a), the driving assembly (700) including a driving rail (701) and a front end plate (702) and a rear end plate (703) fixedly mounted at the front and rear ends thereof, the bottoms of the opposite end surfaces of the front end plate (702) and the rear end plate (703) are both embedded with electromagnetic plates (702a), and both sides of the upper inner wall of the front end plate (702) are fixedly connected with plug rods (702b); The insertion rod (702b) and the L-shaped through groove (506b) are arranged in a one-to-one correspondence, and the driving rail (701) is slidably connected to the driving block (505) located inside the driving rail.

3. A pipe joint riveting equipment as claimed in claim 2, characterized in that: A self-lifting assembly (800) is arranged inside the L-shaped through groove (506b), and the self-lifting assembly (800) comprises a top plate (801) and telescopic cylinders (802) installed at the edges of both sides of the bottom thereof, an air port at the bottom of the outer wall of one side of the telescopic cylinder (802) is connected to a second connecting pipe (803) via a pipe joint, and the other end of the second connecting pipe (803) is connected to an air port on an end surface of one side of the first air cylinder (804) via a pipe joint, a first rubber stopper (805) is arranged on one side of the interior of the first air cylinder (804), and a first tension spring (806) is installed on the outer side wall of the first rubber stopper (805); The other end of the first tension spring (806) is fixed on an inner wall of one side of the first air cylinder (804), the telescopic cylinder (802) is installed at the vertical section of the L-shaped through groove (506b), the first air cylinder (804) is installed at the horizontal section of the L-shaped through groove (506b), and a through hole is opened at the center position of the outer wall of the first air cylinder (804) to facilitate the insertion of the insertion rod (702b) to push the first rubber plug (805) to move and squeeze the air inside the first air cylinder (804).

4. The pipe joint riveting equipment according to claim 1, characterized in that: It also includes a protective component (900) arranged on the outside of the movable plate (204), the protective component (900) including an outer plate (901) and a sliding protective plate (902) sealingly and slidably connected inside the outer plate (901), second tension springs (903) are evenly installed at intervals in the horizontal direction on the top of the sliding protective plate (902), the top of the second tension spring (903) is installed on the inner top of the outer plate (901), and a first air pipe (901a) is arranged at the center position of the top of the outer plate (901), and the other end of the first air pipe (901a) is connected to a third connecting pipe (904) through a pipe joint.

5. A pipe joint riveting equipment as claimed in claim 4, characterized in that: The other end of the third connecting pipe (904) is connected to the second air pipe (905a) through a pipe joint, and the other end of the second air pipe (905a) is arranged at the bottom of the outer wall of one side of the second air cylinder (905). A second rubber plug (906) is arranged inside the second air cylinder (905), and a push rod (906a) is installed at the top center position of the second rubber plug (906). The top end of the push rod (906a) passes through the through hole on the top of the second air cylinder (905), the through holes on the trolley (100) and the workbench (102) in sequence and is connected to the connecting plate (907); The bottom of the rear end face of the outer sleeve plate (901) is fixed to the front end face of the movable plate (204), and the front end face of the connecting plate (907) is fixed to one side of the rear end face of the movable plate (204).

6. A pipe joint riveting process, characterized in that: The pipe joint riveting equipment described in any one of claims 3 to 5 specifically comprises the following steps: S1: First, the two pipe joint stamping parts are sequentially placed inside the placement groove (506a) on the surface of the moving seat (506), and then the core double partition stamping parts are stacked on top of the two pipe joint stamping parts. Then, the second cylinder (301) pushes the dot rivet head (302a) on the sliding seat (302) to move, and limits the front and rear four points on both sides of the two pipe joint stamping parts; S2: According to S1, the third cylinder (401) then pushes the limit plate (403) on the moving platform (402) to limit the riveting height position of the two parts, and at the same time the fourth cylinder (502) pushes the lifting seat (503) and the two sets of six-petal internal riveting heads (503a) inside it to rise and insert them into the bottom of the two pipe joint stamping parts; S3: According to S2, finally, the lifting plate (203) is pushed by the first cylinder (202), and riveting is completed with the cooperation of the positioning pin (204a) and the two sets of six-petal internal riveting heads (503a); S4: According to S3, during the riveting process, the fan (602) draws high-temperature air heated by the heating plate (604a) and the heating wire (603) into the two pipe joint stampings to increase the temperature of the two pipe joint stampings; S5: According to S3, during the riveting process, when the lifting plate (203) descends, the sliding guard plate (902) inside the outer outer plate (901) thereof will descend synchronously and block the outer side of the riveted workpiece; S6: After the workpiece is riveted, the driving block (505) slides to the outside along the driving rail (701) with the moving seat (506), and at the same time, the top plate (801) automatically rises to eject the riveted workpiece above.

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