Automatic riveting machine capable of prepressing and positioning

Abstract

The utility model discloses an automatic riveting machine capable of prepressing and positioning. The automatic riveting machine comprises a working table, a supporting plate is fixedly installed at the top of the working table, four supporting sliding rods are fixedly installed at the top of the working table, a positioning plate is installed on the outer sides of the four supporting sliding rods in a sliding mode, and a hydraulic telescopic cylinder is fixedly installed at the top of the positioning plate. By arranging a connector and a discharge pipe, during operation, the connector is connected into a cold water supply end, water flow enters an upper spiral flow guide groove through a guide-in hose, heat in a cooling upper die base is guided out in a balanced mode under spiral flow guide of the upper spiral flow guide groove, and the heat is guided into a lower spiral flow guide groove through a communication hose; heat for cooling the lower die base is brought out through spiral flow guiding of the lower spiral flow guiding groove and finally discharged through the discharging pipe, a hot riveting workpiece can be cooled, so that the riveting quality is stabilized, subsequent procedures are facilitated after cooling, and rapid cooling use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting machines, in particular to an automatic riveting machine with pre-pressing and positioning functions. Background Technique

[0002] A riveting machine is a new type of riveting equipment developed based on the principle of cold rolling. It refers to a mechanical device that can rivet items with rivets. This equipment has a compact structure, stable performance, and convenient and safe operation. The riveting machine mainly completes assembly by rotation and pressure, and is mainly applied to occasions where rivets (such as hollow rivets, semi-hollow rivets, solid rivets, etc.) are required for riveting. Common types include pneumatic, hydraulic, and electric, with single-head and double-head and other specifications. The common types mainly include automatic riveting machines (mainly for the riveting of semi-hollow rivets, which can automatically feed materials and have high riveting efficiency!) and rotary riveting machines (rotary riveting machines are further divided into pneumatic rotary riveting machines and hydraulic rotary riveting machines, mainly used for the riveting of solid rivets or larger hollow rivets).

[0003] During the process of riveting metal materials, a riveting machine is usually used to rivet the structure. However, most of the existing riveting machines use a direct riveting method during use, without pre-pressing and positioning riveting, resulting in the inability to meet the needs of riveting different workpieces and the need for simultaneous cold pressing and hot pressing operations. Based on this, an automatic riveting machine with pre-pressing and positioning functions is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automatic riveting machine with pre-pressing and positioning functions to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: an automatic riveting machine with preloading and positioning function, including a workbench, a support plate is fixedly installed on the top of the workbench, four support sliding rods are fixedly installed on the top of the workbench, a positioning plate is slidably installed on the outer sides of the four support sliding rods, a hydraulic telescopic cylinder is fixedly installed on the top of the positioning plate, a riveting upper die base is fixedly installed at the bottom of the positioning plate through bolts, a first elastic telescopic column is fixedly installed on one side of the bottom of the positioning plate, a preloading upper die base is fixedly installed at the bottom of the first elastic telescopic column, a second elastic telescopic column is fixedly installed at the other end of the bottom of the positioning plate, a cooling upper die base is fixedly installed at the bottom of the second elastic telescopic column, an upper spiral diversion groove is formed inside the cooling upper die base, the top end of the upper spiral diversion groove is communicated with an inlet hose, one end of the inlet hose far away from the upper spiral diversion groove is communicated with a connector, the bottom end of the upper spiral diversion groove is communicated with a connecting hose, an installation plate is fixedly installed on the top of the workbench, a preloading lower die base is fixedly installed on the top of the installation plate, current eddy heating coils are sleeved inside both the preloading lower die base and the preloading upper die base, a riveting lower die base is fixedly installed through bolts at the middle part of the top of the installation plate, a cooling lower die base is fixedly installed on one side of the top of the installation plate far away from the preloading lower die base, a lower spiral diversion groove is formed inside the cooling lower die base, and a discharge pipe is communicated with the bottom end of the lower spiral diversion groove.

[0006] Preferably, the top ends of the four support sliding rods are fixedly installed on the top of the support plate, and the top end of the hydraulic telescopic cylinder is fixedly installed at the bottom of the top end of the support plate.

[0007] Preferably, the specification size of the cooling upper die base is adapted to the specification size of the cooling lower die base, and the specification size of the preloading lower die base is adapted to the specification size of the preloading upper die base.

[0008] Preferably, the connector is fixedly installed through the positioning plate, and one end of the connecting hose far away from the cooling upper die base is communicated with the top end of the lower spiral diversion groove.

[0009] Preferably, the position of the riveting lower die base corresponds to the position of the riveting upper die base, and the specification size of the installation plate is adapted to the specification size of the positioning plate.

[0010] Preferably, the materials of the preloading lower die base and the preloading upper die base are silicon carbide.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the device is in use, the operator first places the workpiece to be riveted on the top of the pre-pressing lower die base. At the same time, the hydraulic telescopic cylinder starts to move downward, driving the positioning plate to move downward, and prompting the first elastic telescopic column and the pre-pressing upper die base to move downward. At this time, the current eddy current heating coil starts to generate a certain amount of eddy current heating on the moving workpiece, so that the workpiece reaches the condition for hot riveting. At this time, the elasticity of the first elastic telescopic column prompts the pre-pressing upper die base and the pre-pressing lower die base to pre-press and position the riveted workpiece. Then, after the hydraulic telescopic cylinder lifts, the operator moves the workpiece to the top of the riveting lower die base. Next, the hydraulic telescopic cylinder moves downward, prompting the riveting upper die base and the riveting lower die base to butt-joint and rivet the riveted workpiece, thereby making the workpiece connection firm. Finally, the workpiece moves to the top of the cooling lower die base. At the same time, the connector connects to the water supply end of the water flow. The water flow enters the guiding hose through the connector, and is spirally guided through the upper spiral guiding groove into the interior of the connecting hose, enters the interior of the lower spiral guiding groove through the connecting hose, and finally is discharged through the discharge pipe, which can take out the heat of the cooling lower die base and the cooling upper die base, facilitating the cooling of the riveted workpiece. This solution can achieve pre-pressing and positioning of workpiece riveting, and can adapt to the working requirements of different cold riveting and hot riveting, facilitating use and having high overall efficiency;

[0012] Through the provided connector and discharge pipe, during operation, the connector is connected to the cold water supply end. The water flow enters the interior of the upper spiral guiding groove through the guiding hose, and under the spiral guiding of the upper spiral guiding groove, the heat inside the cooling upper die base is evenly exported. Then, it is guided through the connecting hose into the interior of the lower spiral guiding groove, and the heat of the cooling lower die base is taken out through the spiral guiding of the lower spiral guiding groove. Finally, it is discharged through the discharge pipe, which can cool the hot-riveted workpiece, so as to stabilize the riveting quality and facilitate subsequent processes after cooling, and is convenient for rapid cooling use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view three-dimensional external structure schematic diagram of the present utility model.

[0014] Figure 2 It is a front view sectional structure schematic diagram of the present utility model.

[0015] Figure 3 It is a right view sectional structure schematic diagram of the present utility model.

[0016] Figure 4 For the present utility model Figure 2 The enlarged structure schematic diagram at position A.

[0017] In the figure: 1, workbench; 2, support plate; 3, support slide bar; 4, hydraulic telescopic cylinder; 5, positioning plate; 6, connector; 7, mounting plate; 8, cooling lower die base; 9, riveting lower die base; 10, pre-pressing lower die base; 11, pre-pressing upper die base; 12, cooling upper die base; 13, first elastic telescopic column; 14, riveting upper die base; 15, eddy current heating coil; 16, second elastic telescopic column; 17, connecting hose; 18, lower spiral diversion groove; 19, upper spiral diversion groove; 20, inlet hose; 21, discharge pipe. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution: an automatic riveting machine capable of pre-pressing and positioning, including a workbench 1, a support plate 2 is fixedly installed on the top of the workbench 1, four support slide bars 3 are fixedly installed on the top of the workbench 1, a positioning plate 5 is slidably installed on the outer sides of the four support slide bars 3, a hydraulic telescopic cylinder 4 is fixedly installed on the top of the positioning plate 5, a riveting upper die base 14 is fixedly installed at the bottom of the positioning plate 5 through bolts, a first elastic telescopic column 13 is fixedly installed on one side of the bottom of the positioning plate 5, a pre-pressing upper die base 11 is fixedly installed at the bottom of the first elastic telescopic column 13, a second elastic telescopic column 16 is fixedly installed at the other end of the bottom of the positioning plate 5, a cooling upper die base 12 is fixedly installed at the bottom of the second elastic telescopic column 16, an upper spiral diversion groove 19 is opened inside the cooling upper die base 12, the top end of the upper spiral diversion groove 19 communicates with an inlet hose 20, one end of the inlet hose 20 away from the upper spiral diversion groove 19 communicates with a connector 6, the bottom end of the upper spiral diversion groove 19 communicates with a connecting hose 17, a mounting plate 7 is fixedly installed on the top of the workbench 1, a pre-pressing lower die base 10 is fixedly installed on the top of the mounting plate 7, eddy current heating coils 15 are sleeved inside both the pre-pressing lower die base 10 and the pre-pressing upper die base 11, a riveting lower die base 9 is fixedly installed through bolts at the middle part of the top of the mounting plate 7, a cooling lower die base 8 is fixedly installed on one side of the top of the mounting plate 7 away from the pre-pressing lower die base 10, a lower spiral diversion groove 18 is opened inside the cooling lower die base 8, and the bottom end of the lower spiral diversion groove 18 communicates with a discharge pipe 21.

[0020] Working principle of the above technical solution: During use, the operator first places the workpiece to be riveted on the top of the pre-pressing lower die base 10. At the same time, the hydraulic telescopic cylinder 4 starts to move downward, driving the positioning plate 5 to move downward, and prompting the first elastic telescopic column 13 and the pre-pressing upper die base 11 to move downward. At this time, the current eddy current heating coil 15 starts to generate a certain eddy current heating on the moving workpiece, so that the workpiece reaches the condition for hot riveting. At this time, the elastic force of the first elastic telescopic column 13 prompts the pre-pressing upper die base 11 and the pre-pressing lower die base 10 to pre-press and position the riveted workpiece. Then, after the hydraulic telescopic cylinder 4 is lifted, the operator moves the workpiece to the top of the riveting lower die base 9. Then, the hydraulic telescopic cylinder 4 moves downward, prompting the riveting upper die base 14 and the riveting lower die base 9 to dock and rivet the riveted workpiece, so as to make the workpiece connection tight. Finally, the workpiece moves to the top of the cooling lower die base 8. At the same time, the connector 6 is connected to the water supply end of the water flow. The water flow enters the inlet hose 20 through the connector 6, and is spirally guided through the upper spiral diversion groove 19 into the inside of the connecting hose 17, enters the inside of the lower spiral diversion groove 18 through the connecting hose 17, and is finally discharged through the discharge pipe 21, which can take out the heat of the cooling lower die base 8 and the cooling upper die base 12, facilitating the cooling of the riveted workpiece. This solution can achieve the pre-pressing and positioning of the workpiece riveting, and can adapt to the working requirements of different cold riveting and hot riveting, which is convenient to use and has high overall efficiency

[0021] In another embodiment, as Figures 1-4 shown, the top ends of the four support sliding rods 3 are fixedly installed on the top of the support plate 2, and the top end of the hydraulic telescopic cylinder 4 is fixedly installed at the bottom of the top end of the support plate 2

[0022] The support sliding rods 3 provide sliding for the positioning plate 5 and support for the support plate 2, facilitating the increase of structural strength, providing a support position for the hydraulic telescopic cylinder 4, facilitating stable riveting, and increasing the structural stability

[0023] In another embodiment, as Figures 1-4 shown, the specification size of the cooling upper die base 12 is adapted to the specification size of the cooling lower die base 8, and the specification size of the pre-pressing lower die base 10 is adapted to the specification size of the pre-pressing upper die base 11

[0024] It is convenient to carry out riveting operations. Moreover, the height of the cooling lower die base 8 and the pre-pressing lower die base 10 is slightly lower than the height of the riveting lower die base 9. The elastic force effects of the first elastic telescopic column 13 and the second elastic telescopic column 16 prompt the cooling upper die base 12 and the pre-pressing upper die base 11 to move downward and fit, facilitating pre-pressing and fitting, and will not affect the strength of the riveting lower die base 9 and the riveting upper die base 14, facilitating auxiliary operations

[0025] In another embodiment, as Figures 1-4As shown, the connector 6 is fixedly installed through the inside of the positioning plate 5, and one end of the connecting hose 17 away from the cooling upper die base 12 is connected to the top of the lower spiral diversion groove 18.

[0026] Through the provided connector 6 and the discharge pipe 21, during operation, the connector 6 is connected to the cold water supply end. The water flow enters the upper spiral diversion groove 19 through the inlet hose 20, and under the spiral diversion of the upper spiral diversion groove 19, the heat inside the cooling upper die base 12 is evenly exported. Then, it is diverted through the connecting hose 17 into the lower spiral diversion groove 18. Through the spiral diversion of the lower spiral diversion groove 18, the heat of the cooling lower die base 8 is taken out, and finally discharged through the discharge pipe 21. This can cool the thermally riveted workpiece, so as to stabilize the riveting quality and facilitate subsequent processes after cooling, and is convenient for rapid cooling use.

[0027] In another embodiment, as Figures 1-4 shown, the position of the riveting lower die base 9 corresponds to the position of the riveting upper die base 14, and the specification dimensions of the mounting plate 7 are adapted to the specification dimensions of the positioning plate 5.

[0028] The settings of the riveting lower die base 9 and the riveting upper die base 14 are convenient for stabilizing the torque and increasing the strength, facilitating the stamping of riveting. At the same time, the riveting lower die base 9 and the riveting upper die base 14 are convenient for disassembling and replacing different riveting dies according to different workpieces, facilitating riveting. The width and length of the mounting plate 7 are both smaller than those of the positioning plate 5, and the mounting plate 7 is located inside the support slide rod 3. This setting is convenient for installing an automatic conveyor belt in another scheme, facilitating the automated stamping and riveting operation in a streamlined manner. The automatic conveyor belt is located outside the mounting plate 7 and inside the support slide rod 3, facilitating the support and transmission of the riveted workpiece, and meeting the needs of subsequent automated and semi-automated product production.

[0029] In another embodiment, as Figures 1-4 shown, the materials of the pre-pressing lower die base 10 and the pre-pressing upper die base 11 are silicon carbide.

[0030] The materials of the pre-pressing lower die base 10 and the pre-pressing upper die base 11 are one of ceramics, silicon carbide, and tungsten metal. Different materials are used according to the needs of producing different riveted workpieces. For example, silicon carbide is used for the stamping and riveting of ceramic cutting tools and wear-resistant parts, and the main purpose is that its material will not be significantly affected by the eddy current heating of the current eddy current heating coil 15, facilitating the heating of the riveted metal workpiece. When the metal workpiece does not need to be riveted, it can be used for the riveting operation of non-metal workpieces to meet different processing needs and increase the overall usage requirements.

[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic riveting machine capable of pre-pressing and positioning, comprising a workbench (1), characterized in that: A support plate (2) is fixedly installed on the top of the workbench (1), four supporting slide bars (3) are fixedly installed on the top of the workbench (1), and a positioning plate (5) is slidably installed on the outer sides of the four supporting slide bars (3), and a hydraulic telescopic cylinder (4) is fixedly installed on the top of the positioning plate (5), and a riveted upper die seat (14) is fixedly installed on the bottom of the positioning plate (5) by bolts, and a first elastic telescopic column (13) is fixedly installed on one side of the bottom of the positioning plate (5), and a pre-pressed upper die seat (11) is fixedly installed on the bottom of the first elastic telescopic column (13), and a second elastic telescopic column (16) is fixedly installed on the other end of the bottom of the positioning plate (5), and a cooling upper die seat (12) is fixedly installed on the bottom of the second elastic telescopic column (16), and an upper spiral guide groove (19) is opened inside the cooling upper die seat (12), and the upper spiral guide groove (19) ) is connected to the top of the workbench (1) with an inlet hose (20), the end of the inlet hose (20) away from the upper spiral guide groove (19) is connected to a connector (6), the bottom end of the upper spiral guide groove (19) is connected to a connecting hose (17), a mounting plate (7) is fixedly installed on the top of the workbench (1), a pre-stressing lower die seat (10) is fixedly installed on the top of the mounting plate (7), the interior of the pre-stressing lower die seat (10) and the pre-stressing upper die seat (11) are both sleeved with an eddy current heating coil (15), a riveted lower die seat (9) is fixedly installed in the middle part of the top of the mounting plate (7) by bolts, a cooling lower die seat (8) is fixedly installed on the side of the top of the mounting plate (7) away from the pre-stressing lower die seat (10), a lower spiral guide groove (18) is opened inside the cooling lower die seat (8), and the bottom end of the lower spiral guide groove (18) is connected to a discharge pipe (21).

2. The automatic riveting machine capable of pre-pressing and positioning according to claim 1, characterized in that: The top ends of the four support slide bars (3) are fixedly mounted on the top of the support plate (2), and the top end of the hydraulic telescopic cylinder (4) is fixedly mounted on the bottom of the top end of the support plate (2).

3. The automatic riveting machine capable of pre-pressing and positioning according to claim 1, characterized in that: The specifications and dimensions of the cooling upper die seat (12) are compatible with the specifications and dimensions of the cooling lower die seat (8), and the specifications and dimensions of the pre-pressing lower die seat (10) are compatible with the specifications and dimensions of the pre-pressing upper die seat (11).

4. The automatic riveting machine capable of pre-pressing and positioning according to claim 1, characterized in that: The connector (6) is fixedly installed through the interior of the positioning plate (5), and one end of the connecting hose (17) away from the cooling upper die seat (12) is connected to the top end of the lower spiral guide groove (18).

5. The automatic riveting machine capable of pre-pressing and positioning according to claim 1, characterized in that: The position of the riveting lower die base (9) corresponds to the position of the riveting upper die base (14), and the specification and size of the mounting plate (7) are compatible with the specification and size of the positioning plate (5).

6. The automatic riveting machine capable of pre-pressing and positioning according to claim 1, characterized in that: The material of the pre-pressing lower die seat (10) and the pre-pressing upper die seat (11) is silicon carbide.

Images