Pipe box bridge frame punching device and pipe box bridge frame produced by punching device

Abstract

The invention provides a tube box bridge frame punching device and a tube box bridge frame produced by the punching device, and belongs to the technical field of tube box bridge frame machining. Comprising a body; the punch is arranged at the top of the machine body and is used for punching a processing material; the platform structure is located on the machine body, and the platform structure is connected with the machine body; the platform structure comprises a material guide plate fixedly connected to the machine body and used for providing a mounting platform, a fixed discharging assembly is arranged on the material guide plate and used for discharging waste generated by stamping, and two symmetrical material limiting strips are fixedly connected to the top of the material guide plate and used for guiding and limiting materials in conveying. By arranging the fixed discharging assembly, a metal plate to be punched can be fixed during punching, after punching work is completed, waste can be discharged, and the situation that due to the fact that the waste is not completely discharged, die damage, machining precision reduction and even equipment shutdown are possibly caused is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of processing of pipe box bridges, and particularly relates to a punching device for pipe box bridges and a pipe box bridge produced by the punching device. Background Art

[0002] A pipe box bridge generally refers to a cable laying system that combines the functions of pipe protection and bridge support, and is mainly used for cable wiring and protection in the fields of electric power, communication, construction, etc. During the processing of pipe box bridges, fixed holes, connection holes, heat dissipation holes or wire routing holes need to be punched on metal plates (such as galvanized steel plates, stainless steel, etc.). The punching device is the core equipment for automatically or semi-automatically completing this process.

[0003] A punching machine is a mechanical device used to punch specific-shaped holes in materials such as metals and plastics. It is widely used in fields such as manufacturing and construction. It provides power through a motor, a hydraulic system or a pneumatic device, and drives the punch to apply pressure to the material to complete the punching action.

[0004] When the existing punching machine punches a metal plate, it conveys the metal plate through a conveying roller and punches at the same time. There will be a gap between the metal plate and the punching table, which will cause the punching accuracy to decrease. At the same time, during the punching process, if the waste material is not completely removed, it may cause damage to the mold, a decrease in processing accuracy, or even equipment shutdown. Therefore, the present application provides a punching device for pipe box bridges and a pipe box bridge produced by the punching device to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a punching device for pipe box bridges and a pipe box bridge produced by the punching device to solve the problems that when the existing punching machine punches a metal plate, it conveys the metal plate through a conveying roller and punches at the same time, there will be a gap between the metal plate and the punching table, which will cause the punching accuracy to decrease, and at the same time, during the punching process, if the waste material is not completely removed, it may cause damage to the mold, a decrease in processing accuracy, or even equipment shutdown.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] A punching device for pipe box bridges includes a machine body; a punch, which is arranged on the top of the machine body and is used for punching the processed plate; a platform structure, which is located on the machine body and is connected to the machine body; the platform structure includes a guide plate fixedly connected to the machine body, which is used to provide an installation platform, and a fixed discharge assembly is arranged on the guide plate, which is used to discharge the waste material generated by punching, and two symmetrically arranged limiting strips are fixedly connected to the top of the guide plate, which are used to guide and limit the processed plate during transmission.

[0008] Optionally, a material guiding groove is formed at the top of the material guiding plate. A punching table is fixedly connected to the middle position of the material guiding groove. Four corner positions at the top of the material guiding plate are fixedly connected with vertical blocks. Two groups of symmetrically distributed punching holes are formed in the punching table. A material ejecting groove communicating with the punching holes is formed at the bottom of the punching table.

[0009] Optionally, the punching table divides the material guiding groove into a feeding area and a discharging area. One ends of two vertical blocks located in the feeding area are both in an everted structure. The aperture size of the punching holes is larger than the aperture size of the holes to be punched. The outer side of the material ejecting groove is a vertical plane, and its inner side is an arc-shaped curved surface.

[0010] Optionally, a plurality of conveying rollers are symmetrically arranged on both sides of the material guiding groove. Every two adjacent conveying rollers are connected by a belt in a driving manner. The outermost conveying roller is fixedly connected to the output end of a motor. A feeding roller is rotatably connected between two vertical blocks located in the feeding area. A discharging roller is rotatably connected between two vertical blocks located in the discharging area. A thorns removing sleeve is sleeved on the outer surface of the discharging roller.

[0011] Optionally, the thorns removing sleeve is composed of four annularly distributed elastic strips. The edges of every two adjacent elastic strips are connected to each other. Each elastic strip is composed of an outwardly convex section and two supporting sections. The outwardly convex section is an arc-shaped structure with both ends fixedly connected to the outer surface of the thorns removing sleeve. The two supporting sections are symmetrically installed in the gap between the discharging roller and the outwardly convex section. One ends of the two supporting sections are connected to each other and fixedly connected to the middle position of the inner wall of the outwardly convex section, and the other ends are fixedly connected to the outer surface of the thorns removing sleeve. Sandpaper rods are uniformly fixedly connected to the outer surface of the outwardly convex section.

[0012] Optionally, the thickness of the material limiting strip is the same as the thickness of the processed plate to be punched. First elastic strips are fixedly connected to the opposite side surfaces of the two material limiting strips. A receiving groove is formed at the bottom of the first elastic strip. Second elastic strips are fixedly connected to the connection positions between the bottom of the first elastic strip and the material limiting strip. The second elastic strips are adapted to the size of the receiving groove. Both ends of the second elastic strips are in an everted structure.

[0013] Optionally, the fixed and discharging assembly includes a U-shaped plate fixedly connected to the bottom of the material guiding plate. A telescopic rod is fixedly connected to the surface of the U-shaped plate. The top end of the telescopic rod is fixedly connected to a connecting plate. Sleeve pipes are fixedly connected to both ends of the connecting plate. A suction cup is fixedly connected to the top end of the sleeve pipe. The suction cup penetrates through the punching holes and extends above the material guiding plate. A discharging unit for discharging the punched waste is further included.

[0014] Optionally, the discharging unit includes a pressing rod fixedly connected to one side of the connecting plate. The pressing rod is in an L-shaped structure. A discharging piece is fixedly connected to one side of the material ejecting groove. The top end of the pressing rod is in contact with the surface of the discharging piece.

[0015] Optionally, the discharge piece is formed by connecting a discharge section and an extrusion section. One end of the discharge section is fixedly connected to the inner wall of the elastic material groove, and the other end is connected to the extrusion section. In the initial state, the discharge section is in a vertical state.

[0016] The present application also provides a tube sheet bridge produced by a punching device, including: a U-shaped bottom plate, which is manufactured from a processed plate after punching, and a plurality of evenly distributed bridge holes are provided on both side surfaces of the two ends of the U-shaped bottom plate.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above solution, by setting the fixed discharge component, the metal plate to be punched can be fixed during punching. After the punching work is completed, the waste can be discharged, avoiding the situation that the mold may be damaged, the processing accuracy may decrease, or even the equipment may stop due to incomplete discharge of the waste.

[0019] By setting the material limiting strip, the two sides of the metal plate during transportation can be limited, avoiding the situation that there is a gap between the metal plate and the material guiding plate during punching, resulting in insufficient punching accuracy.

[0020] By setting the deburring sleeve, the outer convex section is extruded by the support section, so that the surface of the outer convex section is always in contact with the surface of the metal plate. The rolling transmission roller and the discharge roller will drive the elastic strip to rotate on the surface of the metal plate, so as to polish and deburr the surface of the metal plate through the sandpaper rod installed with sandpaper.

[0021] By setting the discharge piece, through the cooperation of the discharge piece and the pressure rod, the waste at the top of the suction cup is discharged. The discharge piece is an elastic structure, which can be integrally formed by stamping, with simple manufacturing process, low cost, and good discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a tube sheet bridge punching device;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the first perspective of the platform structure;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the second perspective of the platform structure;

[0026] Figure 4Schematic diagram of the three-dimensional structure of the material guiding plate;

[0027] Figure 5 Schematic diagram of the three-dimensional structure of the material limiting bar;

[0028] Figure 6 Schematic diagram of the three-dimensional assembled structure of the discharge roller and the de-spiking sleeve;

[0029] Figure 7 For Figure 6 Schematic diagram of the three-dimensional structure at position A in

[0030] Figure 8 Schematic diagram of the sectional three-dimensional assembled structure of the material guiding plate and the fixed discharging component;

[0031] Figure 9 Schematic diagram of the disassembled three-dimensional assembled structure of the material guiding plate and the fixed discharging component;

[0032] Figure 10 Schematic diagram of the three-dimensional structure of the pipe box bridge.

[0033] Reference numerals:

[0034] 1. Machine body; 11. Punch; 2. Platform structure; 21. Material guiding plate; 211. Material guiding groove; 212. Stamping table; 213. Vertical block; 214. Stamping hole; 215. Elastic material groove; 22. Material limiting bar; 221. First elastic strip; 222. Receiving groove; 223. Second elastic strip; 23. Feeding roller; 24. Transmission roller; 25. Discharge roller; 26. De-spiking sleeve; 261. Outer convex section; 262. Support section; 263. Sandpaper rod; 27. Fixed discharging component; 271. U-shaped plate; 272. Telescopic rod; 273. Connecting plate; 274. Sleeve; 275. Suction cup; 276. Pressure rod; 28. Discharging piece; 281. Discharging section; 282. Extrusion section.

[0035] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device, and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0036] The following describes in detail a pipe box bridge punching device provided by the present invention and the pipe box bridge produced by this punching device in combination with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0037] It should be noted that references in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0038] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0039] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0040] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0041] like Figures 1 to 9As shown in the figure, an embodiment of the present invention provides a punching device for a tube sheet bridge frame, including: a machine body 1; a punch 11, which is arranged on the top of the machine body 1 and is used for punching a plate. Both the machine body 1 and the punch 11 are prior arts. A platform structure 2 is located on the machine body 1 and is connected to the machine body 1. The platform structure 2 replaces the original die platform. The platform structure 2 realizes the guiding and transmission of the metal plate used for processing the tube sheet bridge frame, so that the metal plate material can enter the next process through the platform structure 2 after processing, realizing the automation of punching and material guiding. The platform structure 2 includes a guide plate 21 fixedly connected to the machine body 1, which is used to provide an installation platform. The guide plate 21 serves as an installation platform, providing installation positions for the fixed and discharging assembly 27 and the material limiting bar 22. At the same time, the guide plate 21 also serves as the displacement track of the metal plate material, providing sufficient sliding space for the transportation of the metal plate material. The length of the guide plate 21 is adapted to the length of the metal plate to be punched. A fixed and discharging assembly 27 is arranged on the guide plate 21, which is used to discharge the waste generated by stamping. Through the fixed and discharging assembly 27, the metal plate to be punched can be fixed during punching. After the punching work is completed, the waste can be discharged to avoid the situation that the die may be damaged, the processing accuracy may decrease, or even the equipment may stop due to incomplete discharge of the waste. Two symmetrically arranged material limiting bars 22 are fixedly connected to the top of the guide plate 21, which are used to guide and limit the processed plate during transmission. Through the material limiting bars 22, the two sides of the metal plate during transportation can be limited to avoid the situation that there is a gap between the metal plate and the guide plate 21 during punching, resulting in insufficient punching accuracy.

[0042] As Figures 2 to 4 shown, a guide groove 211 is opened at the top of the guide plate 21. A punching table 212 is fixedly connected to the middle position of the guide groove 211. The punching table 212 is used to cooperate with the punch 11 to punch the metal plate material. Four corners of the top of the guide plate 21 are fixedly connected with upright blocks 213. Two groups of symmetrically distributed punching holes 214 are opened on the punching table 212, and the punching holes 214 correspond to the punch 11. A material ejecting groove 215 communicating with the punching holes 214 is opened at the bottom of the punching table 212. The material ejecting groove 215 provides a discharging space for discharging the punching waste. The punching table 212 divides the guide groove 211 into a feeding area and a discharging area. One ends of the two upright blocks 213 located in the feeding area are both in an outward-turning structure. When the metal plate enters the feeding area of the guide plate 21, the outward-turning upright blocks 213 can guide the metal plate, facilitating the metal plate to enter the feeding area. The aperture size of the punching holes 214 is larger than the aperture size required for punching. The outer side of the material ejecting groove 215 is a vertical plane, and its inner side is an arc-shaped surface.

[0043] As Figure 2 、 Figure 6 and Figure 7As shown, a number of transmission rollers 24 are symmetrically arranged on both sides of the material guiding groove 211. Every two adjacent transmission rollers 24 are connected by belt drive. The outermost transmission roller 24 is fixedly connected to the output end of the motor. A feeding roller 23 is rotatably connected between two vertical blocks 213 in the feeding area. By driving the outermost transmission roller 24 in the feeding area to rotate by the motor, and then driving other transmission rollers 24 to rotate by the outermost transmission roller 24, the outermost transmission roller 24 and the feeding roller 23 cooperate with each other to drive the metal plate material to move along the direction of the material guiding plate 21. A discharging roller 25 is rotatably connected between two vertical blocks 213 in the discharging area. A deburring sleeve 26 is sleeved on the outer surface wall of the discharging roller 25. The outermost transmission roller 24 in the discharging area and the discharging roller 25 cooperate with each other to perform the discharging work on the metal plate after punching. The deburring sleeve 26 is composed of four elastic strips distributed in a ring shape. The edges of every two adjacent elastic strips are connected to each other. The elastic strip is composed of an outward convex section 261 and two supporting sections 262. The thicknesses of the outward convex section 261 and the supporting sections 262 gradually change from thin to thick from the middle to both ends. The outward convex section 261 is an arc-shaped structure with both ends fixedly connected to the outer surface wall of the deburring sleeve 26. The two supporting sections 262 are symmetrically installed in the gap between the discharging roller 25 and the outward convex section 261. One ends of the two supporting sections 262 are connected to each other and fixedly connected to the middle position of the inner wall of the outward convex section 261, and the other ends are fixedly connected to the outer surface wall of the deburring sleeve 26. Sandpaper rods 263 are uniformly fixedly connected to the outer surface wall of the outward convex section 261. After punching, the metal plate will pass through between the transmission roller 24 and the discharging roller 25. The passing metal plate will squeeze the deburring sleeve 26 on the transmission roller 24 and the discharging roller 25. When squeezing, the metal plate will squeeze the outward convex section 261. At the same time, the two supporting sections 262 will deform under the extrusion of the outward convex section 261. By the supporting sections 262 squeezing the outward convex section 261, the surface of the outward convex section 261 is always in contact with the surface of the metal plate. The rolling transmission roller 24 and the discharging roller 25 will drive the elastic strip to rotate on the surface of the metal plate, so as to polish and deburr the surface of the metal plate through the sandpaper rods 263 installed with sandpaper.

[0044] As Figure 2 , Figure 4 and Figure 5As shown, the thickness of the material limiting strip 22 is the same as the thickness of the processing plate to be punched. The material limiting strip 22 with the same thickness will not affect the punching work of the punch 11 on the metal plate. The opposite side surfaces of the two material limiting strips 22 are fixedly connected with a first elastic strip 221. A receiving groove 222 is formed at the bottom of the first elastic strip 221. A second elastic strip 223 is fixedly connected to the connection position between the bottom of the first elastic strip 221 and the material limiting strip 22. The second elastic strip 223 is adapted to the size of the receiving groove 222. Both ends of the second elastic strip 223 are in an outward-turning structure. The metal plate entering from the feeding area will contact one end of the second elastic strip 223. Since both ends of the second elastic strip 223 are in an outward-turning shape, when contacting the metal plate, it will guide the metal plate and make the metal plate snap under the second elastic strip 223. At the same time, when the metal plate enters under the second elastic strip 223, it will push the second elastic strip 223 up to a horizontal state, so as to provide a downward extrusion force to the metal plate through the downward-inclined second elastic strip 223, and then limit the metal plate. When the punch 11 performs punching work, the surface of the punch 11 will squeeze the first elastic strip 221, driving the first elastic strip 221 to fit with the surface of the punch 11, and at the same time embedding the second elastic strip 223 into the receiving groove 222, so that the first elastic strip 221 will not affect the punching work.

[0045] As Figure 2 , Figure 3 , Figure 8 and Figure 9As shown in the figure, the fixed blanking assembly 27 includes a U-shaped plate 271 fixedly connected to the bottom of the material guide plate 21. The two ends of the U-shaped plate 271 are fixedly connected to the bottom of the material guide plate 21. The U-shaped plate 271 provides a support platform for the telescopic rod 272. The surface of the U-shaped plate 271 is fixedly connected with a telescopic rod 272. The top end of the telescopic rod 272 is fixedly connected with a connecting plate 273. Both ends of the connecting plate 273 are fixedly connected with sleeves 274. The top end of the sleeve 274 is fixedly connected with a suction cup 275. The suction cup 275 penetrates through the punching hole 214 and extends above the material guide plate 21. The bottom of the suction cup 275 is communicated with an air pipe, which is connected to an external air pump. The air pump controls the operation of the suction cup 275. When punching work needs to be carried out, the air pump controls the suction cup 275 to adsorb the bottom of the metal plate, so as to adsorb and fix the metal plate. Since the suction cup 275 corresponds to the punching hole 214, after the punching work of the punch 11 is completed, the suction cup 275 adsorbs the waste material after punching; it also includes a blanking unit for discharging the punched waste material. The waste material adsorbed on the suction cup 275 can be discharged through the blanking unit; the blanking unit includes a pressure rod 276 fixedly connected to one side of the connecting plate 273. The pressure rod 276 is of an L-shaped structure. One side of the elastic material groove 215 is fixedly connected with a blanking piece 28. The top end of the pressure rod 276 is in contact with the surface of the blanking piece 28; the blanking piece 28 is connected by a blanking section 281 and an extrusion section 282. One end of the blanking section 281 is fixedly connected to the inner wall of the elastic material groove 215, and the other end is connected to the extrusion section 282. In the initial state, the blanking section 281 is in a vertical state. After the punching work of the punch 11 is completed, the telescopic rod 272 is controlled to contract, driving the connecting plate 273 fixed thereto to move downward, and then driving the suction cup 275 at the top of the sleeve 274 to move downward. While the suction cup 275 moves downward, the air pump stops working, canceling the adsorption of the waste material on the top of the suction cup 275. As the connecting plate 273 moves downward, the pressure rod 276 fixedly connected thereto moves synchronously. When the pressure rod 276 moves downward, the extrusion of the extrusion section 282 will be gradually reduced until the extrusion section 282 returns to the initial position. At the same time, when the extrusion section 282 recovers from the deformation, the blanking section 281 is driven to return to the initial position. The blanking section 281 that returns to the initial position will elastically eject the waste material on the top of the suction cup 275, so as to eject the waste material into the elastic material groove 215 for blanking work.

[0046] As Figure 10 shown in the figure, the present application also provides a tube box bridge produced by a punching device, including: a U-shaped bottom plate 3, the U-shaped bottom plate 3 is manufactured from a processed plate after punching, and a plurality of uniformly distributed bridge holes 31 are provided on both side surfaces of the two ends of the U-shaped bottom plate 3.

[0047] The working principle of the technical solution provided by the present invention is as follows: When punching a metal plate material, the transmission roller 24 on the outermost side of the feeding area is driven to rotate by a motor, and then the other transmission rollers 24 are driven to rotate by the outermost transmission roller 24. The outermost transmission roller 24 and the feeding roller 23 cooperate with each other to drive the metal plate material to move along the direction of the guiding plate 21.

[0048] The metal plate entering from the feeding area will contact one end of the second elastic strip 223. Since both ends of the second elastic strip 223 are turned outwards, when contacting the metal plate, it will guide the metal plate, so that the metal plate is stuck under the second elastic strip 223. At the same time, when the metal plate enters under the second elastic strip 223, the second elastic strip 223 will be pushed up to a horizontal state.

[0049] During punching, the position of the metal plate to be punched is conveyed to the punching position on the punch 11 and the punching table 212. The air pump controls the suction cup 275 to adsorb the bottom of the metal plate, so as to adsorb and fix the metal plate. Then, the punch 11 is controlled to punch the metal plate. When the punching work of the punch 11 is completed, the telescopic rod 272 is controlled to contract, driving the connecting plate 273 fixed thereto to displace downward, and then driving the suction cup 275 at the top of the sleeve 274 to move downward. While the suction cup 275 displaces downward, the air pump stops working, canceling the adsorption of the waste material on the top of the suction cup 275. As the connecting plate 273 displaces downward, it drives the pressure rod 276 fixedly connected thereto to move synchronously. When the pressure rod 276 displaces downward, the extrusion on the extrusion section 282 will be gradually reduced until the extrusion section 282 returns to its initial position. At the same time, when the extrusion section 282 recovers from deformation, it drives the unloading section 281 to return to its initial position. The unloading section 281 that returns to its initial position will eject the waste material on the top of the elastic suction cup 275, so as to eject the waste material into the waste material groove 215 for unloading work.

[0050] The metal plate after punching will pass through between the transmission roller 24 and the discharging roller 25. The passing metal plate will squeeze the deburring sleeve 26 on the transmission roller 24 and the discharging roller 25. When squeezing, the metal plate will squeeze the convex section 261, and at the same time, the two supporting sections 262 will deform under the extrusion of the convex section 261. By the supporting section 262 squeezing the convex section 261, the surface of the convex section 261 is always in contact with the surface of the metal plate. The rotating transmission roller 24 and discharging roller 25 will drive the elastic strip to rotate on the surface of the metal plate, so as to polish and deburr the surface of the metal plate through the sandpaper rod 263 installed with sandpaper.

[0051] The present invention covers any alternatives, modifications, equivalent methods and solutions made to the essence and scope of the present invention. For the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, well-known methods, processes, procedures, components and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0052] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A tube sheet bridge punching device, characterized in that Comprising: A fuselage; A punch, which is arranged at the top of the fuselage and is used for processing a plate to perform a punching operation; A platform structure, which is located on the fuselage and is connected to the fuselage; The platform structure includes a guide plate fixedly connected to the fuselage for providing an installation platform. A fixed and unloading assembly is arranged on the guide plate for unloading the waste generated by stamping. Two symmetrically arranged limiting strips are fixedly connected to the top of the guide plate for guiding and limiting the processing plate during transmission.

2. The tube sheet bridge punching device according to claim 1, wherein, A guide groove is formed at the top of the guide plate. A punching table is fixedly connected at the middle position of the guide groove. Four corner positions at the top of the guide plate are fixedly connected with vertical blocks. Two groups of symmetrically distributed punching holes are formed on the punching table. A material ejecting groove communicating with the punching holes is formed at the bottom of the punching table.

3. The tube sheet bridge punching device according to claim 2, characterized in that, The punching table divides the guide groove into a feeding area and a discharging area. One end of each of the two vertical blocks located in the feeding area is in an outward-turning structure. The aperture size of the punching hole is larger than the aperture size of the required punching. The outer side of the material ejecting groove is a vertical plane, and its inner side is an arc-shaped curved surface.

4. The tube sheet bridge punching device according to claim 3, characterized in that, A number of transmission rollers are symmetrically arranged on both sides of the guide groove. Each two adjacent transmission rollers are connected by a belt drive. The outermost transmission roller is fixedly connected to the output end of a motor. A feeding roller is rotatably connected between the two vertical blocks located in the feeding area. A discharging roller is rotatably connected between the two vertical blocks located in the discharging area. A deburring sleeve is sleeved on the outer surface of the discharging roller.

5. The punching device for the tube sheet bridge according to claim 4, characterized in that, The deburring sleeve is composed of four annularly distributed elastic strips, and the edges of each two adjacent elastic strips are connected to each other; Each elastic strip is composed of an outwardly convex section and two supporting sections. The outwardly convex section is an arc-shaped structure with both ends fixedly connected to the outer surface of the deburring sleeve. The two supporting sections are symmetrically installed in the gap between the discharging roller and the outwardly convex section. One end of each of the two supporting sections is connected to each other and is fixedly connected to the middle position of the inner wall of the outwardly convex section, and the other end is fixedly connected to the outer surface of the deburring sleeve; Sandpaper rods are uniformly fixedly connected to the outer surface of the outwardly convex section.

6. The punching device for the tube sheet bridge described in claim 1, characterized in that, The thickness of the limiting strip is the same as the thickness of the processing plate to be punched. A first elastic strip is fixedly connected to the opposite side surfaces of the two limiting strips. A receiving groove is formed at the bottom of the first elastic strip. A second elastic strip is fixedly connected to the connection position between the bottom of the first elastic strip and the limiting strip. The second elastic strip is adapted to the size of the receiving groove; Both ends of the second elastic strip are in an outward-turning structure.

7. The tube sheet bridge punching device according to claim 2, characterized in that, The fixed and unloading assembly includes a U-shaped plate fixedly connected to the bottom of the guide plate. A telescopic rod is fixedly connected to the surface of the U-shaped plate. The top of the telescopic rod is fixedly connected to a connecting plate. Sleeve pipes are fixedly connected to both ends of the connecting plate. A suction cup is fixedly connected to the top of the sleeve pipe. The suction cup penetrates through the punching hole and extends above the guide plate; It further includes a discharging unit for discharging the punched waste.

8. The punching device for the tube sheet bridge according to claim 7, characterized in that, The discharging unit includes a pressing rod fixedly connected to one side of the connecting plate. The pressing rod is in an L-shaped structure. A discharging piece is fixedly connected to one side of the material ejecting groove. The top of the pressing rod is in contact with the surface of the discharging piece.

9. The tube sheet bridge punching device according to claim 8, characterized in that, The blanking piece is formed by connecting a blanking section and an extrusion section. One end of the blanking section is fixedly connected to the inner wall of the elastic material groove, and the other end is connected to the extrusion section. In the initial state, the blanking section is in a vertical state.

10. A tube sheet bridge produced by the punching device according to any one of claims 1-9, characterized in that, including: a U-shaped bottom plate, which is manufactured from a processed plate after punching. A number of evenly distributed bridge holes are formed on both side surfaces at the two ends of the U-shaped bottom plate.

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