Sheet metal part punching machine capable of automatically returning materials

Abstract

The utility model discloses an automatic material returning sheet metal part punching machine which comprises a machining table, a punching and bending mechanism is arranged on the rear side of the top of the machining table, a material returning mechanism is arranged on the top of the machining table, and the material returning mechanism comprises a material returning assembly and a material returning assembly, the top end of the sliding rod is fixedly connected with a sliding plate, the front side of the sliding plate is fixedly connected with a material returning plate, the bottom end of the sliding rod is fixedly connected with a limiting plate, and the bottom of the limiting plate is rotationally connected with a rotating rod. According to the sheet metal part punching machine with the automatic material returning function, the material returning mechanism is arranged, the material returning plate is driven by the driving motor to slide back and forth in a reciprocating mode, sheet metal parts wrapping the surface of the containing table can be pushed through the material returning plate, therefore, automatic material returning operation of the machined sheet metal parts is achieved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to a sheet metal punching machine with automatic material stripping. Background Art

[0002] Sheet metal parts are made through filament power winding, laser cutting, heavy machining, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending, die forging, and water jet cutting. Sheet metal stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal parts to deformation force in the mold and deform them, thereby obtaining product parts of a certain shape, size and performance.

[0003] The reference patent is titled: A sheet metal punching machine with automatic material stripping (patent publication number: CN219703299U, patent publication date: 2023.09.19), comprising a punching machine operating table: a support column is welded on the top of the punching machine operating table, a stamping and bending die is welded on the top of the punching and bending die, two extrusion blocks are rotatably connected to the inner cavity of the stamping and bending die, a cylinder is embedded in the top of the support column, a sleeve is fixedly connected to the output end of the cylinder, a sleeve is slidably connected to the inner cavity of the sleeve, and a punch head body is welded to the bottom of the sleeve rod. The utility model drives the punch head body to slide upward by the cylinder. When the connecting rod slides to the top of the inner cavity of the slide groove, the output end of the cylinder continues to contract, thereby driving the sleeve to slide upward and pulling the wire rope, thereby driving the T-shaped fixed block to slide forward in the inner cavity of the connecting rod, and then driving the stripping piece to strip the sheet metal wrapped on the surface of the punch head body, thereby achieving the purpose of automatic material stripping and improving the efficiency of sheet metal stripping.

[0004] Based on what is described in the above document: When the existing sheet metal punching machine performs bending operations on sheet metal parts, the bent sheet metal parts will be wrapped on the placement table, and they need to be manually unloaded. The process is relatively cumbersome and will affect work efficiency. Therefore, the utility model provides a sheet metal punching machine with automatic material unloading. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a sheet metal punching machine with automatic material return, which solves the problem that when the existing sheet metal punching machine performs a bending operation on the sheet metal parts, the bent sheet metal parts will be wrapped on the placement table and need to be manually returned, which is a cumbersome process and affects work efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sheet metal punching machine with automatic material return, comprising a processing table, a punching and bending mechanism is provided on the rear side of the top of the processing table, and a material return mechanism is provided on the top of the processing table, wherein the material return mechanism includes:

[0007] The material stripping assembly includes a sliding rod slidably mounted on the top of the processing table, the top end of the sliding rod is fixedly connected to a sliding plate, the front side of the sliding plate is fixedly connected to a material stripping plate, the bottom end of the sliding rod is fixedly connected to a limit plate, and the bottom of the limit plate is rotatably connected to a rotating rod;

[0008] The drive assembly is mounted inside the processing table.

[0009] Preferably, the drive assembly includes a drive motor installed on the top of the inner cavity of the processing table, one end of the output shaft of the drive motor is fixedly connected to a drive rod through a coupling, and one end of the drive rod is rotatably connected to one end of the rotating rod.

[0010] Preferably, a symmetrical limiting rod is installed on the inner wall of the processing table, and the surface of the limiting rod is slidably connected to the inside of the limiting plate.

[0011] Preferably, a placement table is installed on the top of the processing table, a placement groove is opened on the top of the placement table, and a slide rail is installed on the top of the placement table, and the surface of the slide rail is slidably connected to the inside of the sliding plate.

[0012] Preferably, the stamping and bending mechanism includes a support plate installed on the rear side of the top of the processing table, the top of the support plate is fixedly connected to a hydraulic cylinder, the bottom of the hydraulic cylinder is fixedly connected to a connecting plate through a piston rod, the bottom of the connecting plate is fixedly connected to a symmetrical bending plate, a limiting block is installed on the inner side of the bending plate, and a positioning assembly is provided at the bottom of the connecting plate.

[0013] Preferably, the positioning assembly includes a positioning rod slidably installed inside the connecting plate, the bottom end of the positioning rod is fixedly connected to the positioning plate, the two sides of the positioning plate are slidably connected to the inner surface of the bending plate, and a positioning spring is installed on the top of the positioning plate, and the top end of the positioning spring is fixedly connected to the bottom of the connecting plate.

[0014] Beneficial effects

[0015] The utility model provides a sheet metal punching machine with automatic material removal. Compared with the existing technology, it has the following advantages:

[0016] (1) The sheet metal punching machine with automatic material stripping starts the driving motor to drive the driving rod to rotate. The rotation of the driving rod causes one end of the rotating rod to rotate at one end of the driving rod, and the other end of the rotating rod to rotate at the bottom of the limit plate, so that the limit plate slides on the surface of the limit rod. The sliding of the limit plate drives the sliding rod, the sliding plate and the material stripping plate to slide forward synchronously, and the sheet metal wrapped on the surface of the placement table is pushed out by the material stripping plate. By providing a material stripping mechanism, the material stripping plate is driven by the driving motor to slide back and forth, and the sheet metal wrapped on the surface of the placement table can be pushed by the material stripping plate, thereby realizing the automatic material stripping operation of the sheet metal after processing, thereby improving work efficiency.

[0017] (2) The sheet metal punching machine with automatic material removal drives the piston rod, connecting plate, bending plate and positioning plate to slide downward synchronously by starting the hydraulic cylinder. At this time, the lower surface of the positioning plate first contacts the sheet metal, and the positioning plate presses the sheet metal, so that the positioning rod slides inside the connecting plate, and the positioning spring begins to shrink. Then the bending plate continues to slide downward, and cooperates with the placement table to realize the bending operation of the sheet metal. By providing a stamping and bending mechanism, the positioning plate can be used to position the sheet metal placed in the placement slot before the sheet metal is processed, so as to avoid the sheet metal from shaking during the processing, thereby affecting the quality of the finished product. The positioning plate can be automatically reset by the influence of the elasticity of the positioning spring, which is convenient for subsequent processing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the external structure of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the material stripping assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the processing table of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of the punching and bending mechanism of the utility model.

[0022] In the figure: 1-processing table, 2-stamping and bending mechanism, 21-support plate, 22-hydraulic cylinder, 23-piston rod, 24-connecting plate, 25-bending plate, 26-limiting block, 27-positioning assembly, 271-positioning rod, 272-positioning plate, 273-positioning spring, 3-material return mechanism, 31-material return assembly, 311-sliding rod, 312-sliding plate, 313-material return plate, 314-limiting plate, 315-rotating rod, 32-driving assembly, 321-driving motor, 322-driving rod, 4-limiting rod, 5-placing table, 6-slide rail. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 , this utility model provides two technical solutions:

[0025] Example 1

[0026] A sheet metal punching machine with automatic material stripping includes a processing table 1, a punching and bending mechanism 2 is provided on the rear side of the top of the processing table 1, and a material stripping mechanism 3 is provided on the top of the processing table 1. The material stripping mechanism 3 includes:

[0027] The material stripping assembly 31 includes a sliding rod 311 slidably mounted on the top of the processing table 1. A sliding groove is provided on the top of the processing table 1. The sliding rod 311 slides on the inner surface of the sliding groove. The top of the sliding rod 311 is fixedly connected to a sliding plate 312. The front side of the sliding plate 312 is fixedly connected to a material stripping plate 313. Two groups of material stripping plates 313 are provided, and their inner sides are in contact with the surface of the placement table 5. The bottom end of the sliding rod 311 is fixedly connected to a limiting plate 314. The bottom of the limiting plate 314 is rotatably connected to a rotating rod 315.

[0028] The drive assembly 32 includes a drive motor 321 installed on the top of the inner cavity of the processing table 1. The drive motor 321 is a three-phase asynchronous motor and is connected to the external circuit through wires. One end of the output shaft of the drive motor 321 is fixedly connected to the drive rod 322 through a coupling. One end of the drive rod 322 is rotatably connected to one end of the rotating rod 315. A symmetrical limit rod 4 is installed on the inner wall of the processing table 1. The limit rod 4 is used to limit the limit plate 314. The surface of the limit rod 4 is slidably connected to the inside of the limit plate 314. A placement table 5 is installed on the top of the processing table 1. A placement groove is provided on the top of the placement table 5. The placement groove is used to place the sheet metal to be processed. A slide rail 6 is installed on the top of the placement table 5. The slide rail 6 is used to limit the sliding plate 312. The surface of the slide rail 6 is connected to the inner surface of the limit plate 314. The internal sliding connection of the sliding plate 312 drives the driving rod 322 to rotate by starting the driving motor 321. The rotation of the driving rod 322 causes one end of the rotating rod 315 to rotate at one end of the driving rod 322, and the other end of the rotating rod 315 rotates at the bottom of the limit plate 314, so that the limit plate 314 slides on the surface of the limit rod 4. The sliding of the limit plate 314 drives the sliding rod 311, the sliding plate 312 and the stripping plate 313 to slide forward synchronously, and the sheet metal wrapped on the surface of the placing table 5 is pushed out by the stripping plate 313. By providing the stripping mechanism 3, the stripping plate 313 is driven by the driving motor 321 to slide back and forth, and the sheet metal wrapped on the surface of the placing table 5 can be pushed by the stripping plate 313, thereby realizing the automatic stripping operation of the sheet metal after processing, thereby improving work efficiency.

[0029] Example 2

[0030] The main differences from Example 1 are:

[0031] The bottom of the hydraulic cylinder 22 is fixedly connected to the connecting plate 24 through a piston rod 23, and the piston rod 23 slides inside the support plate 21. The bottom of the connecting plate 24 is fixedly connected to a symmetrical bending plate 25. A limit block 26 is installed on the inner side of the bending plate 25. A positioning assembly 27 is provided at the bottom of the connecting plate 24. The positioning assembly 27 includes a positioning rod 271 slidably installed inside the connecting plate 24. The bottom end of the positioning rod 271 is fixedly connected to a positioning plate 272. The initial position of the positioning plate 272 is slightly lower than the bending plate 25, so that the positioning plate 272 can first contact the sheet metal and position the sheet metal. The two sides of the positioning plate 272 are slidably connected to the inner surface of the bending plate 25, and the top of the positioning plate 272 is installed with a positioning spring 27. The top of the positioning spring 273 is fixedly connected to the bottom of the connecting plate 24, and the hydraulic cylinder 22 is started to drive the piston rod 23, the connecting plate 24, the bending plate 25 and the positioning plate 272 to slide downward synchronously. At this time, the lower surface of the positioning plate 272 first contacts the sheet metal part, and the positioning plate 272 presses the sheet metal part, so that the positioning rod 271 slides inside the connecting plate 24, and the positioning spring 273 begins to contract. Then the bending plate 25 continues to slide downward, cooperating with the placing table 5 to realize the bending operation of the sheet metal part. By providing the stamping bending mechanism 2, the positioning plate 272 can be used to position the sheet metal part placed in the placement groove before the sheet metal part is processed, so as to avoid the sheet metal part from shaking during the processing, thereby affecting the quality of the finished product, and through the influence of the elasticity of the positioning spring 273, the positioning plate 272 can be automatically reset, which is convenient for subsequent processing operations. At the same time, the contents not described in detail in this specification belong to the existing technology well known to those skilled in the art.

[0032] During operation, first place the sheet metal to be processed in the placement groove, and start the hydraulic cylinder 22 to drive the piston rod 23, the connecting plate 24, the bending plate 25 and the positioning plate 272 to slide downward synchronously. At this time, the lower surface of the positioning plate 272 first contacts the sheet metal, and the positioning plate 272 presses the sheet metal, so that the positioning rod 271 slides inside the connecting plate 24, and the positioning spring 273 begins to contract. Then the bending plate 25 continues to slide downward, cooperating with the placement table 5 to realize the bending operation on the sheet metal. After the sheet metal is bent, it will be wrapped around the placement table 5. The surface, at this time, by starting the driving motor 321 to drive the driving rod 322 to rotate, the rotation of the driving rod 322 causes one end of the rotating rod 315 to rotate at one end of the driving rod 322, and the other end of the rotating rod 315 rotates at the bottom of the limiting plate 314, so that the limiting plate 314 slides on the surface of the limiting rod 4, and the sliding of the limiting plate 314 drives the sliding rod 311, the sliding plate 312 and the stripping plate 313 to slide forward synchronously, and the sheet metal wrapped on the surface of the placement table 5 is pushed out through the stripping plate 313, thereby realizing the automatic stripping operation of the sheet metal.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal punching machine with automatic material stripping, comprising a processing table (1), characterized in that: A punching and bending mechanism (2) is provided on the rear side of the top of the processing table (1), and a material return mechanism (3) is provided on the top of the processing table (1). The material return mechanism (3) includes: The material stripping assembly (31) comprises a sliding rod (311) slidably mounted on the top of the processing table (1), the top end of the sliding rod (311) is fixedly connected to a sliding plate (312), the front side of the sliding plate (312) is fixedly connected to a material stripping plate (313), the bottom end of the sliding rod (311) is fixedly connected to a limiting plate (314), and the bottom of the limiting plate (314) is rotatably connected to a rotating rod (315); A drive assembly (32) is included and is mounted inside the processing table (1).

2. The sheet metal punching machine with automatic material stripping according to claim 1, characterized in that: The driving assembly (32) includes a driving motor (321) mounted on the top of the inner cavity of the processing table (1), one end of the output shaft of the driving motor (321) is fixedly connected to a driving rod (322) through a coupling, and one end of the driving rod (322) is rotatably connected to one end of a rotating rod (315).

3. The sheet metal punching machine with automatic material stripping according to claim 1, characterized in that: A symmetrical limiting rod (4) is installed on the inner wall of the processing table (1), and the surface of the limiting rod (4) is slidably connected to the inside of the limiting plate (314).

4. The sheet metal punching machine with automatic material stripping according to claim 1, characterized in that: A placement table (5) is installed on the top of the processing table (1), a placement groove is opened on the top of the placement table (5), and a slide rail (6) is installed on the top of the placement table (5), and the surface of the slide rail (6) is slidably connected to the inside of the sliding plate (312).

5. The sheet metal punching machine with automatic material stripping according to claim 1, characterized in that: The stamping and bending mechanism (2) includes a support plate (21) installed on the rear side of the top of the processing table (1), the top of the support plate (21) is fixedly connected to a hydraulic cylinder (22), the bottom of the hydraulic cylinder (22) is fixedly connected to a connecting plate (24) via a piston rod (23), the bottom of the connecting plate (24) is fixedly connected to a symmetrical bending plate (25), a limiting block (26) is installed on the inner side of the bending plate (25), and a positioning component (27) is provided at the bottom of the connecting plate (24).

6. The sheet metal punching machine with automatic material stripping according to claim 5, characterized in that: The positioning assembly (27) includes a positioning rod (271) slidably mounted inside the connecting plate (24); the bottom end of the positioning rod (271) is fixedly connected to a positioning plate (272); both sides of the positioning plate (272) are slidably connected to the inner surface of the bending plate (25); a positioning spring (273) is mounted on the top of the positioning plate (272); the top end of the positioning spring (273) is fixedly connected to the bottom of the connecting plate (24).

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