Stamping device for sheet metal part machining

Abstract

The invention relates to the technical field of stamping devices, discloses a stamping device for machining sheet metal parts, and solves the problems that when the sheet metal parts are machined, waste materials are prone to adhering to a punch die when metal materials or sheet materials with large viscosity are machined, the follow-up stamping process is difficult to carry out, and the stamping efficiency is high. The stamping device comprises a hydraulic machine, a pressing plate is fixedly installed at the driving end of the hydraulic machine, two sets of connecting columns are slidably installed in the pressing plate, two sets of sliding grooves are formed in the pressing plate and matched with the connecting columns, and a set of T-shaped grooves is formed between the two sets of sliding grooves. A T-shaped groove is formed in the working box and communicates with the two sets of sliding grooves, a vent groove is formed in the punching head and communicates with the T-shaped groove, a sheet metal part is placed in the working box, the hydraulic machine is started, the connecting column moves upwards, air in the sliding grooves and the T-shaped groove is extruded, and gas impacts residues of the tightly-attached sheet metal part through the vent groove.

Description

Technical Field

[0001] The invention relates to the technical field of stamping devices, in particular to a stamping device for sheet metal processing. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc. Its most notable feature is that the thickness of the same part is consistent. The products processed by the sheet metal industry are called sheet metal parts. The sheet metal parts referred to in different industries are generally different, and are mostly used as the name for assembly.

[0003] The existing Chinese patent with publication number CN114346049A discloses a stamping device for sheet metal processing with efficient automatic loading. The workpiece is placed on the upper end of two pads and located between two baffles. The driving device is started so that the lower end of the driving device pushes the stamping mechanism fixedly connected to it, and the left and right parts of the stamping mechanism slide on the outer surfaces of two support rods respectively. The stamping mechanism stamps and shears the workpiece through the driving device, so that a cylindrical workpiece is stamped out of the workpiece. After stamping, the driving device continuously pushes the lower part of the stamping mechanism to push the cylindrical workpiece into the forming device, and then the internal mechanism of the stamping mechanism pushes the cylindrical workpiece, so that the cylindrical workpiece is stamped and formed according to the shape in the forming device, and the formed part is taken out after forming.

[0004] When the device needs to process sheet metal parts, when processing some metal materials with high viscosity or thin plates, the waste materials are easy to stick to the punch die, making the subsequent stamping process difficult and requiring manual cleaning, which greatly reduces the working efficiency of the device. At the same time, during processing, it is easy to cause sheet metal parts to splash, which can easily cause personal injury.

[0005] Therefore, a punching device for sheet metal processing is needed. Summary of the invention

[0006] In order to solve all or part of the above-mentioned problems, the purpose of the present invention is to provide a stamping device for sheet metal processing, so as to solve the problem proposed in the above-mentioned comparative document technology that when processing sheet metal parts, when processing some metal materials with high viscosity or thin plates, waste materials are easily adhered to the punch die, making the subsequent stamping process difficult to carry out, requiring manual cleaning, and the splashing of sheet metal parts causing injuries to personnel.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stamping device for sheet metal processing, comprising a working box, a protective device is installed inside the working box, a stamping device is installed inside the working box, the stamping device comprises a hydraulic press, a pressing plate is fixedly installed on the driving end of the hydraulic press, two groups of connecting columns are slidably installed inside the pressing plate, a buffer plate is slidably installed on the lower end of the connecting column, a stamping head is fixedly installed on the lower end of the pressing plate, and the stamping head is slidably connected to the buffer plate; two groups of slide grooves are provided inside the pressing plate, the slide grooves match the connecting columns, a group of T-slots are provided between the two groups of slide grooves, the T-slots are connected to the two groups of slide grooves, and a ventilation groove is provided inside the stamping head, and the ventilation groove The groove is connected with the T-slot. When the sheet metal needs to be stamped, the sheet metal is placed in the working box, and the hydraulic press is started to move downward. The sheet metal is punched and opened by the punching head. In order to prevent the sheet metal from sticking to the punching head due to excessive extrusion pressure, the pressure plate drives the two sets of connecting columns to move downward during stamping. When the buffer plate contacts the sheet metal, the buffer plate is close to the sheet metal, the punching head stamps the sheet metal, and the connecting column moves upward. While the connecting column moves upward, the air in the slide groove and the T-slot is squeezed, and the gas is impacted on the close-fitting sheet metal residue through the ventilation groove to prevent the working efficiency of the device from being reduced due to the sticking of the sheet metal.

[0008] Furthermore, a collecting table is fixedly installed inside the working box, and a circular hole 1 is opened at the upper end of the collecting table, and the circular hole 1 matches the punching head. When the punching head punches the sheet metal part, under the action of the hydraulic press, the debris is discharged into the collecting table through the circular hole 1 on the collecting table, so as to prevent the debris from remaining on the collecting table and reducing the working efficiency of the device.

[0009] Furthermore, a collection cabinet is slidably installed inside the collection table, and a handle is fixedly installed on one side of the collection cabinet. When the collection table is full of debris, the operation of the device is stopped, and the collection cabinet is opened by the handle to discharge the debris in a unified manner.

[0010] Furthermore, two groups of support blocks are fixedly installed inside the working box, and clamping blocks are slidably installed on the upper ends of the support blocks. By starting the hydraulic press and moving the pressure plate downward, the clamping blocks on both sides are driven to move inward under the action of the pressure plate to clamp the sheet metal parts in the middle of the working box, thereby preventing the sheet metal parts from being displaced during the stamping process and affecting the precision of the processing.

[0011] Furthermore, extrusion blocks are fixedly installed at both ends of the pressure plate, and the lower end of the extrusion block is arc-shaped. The extrusion block is slidably connected to the clamping block. By starting the hydraulic press and moving downward, the extrusion blocks on both sides are driven to move downward under the action of the pressure plate. Under the action of the extrusion block, the clamping block is squeezed, so that the two groups of clamping blocks extrude and fix the central sheet metal.

[0012] Furthermore, two groups of extrusion plates are fixedly installed inside the working box, and an extrusion block is slidably installed between the two groups of extrusion plates. When the extrusion block moves downward, it slides with the extrusion plates, driving the two groups of clamping blocks to extrude and fix the central sheet metal.

[0013] Furthermore, elastic parts are provided on the outer sides of the two groups of connecting columns, the upper ends of the elastic parts are fixedly connected to the lower ends of the pressure plates, and the lower ends of the elastic parts are fixedly connected to the buffer plates. When stamping is performed, the pressure plates drive the two groups of connecting columns to move downward. When the buffer plates contact the sheet metal parts, the buffer plates are tightly attached to the sheet metal parts under the action of the elastic parts, and at the same time, a certain buffer is provided to the punching head. Then, the sheet metal parts are stamped to prevent the sheet metal parts from being damaged due to excessive pressure from the punching head. After the punching head is stamped, the pressure plate moves upward, and the buffer plate returns to its original state under the action of the elastic parts, preparing for the next buffering.

[0014] Furthermore, a second circular hole is formed on the buffer plate, and the second circular hole matches the punching head. When the sheet metal part is punched, the punching head passes through the second circular hole to punch a hole in the sheet metal part.

[0015] Furthermore, two groups of circular holes three are opened on the buffer plate, and the circular holes three match the connecting columns. The punching head punches the sheet metal part, and the lower end of the connecting column passes through the circular hole three to press against the sheet metal part. As the pressure plate drives the punching head to move downward, the connecting column moves upward, thereby squeezing the air in the slide groove and the T-slot.

[0016] Furthermore, the protective device includes two groups of L-shaped connecting rods, one end of the L-shaped connecting rod is fixedly connected to the working box, the other end of the L-shaped connecting rod is rotatably installed with connecting rod 1, the upper end of connecting rod 1 away from the L-shaped connecting rod is rotatably installed with connecting rod 2, the end of connecting rod 2 away from connecting rod 1 is rotatably installed with a connecting plate, one end of the connecting plate is fixedly connected to the pressure plate, and the lower end of connecting rod 1 away from the L-shaped connecting rod is fixedly installed with a protective plate. When the hydraulic press is started and the pressure plate moves downward, the connecting plate moves downward synchronously, and the connecting plate drives connecting rod 2 to move downward, and connecting rod 2 squeezes connecting rod 1 downward, so that connecting rod 1 drives the protective plate to rotate, thereby protecting the device being stamped to prevent sheet metal residue from splashing due to sudden excessive pressure and causing injury to personnel.

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

[0018] The present invention proposes a stamping device for sheet metal processing. When the sheet metal needs to be stamped, the sheet metal is placed in a working box, and the hydraulic press is started to move downward. The sheet metal is punched and opened by a punching head. In order to prevent the sheet metal from sticking to the punching head due to excessive extrusion pressure, the pressure plate drives two groups of connecting columns to move downward during stamping. When the buffer plate contacts the sheet metal, the buffer plate is close to the sheet metal, the punching head punches the sheet metal, and the connecting column moves upward. While the connecting column moves upward, the air in the squeeze groove and the T-slot is squeezed, and the gas is impacted on the close-fitting sheet metal residue through the ventilation groove, thereby preventing the working efficiency of the device from being reduced due to the sticking of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the working box of the present invention;

[0021] Figure 3 An exploded view of the punching device of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the punching device of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the collecting table and the punching device of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the protective device of the present invention.

[0025] In the figure: 1. working box; 11. collecting table; 111. round hole one; 112. collecting cabinet; 113. handle; 12. supporting block; 13. extrusion plate; 2. punching device; 21. hydraulic press; 22. pressing plate; 221. slide groove; 222. T-slot; 23. punching head; 231. ventilation groove; 24. connecting column; 25. elastic member; 26. buffer plate; 261. round hole three; 262. round hole two; 27. extrusion block; 28. clamping block; 3. protective device; 31. L-shaped connecting rod; 32. connecting plate; 33. connecting rod two; 34. connecting rod one; 35. protective plate. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0028] Combination Figure 1 , Figure 3-Figure 4 A stamping device for sheet metal processing includes a working box 1, a protective device 3 is installed inside the working box 1, a stamping device 2 is installed inside the working box 1, and the stamping device 2 includes a hydraulic press 21, a driving end of the hydraulic press 21 is fixedly installed with a pressing plate 22, two groups of connecting columns 24 are slidably installed inside the pressing plate 22, a buffer plate 26 is slidably installed at the lower end of the connecting column 24, a punching head 23 is fixedly installed at the lower end of the pressing plate 22, and the punching head 23 is slidably connected to the buffer plate 26; two groups of slide grooves 221 are opened inside the pressing plate 22, the slide grooves 221 match the connecting column 24, a group of T-slots 222 are opened between the two groups of slide grooves 221, the T-slots 222 are connected with the two groups of slide grooves 221, and a ventilation groove 231 is opened inside the punching head 23, and the ventilation groove 231 is connected with the T-slot 222. When the sheet metal needs to be punched, the sheet metal is placed in the working box 1, and the hydraulic press 21 is started to move downward. The sheet metal is punched and opened by the punch head 23. In order to prevent the sheet metal from sticking to the punch head 23 due to excessive extrusion pressure, the pressing plate 22 drives the two groups of connecting columns 24 to move downward during stamping. When the buffer plate 26 contacts the sheet metal, the buffer plate 26 is close to the sheet metal, the punch head 23 punches the sheet metal, and the connecting column 24 moves upward. While the connecting column 24 moves upward, the air in the squeeze groove 221 and the T-slot 222 is squeezed, and the gas is impacted on the close-fitting sheet metal residue through the ventilation groove 231, so as to prevent the working efficiency of the device from being reduced due to the sticking of the sheet metal.

[0029] Combination Figure 1-Figure 2 , Figure 5 A collecting table 11 is fixedly installed inside the working box 1. A circular hole 111 is opened at the upper end of the collecting table 11. The circular hole 111 matches the punch head 23. When the punch head 23 punches the sheet metal part, under the action of the hydraulic press 21, the slag is discharged into the collecting table 11 through the circular hole 111 on the collecting table 11 to prevent the slag from remaining on the collecting table 11 and reducing the working efficiency of the device.

[0030] Combination Figure 2 , Figure 5 A collection cabinet 112 is slidably installed inside the collection table 11, and a handle 113 is fixedly installed on one side of the collection cabinet 112. When the collection table 11 is full of debris, the operation of the device is stopped, and the collection cabinet 112 is opened by the handle 113 to discharge the debris in a unified manner.

[0031] Combination Figure 1-Figure 2Two groups of support blocks 12 are fixedly installed inside the working box 1, and a clamping block 28 is slidably installed on the upper end of the support block 12. By starting the hydraulic press 21, when the pressing plate 22 moves downward, the clamping blocks 28 on both sides are driven to move inward under the action of the pressing plate 22 to clamp the sheet metal parts in the middle of the working box 1 to prevent the sheet metal parts from being offset during the stamping process, thereby affecting the precision of the processing.

[0032] Combination Figure 3 Extrusion blocks 27 are fixedly installed at both ends of the pressing plate 22. The lower end of the extrusion block 27 is arc-shaped. The extrusion block 27 is slidably connected to the clamping block 28. By starting the hydraulic press 21 and moving downward, the extrusion blocks 27 on both sides are driven to move downward under the action of the pressing plate 22. Under the action of the extrusion blocks 27, the clamping blocks 28 are squeezed, so that the two groups of clamping blocks 28 squeeze and fix the central sheet metal.

[0033] Combination Figure 2 , Figure 5 Two groups of extrusion plates 13 are fixedly installed inside the working box 1, and an extrusion block 27 is slidably installed between the two groups of extrusion plates 13. When the extrusion block 27 moves downward, it slides with the extrusion plate 13, driving the two groups of clamping blocks 28 to extrude and fix the central sheet metal.

[0034] Combination Figure 3 Elastic parts 25 are provided on the outer sides of the two groups of connecting columns 24. The upper ends of the elastic parts 25 are fixedly connected to the lower ends of the pressing plates 22, and the lower ends of the elastic parts 25 are fixedly connected to the buffer plates 26. When stamping, the pressing plates 22 drive the two groups of connecting columns 24 to move downward. When the buffer plates 26 contact the sheet metal parts, the buffer plates 26 are tightly attached to the sheet metal parts under the action of the elastic parts 25, and at the same time, a certain buffer is provided to the punching head 23. Then, the sheet metal parts are stamped to prevent the sheet metal parts from being damaged due to excessive pressure from the punching head 23. After the punching head 23 is stamped, the pressing plate 22 moves upward, and the buffer plates 26 return to their original state under the action of the elastic parts 25, preparing for the next buffering.

[0035] Combination Figure 3 The buffer plate 26 is provided with a second circular hole 262 , which matches the punch head 23 . When the sheet metal part is punched, the punch head 23 passes through the second circular hole 262 to punch a hole in the sheet metal part.

[0036] Combination Figure 3 Two groups of circular holes 261 are provided on the buffer plate 26, and the circular holes 261 match the connecting column 24. The punch head 23 punches the sheet metal part, and the lower end of the connecting column 24 passes through the circular hole 261 and presses against the sheet metal part. As the pressing plate 22 drives the punch head 23 to move downward, the connecting column 24 moves upward, thereby squeezing the air in the slide groove 221 and the T-slot 222.

[0037] Combination Figure 1 , Figure 6 The protective device 3 includes two groups of L-shaped connecting rods 31, one end of the L-shaped connecting rod 31 is fixedly connected to the working box 1, and the other end of the L-shaped connecting rod 31 is rotatably installed with a connecting rod 1 34, and the upper end of the connecting rod 1 34 away from the L-shaped connecting rod 31 is rotatably installed with a connecting rod 2 33, and the end of the connecting rod 2 33 away from the connecting rod 1 34 is rotatably installed with a connecting plate 32, one end of the connecting plate 32 is fixedly connected to the pressing plate 22, and the lower end of the connecting rod 1 34 away from the L-shaped connecting rod 31 is fixedly installed with a protective plate 35. When the hydraulic press 21 is started and the pressing plate 22 moves downward, the connecting plate 32 moves downward synchronously, and the connecting plate 32 drives the connecting rod 2 33 to move downward, and the connecting rod 2 33 squeezes the connecting rod 1 34 downward, so that the connecting rod 1 34 drives the protective plate 35 to rotate, so as to protect the device being stamped to prevent the sheet metal residue from splashing due to sudden excessive pressure and causing harm to personnel.

[0038] It should be noted that, in the description of the present application, it should be understood that the terms "length", "thickness", "inside", "outside", "axial", "radial", etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, 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 such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises", or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A punching device for sheet metal processing, comprising a working box (1), a protective device (3) installed inside the working box (1), and a punching device (2) installed inside the working box (1), characterized in that: The punching device (2) comprises a hydraulic press (21), a pressing plate (22) is fixedly mounted on the driving end of the hydraulic press (21), two groups of connecting columns (24) are slidably mounted inside the pressing plate (22), a buffer plate (26) is slidably mounted on the lower end of the connecting column (24), a punching head (23) is fixedly mounted on the lower end of the pressing plate (22), and the punching head (23) is slidably connected to the buffer plate (26); Two groups of slide grooves (221) are provided inside the pressing plate (22), the slide grooves (221) match the connecting column (24), a group of T-shaped grooves (222) is provided between the two groups of slide grooves (221), the T-shaped grooves (222) are connected with the two groups of slide grooves (221), and a venting groove (231) is provided inside the punching head (23), the venting groove (231) is connected with the T-shaped groove (222).

2. A punching device for sheet metal processing according to claim 1, characterized in that: A collecting platform (11) is fixedly installed inside the working box (1), and a circular hole (111) is opened at the upper end of the collecting platform (11), and the circular hole (111) matches the punching head (23).

3. A punching device for sheet metal processing according to claim 1, characterized in that: A collection cabinet (112) is slidably mounted inside the collection platform (11), and a handle (113) is fixedly mounted on one side of the collection cabinet (112).

4. A punching device for sheet metal processing according to claim 1, characterized in that: Two groups of support blocks (12) are fixedly installed inside the working box (1), and a clamping block (28) is slidably installed on the upper end of the support block (12).

5. The punching device for sheet metal processing according to claim 1, characterized in that: Extrusion blocks (27) are fixedly mounted on both ends of the pressing plate (22), the lower end of the extrusion block (27) is arc-shaped, and the extrusion block (27) is slidably connected to the clamping block (28).

6. A punching device for sheet metal processing according to claim 1, characterized in that: Two groups of extrusion plates (13) are fixedly installed inside the working box (1), and an extrusion block (27) is slidably installed between the two groups of extrusion plates (13).

7. A punching device for sheet metal processing according to claim 1, characterized in that: The outer sides of the two groups of connecting columns (24) are both provided with elastic members (25), the upper ends of the elastic members (25) are fixedly connected to the lower ends of the pressing plates (22), and the lower ends of the elastic members (25) are fixedly connected to the buffer plates (26).

8. The punching device for sheet metal processing according to claim 1, characterized in that: The buffer plate (26) is provided with a second circular hole (262), and the second circular hole (262) matches the punch head (23).

9. A punching device for sheet metal processing according to claim 5, characterized in that: The buffer plate (26) is provided with two groups of three circular holes (261), and the three circular holes (261) match the connecting pillars (24).

10. The punching device for sheet metal processing according to claim 1, characterized in that: The protective device (3) comprises two groups of L-shaped connecting rods (31), one end of the L-shaped connecting rod (31) is fixedly connected to the working box (1), the other end of the L-shaped connecting rod (31) is rotatably mounted with a connecting rod 1 (34), the upper end of the connecting rod 1 (34) away from the L-shaped connecting rod (31) is rotatably mounted with a connecting rod 2 (33), the end of the connecting rod 2 (33) away from the connecting rod 1 (34) is rotatably mounted with a connecting plate (32), one end of the connecting plate (32) is fixedly connected to the pressure plate (22), and the lower end of the connecting rod 1 (34) away from the L-shaped connecting rod (31) is fixedly mounted with a protective plate (35).

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