Adjustable bending structure for part machining

Abstract

The utility model discloses an adjustable bending structure used for part machining, and particularly relates to the technical field of bending, the adjustable bending structure comprises an extrusion assembly, a lower die assembly and a pull-down mechanism, the lower die assembly is placed below the extrusion assembly, a buffer plate is placed below the lower die assembly, a fixing module is installed below the buffer plate, and the pull-down mechanism is arranged below the fixing module. The adjustable bending structure comprises a fixing module and a buffer plate, the fixing module and the lower die assembly are connected through a pull-down mechanism, the buffer plate comprises a spring A and a spring B, the buffer plate and the fixing module are installed and connected through the spring A, and the spring B is installed on the outer wall of the buffer plate. And the rubber film is adhered to the upper part of the lower template, so that the smooth surface of the sheet metal part can be protected, the service life of the part is prolonged, and various protection components capable of being automatically adjusted are additionally arranged below the lower template.

Description

Technical Field

[0001] This utility model relates to the field of bending structure technology, and more specifically, to an adjustable bending structure for parts processing. Background Technology

[0002] A bending structure is a machine part processing structure with various dies used for compressing, stretching, and bending sheet metal. During operation, the machine drives the bending structure to compress the sheet metal, shaping it into the parts needed for manufacturing the machine. Bending structures are mainly used for processing and manufacturing sheet metal parts.

[0003] A search revealed that application number CN201210204687.1 discloses a metal plate bending structure with a groove at the bending line. The groove at the bending line serves as a guide, making bending easier and less strenuous; simultaneously, after bending, it creates a smaller radius corner, resulting in a refined and aesthetically pleasing bend. In the process of developing this utility model, the inventors discovered the following problems with the existing technology:

[0004] Existing bending structures are prone to causing cracks or significant discrepancies between the sheet metal and the parts to be manufactured when processing sheet metal. Furthermore, the surfaces of the manufactured parts may exhibit minute friction marks or pits due to extrusion. These issues are fatal for precision instruments, directly or indirectly causing part failure or shortening their lifespan. This poses significant drawbacks to machine design. Long-term use also results in substantial waste of sheet metal. Moreover, conventional bending structures produce parts with limited form factors; they can only produce one type of part or a specific part of a part. This necessitates numerous different bending mechanisms and associated hydraulic systems, leading to substantial costs.

[0005] Therefore, an adjustable bending structure for parts processing is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an adjustable bending structure for parts processing to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable bending structure for parts processing, comprising an extrusion assembly, a lower die assembly, and a tensioning mechanism. The lower die assembly is placed below the extrusion assembly, and a buffer plate is placed below the lower die assembly. A fixing module is installed below the buffer plate, and the fixing module and the lower die assembly are connected by the tensioning mechanism. The buffer plate includes spring A and spring B, and the buffer plate and the fixing module are connected by spring mounting A. Spring B is installed on the outer wall of the buffer plate.

[0008] Preferably, the tensioning mechanism includes a mounting head A, a mounting head B, a mounting rod, and a spring C, wherein the mounting rod is mounted below the mounting head A, the mounting head B is mounted below the mounting rod, and the spring C is mounted on the outer wall of the mounting rod.

[0009] Preferably, the extrusion assembly includes a threaded joint, a threaded connecting post, and a fixing post, wherein the threaded connecting post has a threaded joint at its top and a fixing post is installed below the threaded connecting post.

[0010] Preferably, the lower mold assembly includes a semi-circular lower mold shell, a rubber membrane, a lower template, and a connecting plate, wherein the lower template is installed below the rubber membrane, the connecting plate is installed on the side wall of the lower template, and the semi-circular lower mold shell is installed below the lower template.

[0011] Preferably, the extrusion assembly further includes a fixed plate, an upper extrusion module, a connecting rod, and an upper extrusion die column, wherein the upper extrusion module is installed below the fixed plate, the connecting rod is installed below the upper extrusion module, and the upper extrusion module is installed on the outer wall of the connecting rod.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. Compared with the prior art, this adjustable bending structure for parts processing allows the bending assembly to be used in two ways by installing two extrusion upper dies in the pressure assembly. When the sheet metal needs to work by extruding the upper die column, it is only necessary to start the hydraulic device connected to the extrusion structure. When the sheet metal needs to work by extruding the upper module to extrude the desired part, it is only necessary to remove the bolts fixing the upper module and the connecting rod, remove the part below the connecting rod, then remove the bolts connecting the mounting head A above the tensioning mechanism and the lower die assembly, remove the upper die assembly, and finally remove the bolts between the buffer plate and the fixed block and remove the buffer plate. In this way, the sheet metal can be placed between the groove of the upper extrusion module and the fixed block of the upper die assembly and bent into another simple part.

[0014] 2. Compared with the prior art, this adjustable bending structure for parts processing has a rubber membrane bonded in the lower die assembly, which reduces the friction between the sheet metal and the lower die plate when the sheet metal is extruded, resulting in a smooth surface of the manufactured parts. A buffer plate is bolted to the bottom of the lower die assembly. Because the extrusion upper die column can cause the sheet metal to deform to a large extent during the extrusion process, the sheet metal may not be strong enough to withstand the pressure of the extrusion upper die column, exceeding the critical value for sheet metal fracture and causing it to break. The buffer plate and the semi-circular lower die shell in the lower die assembly can relieve the pressure of the extrusion upper die column on the sheet metal, allowing the sheet metal to pass smoothly through the extrusion upper die column and be made into the required parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an adjustable bending structure for parts processing according to the present invention.

[0016] Figure 2 This is a schematic diagram of the tensioning mechanism of an adjustable bending structure for parts processing according to the present invention.

[0017] Figure 3 This is a schematic diagram of an adjustable bending extrusion assembly for parts processing according to the present invention.

[0018] Figure 4 This is a schematic diagram of the lower die assembly of an adjustable bending structure for parts processing according to the present invention.

[0019] The attached figures are labeled as follows: 1. Extrusion assembly; 2. Lower die assembly; 3. Tensioning mechanism; 4. Threaded connecting column; 5. Fixing plate; 6. Upper extrusion module; 7. Connecting rod; 8. Upper extrusion die column; 9. Spring A; 10. Semi-circular lower die shell; 11. Fixing module; 12. Spring B; 13. Mounting head A; 14. Mounting head B; 15. Mounting rod; 16. Spring C; 17. Threaded joint; 18. Fixing column; 19. Rubber membrane; 20. Lower template; 21. Connecting plate; 22. Buffer plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] As attached Figures 1 to 4An adjustable bending structure for parts processing is shown, comprising an extrusion assembly 1, a lower die assembly 2, and a tensioning mechanism 3. The lower die assembly 2 is placed below the extrusion assembly 1, and a buffer plate 22 is placed below the lower die assembly 2. A fixing module 11 is installed below the buffer plate 22, and the fixing module 11 and the lower die assembly 2 are connected by the tensioning mechanism 3. The buffer plate 22 includes springs A9 and B12, and the buffer plate 22 and the fixing module 11 are connected by spring A9. Spring B12 is installed on the outer wall of the buffer plate 22.

[0023] In this configuration: When the adjustable bending structure is connected to the machine and in operation, the extrusion assembly 1 applies downward pressure along with the hydraulic device. Below the extrusion assembly 1 is the lower die assembly 2, on which the sheet metal to be processed is placed. When the extrusion assembly 1 contacts the surface of the sheet metal, it applies pressure, causing the sheet metal to deform to varying degrees. Below the lower die assembly 2 is a buffer plate 22. When the pressure on the sheet metal is too high, the lower die assembly 2 transfers the pressure to the buffer plate 22, causing it to deform downwards. The buffer plate 22 contains springs A9 and B12. This downward deformation generates a force that attempts to return the buffer plate 22 to its original state. This force is opposite in direction to the force generated by the extrusion assembly 1, thus reducing the pressure on the sheet metal. The combined force at a local location reduces the local pressure, making it less prone to cracking on the sheet metal surface. A fixing module 11 is placed below the buffer plate 22. The module can fix the movement direction of the bending structure. The fixing module 11 and the lower mold assembly 2 are connected by a tensioning mechanism 3. The tensioning mechanism 3 can restore the lower mold assembly 2, which has been deformed by the extrusion assembly 1, to its original state. The buffer plate 22 and the fixing module 11 are connected by a spring A9. One side of the spring A9 is bolted to the outer wall of the buffer plate 22, and the other side is bolted to the outer wall of the fixing module 11. A spring B12 is bolted to the outer wall of the buffer plate 22. When the buffer plate 22 is deformed by the force transmitted from above, the springs A9 and B12 can quickly restore the buffer plate 22 to its original state.

[0024] Example 2

[0025] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0026] In a preferred embodiment, the tensioning mechanism 3 includes a mounting head A13, a mounting head B14, a mounting rod 15, and a spring C16. The mounting head A13 is located above the tensioning mechanism 3 and is bolted to the outer wall of the lower mold assembly 2. The mounting rod 15 is welded to the lower part of the mounting head A13, and the mounting head B14 is welded to the lower part of the mounting rod 15. The spring C16 is mounted on the outer wall of the mounting rod 15. When the lower mold assembly 2 is subjected to pressure, it generates a torque to both sides. The mounting head A13 will deflect laterally due to the transmission of this torque. The offset is transmitted to the mounting rod 15. The lateral movement of the mounting rod 15 will cause the mounting head B14 to shift, and the lateral movement of the mounting rod 15 will squeeze the spring C16 on the outer wall of the mounting rod 15. The spring C16 will deform due to the compression, but the spring C16 wants to maintain its original state, so the spring will generate a force opposite to the compression of the mounting rod 15. This force will act on the mounting head A13 due to the contact with the mounting rod 15. The mounting head A13 will transmit the force received to the lower mold assembly 2 in the form of contact, so that the lower mold assembly 2 can return to its original state after use.

[0027] In a preferred embodiment, the extrusion assembly 1 includes a threaded connector 17, a threaded connecting post 4, a fixed post 18, a fixed plate 5, an upper extrusion module 6, a connecting rod 7, and an upper extrusion die post 8. The threaded connecting post 4 has a threaded connector 17 cut into its top, and the fixed post 18 is installed below the threaded connecting post 4 by bolts. The threaded connector 17 is cut into the center of the top of the threaded connecting post 4. When the extrusion assembly 1 needs to work, the threaded connecting post 4 of the extrusion assembly 1 and the hydraulic device are threadedly connected through the threaded connector 17. The fixed post 18 below the threaded connecting post 4 serves to fix the connection.

[0028] In a preferred embodiment, the lower mold assembly 2 includes a semi-circular lower mold shell 10, a rubber mold, a lower template 20, and a connecting plate 21. A rubber membrane 19 is bonded to the upper part of the lower template 20. The rubber membrane 19 can reduce the friction caused by pressure on the sheet metal surface during processing, making the surface of the manufactured sheet metal parts smooth and free of pits and bumps. The lower template 20 acts as a mold in the sheet metal processing process for shaping the sheet metal. The connecting plate 21 is bolted to the side of the lower template 20. The connecting plate 21 can connect two lower templates 20 and improve the deformation capacity of the lower template 20. The semi-circular lower mold shell 10 is bolted to the lower part of the lower template 20. The semi-circular lower mold shell 10 can transmit the force on the lower template 20 by using one side of the lower template 20 as a lever arm to form a torque. The lower part of the semi-circular lower mold shell 10 is relatively smooth and will not wear excessively due to long-term use.

[0029] In a preferred embodiment, an extrusion upper module 6 is bolted to the bottom of the fixing plate 5. The extrusion upper module 6 can form a new bending structure with the groove above the fixing block, so that the sheet metal can be processed into new parts or the processed sheet metal can be processed again. A connecting rod 7 is bolted to the bottom of the extrusion upper module 6. The connecting rod 7 can connect the extrusion upper module 6 and the extrusion upper die column 8. The extrusion upper die column 8 is bolted to the bottom of the connecting rod 7. The extrusion upper die column 8 and the lower template 20 form a bending structure to process the sheet metal.

[0030] The working process of this utility model is as follows: The adjustable bending structure includes an extrusion assembly 1, a lower die assembly 2, and a tensioning mechanism 3. When the adjustable bending structure and the machine are connected by a threaded joint 17 at the center of the top of the threaded connecting column 4 and are in operation, the extrusion assembly 1 will apply downward pressure along with the hydraulic device. The extrusion assembly 1 includes a threaded joint 17, a threaded connecting column 4, a fixed column 18, a fixed plate 5, an upper extrusion module 6, a connecting rod 7, and an upper extrusion die column 8. The threaded joint 17 is drilled at the top of the threaded connecting column 4, and the fixed column 18 is installed below the threaded connecting column 4 by bolts. The threaded joint 17 is drilled at the center of the top of the threaded connecting column 4, and the upper extrusion module 6 is installed below the fixed plate 5 by bolts. 6 can form a new bending structure with the groove above the fixed block, allowing the sheet metal to be processed into new parts or to perform secondary processing on the processed sheet metal. A connecting rod 7 is bolted to the lower part of the extrusion plate module 6, connecting the extrusion plate module 6 and the pressure upper die column. An extrusion upper die column 8 is bolted to the lower part of the connecting rod 7. The extrusion upper die column 8 and the lower template 20 form a bending structure to process the sheet metal. However, because the deformation of the sheet metal exceeds the recoverable deformation threshold when the pressure upper die column processes the sheet metal, it is prone to breakage. Therefore, when the pressure upper die column processes the sheet metal, the hydraulic device needs to work slowly to control the pressure between the recoverable and breakage thresholds, and the lower buffer plate 22 and... The semi-circular lower die shell 10 provides protection. When the extrusion assembly 1 needs to operate, the threaded connecting column 4 of the extrusion assembly 1 and the hydraulic device are threaded together through the threaded joint 17. The fixing column 18 below the threaded connecting column 4 serves as a fixed connection. The lower die assembly 2 is placed below the extrusion assembly 1. The lower die assembly 2 includes the semi-circular lower die shell 10, a rubber mold, a lower template 20, and a connecting plate 21. A rubber membrane 19 is installed on the upper part of the lower template 20 by adhesive bonding. The rubber membrane 19 can reduce the friction generated on the sheet metal surface due to pressure during processing, making the surface of the manufactured sheet metal parts smooth and free of pits and bumps. The lower template 20 acts as a mold in the sheet metal processing process, used for shaping the sheet metal. A connecting plate 21 is bolted to the side of the lower mold plate 20. The connecting plate 21 connects the two lower mold plates 20 and improves the deformation capacity of the lower mold plate 20. A semi-circular lower mold shell 10 is bolted to the bottom of the lower mold plate 20. The semi-circular lower mold shell 10 can transfer the force on the lower mold plate 20 to the tensioning mechanism 3 by using one side of the lower mold plate 20 as a lever arm. The bottom of the semi-circular lower mold shell 10 is relatively smooth and will not wear excessively due to long-term use. The sheet metal to be processed is placed on the lower mold assembly 2. When the extrusion assembly 1 contacts the surface of the sheet metal, it will cause pressure on the sheet metal surface. The sheet metal will deform to varying degrees due to the pressure. A buffer plate 22 is placed below the lower mold assembly 2. When the pressure on the sheet metal is too large,The lower die assembly 2 transmits pressure to the buffer plate 22, which deforms downwards under pressure. The buffer plate 22 contains springs A9 and B12. This downward deformation generates a force that attempts to return the buffer plate 22 to its original state. This force is opposite in direction to the force generated by the extrusion assembly 1, thus reducing the resultant force on the sheet metal at localized locations, thereby decreasing localized pressure and making the sheet metal surface less prone to cracking. A fixing module 11 is placed below the buffer plate 22. The fixing module 11 can fix the direction of movement of the bending structure. The fixing module 11 and the lower die assembly 2 are connected by a tensioning mechanism 3. The tensioning mechanism 3 includes a mounting head A13, a mounting head B14, a mounting rod 15, and a spring C16. The mounting head A13 is located at the tensioning point... Above the compression mechanism 3, mounting head A13 is bolted to the semi-circular lower mold shell 10 of the lower mold assembly 2. A mounting rod 15 is welded to the bottom of mounting head A13, and mounting head B14 is welded to the bottom of mounting rod 15. A spring C16 is mounted on the outer wall of mounting rod 15. When the semi-circular lower mold shell 10 is subjected to pressure, it generates a torque to both sides. Mounting head A13 will deflect laterally due to the transmission of this torque, transmitting the offset to mounting rod 15. The lateral movement of mounting rod 15 will cause mounting head B14 to deflect, and the lateral movement of mounting rod 15 will compress the spring C16 on the outer wall of mounting rod 15. The spring C16 will deform due to the compression, but it wants to maintain its original state, so the spring will generate a... A force opposite to the pressing force of the mounting rod 15 is applied to the mounting head A13 due to contact with the mounting rod 15. The mounting head A13 transmits the force to the lower mold assembly 2 through contact, allowing the lower mold assembly 2 to return to its original state after use. The buffer plate 22 and the fixing module 11 are connected by a spring A9. One side of the spring A9 is bolted to the outer wall of the buffer plate 22, and the other side is bolted to the outer wall of the fixing module 11. A spring B12 is bolted to the outer wall of the buffer plate 22. When the buffer plate 22 deforms due to the force transmitted from above, springs A9 and B12 allow the buffer plate 22 to quickly return to its original state. When the sheet metal needs to press the upper mold column 8... During operation, only the hydraulic device connected to the extrusion structure needs to be activated. When the sheet metal needs to be extruded from the upper extrusion module 6 to produce the desired part, simply remove the bolts fixing the upper extrusion module 6 and the connecting rod 7, remove the part below the connecting rod 7, then remove the bolts connecting the mounting head A13 above the tensioning mechanism 3 and the lower die assembly 2, remove the upper die assembly, and finally remove the bolts between the buffer plate 22 and the fixing block, and remove the buffer plate 22. The sheet metal is then placed between the extrusion upper module 6 and the groove of the fixing block in the upper extrusion die assembly, and can be bent into another simple part. Because the upper die assembly performs a light deformation process on the sheet metal, it does not require many buffer protection parts.The above describes the working principle of this adjustable bending structure used in parts processing.

Claims

1. An adjustable bending structure for parts processing, comprising an extrusion assembly (1), a lower die assembly (2), and a drawing mechanism (3), characterized in that: A lower die assembly (2) is placed below the extrusion assembly (1), and a buffer plate (22) is placed below the lower die assembly (2). A fixing module (11) is installed below the buffer plate (22), and the fixing module (11) and the lower die assembly (2) are connected by a tensioning mechanism (3). The buffer plate (22) includes a spring A (9) and a spring B (12), and the buffer plate (22) and the fixing module (11) are connected by the spring A (9). The outer wall of the buffer plate (22) is equipped with a spring B (12).

2. The adjustable bending structure for parts processing according to claim 1, characterized in that: The tensioning mechanism (3) includes a mounting head A (13), a mounting head B (14), a mounting rod (15), and a spring C (16). The mounting rod (15) is mounted below the mounting head A (13), the mounting head B (14) is mounted below the mounting rod (15), and the spring C (16) is mounted on the outer wall of the mounting rod (15).

3. The adjustable bending structure for parts processing according to claim 1, characterized in that: The extrusion assembly (1) includes a threaded joint (17), a threaded connecting post (4), and a fixing post (18), wherein the threaded connecting post (4) has a threaded joint (17) cut at its top and a fixing post (18) installed below the threaded connecting post (4).

4. The adjustable bending structure for parts processing according to claim 1, characterized in that: The lower mold assembly (2) includes a semi-circular lower mold shell (10), a rubber membrane (19), a lower template (20), and a connecting plate (21). The lower template (20) is installed below the rubber membrane (19), and the connecting plate (21) is installed on the side wall of the lower template (20). The semi-circular lower mold shell (10) is installed below the lower template (20).

5. An adjustable bending structure for parts processing according to claim 1, characterized in that: The extrusion assembly (1) also includes a fixed plate (5), an upper extrusion module (6), a connecting rod (7) and an upper extrusion die column (8), and the upper extrusion module (6) is installed below the fixed plate (5), and the connecting rod (7) is installed below the upper extrusion module (6), and the upper extrusion module (6) is installed on the outer wall of the connecting rod (7).

Images