Stamping traceless bending structure

Abstract

The utility model relates to the technical field of bending processing, and discloses a stamping traceless bending structure which comprises a forming punch, a mounting base, a swing block mounting seat, a floating part, a spring and a forming rotary swing block, the forming rotary swing block is arranged on the side of the floating part, a round flat veneer is arranged on one side of the upper portion of a round bar of the forming rotary swing block, and the forming rotary swing block is arranged on the mounting base. In the forming process, the round and flat attaching face makes contact with the forming extrusion side of the workpiece material piece, the forming rotary swing block is of a rotary installation structure, it is ensured that the round and flat attaching face makes stable contact with the forming extrusion side of the workpiece material piece in the forming process, and the surface of a machined product is smooth and free of bending die marks; and a reset structure is arranged on the side, making contact with the floating part, of the forming rotary swing block, after forming machining is completed, reset pushing is conducted on the floating part through a spring, in the upward moving process of the floating part, through cooperation of a reset pushing groove and a reset pushing block, pushing reset of the forming rotary swing block can be achieved, and the machining efficiency of the device can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending processing, in particular to a stamping seamless bending structure. Background Art

[0002] Bending dies are tools used to shape and process sheet materials. This tool is composed of various parts. Different dies are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the formed material. It is used to make the blank into a part with a specific shape and size under the pressure of the bending machine.

[0003] The bending structure completes the forming process of the workpiece through the stamping and contact deformation between the die and the blank. When the traditional bending method is used, bending marks will be left between the forming contact side of the blank and the die due to deformation and extrusion during product processing. The product will always have bending marks to varying degrees, which will affect the appearance of the product and reduce the quality of the product. Utility Model Content

[0004] The utility model aims to provide a stamping seamless bending structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stamping seamless bending structure, comprising a bending mechanism for processing a workpiece sheet, the bending mechanism comprising a forming punch, a mounting base, a pendulum block mounting seat, a floating part, a spring and a forming rotating pendulum block;

[0006] The floating part is movably installed in the middle of the mounting base and the pendulum block mounting seat, the spring is arranged at the lower part of the floating part, the molded rotating pendulum block is rotatably installed on the upper part of the pendulum block mounting seat, the side of the molded rotating pendulum block is provided with a round flat surface, and the contact side of the floating part and the molded rotating pendulum block is provided with a reset push groove and a reset push block.

[0007] Preferably, the pendulum block mounting seat is fixedly mounted on one side of the mounting base by bolts, the workpiece sheet is placed and mounted on the upper part of the pedestal formed by the mounting base and the pendulum block mounting seat, and the forming punch is located directly above the workpiece sheet.

[0008] Preferably, a floating slide groove is provided in the middle of the above-mentioned mounting base and the pendulum block mounting seat, the floating slide groove is adapted to the floating part, and the floating part is slidably installed on the inner side of the floating slide groove.

[0009] Preferably, the spring is installed in abutment with the lower part of the floating part, and the top end of the spring is connected in abutment with the bottom side of the floating part.

[0010] Preferably, a rotating shaft is provided on the side of the molded rotating pendulum block, and the molded rotating pendulum block is rotatably mounted on the upper part of the pendulum block mounting seat via the rotating shaft.

[0011] Preferably, the above-mentioned forming rotating pendulum block is cylindrical, and the circular flat surface is arranged on the side of the forming rotating pendulum block, and the circular flat surface is in contact with the forming extrusion side of the workpiece sheet.

[0012] Preferably, the reset push block is fixedly arranged on the top side of the floating part, the reset push groove is opened in the middle of the molded rotating pendulum block, and the reset push block is engaged with the reset push groove.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] This bending structure adopts a markless processing method, drawing on the flap bending method, a forming rotating pendulum block is arranged on the side of the floating part, and a round flat veneer is arranged on the upper side of the round rod of the forming rotating pendulum block. During the forming process, the round flat veneer is contacted with the forming extrusion side of the workpiece sheet. The forming rotating pendulum block adopts a rotating installation structure, and the forming process ensures that the round flat veneer is in stable contact with the forming extrusion side of the workpiece sheet, which can realize the processing of the product surface without bending marks. The surface of the processed product is smooth and free of bending mold marks, so that the appearance and quality of the product can be significantly improved, and a reset structure is set on the contact side of the forming rotating pendulum block and the floating part. After the forming process is completed, the floating part is reset and pushed by a spring. In the process of moving the floating part upward, the cooperation of the reset push groove and the reset push block can realize the pushing and resetting of the forming rotating pendulum block. The structure is simple and the operation is reliable. The reset process is automatic, which can effectively improve the processing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the forming punch of the utility model before pressing down;

[0017] Figure 2 This is a schematic diagram of the structure of the forming punch of the utility model after being pressed down;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the molded rotating pendulum block of the utility model;

[0019] Figure 4It is a three-dimensional structural diagram of the floating lifting part of the utility model;

[0020] Figure 5 It is a schematic diagram of the state of the forming rotating pendulum block when the punch of the utility model contacts the sheet;

[0021] Figure 6 It is a schematic diagram of the state of the forming rotating pendulum block when the sheet of the utility model is bent at 45 degrees;

[0022] Figure 7 It is a schematic diagram of the state of the rotating pendulum block formed after the sheet is bent in the utility model;

[0023] Figure 8 It is a schematic diagram of the installation structure of the molding rotating pendulum block and the floating lifting parts during reset of the utility model;

[0024] Fig. 9 It is a schematic diagram of the installation structure of the forming rotating pendulum block and the floating lifting parts during forming of the utility model.

[0025] Explanation of the reference numerals: 1. Workpiece sheet; 2. Forming punch; 3. Mounting base; 4. Pendulum block mounting seat; 5. Floating part; 6. Spring; 7. Forming rotating pendulum block; 8. Round flat veneer; 9. Reset push groove; 10. Reset push block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0028] Example

[0029] See also Figure 1-9 The utility model provides a technical solution: a stamping seamless bending structure, including a bending mechanism for processing a workpiece sheet 1, the bending mechanism includes a forming punch 2, a mounting base 3, a pendulum block mounting seat 4, a floating part 5, a spring 6 and a forming rotating pendulum block 7, as shown in the attached Figure 1As shown, the pendulum block mounting seat 4 is fixedly installed on one side of the mounting base 3 by bolts to form a lower die base, and the workpiece sheet 1 is placed and installed on the upper part of the base formed by the mounting base 3 and the pendulum block mounting seat 4. The forming punch 2 is connected to the driving structure of the stamping machine and is located directly above the workpiece sheet 1. The bending process of the workpiece sheet 1 is completed by pressing down.

[0030] In order to facilitate the installation of the floating part 5, a floating groove is arranged in the middle part of the mounting base 3 and the pendulum block mounting seat 4. The floating groove is adapted to the floating part 5. The floating part 5 is slidably installed on the inner side of the floating groove and can slide in the vertical direction. In order to facilitate the rebound and reset of the floating part 5, a spring 6 is arranged at the lower part of the floating part 5. The spring 6 is installed in contact with the lower part of the floating part 5. The top end of the spring 6 is connected in contact with the bottom side of the floating part 5, which can provide an elastic driving force for the upward movement and reset of the floating part 5.

[0031] As attached Figure 3 As shown, the molded rotating pendulum block 7 is columnar. In order to facilitate the rotational installation of the molded rotating pendulum block 7, a rotating shaft is provided on the side of the molded rotating pendulum block 7. The molded rotating pendulum block 7 is rotatably installed on the upper part of the pendulum block mounting seat 4 through the rotating shaft. In order to eliminate the bending mold mark, as shown in the attached Figure 3 As shown, a round flat veneer 8 is arranged on the side of the forming rotating pendulum block 7. The round flat veneer 8 is arranged on the side of the forming rotating pendulum block 7. The round flat veneer 8 is in contact with the forming extrusion side of the workpiece sheet 1. During the forming process, the round flat veneer 8 contacts the forming extrusion side of the workpiece sheet 1. The forming rotating pendulum block 7 adopts a rotating installation structure. Figure 5-7 As shown, it is a schematic diagram of the position status of the forming rotating pendulum block 7 and the workpiece sheet 1 during the processing. During the forming process, it is ensured that the round flat veneer 8 is always in stable contact with the forming extrusion side of the workpiece sheet 1, so that the surface of the product can be processed without bending marks. The surface of the processed product is smooth and has no bending mold marks, so that the appearance and quality of the product can be significantly improved.

[0032] In order to realize the automatic reset of the forming rotating pendulum block 7, a reset push groove 9 and a reset push block 10 are provided on the contact side of the floating part 5 and the forming rotating pendulum block 7, as shown in the attached Figure 4 As shown, the reset push block 10 is fixedly arranged on the top side of the floating part 5, and the reset push groove 9 is opened in the middle of the forming rotating swing block 7. The reset push block 10 is engaged with the reset push groove 9. After the forming process is completed, the spring 6 is used to reset the floating part 5. Figure 8-9 As shown, during the upward movement of the floating part 5, the cooperation between the reset push groove 9 and the reset push block 10 can realize the push reset of the forming rotating pendulum block 7. The reset process is automatic and the actual production speed can reach 320 pieces / minute.

[0033] Working principle or structural principle, when working, keep the mold in an open state, then send the workpiece sheet 1 to the required position, after completion, the forming punch 2 moves downward under the drive of the punch press and contacts the workpiece sheet 1, then the forming punch 2 continues to move downward, and the workpiece sheet 1 moves downward and contacts the forming rotating pendulum block 7 on the upper part of the pendulum block mounting seat 4 under the downward pressure of the forming punch 2, and the round flat surface 8 on the side of the forming rotating pendulum block 7 contacts with the forming extrusion side of the workpiece sheet 1, and continues to move downward, during the forming process, the forming rotating pendulum block 7 starts to rotate under the action of the forming punch 2 and the workpiece sheet 1, and during the rotation, the round flat surface 8 contacts with the forming extrusion side of the workpiece sheet 1 all the time, and the forming punch 2 continues to drive the workpiece sheet 1 downward, and acts to the 90-degree state, thereby completing the forming process of the workpiece sheet 1;

[0034] After the bending forming is completed, the punch press moves upward, and the floating part 5 floats upward under the thrust of the spring 6. The reset push block 10 pushes up the reset push groove 9 on the upper part of the forming rotating pendulum block 7, so that the forming rotating pendulum block 7 rotates and resets. After rising to a certain distance, the floating part 5 reaches the upper stop position and stops continuing to float upward. At the same time, the forming rotating pendulum block 7 rotates to the initial position, completing the reset operation and completing the bending process.

[0035] In summary, the present bending structure adopts a markless processing method, drawing on the flap bending method, a forming rotating pendulum block 7 is arranged on the side of the floating part 5, and a round flat veneer 8 is arranged on the upper side of the round rod of the forming rotating pendulum block 7. During the forming process, the round flat veneer 8 contacts the forming extrusion side of the workpiece sheet 1. The forming rotating pendulum block 7 adopts a rotating installation structure, and the forming process ensures that the round flat veneer 8 is in stable contact with the forming extrusion side of the workpiece sheet 1, so that the surface of the product can be processed without bending marks. The surface of the processed product is smooth and free of bending mold marks, so that the appearance and quality of the product can be significantly improved, and a reset structure is arranged on the contact side between the forming rotating pendulum block 7 and the floating part 5. After the forming process is completed, the spring 6 is used to reset and push the floating part 5. During the upward movement of the floating part 5, the cooperation of the reset push groove 9 and the reset push block 10 can realize the pushing and resetting of the forming rotating pendulum block 7. The structure is simple and the operation is reliable. The reset process is automatic, which can effectively improve the processing efficiency of the device.

[0036] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0037] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stamping seamless bending structure, comprising a bending mechanism for processing a workpiece sheet (1), characterized in that: The bending mechanism comprises a forming punch (2), a mounting base (3), a pendulum block mounting base (4), a floating part (5), a spring (6) and a forming rotating pendulum block (7); The floating part (5) is movably mounted on the middle part of the mounting base (3) and the pendulum block mounting seat (4), the spring (6) is arranged at the lower part of the floating part (5), the molded rotating pendulum block (7) is rotatably mounted on the upper part of the pendulum block mounting seat (4), the side of the molded rotating pendulum block (7) is provided with a round flat surface (8), and the contact side of the floating part (5) and the molded rotating pendulum block (7) is provided with a reset push groove (9) and a reset push block (10).

2. A stamping seamless bending structure according to claim 1, characterized in that: The pendulum block mounting seat (4) is fixedly mounted on one side of the mounting base (3) by means of bolts, the workpiece sheet (1) is placed and mounted on the upper part of a pedestal formed by the mounting base (3) and the pendulum block mounting seat (4), and the forming punch (2) is located directly above the workpiece sheet (1).

3. A stamping seamless bending structure according to claim 2, characterized in that: A floating slide groove is provided in the middle of the mounting base (3) and the swing block mounting seat (4), the floating slide groove is matched with the floating part (5), and the floating part (5) is slidably mounted on the inner side of the floating slide groove.

4. The stamping seamless bending structure according to claim 3, characterized in that: The spring (6) is installed in abutment with the lower part of the floating part (5), and the top end of the spring (6) is connected in abutment with the bottom side of the floating part (5).

5. The stamping seamless bending structure according to claim 1, characterized in that: A rotating shaft is provided on the side of the molded rotating pendulum block (7), and the molded rotating pendulum block (7) is rotatably mounted on the upper part of the pendulum block mounting seat (4) via the rotating shaft.

6. The stamping seamless bending structure according to claim 5, characterized in that: The forming rotary pendulum block (7) is columnar, the circular flat surface (8) is arranged on the side of the forming rotary pendulum block (7), and the circular flat surface (8) fits the forming extrusion side of the workpiece sheet (1).

7. The stamping seamless bending structure according to claim 6, characterized in that: The reset push block (10) is fixedly arranged on the top side of the floating part (5), the reset push groove (9) is opened in the middle of the molded rotating pendulum block (7), and the reset push block (10) is engaged with the reset push groove (9).

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