Part hole flanging die

Abstract

The utility model provides a part hole flanging die which comprises a hole flanging assembly and a positioning assembly which are oppositely arranged, the hole flanging assembly comprises a punch, the end, close to the positioning assembly, of the punch is connected with a straight body structure, and the straight body structure stretches out in the direction close to the positioning assembly; a part is placed between the positioning assembly and the punch, and a flanging hole is formed in the part; the straight structure penetrates through the flanging hole and is inserted into the positioning assembly, and the straight structure moves in the height direction so as to fold the flanging hole. When the part is subjected to hole flanging machining, the punch is pre-positioned, and the punch is aligned with a flanging hole in the part. And the punch moves downwards, and the straight body structure is inserted into the flanging hole until the straight body structure penetrates through the flanging hole and is inserted into the positioning assembly. The straight body structure can only move up and down in the extending direction of the positioning assembly, inclination caused by uneven stress in the hole flanging process is avoided, and an inclined flanging hole is prevented from cutting an assembly pipeline. The punch keeps moving vertically in the hole flanging process, and the strength of flanged holes and parts is improved.

Description

Technical Field

[0001] This utility model relates to the field of part turning technology, and in particular to a part turning mold. Background Technology

[0002] In the production process of air conditioner condensers and evaporators, the flanging of parts is a key step. There are about 30 flanging holes in the parts, and the flanging height and hole diameter tolerances are relatively high. The hole diameter tolerance is required to be ±0.00 mm and ±0.05 mm, and the flanging height, including the material, is required to be 2.3 mm, with a height tolerance of ±0.1 mm and ±0.1 mm.

[0003] However, traditional flanging processes are usually completed in one go, which can easily lead to stress concentration in the material, increasing the risk of flanging tilt and affecting product quality and performance. During production, the height and diameter of the flanged holes often exceed tolerances, rendering the flanged parts unusable and requiring manual repair. This not only wastes manpower and resources but also significantly increases production costs.

[0004] Therefore, there is a need for a part-making die that can position and guide the punch during the hole-making process and divide the hole-making process into multiple steps to gradually complete the hole forming. Utility Model Content

[0005] To overcome the problems existing in related technologies, the purpose of this utility model is to provide a part turning die that can position and guide the punch during the turning process, and divide the turning process into multiple steps to gradually complete the hole forming.

[0006] A part-flipping mold includes a flipping assembly and a positioning assembly arranged opposite each other. The flipping assembly includes a punch, and a straight structure is connected to one end of the punch near the positioning assembly. The straight structure is adapted to the positioning assembly and extends in a direction close to the positioning assembly. A part is placed between the positioning assembly and the punch, and the part has a flanged hole. The straight structure is used to pass through the flanged hole and insert into the positioning assembly. The straight structure moves along the height direction to fold the flanged hole.

[0007] In a preferred embodiment of this invention, the punch includes a first support structure and a second support structure. The first end of the second support structure is connected to the first support structure, and the second end of the second support structure is provided with an inclined surface, which is connected to the straight body structure.

[0008] In a preferred embodiment of this invention, the radial dimension of the second support structure is greater than the radial dimension of the straight structure; the radial dimension of the inclined surface gradually decreases towards the straight structure.

[0009] In a preferred embodiment of this invention, the positioning component includes a top pin, and an insertion hole is provided at one end of the top pin near the punch. The straight structure is inserted into the insertion hole until the inclined surface abuts against the insertion hole, and the inclined surface is used to push the top pin to move.

[0010] In a preferred embodiment of this invention, the positioning component further includes an elastic element, the movable end of which is connected to the top pin. The top pin is used to press the movable end of the elastic element so that the movable end of the elastic element moves toward the fixed end of the elastic element.

[0011] In a preferred embodiment of this invention, a fixing screw is connected to the fixed end of the elastic element, and the fixing screw is used to fix the fixed end of the elastic element.

[0012] In a preferred embodiment of this invention, the part-flipping mold further includes a first fixing component and a second fixing component, with the part placed between the first fixing component and the second fixing component; the flipping component is fixed inside the first fixing component, and the positioning component is fixed inside the second fixing component.

[0013] In a preferred embodiment of this utility model, the first fixing component includes an upper stripping plate, abutting the part on a first side, and an upper stop plate connected to the second side of the upper stripping plate. The flipping hole component passes through the upper stripping plate and the upper stop plate respectively.

[0014] In a preferred embodiment of this utility model, an upper clamping plate is connected to the side of the upper stop plate away from the upper stripper plate, and the end of the flipping assembly away from the positioning assembly is fixed inside the upper clamping plate; an upper mold base is connected to the side of the upper clamping plate away from the upper stop plate, and the upper mold base abuts against the flipping assembly.

[0015] In a preferred embodiment of this invention, the second fixing component includes a lower template, a first side of which abuts against the part, and a lower pad connected to the second side of the lower template. The positioning component is inserted into the lower template and the lower pad respectively.

[0016] In a preferred embodiment of this invention, a lower mold base is connected to the side of the lower pad away from the lower template.

[0017] In a preferred embodiment of this invention, the straight structure extends from the side of the upper stripper plate near the positioning component and passes through the flange hole, and the radial dimension of the straight structure is smaller than the radial dimension of the flange hole.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model provides a part flanging mold, including a flanging assembly and a positioning assembly arranged opposite each other. The flanging assembly includes a punch, and a straight structure is connected to one end of the punch near the positioning assembly. The straight structure is adapted to the positioning assembly and extends towards the positioning assembly. A part is placed between the positioning assembly and the punch, and the part has a flanged hole. The straight structure passes through the flanged hole and is inserted into the positioning assembly. The straight structure moves along the height direction to fold the flanged hole. When flanging the part, a pre-punching process is used to drill the flanged hole on the part. The punch is pre-positioned so that the punch is aligned with the flanged hole. The punch moves downward, and the straight structure first inserts into the flanged hole. The punch continues to move downward until the straight structure passes through the flanged hole and is inserted into the positioning assembly. After the straight structure is inserted into the positioning assembly, it can only move up and down along the extension direction of the positioning assembly to avoid tilting due to uneven force during the flanging process. During the downward movement of the flanging assembly, i.e., the movement towards the positioning assembly, the flanging assembly folds the flanged hole inward, turning the part outward to form a flange. The flanging assembly rises, the positioning assembly ejects the flange, and the flanging hole is folded outward to complete the flanging process. Using this new part flanging mold, the flanging process can be broken down into multiple steps, gradually completing the hole formation. This avoids the material stress concentration problem caused by traditional one-time flanging processes, reduces the risk of flanging tilt, and prevents tilted flanging holes from cutting assembly pipes. Aligning the straight structure with the flanging hole allows for punch positioning during the flanging process. After the straight structure passes through the flanging hole, it is inserted into the positioning assembly. Under the guidance of the positioning assembly, the punch maintains vertical movement during the flanging process, improving the strength of the flanging hole after the flanging process, thereby enhancing the overall structural strength and durability of the part. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the part-flipping mold when the flipping assembly of this utility model is inserted into the positioning assembly;

[0021] Figure 2 This is a schematic diagram of the part-flipping mold when the flipping assembly and positioning assembly of this utility model are separated;

[0022] Figure 3 This is a schematic diagram of the punch of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the punch and ejector pin of this utility model.

[0024] Reference numerals: 1. Flanging assembly; 2. Positioning assembly; 3. Punch; 4. Straight body structure; 5. Part; 6. Flanged hole; 7. First support structure; 8. Second support structure; 9. Inclined surface; 10. Ejector pin; 11. Insertion hole; 12. Elastic element; 13. Stop screw; 14. Upper stripper plate; 15. Upper stop plate; 16. Upper clamping plate; 17. Upper die base; 18. Lower die plate; 19. Lower backing plate; 20. Lower die base. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0026] Example 1

[0027] like Figures 1-4 As shown, this embodiment provides a part flanging mold, including a flanging assembly 1 and a positioning assembly 2 arranged facing each other. The flanging assembly 1 includes a punch 3, and a straight structure 4 is connected to one end of the punch 3 near the positioning assembly 2. The straight structure 4 is adapted to the positioning assembly 2 and extends in a direction close to the positioning assembly 2. A part 5 is placed between the positioning assembly 2 and the punch 3. The part 5 has a flanging hole 6. The straight structure 4 is used to pass through the flanging hole 6 and insert into the positioning assembly 2. The straight structure 4 moves along the height direction to fold the flanging hole 6.

[0028] The piercing assembly 1 and the positioning assembly 2 are arranged along the height direction, with the piercing assembly 1 located above the positioning assembly 2, and the piercing assembly 1 and the positioning assembly 2 facing each other. The punch 3 is a metal part 5 mounted on the stamping die. The punch 3 is used for continuous punching, stamping or cutting, so that the processed material is separated or plastically deformed, thereby obtaining the desired finished or semi-finished product.

[0029] Before flanging, the punch 3 is pre-positioned to align with the center of the flanging hole 6. Preferably, a high-precision sensor is installed on one side of the flanging mold of part 5, aligned with the punch 3, and electrically connected to the control system. The sensor can be a photoelectric sensor or other types of sensors; no limitation is made here. This embodiment uses a photoelectric sensor as an example. The photoelectric sensor monitors the position of the punch 3 in real time and adjusts its position to ensure the stability of the punch 3 during the flanging process. When the straight structure 4 is inserted into the positioning assembly 2, the pre-positioning of the punch 3 is completed.

[0030] The radial dimension of the straight section is smaller than that of the punch 3. Based on the existing punch 3 structure, the straight section is designed to guide the punch 3 to maintain vertical movement during the hole turning process and avoid tilting caused by uneven force.

[0031] As the flanging assembly 1 moves downward, the flanging hole 6 is folded inward, turning the part 5 out of the flange portion. The flanging assembly 1 then rises, the positioning assembly 2 pushes out the flange, and the flanging hole 6 is folded outward, completing the flanging process.

[0032] Flanging is a hole-making technique in sheet metal processing. Specifically, it involves pre-punching holes in the sheet metal and then plastically deforming the hole edges outwards or inwards to form a flange. The flanged hole edges can distribute stress, reducing the risk of cracking around the hole. The flanged hole 6 can provide guidance or support, facilitating the insertion or fixing of components such as copper tubes. The flanged hole 6 eliminates sharp burrs, preventing scratches or wear on parts 5, such as copper tubes.

[0033] This embodiment provides a part flanging mold, including a flanging assembly 1 and a positioning assembly 2 arranged facing each other. The flanging assembly 1 includes a punch 3, and a straight structure 4 is connected to one end of the punch 3 near the positioning assembly 2. The straight structure 4 is adapted to the positioning assembly 2 and extends towards the positioning assembly 2. A part 5 is placed between the positioning assembly 2 and the punch 3, and a flanging hole 6 is formed on the part 5. The straight structure 4 passes through the flanging hole 6 and is inserted into the positioning assembly 2. The straight structure 4 moves along the height direction to fold the flanging hole 6. When flanging the part 5, a pre-punching process is used to drill the flanging hole 6 on the part 5. The punch 3 is pre-positioned so that the punch 3 is aligned with the flanging hole 6. The punch 3 moves downward, and the straight structure 4 first inserts into the flanging hole 6. The punch 3 continues to move downward until the straight structure 4 passes through the flanging hole 6 and is inserted into the positioning assembly 2. After the straight structure 4 is inserted into the positioning component 2, the straight structure 4 can only move up and down along the extension direction of the positioning component 2, avoiding tilting caused by uneven force during the hole-flipping process. As the hole-flipping component 1 moves downwards, i.e., towards the positioning component 2, it folds the flanged hole 6 inwards, turning the part 5 outwards through the flange. The hole-flipping component 1 rises, the positioning component 2 pushes out the flange, and the flanged hole 6 is folded outwards, completing the hole-flipping process. Using the hole-flipping mold of this invention, the hole-flipping process can be broken down into multiple steps, gradually completing the hole formation, avoiding the material stress concentration problem caused by the traditional one-time hole-flipping process, reducing the risk of hole tilting, and preventing the tilted flanged hole 6 from cutting the assembly pipe. Aligning the straight structure 4 with the flanged hole 6 allows for positioning of the punch 3 during the hole-flipping process. After the straight structure 4 passes through the flanged hole 6, it is inserted into the positioning component 2. Under the guidance of the positioning component 2, the punch 3 maintains vertical movement during the hole-flipping process, improving the strength of the flanged hole 6 after the hole-flipping process, thereby enhancing the overall structural strength and durability of the part 5.

[0034] Example 2

[0035] like Figures 1-4 As shown, this embodiment provides a part flanging mold, including a flanging assembly 1 and a positioning assembly 2 arranged facing each other. The flanging assembly 1 includes a punch 3, and a straight structure 4 is connected to one end of the punch 3 near the positioning assembly 2. The straight structure 4 is adapted to the positioning assembly 2 and extends in a direction close to the positioning assembly 2. A part 5 is placed between the positioning assembly 2 and the punch 3. The part 5 has a flanging hole 6. The straight structure 4 is used to pass through the flanging hole 6 and insert into the positioning assembly 2. The straight structure 4 moves along the height direction to fold the flanging hole 6.

[0036] The punch 3 includes a first support structure 7 and a second support structure 8. The first end of the second support structure 8 is connected to the first support structure 7, and the second end of the second support structure 8 is provided with an inclined surface 9, which is connected to the straight body structure 4.

[0037] The radial dimension of the second support structure 8 is greater than the radial dimension of the straight structure 4; the radial dimension of the inclined surface 9 gradually decreases towards the straight structure 4.

[0038] The second support structure 8 is located on the side closer to the positioning component 2, that is, the second support structure 8 is located between the first support structure 7 and the positioning component 2. Starting from the end of the second support structure 8 closer to the straight body structure 4, it extends toward the straight body structure 4, thereby forming a slope 9.

[0039] The inclined surface 9 and the straight body structure 4 form an R-angle. The inclined surface 9 and the R-angle form a support structure. The function of the support structure is to press a part of the positioning component 2 into the lower template 18 in advance to avoid deformation of the flange hole 6.

[0040] The punch 3 in this embodiment includes a first support structure 7 and a second support structure 8. The first end of the second support structure 8 is connected to the first support structure 7, and the second end of the second support structure 8 is provided with a slope 9, which is connected to the straight body structure 4. The slope 9 and the straight body structure 4 form an R-angle. The slope 9 and the R-angle together form the support structure. The function of the support structure is to pre-press a portion of the positioning component 2 into the lower template 18 to prevent deformation of the flanged hole 6. The support structure also enhances the overall rigidity of the part 5 flanged die, reducing hole position deviation caused by deformation of the part 5 flanged die.

[0041] Example 3

[0042] like Figures 1-4 As shown, this embodiment provides a part flanging mold, including a flanging assembly 1 and a positioning assembly 2 arranged facing each other. The flanging assembly 1 includes a punch 3, and a straight structure 4 is connected to one end of the punch 3 near the positioning assembly 2. The straight structure 4 is adapted to the positioning assembly 2 and extends in a direction close to the positioning assembly 2. A part 5 is placed between the positioning assembly 2 and the punch 3. The part 5 has a flanging hole 6. The straight structure 4 is used to pass through the flanging hole 6 and insert into the positioning assembly 2. The straight structure 4 moves along the height direction to fold the flanging hole 6.

[0043] The punch 3 includes a first support structure 7 and a second support structure 8. The first end of the second support structure 8 is connected to the first support structure 7, and the second end of the second support structure 8 is provided with an inclined surface 9, which is connected to the straight body structure 4.

[0044] The positioning component 2 includes a top pin 10. The top pin 10 has an insertion hole 11 at one end near the punch 3. The straight structure 4 is inserted into the insertion hole 11 until the inclined surface 9 abuts against the insertion hole 11. The inclined surface 9 is used to push the top pin 10 to move.

[0045] The top pin 10 is adapted to the straight structure 4, and the radial dimension of the insertion hole 11 is the same as the radial dimension of the top pin 10. The punch 3 drives the straight structure 4 to move from top to bottom. The straight structure 4 is inserted into the top pin 10 through the insertion hole 11. The punch 3 continues to move downward until the inclined surface 9 abuts against the insertion hole 11. At this time, the punch 3 stops moving downward.

[0046] The inclined surface 9 and the straight body structure 4 form an R angle. After the inclined surface 9 and the top pin 10 are engaged, the inclined surface 9 and the R angle will fix the top pin 10 in advance to avoid deformation of the flange hole 6.

[0047] The positioning component 2 also includes an elastic element 12, the movable end of which is connected to the top pin 10. The top pin 10 is used to press the movable end of the elastic element 12 so that the movable end of the elastic element 12 moves toward the fixed end of the elastic element 12.

[0048] The fixed end of the elastic element 12 is connected to a fixing screw 13, which is used to fix the fixed end of the elastic element 12.

[0049] In this embodiment, the elastic element 12 is used as a spring. The fixed end of the elastic element 12 is connected to the fixing screw 13, which is used to fix the elastic element 12. The movable end of the elastic element 12 is connected to the ejector pin 10. The ejector pin 10 presses the elastic element 12 downward, compressing it and thus limiting the downward movement of the ejector pin 10 during the process of the punch 3 turning the flanged hole 6 inward. After the flanged hole 6 is turned out of the flange, the punch 3 rises, and the elastic element 12, which is in a compressed state, begins to recover its deformation. The elastic element 12 applies an upward elastic force to the ejector pin 10, pushing the ejector pin 10 out of the flange and completing the turning hole process.

[0050] The positioning component 2 in this embodiment includes a top pin 10. The top pin 10 has an insertion hole 11 at one end near the punch 3. The straight structure 4 is inserted into the insertion hole 11 until the inclined surface 9 abuts against the insertion hole 11. The inclined surface 9 is used to push the top pin 10 to move. During the process of the punch 3 folding the flanged hole 6 inward, the elastic element restricts the downward movement of the top pin 10. During the upward movement of the punch 3, the elastic element 12 applies an upward elastic force to the top pin 10, pushing the top pin 10 out of the flange and completing the folding process.

[0051] Example 4

[0052] like Figures 1-4 As shown, this embodiment provides a part flanging mold, including a flanging assembly 1 and a positioning assembly 2 arranged facing each other. The flanging assembly 1 includes a punch 3, and a straight structure 4 is connected to one end of the punch 3 near the positioning assembly 2. The straight structure 4 is adapted to the positioning assembly 2 and extends in a direction close to the positioning assembly 2. A part 5 is placed between the positioning assembly 2 and the punch 3. The part 5 has a flanging hole 6. The straight structure 4 is used to pass through the flanging hole 6 and insert into the positioning assembly 2. The straight structure 4 moves along the height direction to fold the flanging hole 6.

[0053] The part-flipping mold also includes a first fixing component and a second fixing component, with the part 5 placed between the first fixing component and the second fixing component; the flipping component 1 is fixed inside the first fixing component, and the positioning component 2 is fixed inside the second fixing component.

[0054] Part 5 can be a copper pipe type, such as a condenser pipe and an evaporator pipe, which are usually made of copper. Part 5 can also be a manifold type, such as a condenser manifold and an evaporator manifold. Part 5 can also be a side plate type, such as a side plate located at both ends of the condenser and a side plate located at both ends of the evaporator. In this embodiment, the side plate in the air conditioner condenser and evaporator is taken as an example.

[0055] Part 5 is placed between the first fixing component and the second fixing component. When the mold is closed, the first side of part 5 abuts against the first fixing component, and the second side of part 5 abuts against the second fixing component. The first and second fixing components fix part 5 in place at the processing station, preventing displacement of part 5 during processing. When the mold is open, the first side of part 5 separates from the first fixing component, and the second side of part 5 separates from the second fixing component, allowing part 5 to be directly removed after processing and replaced with the next part 5 for processing.

[0056] The first fixing component includes an upper stripping plate 14, the first side of which abuts against the part 5, and the second side of which is connected to an upper stop plate 15. The flipping hole component 1 passes through the upper stripping plate 14 and the upper stop plate 15 respectively.

[0057] The upper stop plate 15 is connected to an upper clamping plate 16 on the side away from the upper stripper plate 14, and the end of the flipping assembly 1 away from the positioning assembly 2 is fixed inside the upper clamping plate 16; the upper clamping plate 16 is connected to an upper mold base 17 on the side away from the upper stop plate 15, and the upper mold base 17 abuts against the flipping assembly 1.

[0058] The straight structure 4 extends from the side of the upper stripper plate 14 near the positioning component 2 and passes through the flange hole 6. The radial dimension of the straight structure 4 is smaller than the radial dimension of the flange hole 6.

[0059] Before the mold folds the flanged hole 6 on part 5, the straight structure 4 is controlled to extend from the side of the upper stripper plate 14 near the positioning component 2. The extension dimension of the straight structure 4 can be controlled between 5 mm and 7 mm. At the same time, the extended straight structure 4 is aligned with the center of the flanged hole 6. The above steps are achieved through a high-precision sensor and control system, which can monitor and adjust the position of the straight structure 4 in real time to ensure the stability of the flanged hole component 1 during the flanged hole process. The radial dimension of the straight structure 4 is smaller than the radial dimension of the flanged hole 6 to ensure that the straight structure 4 can pass directly through the flanged hole 6. After the control system controls the straight structure 4 to extend, it then controls the straight structure 4 to pass through the flanged hole 6 to complete the initial positioning of the straight structure 4.

[0060] The end of the flipping assembly 1 furthest from the positioning assembly 2 is fixed inside the upper clamping plate 16 and abuts against the upper mold base 17. When the mold is in the closed state, both sides of the upper clamping plate 16 abut against the upper mold base 17 and the upper stop plate 15, respectively, and both sides of the upper stripper plate 14 abut against the upper stop plate 15 and the part 5, respectively. When the mold is in the disengaged state, the first side of the upper clamping plate 16 separates from the upper stop plate 15, the second side of the upper clamping plate 16 abuts against the upper mold base 17, the first side of the upper stripper plate 14 separates from the part 5, and the second side of the upper stripper plate 14 abuts against the upper stop plate 15.

[0061] This embodiment of a part-flipping mold further includes a first fixing component and a second fixing component, with the part 5 placed between the first fixing component and the second fixing component; the flipping component 1 is fixed inside the first fixing component, and the positioning component 2 is fixed inside the second fixing component. The first fixing component includes an upper stripper plate 14, abutting the part 5 on a first side, and an upper stop plate 15 connected to a second side of the upper stripper plate 14. The flipping component 1 passes through the upper stripper plate 14 and the upper stop plate 15 respectively. An upper clamping plate 16 is connected to the side of the upper stop plate 15 away from the upper stripper plate 14, and the end of the flipping component 1 away from the positioning component 2 is fixed inside the upper clamping plate 16; an upper mold base 17 is connected to the side of the upper clamping plate 16 away from the upper stop plate 15, and the upper mold base 17 abuts against the flipping component 1. The straight structure 4 extends from the side of the upper stripper plate 14 near the positioning component 2 and passes through the flange hole 6. The radial dimension of the straight structure 4 is smaller than the radial dimension of the flange hole 6. When the mold is closed, both sides of the part 5 abut against the first fixing component and the second fixing component, respectively. Both sides of the upper stripper plate 14 abut against the part 5 and the upper stop plate 15, respectively. Both sides of the upper clamping plate 16 abut against the upper stop plate 15 and the upper mold base 17, respectively. One end of the flange hole component 1 is fixed inside the upper clamping plate 16, and the other end of the flange hole component 1 passes through the part 5 and is inserted into the positioning component 2. When the mold is open, both sides of the part 5 separate from the first fixing component and the second fixing component, the first side of the upper stripper plate 14 separates from the part 5, the second side of the upper stripper plate 14 abuts against the upper stop plate 15, the first side of the upper clamping plate 16 separates from the upper stop plate 15, and the second side of the upper clamping plate 16 abuts against the upper mold base 17. One end of the flanging assembly 1 is fixed inside the upper clamping plate 16, while the other end of the flanging assembly 1 does not pass through the part 5 and is separated from the positioning assembly 2. During the movement of the mold along the height direction, the flanging assembly 1 folds the flanging hole 6 on the part 5. The control system controls the flanging assembly 1 to pass through the flanging hole 6 for initial positioning, and then controls the flanging assembly 1 to insert into the positioning assembly 2 for secondary positioning. The positioning assembly 2 can guide the flanging assembly 1 to maintain vertical movement during the flanging process, avoiding tilting caused by uneven force, which greatly improves the accuracy and quality of the flanging of the part 5.

[0062] Example 5

[0063] like Figures 1-4As shown, this embodiment provides a part flanging mold, including a flanging assembly 1 and a positioning assembly 2 arranged facing each other. The flanging assembly 1 includes a punch 3, and a straight structure 4 is connected to one end of the punch 3 near the positioning assembly 2. The straight structure 4 is adapted to the positioning assembly 2 and extends in a direction close to the positioning assembly 2. A part 5 is placed between the positioning assembly 2 and the punch 3. The part 5 has a flanging hole 6. The straight structure 4 is used to pass through the flanging hole 6 and insert into the positioning assembly 2. The straight structure 4 moves along the height direction to fold the flanging hole 6.

[0064] The part-flipping mold also includes a first fixing component and a second fixing component, with the part 5 placed between the first fixing component and the second fixing component; the flipping component 1 is fixed inside the first fixing component, and the positioning component 2 is fixed inside the second fixing component.

[0065] The second fixing component includes a lower template 18, the first side of which abuts against the part 5, and a lower pad 19 connected to the second side of the lower template 18. The positioning component 2 is inserted into the lower template 18 and the lower pad 19 respectively.

[0066] The lower pad 19 is connected to the lower mold base 20 on the side away from the lower template 18, and the fixing screw 13 is disposed in the lower mold base 20.

[0067] When the mold is closed, the first side of the lower pad 19 abuts against the lower mold base 20, the second side of the lower pad 19 abuts against the lower template 18, and the side of the lower template 18 away from the lower pad 19 abuts against the part 5. The first end of the positioning component 2 is fixed inside the lower mold base 20, and the second end of the positioning component 2 is pressed down into the lower template 18. When the mold is disengaged, the first side of the lower pad 19 abuts against the lower mold base 20, the second side of the lower pad 19 abuts against the lower template 18, and the side of the lower template 18 away from the lower pad 19 separates from the part 5. The first end of the positioning component 2 is fixed inside the lower mold base 20, and the second end of the positioning component 2 extends out from the end face of the lower template 18 near the part 5.

[0068] As the mold moves downwards along its height, the flanging assembly 1 first passes through the flanging hole 6 of part 5 for initial positioning, then inserts into the positioning assembly 2 for secondary positioning. Next, the flanging assembly 1 pushes the positioning assembly 2 to continue moving downwards until the positioning assembly 2 is pressed into the lower template 18. During its downward movement, the flanging assembly 1 flips the flanging hole 6 to reveal the flange structure. Then, the flanging assembly 1 moves upwards, and the positioning assembly 2 pushes the flange structure upwards until the positioning assembly 2 extends from the end face of the lower template 18 closest to part 5, thus completing the flanging process of part 5.

[0069] The part-flipping mold of this embodiment also includes a first fixing component and a second fixing component, with the part 5 placed between the first fixing component and the second fixing component; the flipping component 1 is fixed inside the first fixing component, and the positioning component 2 is fixed inside the second fixing component. The second fixing component includes a lower template 18, abutting the part 5 on a first side, and a lower pad 19 connected to a second side of the lower template 18. The positioning component 2 is inserted into the lower template 18 and the lower pad 19 respectively. A lower mold base 20 is connected to the side of the lower pad 19 away from the lower template 18, and the fixing screw 13 is disposed inside the lower mold base 20. When the mold is in the closed state, the two sides of the lower pad 19 abut against the lower mold base 20 and the lower template 18 respectively, and the two sides of the lower template 18 abut against the lower pad 19 and the part 5 respectively. The flipping component 1 presses the positioning component 2 down into the lower template 18. During the downward movement of the flipping component 1, the flipping component 1 flips the flange hole 6 of the part 5 out of the flange structure. When the mold is in the disengaged state, the two sides of the lower pad 19 abut against the lower mold base 20 and the lower pad 19 respectively. The side of the lower template 18 near the hole-flipping assembly 1 separates from the part 5. The hole-flipping assembly 1 separates from the positioning assembly 2. During the upward movement of the hole-flipping assembly 1, the positioning assembly 2 moves upward at the same time. The positioning assembly 2 pushes the flange structure out of the lower template 18 to complete the hole-flipping process of the part 5.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this application. Any specific values ​​in all examples shown and discussed herein should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0071] It should be understood that spatial relative terms are intended to encompass different orientations of a device in use or operation, in addition to the orientation described in the figures. For example, if a device in the figures is inverted, a device described as "above" or "on top of" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0072] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0073] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A part piercing die characterized in that, The device includes a flipping assembly and a positioning assembly arranged opposite to each other. The flipping assembly includes a punch, and a straight structure is connected to one end of the punch near the positioning assembly. The straight structure is adapted to the positioning assembly and extends in a direction close to the positioning assembly. A part is placed between the positioning assembly and the punch, and the part has a flanged hole. The straight structure is used to pass through the flanged hole and be inserted into the positioning assembly. The straight structure moves along the height direction to fold the flanged hole.

2. The part piercing die of claim 1, wherein, The punch includes a first support structure and a second support structure. The first end of the second support structure is connected to the first support structure, and the second end of the second support structure is provided with an inclined surface, which is connected to the straight body structure.

3. The part piercing die of claim 2, wherein, The radial dimension of the second support structure is larger than the radial dimension of the straight structure; the radial dimension of the inclined surface gradually decreases towards the straight structure.

4. The part piercing die of claim 2 wherein, The positioning component includes a top pin, and the top pin has an insertion hole at one end near the punch. The straight structure is inserted into the insertion hole until the inclined surface abuts against the insertion hole. The inclined surface is used to push the top pin to move.

5. The part piercing die of claim 4 wherein, The positioning component also includes an elastic element, the movable end of which is connected to the top pin. The top pin is used to press the movable end of the elastic element so that the movable end of the elastic element moves toward the fixed end of the elastic element.

6. The part flanging die according to claim 5, characterized in that, The fixed end of the elastic element is connected to a fixing screw, which is used to fix the fixed end of the elastic element.

7. The part piercing die of any of claims 1-6, wherein, The part-flipping mold further includes a first fixing component and a second fixing component, with the part placed between the first fixing component and the second fixing component; the flipping component is fixed inside the first fixing component, and the positioning component is fixed inside the second fixing component.

8. The part piercing die of claim 7, wherein, The first fixing component includes an upper stripper plate, abutting the part on a first side, and an upper stop plate connected to the second side of the upper stripper plate. The flip-hole component passes through the upper stripper plate and the upper stop plate respectively.

9. The part piercing die of claim 8, wherein, An upper clamping plate is connected to the side of the upper stop plate away from the upper stripper plate, and the end of the flipping assembly away from the positioning assembly is fixed inside the upper clamping plate; an upper mold base is connected to the side of the upper clamping plate away from the upper stop plate, and the upper mold base abuts against the flipping assembly.

10. The part piercing die of claim 7 wherein, The second fixing component includes a lower template, a first side of which abuts against the part, and a lower pad connected to a second side of the lower template. The positioning component is inserted into the lower template and the lower pad, respectively.

11. The part piercing die of claim 10 wherein, The lower pad is connected to the lower mold base on the side away from the lower template.

12. The part piercing die of claim 8, wherein, The straight structure extends from the side of the upper stripper plate near the positioning component and passes through the flange hole, and the radial dimension of the straight structure is smaller than the radial dimension of the flange hole.

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