A side trim die for high strength sheet

Abstract

The utility model discloses a kind of side shaping mould for high-strength plate, including upper die assembly and lower die assembly;Upper die assembly includes upper die seat, upper die wedge and upper die material pressing plate, upper die wedge is oppositely arranged on upper die seat, and upper die material pressing plate is arranged between two upper die wedges;Lower die assembly includes lower die seat, lower die slider and lower die material fixing seat, lower die slider is matched with upper die wedge, and lower die material fixing seat is arranged between two lower die sliders and matched with upper die material pressing plate;The side of lower die slider towards lower die material fixing seat is provided with clamping seat, and the side of clamping seat away from lower die slider is provided with shaping block for shaping the side of workpiece.The utility model realizes the process sequence of first pressing and then shaping by optimizing material pressing positioning and power transmission structure, solves the problem of moving and deforming of workpiece during shaping, and simultaneously improves the dynamic adjustment, wear resistance and working stability of mould.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet stamping technology, specifically to a side shaping mold for high-strength plates. Background Technology

[0002] In aerospace, automotive, and home appliance manufacturing, high-strength steel plates and aluminum alloy plates are widely used due to their lightweight and high strength characteristics. After stamping, these plates often require side shaping to meet assembly accuracy and appearance quality requirements. Traditional side shaping processes often employ a wedge-type die structure, where the upper die presses down to drive the slider to move horizontally, achieving lateral extrusion shaping of the workpiece. However, existing technologies have the following problems: First, during the shaping process, the workpiece is prone to displacement or deformation due to lateral forces, leading to dimensional deviations or even scrapping; second, the sliding surface between the wedge and the slider is prone to wear, resulting in high maintenance and replacement costs; third, the shaping amount cannot be adjusted flexibly, requiring replacement of the entire lower die assembly, which is costly and lacks adaptability; fourth, the slider is prone to jumping or shifting under impact, affecting shaping accuracy and stability.

[0003] Therefore, there is an urgent need for a side forming mold that can accurately press materials, efficiently transmit power, is easy to adjust, and has a long service life, in order to improve the forming quality and production efficiency of high-strength plates. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model aims to provide a side-shaping mold for high-strength plates. By optimizing the material positioning and power transmission structure, it achieves a process sequence of pressing followed by shaping, solving the problem of workpiece movement and deformation during the shaping process, while improving the dynamic adjustability, wear resistance, and working stability of the mold.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A side-shaping mold for high-strength steel plates includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base, upper mold inclined wedges, and an upper mold pressure plate. The upper mold inclined wedges are disposed opposite to each other on the upper mold base, and the upper mold pressure plate is disposed between the two upper mold inclined wedges. The lower mold assembly includes a lower mold base, a lower mold slider, and a lower mold stationary base. The lower mold slider corresponds to and cooperates with the upper mold inclined wedges, and the lower mold stationary base is disposed between the two lower mold sliders and corresponds to and cooperates with the upper mold pressure plate. A clamping seat is provided on the side of the lower mold slider facing the lower mold stationary base, and a shaping block for shaping the side of the workpiece is provided on the side of the clamping seat away from the lower mold slider.

[0006] Furthermore, the upper die wedge block has a first inclined surface on the side facing the lower die slider, and the lower die slider has a second inclined surface on the side facing the upper die wedge block that cooperates with the first inclined surface; a wear-resistant block is provided on the first inclined surface of the upper die wedge block, and the wear-resistant block is fixedly connected to the upper die wedge block by a connecting pin.

[0007] Furthermore, the lower part of the upper mold base is provided with an upper mold pad, the upper part of the upper mold pad is connected to a connecting column, the end of the connecting column away from the upper mold pad is connected to the upper mold base and extends into it, and the upper mold pressure plate is disposed at the lower part of the upper mold pad.

[0008] Furthermore, a locking block is provided on the outer side of the upper mold inclined wedge block. The locking block has an L-shaped structure and includes an integrally formed connecting part and a limiting part. The locking block is fixedly connected to the mold inclined wedge block through the connecting part. The outer side of the lower mold slider is provided with a locking groove corresponding to the locking block. The locking groove is provided with a stop part that cooperates with the limiting part.

[0009] Furthermore, a pad is provided between the lower mold slider and the clamping seat, and the clamping seat is fixedly connected to the lower mold slider by a connecting pin; the pad is detachable.

[0010] Furthermore, the pad has several clearance grooves along its length for engaging the connecting pin, and the pad also has quick-release holes for inserting tools for assembly and disassembly.

[0011] Furthermore, the shaping block has an outwardly protruding semi-circular structure on the side facing the lower die material holder, and the lower die material holder has a shaping surface that cooperates with the semi-circular structure.

[0012] Furthermore, the lower mold base is provided with an installation groove, and a positioning block and a pressure block are provided in the installation groove; the lower mold slider is provided in the installation groove, and a limiting groove adapted to the positioning block is provided at its bottom, and extensions are provided on both sides, with the extensions positioned below the pressure block.

[0013] Furthermore, a reset mechanism is provided in the mounting groove. The reset mechanism includes a pneumatic telescopic rod and a reset block. The reset block is located in the mounting groove and connected to the lower mold slider. The pneumatic telescopic rod is driven to extend its telescopic end and abut against the reset block.

[0014] Furthermore, the upper mold base is provided with guide posts, and the lower mold base is provided with guide sleeves that cooperate with the guide posts.

[0015] Compared with existing technologies, the technical solution of this patent has the following advantages: 1. By combining the pressing and positioning structure of the upper die pressure plate and the lower die fixed material seat with the power transmission structure of the upper die inclined wedge block and the lower die slider inclined surface, the workpiece is firmly pressed before shaping, avoiding movement and deformation under the action of lateral shaping force, which significantly improves the shaping accuracy and product consistency.

[0016] 2. The locking block and locking groove structure added between the upper mold wedge and the lower mold slider constitute a safety locking mechanism. This mechanism can automatically lock during mold closing, effectively preventing the lower mold slider from retracting or disengaging from the wedge due to abnormal impact force, greatly improving the stability and safety of the working process.

[0017] 3. Replaceable wear-resistant blocks are installed on the inclined surface of the wedge. Once worn, only the wear-resistant blocks need to be replaced, significantly reducing maintenance costs and extending mold life. The removable pad design allows for quick replacement of pads of different thicknesses to adjust the forming amount. Dynamic adjustment of the pads according to actual production needs enables flexible mold production and significantly improves production efficiency. The pads are equipped with clearance grooves and quick-release holes, simplifying the structure and facilitating rapid assembly and disassembly.

[0018] 4. The lower mold slider is limited and pre-pressed by the limiting groove and pressure block structure, combined with the pneumatic reset mechanism, to ensure the accuracy of the slider's movement trajectory and the stability of the return stroke, avoiding jumping and deviation. Attached Figure Description

[0019] Figure 1 The figure shown is a side view of the structure of this utility model in the mold-open state; Figure 2 The figure shown is a three-dimensional structural schematic diagram of this utility model; Figure 3 The diagram shown is a structural schematic of the upper mold base; Figure 4 The diagram shown is a structural schematic of the lower mold base; Figure 5 The diagram shown is an exploded view of the lower mold base. Figure 6 The diagram shown is a three-dimensional structural schematic of the lower mold slider and the lower mold fixed base from an upward perspective. Figure 7 The diagram shown is a structural schematic of the disassembled assembly of the lower mold slider, pad block, and clamping seat. Figure 8 The figure shown is a side view of the structure of this utility model in the mold-closed state.

[0020] In the diagram: 1. Upper mold base; 2. Lower mold base; 3. Upper mold inclined wedge block; 31. First inclined surface; 32. Locking block; 321. Connecting part; 322. Limiting part; 4. Upper mold pressure plate; 5. Lower mold slider; 51. Second inclined surface; 52. Locking groove; 521. Stop; 53. Limiting groove; 54. Extension part; 6. Lower mold fixing seat; 61. Shaping surface; 7. Clamping seat; 8. Shaping block; 81. Semi-circular structure; 9. Upper mold pad; 10. Connecting column; 11. Wear-resistant block; 12. Pad block; 121. Alternating groove; 122. Quick release hole; 13. Positioning block; 14. Pressure block; 15. Reset mechanism; 151. Pneumatic telescopic rod; 152. Reset block; 16. Guide post; 17. Guide sleeve; 18. Workpiece; 21. Mounting groove. Detailed Implementation

[0021] 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.

[0022] See Figure 1-8 As shown, this embodiment provides a side forming mold for high-strength plates, including an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper mold base 1, an upper mold inclined wedge block 3, and an upper mold pressure plate 4. The upper mold inclined wedge blocks 3 are disposed opposite to each other on the upper mold base 1, and the upper mold pressure plate 4 is disposed between the two upper mold inclined wedge blocks 3. The lower mold assembly includes a lower mold base 2, a lower mold slider 5, and a lower mold fixing seat 6. The lower mold slider 5 is correspondingly engaged with the upper mold inclined wedge blocks 3, and the lower mold fixing seat 6 is disposed between the two lower mold sliders 5 and is correspondingly engaged with the upper mold pressure plate 4. A clamping seat 7 is provided on the side of the lower mold slider 5 facing the lower mold fixing seat 6, and a forming block 8 for shaping the side of the workpiece is provided on the side of the clamping seat 7 away from the lower mold slider 5. By combining the pressing and positioning structure of the upper die pressing plate 4 and the lower die fixing seat 6 with the power transmission structure of the upper die inclined wedge block 3 and the lower die slider 5, the process sequence of pressing first and then shaping is realized, ensuring that the workpiece will not move under the action of strong lateral shaping force, fundamentally avoiding the movement and deformation of the workpiece 18 during the shaping process, and ensuring extremely high shaping accuracy and product consistency.

[0023] The upper die wedge block 3 has a first inclined surface 31 on the side facing the lower die slider 5, and the lower die slider 5 has a second inclined surface 51 on the side facing the upper die wedge block 3, which cooperates with the first inclined surface 31. The inclined surface cooperation structure can smoothly convert the pressure of the upper die into the force that drives the slider to move horizontally. A wear-resistant block 11 is provided on the first inclined surface 31 of the upper die wedge block 3, and the wear-resistant block 11 is fixedly connected to the upper die wedge block 3 by a connecting pin. The upper die wedge block 3 has a replaceable wear-resistant block 11 on its inclined surface. After the wear-resistant block 11 wears out, only the wear-resistant block needs to be replaced, instead of replacing the expensive large wedge block body, which greatly reduces maintenance costs and extends the service life of the core components of the mold.

[0024] The upper mold base 1 has an upper mold pad 9 at its lower part, and a connecting post 10 is connected to the upper part of the upper mold pad 9. The end of the connecting post 10 away from the upper mold pad 9 is connected to the upper mold base 1 and extends into it. It should be noted that the upper mold base 1 has a connecting structure for fixing the connecting post 10. The upper mold pressure plate 4 is located at the lower part of the upper mold pad 9. The upper mold pad 9 and the connecting post 10 ensure that the pressure force of the upper mold pressure plate 4 is evenly distributed.

[0025] A locking block 32 is provided on the outer side of the upper mold wedge block 3. The locking block 32 has an L-shaped structure and includes an integrally formed connecting part 321 and a limiting part 322. The locking block 32 is fixedly connected to the mold wedge block 3 through the connecting part 321. The outer side of the lower mold slider 5 is provided with a locking groove 52 corresponding to the locking block 32. The locking groove 52 is provided with a stop part 521 that cooperates with the limiting part 322. The locking block 32 and the locking groove 52 added between the upper mold wedge block 3 and the lower mold slider 5 constitute a locking mechanism. This mechanism can automatically lock during the mold closing process, effectively preventing the lower mold slider 5 from retreating or disengaging from the wedge due to abnormal impact force, and greatly improving the stability of the working process.

[0026] A pad 12 is provided between the lower die slider 5 and the clamping seat 7. The clamping seat 7 is fixedly connected to the lower die slider 5 by a connecting pin; the pad 12 is detachable. The design of the detachable and replaceable pad 12 realizes the adjustment of the forming amount; it should be noted that the forming amount adjustment here refers to the adjustment of the bending angle. If a thicker pad 12 is replaced, the bending range of the side plate of the workpiece 18 will increase; if a thinner pad 12 is replaced, the bending range of the side plate of the workpiece 18 will be relatively reduced. The pad is dynamically adjusted according to the actual production needs, realizing flexible mold production and significantly improving production efficiency.

[0027] The pad block 12 has several clearance grooves 121 along its length for engaging the connecting pin, and also has quick-release holes 122 for inserting tools for assembly and disassembly. By designing several clearance grooves 121 on the pad block 12, it can be quickly engaged with the connecting pin, eliminating the need for an additional connecting pin at that location to connect with the lower mold slide 5 or the clamping seat 7, thus reducing structural complexity. The quick-release holes 122 allow operators to easily pry out the pad block 12 using simple tools, such as a pry bar, enabling rapid replacement of the pad block 12 and making debugging operations simpler and more efficient.

[0028] The forming block 8 has an outwardly protruding semi-circular structure 81 on the side facing the lower die material holder 6, and the lower die material holder 6 has a forming surface 61 that mates with the semi-circular structure 81. The semi-circular structure 81 on the forming block 8 and the forming surface 61 on the lower die material holder 6 mate to form a forming structure surface, on which the workpiece is extruded and formed. It should be noted that the position of the forming block 8 can be dynamically adjusted in height according to actual production needs.

[0029] The lower mold base 2 is provided with a mounting groove 21, on which a positioning block 13 and a pressure block 14 are provided. The lower mold slider 5 is disposed in the mounting groove 21, and its bottom is provided with a limiting groove 53 that matches the positioning block 13. Extensions 54 are provided on both sides of the slider, and the extensions 54 are positioned below the pressure block 14. The cooperation between the positioning block 13 and the limiting groove 21 constrains the movement trajectory of the slider, ensuring its horizontal movement, thereby ensuring that the forming block 8 can accurately impact the workpiece. The cooperation between the pressure block 14 and the extensions 54 forms a pre-compression space for the slider in the vertical direction, preventing the slider from jumping upwards due to impact force and ensuring the stability of the working process.

[0030] A reset mechanism 15 is provided in the mounting slot 21. The reset mechanism 15 includes a pneumatic telescopic rod 151 and a reset block 152. The reset block 152 is located in the mounting slot 21 and connected to the lower mold slider 5. The pneumatic telescopic rod 151 is driven to extend its telescopic end and abut against the reset block 152, so that the reset block 152 pushes the lower mold slider 5 to reset. The lower mold slider 5 returns to its initial position under the action of the reset mechanism 15.

[0031] The upper die holder 1 is provided with a guide post 16, and the lower die holder 2 is provided with a guide sleeve 17 that mates with the guide post 16. The mate between the guide post 16 and the guide sleeve 17 provides precise guidance for the upper and lower dies, ensuring that the upper and lower dies can be accurately aligned in each stamping, avoiding die damage and product scrap rate caused by misalignment, and improving the reliability and safety of the operation.

[0032] The working process of this utility model is as follows: During operation, the upper die base 1 moves downward under the drive of the press, and the guide post 16 is inserted into the guide sleeve 17 for guidance. First, the upper die pressure plate 4 contacts and presses the main surface of the workpiece 18 placed on the lower die fixed material base 6. The upper die continues to move downward, and the first inclined surface 31 of the upper die inclined wedge block 3 contacts the second inclined surface 51 of the lower die slider 5 through the wear-resistant block 11, converting the vertical pressure into a horizontal force, driving the lower die slider 5 to move horizontally along the positioning block 13 limiting direction. At the same time, the locking block 32 on the upper die inclined wedge block 3 moves downward, and its limiting part 322 gradually enters the locking groove 52 of the lower die slider 5. When the forming block 8 contacts the workpiece 18 and performs side plate bending and forming, the limiting part 322 of the locking block 32 has completely entered the locking groove 52 and abuts against the lower surface of the stop part 521, forming a reliable mechanical lock, preventing the slider from vibrating under the strong lateral forming reaction force, and ensuring that the forming force is stably applied.

[0033] During the return stroke, the upper mold moves upward, and at the same time, the pneumatic telescopic rod 151 pushes the reset block 152, causing the lower mold slider 5 to gradually retract. The limiting part 322 of the locking block 32 exits from the locking groove 52, releasing the locking state. The upper mold inclined wedge block 3 disengages from the lower mold slider 5, and the lower mold slider 5 returns to its initial position, completing one work cycle.

Claims

1. A side-shaping mold for high-strength steel plates, comprising an upper mold assembly and a lower mold assembly; characterized in that, The upper mold assembly includes an upper mold base (1), an upper mold inclined wedge (3), and an upper mold pressure plate (4). The upper mold inclined wedge (3) is disposed opposite to the upper mold base (1), and the upper mold pressure plate (4) is disposed between the two upper mold inclined wedges (3). The lower mold assembly includes a lower mold base (2), a lower mold slider (5), and a lower mold fixed base (6). The lower mold slider (5) is correspondingly engaged with the upper mold inclined wedge (3), and the lower mold fixed base (6) is disposed between the two lower mold sliders (5) and is correspondingly engaged with the upper mold pressure plate (4). A clamping seat (7) is provided on the side of the lower mold slider (5) facing the lower mold fixed base (6), and a shaping block (8) for shaping the side of the workpiece is provided on the side of the clamping seat (7) away from the lower mold slider (5).

2. The side forming mold for high-strength plates according to claim 1, characterized in that, The upper die wedge block (3) has a first inclined surface (31) on the side facing the lower die slider (5), and the lower die slider (5) has a second inclined surface (51) on the side facing the upper die wedge block (3) that cooperates with the first inclined surface (31); the first inclined surface (31) of the upper die wedge block (3) is provided with a wear-resistant block (11), and the wear-resistant block (11) is fixedly connected to the upper die wedge block (3) by a connecting pin.

3. The side forming mold for high-strength plates according to claim 1, characterized in that, The upper mold base (1) is provided with an upper mold pad (9) at the lower part. A connecting column (10) is connected to the upper part of the upper mold pad (9). The end of the connecting column (10) away from the upper mold pad (9) is connected to the upper mold base (1) and extends into it. The upper mold pressing plate (4) is located at the lower part of the upper mold pad (9).

4. The side shaping mold for high-strength plates according to claim 2, characterized in that, The outer side of the upper die inclined wedge block (3) is provided with a locking block (32). The locking block (32) has an L-shaped structure and includes an integrally formed connecting part (321) and a limiting part (322). The locking block (32) is fixedly connected to the die inclined wedge block (3) through the connecting part (321). The outer side of the lower die slider (5) is provided with a locking groove (52) corresponding to the locking block (32). The locking groove (52) is provided with a stop part (521) that cooperates with the limiting part (322).

5. The side forming mold for high-strength plates according to claim 1, characterized in that, A pad (12) is provided between the lower mold slider (5) and the clamp (7). The clamp (7) is fixedly connected to the lower mold slider (5) by a connecting pin. The pad (12) is detachable.

6. The side forming mold for high-strength plates according to claim 5, characterized in that, The pad (12) has a plurality of clearance grooves (121) along its length for locking the connecting pin, and the pad (12) is also provided with quick-release holes (122) for inserting tools for disassembly and assembly.

7. The side forming mold for high-strength plates according to claim 1, characterized in that, The shaping block (8) has an outwardly protruding semi-circular structure (81) on the side facing the lower die material holder (6), and the lower die material holder (6) has a shaping surface (61) that cooperates with the semi-circular structure (81).

8. The side forming mold for high-strength plates according to claim 1, characterized in that, The lower mold base (2) is provided with an installation groove (21), and a positioning block (13) and a pressure block (14) are provided in the installation groove (21); the lower mold slider (5) is provided in the installation groove (21), and a limiting groove (53) adapted to the positioning block (13) is provided at its bottom, and extensions (54) are provided on both sides of it, and the extensions (54) are placed below the pressure block (14).

9. The side forming mold for high-strength plates according to claim 8, characterized in that, The mounting groove (21) is also provided with a reset mechanism (15). The reset mechanism (15) includes a pneumatic telescopic rod (151) and a reset block (152). The reset block (152) is located in the mounting groove (21) and connected to the lower mold slider (5). The pneumatic telescopic rod (151) drives its telescopic end to extend and abut against the reset block (152).

10. The side forming mold for high-strength plates according to claim 1, characterized in that, The upper mold base (1) is provided with a guide post (16), and the lower mold base (2) is provided with a guide sleeve (17) that cooperates with the guide post (16).

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