Curved surface sheet metal processing and forming device

Abstract

The utility model relates to the technical field of sheet metal part machining, and discloses a curved surface sheet metal machining forming device which comprises a lower die, a fixing block is fixedly connected to the rear side of the top of the lower die, an adjusting plate is rotationally connected to the top of the outer wall of the fixing block, and a rack is fixedly connected to the middle of the inner wall of the adjusting plate. Sliding strips are fixedly connected to the front side and the rear side of the outer wall of the adjusting plate correspondingly, an upper mold is fixedly connected to the bottom of the outer wall of the fixing strip, and clamping mechanisms are in threaded connection to the four corners of the top of the lower mold and used for clamping and fixing the curved surface metal plate. The fixing block is installed on the rear side of the lower die, supports rotation of the adjusting plate and provides conditions for accurate movement of the upper die, the sliding strip of the adjusting plate and the connecting plate form a sliding mechanism, stable sliding of the connecting plate is guaranteed, stability of movement of the upper die is guaranteed, and influence of machining process parameters on product quality is small. And the defects of wrinkling, cracking and springback are not easy to occur.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a curved sheet metal processing and forming device. Background Technology

[0002] Curved sheet metal is an important concept in the sheet metal processing field. It refers to processing sheet metal into curved shapes using specific processes. The raw materials for curved sheet metal are mainly sheet metal with good ductility and plasticity, which allows it to undergo plastic deformation under external force without breaking, thus being processed into the desired curved shape. Different sheet metals are suitable for different applications due to their differences in physical and chemical properties.

[0003] Curved sheet metal forming equipment is a combination of equipment and systems specifically designed to process metal sheets into sheet metal parts with specific curved shapes. It integrates multiple technologies and functions to achieve precise shaping of metal sheets and meet the needs of different industries for curved sheet metal parts. However, in existing curved sheet metal forming equipment, different processing techniques are applicable to specific curved shapes and sheet types. Complex free-form surfaces are difficult to complete with a single process and require the combination of multiple processes, which increases the processing difficulty and cost. Processing parameters have a significant impact on product quality, and improper parameter settings can easily lead to defects such as wrinkling, cracking, and springback. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a curved sheet metal processing and forming device, which aims to improve the existing technology where different processing techniques are applicable to specific curved surface shapes and sheet types, and complex free curved surfaces are difficult to complete with a single process, requiring the combination of multiple processes, which increases processing difficulty and cost. The processing parameters have a great impact on product quality, and improper parameter settings can easily lead to defects such as wrinkling, cracking and springback.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a curved sheet metal processing and forming device, including a lower mold, a fixing block fixedly connected to the top rear side of the lower mold, an adjusting plate rotatably connected to the top of the outer wall of the fixing block, a rack fixedly connected to the middle of the inner wall of the adjusting plate, slide bars fixedly connected to the front and rear sides of the outer wall of the adjusting plate, a connecting plate slidably connected to the right side of the outer wall of the adjusting plate, a motor fixedly connected to the top of the outer wall of the connecting plate, a gear fixedly connected to the output end of the motor, the gear meshing with the rack, a fixing frame fixedly connected to the four sides of the outer wall of the lower mold, an electric push rod fixedly connected to the top of the outer wall of the fixing frame, a fixing strip rotatably connected to the output end of the electric push rod, the fixing strip fixedly connected to the right side of the outer wall of the connecting plate, an upper mold fixedly connected to the bottom of the outer wall of the fixing strip, and a clamping mechanism threadedly connected to the four corners of the top of the lower mold, the clamping mechanism being used to clamp and fix the curved sheet metal.

[0006] As a further description of the above technical solutions:

[0007] The clamping mechanism comprises a supporting plate fixedly connected at the top four corners of the lower mold, a fixed groove fixedly connected on one side of the outer wall of the supporting plate, an adjusting rod rotatably connected on the inner wall of the fixed groove, a handle fixedly connected to the other end of the adjusting rod, a clamping rod slidably connected in the middle of the inner wall of the fixed groove, a buffer pad fixedly connected to the middle of the outer wall of the clamping rod, and a clamping block fixedly connected to the other end of the buffer pad.

[0008] As a further description of the above technical solutions:

[0009] The outer wall of the fixed strip is fixedly connected with a plurality of auxiliary plates on the left side, and the outer wall of the auxiliary plate is rotatably connected with a roller on the left side.

[0010] As a further description of the above technical solutions:

[0011] The outer wall of the lower mold is fixedly connected with a positioning plate at the top, and the outer wall of the positioning plate is rotatably connected with a fixing mechanism at the top.

[0012] As a further description of the above technical solutions:

[0013] The outer wall of the lower mold is fixedly connected with a supporting column at the bottom, and the outer wall of the supporting column is fixedly connected with a plurality of supporting rods at the top.

[0014] As a further description of the above technical solutions:

[0015] The outer wall of the electric push rod is fixedly connected with a wear-resistant pad at the bottom, and the outer wall of the wear-resistant pad is threadedly connected with a.

[0016] As a further description of the above technical solutions:

[0017] The outer wall of the connecting plate is rotatably connected with a plurality of auxiliary wheels in front and back, and the outer wall of the connecting plate is threadedly connected with a bolt two at the top.

[0018] As a further description of the above technical solutions:

[0019] The top four corners of the fixed frame are fixedly connected with a gasket, and the inner wall of the fixed frame is fixedly connected with an inclined plate on one side.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the fixed block is installed at the rear side of the lower mold, the support adjusting plate rotates, and the conditions for the accurate movement of the upper mold are provided, the sliding bar and the connecting plate of the adjusting plate constitute a sliding mechanism, the stable sliding of the connecting plate is ensured, the stability of the movement of the upper mold is ensured, the motor drives the gear to rotate, is engaged with the rack of the inner wall of the adjusting plate, the horizontal position of the upper mold can be accurately adjusted through the control motor, the electric push rod is fixed on the fixed frame, and the upper mold is driven to move up and down through the telescopic movement, the mold closing action is completed, the pressure is applied to the sheet metal material, the processing and molding are completed, after processing, the electric push rod makes the upper mold rise, the mold opening is realized, the workpiece is convenient to take out, and the utility model is suitable for specific curved surface shape and plate type, the different mold processes are used for the complex free curved surface, the processing difficulty and cost are reduced, the processing process parameters have little influence on product quality, and the defects such as wrinkling, rupture and springback are not prone to occur.

[0022] 2. In the utility model, the adjusting rod is installed in the inner wall of the fixed groove, the handle is fixed at one end of the adjusting rod, the operator rotates the adjusting rod, is engaged with the clamping rod through the thread cooperation, the clamping rod is slid in the fixed groove, the fixed groove limits the movement direction of the clamping rod, the buffer pad and the clamping block are fixed on the clamping rod, when the clamping block contacts the workpiece, the buffer pad prevents the workpiece surface from being damaged by overpressure, four corners of the lower mold are provided with the clamping structure, the clamping block is clamped to the workpiece by operating the adjusting rod, the stability of the workpiece in processing is ensured, displacement is prevented, and the processing precision and quality are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the perspective view of the curved surface sheet metal processing and molding device provided by the utility model;

[0024] Figure 2 It is the right view of the curved surface sheet metal processing and molding device provided by the utility model;

[0025] Figure 3 It is the partial structure diagram of the curved surface sheet metal processing and molding device provided by the utility model;

[0026] Figure 4 It is the partial structure split diagram of the curved surface sheet metal processing and molding device provided by the utility model;

[0027] Figure 5 It is the clamping mechanism split diagram of the curved surface sheet metal processing and molding device provided by the utility model.

[0028] Legend:

[0029] 1, the lower mold; 2, clamping mechanism; 201, support plate; 202, fixed groove; 203, adjusting rod; 204, handle; 205, clamping rod; 206, buffer pad; 207, clamping block; 3, fixed block; 4, adjusting plate; 5, rack; 6, slide bar; 7, connecting plate; 8, motor; 9, gear; 10, fixed bar; 11, fixed frame; 12, electric push rod; 13, upper mold; 14, auxiliary plate; 15, roller; 16, positioning plate; 17, fixing mechanism; 18, support column; 19, support rod; 20, wear pad; 21, bolt one; 22, auxiliary wheel; 23, bolt two; 24, gasket; 25, inclined plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Referring to Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: curved surface sheet metal processing forming device, including lower mold 1, the top rear side of lower mold 1 is fixedly connected with fixed block 3, the outer wall top of fixed block 3 is rotatably connected with adjusting plate 4, the inner wall middle part of adjusting plate 4 is fixedly connected with rack 5, the outer wall front and rear side of adjusting plate 4 is fixedly connected with slide bar 6, the outer wall right side of adjusting plate 4 is slidably connected with connecting plate 7, the outer wall top of connecting plate 7 is fixedly connected with motor 8, the output end of motor 8 is fixedly connected with gear 9, gear 9 is engagedly connected with rack 5, the outer wall all around of lower mold 1 is fixedly connected with fixed frame 11, the outer wall top of fixed frame 11 is fixedly connected with electric push rod 12, the output end of electric push rod 12 is rotatably connected with fixed bar 10, fixed bar 10 is fixedly connected on the outer wall right side of connecting plate 7, the outer wall bottom of fixed bar 10 is fixedly connected with upper mold 13, the top four corner places of lower mold 1 are threadedly connected with clamping mechanism 2, clamping mechanism 2 is used for clamping fixed curved surface sheet metal, the outer wall left side of fixed bar 10 is fixedly connected with multiple auxiliary plates 14, the outer wall left side of auxiliary plate 14 is rotatably connected with roller 15;

[0032] Specific, fixed block 3 is installed in the lower die 1 rear side, support adjusting plate 4 rotation, allow parts in a certain angle adjustment position, for the upper die 13 accurate movement provides conditions. Adjusting plate 4 slide 6 and connecting plate 7 constitute a sliding mechanism, ensure the smooth sliding of connecting plate 7, ensure the stability of the upper die 13 movement. Motor 8 drive gear 9 rotation, with adjusting plate 4 inner wall rack 5 meshing, the rotary motion into linear motion. By controlling the motor 8, can accurately adjust the horizontal position of the upper die 13. Electric push rod 12 is fixed on the fixed frame 11, through the telescopic movement of the upper die 13 drive up and down, complete the action of die, to the sheet metal material to exert pressure, complete processing forming. After processing, electric push rod 12 makes the upper die 13 rises, realize the opening of the mold, facilitate the removal of the workpiece, the top four corners of the lower die 1 is screw connected with clamping mechanism 2, clamping mechanism 2 is used for clamping fixed curved sheet metal, a plurality of auxiliary plates 14 are fixedly connected on the outer wall left side of the fixed strip 10, the auxiliary plate 14 not only enhances the stability of the structure, but also plays an important role in function. The outer wall left side of each auxiliary plate 14 is rotatably connected with the roller 15, so that the whole structure is more flexible and convenient when moving or adjusting position.

[0033] Referring to Figure 1 , Figure 2 and Figure 5 , the clamping mechanism 2 comprises a support plate 201, the support plate 201 is fixedly connected at the top of the four corners of the lower die 1, the outer wall of the support plate 201 is fixedly connected with a fixed groove 202 on the adjacent side, the inner wall of the fixed groove 202 is rotatably connected with an adjusting rod 203, the other end of the adjusting rod 203 is fixedly connected with a handle 204, the inner wall of the fixed groove 202 is slidably connected with a clamping rod 205 in the middle, the outer wall of the clamping rod 205 is fixedly connected with a buffer pad 206 in the middle, the other end of the buffer pad 206 is fixedly connected with a clamping block 207, the outer wall of the lower die 1 is fixedly connected with a positioning plate 16 at the top, the outer wall of the positioning plate 16 is rotatably connected with a fixed mechanism 17 at the top, the outer wall of the lower die 1 is fixedly connected with a support column 18 at the bottom, the outer wall of the support column 18 is fixedly connected with a plurality of support rods 19 at the top;

[0034] Specific, adjust the rod 203 is installed in the fixed groove 202 inner wall, through the rotating connection mode, handle 204 is fixed in adjust the rod 203 one end. The operator rotates adjust the rod 203, with clamping rod 205 through threaded cooperation, makes clamping rod 205 slide in fixed groove 202. Fixed groove 202 limits the movement direction of clamping rod 205, buffer pad 206 and clamping block 207 are fixed on clamping rod 205, when clamping block 207 contacts workpiece, buffer pad 206 prevents overpressure damage workpiece surface. Four corners of lower mould 1 are provided with clamping structure, operating adjust the rod 203 makes clamping block 207 clamp workpiece, ensures that workpiece is stable in processing, prevents displacement, guarantees processing precision and quality, is fixedly connected on the positioning plate 16 on the outer wall top of lower mould 1, the outer wall top of positioning plate 16 is rotatably connected with fixed mechanism 17, increases the firmness of structure, is connected with support column 18 on the outer wall bottom of lower mould 1, the outer wall top of support column 18 is also fixedly connected with multiple support rods 19, these support rods 19 play an important supporting role in structure, prevent structure from shaking when running.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , the outer wall bottom of electric push rod 12 is fixedly connected with wear-resistant pad 20, the outer wall four corners of wear-resistant pad 20 are threadedly connected with bolt one 21, multiple auxiliary wheels 22 are rotatably connected on the outer wall of connecting plate 7, bolt two 23 is threadedly connected on the outer wall top of connecting plate 7, gasket 24 is fixedly connected at the top four corners of fixed frame 11, inclined plate 25 is fixedly connected on the inner wall of fixed frame 11.

[0036] Specifically, the motor 8 rotates through the transmission device to convert into linear motion, generates push-pull force, completes linear reciprocating action, the wear-resistant pad 20 is fixed at the bottom of the electric push rod 12, protects it from wear and tear, prolongs the service life. Through four corners threadedly connected bolt one 21, ensure reliable fixation, connecting plate 7 as a connecting support component, provides installation position and support, auxiliary wheel 22 is rotatably connected on the outer wall of connecting plate 7, auxiliary support, guide, reduce friction, make the device move smoothly, reduce load, keep balance and stability, bolt two 23 is threadedly connected on the outer wall top of connecting plate 7, utilize friction force to make connecting plate 7 and other components tightly connected, ensure the normal work and connection reliability of the device, fixed frame 11 supports other components, provides structural support and stability, gasket 24 is fixed on the top of fixed frame 11, increases the sealing, compensates the dimensional error, disperses the pressure, improves the connection reliability and stability, inclined plate 25 is fixed on the inner wall of fixed frame 11, enhances the structural strength and stability, guides the shunt or supports other components, meets the specific work requirements.

[0037] Working principle: fixed block 3 is fixed on the top of the lower die 1 rear side, for the adjustment plate 4 provides rotating support, adjustment plate 4 can rotate around the fixed block 3, so that the components connected with the adjustment plate 4 can adjust the position within a certain angle range, for the precise movement of the upper die 13 creates conditions, adjustment plate 4 front and rear side of the slide 6 and connecting plate 7 constitute a sliding mechanism, slide 6 to the sliding of connecting plate 7 plays a guiding role, to ensure that the connecting plate 7 can along the adjustment plate 4 smooth sliding, in turn to ensure the stability of the upper die 13 when moving, motor 8 is fixed on the top of the connecting plate 7, motor 8 when running gear 9 of the output end rotates, because gear 9 and the inner wall of the adjustment plate 4 rack 5 meshing, the rotary motion of gear 9 will be converted into the linear motion of connecting plate 7 along the adjustment plate 4. By controlling the motor 8 of the positive and negative rotation and speed, can accurately control the moving direction and speed of connecting plate 7, so as to fine adjustment of the position of the upper die 13 in the horizontal direction, electric push rod 12 is fixed on the top of the fixed frame 11, its output end is connected with the fixed bar 10 rotation, and the fixed bar 10 and the right side of the connecting plate 7 fixed, electric push rod 12 through the electric energy into mechanical energy, realize the telescopic movement of the output end, when the output end of the electric push rod 12 stretch out and retract, will drive the fixed bar 10 and the connecting plate 7 and the upper die 13 connected with it up and down, the upper die 13 is fixed on the bottom of the fixed bar 10, electric push rod 12 drive the upper die 13 downward movement with the lower die 1 complete the die action, on the placement between the two metal materials to exert pressure, so that it produces plastic deformation, thus complete the processing of curved sheet metal forming, after processing, the output end of the electric push rod 12 retract, drive the upper die 13 to rise, realize the mold, convenient to take out the workpiece after forming;

[0038] The adjusting rod 203 is installed in the inner wall of the fixed groove 202 by a rotating connection, the handle 204 is fixed at one end of the adjusting rod 203, and an operator holds the handle 204 to rotate the adjusting rod 203, and due to the rotating connection relationship between the adjusting rod 203 and the fixed groove 202, this prepares for subsequent pushing of the clamping rod 205. When the adjusting rod 203 is rotated, the adjusting rod 203 interacts with the clamping rod 205 through threaded cooperation, so that the clamping rod 205 linearly slides in the middle of the inner wall of the fixed groove 202, because the fixed groove 202 plays a guiding role and limits the movement direction of the clamping rod 205, so that it can only move along the specified path of the fixed groove 202, the buffer pad 206 is fixed in the middle of the clamping rod 205, and the clamping block 207 is fixed at the other end of the buffer pad 206, when the clamping rod 205 is pushed and slides by the adjusting rod 203, the clamping block 207 is also moved, when the clamping block 207 contacts the metal workpiece to be processed, the buffer pad 206 plays a buffering role, avoids that the clamping block 207 applies excessive pressure to the workpiece and causes damage to the surface of the workpiece, and can also adapt to the unevenness of the surface of the workpiece to a certain extent, so as to ensure the stability and reliability of clamping, the four corners at the top of the lower die 1 are provided with such clamping structures, by respectively operating the adjusting rods 203, the clamping blocks 207 at the four positions are close to the workpiece and finally clamp the workpiece, so that the workpiece can be firmly fixed on the lower die 1 during the metal processing process, and displacement of the workpiece during stamping and other processing operations is prevented, so as to ensure the processing precision and quality.

[0039] Finally, it should be noted that: the above only preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A device for forming a curved sheet metal part, comprising a lower die (1), characterized in that: The top rear side of the lower mold (1) is fixedly connected with a fixed block (3), the outer wall top of the fixed block (3) is rotatably connected with an adjusting plate (4), the inner wall middle part of the adjusting plate (4) is fixedly connected with a rack (5), the outer wall front and rear sides of the adjusting plate (4) are fixedly connected with a sliding bar (6), the outer wall right side of the adjusting plate (4) is slidably connected with a connecting plate (7), the outer wall top of the connecting plate (7) is fixedly connected with a motor (8), the output end of the motor (8) is fixedly connected with a gear (9), the gear (9) is meshingly connected with the rack (5), the outer wall all around of the lower mold (1) is fixedly connected with a fixed frame (11), the outer wall top of the fixed frame (11) is fixedly connected with an electric push rod (12), the output end of the electric push rod (12) is rotatably connected with a fixed strip (10), the fixed strip (10) is fixedly connected to the outer wall right side of the connecting plate (7), the outer wall bottom of the fixed strip (10) is fixedly connected with an upper mold (13), the top four corner parts of the lower mold (1) are threadedly connected with a clamping mechanism (2), and the clamping mechanism (2) is used for clamping and fixing the curved surface sheet metal.

2. The curved sheet metal forming device of claim 1, wherein: The clamping mechanism (2) comprises a supporting plate (201), the supporting plate (201) is fixedly connected to the top four corner parts of the lower mold (1), the outer wall adjacent side of the supporting plate (201) is fixedly connected with a fixed groove (202), the inner wall of the fixed groove (202) is rotatably connected with an adjusting rod (203), the other end of the adjusting rod (203) is fixedly connected with a handle (204), the inner wall middle part of the fixed groove (202) is slidably connected with a clamping rod (205), the outer wall middle part of the clamping rod (205) is fixedly connected with a buffer pad (206), the other end of the buffer pad (206) is fixedly connected with a clamping block (207).

3. The curved sheet metal forming device of claim 1, wherein: The outer wall left side of the fixed strip (10) is fixedly connected with a plurality of auxiliary plates (14), the outer wall left side of the auxiliary plate (14) is rotatably connected with a roller (15).

4. The curved sheet metal forming device of claim 1, wherein: The outer wall top of the lower mold (1) is fixedly connected with a positioning plate (16), and the outer wall top of the positioning plate (16) is rotatably connected with a fixing mechanism (17).

5. The curved sheet metal forming device of claim 1, wherein: The outer wall bottom of the lower mold (1) is fixedly connected with a supporting column (18), and the outer wall top of the supporting column (18) is fixedly connected with a plurality of supporting rods (19).

6. The curved sheet metal forming device of claim 1, wherein: The outer wall bottom of the electric push rod (12) is fixedly connected with a wear-resistant pad (20), and the outer wall four corner parts of the wear-resistant pad (20) are threadedly connected with (21).

7. The curved sheet metal forming device of claim 1, wherein: The outer wall front and rear of the connecting plate (7) are rotatably connected with a plurality of auxiliary wheels (22), and the outer wall top of the connecting plate (7) is threadedly connected with a bolt two (23).

8. The curved sheet metal forming device of claim 1, wherein: The top four corner parts of the fixed frame (11) are fixedly connected with a gasket (24), and the inner wall adjacent sides of the fixed frame (11) are fixedly connected with an inclined plate (25).

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