Sheet metal part bending machine

Abstract

The utility model provides a sheet metal part bending machine. The sheet metal part bending machine comprises a machine frame, a plurality of sets of supporting blocks, a lower die and an upper die. The multiple sets of supporting blocks are transversely arranged on the rack in a replaceable and sliding mode, mounting grooves are formed in the upper ends of each set of supporting blocks, and the positions of the mounting grooves in the different sets of supporting blocks are different. And the direction of a connecting line of the two open ends of the mounting groove is the same as the sliding direction of the supporting block. According to the utility model, the supporting block is replaced firstly, and then the lower die is placed in the mounting groove. The V-shaped groove is automatically aligned with the upper die above the V-shaped groove after the position of the lower die in the V-shaped groove is changed in the Y direction due to different mounting grooves, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of bending equipment technology, specifically to a sheet metal bending machine. Background Technology

[0002] Bending machines are widely used in sheet metal bending processes. The lower die of a bending machine is a long, cylindrical shape with a V-shaped groove for bending. Together with the upper die, it can bend sheet metal parts.

[0003] The number of V-grooves on the lower die of the bending machine is variable, with multiple different V-grooves cut into the outer wall of the multi-groove lower die. Depending on the bending requirements of the sheet metal parts, the strip-shaped multi-groove lower die switches between different V-grooves by rotating and moving to accommodate production. However, each rotation of the lower die requires translation to adjust the position of the V-grooves, aligning them with the upper die above, and then fixing them in place using a fixing mechanism, making the operation rather cumbersome. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a sheet metal bending machine, which can solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] This utility model provides a sheet metal bending machine, comprising:

[0006] frame;

[0007] Multiple sets of support blocks are interchangeably and slidably mounted on the frame. Each set of support blocks has a mounting groove at its upper end, and the mounting grooves on different sets of support blocks are in different positions.

[0008] The lower mold can be placed into the mounting slot; and

[0009] The upper mold is mounted on the frame in a height-adjustable manner.

[0010] Preferably, it further includes:

[0011] Two connecting rods are respectively connected to both ends of the lower mold;

[0012] Two connecting blocks, each of which is rotatably connected to the end of one of the two connecting rods furthest from the lower mold; and

[0013] Two sets of drive mechanisms are used to drive the corresponding connecting blocks to move up and down, and the two sets of drive mechanisms are also used to drive the corresponding connecting blocks to move in a direction perpendicular to the sliding of the support block.

[0014] Preferably, the drive mechanism includes:

[0015] Support frame, which is connected to the frame;

[0016] A slider is slidably mounted on the support frame, and the sliding direction of the slider is perpendicular to the sliding direction of the support block. Two guide holes are provided on the slider.

[0017] Two guide rods, the lower ends of which are connected to the connecting block, and the upper ends of which pass through the corresponding guide holes and are connected to the stop blocks;

[0018] A drive component is used to drive the connecting block to move up and down;

[0019] The stop block can be moved down and abut against the slider.

[0020] Preferably, the slider also has a through drive hole;

[0021] The driving component includes:

[0022] A connecting pipe, the lower end of which is connected to the connecting block;

[0023] A limiting ring is connected to the inner wall of the upper end of the connecting pipe;

[0024] A hydraulic cylinder, connected to the slider; and

[0025] The upper end of the drive rod is connected to the output end of the hydraulic cylinder, and the lower end passes through the drive hole and the limiting ring and is connected to the limiting block.

[0026] The limiting block can abut against the limiting ring.

[0027] Preferably, the frame includes a strip-shaped mounting base; a limiting groove is formed at the lower end of the support block; the limiting groove can be clearance-fitted with the strip-shaped mounting base; inclined guide surfaces are provided on both sides of the opening of the mounting groove; the guide surfaces are used to guide the lower mold.

[0028] Preferably, it further includes:

[0029] The linkage rod is rotatably mounted on the frame; and

[0030] Two placement wheels are respectively connected to both ends of the linkage rod, and multiple storage blocks arranged along its circumference are connected to the outer periphery of each placement wheel;

[0031] The storage block and the limiting groove on the support block are slidably engaged along the axial direction of the linkage rod; each storage block has one or more support blocks slidably engaged.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] In this invention, the support block is replaced first, and then the lower mold is placed into the mounting slot. Different mounting slots allow the lower mold to change position in the Y direction, automatically aligning the V-groove with the upper mold above, making operation convenient. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0035] Figure 1 This is a perspective view of a sheet metal bending machine according to one embodiment of the present utility model;

[0036] Figure 2 for Figure 1 A 3D view showing the interaction between the lower and middle molds and the drive mechanism;

[0037] Figure 3 for Figure 2 Left side view (without right-side drive mechanism);

[0038] Figure 4 for Figure 3 Sectional view at the middle slider;

[0039] Figure 5 for Figure 1 A three-dimensional view showing the alignment of the centrally mounted wheels with the frame.

[0040] Figure label:

[0041] 10. Rack; 11. Strip mounting base;

[0042] 20. Support block; 21. Mounting groove; 22. Limiting groove; 23. Guide surface; 24. Fixing groove;

[0043] 30. Lower mold;

[0044] 40. Upper mold;

[0045] 50. Connecting rod;

[0046] 60. Connecting block;

[0047] 70. Drive mechanism; 71. Support frame; 72. Slider; 721. Guide hole; 722. Drive hole; 73. Guide rod; 74. Stop block; 75. Drive assembly; 751. Connecting pipe; 752. Limit ring; 753. Hydraulic cylinder; 754. Drive rod; 755. Limit block;

[0048] 80. Linkage rod; 81. Mounting wheel; 82. Storage block; 83. Sliding protrusion. Detailed Implementation

[0049] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0050] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0051] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] See Figures 1 to 5 This embodiment provides a sheet metal bending machine, including a frame 10, multiple sets of support blocks 20, a lower die 30 and an upper die 40.

[0056] Multiple sets of support blocks 20 are replaceably and slidably mounted on the frame 10. Each set of support blocks 20 has a mounting groove 21 at its upper end. The positions of the mounting grooves 21 on different sets of support blocks 20 are different. The two ends of the mounting groove 21 are open, and the direction of the line connecting the two open ends of the mounting groove 21 is the same as the sliding direction of the support block 20.

[0057] The lower mold 30 can be placed into the mounting slot 21. The multi-groove lower mold 30 is a horizontally placed straight quadrangular prism structure. Different V-grooves are respectively opened on the four end faces of the same size that form a circumference of the multi-groove lower mold 30. Specifically, as shown... Figure 1 and Figure 5 The sliding direction of the support block 20 is denoted as the X direction. The position of the mounting groove 21 on different support blocks 20 changes in the Y direction. The mounting groove 21 restricts the lower die 30 within it from sliding along the Y direction. The upper die 40 is vertically mounted on the frame 10. The upper die 40 is located above the support block 20, and the distance between the support block 20 and the upper die 40 remains constant during sliding. During operation, the upper die 40 moves down and engages with the V-groove to bend the sheet metal part.

[0058] In this embodiment, the V-groove of the multi-groove lower die 30 needs to be switched to accommodate different bending requirements. Different V-grooves on the lower die 30 correspond to different sets of support blocks 20. When switching V-grooves on the lower die 30, the support blocks 20 are replaced first, and then the lower die 30 is placed into the mounting slot 21. Different mounting slots 21 allow the lower die 30 to automatically align with the upper die 40 after its position changes in the Y direction, making operation convenient. Each set of support blocks 20 includes multiple support blocks 20, which can be evenly placed at the lower end of the lower die 30, providing good support.

[0059] In one embodiment, the sheet metal bending machine further includes two connecting rods 50, two connecting blocks 60, and two sets of drive mechanisms 70.

[0060] Two connecting rods 50 are connected to both ends of the lower mold 30. Two connecting blocks 60 are rotatably connected to the ends of the two connecting rods 50 away from the lower mold 30. Two sets of drive mechanisms 70 are used to drive the corresponding connecting blocks 60 to move up and down, and the two sets of drive mechanisms 70 are also used to drive the corresponding connecting blocks 60 to move in the direction perpendicular to the sliding of the support block 20 (Y direction).

[0061] In this embodiment, as Figure 1 and Figure 5 The lower mold 30 is relatively heavy, and is driven by the drive mechanism 70, which makes it easier to switch V-grooves. Each time the lower mold 30 switches V-grooves, the drive mechanism 70 drives the connecting block 60 to raise the lower mold 30, and then the support block 20 is replaced. The mounting groove 21 on the support block 20 is in a different position in the Y direction for different V-grooves. At this time, the drive mechanism 70 will drive the lower mold 30 to move in the Y direction through the connecting block 60, and then the lower mold 30 will descend into the mounting groove 21. At this time, the selected V-groove on the support block 20 is aligned with the upper mold 40 above.

[0062] In one embodiment, the drive mechanism 70 includes a support frame 71, a slider 72, two guide rods 73, and a drive assembly 75.

[0063] The support frame 71 is connected to the frame 10. A slider 72 is slidably mounted on the support frame 71. The slider 72 has two through holes along the Y direction. The support frame 71 includes two support rods, which slide in conjunction with the two through holes on the slider. The sliding direction of the slider 72 is perpendicular to the sliding direction of the support block 20. The slider 72 has two guide holes 721. The lower ends of both guide rods 73 are connected to the connecting block 60, and the upper ends of the two guide rods 73 pass through the corresponding guide holes 721 and are connected to a stop block 74. The stop block 74 can move downwards and abut against the slider 72. The drive assembly 75 is used to drive the connecting block 60 to rise and fall.

[0064] In this embodiment, the slider 72 is pushed to slide, which causes the lower mold 30 to move in the Y direction, so that the lower mold 30 can fall into the mounting groove 21 after descending, thereby aligning the V-groove on the lower mold 30 with the upper mold 40.

[0065] In one embodiment, the slider 72 also has a through drive hole 722.

[0066] The drive assembly 75 includes a connecting pipe 751, a limiting ring 752, a hydraulic cylinder 753, and a drive rod 754.

[0067] The lower end of the connecting pipe 751 is connected to the connecting block 60. The limiting ring 752 is connected to the inner wall of the upper end of the connecting pipe 751. The hydraulic cylinder 753 is connected to the slider 72. Specifically, a mounting bracket is provided on the slider 72, and the hydraulic cylinder 753 is placed inverted on the mounting bracket. The upper end of the drive rod 754 is connected to the output end of the hydraulic cylinder 753, and the lower end of the drive rod 754 passes through the drive hole 722 and the limiting ring 752 and is connected to the limiting block 755. The limiting block 755 can abut against the limiting ring 752.

[0068] In this embodiment, the hydraulic cylinder 753 drives the drive rod 754 and the limiting block 755 to rise, which in turn drives the limiting ring 752 and the connecting pipe 751 to rise, thereby driving the connecting block 60 and the lower mold 30 to rise. After the drive rod 754 descends a certain distance under the drive of the hydraulic cylinder 753, the limiting block 755 disengages from the limiting ring 752, and the lower mold 30 falls into the mounting groove 21 under the action of gravity. This avoids rigid contact between the lower end of the drive rod 754 and the connecting block 60.

[0069] In one embodiment, the frame 10 includes a strip-shaped mounting base 11; a limiting groove 22 is formed at the lower end of the support block 20; the limiting groove 22 can be clearance-fitted with the strip-shaped mounting base 11. Inclined guide surfaces 23 are provided on both sides of the opening of the mounting groove 21. The guide surfaces 23 are used to guide the lower mold 30. The limiting grooves 22 of the support blocks 20 in different groups are in the same position, while the positions of the mounting grooves 21 differ in the Y direction.

[0070] In this embodiment, the support block 20 is placed on the strip mounting base 11. During the descent of the lower mold 30, it contacts the guide surface 23 at the opening of the mounting groove 21. Even if the lower mold 30 is slightly deviated, it can still slide into the mounting groove 21 under the guidance of the guide surface 23, thereby aligning the V-groove on the lower mold 30 with the upper mold 40.

[0071] In one embodiment, the sheet metal bending machine further includes a linkage 80 and two mounting wheels 81.

[0072] The linkage rod 80 is rotatably mounted on the frame 10. Two mounting wheels 81 are respectively connected to the two ends of the linkage rod 80, and multiple storage blocks 82 arranged circumferentially are connected to the outer periphery of each mounting wheel 81.

[0073] The storage block 82 and the limiting groove 22 on the support block 20 are slidably engaged along the axial direction of the linkage rod 80; each storage block 82 has one or more support blocks 20 slidably engaged. Specifically, fixing grooves 24 are provided on the inner walls of both sides of the limiting groove 22; sliding protrusions 83 are provided on both sides of the storage block 82; the sliding protrusions 83 are slidably engaged with the fixing grooves 24. The engagement of the sliding protrusions 83 and the fixing grooves 24 also ensures that the support block 20 will not disengage from the placement wheel 81 when the placement wheel 81 rotates.

[0074] In this embodiment, the two placement wheels 81 rotate synchronously, and the support block 20 on the upper side of the placement wheel 81 can slide from the storage block 82 onto the strip mounting base 11. The two ends of the strip mounting base 11 near the placement wheel 81 are chamfered, making it easier for the support block 20 to slide from the storage block 82 onto the strip mounting base 11. The same group of support blocks 20 may include four support blocks 20, with two support blocks 20 slidably placed on one storage block 82. When it is necessary to replace the support block 20, first slide the support block 20 on the strip mounting base 11 onto the storage blocks 82 on both sides, and then rotate the placement wheel 81 to slide the replacement support block 20 from the storage block 82 onto the strip mounting base 11. During the above process, the strip mounting base 11 and the storage block 82 are aligned. Since the storage blocks 82 and support blocks 20 are evenly distributed on the placement wheel 81, the operation of rotating the placement wheel 81 for switching is relatively convenient.

[0075] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A sheet metal bending machine, characterized in that, include: Rack (10); Multiple sets of support blocks (20) are interchangeably and slidably mounted on the frame (10). Each set of support blocks (20) has an installation groove (21) at its upper end. The positions of the installation grooves (21) on different sets of support blocks (20) are different. The lower mold (30) can be placed into the mounting slot (21); and The upper mold (40) is mounted on the frame (10) in a height-adjustable manner.

2. The sheet metal bending machine as described in claim 1, characterized in that, Also includes: Two connecting rods (50) are respectively connected to both ends of the lower mold (30); Two connecting blocks (60), each of the two connecting blocks (60) being rotatably connected to one end of each of the two connecting rods (50) away from the lower mold (30); and Two sets of drive mechanisms (70) are used to drive the corresponding connecting block (60) to move up and down. The two sets of drive mechanisms (70) are also used to drive the corresponding connecting block (60) to move in a direction perpendicular to the sliding direction of the support block (20).

3. A sheet metal bending machine as described in claim 2, characterized in that, The drive mechanism (70) includes: A support frame (71) is connected to the frame (10); A slider (72) is slidably mounted on the support frame (71). The sliding direction of the slider (72) is perpendicular to the sliding direction of the support block (20). Two guide holes (721) are provided on the slider (72). Two guide rods (73), the lower ends of the two guide rods (73) are connected to the connecting block (60), and the upper ends of the two guide rods (73) pass through the corresponding guide holes (721) and are connected to the stop blocks (74); A drive assembly (75) is used to drive the connecting block (60) to move up and down; The stop (74) can be moved down and abut against the slider (72).

4. A sheet metal bending machine as described in claim 3, characterized in that, The slider (72) is also provided with a through drive hole (722); The drive component (75) includes: A connecting pipe (751), the lower end of which is connected to the connecting block (60); The limiting ring (752) is connected to the inner wall of the upper end of the connecting pipe (751); A hydraulic cylinder (753) is connected to the slider (72); and The upper end of the drive rod (754) is connected to the output end of the hydraulic cylinder (753), and the lower end passes through the drive hole (722) and the limiting ring (752) and is connected to the limiting block (755). The limiting block (755) can abut against the limiting ring (752).

5. A sheet metal bending machine as described in any one of claims 2-4, characterized in that, The frame (10) includes a strip mounting base (11); the lower end of the support block (20) is provided with a limiting groove (22); the limiting groove (22) can be clearance-fitted with the strip mounting base (11); the opening of the mounting groove (21) is provided with inclined guide surfaces (23) on both sides; the guide surfaces (23) are used to guide the lower mold (30).

6. A sheet metal bending machine as described in claim 5, characterized in that, Also includes: Linkage rod (80) is rotatably mounted on the frame (10); as well as Two placement wheels (81) are respectively connected to the two ends of the linkage rod (80), and each placement wheel (81) has multiple storage blocks (82) arranged along its circumference connected to its outer periphery; The storage block (82) and the limiting groove (22) on the support block (20) are slidably engaged along the axial direction of the linkage rod (80); each storage block (82) is slidably engaged with one or more of the support blocks (20).

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